| 1 | --- a/Rules.mak |
| 2 | +++ b/Rules.mak |
| 3 | @@ -477,6 +477,17 @@ ifeq ($(TARGET_ARCH),microblaze) |
| 4 | SYMBOL_PREFIX=_ |
| 5 | endif |
| 6 | |
| 7 | +ifeq ($(TARGET_ARCH),ubicom32) |
| 8 | + OPTIMIZATION+=-fstrict-aliasing |
| 9 | + CPU_CFLAGS-$(CONFIG_UBICOM32_V3)+=-march=ubicom32v3 |
| 10 | + CPU_CFLAGS-$(CONFIG_UBICOM32_V4)+=-march=ubicom32v4 |
| 11 | +ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y) |
| 12 | + CPU_CFLAGS-y:=-mfdpic |
| 13 | + CPU_LDFLAGS-y += -Wl,-melf32ubicom32fdpic |
| 14 | +endif |
| 15 | + |
| 16 | +endif |
| 17 | + |
| 18 | ifeq ($(TARGET_ARCH),v850) |
| 19 | SYMBOL_PREFIX=_ |
| 20 | endif |
| 21 | --- a/extra/Configs/Config.in |
| 22 | +++ b/extra/Configs/Config.in |
| 23 | @@ -102,6 +102,9 @@ config TARGET_sh64 |
| 24 | config TARGET_sparc |
| 25 | bool "sparc" |
| 26 | |
| 27 | +config TARGET_ubicom32 |
| 28 | + bool "ubicom32" |
| 29 | + |
| 30 | config TARGET_v850 |
| 31 | bool "v850 (BROKEN)" |
| 32 | |
| 33 | @@ -203,6 +206,10 @@ if TARGET_sparc |
| 34 | source "extra/Configs/Config.sparc" |
| 35 | endif |
| 36 | |
| 37 | +if TARGET_ubicom32 |
| 38 | +source "extra/Configs/Config.ubicom32" |
| 39 | +endif |
| 40 | + |
| 41 | if TARGET_v850 |
| 42 | source "extra/Configs/Config.v850" |
| 43 | endif |
| 44 | --- a/extra/Configs/Config.in.arch |
| 45 | +++ b/extra/Configs/Config.in.arch |
| 46 | @@ -149,7 +149,7 @@ config UCLIBC_HAS_SOFT_FLOAT |
| 47 | config DO_C99_MATH |
| 48 | bool "Enable full C99 math library support" |
| 49 | depends on UCLIBC_HAS_FLOATS |
| 50 | - default n |
| 51 | + default y |
| 52 | help |
| 53 | If you want the uClibc math library to contain the full set C99 |
| 54 | math library features, then answer Y. If you leave this set to |
| 55 | --- /dev/null |
| 56 | +++ b/extra/Configs/Config.ubicom32 |
| 57 | @@ -0,0 +1,44 @@ |
| 58 | +# |
| 59 | +# For a description of the syntax of this configuration file, |
| 60 | +# see extra/config/Kconfig-language.txt |
| 61 | +# |
| 62 | + |
| 63 | +config TARGET_ARCH |
| 64 | + string |
| 65 | + default "ubicom32" |
| 66 | + |
| 67 | +config FORCE_OPTIONS_FOR_ARCH |
| 68 | + bool |
| 69 | + default y |
| 70 | + select ARCH_BIG_ENDIAN |
| 71 | + select ARCH_HAS_NO_MMU |
| 72 | + |
| 73 | +choice |
| 74 | + prompt "Target Processor Architecture" |
| 75 | + default CONFIG_UC_UBICOM32_V3 |
| 76 | + help |
| 77 | + This selects the instruction set architecture of your Ubicom32 CPU. This |
| 78 | + information is used for optimizing purposes. To build a library that |
| 79 | + will run on any Ubicom32 CPU, you can specify "v3" here. |
| 80 | + If you pick anything other than "v3," there is no |
| 81 | + guarantee that uClibc will even run on anything other than the |
| 82 | + selected processor type. |
| 83 | + |
| 84 | + You should probably select the Ubicom32 ISA that best matches the |
| 85 | + CPU you will be using on your device. uClibc will be tuned |
| 86 | + for that architecture. |
| 87 | + |
| 88 | + If you don't know what to do, choose "v3" |
| 89 | + |
| 90 | +config CONFIG_UC_UBICOM32_V3 |
| 91 | + bool "ISA v3" |
| 92 | + |
| 93 | +config CONFIG_UC_UBICOM32_V4 |
| 94 | + bool "ISA v4" |
| 95 | +endchoice |
| 96 | + |
| 97 | +config ARCH_CFLAGS |
| 98 | + string |
| 99 | + |
| 100 | +config CROSS |
| 101 | + string |
| 102 | --- a/include/elf.h |
| 103 | +++ b/include/elf.h |
| 104 | @@ -337,6 +337,8 @@ typedef struct |
| 105 | |
| 106 | #define EM_XSTORMY16 0xad45 |
| 107 | |
| 108 | +#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */ |
| 109 | + |
| 110 | /* FRV magic number - no EABI available??. */ |
| 111 | #define EM_CYGNUS_FRV 0x5441 |
| 112 | |
| 113 | @@ -3063,6 +3065,55 @@ typedef Elf32_Addr Elf32_Conflict; |
| 114 | /* Keep this the last entry. */ |
| 115 | #define R_XTENSA_NUM 50 |
| 116 | |
| 117 | +/* Ubicom32 ELF relocation types */ |
| 118 | +#define R_UBICOM32_NONE 0 |
| 119 | +#define R_UBICOM32_16 1 |
| 120 | +#define R_UBICOM32_32 2 |
| 121 | +#define R_UBICOM32_LO16 3 |
| 122 | +#define R_UBICOM32_HI16 4 |
| 123 | +#define R_UBICOM32_21_PCREL 5 |
| 124 | +#define R_UBICOM32_24_PCREL 6 |
| 125 | +#define R_UBICOM32_HI24 7 |
| 126 | +#define R_UBICOM32_LO7_S 8 |
| 127 | +#define R_UBICOM32_LO7_2_S 9 |
| 128 | +#define R_UBICOM32_LO7_4_S 10 |
| 129 | +#define R_UBICOM32_LO7_D 11 |
| 130 | +#define R_UBICOM32_LO7_2_D 12 |
| 131 | +#define R_UBICOM32_LO7_4_D 13 |
| 132 | +#define R_UBICOM32_32_HARVARD 14 |
| 133 | +#define R_UBICOM32_LO7_CALLI 15 |
| 134 | +#define R_UBICOM32_LO16_CALLI 16 |
| 135 | +#define R_UBICOM32_GOT_HI24 17 |
| 136 | +#define R_UBICOM32_GOT_LO7_S 18 |
| 137 | +#define R_UBICOM32_GOT_LO7_2_S 19 |
| 138 | +#define R_UBICOM32_GOT_LO7_4_S 20 |
| 139 | +#define R_UBICOM32_GOT_LO7_D 21 |
| 140 | +#define R_UBICOM32_GOT_LO7_2_D 22 |
| 141 | +#define R_UBICOM32_GOT_LO7_4_D 23 |
| 142 | +#define R_UBICOM32_FUNCDESC_GOT_HI24 24 |
| 143 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25 |
| 144 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26 |
| 145 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27 |
| 146 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28 |
| 147 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29 |
| 148 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30 |
| 149 | +#define R_UBICOM32_GOT_LO7_CALLI 31 |
| 150 | +#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32 |
| 151 | +#define R_UBICOM32_FUNCDESC_VALUE 33 |
| 152 | +#define R_UBICOM32_FUNCDESC 34 |
| 153 | +#define R_UBICOM32_GOTOFFSET_LO 35 |
| 154 | +#define R_UBICOM32_GOTOFFSET_HI 36 |
| 155 | +#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37 |
| 156 | +#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38 |
| 157 | +#define R_UBICOM32_GNU_VTINHERIT 200 |
| 158 | +#define R_UBICOM32_GNU_VTENTRY 201 |
| 159 | + |
| 160 | +/* Ubicom32 Flags. */ |
| 161 | +#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */ |
| 162 | +#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */ |
| 163 | +#define EF_UBICOM32_PIC 0x80000000 /* -fpic */ |
| 164 | +#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */ |
| 165 | + |
| 166 | #ifdef __cplusplus |
| 167 | } |
| 168 | #endif |
| 169 | --- a/include/features.h |
| 170 | +++ b/include/features.h |
| 171 | @@ -445,4 +445,10 @@ uClibc was built without large file supp |
| 172 | # include <libc-internal.h> |
| 173 | #endif |
| 174 | |
| 175 | +#ifndef libc_hidden_proto |
| 176 | +#define libc_hidden_proto(name, attrs...) |
| 177 | +#endif |
| 178 | +#ifndef libm_hidden_proto |
| 179 | +#define libm_hidden_proto(name, attrs...) |
| 180 | +#endif |
| 181 | #endif /* features.h */ |
| 182 | --- a/ldso/ldso/dl-startup.c |
| 183 | +++ b/ldso/ldso/dl-startup.c |
| 184 | @@ -164,10 +164,13 @@ DL_START(unsigned long args) |
| 185 | aux_dat += 2; |
| 186 | } |
| 187 | |
| 188 | +#if !defined __FDPIC__ |
| 189 | /* locate the ELF header. We need this done as soon as possible |
| 190 | * (esp since SEND_STDERR() needs this on some platforms... */ |
| 191 | if (!auxvt[AT_BASE].a_un.a_val) |
| 192 | auxvt[AT_BASE].a_un.a_val = elf_machine_load_address(); |
| 193 | +#endif |
| 194 | + |
| 195 | DL_INIT_LOADADDR_BOOT(load_addr, auxvt[AT_BASE].a_un.a_val); |
| 196 | header = (ElfW(Ehdr) *) auxvt[AT_BASE].a_un.a_val; |
| 197 | |
| 198 | --- a/ldso/ldso/ldso.c |
| 199 | +++ b/ldso/ldso/ldso.c |
| 200 | @@ -325,10 +325,12 @@ void _dl_get_ready_to_run(struct elf_res |
| 201 | _dl_progname = argv[0]; |
| 202 | } |
| 203 | |
| 204 | +#if 0 // blackfin does this, we do to avoid die during reloc |
| 205 | if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) { |
| 206 | _dl_dprintf(_dl_debug_file, "Standalone execution is not supported yet\n"); |
| 207 | _dl_exit(1); |
| 208 | } |
| 209 | +#endif |
| 210 | |
| 211 | /* Start to build the tables of the modules that are required for |
| 212 | * this beast to run. We start with the basic executable, and then |
| 213 | --- /dev/null |
| 214 | +++ b/ldso/ldso/ubicom32/dl-debug.h |
| 215 | @@ -0,0 +1,72 @@ |
| 216 | +/* vi: set sw=4 ts=4: */ |
| 217 | +/* Ubicom32 ELF shared library loader suppport |
| 218 | + * |
| 219 | + * Copyright (c) 2009 Ubicom Inc. |
| 220 | + * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald, |
| 221 | + * David Engel, Hongjiu Lu and Mitch D'Souza |
| 222 | + * Copyright (C) 2001-2004 Erik Andersen |
| 223 | + * |
| 224 | + * All rights reserved. |
| 225 | + * |
| 226 | + * Redistribution and use in source and binary forms, with or without |
| 227 | + * modification, are permitted provided that the following conditions |
| 228 | + * are met: |
| 229 | + * 1. Redistributions of source code must retain the above copyright |
| 230 | + * notice, this list of conditions and the following disclaimer. |
| 231 | + * 2. The name of the above contributors may not be |
| 232 | + * used to endorse or promote products derived from this software |
| 233 | + * without specific prior written permission. |
| 234 | + * |
| 235 | + * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND |
| 236 | + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 237 | + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 238 | + * ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE |
| 239 | + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 240 | + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 241 | + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 242 | + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 243 | + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 244 | + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 245 | + * SUCH DAMAGE. |
| 246 | + */ |
| 247 | + |
| 248 | +static const char *_dl_reltypes_tab[] = |
| 249 | +{ |
| 250 | + "R_UBICOM32_NONE", /* 0 */ |
| 251 | + "R_UBICOM32_16", |
| 252 | + "R_UBICOM32_32", |
| 253 | + "R_UBICOM32_LO16", |
| 254 | + "R_UBICOM32_HI16", |
| 255 | + "R_UBICOM32_21_PCREL", /* 5 */ |
| 256 | + "R_UBICOM32_24_PCREL", |
| 257 | + "R_UBICOM32_HI24", |
| 258 | + "R_UBICOM32_LO7_S", |
| 259 | + "R_UBICOM32_LO7_2_S", |
| 260 | + "R_UBICOM32_LO7_4_S", /* 10 */ |
| 261 | + "R_UBICOM32_LO7_D", |
| 262 | + "R_UBICOM32_LO7_2_D", |
| 263 | + "R_UBICOM32_LO7_4_D", |
| 264 | + "R_UBICOM32_32_HARVARD", |
| 265 | + "R_UBICOM32_LO7_CALLI", /* 15 */ |
| 266 | + "R_UBICOM32_LO16_CALLI", |
| 267 | + "R_UBICOM32_GOT_HI24", |
| 268 | + "R_UBICOM32_GOT_LO7_S", |
| 269 | + "R_UBICOM32_GOT_LO7_2_S" |
| 270 | + "R_UBICOM32_GOT_LO7_4_S", /* 20 */ |
| 271 | + "R_UBICOM32_GOT_LO7_D", |
| 272 | + "R_UBICOM32_GOT_LO7_2_D", |
| 273 | + "R_UBICOM32_GOT_LO7_4_D", |
| 274 | + "R_UBICOM32_FUNCDESC_GOT_HI24 24", |
| 275 | + "R_UBICOM32_FUNCDESC_GOT_LO7_S", /* 25 */ |
| 276 | + "R_UBICOM32_FUNCDESC_GOT_LO7_2_S", |
| 277 | + "R_UBICOM32_FUNCDESC_GOT_LO7_4_S", |
| 278 | + "R_UBICOM32_FUNCDESC_GOT_LO7_D", |
| 279 | + "R_UBICOM32_FUNCDESC_GOT_LO7_2_D", |
| 280 | + "R_UBICOM32_FUNCDESC_GOT_LO7_4_D", /* 30 */ |
| 281 | + "R_UBICOM32_GOT_LO7_CALLI", |
| 282 | + "R_UBICOM32_FUNCDESC_VALUE", |
| 283 | + "R_UBICOM32_FUNCDESC", |
| 284 | +#if 1 |
| 285 | + [200] "R_UBICOM32_GNU_VTINHERIT" , "R_UBICOM32_GNU_VTENTRY" |
| 286 | +#endif |
| 287 | +}; |
| 288 | --- /dev/null |
| 289 | +++ b/ldso/ldso/ubicom32/dl-inlines.h |
| 290 | @@ -0,0 +1,582 @@ |
| 291 | + /* Copyright (C) 2003, 2004 Red Hat, Inc. |
| 292 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 293 | + |
| 294 | +This file is part of uClibc. |
| 295 | + |
| 296 | +uClibc is free software; you can redistribute it and/or modify it |
| 297 | +under the terms of the GNU Lesser General Public License as |
| 298 | +published by the Free Software Foundation; either version 2.1 of the |
| 299 | +License, or (at your option) any later version. |
| 300 | + |
| 301 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 302 | +ANY WARRANTY; without even the implied warranty of |
| 303 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 304 | +Library General Public License for more details. |
| 305 | + |
| 306 | +You should have received a copy of the GNU Lesser General Public |
| 307 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 308 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 309 | +USA. */ |
| 310 | + |
| 311 | +//#include <bfin_sram.h> |
| 312 | +#define SRAM_TEST(x) 0 |
| 313 | +#ifndef _dl_assert |
| 314 | +# define _dl_assert(expr) |
| 315 | +#endif |
| 316 | + |
| 317 | +/* Initialize a DL_LOADADDR_TYPE given a got pointer and a complete |
| 318 | + load map. */ |
| 319 | +static __always_inline void |
| 320 | +__dl_init_loadaddr_map (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Addr dl_boot_got_pointer, |
| 321 | + struct elf32_fdpic_loadmap *map) |
| 322 | +{ |
| 323 | + if (map->version != 0) |
| 324 | + { |
| 325 | + SEND_EARLY_STDERR ("Invalid loadmap version number\n"); |
| 326 | + _dl_exit(-1); |
| 327 | + } |
| 328 | + if (map->nsegs == 0) |
| 329 | + { |
| 330 | + SEND_EARLY_STDERR ("Invalid segment count in loadmap\n"); |
| 331 | + _dl_exit(-1); |
| 332 | + } |
| 333 | + loadaddr->got_value = (void*)dl_boot_got_pointer; |
| 334 | + loadaddr->map = map; |
| 335 | +} |
| 336 | + |
| 337 | +/* Figure out how many LOAD segments there are in the given headers, |
| 338 | + and allocate a block for the load map big enough for them. |
| 339 | + got_value will be properly initialized later on, with INIT_GOT. */ |
| 340 | +static __always_inline int |
| 341 | +__dl_init_loadaddr (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Phdr *ppnt, |
| 342 | + int pcnt) |
| 343 | +{ |
| 344 | + int count = 0, i; |
| 345 | + size_t size; |
| 346 | + |
| 347 | + for (i = 0; i < pcnt; i++) |
| 348 | + if (ppnt[i].p_type == PT_LOAD) |
| 349 | + count++; |
| 350 | + |
| 351 | + loadaddr->got_value = 0; |
| 352 | + |
| 353 | + size = sizeof (struct elf32_fdpic_loadmap) |
| 354 | + + sizeof (struct elf32_fdpic_loadseg) * count; |
| 355 | + loadaddr->map = _dl_malloc (size); |
| 356 | + if (! loadaddr->map) |
| 357 | + _dl_exit (-1); |
| 358 | + |
| 359 | + loadaddr->map->version = 0; |
| 360 | + loadaddr->map->nsegs = 0; |
| 361 | + |
| 362 | + return count; |
| 363 | +} |
| 364 | + |
| 365 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 366 | +extern char *_dl_debug; |
| 367 | +extern int _dl_debug_file; |
| 368 | +#endif |
| 369 | + |
| 370 | +/* Incrementally initialize a load map. */ |
| 371 | +static __always_inline void |
| 372 | +__dl_init_loadaddr_hdr (struct elf32_fdpic_loadaddr loadaddr, void *addr, |
| 373 | + Elf32_Phdr *phdr, int maxsegs) |
| 374 | +{ |
| 375 | + struct elf32_fdpic_loadseg *segdata; |
| 376 | + |
| 377 | + if (loadaddr.map->nsegs == maxsegs) |
| 378 | + _dl_exit (-1); |
| 379 | + |
| 380 | + segdata = &loadaddr.map->segs[loadaddr.map->nsegs++]; |
| 381 | + segdata->addr = (Elf32_Addr) addr; |
| 382 | + segdata->p_vaddr = phdr->p_vaddr; |
| 383 | + segdata->p_memsz = phdr->p_memsz; |
| 384 | + |
| 385 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 386 | + { |
| 387 | + if (_dl_debug) |
| 388 | + _dl_dprintf(_dl_debug_file, "%i: mapped %x at %x, size %x\n", |
| 389 | + loadaddr.map->nsegs-1, |
| 390 | + segdata->p_vaddr, segdata->addr, segdata->p_memsz); |
| 391 | + } |
| 392 | +#endif |
| 393 | +} |
| 394 | + |
| 395 | +static __always_inline void __dl_loadaddr_unmap |
| 396 | +(struct elf32_fdpic_loadaddr loadaddr, struct funcdesc_ht *funcdesc_ht); |
| 397 | + |
| 398 | +/* Figure out whether the given address is in one of the mapped |
| 399 | + segments. */ |
| 400 | +static __always_inline int |
| 401 | +__dl_addr_in_loadaddr (void *p, struct elf32_fdpic_loadaddr loadaddr) |
| 402 | +{ |
| 403 | + struct elf32_fdpic_loadmap *map = loadaddr.map; |
| 404 | + int c; |
| 405 | + |
| 406 | + for (c = 0; c < map->nsegs; c++) |
| 407 | + if ((void*)map->segs[c].addr <= p |
| 408 | + && (char*)p < (char*)map->segs[c].addr + map->segs[c].p_memsz) |
| 409 | + return 1; |
| 410 | + |
| 411 | + return 0; |
| 412 | +} |
| 413 | + |
| 414 | +static __always_inline void * _dl_funcdesc_for (void *entry_point, void *got_value); |
| 415 | + |
| 416 | +/* The hashcode handling code below is heavily inspired in libiberty's |
| 417 | + hashtab code, but with most adaptation points and support for |
| 418 | + deleting elements removed. |
| 419 | + |
| 420 | + Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
| 421 | + Contributed by Vladimir Makarov (vmakarov@cygnus.com). */ |
| 422 | + |
| 423 | +static __always_inline unsigned long |
| 424 | +higher_prime_number (unsigned long n) |
| 425 | +{ |
| 426 | + /* These are primes that are near, but slightly smaller than, a |
| 427 | + power of two. */ |
| 428 | + static const unsigned long primes[] = { |
| 429 | + (unsigned long) 7, |
| 430 | + (unsigned long) 13, |
| 431 | + (unsigned long) 31, |
| 432 | + (unsigned long) 61, |
| 433 | + (unsigned long) 127, |
| 434 | + (unsigned long) 251, |
| 435 | + (unsigned long) 509, |
| 436 | + (unsigned long) 1021, |
| 437 | + (unsigned long) 2039, |
| 438 | + (unsigned long) 4093, |
| 439 | + (unsigned long) 8191, |
| 440 | + (unsigned long) 16381, |
| 441 | + (unsigned long) 32749, |
| 442 | + (unsigned long) 65521, |
| 443 | + (unsigned long) 131071, |
| 444 | + (unsigned long) 262139, |
| 445 | + (unsigned long) 524287, |
| 446 | + (unsigned long) 1048573, |
| 447 | + (unsigned long) 2097143, |
| 448 | + (unsigned long) 4194301, |
| 449 | + (unsigned long) 8388593, |
| 450 | + (unsigned long) 16777213, |
| 451 | + (unsigned long) 33554393, |
| 452 | + (unsigned long) 67108859, |
| 453 | + (unsigned long) 134217689, |
| 454 | + (unsigned long) 268435399, |
| 455 | + (unsigned long) 536870909, |
| 456 | + (unsigned long) 1073741789, |
| 457 | + (unsigned long) 2147483647, |
| 458 | + /* 4294967291L */ |
| 459 | + ((unsigned long) 2147483647) + ((unsigned long) 2147483644), |
| 460 | + }; |
| 461 | + |
| 462 | + const unsigned long *low = &primes[0]; |
| 463 | + const unsigned long *high = &primes[sizeof(primes) / sizeof(primes[0])]; |
| 464 | + |
| 465 | + while (low != high) |
| 466 | + { |
| 467 | + const unsigned long *mid = low + (high - low) / 2; |
| 468 | + if (n > *mid) |
| 469 | + low = mid + 1; |
| 470 | + else |
| 471 | + high = mid; |
| 472 | + } |
| 473 | + |
| 474 | +#if 0 |
| 475 | + /* If we've run out of primes, abort. */ |
| 476 | + if (n > *low) |
| 477 | + { |
| 478 | + fprintf (stderr, "Cannot find prime bigger than %lu\n", n); |
| 479 | + abort (); |
| 480 | + } |
| 481 | +#endif |
| 482 | + |
| 483 | + return *low; |
| 484 | +} |
| 485 | + |
| 486 | +struct funcdesc_ht |
| 487 | +{ |
| 488 | + /* Table itself. */ |
| 489 | + struct funcdesc_value **entries; |
| 490 | + |
| 491 | + /* Current size (in entries) of the hash table */ |
| 492 | + size_t size; |
| 493 | + |
| 494 | + /* Current number of elements. */ |
| 495 | + size_t n_elements; |
| 496 | +}; |
| 497 | + |
| 498 | +static __always_inline int |
| 499 | +hash_pointer (const void *p) |
| 500 | +{ |
| 501 | + return (int) ((long)p >> 3); |
| 502 | +} |
| 503 | + |
| 504 | +static __always_inline struct funcdesc_ht * |
| 505 | +htab_create (void) |
| 506 | +{ |
| 507 | + struct funcdesc_ht *ht = _dl_malloc (sizeof (struct funcdesc_ht)); |
| 508 | + |
| 509 | + if (! ht) |
| 510 | + return NULL; |
| 511 | + ht->size = 3; |
| 512 | + ht->entries = _dl_malloc (sizeof (struct funcdesc_ht_value *) * ht->size); |
| 513 | + if (! ht->entries) |
| 514 | + return NULL; |
| 515 | + |
| 516 | + ht->n_elements = 0; |
| 517 | + |
| 518 | + _dl_memset (ht->entries, 0, sizeof (struct funcdesc_ht_value *) * ht->size); |
| 519 | + |
| 520 | + return ht; |
| 521 | +} |
| 522 | + |
| 523 | +/* This is only called from _dl_loadaddr_unmap, so it's safe to call |
| 524 | + _dl_free(). See the discussion below. */ |
| 525 | +static __always_inline void |
| 526 | +htab_delete (struct funcdesc_ht *htab) |
| 527 | +{ |
| 528 | + int i; |
| 529 | + |
| 530 | + for (i = htab->size - 1; i >= 0; i--) |
| 531 | + if (htab->entries[i]) |
| 532 | + _dl_free (htab->entries[i]); |
| 533 | + |
| 534 | + _dl_free (htab->entries); |
| 535 | + _dl_free (htab); |
| 536 | +} |
| 537 | + |
| 538 | +/* Similar to htab_find_slot, but without several unwanted side effects: |
| 539 | + - Does not call htab->eq_f when it finds an existing entry. |
| 540 | + - Does not change the count of elements/searches/collisions in the |
| 541 | + hash table. |
| 542 | + This function also assumes there are no deleted entries in the table. |
| 543 | + HASH is the hash value for the element to be inserted. */ |
| 544 | + |
| 545 | +static __always_inline struct funcdesc_value ** |
| 546 | +find_empty_slot_for_expand (struct funcdesc_ht *htab, int hash) |
| 547 | +{ |
| 548 | + size_t size = htab->size; |
| 549 | + unsigned int index = hash % size; |
| 550 | + struct funcdesc_value **slot = htab->entries + index; |
| 551 | + int hash2; |
| 552 | + |
| 553 | + if (! *slot) |
| 554 | + return slot; |
| 555 | + |
| 556 | + hash2 = 1 + hash % (size - 2); |
| 557 | + for (;;) |
| 558 | + { |
| 559 | + index += hash2; |
| 560 | + if (index >= size) |
| 561 | + index -= size; |
| 562 | + |
| 563 | + slot = htab->entries + index; |
| 564 | + if (! *slot) |
| 565 | + return slot; |
| 566 | + } |
| 567 | +} |
| 568 | + |
| 569 | +/* The following function changes size of memory allocated for the |
| 570 | + entries and repeatedly inserts the table elements. The occupancy |
| 571 | + of the table after the call will be about 50%. Naturally the hash |
| 572 | + table must already exist. Remember also that the place of the |
| 573 | + table entries is changed. If memory allocation failures are allowed, |
| 574 | + this function will return zero, indicating that the table could not be |
| 575 | + expanded. If all goes well, it will return a non-zero value. */ |
| 576 | + |
| 577 | +static __always_inline int |
| 578 | +htab_expand (struct funcdesc_ht *htab) |
| 579 | +{ |
| 580 | + struct funcdesc_value **oentries; |
| 581 | + struct funcdesc_value **olimit; |
| 582 | + struct funcdesc_value **p; |
| 583 | + struct funcdesc_value **nentries; |
| 584 | + size_t nsize; |
| 585 | + |
| 586 | + oentries = htab->entries; |
| 587 | + olimit = oentries + htab->size; |
| 588 | + |
| 589 | + /* Resize only when table after removal of unused elements is either |
| 590 | + too full or too empty. */ |
| 591 | + if (htab->n_elements * 2 > htab->size) |
| 592 | + nsize = higher_prime_number (htab->n_elements * 2); |
| 593 | + else |
| 594 | + nsize = htab->size; |
| 595 | + |
| 596 | + nentries = _dl_malloc (sizeof (struct funcdesc_value *) * nsize); |
| 597 | + _dl_memset (nentries, 0, sizeof (struct funcdesc_value *) * nsize); |
| 598 | + if (nentries == NULL) |
| 599 | + return 0; |
| 600 | + htab->entries = nentries; |
| 601 | + htab->size = nsize; |
| 602 | + |
| 603 | + p = oentries; |
| 604 | + do |
| 605 | + { |
| 606 | + if (*p) |
| 607 | + *find_empty_slot_for_expand (htab, hash_pointer ((*p)->entry_point)) |
| 608 | + = *p; |
| 609 | + |
| 610 | + p++; |
| 611 | + } |
| 612 | + while (p < olimit); |
| 613 | + |
| 614 | +#if 0 /* We can't tell whether this was allocated by the _dl_malloc() |
| 615 | + built into ld.so or malloc() in the main executable or libc, |
| 616 | + and calling free() for something that wasn't malloc()ed could |
| 617 | + do Very Bad Things (TM). Take the conservative approach |
| 618 | + here, potentially wasting as much memory as actually used by |
| 619 | + the hash table, even if multiple growths occur. That's not |
| 620 | + so bad as to require some overengineered solution that would |
| 621 | + enable us to keep track of how it was allocated. */ |
| 622 | + _dl_free (oentries); |
| 623 | +#endif |
| 624 | + return 1; |
| 625 | +} |
| 626 | + |
| 627 | +/* This function searches for a hash table slot containing an entry |
| 628 | + equal to the given element. To delete an entry, call this with |
| 629 | + INSERT = 0, then call htab_clear_slot on the slot returned (possibly |
| 630 | + after doing some checks). To insert an entry, call this with |
| 631 | + INSERT = 1, then write the value you want into the returned slot. |
| 632 | + When inserting an entry, NULL may be returned if memory allocation |
| 633 | + fails. */ |
| 634 | + |
| 635 | +static __always_inline struct funcdesc_value ** |
| 636 | +htab_find_slot (struct funcdesc_ht *htab, void *ptr, int insert) |
| 637 | +{ |
| 638 | + unsigned int index; |
| 639 | + int hash, hash2; |
| 640 | + size_t size; |
| 641 | + struct funcdesc_value **entry; |
| 642 | + |
| 643 | + if (htab->size * 3 <= htab->n_elements * 4 |
| 644 | + && htab_expand (htab) == 0) |
| 645 | + return NULL; |
| 646 | + |
| 647 | + hash = hash_pointer (ptr); |
| 648 | + |
| 649 | + size = htab->size; |
| 650 | + index = hash % size; |
| 651 | + |
| 652 | + entry = &htab->entries[index]; |
| 653 | + if (!*entry) |
| 654 | + goto empty_entry; |
| 655 | + else if ((*entry)->entry_point == ptr) |
| 656 | + return entry; |
| 657 | + |
| 658 | + hash2 = 1 + hash % (size - 2); |
| 659 | + for (;;) |
| 660 | + { |
| 661 | + index += hash2; |
| 662 | + if (index >= size) |
| 663 | + index -= size; |
| 664 | + |
| 665 | + entry = &htab->entries[index]; |
| 666 | + if (!*entry) |
| 667 | + goto empty_entry; |
| 668 | + else if ((*entry)->entry_point == ptr) |
| 669 | + return entry; |
| 670 | + } |
| 671 | + |
| 672 | + empty_entry: |
| 673 | + if (!insert) |
| 674 | + return NULL; |
| 675 | + |
| 676 | + htab->n_elements++; |
| 677 | + return entry; |
| 678 | +} |
| 679 | + |
| 680 | +void * |
| 681 | +_dl_funcdesc_for (void *entry_point, void *got_value) |
| 682 | +{ |
| 683 | + struct elf_resolve *tpnt = ((void**)got_value)[2]; |
| 684 | + struct funcdesc_ht *ht = tpnt->funcdesc_ht; |
| 685 | + struct funcdesc_value **entry; |
| 686 | + |
| 687 | + _dl_assert (got_value == tpnt->loadaddr.got_value); |
| 688 | + |
| 689 | + if (! ht) |
| 690 | + { |
| 691 | + ht = htab_create (); |
| 692 | + if (! ht) |
| 693 | + return (void*)-1; |
| 694 | + tpnt->funcdesc_ht = ht; |
| 695 | + } |
| 696 | + |
| 697 | + entry = htab_find_slot (ht, entry_point, 1); |
| 698 | + if (*entry) |
| 699 | + { |
| 700 | + _dl_assert ((*entry)->entry_point == entry_point); |
| 701 | + return _dl_stabilize_funcdesc (*entry); |
| 702 | + } |
| 703 | + |
| 704 | + *entry = _dl_malloc (sizeof (struct funcdesc_value)); |
| 705 | + (*entry)->entry_point = entry_point; |
| 706 | + (*entry)->got_value = got_value; |
| 707 | + |
| 708 | + return _dl_stabilize_funcdesc (*entry); |
| 709 | +} |
| 710 | + |
| 711 | +static __always_inline void const * |
| 712 | +_dl_lookup_address (void const *address) |
| 713 | +{ |
| 714 | + struct elf_resolve *rpnt; |
| 715 | + struct funcdesc_value const *fd; |
| 716 | + |
| 717 | + /* Make sure we don't make assumptions about its alignment. */ |
| 718 | + __asm__ ("" : "+r" (address)); |
| 719 | + |
| 720 | + if ((Elf32_Addr)address & 7) |
| 721 | + /* It's not a function descriptor. */ |
| 722 | + return address; |
| 723 | + |
| 724 | + fd = (struct funcdesc_value const *)address; |
| 725 | + |
| 726 | + for (rpnt = _dl_loaded_modules; rpnt; rpnt = rpnt->next) |
| 727 | + { |
| 728 | + if (! rpnt->funcdesc_ht) |
| 729 | + continue; |
| 730 | + |
| 731 | + if (fd->got_value != rpnt->loadaddr.got_value) |
| 732 | + continue; |
| 733 | + |
| 734 | + address = htab_find_slot (rpnt->funcdesc_ht, (void*)fd->entry_point, 0); |
| 735 | + |
| 736 | + if (address && *(struct funcdesc_value *const*)address == fd) |
| 737 | + { |
| 738 | + address = (*(struct funcdesc_value *const*)address)->entry_point; |
| 739 | + break; |
| 740 | + } |
| 741 | + else |
| 742 | + address = fd; |
| 743 | + } |
| 744 | + |
| 745 | + return address; |
| 746 | +} |
| 747 | + |
| 748 | +void |
| 749 | +__dl_loadaddr_unmap (struct elf32_fdpic_loadaddr loadaddr, |
| 750 | + struct funcdesc_ht *funcdesc_ht) |
| 751 | +{ |
| 752 | + int i; |
| 753 | + |
| 754 | + for (i = 0; i < loadaddr.map->nsegs; i++) |
| 755 | + { |
| 756 | + struct elf32_fdpic_loadseg *segdata; |
| 757 | + ssize_t offs; |
| 758 | + segdata = loadaddr.map->segs + i; |
| 759 | + |
| 760 | +#if 0 /* SRAM */ |
| 761 | + /* FIXME: |
| 762 | + A more cleaner way is to add type for struct elf32_fdpic_loadseg, |
| 763 | + and release the memory according to the type. |
| 764 | + Currently, we hardcode the memory address of L1 SRAM. */ |
| 765 | + if ((segdata->addr & 0xff800000) == 0xff800000) |
| 766 | + { |
| 767 | + _dl_sram_free ((void *)segdata->addr); |
| 768 | + continue; |
| 769 | + } |
| 770 | +#endif |
| 771 | + offs = (segdata->p_vaddr & ADDR_ALIGN); |
| 772 | + _dl_munmap ((void*)segdata->addr - offs, |
| 773 | + segdata->p_memsz + offs); |
| 774 | + } |
| 775 | + /* _dl_unmap is only called for dlopen()ed libraries, for which |
| 776 | + calling free() is safe, or before we've completed the initial |
| 777 | + relocation, in which case calling free() is probably pointless, |
| 778 | + but still safe. */ |
| 779 | + _dl_free (loadaddr.map); |
| 780 | + if (funcdesc_ht) |
| 781 | + htab_delete (funcdesc_ht); |
| 782 | +} |
| 783 | + |
| 784 | +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM |
| 785 | + * code/data */ |
| 786 | +// OLD BLACKFIN CODE |
| 787 | +static __always_inline int |
| 788 | +__dl_is_special_segment (Elf32_Ehdr *epnt, |
| 789 | + Elf32_Phdr *ppnt) |
| 790 | +{ |
| 791 | + if (ppnt->p_type != PT_LOAD) |
| 792 | + return 0; |
| 793 | + |
| 794 | + if ((epnt->e_flags & EF_BFIN_CODE_IN_L1) |
| 795 | + && !(ppnt->p_flags & PF_W) |
| 796 | + && (ppnt->p_flags & PF_X)) |
| 797 | + return 1; |
| 798 | + |
| 799 | + if ((epnt->e_flags & EF_BFIN_DATA_IN_L1) |
| 800 | + && (ppnt->p_flags & PF_W) |
| 801 | + && !(ppnt->p_flags & PF_X)) |
| 802 | + return 1; |
| 803 | + |
| 804 | + /* 0xff700000, 0xff800000, 0xff900000 and 0xffa00000 are also used in |
| 805 | + GNU ld and linux kernel. They need to be keep synchronized. */ |
| 806 | + if (ppnt->p_vaddr == 0xff700000 |
| 807 | + || ppnt->p_vaddr == 0xff800000 |
| 808 | + || ppnt->p_vaddr == 0xff900000 |
| 809 | + || ppnt->p_vaddr == 0xffa00000) |
| 810 | + return 1; |
| 811 | + |
| 812 | + return 0; |
| 813 | +} |
| 814 | + |
| 815 | +static __always_inline char * |
| 816 | +__dl_map_segment (Elf32_Ehdr *epnt, |
| 817 | + Elf32_Phdr *ppnt, |
| 818 | + int infile, |
| 819 | + int flags) |
| 820 | +{ |
| 821 | + char *status, *tryaddr, *l1addr; |
| 822 | + size_t size; |
| 823 | + |
| 824 | + |
| 825 | + if (((epnt->e_flags & EF_BFIN_CODE_IN_L1) || ppnt->p_vaddr == 0xffa00000) |
| 826 | + && !(ppnt->p_flags & PF_W) |
| 827 | + && (ppnt->p_flags & PF_X)) { |
| 828 | + status = (char *) _dl_mmap |
| 829 | + (tryaddr = 0, |
| 830 | + size = (ppnt->p_vaddr & ADDR_ALIGN) + ppnt->p_filesz, |
| 831 | + LXFLAGS(ppnt->p_flags), |
| 832 | + flags | MAP_EXECUTABLE | MAP_DENYWRITE, |
| 833 | + infile, ppnt->p_offset & OFFS_ALIGN); |
| 834 | + if (_dl_mmap_check_error(status) |
| 835 | + || (tryaddr && tryaddr != status)) |
| 836 | + return NULL; |
| 837 | + l1addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM); |
| 838 | + if (l1addr != NULL) |
| 839 | + _dl_dma_memcpy (l1addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz); |
| 840 | + _dl_munmap (status, size); |
| 841 | + if (l1addr == NULL) |
| 842 | + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__); |
| 843 | + return l1addr; |
| 844 | + } |
| 845 | + |
| 846 | + if (((epnt->e_flags & EF_BFIN_DATA_IN_L1) |
| 847 | + || ppnt->p_vaddr == 0xff700000 |
| 848 | + || ppnt->p_vaddr == 0xff800000 |
| 849 | + || ppnt->p_vaddr == 0xff900000) |
| 850 | + && (ppnt->p_flags & PF_W) |
| 851 | + && !(ppnt->p_flags & PF_X)) { |
| 852 | + if (ppnt->p_vaddr == 0xff800000) |
| 853 | + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM); |
| 854 | + else if (ppnt->p_vaddr == 0xff900000) |
| 855 | + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM); |
| 856 | + else |
| 857 | + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM); |
| 858 | + if (l1addr == NULL) { |
| 859 | + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__); |
| 860 | + } else { |
| 861 | + if (_DL_PREAD (infile, l1addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) { |
| 862 | + _dl_sram_free (l1addr); |
| 863 | + return NULL; |
| 864 | + } |
| 865 | + if (ppnt->p_filesz < ppnt->p_memsz) |
| 866 | + _dl_memset (l1addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz); |
| 867 | + } |
| 868 | + return l1addr; |
| 869 | + } |
| 870 | + return 0; |
| 871 | +} |
| 872 | +#endif |
| 873 | --- /dev/null |
| 874 | +++ b/ldso/ldso/ubicom32/dl-startup.h |
| 875 | @@ -0,0 +1,232 @@ |
| 876 | +/* |
| 877 | + Copyright (C) 2009 Ubicom, Inc. |
| 878 | + Copyright (C) 2003 Red Hat, Inc. |
| 879 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 880 | + |
| 881 | +This file is part of uClibc. |
| 882 | + |
| 883 | +uClibc is free software; you can redistribute it and/or modify it |
| 884 | +under the terms of the GNU Lesser General Public License as |
| 885 | +published by the Free Software Foundation; either version 2.1 of the |
| 886 | +License, or (at your option) any later version. |
| 887 | + |
| 888 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 889 | +ANY WARRANTY; without even the implied warranty of |
| 890 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 891 | +Library General Public License for more details. |
| 892 | + |
| 893 | +You should have received a copy of the GNU Lesser General Public |
| 894 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 895 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 896 | +USA. */ |
| 897 | + |
| 898 | +/* Any assembly language/system dependent hacks needed to setup |
| 899 | + * boot1.c so it will work as expected and cope with whatever platform |
| 900 | + * specific wierdness is needed for this architecture. |
| 901 | + |
| 902 | + * We override the default _dl_boot function, and replace it with a |
| 903 | + * bit of asm. Then call the real _dl_boot function, which is now |
| 904 | + * named _dl_boot2. */ |
| 905 | + |
| 906 | +/* At program start-up, p0 contains a pointer to a |
| 907 | + elf32_fdpic_loadmap that describes how the executable was loaded |
| 908 | + into memory. p1 contains a pointer to the interpreter (our!) |
| 909 | + loadmap, if there is an interpreter, or 0 if we're being run as an |
| 910 | + executable. p2 holds a pointer to the interpreter's dynamic |
| 911 | + section, if there is an interpreter, or to the executable's dynamic |
| 912 | + section, otherwise. If the executable is not dynamic, gr18 is 0. |
| 913 | + |
| 914 | + We rely on the fact that the linker adds a pointer to the |
| 915 | + _GLOBAL_OFFSET_TABLE_ as the last ROFIXUP entry, and that |
| 916 | + __self_reloc returns the relocated pointer to us, so that we can |
| 917 | + use this value to initialize the PIC register. */ |
| 918 | + |
| 919 | + |
| 920 | +/* |
| 921 | + * _dl_boot is the entry point for ldso. |
| 922 | + * |
| 923 | + * The kernel leaves the main apps args on the stack (positive offsets), and |
| 924 | + * communicates the load maps as follows |
| 925 | + * |
| 926 | + * - d1 is set to the exec_map_addr (struct elf32_fdpic_loadmap *), which is the |
| 927 | + * current state of the mapped application. |
| 928 | + * |
| 929 | + * - d2 is set to interp_map_addr (struct elf32_fdpic_loadmap *), which is use |
| 930 | + * by ldso to relocate itself. |
| 931 | + * |
| 932 | + * - d3 is dynamic_addr which as far as I can tell is the stack pointer. |
| 933 | + * |
| 934 | + * - a1 is set to zero and will later be initialised to ldso _dl_fini funcdesc |
| 935 | + */ |
| 936 | + |
| 937 | +__asm__( |
| 938 | + " .text \n\t" |
| 939 | + " .global _start \n\t" |
| 940 | + " .type _start,@function \n\t" |
| 941 | + "_start:\n\t" |
| 942 | + /* |
| 943 | + * Jump to .Lcall storing the location .Lcall in a5 |
| 944 | + */ |
| 945 | + " call a5, .Lcall \n\t" |
| 946 | + ".Lcall: \n\t" |
| 947 | + /* |
| 948 | + * Reserve and Push inputs to stack. |
| 949 | + * 32 byte stack layout as follows |
| 950 | + * offset 0 exec_map_addr |
| 951 | + * 4 interp_map_addr |
| 952 | + * 8 dynamic_addr |
| 953 | + * 12 not used |
| 954 | + * 16 dl_main_funcdesc structure for _dl_boot |
| 955 | + * (12 bytes sizeof funcdesc_value) |
| 956 | + * 28 reserved |
| 957 | + * 32 start of &original stack |
| 958 | + */ |
| 959 | + " pdec sp, 32(sp); reserve stack space \n\t" |
| 960 | + " move.4 0(sp), d1 ; exec_map_addr \n\t" |
| 961 | + " move.4 4(sp), d2 ; interp_map_addr \n\t" |
| 962 | + " move.4 8(sp), d3; dynamic_addr \n\t" |
| 963 | + |
| 964 | + /* |
| 965 | + * Load linker version of .Lcall in to d0 |
| 966 | + */ |
| 967 | + " moveai a3, #%hi(.Lcall) \n\t" |
| 968 | + " lea.1 d0, %lo(.Lcall)(a3) \n\t" |
| 969 | + |
| 970 | + /* |
| 971 | + * Determine the offset from loaded .Lcall and put it in d0. |
| 972 | + */ |
| 973 | + " sub.4 d0, a5, d0 \n\t" |
| 974 | + |
| 975 | + /* |
| 976 | + * Load linker version of __ROFIXUP_LIST__ and __ROFIXUP_END__ in to d1 |
| 977 | + * and d2. |
| 978 | + */ |
| 979 | + " moveai a3, #%hi(__ROFIXUP_LIST__) \n\t" |
| 980 | + " lea.1 d1, %lo(__ROFIXUP_LIST__)(a3) \n\t" |
| 981 | + " moveai a3, #%hi(__ROFIXUP_END__) \n\t" |
| 982 | + " lea.1 d2, %lo(__ROFIXUP_END__)(a3) \n\t" |
| 983 | + /* |
| 984 | + * Use offset determined above to find the loaded versions. |
| 985 | + */ |
| 986 | + " add.4 d1, d1, d0 \n\t" |
| 987 | + " add.4 d2, d2, d0 \n\t" |
| 988 | + |
| 989 | + /* |
| 990 | + * Load interp_map_addr into d0, if interp_map_addr is null use |
| 991 | + * exec_map_addr. |
| 992 | + */ |
| 993 | + " move.4 d0, 4(sp) ; load interp_map_addr \n\t" |
| 994 | + " cmpi d0, #0 \n\t" |
| 995 | + " jmpne.f 1f \n\t" |
| 996 | + " move.4 d0, 0(sp) ; load exec_map_addr \n\t" |
| 997 | + |
| 998 | + /* |
| 999 | + * call __self_reloc(map, void ***p, void ***e) |
| 1000 | + * it returns the the GOT in d0. |
| 1001 | + */ |
| 1002 | + "1: call a5, __self_reloc ; returns a0 in d0 \n\t" |
| 1003 | + " move.4 a0, d0 ; set GOT \n\t" |
| 1004 | + " move.4 a2, d0 ; save GOT \n\t" |
| 1005 | + |
| 1006 | + /* |
| 1007 | + * now setup to call |
| 1008 | + * _dl_start (Elf32_Addr dl_boot_got_pointer, (d0) |
| 1009 | + * struct elf32_fdpic_loadmap *dl_boot_progmap, (d1) |
| 1010 | + * struct elf32_fdpic_loadmap *dl_boot_ldsomap, (d2) |
| 1011 | + * Elf32_Dyn *dl_boot_ldso_dyn_pointer, (d3) |
| 1012 | + * struct funcdesc_value *dl_main_funcdesc, (d4) |
| 1013 | + * unsigned long args (d5) |
| 1014 | + * |
| 1015 | + * NOTE: for dl_main_funcdesc we reserved space on the stack for this |
| 1016 | + * structure. |
| 1017 | + */ |
| 1018 | + " move.4 d1, 0(sp) ; d1 = exec_map_addr \n\t" |
| 1019 | + " move.4 d2, 4(sp) ; d2 = interp_map_addr \n\t" |
| 1020 | + " move.4 d3, 8(sp) ; d3 = dynamic_addr \n\t" |
| 1021 | + " lea.1 d4, 16(sp) ; d4 = &dl_main_funcdesc \n\t" |
| 1022 | + " lea.1 d5, 32(sp) ; d5 = original stack ptr (args)\n\t" |
| 1023 | + " call a5, _dl_start \n\t" |
| 1024 | + |
| 1025 | + /* |
| 1026 | + * Setup to call the main entry point, starting with passing our FINI |
| 1027 | + * ptr() to the user in a1 (remember we saved the got in a2) |
| 1028 | + */ |
| 1029 | + " movei d15, #%got_funcdesc_lo(_dl_fini) \n\t" |
| 1030 | + " move.4 a1, (a2, d15) \n\t" |
| 1031 | + |
| 1032 | + /* |
| 1033 | + * restore the load map from the kernel. |
| 1034 | + */ |
| 1035 | + " move.4 d1, 0(sp) ; restore exec_map_addr \n\t" |
| 1036 | + " move.4 d2, 4(sp) ; restore interp_map_addr \n\t" |
| 1037 | + " move.4 d3, 8(sp) ; restore dynamic_addr \n\t" |
| 1038 | + |
| 1039 | + /* |
| 1040 | + * _dl_start returned the main apps entry point in dl_main_funcdesc, |
| 1041 | + * load that information now. |
| 1042 | + */ |
| 1043 | + " move.4 a5, 16(sp) ; a5 = dl_main_funcdesc.entry_point \n\t" |
| 1044 | + " move.4 a0, 20(sp) ; a0 = dl_main_funcdesc.got_value \n\t" |
| 1045 | + " lea.1 sp, 32(sp); restore original stack ptr (args) \n\t" |
| 1046 | + " calli a5, 0(a5) \n\t" |
| 1047 | + " bkpt -1; should never get here \n\t" |
| 1048 | + " .size _start, . - _start \n\t" |
| 1049 | +); |
| 1050 | + |
| 1051 | +#undef DL_START |
| 1052 | +#define DL_START(X) \ |
| 1053 | +static void __attribute__ ((used)) \ |
| 1054 | +_dl_start (Elf32_Addr dl_boot_got_pointer, \ |
| 1055 | + struct elf32_fdpic_loadmap *dl_boot_progmap, \ |
| 1056 | + struct elf32_fdpic_loadmap *dl_boot_ldsomap, \ |
| 1057 | + Elf32_Dyn *dl_boot_ldso_dyn_pointer, \ |
| 1058 | + struct funcdesc_value *dl_main_funcdesc, \ |
| 1059 | + X) |
| 1060 | + |
| 1061 | +struct elf32_fdpic_loadmap; |
| 1062 | + |
| 1063 | +/* |
| 1064 | + * Get a pointer to the argv array. On many platforms this can be just |
| 1065 | + * the address if the first argument, on other platforms we need to |
| 1066 | + * do something a little more subtle here. |
| 1067 | + */ |
| 1068 | +#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS) + 1) |
| 1069 | + |
| 1070 | +/* |
| 1071 | + * Here is a macro to perform a relocation. This is only used when |
| 1072 | + * bootstrapping the dynamic loader. RELP is the relocation that we |
| 1073 | + * are performing, REL is the pointer to the address we are relocating. |
| 1074 | + * SYMBOL is the symbol involved in the relocation, and LOAD is the |
| 1075 | + * load address. |
| 1076 | + */ |
| 1077 | +#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \ |
| 1078 | + switch(ELF32_R_TYPE((RELP)->r_info)){ \ |
| 1079 | + case R_UBICOM32_32: \ |
| 1080 | + *(REL) += (SYMBOL); \ |
| 1081 | + break; \ |
| 1082 | + case R_UBICOM32_FUNCDESC_VALUE: \ |
| 1083 | + { \ |
| 1084 | + struct funcdesc_value fv = { \ |
| 1085 | + (void*)((SYMBOL) + *(REL)), \ |
| 1086 | + (LOAD).got_value \ |
| 1087 | + }; \ |
| 1088 | + *(struct funcdesc_value volatile *)(REL) = fv; \ |
| 1089 | + break; \ |
| 1090 | + } \ |
| 1091 | + default: \ |
| 1092 | + _dl_exit(1); \ |
| 1093 | + } |
| 1094 | + |
| 1095 | +/* |
| 1096 | + * Transfer control to the user's application, once the dynamic loader |
| 1097 | + * is done. We return the address of the function's entry point to |
| 1098 | + * _dl_boot, see boot1_arch.h. |
| 1099 | + */ |
| 1100 | +#define START() do { \ |
| 1101 | + struct elf_resolve *exec_mod = _dl_loaded_modules; \ |
| 1102 | + dl_main_funcdesc->entry_point = _dl_elf_main; \ |
| 1103 | + while (exec_mod->libtype != elf_executable) \ |
| 1104 | + exec_mod = exec_mod->next; \ |
| 1105 | + dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \ |
| 1106 | + return; \ |
| 1107 | +} while (0) |
| 1108 | --- /dev/null |
| 1109 | +++ b/ldso/ldso/ubicom32/dl-syscalls.h |
| 1110 | @@ -0,0 +1,206 @@ |
| 1111 | +/* Copyright (C) 2003, 2004 Red Hat, Inc. |
| 1112 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 1113 | + |
| 1114 | +This file is part of uClibc. |
| 1115 | + |
| 1116 | +uClibc is free software; you can redistribute it and/or modify it |
| 1117 | +under the terms of the GNU Lesser General Public License as |
| 1118 | +published by the Free Software Foundation; either version 2.1 of the |
| 1119 | +License, or (at your option) any later version. |
| 1120 | + |
| 1121 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 1122 | +ANY WARRANTY; without even the implied warranty of |
| 1123 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 1124 | +Library General Public License for more details. |
| 1125 | + |
| 1126 | +You should have received a copy of the GNU Lesser General Public |
| 1127 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 1128 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 1129 | +USA. */ |
| 1130 | + |
| 1131 | +/* We can't use the real errno in ldso, since it has not yet |
| 1132 | + * been dynamicly linked in yet. */ |
| 1133 | +#include "sys/syscall.h" |
| 1134 | +extern int _dl_errno; |
| 1135 | +#undef __set_errno |
| 1136 | +#define __set_errno(X) {(_dl_errno) = (X);} |
| 1137 | +#include <sys/mman.h> |
| 1138 | + |
| 1139 | +/* The code below is extracted from libc/sysdeps/linux/frv/_mmap.c */ |
| 1140 | + |
| 1141 | +#if defined(DYNAMIC_LOADER_IN_SIMULATOR) && DYNAMIC_LOADER_IN_SIMULATOR |
| 1142 | +#define __NR___syscall_mmap2 __NR_mmap2 |
| 1143 | +static __inline__ _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr, |
| 1144 | + size_t, len, int, prot, int, flags, int, fd, off_t, offset); |
| 1145 | + |
| 1146 | +/* Make sure we don't get another definition of _dl_mmap from the |
| 1147 | + machine-independent code. */ |
| 1148 | +#undef __NR_mmap |
| 1149 | +#undef __NR_mmap2 |
| 1150 | + |
| 1151 | +/* This is always 12, even on architectures where PAGE_SHIFT != 12. */ |
| 1152 | +# ifndef MMAP2_PAGE_SHIFT |
| 1153 | +# define MMAP2_PAGE_SHIFT 12 |
| 1154 | +# endif |
| 1155 | + |
| 1156 | +#include <bits/uClibc_page.h> /* for PAGE_SIZE */ |
| 1157 | +static __always_inline void *_dl_memset(void*,int,size_t); |
| 1158 | +static __always_inline ssize_t _dl_pread(int fd, void *buf, size_t count, off_t offset); |
| 1159 | + |
| 1160 | +static __ptr_t |
| 1161 | +_dl_mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset) |
| 1162 | +{ |
| 1163 | + size_t plen = (len + PAGE_SIZE - 1) & -PAGE_SIZE; |
| 1164 | + |
| 1165 | +/* This is a hack to enable the dynamic loader to run within a |
| 1166 | + simulator that doesn't support mmap, with a number of very ugly |
| 1167 | + tricks. Also, it's not as useful as it sounds, since only dynamic |
| 1168 | + executables without DT_NEEDED dependencies can be run. AFAIK, they |
| 1169 | + can only be created with -pie. This trick suffices to enable the |
| 1170 | + dynamic loader to obtain a blank page that it maps early in the |
| 1171 | + bootstrap. */ |
| 1172 | + if ((flags & MAP_FIXED) == 0) |
| 1173 | + { |
| 1174 | + void *_dl_mmap_base = 0; |
| 1175 | + __ptr_t *ret = 0; |
| 1176 | + |
| 1177 | + if (! _dl_mmap_base) |
| 1178 | + { |
| 1179 | + void *stack; |
| 1180 | + __asm__ ("mov sp, %0" : "=r" (stack)); |
| 1181 | + _dl_mmap_base = (void *)(((long)stack + 2 * PAGE_SIZE) & -PAGE_SIZE); |
| 1182 | + retry: |
| 1183 | + if (((void **)_dl_mmap_base)[0] == _dl_mmap_base |
| 1184 | + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base |
| 1185 | + && (((void **)_dl_mmap_base)[177] |
| 1186 | + == ((void **)_dl_mmap_base)[771])) |
| 1187 | + { |
| 1188 | + while (((void**)_dl_mmap_base)[177]) |
| 1189 | + { |
| 1190 | + _dl_mmap_base = ((void**)_dl_mmap_base)[177]; |
| 1191 | + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base |
| 1192 | + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base |
| 1193 | + && (((void **)_dl_mmap_base)[177] |
| 1194 | + == ((void**)_dl_mmap_base)[771]))) |
| 1195 | + ((void(*)())0)(); |
| 1196 | + } |
| 1197 | + } |
| 1198 | + else |
| 1199 | + { |
| 1200 | + int i; |
| 1201 | + for (i = 0; i < (int)PAGE_SIZE; i++) |
| 1202 | + if (*(char*)(_dl_mmap_base + i)) |
| 1203 | + break; |
| 1204 | + if (i != PAGE_SIZE) |
| 1205 | + { |
| 1206 | + _dl_mmap_base = (void*)((long)_dl_mmap_base + PAGE_SIZE); |
| 1207 | + goto retry; |
| 1208 | + } |
| 1209 | + ((void**)_dl_mmap_base)[-1] = |
| 1210 | + ((void**)_dl_mmap_base)[0] = |
| 1211 | + ((void**)_dl_mmap_base)[1023] = |
| 1212 | + _dl_mmap_base; |
| 1213 | + } |
| 1214 | + } |
| 1215 | + |
| 1216 | + if (_dl_mmap_base) |
| 1217 | + { |
| 1218 | + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base |
| 1219 | + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base |
| 1220 | + && (((void **)_dl_mmap_base)[177] |
| 1221 | + == ((void**)_dl_mmap_base)[771]))) |
| 1222 | + ((void(*)())0)(); |
| 1223 | + ret = (__ptr_t)((char*)_dl_mmap_base + PAGE_SIZE); |
| 1224 | + _dl_mmap_base = |
| 1225 | + ((void**)_dl_mmap_base)[177] = |
| 1226 | + ((void**)_dl_mmap_base)[771] = |
| 1227 | + (char*)_dl_mmap_base + plen + PAGE_SIZE; |
| 1228 | + ((void**)_dl_mmap_base)[0] = |
| 1229 | + ((void**)_dl_mmap_base)[1023] = |
| 1230 | + _dl_mmap_base; |
| 1231 | + } |
| 1232 | + |
| 1233 | + if ((flags & MAP_ANONYMOUS) != 0) |
| 1234 | + { |
| 1235 | + _dl_memset (ret, 0, plen); |
| 1236 | + return ret; |
| 1237 | + } |
| 1238 | + |
| 1239 | + flags |= MAP_FIXED; |
| 1240 | + addr = ret; |
| 1241 | + } |
| 1242 | + if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) { |
| 1243 | +#if 0 |
| 1244 | + __set_errno (EINVAL); |
| 1245 | +#endif |
| 1246 | + return MAP_FAILED; |
| 1247 | + } |
| 1248 | + if ((flags & MAP_FIXED) != 0) |
| 1249 | + { |
| 1250 | + if (_dl_pread(fd, addr, len, offset) != (ssize_t)len) |
| 1251 | + return (void*)MAP_FAILED; |
| 1252 | + if (plen != len) |
| 1253 | + _dl_memset (addr + len, 0, plen - len); |
| 1254 | + return addr; |
| 1255 | + } |
| 1256 | + return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT))); |
| 1257 | +} |
| 1258 | +#endif |
| 1259 | + |
| 1260 | +#ifdef __NR_pread64 |
| 1261 | +#ifdef DYNAMIC_LOADER_IN_SIMULATOR |
| 1262 | +#include <unistd.h> |
| 1263 | + |
| 1264 | +#define __NR___syscall_lseek __NR_lseek |
| 1265 | +static __always_inline unsigned long _dl_read(int fd, const void *buf, unsigned long count); |
| 1266 | + |
| 1267 | +static __always_inline _syscall3(__off_t, __syscall_lseek, int, fd, __off_t, offset, |
| 1268 | + int, whence); |
| 1269 | +static __always_inline ssize_t |
| 1270 | +_dl_pread(int fd, void *buf, size_t count, off_t offset) |
| 1271 | +{ |
| 1272 | + __off_t orig = __syscall_lseek (fd, 0, SEEK_CUR); |
| 1273 | + ssize_t ret; |
| 1274 | + |
| 1275 | + if (orig == -1) |
| 1276 | + return -1; |
| 1277 | + |
| 1278 | + if (__syscall_lseek (fd, offset, SEEK_SET) != offset) |
| 1279 | + return -1; |
| 1280 | + |
| 1281 | + ret = _dl_read (fd, buf, count); |
| 1282 | + |
| 1283 | + if (__syscall_lseek (fd, orig, SEEK_SET) != orig) |
| 1284 | + ((void(*)())0)(); |
| 1285 | + |
| 1286 | + return ret; |
| 1287 | +} |
| 1288 | +#else |
| 1289 | +#define __NR___syscall_pread __NR_pread64 |
| 1290 | +static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf, |
| 1291 | + size_t, count, off_t, offset_hi, off_t, offset_lo); |
| 1292 | + |
| 1293 | +static __always_inline ssize_t |
| 1294 | +_dl_pread(int fd, void *buf, size_t count, off_t offset) |
| 1295 | +{ |
| 1296 | + return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset))); |
| 1297 | +} |
| 1298 | +#endif |
| 1299 | +#endif |
| 1300 | + |
| 1301 | +#ifdef __NR_sram_alloc |
| 1302 | +#define __NR__dl_sram_alloc __NR_sram_alloc |
| 1303 | +static __always_inline _syscall2(__ptr_t, _dl_sram_alloc, |
| 1304 | + size_t, len, unsigned long, flags); |
| 1305 | +#endif |
| 1306 | + |
| 1307 | +#ifdef __NR_sram_free |
| 1308 | +#define __NR__dl_sram_free __NR_sram_free |
| 1309 | +static __always_inline _syscall1(int, _dl_sram_free, __ptr_t, addr); |
| 1310 | +#endif |
| 1311 | + |
| 1312 | +#ifdef __NR_dma_memcpy |
| 1313 | +#define __NR__dl_dma_memcpy __NR_dma_memcpy |
| 1314 | +static __always_inline _syscall3(__ptr_t, _dl_dma_memcpy, |
| 1315 | + __ptr_t, dest, __ptr_t, src, size_t, len); |
| 1316 | +#endif |
| 1317 | --- /dev/null |
| 1318 | +++ b/ldso/ldso/ubicom32/dl-sysdep.h |
| 1319 | @@ -0,0 +1,243 @@ |
| 1320 | + /* Copyright (C) 2003, 2004 Red Hat, Inc. |
| 1321 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 1322 | + Based on ../i386/dl-sysdep.h |
| 1323 | + |
| 1324 | +This file is part of uClibc. |
| 1325 | + |
| 1326 | +uClibc is free software; you can redistribute it and/or modify it |
| 1327 | +under the terms of the GNU Lesser General Public License as |
| 1328 | +published by the Free Software Foundation; either version 2.1 of the |
| 1329 | +License, or (at your option) any later version. |
| 1330 | + |
| 1331 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 1332 | +ANY WARRANTY; without even the implied warranty of |
| 1333 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 1334 | +Library General Public License for more details. |
| 1335 | + |
| 1336 | +You should have received a copy of the GNU Lesser General Public |
| 1337 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 1338 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 1339 | +USA. */ |
| 1340 | + |
| 1341 | +/* |
| 1342 | + * Various assembly language/system dependent hacks that are required |
| 1343 | + * so that we can minimize the amount of platform specific code. |
| 1344 | + */ |
| 1345 | + |
| 1346 | +/* |
| 1347 | + * Define this if the system uses RELOCA. |
| 1348 | + */ |
| 1349 | +#undef ELF_USES_RELOCA |
| 1350 | + |
| 1351 | +/* JMPREL relocs are inside the DT_RELA table. */ |
| 1352 | +#define ELF_MACHINE_PLTREL_OVERLAP |
| 1353 | + |
| 1354 | +#define DL_NO_COPY_RELOCS |
| 1355 | + |
| 1356 | +#define HAVE_DL_INLINES_H |
| 1357 | + |
| 1358 | +/* |
| 1359 | + * Initialization sequence for a GOT. Copy the resolver function |
| 1360 | + * descriptor and the pointer to the elf_resolve/link_map data |
| 1361 | + * structure. Initialize the got_value in the module while at that. |
| 1362 | + */ |
| 1363 | +#define INIT_GOT(GOT_BASE,MODULE) \ |
| 1364 | +{ \ |
| 1365 | + (MODULE)->loadaddr.got_value = (GOT_BASE); \ |
| 1366 | + GOT_BASE[0] = ((unsigned long *)&_dl_linux_resolve)[0]; \ |
| 1367 | + GOT_BASE[1] = ((unsigned long *)&_dl_linux_resolve)[1]; \ |
| 1368 | + GOT_BASE[2] = (unsigned long) MODULE; \ |
| 1369 | +} |
| 1370 | + |
| 1371 | +/* Here we define the magic numbers that this dynamic loader should accept */ |
| 1372 | +#define MAGIC1 EM_UBICOM32 |
| 1373 | +#undef MAGIC2 |
| 1374 | + |
| 1375 | +/* Used for error messages */ |
| 1376 | +#define ELF_TARGET "UBICOM32" |
| 1377 | + |
| 1378 | +struct elf_resolve; |
| 1379 | + |
| 1380 | +struct funcdesc_value |
| 1381 | +{ |
| 1382 | + void *entry_point; |
| 1383 | + void *got_value; |
| 1384 | +/*int relocation; not sure if this required, but it does exist */ |
| 1385 | +}; |
| 1386 | + |
| 1387 | +extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden"))); |
| 1388 | +extern struct funcdesc_value volatile *__attribute__((__visibility__("hidden"))) |
| 1389 | + _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry); |
| 1390 | + |
| 1391 | +/* 4KiB page alignment. Should perhaps be made dynamic using |
| 1392 | + getpagesize(), based on AT_PAGESZ from auxvt? */ |
| 1393 | +#define PAGE_ALIGN 0xfffff000 |
| 1394 | +#define ADDR_ALIGN 0xfff |
| 1395 | +#define OFFS_ALIGN 0x7ffff000 |
| 1396 | + |
| 1397 | +struct funcdesc_ht; |
| 1398 | + |
| 1399 | +/* |
| 1400 | + * This asm does a quick relcation of string S (which is stored in the text |
| 1401 | + * section as thats all we can use |
| 1402 | + */ |
| 1403 | +#undef SEND_EARLY_STDERR |
| 1404 | +#define SEND_EARLY_STDERR(S) \ |
| 1405 | +do { \ |
| 1406 | + static const char __attribute__((section(".text"))) __s[] = (S); \ |
| 1407 | + const char *__p, *__scratch; \ |
| 1408 | + __asm__ ( \ |
| 1409 | + " call a3, 1f; \n\t" \ |
| 1410 | + "1: movei %0, #%%got_lo(1b) \n\t" \ |
| 1411 | + " move.4 %0, (%3, %0) \n\t" \ |
| 1412 | + " sub.4 %1, a3, %0; \n\t" \ |
| 1413 | + " add.4 %1, %1, %2; \n\t" \ |
| 1414 | + : "=&d" (__scratch), "=&d" (__p) \ |
| 1415 | + : "d" (__s), "a" (dl_boot_got_pointer) \ |
| 1416 | + : "a3", "a4", "d15"); \ |
| 1417 | + SEND_STDERR (__p); \ |
| 1418 | + { int __t; \ |
| 1419 | + for (__t = 0; __t < 0x100000; __t++) __asm__ __volatile__ (""); } \ |
| 1420 | +} while (0) |
| 1421 | + |
| 1422 | +#define DL_LOADADDR_TYPE struct elf32_fdpic_loadaddr |
| 1423 | + |
| 1424 | +#define DL_RELOC_ADDR(LOADADDR, ADDR) \ |
| 1425 | + ((ElfW(Addr))__reloc_pointer ((void*)(ADDR), (LOADADDR).map)) |
| 1426 | + |
| 1427 | +#define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) \ |
| 1428 | + ((void(*)(void)) _dl_funcdesc_for ((void*)(ADDR), (LOADADDR).got_value)) |
| 1429 | + |
| 1430 | +#define _dl_stabilize_funcdesc(val) \ |
| 1431 | + ({ __asm__ ("" : "+m" (*(val))); (val); }) |
| 1432 | + |
| 1433 | +#define DL_CALL_FUNC_AT_ADDR(ADDR, LOADADDR, SIGNATURE, ...) \ |
| 1434 | + ({ struct funcdesc_value fd = { (void*)(ADDR), (LOADADDR).got_value }; \ |
| 1435 | + void (*pf)(void) = (void*) _dl_stabilize_funcdesc (&fd); \ |
| 1436 | + (* SIGNATURE pf)(__VA_ARGS__); }) |
| 1437 | + |
| 1438 | +#define DL_INIT_LOADADDR_BOOT(LOADADDR, BASEADDR) \ |
| 1439 | + (__dl_init_loadaddr_map (&(LOADADDR), dl_boot_got_pointer, \ |
| 1440 | + dl_boot_ldsomap ?: dl_boot_progmap)) |
| 1441 | + |
| 1442 | +#define DL_INIT_LOADADDR_PROG(LOADADDR, BASEADDR) \ |
| 1443 | + (__dl_init_loadaddr_map (&(LOADADDR), 0, dl_boot_progmap)) |
| 1444 | + |
| 1445 | +#define DL_INIT_LOADADDR_EXTRA_DECLS \ |
| 1446 | + int dl_init_loadaddr_load_count; |
| 1447 | +#define DL_INIT_LOADADDR(LOADADDR, BASEADDR, PHDR, PHDRCNT) \ |
| 1448 | + (dl_init_loadaddr_load_count = \ |
| 1449 | + __dl_init_loadaddr (&(LOADADDR), (PHDR), (PHDRCNT))) |
| 1450 | +#define DL_INIT_LOADADDR_HDR(LOADADDR, ADDR, PHDR) \ |
| 1451 | + (__dl_init_loadaddr_hdr ((LOADADDR), (ADDR), (PHDR), \ |
| 1452 | + dl_init_loadaddr_load_count)) |
| 1453 | +#define DL_LOADADDR_UNMAP(LOADADDR, LEN) \ |
| 1454 | + (__dl_loadaddr_unmap ((LOADADDR), (NULL))) |
| 1455 | +#define DL_LIB_UNMAP(LIB, LEN) \ |
| 1456 | + (__dl_loadaddr_unmap ((LIB)->loadaddr, (LIB)->funcdesc_ht)) |
| 1457 | +#define DL_LOADADDR_BASE(LOADADDR) \ |
| 1458 | + ((LOADADDR).got_value) |
| 1459 | + |
| 1460 | +/* This is called from dladdr(), such that we map a function |
| 1461 | + descriptor's address to the function's entry point before trying to |
| 1462 | + find in which library it's defined. */ |
| 1463 | +#define DL_LOOKUP_ADDRESS(ADDRESS) (_dl_lookup_address (ADDRESS)) |
| 1464 | + |
| 1465 | +#define DL_ADDR_IN_LOADADDR(ADDR, TPNT, TFROM) \ |
| 1466 | + (! (TFROM) && __dl_addr_in_loadaddr ((void*)(ADDR), (TPNT)->loadaddr)) |
| 1467 | + |
| 1468 | +/* |
| 1469 | + * Compute the GOT address. On several platforms, we use assembly |
| 1470 | + * here. on FR-V FDPIC, there's no way to compute the GOT address, |
| 1471 | + * since the offset between text and data is not fixed, so we arrange |
| 1472 | + * for the assembly _dl_boot to pass this value as an argument to |
| 1473 | + * _dl_boot. */ |
| 1474 | +#define DL_BOOT_COMPUTE_GOT(got) ((got) = dl_boot_got_pointer) |
| 1475 | + |
| 1476 | +#define DL_BOOT_COMPUTE_DYN(dpnt, got, load_addr) \ |
| 1477 | + ((dpnt) = dl_boot_ldso_dyn_pointer) |
| 1478 | + |
| 1479 | +/* We only support loading FDPIC independently-relocatable shared |
| 1480 | + libraries. It probably wouldn't be too hard to support loading |
| 1481 | + shared libraries that require relocation by the same amount, but we |
| 1482 | + don't know that they exist or would be useful, and the dynamic |
| 1483 | + loader code could leak the whole-library map unless we keeping a |
| 1484 | + bit more state for DL_LOADADDR_UNMAP and DL_LIB_UNMAP, so let's |
| 1485 | + keep things simple for now. */ |
| 1486 | +#define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \ |
| 1487 | +do \ |
| 1488 | +{ \ |
| 1489 | + if (((epnt)->e_flags & EF_UBICOM32_FDPIC) && ! ((epnt)->e_flags & EF_UBICOM32_PIC)) \ |
| 1490 | + (piclib) = 2; \ |
| 1491 | + else \ |
| 1492 | + { \ |
| 1493 | + _dl_internal_error_number = LD_ERROR_NOTDYN; \ |
| 1494 | + _dl_dprintf(2, "%s: '%s' is not an FDPIC shared library" \ |
| 1495 | + "\n", (_dl_progname), (libname)); \ |
| 1496 | + _dl_close(infile); \ |
| 1497 | + return NULL; \ |
| 1498 | + } \ |
| 1499 | +\ |
| 1500 | +} \ |
| 1501 | +while (0) |
| 1502 | + |
| 1503 | +/* We want want to apply all relocations in the interpreter during |
| 1504 | + bootstrap. Because of this, we have to skip the interpreter |
| 1505 | + relocations in _dl_parse_relocation_information(), see |
| 1506 | + elfinterp.c. */ |
| 1507 | +#define DL_SKIP_BOOTSTRAP_RELOC(SYMTAB, INDEX, STRTAB) 0 |
| 1508 | + |
| 1509 | +#ifdef __NR_pread64 |
| 1510 | +#define _DL_PREAD(FD, BUF, SIZE, OFFSET) \ |
| 1511 | + (_dl_pread((FD), (BUF), (SIZE), (OFFSET))) |
| 1512 | +#endif |
| 1513 | + |
| 1514 | +/* We want to return to dlsym() a function descriptor if the symbol |
| 1515 | + turns out to be a function. */ |
| 1516 | +#define DL_FIND_HASH_VALUE(TPNT, TYPE_CLASS, SYM) \ |
| 1517 | + (((TYPE_CLASS) & ELF_RTYPE_CLASS_DLSYM) \ |
| 1518 | + && ELF32_ST_TYPE((SYM)->st_info) == STT_FUNC \ |
| 1519 | + ? _dl_funcdesc_for ((void *)DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value), \ |
| 1520 | + (TPNT)->loadaddr.got_value) \ |
| 1521 | + : DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value)) |
| 1522 | + |
| 1523 | +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM |
| 1524 | + * code/data */ |
| 1525 | + |
| 1526 | +#define DL_IS_SPECIAL_SEGMENT(EPNT, PPNT) \ |
| 1527 | + __dl_is_special_segment(EPNT, PPNT) |
| 1528 | +#define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \ |
| 1529 | + __dl_map_segment (EPNT, PPNT, INFILE, FLAGS) |
| 1530 | + |
| 1531 | +#endif |
| 1532 | + |
| 1533 | + |
| 1534 | +#define DL_GET_READY_TO_RUN_EXTRA_PARMS \ |
| 1535 | + , struct elf32_fdpic_loadmap *dl_boot_progmap, Elf32_Addr dl_boot_got_pointer |
| 1536 | +#define DL_GET_READY_TO_RUN_EXTRA_ARGS \ |
| 1537 | + , dl_boot_progmap, dl_boot_got_pointer |
| 1538 | + |
| 1539 | + |
| 1540 | +#ifdef __USE_GNU |
| 1541 | +# include <link.h> |
| 1542 | +#else |
| 1543 | +# define __USE_GNU |
| 1544 | +# include <link.h> |
| 1545 | +# undef __USE_GNU |
| 1546 | +#endif |
| 1547 | + |
| 1548 | +#include <elf.h> |
| 1549 | +static __inline__ void |
| 1550 | +elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr, |
| 1551 | + Elf32_Word relative_count) |
| 1552 | +{ |
| 1553 | +#if 0 |
| 1554 | + Elf32_Rel * rpnt = (void *) rel_addr; |
| 1555 | + --rpnt; |
| 1556 | + do { |
| 1557 | + Elf32_Addr *const reloc_addr = (void *) (load_off + (++rpnt)->r_offset); |
| 1558 | + |
| 1559 | + *reloc_addr = DL_RELOC_ADDR (load_off, *reloc_addr); |
| 1560 | + } while (--relative_count); |
| 1561 | +#endif |
| 1562 | +} |
| 1563 | --- /dev/null |
| 1564 | +++ b/ldso/ldso/ubicom32/elfinterp.c |
| 1565 | @@ -0,0 +1,366 @@ |
| 1566 | +/* Blackfin ELF shared library loader suppport |
| 1567 | + Copyright (C) 2003, 2004 Red Hat, Inc. |
| 1568 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 1569 | + Lots of code copied from ../i386/elfinterp.c, so: |
| 1570 | + Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald, |
| 1571 | + David Engel, Hongjiu Lu and Mitch D'Souza |
| 1572 | + Copyright (C) 2001-2002, Erik Andersen |
| 1573 | + All rights reserved. |
| 1574 | + |
| 1575 | +This file is part of uClibc. |
| 1576 | + |
| 1577 | +uClibc is free software; you can redistribute it and/or modify it |
| 1578 | +under the terms of the GNU Lesser General Public License as |
| 1579 | +published by the Free Software Foundation; either version 2.1 of the |
| 1580 | +License, or (at your option) any later version. |
| 1581 | + |
| 1582 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 1583 | +ANY WARRANTY; without even the implied warranty of |
| 1584 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 1585 | +Library General Public License for more details. |
| 1586 | + |
| 1587 | +You should have received a copy of the GNU Lesser General Public |
| 1588 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 1589 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 1590 | +USA. */ |
| 1591 | + |
| 1592 | +#include <sys/cdefs.h> /* __attribute_used__ */ |
| 1593 | + |
| 1594 | +/* Program to load an ELF binary on a linux system, and run it. |
| 1595 | + References to symbols in sharable libraries can be resolved by either |
| 1596 | + an ELF sharable library or a linux style of shared library. */ |
| 1597 | + |
| 1598 | +/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have |
| 1599 | + I ever taken any courses on internals. This program was developed using |
| 1600 | + information available through the book "UNIX SYSTEM V RELEASE 4, |
| 1601 | + Programmers guide: Ansi C and Programming Support Tools", which did |
| 1602 | + a more than adequate job of explaining everything required to get this |
| 1603 | + working. */ |
| 1604 | +extern int _dl_ubicom32_resolve_pending(void) __attribute__((__visibility__("hidden"))); |
| 1605 | + |
| 1606 | +struct funcdesc_value volatile *__attribute__((__visibility__("hidden"))) |
| 1607 | +_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) |
| 1608 | +{ |
| 1609 | + int reloc_type; |
| 1610 | + ELF_RELOC *this_reloc; |
| 1611 | + char *strtab; |
| 1612 | + ElfW(Sym) *symtab; |
| 1613 | + int symtab_index; |
| 1614 | + char *rel_addr; |
| 1615 | + struct elf_resolve *new_tpnt; |
| 1616 | + char *new_addr; |
| 1617 | + struct funcdesc_value funcval; |
| 1618 | + struct funcdesc_value volatile *got_entry; |
| 1619 | + char *symname; |
| 1620 | + |
| 1621 | + rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL]; |
| 1622 | + |
| 1623 | + this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry); |
| 1624 | + reloc_type = ELF_R_TYPE(this_reloc->r_info); |
| 1625 | + symtab_index = ELF_R_SYM(this_reloc->r_info); |
| 1626 | + |
| 1627 | + symtab = (Elf32_Sym *) tpnt->dynamic_info[DT_SYMTAB]; |
| 1628 | + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; |
| 1629 | + symname= strtab + symtab[symtab_index].st_name; |
| 1630 | + |
| 1631 | + if (reloc_type != R_UBICOM32_FUNCDESC_VALUE) { |
| 1632 | + _dl_dprintf(2, "%s: Incorrect relocation type in jump relocations\n", |
| 1633 | + _dl_progname); |
| 1634 | + _dl_exit(1); |
| 1635 | + } |
| 1636 | + |
| 1637 | + /* Address of GOT entry fix up */ |
| 1638 | + got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset); |
| 1639 | + |
| 1640 | + /* Get the address to be used to fill in the GOT entry. */ |
| 1641 | + new_addr = _dl_lookup_hash(symname, tpnt->symbol_scope, NULL, 0, &new_tpnt); |
| 1642 | + if (!new_addr) { |
| 1643 | + new_addr = _dl_lookup_hash(symname, NULL, NULL, 0, &new_tpnt); |
| 1644 | + if (!new_addr) { |
| 1645 | + _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", |
| 1646 | + _dl_progname, symname); |
| 1647 | + _dl_exit(1); |
| 1648 | + } |
| 1649 | + } |
| 1650 | + |
| 1651 | + funcval.entry_point = new_addr; |
| 1652 | + funcval.got_value = new_tpnt->loadaddr.got_value; |
| 1653 | + |
| 1654 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1655 | + if (_dl_debug_bindings) { |
| 1656 | + _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname); |
| 1657 | + if (_dl_debug_detail) |
| 1658 | + _dl_dprintf(_dl_debug_file, |
| 1659 | + "\n\tpatched (%x,%x) ==> (%x,%x) @ %x\n", |
| 1660 | + got_entry->entry_point, got_entry->got_value, |
| 1661 | + funcval.entry_point, funcval.got_value, |
| 1662 | + got_entry); |
| 1663 | + } |
| 1664 | + if (1 || !_dl_debug_nofixups) { |
| 1665 | + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0]; |
| 1666 | + got_entry->got_value = funcval.got_value; |
| 1667 | + got_entry->entry_point = funcval.entry_point; |
| 1668 | + } |
| 1669 | +#else |
| 1670 | + /* |
| 1671 | + * initially set the entry point to resolve pending before starting |
| 1672 | + * the update. This has the effect of putting all other requests in a |
| 1673 | + * holding pattern until the resolution is completed. |
| 1674 | + */ |
| 1675 | + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0]; |
| 1676 | + got_entry->got_value = funcval.got_value; |
| 1677 | + got_entry->entry_point = funcval.entry_point; |
| 1678 | +#endif |
| 1679 | + |
| 1680 | + return got_entry; |
| 1681 | +} |
| 1682 | + |
| 1683 | +static int |
| 1684 | +_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, |
| 1685 | + unsigned long rel_addr, unsigned long rel_size, |
| 1686 | + int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope, |
| 1687 | + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)) |
| 1688 | +{ |
| 1689 | + unsigned int i; |
| 1690 | + char *strtab; |
| 1691 | + ElfW(Sym) *symtab; |
| 1692 | + ELF_RELOC *rpnt; |
| 1693 | + int symtab_index; |
| 1694 | + |
| 1695 | + /* Now parse the relocation information */ |
| 1696 | + rpnt = (ELF_RELOC *) rel_addr; |
| 1697 | + rel_size = rel_size / sizeof(ELF_RELOC); |
| 1698 | + |
| 1699 | + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]; |
| 1700 | + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; |
| 1701 | + |
| 1702 | + for (i = 0; i < rel_size; i++, rpnt++) { |
| 1703 | + int res; |
| 1704 | + |
| 1705 | + symtab_index = ELF_R_SYM(rpnt->r_info); |
| 1706 | + debug_sym(symtab,strtab,symtab_index); |
| 1707 | + debug_reloc(symtab,strtab,rpnt); |
| 1708 | + |
| 1709 | + res = reloc_fnc (tpnt, scope, rpnt, symtab, strtab); |
| 1710 | + |
| 1711 | + if (res==0) continue; |
| 1712 | + |
| 1713 | + _dl_dprintf(2, "\n%s: ",_dl_progname); |
| 1714 | + |
| 1715 | + if (symtab_index) |
| 1716 | + _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name); |
| 1717 | + |
| 1718 | + if (res <0) { |
| 1719 | + int reloc_type = ELF_R_TYPE(rpnt->r_info); |
| 1720 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1721 | + _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type)); |
| 1722 | +#else |
| 1723 | + _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type); |
| 1724 | +#endif |
| 1725 | + _dl_exit(-res); |
| 1726 | + } else if (res >0) { |
| 1727 | + _dl_dprintf(2, "can't resolve symbol\n"); |
| 1728 | + return res; |
| 1729 | + } |
| 1730 | + } |
| 1731 | + return 0; |
| 1732 | +} |
| 1733 | + |
| 1734 | +static int |
| 1735 | +_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope, |
| 1736 | + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab) |
| 1737 | +{ |
| 1738 | + int reloc_type; |
| 1739 | + int symtab_index; |
| 1740 | + char *symname; |
| 1741 | + unsigned long reloc_value = 0, *reloc_addr; |
| 1742 | + struct { unsigned long v; } __attribute__((__packed__)) |
| 1743 | + *reloc_addr_packed; |
| 1744 | + unsigned long symbol_addr; |
| 1745 | + struct elf_resolve *symbol_tpnt; |
| 1746 | + struct funcdesc_value funcval; |
| 1747 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1748 | + unsigned long old_val; |
| 1749 | +#endif |
| 1750 | + |
| 1751 | + reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset); |
| 1752 | + __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr)); |
| 1753 | + reloc_type = ELF_R_TYPE(rpnt->r_info); |
| 1754 | + symtab_index = ELF_R_SYM(rpnt->r_info); |
| 1755 | + symbol_addr = 0; |
| 1756 | + symname = strtab + symtab[symtab_index].st_name; |
| 1757 | + |
| 1758 | + if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) { |
| 1759 | + symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value); |
| 1760 | + symbol_tpnt = tpnt; |
| 1761 | + } else { |
| 1762 | + |
| 1763 | + symbol_addr = (unsigned long) |
| 1764 | + _dl_lookup_hash(symname, scope, NULL, 0, &symbol_tpnt); |
| 1765 | + |
| 1766 | + /* |
| 1767 | + * We want to allow undefined references to weak symbols - this might |
| 1768 | + * have been intentional. We should not be linking local symbols |
| 1769 | + * here, so all bases should be covered. |
| 1770 | + */ |
| 1771 | + |
| 1772 | + if (!symbol_addr && ELF_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) { |
| 1773 | + _dl_dprintf (2, "%s: can't resolve symbol '%s'\n", |
| 1774 | + _dl_progname, strtab + symtab[symtab_index].st_name); |
| 1775 | + _dl_exit (1); |
| 1776 | + } |
| 1777 | + } |
| 1778 | + |
| 1779 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1780 | + if (_dl_debug_reloc && _dl_debug_detail) |
| 1781 | + { |
| 1782 | + if ((long)reloc_addr_packed & 3) |
| 1783 | + old_val = reloc_addr_packed->v; |
| 1784 | + else |
| 1785 | + old_val = *reloc_addr; |
| 1786 | + } |
| 1787 | + else |
| 1788 | + old_val = 0; |
| 1789 | +#endif |
| 1790 | + switch (reloc_type) { |
| 1791 | + case R_UBICOM32_NONE: |
| 1792 | + break; |
| 1793 | + case R_UBICOM32_32: |
| 1794 | + if ((long)reloc_addr_packed & 3) |
| 1795 | + reloc_value = reloc_addr_packed->v += symbol_addr; |
| 1796 | + else |
| 1797 | + reloc_value = *reloc_addr += symbol_addr; |
| 1798 | + break; |
| 1799 | + case R_UBICOM32_FUNCDESC_VALUE: |
| 1800 | + funcval.entry_point = (void*)symbol_addr; |
| 1801 | + /* The addend of FUNCDESC_VALUE |
| 1802 | + relocations referencing global |
| 1803 | + symbols must be ignored, because it |
| 1804 | + may hold the address of a lazy PLT |
| 1805 | + entry. */ |
| 1806 | + if (ELF_ST_BIND(symtab[symtab_index].st_info) == STB_LOCAL) |
| 1807 | + funcval.entry_point += *reloc_addr; |
| 1808 | + reloc_value = (unsigned long)funcval.entry_point; |
| 1809 | + if (symbol_addr) |
| 1810 | + funcval.got_value |
| 1811 | + = symbol_tpnt->loadaddr.got_value; |
| 1812 | + else |
| 1813 | + funcval.got_value = 0; |
| 1814 | + |
| 1815 | +/// XXX this is my best guess as to what I should be doing, but I'm |
| 1816 | +/// putting a break-point here so I can inspect the first time this is |
| 1817 | +/// used. |
| 1818 | + __asm__ ( |
| 1819 | + " move.4 4(%0), 4(%1) \n\t" |
| 1820 | + " move.4 0(%0), 0(%1) \n\t" /* Must to entry_point last */ |
| 1821 | + : |
| 1822 | + : "a" (reloc_addr), "a" (&funcval) |
| 1823 | + : "memory" ); |
| 1824 | + break; |
| 1825 | + case R_UBICOM32_FUNCDESC: |
| 1826 | + if ((long)reloc_addr_packed & 3) |
| 1827 | + reloc_value = reloc_addr_packed->v; |
| 1828 | + else |
| 1829 | + reloc_value = *reloc_addr; |
| 1830 | + if (symbol_addr) |
| 1831 | + reloc_value = (unsigned long)_dl_funcdesc_for |
| 1832 | + ((char *)symbol_addr + reloc_value, |
| 1833 | + symbol_tpnt->loadaddr.got_value); |
| 1834 | + else |
| 1835 | + reloc_value = 0; |
| 1836 | + if ((long)reloc_addr_packed & 3) |
| 1837 | + reloc_addr_packed->v = reloc_value; |
| 1838 | + else |
| 1839 | + *reloc_addr = reloc_value; |
| 1840 | + break; |
| 1841 | + default: |
| 1842 | + return -1; |
| 1843 | + } |
| 1844 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1845 | + if (_dl_debug_reloc && _dl_debug_detail) { |
| 1846 | + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_value, reloc_addr); |
| 1847 | + switch (reloc_type) { |
| 1848 | + case R_UBICOM32_FUNCDESC_VALUE: |
| 1849 | + _dl_dprintf(_dl_debug_file, " got %x", ((struct funcdesc_value *)reloc_value)->got_value); |
| 1850 | + break; |
| 1851 | + case R_UBICOM32_FUNCDESC: |
| 1852 | + if (! reloc_value) |
| 1853 | + break; |
| 1854 | + _dl_dprintf(_dl_debug_file, " funcdesc (%x,%x)", |
| 1855 | + ((struct funcdesc_value *)reloc_value)->entry_point, |
| 1856 | + ((struct funcdesc_value *)reloc_value)->got_value); |
| 1857 | + break; |
| 1858 | + } |
| 1859 | + } |
| 1860 | +#endif |
| 1861 | + |
| 1862 | + return 0; |
| 1863 | +} |
| 1864 | + |
| 1865 | +static int |
| 1866 | +_dl_do_lazy_reloc (struct elf_resolve *tpnt, |
| 1867 | + struct dyn_elf *scope __attribute__((unused)), |
| 1868 | + ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)), |
| 1869 | + char *strtab __attribute__((unused))) |
| 1870 | +{ |
| 1871 | + int reloc_type; |
| 1872 | + struct funcdesc_value volatile *reloc_addr; |
| 1873 | + struct funcdesc_value funcval; |
| 1874 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1875 | + unsigned long old_val; |
| 1876 | +#endif |
| 1877 | + |
| 1878 | + reloc_addr = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset); |
| 1879 | + reloc_type = ELF_R_TYPE(rpnt->r_info); |
| 1880 | + |
| 1881 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1882 | + old_val = (unsigned long)reloc_addr->entry_point; |
| 1883 | +#endif |
| 1884 | + switch (reloc_type) { |
| 1885 | + case R_UBICOM32_NONE: |
| 1886 | + break; |
| 1887 | + case R_UBICOM32_FUNCDESC_VALUE: |
| 1888 | + funcval = *reloc_addr; |
| 1889 | + funcval.entry_point = (void*)DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point); |
| 1890 | + funcval.got_value = tpnt->loadaddr.got_value; |
| 1891 | + *reloc_addr = funcval; |
| 1892 | + break; |
| 1893 | + default: |
| 1894 | + return -1; |
| 1895 | + } |
| 1896 | +#if defined (__SUPPORT_LD_DEBUG__) |
| 1897 | + if (_dl_debug_reloc && _dl_debug_detail) |
| 1898 | + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_addr->entry_point, reloc_addr); |
| 1899 | +#endif |
| 1900 | + return 0; |
| 1901 | + |
| 1902 | +} |
| 1903 | + |
| 1904 | +void |
| 1905 | +_dl_parse_lazy_relocation_information |
| 1906 | +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size) |
| 1907 | +{ |
| 1908 | + _dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc); |
| 1909 | +} |
| 1910 | + |
| 1911 | +int |
| 1912 | +_dl_parse_relocation_information |
| 1913 | +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size) |
| 1914 | +{ |
| 1915 | + return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, _dl_do_reloc); |
| 1916 | +} |
| 1917 | + |
| 1918 | +#if 0 |
| 1919 | +/* We don't have copy relocs. */ |
| 1920 | +int |
| 1921 | +_dl_parse_copy_information |
| 1922 | +(struct dyn_elf *rpnt __attribute__((unused)), |
| 1923 | + unsigned long rel_addr __attribute__((unused)), |
| 1924 | + unsigned long rel_size __attribute__((unused))) |
| 1925 | +{ |
| 1926 | + return 0; |
| 1927 | +} |
| 1928 | +#endif |
| 1929 | +#ifndef IS_IN_libdl |
| 1930 | +# include "../../libc/sysdeps/linux/ubicom32/crtreloc.c" |
| 1931 | +#endif |
| 1932 | --- /dev/null |
| 1933 | +++ b/ldso/ldso/ubicom32/resolve.S |
| 1934 | @@ -0,0 +1,161 @@ |
| 1935 | + /* Copyright (C) 2003 Red Hat, Inc. |
| 1936 | + Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 1937 | + |
| 1938 | + Copyright (C) 2009 Ubicom Inc. |
| 1939 | + Ported to Ubicom32 by Ubicom Inc. |
| 1940 | + |
| 1941 | +This file is part of uClibc. |
| 1942 | + |
| 1943 | +uClibc is free software; you can redistribute it and/or modify it |
| 1944 | +under the terms of the GNU Lesser General Public License as |
| 1945 | +published by the Free Software Foundation; either version 2.1 of the |
| 1946 | +License, or (at your option) any later version. |
| 1947 | + |
| 1948 | +uClibc is distributed in the hope that it will be useful, but WITHOUT |
| 1949 | +ANY WARRANTY; without even the implied warranty of |
| 1950 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 1951 | +Library General Public License for more details. |
| 1952 | + |
| 1953 | +You should have received a copy of the GNU Lesser General Public |
| 1954 | +License along with uClibc; see the file COPYING.LIB. If not, write to |
| 1955 | +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 1956 | +USA. */ |
| 1957 | + |
| 1958 | + |
| 1959 | +/* |
| 1960 | + * The function below is tail-called by resolver stubs when a lazily-bound * |
| 1961 | + * function is called. It must preserve all registers that could * be used to |
| 1962 | + * pass arguments to the actual function. |
| 1963 | + * |
| 1964 | + * On entry to the function d0-d13 contain parameters to the actual function of |
| 1965 | + * interest |
| 1966 | + * |
| 1967 | + * a5 contains the return address |
| 1968 | + * a0 is pointing to the GOT table for the original function |
| 1969 | + * (a0) _dl_linux_resolve |
| 1970 | + * 4(a0) GOT for _dl_linux_resolve |
| 1971 | + * 8(a0) is pointer to "structure elf_resolve" of the module where the call |
| 1972 | + * originated from |
| 1973 | + * |
| 1974 | + * a3 is pointing to the function descriptor in the GOT table, and 8(a3) the |
| 1975 | + * resolver lookup information. |
| 1976 | + * |
| 1977 | + * _dl_linux_resolve calls _dl_linux_resolver passing it pointer to |
| 1978 | + * struct elf_resolve and the relocation entry. |
| 1979 | + * |
| 1980 | + * _dl_linux_resolver() figures out where the jump symbol is _really_ supposed |
| 1981 | + * to have jumped to and returns that to us. Once we have that, we prepare to |
| 1982 | + * tail-call the actual function, clean up after ourselves, restoring the |
| 1983 | + * original arguments, then jump to the fixed up address. |
| 1984 | + */ |
| 1985 | + |
| 1986 | +#if 0 |
| 1987 | + /* |
| 1988 | + * Here is what the linker will use for the PLT. |
| 1989 | + */ |
| 1990 | +sample_PLT_functionX: /* (at entry a0 contains GOT for this library) */ |
| 1991 | + movei d15, # -%lo(got_funcdescX) ; load offset for GOT |
| 1992 | + lea.4 a3, (a0, d15) ; a4 is now the function descriptor |
| 1993 | + move.4 a4, 0(a3) ; get entry_point |
| 1994 | + move.4 a0, 4(a3) ; set new GOT |
| 1995 | + |
| 1996 | + /* |
| 1997 | + * jump to resovled function OR PLT_trampoline Nat had some code here |
| 1998 | + * that uses the stack instead of a3 to reduces hazards. |
| 1999 | + */ |
| 2000 | + calli a4, 0(a4) |
| 2001 | + |
| 2002 | + |
| 2003 | +sample_PLT_trampoline: |
| 2004 | + /* |
| 2005 | + * find the old got by undoing what was done above. An alternative |
| 2006 | + * could have been to ‘save’ the old got in say d14 but that would add 1 |
| 2007 | + * instruction to every PLT and there is only 1 PLT trampoline per library. |
| 2008 | + */ |
| 2009 | + ret (a0) ; jump to _dl_linux_resolve |
| 2010 | +#endif |
| 2011 | + |
| 2012 | + .text |
| 2013 | + .p2align 4 |
| 2014 | + |
| 2015 | + .hidden _dl_linux_resolve |
| 2016 | + .global _dl_linux_resolve |
| 2017 | + .type _dl_linux_resolve,@function |
| 2018 | +_dl_linux_resolve: |
| 2019 | + /* Preserve arguments and return address */ |
| 2020 | + move.4 -4(sp)++, d0 |
| 2021 | + move.4 -4(sp)++, d1 |
| 2022 | + move.4 -4(sp)++, d2 |
| 2023 | + move.4 -4(sp)++, d3 |
| 2024 | + move.4 -4(sp)++, d4 |
| 2025 | + move.4 -4(sp)++, d5 |
| 2026 | + move.4 -4(sp)++, d6 |
| 2027 | + move.4 -4(sp)++, d7 |
| 2028 | + move.4 -4(sp)++, d8 |
| 2029 | + move.4 -4(sp)++, d9 |
| 2030 | + move.4 -4(sp)++, d10 |
| 2031 | + move.4 -4(sp)++, d11 |
| 2032 | + move.4 -4(sp)++, d12 |
| 2033 | + move.4 -4(sp)++, d13 |
| 2034 | + move.4 -4(sp)++, a5 |
| 2035 | + |
| 2036 | + /* Prepare to call _dl_linux_resolver. */ |
| 2037 | + move.4 d0, 8(a0) ; reference to elf_resolve |
| 2038 | + /* Not aligned for space reasons. */ |
| 2039 | + move.4 d1, mac_hi ; reference to GOT table entry which |
| 2040 | + ; contains the relocation information. |
| 2041 | + |
| 2042 | + move.4 a0, 4(a0) ; switch to GOT for _dl_linux_resolve |
| 2043 | + call a5, _dl_linux_resolver; |
| 2044 | + |
| 2045 | + /* Move aside return value that contains the FUNCDESC_VALUE. */ |
| 2046 | + ;P3 = R0; |
| 2047 | + move.4 a3, d0; |
| 2048 | + |
| 2049 | + /* Restore arguments. */ |
| 2050 | + move.4 a5, (sp)4++ |
| 2051 | + move.4 d13, (sp)4++ |
| 2052 | + move.4 d12, (sp)4++ |
| 2053 | + move.4 d11, (sp)4++ |
| 2054 | + move.4 d10, (sp)4++ |
| 2055 | + move.4 d9, (sp)4++ |
| 2056 | + move.4 d8, (sp)4++ |
| 2057 | + move.4 d7, (sp)4++ |
| 2058 | + move.4 d6, (sp)4++ |
| 2059 | + move.4 d5, (sp)4++ |
| 2060 | + move.4 d4, (sp)4++ |
| 2061 | + move.4 d3, (sp)4++ |
| 2062 | + move.4 d2, (sp)4++ |
| 2063 | + move.4 d1, (sp)4++ |
| 2064 | + move.4 d0, (sp)4++ |
| 2065 | + |
| 2066 | + /* Now jump to the actual function. */ |
| 2067 | + /* a3 contains func_desc resolution */ |
| 2068 | + move.4 a4, 0(a3) ; address of function X |
| 2069 | + move.4 a0, 4(a3) ; switch to GOT for function X |
| 2070 | + calli a4, 0(a4) ; call through a4, a5 remains |
| 2071 | + |
| 2072 | + .size _dl_linux_resolve, . - _dl_linux_resolve |
| 2073 | + |
| 2074 | + .hidden _dl_ubicom32_resolve_pending |
| 2075 | + .global _dl_ubicom32_resolve_pending |
| 2076 | + .type _dl_ubicom32_resolve_pending,@function |
| 2077 | + |
| 2078 | +_dl_ubicom32_resolve_pending: |
| 2079 | + /* |
| 2080 | + * A special function that is used to ensure thread saftly when the fd |
| 2081 | + * for a particular resolution is being updated. |
| 2082 | + * |
| 2083 | + * At entry, a3 must point to the FD. While the FD is being updated the |
| 2084 | + * entry_point will continue to point to _dl_ubicom32_resolve_pending so |
| 2085 | + * we will effectively spin until the resolver update is complete. |
| 2086 | + */ |
| 2087 | + |
| 2088 | + move.4 a4, 0(a3) ; get entry_point |
| 2089 | + move.4 a0, 4(a3) ; set new GOT |
| 2090 | + |
| 2091 | + /* |
| 2092 | + * jump to resovled function or back to _dl_ubicom32_resolve_pending. |
| 2093 | + */ |
| 2094 | + calli a4, 0(a4) |
| 2095 | + .size _dl_ubicom32_resolve_pending, . - _dl_ubicom32_resolve_pending |
| 2096 | --- a/libc/misc/Makefile.in |
| 2097 | +++ b/libc/misc/Makefile.in |
| 2098 | @@ -12,7 +12,9 @@ include $(top_srcdir)libc/misc/assert/Ma |
| 2099 | include $(top_srcdir)libc/misc/ctype/Makefile.in |
| 2100 | include $(top_srcdir)libc/misc/dirent/Makefile.in |
| 2101 | include $(top_srcdir)libc/misc/error/Makefile.in |
| 2102 | +ifneq ($(ARCH_HAS_NO_LDSO),y) |
| 2103 | include $(top_srcdir)libc/misc/elf/Makefile.in |
| 2104 | +endif |
| 2105 | include $(top_srcdir)libc/misc/file/Makefile.in |
| 2106 | include $(top_srcdir)libc/misc/fnmatch/Makefile.in |
| 2107 | include $(top_srcdir)libc/misc/ftw/Makefile.in |
| 2108 | --- a/libc/misc/elf/dl-iterate-phdr.c |
| 2109 | +++ b/libc/misc/elf/dl-iterate-phdr.c |
| 2110 | @@ -14,7 +14,7 @@ |
| 2111 | |
| 2112 | #include <link.h> |
| 2113 | #include <ldso.h> |
| 2114 | - |
| 2115 | +#include <memory.h> |
| 2116 | /* we want this in libc but nowhere else */ |
| 2117 | #ifdef __USE_GNU |
| 2118 | |
| 2119 | --- a/libc/stdlib/malloc/malloc.c |
| 2120 | +++ b/libc/stdlib/malloc/malloc.c |
| 2121 | @@ -23,7 +23,7 @@ |
| 2122 | |
| 2123 | /* The malloc heap. We provide a bit of initial static space so that |
| 2124 | programs can do a little mallocing without mmaping in more space. */ |
| 2125 | -HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 256); |
| 2126 | +HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 32768); |
| 2127 | struct heap_free_area *__malloc_heap = HEAP_INIT_WITH_FA (initial_fa); |
| 2128 | #ifdef HEAP_USE_LOCKING |
| 2129 | malloc_mutex_t __malloc_heap_lock = PTHREAD_MUTEX_INITIALIZER; |
| 2130 | --- /dev/null |
| 2131 | +++ b/libc/string/ubicom32/Makefile |
| 2132 | @@ -0,0 +1,13 @@ |
| 2133 | +# Makefile for uClibc |
| 2134 | +# |
| 2135 | +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> |
| 2136 | +# |
| 2137 | +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 2138 | +# |
| 2139 | + |
| 2140 | +top_srcdir:=../../../ |
| 2141 | +top_builddir:=../../../ |
| 2142 | +all: objs |
| 2143 | +include $(top_builddir)Rules.mak |
| 2144 | +include ../Makefile.in |
| 2145 | +include $(top_srcdir)Makerules |
| 2146 | --- /dev/null |
| 2147 | +++ b/libc/string/ubicom32/memcpy.c |
| 2148 | @@ -0,0 +1,152 @@ |
| 2149 | +/* Copy memory to memory until the specified number of bytes |
| 2150 | + has been copied. Overlap is NOT handled correctly. |
| 2151 | + Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc. |
| 2152 | + This file is part of the GNU C Library. |
| 2153 | + Contributed by Torbjorn Granlund (tege@sics.se). |
| 2154 | + |
| 2155 | + The GNU C Library is free software; you can redistribute it and/or |
| 2156 | + modify it under the terms of the GNU Lesser General Public |
| 2157 | + License as published by the Free Software Foundation; either |
| 2158 | + version 2.1 of the License, or (at your option) any later version. |
| 2159 | + |
| 2160 | + The GNU C Library is distributed in the hope that it will be useful, |
| 2161 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 2162 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 2163 | + Lesser General Public License for more details. |
| 2164 | + |
| 2165 | + You should have received a copy of the GNU Lesser General Public |
| 2166 | + License along with the GNU C Library; if not, write to the Free |
| 2167 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 2168 | + 02111-1307 USA. */ |
| 2169 | + |
| 2170 | +#include <string.h> |
| 2171 | + |
| 2172 | +typedef unsigned long addr_t; |
| 2173 | + |
| 2174 | +libc_hidden_proto(memcpy) |
| 2175 | + |
| 2176 | +void *memcpy (void *dest, const void *src, size_t n) |
| 2177 | +{ |
| 2178 | + void *dest_ret = dest; |
| 2179 | + void *aligned_start; |
| 2180 | + |
| 2181 | + if (likely((((addr_t)dest ^ (addr_t)src) & 3) == 0) && likely(n > 6)) { |
| 2182 | + size_t m; |
| 2183 | + n -= (4 - (addr_t)dest) & 0x03; |
| 2184 | + m = n >> 2; |
| 2185 | + __asm__ volatile ( |
| 2186 | + " call %4, 99f \n\t" // load %4 with address of 99 |
| 2187 | + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99 |
| 2188 | + " add.4 %4, %4, d15 \n\t" // add difference |
| 2189 | + |
| 2190 | + " sub.4 d15, #0, %2 \n\t" // set up for jump table |
| 2191 | + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) |
| 2192 | + " lea.4 %4, (%4,d15) \n\t" |
| 2193 | + |
| 2194 | + " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3) |
| 2195 | + " jmpne.w.f 100f \n\t" |
| 2196 | + " calli %4, 0(%4) \n\t" // 4-byte alignment |
| 2197 | + |
| 2198 | + "100: cmpi d15, #2 \n\t" |
| 2199 | + " jmpne.s.f 101f \n\t" |
| 2200 | + " move.2 (%0)2++, (%1)2++ \n\t" |
| 2201 | + " calli %4, 0(%4) \n\t" // 2-byte alignment |
| 2202 | + |
| 2203 | + "101: move.1 (%0)1++, (%1)1++ \n\t" |
| 2204 | + " jmpgt.s.f 102f \n\t" // 3-byte alignment |
| 2205 | + " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment |
| 2206 | + "102: calli %4, 0(%4) \n\t" |
| 2207 | + |
| 2208 | + "200: cmpi %3, #2 \n\t" |
| 2209 | + " jmplt.s.f 201f \n\t" |
| 2210 | + " move.2 (%0)2++, (%1)2++ \n\t" |
| 2211 | + " jmpeq.s.t 2f \n\t" |
| 2212 | + "201: move.1 (%0)1++, (%1)1++ \n\t" |
| 2213 | + " jmpt.w.t 2f \n\t" |
| 2214 | + |
| 2215 | + "1: .rept 25 \n\t" |
| 2216 | + " movea (%0)4++, (%1)4++ \n\t" |
| 2217 | + " .endr \n\t" |
| 2218 | + " .rept 7 \n\t" |
| 2219 | + " move.4 (%0)4++, (%1)4++ \n\t" |
| 2220 | + " .endr \n\t" |
| 2221 | + " add.4 %2, #-32, %2 \n\t" |
| 2222 | + " jmpgt.w.f 1b \n\t" |
| 2223 | + |
| 2224 | + " and.4 %3, #3, %3 \n\t" // check n |
| 2225 | + " jmpne.w.f 200b \n\t" |
| 2226 | + "2: \n\t" |
| 2227 | + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start) |
| 2228 | + : |
| 2229 | + : "d15", "memory", "cc" |
| 2230 | + ); |
| 2231 | + |
| 2232 | + return dest_ret; |
| 2233 | + } |
| 2234 | + |
| 2235 | + if (likely((((addr_t)dest ^ (addr_t)src) & 1) == 0) && likely(n > 2)) { |
| 2236 | + size_t m; |
| 2237 | + n -= (addr_t)dest & 0x01; |
| 2238 | + m = n >> 1; |
| 2239 | + __asm__ volatile ( |
| 2240 | + " call %4, 99f \n\t" // load %4 with address of 99 |
| 2241 | + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99 |
| 2242 | + " add.4 %4, %4, d15 \n\t" // add difference |
| 2243 | + |
| 2244 | + " sub.4 d15, #0, %2 \n\t" // set up for jump table |
| 2245 | + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) |
| 2246 | + " lea.4 %4, (%4,d15) \n\t" |
| 2247 | + |
| 2248 | + " btst %0, #0 \n\t" // check bit 0 |
| 2249 | + " jmpne.w.f 100f \n\t" |
| 2250 | + " calli %4, 0(%4) \n\t" // 4-byte alignment |
| 2251 | + |
| 2252 | + "100: move.1 (%0)1++, (%1)1++ \n\t" |
| 2253 | + " calli %4, 0(%4) \n\t" |
| 2254 | + |
| 2255 | + "200: move.1 (%0)1++, (%1)1++ \n\t" |
| 2256 | + " jmpt.w.t 2f \n\t" |
| 2257 | + |
| 2258 | + "1: .rept 32 \n\t" |
| 2259 | + " move.2 (%0)2++, (%1)2++ \n\t" |
| 2260 | + " .endr \n\t" |
| 2261 | + " add.4 %2, #-32, %2 \n\t" |
| 2262 | + " jmpgt.w.f 1b \n\t" |
| 2263 | + |
| 2264 | + " and.4 %3, #1, %3 \n\t" // check n |
| 2265 | + " jmpne.w.f 200b \n\t" |
| 2266 | + "2: \n\t" |
| 2267 | + |
| 2268 | + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start) |
| 2269 | + : |
| 2270 | + : "d15", "memory", "cc" |
| 2271 | + ); |
| 2272 | + return dest_ret; |
| 2273 | + } |
| 2274 | + |
| 2275 | + __asm__ volatile ( |
| 2276 | + " call %3, 99f \n\t" // load %3 with address of 99 |
| 2277 | + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99 |
| 2278 | + " add.4 %3, %3, d15 \n\t" // add difference |
| 2279 | + |
| 2280 | + " sub.4 d15, #0, %2 \n\t" |
| 2281 | + " jmpeq.w.f 2f \n\t" |
| 2282 | + " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1) |
| 2283 | + " lea.4 %3, (%3,d15) \n\t" |
| 2284 | + " calli %3, 0(%3) \n\t" |
| 2285 | + |
| 2286 | + "1: .rept 16 \n\t" |
| 2287 | + " move.1 (%0)1++, (%1)1++ \n\t" |
| 2288 | + " .endr \n\t" |
| 2289 | + " add.4 %2, #-16, %2 \n\t" |
| 2290 | + " jmpgt.w.f 1b \n\t" |
| 2291 | + "2: \n\t" |
| 2292 | + |
| 2293 | + : "+a"(dest), "+a"(src), "+d"(n), "=a"(aligned_start) |
| 2294 | + : |
| 2295 | + : "d15", "memory", "cc" |
| 2296 | + ); |
| 2297 | + |
| 2298 | + return dest_ret; |
| 2299 | +} |
| 2300 | +libc_hidden_def(memcpy) |
| 2301 | --- /dev/null |
| 2302 | +++ b/libc/string/ubicom32/memset.c |
| 2303 | @@ -0,0 +1,107 @@ |
| 2304 | +/* Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc. |
| 2305 | + This file is part of the GNU C Library. |
| 2306 | + |
| 2307 | + The GNU C Library is free software; you can redistribute it and/or |
| 2308 | + modify it under the terms of the GNU Lesser General Public |
| 2309 | + License as published by the Free Software Foundation; either |
| 2310 | + version 2.1 of the License, or (at your option) any later version. |
| 2311 | + |
| 2312 | + The GNU C Library is distributed in the hope that it will be useful, |
| 2313 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 2314 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 2315 | + Lesser General Public License for more details. |
| 2316 | + |
| 2317 | + You should have received a copy of the GNU Lesser General Public |
| 2318 | + License along with the GNU C Library; if not, write to the Free |
| 2319 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 2320 | + 02111-1307 USA. */ |
| 2321 | + |
| 2322 | +#include <string.h> |
| 2323 | + |
| 2324 | +typedef unsigned long addr_t; |
| 2325 | + |
| 2326 | +libc_hidden_proto(memset) |
| 2327 | +void *memset (void *s, int c, size_t n) |
| 2328 | +{ |
| 2329 | + void *s_ret = s; |
| 2330 | + void *aligned_start; |
| 2331 | + if (likely(n > 6)) { |
| 2332 | + size_t m; |
| 2333 | + n -= (4 - (addr_t)s) & 0x03; |
| 2334 | + m = n >> 2; |
| 2335 | + __asm__ volatile ( |
| 2336 | + " call %4, 99f \n\t" // load %4 with address of 99 |
| 2337 | + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99 |
| 2338 | + " add.4 %4, %4, d15 \n\t" // add difference |
| 2339 | + |
| 2340 | + " sub.4 d15, #0, %2 \n\t" // set up for jump table |
| 2341 | + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) |
| 2342 | + " shmrg.1 %1, %1, %1 \n\t" |
| 2343 | + " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c |
| 2344 | + " lea.4 %4, (%4,d15) \n\t" |
| 2345 | + |
| 2346 | + " bfextu d15, %0, #2 \n\t" // d15 = (s & 3) |
| 2347 | + " jmpne.w.f 100f \n\t" |
| 2348 | + " calli %4, 0(%4) \n\t" // 4-byte alignment |
| 2349 | + |
| 2350 | + "100: cmpi d15, #2 \n\t" |
| 2351 | + " jmpne.s.f 101f \n\t" |
| 2352 | + " move.2 (%0)2++, %1 \n\t" |
| 2353 | + " calli %4, 0(%4) \n\t" // 2-byte alignment |
| 2354 | + |
| 2355 | + "101: move.1 (%0)1++, %1 \n\t" |
| 2356 | + " jmpgt.s.f 102f \n\t" // 3-byte alignment |
| 2357 | + " move.2 (%0)2++, %1 \n\t" // 1-byte alignment |
| 2358 | + "102: calli %4, 0(%4) \n\t" |
| 2359 | + |
| 2360 | + "200: cmpi %3, #2 \n\t" |
| 2361 | + " jmplt.s.f 201f \n\t" |
| 2362 | + " move.2 (%0)2++, %1 \n\t" |
| 2363 | + " jmpeq.s.t 2f \n\t" |
| 2364 | + "201: move.1 (%0)1++, %1 \n\t" |
| 2365 | + " jmpt.w.t 2f \n\t" |
| 2366 | + |
| 2367 | + "1: .rept 25 \n\t" |
| 2368 | + " movea (%0)4++, %1 \n\t" |
| 2369 | + " .endr \n\t" |
| 2370 | + " .rept 7 \n\t" |
| 2371 | + " move.4 (%0)4++, %1 \n\t" |
| 2372 | + " .endr \n\t" |
| 2373 | + " add.4 %2, #-32, %2 \n\t" |
| 2374 | + " jmpgt.w.f 1b \n\t" |
| 2375 | + |
| 2376 | + " and.4 %3, #3, %3 \n\t" // test bit 1 of n |
| 2377 | + " jmpne.w.f 200b \n\t" |
| 2378 | + "2: \n\t" |
| 2379 | + : "+a"(s), "+d"(c), "+d"(m), "+d"(n), "=a"(aligned_start) |
| 2380 | + : |
| 2381 | + : "d15", "memory", "cc" |
| 2382 | + ); |
| 2383 | + |
| 2384 | + return s_ret; |
| 2385 | + } |
| 2386 | + |
| 2387 | + __asm__ volatile ( |
| 2388 | + " call %3, 99f \n\t" // load %3 with address of 99 |
| 2389 | + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99 |
| 2390 | + " add.4 %3, %3, d15 \n\t" // add difference |
| 2391 | + |
| 2392 | + " sub.4 d15, #0, %2 \n\t" |
| 2393 | + " jmpeq.w.f 2f \n\t" |
| 2394 | + " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1) |
| 2395 | + " lea.4 %3, (%3,d15) \n\t" |
| 2396 | + " calli %3, 0(%3) \n\t" |
| 2397 | + |
| 2398 | + "1: .rept 8 \n\t" |
| 2399 | + " move.1 (%0)1++, %1 \n\t" |
| 2400 | + " .endr \n\t" |
| 2401 | + "2: \n\t" |
| 2402 | + |
| 2403 | + : "+a"(s), "+d"(c), "+d"(n), "=a"(aligned_start) |
| 2404 | + : |
| 2405 | + : "d15", "memory", "cc" |
| 2406 | + ); |
| 2407 | + |
| 2408 | + return s_ret; |
| 2409 | +} |
| 2410 | +libc_hidden_def(memset) |
| 2411 | --- /dev/null |
| 2412 | +++ b/libc/sysdeps/linux/ubicom32/Makefile |
| 2413 | @@ -0,0 +1,13 @@ |
| 2414 | +# Makefile for uClibc |
| 2415 | +# |
| 2416 | +# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| 2417 | +# |
| 2418 | +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 2419 | +# |
| 2420 | + |
| 2421 | +top_srcdir=../../../../ |
| 2422 | +top_builddir=../../../../ |
| 2423 | +all: objs |
| 2424 | +include $(top_builddir)Rules.mak |
| 2425 | +include Makefile.arch |
| 2426 | +include $(top_srcdir)Makerules |
| 2427 | --- /dev/null |
| 2428 | +++ b/libc/sysdeps/linux/ubicom32/Makefile.arch |
| 2429 | @@ -0,0 +1,28 @@ |
| 2430 | +# Makefile for uClibc |
| 2431 | +# |
| 2432 | +# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| 2433 | +# |
| 2434 | +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 2435 | +# |
| 2436 | + |
| 2437 | +#CSRC := \ |
| 2438 | +# brk.c \ |
| 2439 | +# crtbegin.c \ |
| 2440 | +# crtend.c |
| 2441 | +# |
| 2442 | +#SSRC := \ |
| 2443 | +# __longjmp.S \ |
| 2444 | +# bsd-_setjmp.S \ |
| 2445 | +# bsd-setjmp.S \ |
| 2446 | +# setjmp.S \ |
| 2447 | +# clone.S \ |
| 2448 | +# vfork.S |
| 2449 | + |
| 2450 | +CSRC := \ |
| 2451 | + syscall.c __syscall_error.c |
| 2452 | + |
| 2453 | +SSRC := \ |
| 2454 | + clone.S setjmp.S vfork.S |
| 2455 | + |
| 2456 | +ARCH_CFLAGS := $(CPU_CFLAGS-y) |
| 2457 | +include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch |
| 2458 | --- /dev/null |
| 2459 | +++ b/libc/sysdeps/linux/ubicom32/__syscall_error.c |
| 2460 | @@ -0,0 +1,11 @@ |
| 2461 | +#include <errno.h> |
| 2462 | +#include <features.h> |
| 2463 | + |
| 2464 | +/* This routine is jumped to by some of the syscall handlers, to stash |
| 2465 | + * an error number into errno. */ |
| 2466 | +int __syscall_error(int err_no) attribute_hidden; |
| 2467 | +int __syscall_error(int err_no) |
| 2468 | +{ |
| 2469 | + __set_errno(err_no); |
| 2470 | + return -1; |
| 2471 | +} |
| 2472 | --- /dev/null |
| 2473 | +++ b/libc/sysdeps/linux/ubicom32/bits/elf-fdpic.h |
| 2474 | @@ -0,0 +1,115 @@ |
| 2475 | +/* Copyright 2003, 2004 Free Software Foundation, Inc. |
| 2476 | +This file is part of the GNU C Library. |
| 2477 | + |
| 2478 | +The GNU C Library is free software; you can redistribute it and/or |
| 2479 | +modify it under the terms of the GNU Lesser General Public License as |
| 2480 | +published by the Free Software Foundation; either version 2.1 of the |
| 2481 | +License, or (at your option) any later version. |
| 2482 | + |
| 2483 | +In addition to the permissions in the GNU Lesser General Public |
| 2484 | +License, the Free Software Foundation gives you unlimited |
| 2485 | +permission to link the compiled version of this file with other |
| 2486 | +programs, and to distribute those programs without any restriction |
| 2487 | +coming from the use of this file. (The GNU Lesser General Public |
| 2488 | +License restrictions do apply in other respects; for example, they |
| 2489 | +cover modification of the file, and distribution when not linked |
| 2490 | +into another program.) |
| 2491 | + |
| 2492 | +The GNU C Library is distributed in the hope that it will be useful, |
| 2493 | +but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 2494 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 2495 | +Library General Public License for more details. |
| 2496 | + |
| 2497 | +You should have received a copy of the GNU Lesser General Public |
| 2498 | +License along with the GNU C Library; see the file COPYING.LIB. If |
| 2499 | +not, write to the Free Software Foundation, Inc., 675 Mass Ave, |
| 2500 | +Cambridge, MA 02139, USA. */ |
| 2501 | + |
| 2502 | +#ifndef _BITS_ELF_FDPIC_H |
| 2503 | +#define _BITS_ELF_FDPIC_H |
| 2504 | + |
| 2505 | +/* These data structures are described in the FDPIC ABI extension. |
| 2506 | + The kernel passes a process a memory map, such that for every LOAD |
| 2507 | + segment there is an elf32_fdpic_loadseg entry. A pointer to an |
| 2508 | + elf32_fdpic_loadmap is passed in d8 at start-up, and a pointer to |
| 2509 | + an additional such map is passed in d9 for the interpreter, when |
| 2510 | + there is one. */ |
| 2511 | + |
| 2512 | +#include <elf.h> |
| 2513 | + |
| 2514 | +/* This data structure represents a PT_LOAD segment. */ |
| 2515 | +struct elf32_fdpic_loadseg |
| 2516 | +{ |
| 2517 | + /* Core address to which the segment is mapped. */ |
| 2518 | + Elf32_Addr addr; |
| 2519 | + /* VMA recorded in the program header. */ |
| 2520 | + Elf32_Addr p_vaddr; |
| 2521 | + /* Size of this segment in memory. */ |
| 2522 | + Elf32_Word p_memsz; |
| 2523 | +}; |
| 2524 | + |
| 2525 | +struct elf32_fdpic_loadmap { |
| 2526 | + /* Protocol version number, must be zero. */ |
| 2527 | + Elf32_Half version; |
| 2528 | + /* Number of segments in this map. */ |
| 2529 | + Elf32_Half nsegs; |
| 2530 | + /* The actual memory map. */ |
| 2531 | + struct elf32_fdpic_loadseg segs[/*nsegs*/]; |
| 2532 | +}; |
| 2533 | + |
| 2534 | +struct elf32_fdpic_loadaddr { |
| 2535 | + struct elf32_fdpic_loadmap *map; |
| 2536 | + void *got_value; |
| 2537 | +}; |
| 2538 | + |
| 2539 | +/* Map a pointer's VMA to its corresponding address according to the |
| 2540 | + load map. */ |
| 2541 | +static __always_inline void * |
| 2542 | +__reloc_pointer (void *p, |
| 2543 | + const struct elf32_fdpic_loadmap *map) |
| 2544 | +{ |
| 2545 | + int c; |
| 2546 | + |
| 2547 | +#if 0 |
| 2548 | + if (map->version != 0) |
| 2549 | + /* Crash. */ |
| 2550 | + ((void(*)())0)(); |
| 2551 | +#endif |
| 2552 | + |
| 2553 | + /* No special provision is made for NULL. We don't want NULL |
| 2554 | + addresses to go through relocation, so they shouldn't be in |
| 2555 | + .rofixup sections, and, if they're present in dynamic |
| 2556 | + relocations, they shall be mapped to the NULL address without |
| 2557 | + undergoing relocations. */ |
| 2558 | + |
| 2559 | + for (c = 0; |
| 2560 | + /* Take advantage of the fact that the loadmap is ordered by |
| 2561 | + virtual addresses. In general there will only be 2 entries, |
| 2562 | + so it's not profitable to do a binary search. */ |
| 2563 | + c < map->nsegs && p >= (void*)map->segs[c].p_vaddr; |
| 2564 | + c++) |
| 2565 | + { |
| 2566 | + /* This should be computed as part of the pointer comparison |
| 2567 | + above, but we want to use the carry in the comparison, so we |
| 2568 | + can't convert it to an integer type beforehand. */ |
| 2569 | + unsigned long offset = p - (void*)map->segs[c].p_vaddr; |
| 2570 | + /* We only check for one-past-the-end for the last segment, |
| 2571 | + assumed to be the data segment, because other cases are |
| 2572 | + ambiguous in the absence of padding between segments, and |
| 2573 | + rofixup already serves as padding between text and data. |
| 2574 | + Unfortunately, unless we special-case the last segment, we |
| 2575 | + fail to relocate the _end symbol. */ |
| 2576 | + if (offset < map->segs[c].p_memsz |
| 2577 | + || (offset == map->segs[c].p_memsz && c + 1 == map->nsegs)) |
| 2578 | + return (char*)map->segs[c].addr + offset; |
| 2579 | + } |
| 2580 | + |
| 2581 | + /* We might want to crash instead. */ |
| 2582 | + return (void*)-1; |
| 2583 | +} |
| 2584 | + |
| 2585 | +# define __RELOC_POINTER(ptr, loadaddr) \ |
| 2586 | + (__reloc_pointer ((void*)(ptr), \ |
| 2587 | + (loadaddr).map)) |
| 2588 | + |
| 2589 | +#endif /* _BITS_ELF_FDPIC_H */ |
| 2590 | --- /dev/null |
| 2591 | +++ b/libc/sysdeps/linux/ubicom32/bits/endian.h |
| 2592 | @@ -0,0 +1,7 @@ |
| 2593 | +/* Ubicom32 is big-endian. */ |
| 2594 | + |
| 2595 | +#ifndef _ENDIAN_H |
| 2596 | +# error "Never use <bits/endian.h> directly; include <endian.h> instead." |
| 2597 | +#endif |
| 2598 | + |
| 2599 | +#define __BYTE_ORDER __BIG_ENDIAN |
| 2600 | --- /dev/null |
| 2601 | +++ b/libc/sysdeps/linux/ubicom32/bits/fcntl.h |
| 2602 | @@ -0,0 +1,226 @@ |
| 2603 | +/* O_*, F_*, FD_* bit values for Linux. |
| 2604 | + Copyright (C) 2000 Free Software Foundation, Inc. |
| 2605 | + This file is part of the GNU C Library. |
| 2606 | + |
| 2607 | + The GNU C Library is free software; you can redistribute it and/or |
| 2608 | + modify it under the terms of the GNU Lesser General Public |
| 2609 | + License as published by the Free Software Foundation; either |
| 2610 | + version 2.1 of the License, or (at your option) any later version. |
| 2611 | + |
| 2612 | + The GNU C Library is distributed in the hope that it will be useful, |
| 2613 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 2614 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 2615 | + Lesser General Public License for more details. |
| 2616 | + |
| 2617 | + You should have received a copy of the GNU Lesser General Public |
| 2618 | + License along with the GNU C Library; if not, write to the Free |
| 2619 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 2620 | + 02111-1307 USA. */ |
| 2621 | + |
| 2622 | +#ifndef _FCNTL_H |
| 2623 | +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." |
| 2624 | +#endif |
| 2625 | + |
| 2626 | + |
| 2627 | +#include <sys/types.h> |
| 2628 | +#ifdef __USE_GNU |
| 2629 | +# include <bits/uio.h> |
| 2630 | +#endif |
| 2631 | + |
| 2632 | +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files |
| 2633 | + located on an ext2 file system */ |
| 2634 | +#define O_ACCMODE 0003 |
| 2635 | +#define O_RDONLY 00 |
| 2636 | +#define O_WRONLY 01 |
| 2637 | +#define O_RDWR 02 |
| 2638 | +#define O_CREAT 0100 /* not fcntl */ |
| 2639 | +#define O_EXCL 0200 /* not fcntl */ |
| 2640 | +#define O_NOCTTY 0400 /* not fcntl */ |
| 2641 | +#define O_TRUNC 01000 /* not fcntl */ |
| 2642 | +#define O_APPEND 02000 |
| 2643 | +#define O_NONBLOCK 04000 |
| 2644 | +#define O_NDELAY O_NONBLOCK |
| 2645 | +#define O_SYNC 010000 |
| 2646 | +#define O_FSYNC O_SYNC |
| 2647 | +#define O_ASYNC 020000 |
| 2648 | + |
| 2649 | +#ifdef __USE_GNU |
| 2650 | +# define O_DIRECTORY 040000 /* Must be a directory. */ |
| 2651 | +# define O_NOFOLLOW 0100000 /* Do not follow links. */ |
| 2652 | +# define O_DIRECT 0200000 /* Direct disk access. */ |
| 2653 | +# define O_NOATIME 01000000 /* Do not set atime. */ |
| 2654 | +# define O_CLOEXEC 02000000 /* set close_on_exec */ |
| 2655 | +# define O_STREAMING 04000000 /* streaming access */ |
| 2656 | +#endif |
| 2657 | + |
| 2658 | +/* For now Linux has synchronisity options for data and read operations. |
| 2659 | + We define the symbols here but let them do the same as O_SYNC since |
| 2660 | + this is a superset. */ |
| 2661 | +#if defined __USE_POSIX199309 || defined __USE_UNIX98 |
| 2662 | +# define O_DSYNC O_SYNC /* Synchronize data. */ |
| 2663 | +# define O_RSYNC O_SYNC /* Synchronize read operations. */ |
| 2664 | +#endif |
| 2665 | + |
| 2666 | +#ifdef __USE_LARGEFILE64 |
| 2667 | +# define O_LARGEFILE 0400000 |
| 2668 | +#endif |
| 2669 | + |
| 2670 | +/* Values for the second argument to `fcntl'. */ |
| 2671 | +#define F_DUPFD 0 /* Duplicate file descriptor. */ |
| 2672 | +#define F_GETFD 1 /* Get file descriptor flags. */ |
| 2673 | +#define F_SETFD 2 /* Set file descriptor flags. */ |
| 2674 | +#define F_GETFL 3 /* Get file status flags. */ |
| 2675 | +#define F_SETFL 4 /* Set file status flags. */ |
| 2676 | +#ifndef __USE_FILE_OFFSET64 |
| 2677 | +# define F_GETLK 5 /* Get record locking info. */ |
| 2678 | +# define F_SETLK 6 /* Set record locking info (non-blocking). */ |
| 2679 | +# define F_SETLKW 7 /* Set record locking info (blocking). */ |
| 2680 | +#else |
| 2681 | +# define F_GETLK F_GETLK64 /* Get record locking info. */ |
| 2682 | +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ |
| 2683 | +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ |
| 2684 | +#endif |
| 2685 | +#define F_GETLK64 12 /* Get record locking info. */ |
| 2686 | +#define F_SETLK64 13 /* Set record locking info (non-blocking). */ |
| 2687 | +#define F_SETLKW64 14 /* Set record locking info (blocking). */ |
| 2688 | + |
| 2689 | +#if defined __USE_BSD || defined __USE_XOPEN2K |
| 2690 | +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ |
| 2691 | +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ |
| 2692 | +#endif |
| 2693 | + |
| 2694 | +#ifdef __USE_GNU |
| 2695 | +# define F_SETSIG 10 /* Set number of signal to be sent. */ |
| 2696 | +# define F_GETSIG 11 /* Get number of signal to be sent. */ |
| 2697 | +#endif |
| 2698 | + |
| 2699 | +#ifdef __USE_GNU |
| 2700 | +# define F_SETLEASE 1024 /* Set a lease. */ |
| 2701 | +# define F_GETLEASE 1025 /* Enquire what lease is active. */ |
| 2702 | +# define F_NOTIFY 1026 /* Request notfications on a directory. */ |
| 2703 | +#endif |
| 2704 | + |
| 2705 | +/* For F_[GET|SET]FL. */ |
| 2706 | +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ |
| 2707 | + |
| 2708 | +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ |
| 2709 | +#define F_RDLCK 0 /* Read lock. */ |
| 2710 | +#define F_WRLCK 1 /* Write lock. */ |
| 2711 | +#define F_UNLCK 2 /* Remove lock. */ |
| 2712 | + |
| 2713 | +/* For old implementation of bsd flock(). */ |
| 2714 | +#define F_EXLCK 4 /* or 3 */ |
| 2715 | +#define F_SHLCK 8 /* or 4 */ |
| 2716 | + |
| 2717 | +#ifdef __USE_BSD |
| 2718 | +/* Operations for bsd flock(), also used by the kernel implementation. */ |
| 2719 | +# define LOCK_SH 1 /* shared lock */ |
| 2720 | +# define LOCK_EX 2 /* exclusive lock */ |
| 2721 | +# define LOCK_NB 4 /* or'd with one of the above to prevent |
| 2722 | + blocking */ |
| 2723 | +# define LOCK_UN 8 /* remove lock */ |
| 2724 | +#endif |
| 2725 | + |
| 2726 | +#ifdef __USE_GNU |
| 2727 | +# define LOCK_MAND 32 /* This is a mandatory flock: */ |
| 2728 | +# define LOCK_READ 64 /* ... which allows concurrent read operations. */ |
| 2729 | +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */ |
| 2730 | +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */ |
| 2731 | +#endif |
| 2732 | + |
| 2733 | +#ifdef __USE_GNU |
| 2734 | +/* Types of directory notifications that may be requested with F_NOTIFY. */ |
| 2735 | +# define DN_ACCESS 0x00000001 /* File accessed. */ |
| 2736 | +# define DN_MODIFY 0x00000002 /* File modified. */ |
| 2737 | +# define DN_CREATE 0x00000004 /* File created. */ |
| 2738 | +# define DN_DELETE 0x00000008 /* File removed. */ |
| 2739 | +# define DN_RENAME 0x00000010 /* File renamed. */ |
| 2740 | +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */ |
| 2741 | +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ |
| 2742 | +#endif |
| 2743 | + |
| 2744 | +struct flock |
| 2745 | + { |
| 2746 | + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ |
| 2747 | + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ |
| 2748 | +#ifndef __USE_FILE_OFFSET64 |
| 2749 | + __off_t l_start; /* Offset where the lock begins. */ |
| 2750 | + __off_t l_len; /* Size of the locked area; zero means until EOF. */ |
| 2751 | +#else |
| 2752 | + __off64_t l_start; /* Offset where the lock begins. */ |
| 2753 | + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ |
| 2754 | +#endif |
| 2755 | + __pid_t l_pid; /* Process holding the lock. */ |
| 2756 | + }; |
| 2757 | + |
| 2758 | +#ifdef __USE_LARGEFILE64 |
| 2759 | +struct flock64 |
| 2760 | + { |
| 2761 | + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ |
| 2762 | + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ |
| 2763 | + __off64_t l_start; /* Offset where the lock begins. */ |
| 2764 | + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ |
| 2765 | + __pid_t l_pid; /* Process holding the lock. */ |
| 2766 | + }; |
| 2767 | +#endif |
| 2768 | + |
| 2769 | +/* Define some more compatibility macros to be backward compatible with |
| 2770 | + BSD systems which did not managed to hide these kernel macros. */ |
| 2771 | +#ifdef __USE_BSD |
| 2772 | +# define FAPPEND O_APPEND |
| 2773 | +# define FFSYNC O_FSYNC |
| 2774 | +# define FASYNC O_ASYNC |
| 2775 | +# define FNONBLOCK O_NONBLOCK |
| 2776 | +# define FNDELAY O_NDELAY |
| 2777 | +#endif /* Use BSD. */ |
| 2778 | + |
| 2779 | +/* Advise to `posix_fadvise'. */ |
| 2780 | +#ifdef __USE_XOPEN2K |
| 2781 | +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ |
| 2782 | +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ |
| 2783 | +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ |
| 2784 | +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ |
| 2785 | +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ |
| 2786 | +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ |
| 2787 | +#endif |
| 2788 | + |
| 2789 | +#ifdef __USE_GNU |
| 2790 | +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages |
| 2791 | + in the range before performing the |
| 2792 | + write. */ |
| 2793 | +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those |
| 2794 | + dirty pages in the range which are |
| 2795 | + not presently under writeback. */ |
| 2796 | +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in |
| 2797 | + the range after performing the |
| 2798 | + write. */ |
| 2799 | +#endif |
| 2800 | + |
| 2801 | +__BEGIN_DECLS |
| 2802 | + |
| 2803 | +#ifdef __USE_GNU |
| 2804 | + |
| 2805 | +/* Provide kernel hint to read ahead. */ |
| 2806 | +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count) |
| 2807 | + __THROW; |
| 2808 | + |
| 2809 | +/* Selective file content synch'ing. */ |
| 2810 | +extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to, |
| 2811 | + unsigned int __flags); |
| 2812 | + |
| 2813 | +/* Splice address range into a pipe. */ |
| 2814 | +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov, |
| 2815 | + size_t __count, unsigned int __flags); |
| 2816 | + |
| 2817 | +/* Splice two files together. */ |
| 2818 | +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout, |
| 2819 | + __off64_t *__offout, size_t __len, |
| 2820 | + unsigned int __flags); |
| 2821 | + |
| 2822 | +/* In-kernel implementation of tee for pipe buffers. */ |
| 2823 | +extern ssize_t tee (int __fdin, int __fdout, size_t __len, |
| 2824 | + unsigned int __flags); |
| 2825 | + |
| 2826 | +#endif |
| 2827 | + |
| 2828 | +__END_DECLS |
| 2829 | --- /dev/null |
| 2830 | +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_stat.h |
| 2831 | @@ -0,0 +1,55 @@ |
| 2832 | +#ifndef _BITS_STAT_STRUCT_H |
| 2833 | +#define _BITS_STAT_STRUCT_H |
| 2834 | + |
| 2835 | +#ifndef _LIBC |
| 2836 | +#error bits/kernel_stat.h is for internal uClibc use only! |
| 2837 | +#endif |
| 2838 | + |
| 2839 | +/* This file provides whatever this particular arch's kernel thinks |
| 2840 | + * struct kernel_stat should look like... It turns out each arch has a |
| 2841 | + * different opinion on the subject... */ |
| 2842 | + |
| 2843 | +struct kernel_stat { |
| 2844 | + unsigned short st_dev; |
| 2845 | + unsigned short __pad1; |
| 2846 | + unsigned long st_ino; |
| 2847 | + unsigned short st_mode; |
| 2848 | + unsigned short st_nlink; |
| 2849 | + unsigned short st_uid; |
| 2850 | + unsigned short st_gid; |
| 2851 | + unsigned short st_rdev; |
| 2852 | + unsigned short __pad2; |
| 2853 | + unsigned long st_size; |
| 2854 | + unsigned long st_blksize; |
| 2855 | + unsigned long st_blocks; |
| 2856 | + struct timespec st_atim; |
| 2857 | + struct timespec st_mtim; |
| 2858 | + struct timespec st_ctim; |
| 2859 | + unsigned long __unused4; |
| 2860 | + unsigned long __unused5; |
| 2861 | +}; |
| 2862 | + |
| 2863 | +struct kernel_stat64 { |
| 2864 | + unsigned char __pad0[6]; |
| 2865 | + unsigned short st_dev; |
| 2866 | + unsigned char __pad1[4]; |
| 2867 | +#define _HAVE_STAT64___ST_INO |
| 2868 | + unsigned long __st_ino; |
| 2869 | + unsigned int st_mode; |
| 2870 | + unsigned int st_nlink; |
| 2871 | + unsigned long st_uid; |
| 2872 | + unsigned long st_gid; |
| 2873 | + unsigned char __pad2[6]; |
| 2874 | + unsigned short st_rdev; |
| 2875 | + unsigned char __pad3[4]; |
| 2876 | + long long st_size; |
| 2877 | + unsigned long st_blksize; |
| 2878 | + unsigned long st_blocks; /* Number 512-byte blocks allocated. */ |
| 2879 | + unsigned long __pad4; /* future possible st_blocks high bits */ |
| 2880 | + struct timespec st_atim; |
| 2881 | + struct timespec st_mtim; |
| 2882 | + struct timespec st_ctim; |
| 2883 | + unsigned long long st_ino; |
| 2884 | +}; |
| 2885 | + |
| 2886 | +#endif /* _BITS_STAT_STRUCT_H */ |
| 2887 | --- /dev/null |
| 2888 | +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_types.h |
| 2889 | @@ -0,0 +1,44 @@ |
| 2890 | +/* Note that we use the exact same include guard #define names |
| 2891 | + * as asm/posix_types.h. This will avoid gratuitous conflicts |
| 2892 | + * with the posix_types.h kernel header, and will ensure that |
| 2893 | + * our private content, and not the kernel header, will win. |
| 2894 | + * -Erik |
| 2895 | + */ |
| 2896 | +#ifndef __ARCH_UBICOM32_POSIX_TYPES_H |
| 2897 | +#define __ARCH_UBICOM32_POSIX_TYPES_H |
| 2898 | + |
| 2899 | +typedef unsigned long __kernel_dev_t; |
| 2900 | +typedef unsigned long __kernel_ino_t; |
| 2901 | +typedef unsigned short __kernel_mode_t; |
| 2902 | +typedef unsigned short __kernel_nlink_t; |
| 2903 | +typedef long __kernel_off_t; |
| 2904 | +typedef int __kernel_pid_t; |
| 2905 | +typedef unsigned short __kernel_ipc_pid_t; |
| 2906 | +typedef unsigned short __kernel_uid_t; |
| 2907 | +typedef unsigned short __kernel_gid_t; |
| 2908 | +typedef unsigned int __kernel_size_t; |
| 2909 | +typedef int __kernel_ssize_t; |
| 2910 | +typedef int __kernel_ptrdiff_t; |
| 2911 | +typedef long __kernel_time_t; |
| 2912 | +typedef long __kernel_suseconds_t; |
| 2913 | +typedef long __kernel_clock_t; |
| 2914 | +typedef int __kernel_daddr_t; |
| 2915 | +typedef char * __kernel_caddr_t; |
| 2916 | +typedef unsigned short __kernel_uid16_t; |
| 2917 | +typedef unsigned short __kernel_gid16_t; |
| 2918 | +typedef unsigned int __kernel_uid32_t; |
| 2919 | +typedef unsigned int __kernel_gid32_t; |
| 2920 | +typedef unsigned short __kernel_old_uid_t; |
| 2921 | +typedef unsigned short __kernel_old_gid_t; |
| 2922 | +typedef unsigned short __kernel_old_dev_t; |
| 2923 | +typedef long long __kernel_loff_t; |
| 2924 | + |
| 2925 | +typedef struct { |
| 2926 | +#ifdef __USE_ALL |
| 2927 | + int val[2]; |
| 2928 | +#else |
| 2929 | + int __val[2]; |
| 2930 | +#endif |
| 2931 | +} __kernel_fsid_t; |
| 2932 | + |
| 2933 | +#endif /* __ARCH_UBICOM32_POSIX_TYPES_H */ |
| 2934 | --- /dev/null |
| 2935 | +++ b/libc/sysdeps/linux/ubicom32/bits/mman.h |
| 2936 | @@ -0,0 +1,103 @@ |
| 2937 | +/* Definitions for POSIX memory map interface. Linux/m68k version. |
| 2938 | + Copyright (C) 1997, 2000, 2003, 2005 Free Software Foundation, Inc. |
| 2939 | + This file is part of the GNU C Library. |
| 2940 | + |
| 2941 | + The GNU C Library is free software; you can redistribute it and/or |
| 2942 | + modify it under the terms of the GNU Lesser General Public |
| 2943 | + License as published by the Free Software Foundation; either |
| 2944 | + version 2.1 of the License, or (at your option) any later version. |
| 2945 | + |
| 2946 | + The GNU C Library is distributed in the hope that it will be useful, |
| 2947 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 2948 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 2949 | + Lesser General Public License for more details. |
| 2950 | + |
| 2951 | + You should have received a copy of the GNU Lesser General Public |
| 2952 | + License along with the GNU C Library; if not, write to the Free |
| 2953 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 2954 | + 02111-1307 USA. */ |
| 2955 | + |
| 2956 | +#ifndef _SYS_MMAN_H |
| 2957 | +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." |
| 2958 | +#endif |
| 2959 | + |
| 2960 | +/* The following definitions basically come from the kernel headers. |
| 2961 | + But the kernel header is not namespace clean. */ |
| 2962 | + |
| 2963 | + |
| 2964 | +/* Protections are chosen from these bits, OR'd together. The |
| 2965 | + implementation does not necessarily support PROT_EXEC or PROT_WRITE |
| 2966 | + without PROT_READ. The only guarantees are that no writing will be |
| 2967 | + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ |
| 2968 | + |
| 2969 | +#define PROT_READ 0x1 /* Page can be read. */ |
| 2970 | +#define PROT_WRITE 0x2 /* Page can be written. */ |
| 2971 | +#define PROT_EXEC 0x4 /* Page can be executed. */ |
| 2972 | +#define PROT_NONE 0x0 /* Page can not be accessed. */ |
| 2973 | +#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of |
| 2974 | + growsdown vma (mprotect only). */ |
| 2975 | +#define PROT_GROWSUP 0x02000000 /* Extend change to start of |
| 2976 | + growsup vma (mprotect only). */ |
| 2977 | + |
| 2978 | +/* Sharing types (must choose one and only one of these). */ |
| 2979 | +#define MAP_SHARED 0x01 /* Share changes. */ |
| 2980 | +#define MAP_PRIVATE 0x02 /* Changes are private. */ |
| 2981 | +#ifdef __USE_MISC |
| 2982 | +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ |
| 2983 | +#endif |
| 2984 | + |
| 2985 | +/* Other flags. */ |
| 2986 | +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ |
| 2987 | +#ifdef __USE_MISC |
| 2988 | +# define MAP_FILE 0 |
| 2989 | +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ |
| 2990 | +# define MAP_ANON MAP_ANONYMOUS |
| 2991 | +#endif |
| 2992 | + |
| 2993 | +/* These are Linux-specific. */ |
| 2994 | +#ifdef __USE_MISC |
| 2995 | +# define MAP_GROWSDOWN 0x0000100 /* Stack-like segment. */ |
| 2996 | +# define MAP_DENYWRITE 0x0000800 /* ETXTBSY */ |
| 2997 | +# define MAP_EXECUTABLE 0x0001000 /* Mark it as an executable. */ |
| 2998 | +# define MAP_LOCKED 0x0002000 /* Lock the mapping. */ |
| 2999 | +# define MAP_NORESERVE 0x0004000 /* Don't check for reservations. */ |
| 3000 | +# define MAP_POPULATE 0x0008000 /* Populate (prefault) pagetables. */ |
| 3001 | +# define MAP_NONBLOCK 0x0010000 /* Do not block on IO. */ |
| 3002 | +# define MAP_UNINITIALIZE 0x4000000 /* For anonymous mmap, memory could be uninitialized. */ |
| 3003 | +#endif |
| 3004 | + |
| 3005 | +/* Flags to `msync'. */ |
| 3006 | +#define MS_ASYNC 1 /* Sync memory asynchronously. */ |
| 3007 | +#define MS_SYNC 4 /* Synchronous memory sync. */ |
| 3008 | +#define MS_INVALIDATE 2 /* Invalidate the caches. */ |
| 3009 | + |
| 3010 | +/* Flags for `mlockall'. */ |
| 3011 | +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ |
| 3012 | +#define MCL_FUTURE 2 /* Lock all additions to address |
| 3013 | + space. */ |
| 3014 | + |
| 3015 | +/* Flags for `mremap'. */ |
| 3016 | +#ifdef __USE_GNU |
| 3017 | +# define MREMAP_MAYMOVE 1 |
| 3018 | +# define MREMAP_FIXED 2 |
| 3019 | +#endif |
| 3020 | + |
| 3021 | +/* Advice to `madvise'. */ |
| 3022 | +#ifdef __USE_BSD |
| 3023 | +# define MADV_NORMAL 0 /* No further special treatment. */ |
| 3024 | +# define MADV_RANDOM 1 /* Expect random page references. */ |
| 3025 | +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */ |
| 3026 | +# define MADV_WILLNEED 3 /* Will need these pages. */ |
| 3027 | +# define MADV_DONTNEED 4 /* Don't need these pages. */ |
| 3028 | +# define MADV_DONTFORK 10 /* Do not inherit across fork. */ |
| 3029 | +# define MADV_DOFORK 11 /* Do inherit across fork. */ |
| 3030 | +#endif |
| 3031 | + |
| 3032 | +/* The POSIX people had to invent similar names for the same things. */ |
| 3033 | +#ifdef __USE_XOPEN2K |
| 3034 | +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ |
| 3035 | +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ |
| 3036 | +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ |
| 3037 | +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ |
| 3038 | +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ |
| 3039 | +#endif |
| 3040 | --- /dev/null |
| 3041 | +++ b/libc/sysdeps/linux/ubicom32/bits/setjmp.h |
| 3042 | @@ -0,0 +1,52 @@ |
| 3043 | +/* Define the machine-dependent type `jmp_buf'. Ubicom32 version. |
| 3044 | + Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc. |
| 3045 | + This file is part of the GNU C Library. |
| 3046 | + |
| 3047 | + The GNU C Library is free software; you can redistribute it and/or |
| 3048 | + modify it under the terms of the GNU Lesser General Public |
| 3049 | + License as published by the Free Software Foundation; either |
| 3050 | + version 2.1 of the License, or (at your option) any later version. |
| 3051 | + |
| 3052 | + The GNU C Library is distributed in the hope that it will be useful, |
| 3053 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3054 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3055 | + Lesser General Public License for more details. |
| 3056 | + |
| 3057 | + You should have received a copy of the GNU Lesser General Public |
| 3058 | + License along with the GNU C Library; if not, write to the Free |
| 3059 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 3060 | + 02111-1307 USA. */ |
| 3061 | + |
| 3062 | +#ifndef _BITS_SETJMP_H |
| 3063 | +#define _BITS_SETJMP_H 1 |
| 3064 | + |
| 3065 | +#if !defined _SETJMP_H && !defined _PTHREAD_H |
| 3066 | +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." |
| 3067 | +#endif |
| 3068 | + |
| 3069 | +#ifndef _ASM |
| 3070 | +/* |
| 3071 | + * This is the structure where we are going to save D10-D13, A0, A1, A2, A5, A6 and SP(A7). |
| 3072 | + * A5 is the return address. Call to setjmp will save these. Call to longjmp will return |
| 3073 | + * Control to the address in A5. |
| 3074 | + */ |
| 3075 | +typedef struct setjmp_save_struct { |
| 3076 | + unsigned long d10; /* D10 */ |
| 3077 | + unsigned long d11; /* D11 */ |
| 3078 | + unsigned long d12; /* D12 */ |
| 3079 | + unsigned long d13; /* D13 */ |
| 3080 | + unsigned long a1; /* A1 */ |
| 3081 | + unsigned long a2; /* A2 */ |
| 3082 | + unsigned long a5; /* A5 return address. */ |
| 3083 | + unsigned long a6; /* A6 */ |
| 3084 | + unsigned long sp; /* A7 stack pointer. */ |
| 3085 | +} __jmp_buf[1]; |
| 3086 | + |
| 3087 | +#endif |
| 3088 | + |
| 3089 | +/* Test if longjmp to JMPBUF would unwind the frame |
| 3090 | + containing a local variable at ADDRESS. */ |
| 3091 | +#define _JMPBUF_UNWINDS(jmpbuf, address) \ |
| 3092 | + ((void *) (address) < (void*)(jmpbuf)->sp) |
| 3093 | + |
| 3094 | +#endif /* bits/setjmp.h */ |
| 3095 | --- /dev/null |
| 3096 | +++ b/libc/sysdeps/linux/ubicom32/bits/stackinfo.h |
| 3097 | @@ -0,0 +1,28 @@ |
| 3098 | +/* Copyright (C) 1999 Free Software Foundation, Inc. |
| 3099 | + This file is part of the GNU C Library. |
| 3100 | + |
| 3101 | + The GNU C Library is free software; you can redistribute it and/or |
| 3102 | + modify it under the terms of the GNU Lesser General Public |
| 3103 | + License as published by the Free Software Foundation; either |
| 3104 | + version 2.1 of the License, or (at your option) any later version. |
| 3105 | + |
| 3106 | + The GNU C Library is distributed in the hope that it will be useful, |
| 3107 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3108 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3109 | + Lesser General Public License for more details. |
| 3110 | + |
| 3111 | + You should have received a copy of the GNU Lesser General Public |
| 3112 | + License along with the GNU C Library; if not, write to the Free |
| 3113 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 3114 | + 02111-1307 USA. */ |
| 3115 | + |
| 3116 | +/* This file contains a bit of information about the stack allocation |
| 3117 | + of the processor. */ |
| 3118 | + |
| 3119 | +#ifndef _STACKINFO_H |
| 3120 | +#define _STACKINFO_H 1 |
| 3121 | + |
| 3122 | +/* On Ubicom32 the stack grows down. */ |
| 3123 | +#define _STACK_GROWS_DOWN 1 |
| 3124 | + |
| 3125 | +#endif /* stackinfo.h */ |
| 3126 | --- /dev/null |
| 3127 | +++ b/libc/sysdeps/linux/ubicom32/bits/syscalls.h |
| 3128 | @@ -0,0 +1,81 @@ |
| 3129 | +#ifndef _BITS_SYSCALLS_H |
| 3130 | +#define _BITS_SYSCALLS_H |
| 3131 | +#ifndef _SYSCALL_H |
| 3132 | +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." |
| 3133 | +#endif |
| 3134 | + |
| 3135 | +/* m68k headers does stupid stuff with __NR_iopl / __NR_vm86: |
| 3136 | + * #define __NR_iopl not supported |
| 3137 | + * #define __NR_vm86 not supported |
| 3138 | + */ |
| 3139 | +#undef __NR_iopl |
| 3140 | +#undef __NR_vm86 |
| 3141 | + |
| 3142 | +#ifndef __ASSEMBLER__ |
| 3143 | + |
| 3144 | +#include <errno.h> |
| 3145 | + |
| 3146 | +/* Linux takes system call arguments in registers: |
| 3147 | + |
| 3148 | + syscall number %d8 |
| 3149 | + arg 1 %d0 |
| 3150 | + arg 2 %d1 |
| 3151 | + arg 3 %d2 |
| 3152 | + arg 4 %d3 |
| 3153 | + arg 5 %d4 |
| 3154 | + arg 6 %d5 |
| 3155 | +*/ |
| 3156 | + |
| 3157 | +#define __loadargs_0(name, dummy) \ |
| 3158 | + d8 = (long int)name |
| 3159 | + |
| 3160 | +#define __loadargs_1(name, __arg1) \ |
| 3161 | + __loadargs_0(name, 0); \ |
| 3162 | + d0_retval = (long int) __arg1 |
| 3163 | + |
| 3164 | +#define __loadargs_2(name, __arg1, __arg2) \ |
| 3165 | + __loadargs_1(name, __arg1); \ |
| 3166 | + d1 = (long int) __arg2 |
| 3167 | + |
| 3168 | +#define __loadargs_3(name, __arg1, __arg2, __arg3) \ |
| 3169 | + __loadargs_2(name, __arg1, __arg2); \ |
| 3170 | + d2 = (long int) __arg3 |
| 3171 | + |
| 3172 | +#define __loadargs_4(name, __arg1, __arg2, __arg3, __arg4) \ |
| 3173 | + __loadargs_3(name, __arg1, __arg2, __arg3); \ |
| 3174 | + d3 = (long int)__arg4 |
| 3175 | + |
| 3176 | +#define __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \ |
| 3177 | + __loadargs_4(name, __arg1, __arg2, __arg3, __arg4); \ |
| 3178 | + d4 = (long int)__arg5 |
| 3179 | + |
| 3180 | +#define __loadargs_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \ |
| 3181 | + __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \ |
| 3182 | + d5 = (long int)__arg6 |
| 3183 | + |
| 3184 | +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ |
| 3185 | +({ \ |
| 3186 | + register long int d0_retval __asm__ ("d0"); \ |
| 3187 | + register long int d1 __asm__ ("d1"); \ |
| 3188 | + register long int d2 __asm__ ("d2"); \ |
| 3189 | + register long int d3 __asm__ ("d3"); \ |
| 3190 | + register long int d4 __asm__ ("d4"); \ |
| 3191 | + register long int d5 __asm__ ("d5"); \ |
| 3192 | + register long int d8 __asm__ ("d8"); \ |
| 3193 | + __loadargs_##nr (name, args); \ |
| 3194 | + __asm__ __volatile__ ( \ |
| 3195 | + " moveai a5, #%%hi(0x40400000)\n\t" \ |
| 3196 | + " calli a5, 16(a5)\n\t" \ |
| 3197 | + : "+r" (d0_retval), "+r" (d1), "+r" (d2), "+r" (d3), \ |
| 3198 | + "+r" (d4), "+r" (d5), "+r" (d8) : \ |
| 3199 | + : "cc", "memory", \ |
| 3200 | + "acc0_lo", "acc0_hi", "acc1_lo", "acc1_hi", \ |
| 3201 | + "source3", \ |
| 3202 | + "a0", "a3", "a4", "a5", \ |
| 3203 | + "d6", "d7", "d9", "d14", "d15" \ |
| 3204 | + ); \ |
| 3205 | + d0_retval; \ |
| 3206 | +}) |
| 3207 | + |
| 3208 | +#endif /* __ASSEMBLER__ */ |
| 3209 | +#endif /* _BITS_SYSCALLS_H */ |
| 3210 | --- /dev/null |
| 3211 | +++ b/libc/sysdeps/linux/ubicom32/bits/uClibc_arch_features.h |
| 3212 | @@ -0,0 +1,45 @@ |
| 3213 | +/* |
| 3214 | + * Track misc arch-specific features that aren't config options |
| 3215 | + */ |
| 3216 | + |
| 3217 | +#ifndef _BITS_UCLIBC_ARCH_FEATURES_H |
| 3218 | +#define _BITS_UCLIBC_ARCH_FEATURES_H |
| 3219 | + |
| 3220 | +/* instruction used when calling abort() to kill yourself */ |
| 3221 | +/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/ |
| 3222 | +#undef __UCLIBC_ABORT_INSTRUCTION__ |
| 3223 | + |
| 3224 | +/* can your target use syscall6() for mmap ? */ |
| 3225 | +#undef __UCLIBC_MMAP_HAS_6_ARGS__ |
| 3226 | + |
| 3227 | +/* does your target use syscall4() for truncate64 ? (32bit arches only) */ |
| 3228 | +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__ |
| 3229 | + |
| 3230 | +/* does your target have a broken create_module() ? */ |
| 3231 | +#undef __UCLIBC_BROKEN_CREATE_MODULE__ |
| 3232 | + |
| 3233 | +/* does your target have to worry about older [gs]etrlimit() ? */ |
| 3234 | +#undef __UCLIBC_HANDLE_OLDER_RLIMIT__ |
| 3235 | + |
| 3236 | +/* does your target prefix all symbols with an _ ? */ |
| 3237 | +#define __UCLIBC_NO_UNDERSCORES__ |
| 3238 | + |
| 3239 | +/* does your target have an asm .set ? */ |
| 3240 | +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ |
| 3241 | + |
| 3242 | +/* define if target doesn't like .global */ |
| 3243 | +#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ |
| 3244 | + |
| 3245 | +/* define if target supports .weak */ |
| 3246 | +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ |
| 3247 | + |
| 3248 | +/* define if target supports .weakext */ |
| 3249 | +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ |
| 3250 | + |
| 3251 | +/* needed probably only for ppc64 */ |
| 3252 | +#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__ |
| 3253 | + |
| 3254 | +/* define if target supports IEEE signed zero floats */ |
| 3255 | +#define __UCLIBC_HAVE_SIGNED_ZERO__ |
| 3256 | + |
| 3257 | +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ |
| 3258 | --- /dev/null |
| 3259 | +++ b/libc/sysdeps/linux/ubicom32/bits/wordsize.h |
| 3260 | @@ -0,0 +1,19 @@ |
| 3261 | +/* Copyright (C) 1999 Free Software Foundation, Inc. |
| 3262 | + This file is part of the GNU C Library. |
| 3263 | + |
| 3264 | + The GNU C Library is free software; you can redistribute it and/or |
| 3265 | + modify it under the terms of the GNU Lesser General Public |
| 3266 | + License as published by the Free Software Foundation; either |
| 3267 | + version 2.1 of the License, or (at your option) any later version. |
| 3268 | + |
| 3269 | + The GNU C Library is distributed in the hope that it will be useful, |
| 3270 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3271 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3272 | + Lesser General Public License for more details. |
| 3273 | + |
| 3274 | + You should have received a copy of the GNU Lesser General Public |
| 3275 | + License along with the GNU C Library; if not, write to the Free |
| 3276 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 3277 | + 02111-1307 USA. */ |
| 3278 | + |
| 3279 | +#define __WORDSIZE 32 |
| 3280 | --- /dev/null |
| 3281 | +++ b/libc/sysdeps/linux/ubicom32/clone.S |
| 3282 | @@ -0,0 +1,71 @@ |
| 3283 | +#include <sys/syscall.h> |
| 3284 | + |
| 3285 | + .global __syscall_error |
| 3286 | + |
| 3287 | +/* int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ |
| 3288 | + .text |
| 3289 | + .type clone,@function |
| 3290 | + .global clone |
| 3291 | +clone: |
| 3292 | + /* Sanity check arguments. */ |
| 3293 | + sub.4 #0, #0, d0 /* Test if fn is zero. */ |
| 3294 | + jmpeq.f 1f /* arg bad */ |
| 3295 | + sub.4 #0, #0, d1 /* Test if child_stack is zero. */ |
| 3296 | + jmpeq.f 1f /* arg bad */ |
| 3297 | + |
| 3298 | + /* Set up child_stack frame.. arg and fn */ |
| 3299 | + move.4 a3, d1 |
| 3300 | + move.4 -4(a3)++, d3 /* push 'arg' to child stack */ |
| 3301 | + move.4 -4(a3)++, d0 /* push fn to child stack, this will become a5 |
| 3302 | + * on new child */ |
| 3303 | + move.4 d1, a3 |
| 3304 | + move.4 -4(sp)++, a5 /* push a5 to our stack */ |
| 3305 | + |
| 3306 | + /* |
| 3307 | + * The syscall clone is clone(int flags, void *child_stack) so we set |
| 3308 | + * that up now |
| 3309 | + */ |
| 3310 | + move.4 d0, d2 /* Move flags to d0 */ |
| 3311 | + |
| 3312 | + /* Do Clone syscall */ |
| 3313 | + movei d8, #__NR_clone |
| 3314 | + moveai a5, #%hi(0x40400000) |
| 3315 | + calli a5, 0x10(a5) |
| 3316 | + move.4 a5, (sp)4++ /* pop a5 from stack */ |
| 3317 | + |
| 3318 | + /* Clone Complete */ |
| 3319 | + cmpi d0, #0 /* Test if d0 is less than zero. If it is we |
| 3320 | + * return the error */ |
| 3321 | + jmplt.f 2f /* If return is less than we had an error */ |
| 3322 | + jmpeq.f 3f /* If return is 0 we are in the clone, jump to |
| 3323 | + * thread start */ |
| 3324 | + ret a5 /* d0 is pid */ |
| 3325 | + |
| 3326 | + /* Invalid Value */ |
| 3327 | +1: movei d0, #-22 /* EINVAL */ |
| 3328 | + |
| 3329 | + /* Call syscall Error */ |
| 3330 | +2: sub.4 d0, #0, d0 /* d0 = -d0 */ |
| 3331 | +#if defined(__UBICOM32_FDPIC__) |
| 3332 | + call a3, __syscall_error |
| 3333 | +#else |
| 3334 | + moveai a3, #%hi(__syscall_error) |
| 3335 | + calli a3, %lo(__syscall_error)(a3) |
| 3336 | +#endif |
| 3337 | + /* Child Thread Start */ |
| 3338 | +3: |
| 3339 | +#if defined(__UBICOM32_FDPIC__) |
| 3340 | + /* a5 actually contains a function descriptor for fdpic */ |
| 3341 | + move.4 a0, 4(a5) /* set GOT for this function */ |
| 3342 | + move.4 a5, 0(a5) /* get address of entry point */ |
| 3343 | +#endif |
| 3344 | + move.4 d0, (sp)4++ /* pop 'arg' to stack */ |
| 3345 | + calli a5, 0(a5) |
| 3346 | + movei d8, #__NR_exit |
| 3347 | + moveai a3, #%hi(0x40400000) |
| 3348 | + calli a3, 0x10(a3) |
| 3349 | + |
| 3350 | + .size clone, . - clone |
| 3351 | + .global __GI_clone |
| 3352 | + .hidden __GI_clone |
| 3353 | + .set __GI_clone,clone |
| 3354 | --- /dev/null |
| 3355 | +++ b/libc/sysdeps/linux/ubicom32/crt1.S |
| 3356 | @@ -0,0 +1,179 @@ |
| 3357 | +/* Startup code compliant to the ELF m68k ABI. |
| 3358 | + Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc. |
| 3359 | + This file is part of the GNU C Library. |
| 3360 | + |
| 3361 | + The GNU C Library is free software; you can redistribute it and/or |
| 3362 | + modify it under the terms of the GNU Lesser General Public |
| 3363 | + License as published by the Free Software Foundation; either |
| 3364 | + version 2.1 of the License, or (at your option) any later version. |
| 3365 | + |
| 3366 | + In addition to the permissions in the GNU Lesser General Public |
| 3367 | + License, the Free Software Foundation gives you unlimited |
| 3368 | + permission to link the compiled version of this file with other |
| 3369 | + programs, and to distribute those programs without any restriction |
| 3370 | + coming from the use of this file. (The GNU Lesser General Public |
| 3371 | + License restrictions do apply in other respects; for example, they |
| 3372 | + cover modification of the file, and distribution when not linked |
| 3373 | + into another program.) |
| 3374 | + |
| 3375 | + Note that people who make modified versions of this file are not |
| 3376 | + obligated to grant this special exception for their modified |
| 3377 | + versions; it is their choice whether to do so. The GNU Lesser |
| 3378 | + General Public License gives permission to release a modified |
| 3379 | + version without this exception; this exception also makes it |
| 3380 | + possible to release a modified version which carries forward this |
| 3381 | + exception. |
| 3382 | + |
| 3383 | + The GNU C Library is distributed in the hope that it will be useful, |
| 3384 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3385 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3386 | + Lesser General Public License for more details. |
| 3387 | + |
| 3388 | + You should have received a copy of the GNU Lesser General Public |
| 3389 | + License along with the GNU C Library; if not, write to the Free |
| 3390 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 3391 | + 02111-1307 USA. */ |
| 3392 | + |
| 3393 | +#include <features.h> |
| 3394 | + |
| 3395 | +/* This is the canonical entry point, usually the first thing in the text |
| 3396 | + segment. The SVR4/m68k ABI says that when the entry point runs, |
| 3397 | + most registers' values are unspecified, except for: |
| 3398 | + |
| 3399 | + %a1 Contains a function pointer to be registered with `atexit'. |
| 3400 | + This is how the dynamic linker arranges to have DT_FINI |
| 3401 | + functions called for shared libraries that have been loaded |
| 3402 | + before this code runs. |
| 3403 | + |
| 3404 | + %sp The stack contains the arguments and environment: |
| 3405 | + 0(%sp) argc |
| 3406 | + 4(%sp) argv[0] |
| 3407 | + ... |
| 3408 | + (4*argc)(%sp) NULL |
| 3409 | + (4*(argc+1))(%sp) envp[0] |
| 3410 | + ... |
| 3411 | + NULL |
| 3412 | + |
| 3413 | + The uclinux conventions are different. %a1 is not defined on entry |
| 3414 | + and the stack is laid out as follows: |
| 3415 | + |
| 3416 | + 0(%sp) argc |
| 3417 | + 4(%sp) argv |
| 3418 | + 8(%sp) envp |
| 3419 | +*/ |
| 3420 | + |
| 3421 | + |
| 3422 | + .text |
| 3423 | + .type main,@function |
| 3424 | + .type _init,%function |
| 3425 | + .type _fini,%function |
| 3426 | +#ifndef __UCLIBC_CTOR_DTOR__ |
| 3427 | + .weak _init |
| 3428 | + .weak _fini |
| 3429 | +#endif |
| 3430 | + .globl _start |
| 3431 | + .global __uClibc_main; |
| 3432 | + .type __uClibc_main,@function; |
| 3433 | + .type _start,@function |
| 3434 | +_start: |
| 3435 | + |
| 3436 | +#if defined(__UBICOM32_FDPIC__) && !defined(L_Scrt1) |
| 3437 | + /* P0 contains a pointer to the program's load map. */ |
| 3438 | + call a3, .Lcall; |
| 3439 | +.Lcall: |
| 3440 | + move.4 d0, d1 ; load exec_map_addr |
| 3441 | + moveai a4, #%hi(.Lcall) |
| 3442 | + lea.1 d15, %lo(.Lcall)(a4) |
| 3443 | + sub.4 d15, a3, d15 ; difference between .Lcall and actual address of .Lcall |
| 3444 | + moveai a3, #%hi(__ROFIXUP_LIST__) |
| 3445 | + lea.1 d1, %lo(__ROFIXUP_LIST__)(a3) |
| 3446 | + moveai a3, #%hi(__ROFIXUP_END__) |
| 3447 | + lea.1 d2, %lo(__ROFIXUP_END__)(a3) |
| 3448 | + add.4 d1, d1, d15 |
| 3449 | + add.4 d2, d2, d15 |
| 3450 | + call a5, __self_reloc ; returns GOT in d0 |
| 3451 | + move.4 a0, d0 ; set GOT |
| 3452 | +#endif |
| 3453 | + |
| 3454 | +/* |
| 3455 | + all this is setup to make the following call. |
| 3456 | + |
| 3457 | + void __uClibc_main( |
| 3458 | + d0 - int (*main)(int, char **, char **), |
| 3459 | + d1 - int argc, (d1) |
| 3460 | + d2 - char **argv, |
| 3461 | + d3 - void (*app_init)(void), |
| 3462 | + d4 - void (*app_fini)(void), |
| 3463 | + d5 - void (*rtld_fini)(void), |
| 3464 | + d6 - void *stack_end |
| 3465 | + ); |
| 3466 | + */ |
| 3467 | + |
| 3468 | + /* |
| 3469 | + * Load pointer to main into d0 |
| 3470 | + */ |
| 3471 | +#ifdef __UBICOM32_FDPIC__ |
| 3472 | + movei d0, #%got_funcdesc_lo(main) |
| 3473 | + move.4 d0, (a0, d0) |
| 3474 | +#else |
| 3475 | + moveai a3, #%hi(main) |
| 3476 | + lea.1 d0, %lo(main)(a3) |
| 3477 | +#endif |
| 3478 | + |
| 3479 | + /* |
| 3480 | + * Grab the environment stuff from stack and set up d1, d2 with it. |
| 3481 | + */ |
| 3482 | + move.4 d1, (sp) |
| 3483 | +#ifdef __UBICOM32_FDPIC__ |
| 3484 | + /* For FDPIC the calling convention is different than flat */ |
| 3485 | + lea.1 d2, 4(sp) |
| 3486 | +#else |
| 3487 | + move.4 d2, 4(sp) |
| 3488 | +#endif |
| 3489 | + |
| 3490 | +#ifdef __UCLIBC_CTOR_DTOR__ |
| 3491 | + /* |
| 3492 | + * Load pointer to _init into d3 |
| 3493 | + */ |
| 3494 | +#ifdef __UBICOM32_FDPIC__ |
| 3495 | + movei d3, #%got_funcdesc_lo(_init) |
| 3496 | + move.4 d3, (a0, d3) |
| 3497 | +#else |
| 3498 | + moveai a3, #%hi(_init) |
| 3499 | + lea.1 d3, %lo(_init)(a3) |
| 3500 | +#endif |
| 3501 | + |
| 3502 | + /* |
| 3503 | + * Load pointer to _fini into d4 |
| 3504 | + */ |
| 3505 | +#ifdef __UBICOM32_FDPIC__ |
| 3506 | + movei d4, #%got_funcdesc_lo(_fini) |
| 3507 | + move.4 d4, (a0, d4) |
| 3508 | +#else |
| 3509 | + moveai a3, #%hi(_fini) |
| 3510 | + lea.1 d4, %lo(_fini)(a3) |
| 3511 | +#endif |
| 3512 | + |
| 3513 | +#else /* !__UCLIBC_CTOR_DTOR__ */ |
| 3514 | + move.4 d3, #0 ; _init |
| 3515 | + move.4 d4, #0 ; _fini |
| 3516 | +#endif |
| 3517 | + |
| 3518 | +#ifdef __UBICOM32_FDPIC__ |
| 3519 | + move.4 d5, a1 ; ldso _fini funcdesc (see dl-startup.h) |
| 3520 | +#else |
| 3521 | + movei d5, #0 ; rtld_fini (not used) |
| 3522 | +#endif |
| 3523 | + |
| 3524 | + move.4 d6, sp ; Stack End. |
| 3525 | + |
| 3526 | + /* Call the user's main function, and exit with its value. But |
| 3527 | + let the libc call main. */ |
| 3528 | +#ifdef __UBICOM32_FDPIC__ |
| 3529 | + call a5, __uClibc_main |
| 3530 | +#else |
| 3531 | + moveai a5, #%hi(__uClibc_main) |
| 3532 | + calli a5, %lo(__uClibc_main)(a5) |
| 3533 | +#endif |
| 3534 | + |
| 3535 | + bkpt #-1 ; Crash if somehow `exit' does return. |
| 3536 | --- /dev/null |
| 3537 | +++ b/libc/sysdeps/linux/ubicom32/crti.S |
| 3538 | @@ -0,0 +1,54 @@ |
| 3539 | +/* Specialized code needed to support construction and destruction of |
| 3540 | + file-scope objects in C++ and Java code, and to support exception handling. |
| 3541 | + Copyright (C) 1999 Free Software Foundation, Inc. |
| 3542 | + Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca). |
| 3543 | + |
| 3544 | +This file is part of GCC. |
| 3545 | + |
| 3546 | +GCC is free software; you can redistribute it and/or modify |
| 3547 | +it under the terms of the GNU General Public License as published by |
| 3548 | +the Free Software Foundation; either version 2, or (at your option) |
| 3549 | +any later version. |
| 3550 | + |
| 3551 | +GCC is distributed in the hope that it will be useful, |
| 3552 | +but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3553 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 3554 | +GNU General Public License for more details. |
| 3555 | + |
| 3556 | +You should have received a copy of the GNU General Public License |
| 3557 | +along with GCC; see the file COPYING. If not, write to |
| 3558 | +the Free Software Foundation, 59 Temple Place - Suite 330, |
| 3559 | +Boston, MA 02111-1307, USA. */ |
| 3560 | + |
| 3561 | +/* As a special exception, if you link this library with files |
| 3562 | + compiled with GCC to produce an executable, this does not cause |
| 3563 | + the resulting executable to be covered by the GNU General Public License. |
| 3564 | + This exception does not however invalidate any other reasons why |
| 3565 | + the executable file might be covered by the GNU General Public License. */ |
| 3566 | + |
| 3567 | +/* |
| 3568 | + * This file just supplies function prologues for the .init and .fini |
| 3569 | + * sections. It is linked in before crtbegin.o. |
| 3570 | + */ |
| 3571 | + .file "crti.o" |
| 3572 | + .ident "GNU C crti.o" |
| 3573 | + |
| 3574 | + .section .init |
| 3575 | + .align 2 |
| 3576 | + .globl _init |
| 3577 | + .type _init, @function |
| 3578 | +_init: |
| 3579 | + move.4 -4(sp)++, a5 |
| 3580 | +#ifdef __UBICOM32_FDPIC__ |
| 3581 | + move.4 -4(sp)++, a0 |
| 3582 | +#endif |
| 3583 | + |
| 3584 | + .section .fini |
| 3585 | + .align 2 |
| 3586 | + .globl _fini |
| 3587 | + .type _fini, @function |
| 3588 | +_fini: |
| 3589 | + move.4 -4(sp)++, a5 |
| 3590 | +#ifdef __UBICOM32_FDPIC__ |
| 3591 | + move.4 -4(sp)++, a0 |
| 3592 | +#endif |
| 3593 | --- /dev/null |
| 3594 | +++ b/libc/sysdeps/linux/ubicom32/crtn.S |
| 3595 | @@ -0,0 +1,47 @@ |
| 3596 | +/* Specialized code needed to support construction and destruction of |
| 3597 | + file-scope objects in C++ and Java code, and to support exception handling. |
| 3598 | + Copyright (C) 1999 Free Software Foundation, Inc. |
| 3599 | + Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca). |
| 3600 | + |
| 3601 | +This file is part of GCC. |
| 3602 | + |
| 3603 | +GCC is free software; you can redistribute it and/or modify |
| 3604 | +it under the terms of the GNU General Public License as published by |
| 3605 | +the Free Software Foundation; either version 2, or (at your option) |
| 3606 | +any later version. |
| 3607 | + |
| 3608 | +GCC is distributed in the hope that it will be useful, |
| 3609 | +but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3610 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 3611 | +GNU General Public License for more details. |
| 3612 | + |
| 3613 | +You should have received a copy of the GNU General Public License |
| 3614 | +along with GCC; see the file COPYING. If not, write to |
| 3615 | +the Free Software Foundation, 59 Temple Place - Suite 330, |
| 3616 | +Boston, MA 02111-1307, USA. */ |
| 3617 | + |
| 3618 | +/* As a special exception, if you link this library with files |
| 3619 | + compiled with GCC to produce an executable, this does not cause |
| 3620 | + the resulting executable to be covered by the GNU General Public License. |
| 3621 | + This exception does not however invalidate any other reasons why |
| 3622 | + the executable file might be covered by the GNU General Public License. */ |
| 3623 | + |
| 3624 | +/* |
| 3625 | + * This file supplies function epilogues for the .init and .fini sections. |
| 3626 | + * It is linked in after all other files. |
| 3627 | + */ |
| 3628 | + |
| 3629 | + .file "crtn.o" |
| 3630 | + .ident "GNU C crtn.o" |
| 3631 | + |
| 3632 | + .section .init |
| 3633 | +#ifdef __UBICOM32_FDPIC__ |
| 3634 | + move.4 a0, (sp)4++ |
| 3635 | +#endif |
| 3636 | + ret (sp)4++ |
| 3637 | + |
| 3638 | + .section .fini |
| 3639 | +#ifdef __UBICOM32_FDPIC__ |
| 3640 | + move.4 a0, (sp)4++ |
| 3641 | +#endif |
| 3642 | + ret (sp)4++ |
| 3643 | --- /dev/null |
| 3644 | +++ b/libc/sysdeps/linux/ubicom32/crtreloc.c |
| 3645 | @@ -0,0 +1,145 @@ |
| 3646 | +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. |
| 3647 | + written by Alexandre Oliva <aoliva@redhat.com> |
| 3648 | +This file is part of the GNU C Library. |
| 3649 | + |
| 3650 | +The GNU C Library is free software; you can redistribute it and/or |
| 3651 | +modify it under the terms of the GNU Lesser General Public License as |
| 3652 | +published by the Free Software Foundation; either version 2.1 of the |
| 3653 | +License, or (at your option) any later version. |
| 3654 | + |
| 3655 | +In addition to the permissions in the GNU Lesser General Public |
| 3656 | +License, the Free Software Foundation gives you unlimited |
| 3657 | +permission to link the compiled version of this file with other |
| 3658 | +programs, and to distribute those programs without any restriction |
| 3659 | +coming from the use of this file. (The GNU Lesser General Public |
| 3660 | +License restrictions do apply in other respects; for example, they |
| 3661 | +cover modification of the file, and distribution when not linked |
| 3662 | +into another program.) |
| 3663 | + |
| 3664 | +The GNU C Library is distributed in the hope that it will be useful, |
| 3665 | +but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3666 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3667 | +Library General Public License for more details. |
| 3668 | + |
| 3669 | +You should have received a copy of the GNU Lesser General Public |
| 3670 | +License along with the GNU C Library; see the file COPYING.LIB. If |
| 3671 | +not, write to the Free Software Foundation, Inc., 675 Mass Ave, |
| 3672 | +Cambridge, MA 02139, USA. */ |
| 3673 | + |
| 3674 | +#ifdef __UBICOM32_FDPIC__ |
| 3675 | + |
| 3676 | +#include <sys/types.h> |
| 3677 | +#include <link.h> |
| 3678 | + |
| 3679 | +/* This file is to be compiled into crt object files, to enable |
| 3680 | + executables to easily self-relocate. */ |
| 3681 | + |
| 3682 | +union word { |
| 3683 | + char c[4]; |
| 3684 | + void *v; |
| 3685 | +}; |
| 3686 | + |
| 3687 | +/* Compute the runtime address of pointer in the range [p,e), and then |
| 3688 | + map the pointer pointed by it. */ |
| 3689 | +static __always_inline void *** |
| 3690 | +reloc_range_indirect (void ***p, void ***e, |
| 3691 | + const struct elf32_fdpic_loadmap *map) |
| 3692 | +{ |
| 3693 | + while (p < e) |
| 3694 | + { |
| 3695 | + if (*p != (void **)-1) |
| 3696 | + { |
| 3697 | + void *ptr = __reloc_pointer (*p, map); |
| 3698 | + if (ptr != (void *)-1) |
| 3699 | + { |
| 3700 | + void *pt; |
| 3701 | + if ((long)ptr & 3) |
| 3702 | + { |
| 3703 | + unsigned char *c = ptr; |
| 3704 | + int i; |
| 3705 | + unsigned long v = 0; |
| 3706 | + for (i = 0; i < 4; i++) |
| 3707 | + v |= c[i] << 8 * i; |
| 3708 | + pt = (void *)v; |
| 3709 | + } |
| 3710 | + else |
| 3711 | + pt = *(void**)ptr; |
| 3712 | + pt = __reloc_pointer (pt, map); |
| 3713 | + if ((long)ptr & 3) |
| 3714 | + { |
| 3715 | + unsigned char *c = ptr; |
| 3716 | + int i; |
| 3717 | + unsigned long v = (unsigned long)pt; |
| 3718 | + for (i = 0; i < 4; i++, v >>= 8) |
| 3719 | + c[i] = v; |
| 3720 | + } |
| 3721 | + else |
| 3722 | + *(void**)ptr = pt; |
| 3723 | + } |
| 3724 | + } |
| 3725 | + p++; |
| 3726 | + } |
| 3727 | + return p; |
| 3728 | +} |
| 3729 | + |
| 3730 | +/* Call __reloc_range_indirect for the given range except for the last |
| 3731 | + entry, whose contents are only relocated. It's expected to hold |
| 3732 | + the GOT value. */ |
| 3733 | +void* attribute_hidden |
| 3734 | +__self_reloc (const struct elf32_fdpic_loadmap *map, |
| 3735 | + void ***p, void ***e) |
| 3736 | +{ |
| 3737 | + p = reloc_range_indirect (p, e-1, map); |
| 3738 | + |
| 3739 | + if (p >= e) |
| 3740 | + return (void*)-1; |
| 3741 | + |
| 3742 | + return __reloc_pointer (*p, map); |
| 3743 | +} |
| 3744 | + |
| 3745 | +#if 0 |
| 3746 | +/* These are other functions that might be useful, but that we don't |
| 3747 | + need. */ |
| 3748 | + |
| 3749 | +/* Remap pointers in [p,e). */ |
| 3750 | +static __always_inline void** |
| 3751 | +reloc_range (void **p, void **e, |
| 3752 | + const struct elf32_fdpic_loadmap *map) |
| 3753 | +{ |
| 3754 | + while (p < e) |
| 3755 | + { |
| 3756 | + *p = __reloc_pointer (*p, map); |
| 3757 | + p++; |
| 3758 | + } |
| 3759 | + return p; |
| 3760 | +} |
| 3761 | + |
| 3762 | +/* Remap p, adjust e by the same offset, then map the pointers in the |
| 3763 | + range determined by them. */ |
| 3764 | +void attribute_hidden |
| 3765 | +__reloc_range (const struct elf32_fdpic_loadmap *map, |
| 3766 | + void **p, void **e) |
| 3767 | +{ |
| 3768 | + void **old = p; |
| 3769 | + |
| 3770 | + p = __reloc_pointer (p, map); |
| 3771 | + e += p - old; |
| 3772 | + reloc_range (p, e, map); |
| 3773 | +} |
| 3774 | + |
| 3775 | +/* Remap p, adjust e by the same offset, then map pointers referenced |
| 3776 | + by the (unadjusted) pointers in the range. Return the relocated |
| 3777 | + value of the last pointer in the range. */ |
| 3778 | +void* attribute_hidden |
| 3779 | +__reloc_range_indirect (const struct elf32_fdpic_loadmap *map, |
| 3780 | + void ***p, void ***e) |
| 3781 | +{ |
| 3782 | + void ***old = p; |
| 3783 | + |
| 3784 | + p = __reloc_pointer (p, map); |
| 3785 | + e += p - old; |
| 3786 | + return reloc_range_indirect (p, e, map); |
| 3787 | +} |
| 3788 | +#endif |
| 3789 | + |
| 3790 | +#endif /* __UBICOM32_FDPIC__ */ |
| 3791 | --- /dev/null |
| 3792 | +++ b/libc/sysdeps/linux/ubicom32/setjmp.S |
| 3793 | @@ -0,0 +1,72 @@ |
| 3794 | +/* Setjmp for Ubicom32 */ |
| 3795 | + .text |
| 3796 | + .global _setjmp |
| 3797 | + .type _setjmp,@function |
| 3798 | +_setjmp: |
| 3799 | + movea a3, d0 ; A3 now holds the jmp buf that was passed in. |
| 3800 | + move.4 (a3)4++, d10 |
| 3801 | + move.4 (a3)4++, d11 |
| 3802 | + move.4 (a3)4++, d12 |
| 3803 | + move.4 (a3)4++, d13 |
| 3804 | + move.4 (a3)4++, a1 |
| 3805 | + move.4 (a3)4++, a2 |
| 3806 | + move.4 (a3)4++, a5 |
| 3807 | + move.4 (a3)4++, a6 |
| 3808 | + move.4 (a3)4++, a7 |
| 3809 | + move.4 d0, #0 |
| 3810 | + |
| 3811 | + calli a5, 0(a5) |
| 3812 | + .size _setjmp, . - _setjmp |
| 3813 | + |
| 3814 | +/* |
| 3815 | + * __sigsetjmp for Ubicom32 |
| 3816 | + * d0 holds sigjmp_buf and d1 holds the savemask. We will save the frame and then just call __sigjmp_save to do the mask save. |
| 3817 | + */ |
| 3818 | + .global __sigsetjmp |
| 3819 | + .type __sigsetjmp,@function |
| 3820 | +__sigsetjmp: |
| 3821 | + movea a3, d0 ; A3 now holds the jmp buf that was passed in. |
| 3822 | + move.4 (a3)4++, d10 |
| 3823 | + move.4 (a3)4++, d11 |
| 3824 | + move.4 (a3)4++, d12 |
| 3825 | + move.4 (a3)4++, d13 |
| 3826 | + move.4 (a3)4++, a1 |
| 3827 | + move.4 (a3)4++, a2 |
| 3828 | + move.4 (a3)4++, a5 |
| 3829 | + move.4 (a3)4++, a6 |
| 3830 | + move.4 (a3)4++, a7 |
| 3831 | + |
| 3832 | + ;; The frame has been saved. Call _sigjmp_save to get sigmask saved. a5 still has the return address and it will go back to that. |
| 3833 | +#if defined(__UBICOM32_FDPIC__) |
| 3834 | + call a3, __sigjmp_save |
| 3835 | +#else |
| 3836 | + moveai a3, #%hi(__sigjmp_save) |
| 3837 | + calli a3, %lo(__sigjmp_save)(a3) |
| 3838 | +#endif |
| 3839 | + .size __sigjmp_save, . - __sigjmp_save |
| 3840 | + |
| 3841 | + .global __longjmp |
| 3842 | + .type __longjmp,@function |
| 3843 | +__longjmp: |
| 3844 | + movea a3, d0 ; A3 now holds the jmp buf that was passed in. |
| 3845 | + move.4 d10, (a3)4++ |
| 3846 | + move.4 d11, (a3)4++ |
| 3847 | + move.4 d12, (a3)4++ |
| 3848 | + move.4 d13, (a3)4++ |
| 3849 | + move.4 a1 , (a3)4++ |
| 3850 | + move.4 a2 , (a3)4++ |
| 3851 | + move.4 a5 , (a3)4++ |
| 3852 | + move.4 a6 , (a3)4++ |
| 3853 | + move.4 a7 , (a3)4++ |
| 3854 | + |
| 3855 | + sub.4 #0, #0, d1 ; Test if d1 is zero. If it is we have to return 1 other wise return content of d1 |
| 3856 | + jmpeq.t 2f |
| 3857 | + move.4 d0, d1 ; d1 is non zero load it into d0 |
| 3858 | + jmpt.t 3f |
| 3859 | + |
| 3860 | +2: move.4 d0, #1 |
| 3861 | +3: calli a5, 0(a5) |
| 3862 | + .size __longjmp, . - __longjmp |
| 3863 | + .global __GI___longjmp |
| 3864 | + .hidden __GI___longjmp |
| 3865 | + .set __GI___longjmp,__longjmp |
| 3866 | --- /dev/null |
| 3867 | +++ b/libc/sysdeps/linux/ubicom32/sys/procfs.h |
| 3868 | @@ -0,0 +1,122 @@ |
| 3869 | +/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc. |
| 3870 | + This file is part of the GNU C Library. |
| 3871 | + |
| 3872 | + The GNU C Library is free software; you can redistribute it and/or |
| 3873 | + modify it under the terms of the GNU Lesser General Public |
| 3874 | + License as published by the Free Software Foundation; either |
| 3875 | + version 2.1 of the License, or (at your option) any later version. |
| 3876 | + |
| 3877 | + The GNU C Library is distributed in the hope that it will be useful, |
| 3878 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 3879 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 3880 | + Lesser General Public License for more details. |
| 3881 | + |
| 3882 | + You should have received a copy of the GNU Lesser General Public |
| 3883 | + License along with the GNU C Library; if not, write to the Free |
| 3884 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 3885 | + 02111-1307 USA. */ |
| 3886 | + |
| 3887 | +#ifndef _SYS_PROCFS_H |
| 3888 | +#define _SYS_PROCFS_H 1 |
| 3889 | + |
| 3890 | +/* This is somehow modelled after the file of the same name on SysVr4 |
| 3891 | + systems. It provides a definition of the core file format for ELF |
| 3892 | + used on Linux. */ |
| 3893 | + |
| 3894 | +#include <features.h> |
| 3895 | +#include <signal.h> |
| 3896 | +#include <sys/time.h> |
| 3897 | +#include <sys/types.h> |
| 3898 | +#include <sys/ucontext.h> |
| 3899 | +#include <bits/wordsize.h> |
| 3900 | + |
| 3901 | +__BEGIN_DECLS |
| 3902 | + |
| 3903 | +#define ELF_NGREG 38 |
| 3904 | + |
| 3905 | +typedef struct |
| 3906 | + { |
| 3907 | + union |
| 3908 | + { |
| 3909 | + unsigned long pr_regs[32]; |
| 3910 | + double pr_dregs[16]; |
| 3911 | + } pr_fr; |
| 3912 | + unsigned long __unused; |
| 3913 | + unsigned long pr_fsr; |
| 3914 | + unsigned char pr_qcnt; |
| 3915 | + unsigned char pr_q_entrysize; |
| 3916 | + unsigned char pr_en; |
| 3917 | + unsigned int pr_q[64]; |
| 3918 | + } elf_fpregset_t; |
| 3919 | + |
| 3920 | +typedef unsigned long elf_greg_t; |
| 3921 | +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| 3922 | + |
| 3923 | +struct elf_siginfo |
| 3924 | + { |
| 3925 | + int si_signo; /* Signal number. */ |
| 3926 | + int si_code; /* Extra code. */ |
| 3927 | + int si_errno; /* Errno. */ |
| 3928 | + }; |
| 3929 | + |
| 3930 | +/* Definitions to generate Intel SVR4-like core files. These mostly |
| 3931 | + have the same names as the SVR4 types with "elf_" tacked on the |
| 3932 | + front to prevent clashes with linux definitions, and the typedef |
| 3933 | + forms have been avoided. This is mostly like the SVR4 structure, |
| 3934 | + but more Linuxy, with things that Linux does not support and which |
| 3935 | + gdb doesn't really use excluded. Fields present but not used are |
| 3936 | + marked with "XXX". */ |
| 3937 | +struct elf_prstatus |
| 3938 | + { |
| 3939 | + struct elf_siginfo pr_info; /* Info associated with signal. */ |
| 3940 | + short int pr_cursig; /* Current signal. */ |
| 3941 | + unsigned long int pr_sigpend; /* Set of pending signals. */ |
| 3942 | + unsigned long int pr_sighold; /* Set of held signals. */ |
| 3943 | + __pid_t pr_pid; |
| 3944 | + __pid_t pr_ppid; |
| 3945 | + __pid_t pr_pgrp; |
| 3946 | + __pid_t pr_sid; |
| 3947 | + struct timeval pr_utime; /* User time. */ |
| 3948 | + struct timeval pr_stime; /* System time. */ |
| 3949 | + struct timeval pr_cutime; /* Cumulative user time. */ |
| 3950 | + struct timeval pr_cstime; /* Cumulative system time. */ |
| 3951 | + elf_gregset_t pr_reg; /* GP registers. */ |
| 3952 | + int pr_fpvalid; /* True if math copro being used. */ |
| 3953 | + }; |
| 3954 | + |
| 3955 | + |
| 3956 | +#define ELF_PRARGSZ (80) /* Number of chars for args */ |
| 3957 | + |
| 3958 | +struct elf_prpsinfo |
| 3959 | + { |
| 3960 | + char pr_state; /* Numeric process state. */ |
| 3961 | + char pr_sname; /* Char for pr_state. */ |
| 3962 | + char pr_zomb; /* Zombie. */ |
| 3963 | + char pr_nice; /* Nice val. */ |
| 3964 | + unsigned long int pr_flag; /* Flags. */ |
| 3965 | + unsigned short int pr_uid; |
| 3966 | + unsigned short int pr_gid; |
| 3967 | + int pr_pid, pr_ppid, pr_pgrp, pr_sid; |
| 3968 | + /* Lots missing */ |
| 3969 | + char pr_fname[16]; /* Filename of executable. */ |
| 3970 | + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */ |
| 3971 | + }; |
| 3972 | + |
| 3973 | +/* Addresses. */ |
| 3974 | +typedef void *psaddr_t; |
| 3975 | + |
| 3976 | +/* Register sets. Linux has different names. */ |
| 3977 | +typedef elf_gregset_t prgregset_t; |
| 3978 | +typedef elf_fpregset_t prfpregset_t; |
| 3979 | + |
| 3980 | +/* We don't have any differences between processes and threads, |
| 3981 | + therefore have only one PID type. */ |
| 3982 | +typedef __pid_t lwpid_t; |
| 3983 | + |
| 3984 | + |
| 3985 | +typedef struct elf_prstatus prstatus_t; |
| 3986 | +typedef struct elf_prpsinfo prpsinfo_t; |
| 3987 | + |
| 3988 | +__END_DECLS |
| 3989 | + |
| 3990 | +#endif /* sys/procfs.h */ |
| 3991 | --- /dev/null |
| 3992 | +++ b/libc/sysdeps/linux/ubicom32/sys/ucontext.h |
| 3993 | @@ -0,0 +1,104 @@ |
| 3994 | +/* Copyright (C) 1998, 1999 Free Software Foundation, Inc. |
| 3995 | + This file is part of the GNU C Library. |
| 3996 | + |
| 3997 | + The GNU C Library is free software; you can redistribute it and/or |
| 3998 | + modify it under the terms of the GNU Lesser General Public |
| 3999 | + License as published by the Free Software Foundation; either |
| 4000 | + version 2.1 of the License, or (at your option) any later version. |
| 4001 | + |
| 4002 | + The GNU C Library is distributed in the hope that it will be useful, |
| 4003 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4004 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 4005 | + Lesser General Public License for more details. |
| 4006 | + |
| 4007 | + You should have received a copy of the GNU Lesser General Public |
| 4008 | + License along with the GNU C Library; if not, write to the Free |
| 4009 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 4010 | + 02111-1307 USA. */ |
| 4011 | + |
| 4012 | +#ifndef _SYS_UCONTEXT_H |
| 4013 | +#define _SYS_UCONTEXT_H 1 |
| 4014 | + |
| 4015 | +#include <features.h> |
| 4016 | +#include <signal.h> |
| 4017 | +/* |
| 4018 | + * Location of the users' stored registers relative to R0. |
| 4019 | + * Usage is as an index into a gregset_t array or as u.u_ar0[XX]. |
| 4020 | + */ |
| 4021 | +#define REG_PSR (0) |
| 4022 | +#define REG_PC (1) |
| 4023 | +#define REG_SPARE (2) |
| 4024 | +#define REG_WVALID (3) |
| 4025 | +#define REG_G1 (4) |
| 4026 | +#define REG_G2 (5) |
| 4027 | +#define REG_G3 (6) |
| 4028 | +#define REG_G4 (7) |
| 4029 | +#define REG_G5 (8) |
| 4030 | +#define REG_G6 (9) |
| 4031 | +#define REG_G7 (10) |
| 4032 | +#define REG_O0 (11) |
| 4033 | +#define REG_O1 (12) |
| 4034 | +#define REG_O2 (13) |
| 4035 | +#define REG_O3 (14) |
| 4036 | +#define REG_O4 (15) |
| 4037 | +#define REG_O5 (16) |
| 4038 | +#define REG_O6 (17) |
| 4039 | +#define REG_O7 (18) |
| 4040 | +#define REG_GLOBALS (19) |
| 4041 | + |
| 4042 | +/* |
| 4043 | + * A gregset_t is defined as an array type for compatibility with the reference |
| 4044 | + * source. This is important due to differences in the way the C language |
| 4045 | + * treats arrays and structures as parameters. |
| 4046 | + * |
| 4047 | + * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)), |
| 4048 | + * but that the ABI defines it absolutely to be 21 (resp. 19). |
| 4049 | + */ |
| 4050 | + |
| 4051 | +#define NGREG 20 |
| 4052 | +typedef int greg_t; |
| 4053 | + |
| 4054 | +typedef greg_t gregset_t[NGREG]; |
| 4055 | + |
| 4056 | +/* |
| 4057 | + * The following structures define how a register window can appear on the |
| 4058 | + * stack. This structure is available (when required) through the `gwins' |
| 4059 | + * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the |
| 4060 | + * maximum number of outstanding register windows defined in the NIOS |
| 4061 | + * architecture (*not* implementation). |
| 4062 | + */ |
| 4063 | +#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */ |
| 4064 | +struct rwindow |
| 4065 | + { |
| 4066 | + greg_t rw_local[8]; /* locals */ |
| 4067 | + greg_t rw_in[8]; /* ins */ |
| 4068 | + }; |
| 4069 | + |
| 4070 | +#define rw_fp rw_in[6] /* frame pointer */ |
| 4071 | +#define rw_rtn rw_in[7] /* return address */ |
| 4072 | + |
| 4073 | +typedef struct gwindows |
| 4074 | + { |
| 4075 | + int wbcnt; |
| 4076 | + int *spbuf[NIOS_MAXREGWINDOW]; |
| 4077 | + struct rwindow wbuf[NIOS_MAXREGWINDOW]; |
| 4078 | + } gwindows_t; |
| 4079 | + |
| 4080 | +typedef struct |
| 4081 | + { |
| 4082 | + gregset_t gregs; /* general register set */ |
| 4083 | + gwindows_t *gwins; /* POSSIBLE pointer to register windows */ |
| 4084 | + } mcontext_t; |
| 4085 | + |
| 4086 | + |
| 4087 | +/* Userlevel context. */ |
| 4088 | +typedef struct ucontext |
| 4089 | + { |
| 4090 | + unsigned long uc_flags; |
| 4091 | + struct ucontext *uc_link; |
| 4092 | + __sigset_t uc_sigmask; |
| 4093 | + stack_t uc_stack; |
| 4094 | + mcontext_t uc_mcontext; |
| 4095 | + } ucontext_t; |
| 4096 | + |
| 4097 | +#endif /* sys/ucontext.h */ |
| 4098 | --- /dev/null |
| 4099 | +++ b/libc/sysdeps/linux/ubicom32/syscall.c |
| 4100 | @@ -0,0 +1,32 @@ |
| 4101 | +/* vi: set sw=4 ts=4: */ |
| 4102 | +/* syscall for ubicom32/uClibc |
| 4103 | + * |
| 4104 | + * Copyright (C) 2008 by Ubicom Inc. |
| 4105 | + * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> |
| 4106 | + * |
| 4107 | + * This program is free software; you can redistribute it and/or modify it |
| 4108 | + * under the terms of the GNU Library General Public License as published by |
| 4109 | + * the Free Software Foundation; either version 2 of the License, or (at your |
| 4110 | + * option) any later version. |
| 4111 | + * |
| 4112 | + * This program is distributed in the hope that it will be useful, but WITHOUT |
| 4113 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 4114 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License |
| 4115 | + * for more details. |
| 4116 | + * |
| 4117 | + * You should have received a copy of the GNU Library General Public License |
| 4118 | + * along with this program; if not, write to the Free Software Foundation, |
| 4119 | + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 4120 | + */ |
| 4121 | + |
| 4122 | +#include <features.h> |
| 4123 | +#include <errno.h> |
| 4124 | +#include <sys/types.h> |
| 4125 | +#include <sys/syscall.h> |
| 4126 | + |
| 4127 | +extern long syscall(long sysnum, long a, long b, long c, long d, long e, long f); |
| 4128 | +long syscall(long sysnum, long a, long b, long c, long d, long e, long f) |
| 4129 | +{ |
| 4130 | + int __NR_syscall_number = sysnum; |
| 4131 | + return (long) INLINE_SYSCALL(syscall_number, 6, a, b, c, d, e, f); |
| 4132 | +} |
| 4133 | --- /dev/null |
| 4134 | +++ b/libc/sysdeps/linux/ubicom32/vfork.S |
| 4135 | @@ -0,0 +1,35 @@ |
| 4136 | +#include <sys/syscall.h> |
| 4137 | + |
| 4138 | + .text |
| 4139 | + .type vfork,@function |
| 4140 | + .global vfork |
| 4141 | +vfork: |
| 4142 | + move.4 -4(sp)++, a5 ; Save return address on the stack. |
| 4143 | + movei d8, #__NR_vfork |
| 4144 | + moveai a3, #%hi(0x40400000) |
| 4145 | + calli a5, 0x10(a3) |
| 4146 | + |
| 4147 | + /* |
| 4148 | + * You get here only if the syscall bombed. If things had worked out the |
| 4149 | + * parent and child would have both returned to the instruction after |
| 4150 | + * the vfork call. |
| 4151 | + */ |
| 4152 | + move.4 a5, (sp)4++ ; Pop the return address off the stack. |
| 4153 | + movei d1, #-125 |
| 4154 | + sub.4 #0, d0, d1 |
| 4155 | + jmplt.t 1f |
| 4156 | + |
| 4157 | + ;; We have an error. |
| 4158 | + sub.4 d0, #0, d0 ; d0 = -res. Call __set_errno with that. |
| 4159 | +#if defined(__UBICOM32_FDPIC__) |
| 4160 | + call a3, __syscall_error |
| 4161 | +#else |
| 4162 | + moveai a3, #%hi(__syscall_error) |
| 4163 | + calli a3, %lo(__syscall_error)(a3) ; __syscall_error will return -1 and not come back here. |
| 4164 | +#endif |
| 4165 | +1: |
| 4166 | + calli a5, 0(a5) |
| 4167 | + .size vfork, . - vfork |
| 4168 | + .global __GI_vfork |
| 4169 | + .hidden __GI_vfork |
| 4170 | + .set __GI_vfork,vfork |
| 4171 | --- a/libpthread/linuxthreads.old/pthread.c |
| 4172 | +++ b/libpthread/linuxthreads.old/pthread.c |
| 4173 | @@ -393,6 +393,10 @@ void __pthread_initialize_minimal(void) |
| 4174 | #endif |
| 4175 | |
| 4176 | __libc_multiple_threads_ptr = __libc_pthread_init (ptr_pthread_functions); |
| 4177 | +#ifndef __ARCH_USE_MMU__ |
| 4178 | + __pthread_initial_thread_tos = |
| 4179 | + (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1)); |
| 4180 | +#endif /* __ARCH_USE_MMU__ */ |
| 4181 | } |
| 4182 | |
| 4183 | |
| 4184 | @@ -461,8 +465,11 @@ static void pthread_initialize(void) |
| 4185 | * __pthread_initial_thread_bos at address 0. These bounds are refined as we |
| 4186 | * malloc other stack frames such that they don't overlap. -StS |
| 4187 | */ |
| 4188 | - __pthread_initial_thread_tos = |
| 4189 | - (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1)); |
| 4190 | + if (__pthread_initial_thread_tos == NULL) { |
| 4191 | + __pthread_initial_thread_tos = |
| 4192 | + (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1)); |
| 4193 | + } |
| 4194 | + |
| 4195 | __pthread_initial_thread_bos = (char *) 1; /* set it non-zero so we know we have been here */ |
| 4196 | PDEBUG("initial thread stack bounds: bos=%p, tos=%p\n", |
| 4197 | __pthread_initial_thread_bos, __pthread_initial_thread_tos); |
| 4198 | --- /dev/null |
| 4199 | +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/pt-machine.h |
| 4200 | @@ -0,0 +1,68 @@ |
| 4201 | +/* Machine-dependent pthreads configuration and inline functions. |
| 4202 | + |
| 4203 | + Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004 |
| 4204 | + Free Software Foundation, Inc. |
| 4205 | + This file is part of the GNU C Library. |
| 4206 | + Contributed by Ralf Baechle <ralf@gnu.org>. |
| 4207 | + Based on the Alpha version by Richard Henderson <rth@tamu.edu>. |
| 4208 | + |
| 4209 | + The GNU C Library is free software; you can redistribute it and/or |
| 4210 | + modify it under the terms of the GNU Lesser General Public License as |
| 4211 | + published by the Free Software Foundation; either version 2.1 of the |
| 4212 | + License, or (at your option) any later version. |
| 4213 | + |
| 4214 | + The GNU C Library is distributed in the hope that it will be useful, |
| 4215 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4216 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 4217 | + Lesser General Public License for more details. |
| 4218 | + |
| 4219 | + You should have received a copy of the GNU Lesser General Public |
| 4220 | + License along with the GNU C Library; see the file COPYING.LIB. If |
| 4221 | + not, write to the Free Software Foundation, Inc., |
| 4222 | + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 4223 | + |
| 4224 | +#ifndef _PT_MACHINE_H |
| 4225 | +#define _PT_MACHINE_H 1 |
| 4226 | + |
| 4227 | +#include <features.h> |
| 4228 | + |
| 4229 | +/* |
| 4230 | + * XXX try to make this inline |
| 4231 | + */ |
| 4232 | +extern long int testandset (int *spinlock); |
| 4233 | + |
| 4234 | +#ifndef PT_EI |
| 4235 | +#define PT_EI |
| 4236 | +#else |
| 4237 | +/* Spinlock implementation; required. */ |
| 4238 | + |
| 4239 | +/* |
| 4240 | + * testandset() is the basis for the pthread spin lock. |
| 4241 | + * |
| 4242 | + * This implementation only requires that we 'set' the state of *spinlock. As |
| 4243 | + * bset is allows us to atomically 'testandset' a single bit define our 'set' is |
| 4244 | + * such that we will set bit 0 (ignoring all other bits, which should also be |
| 4245 | + * zero). |
| 4246 | + * Return value of 1 implies that the bit was already set and is still |
| 4247 | + * set. |
| 4248 | + * Return value of 0 implies that the bit was not previously set but it |
| 4249 | + * now is. |
| 4250 | + */ |
| 4251 | +long int |
| 4252 | +testandset (int *spinlock) |
| 4253 | +{ |
| 4254 | + int ret; |
| 4255 | + __asm__ volatile ( |
| 4256 | + " move.4 %0, #0 \n\t" /* Assume that the bit is not currently set */ |
| 4257 | + " bset %1, %1, #0 \n\t" /* Attempt to 'set' bit 0 */ |
| 4258 | + " jmpeq.t 1f \n\t" |
| 4259 | + " move.4 %0, #1 \n\t" /* Bit was already set, so return 1 */ |
| 4260 | + " 1: \n\t" |
| 4261 | + : "=r"(ret), "+U4"(*spinlock) |
| 4262 | + : |
| 4263 | + : "memory", "cc" |
| 4264 | + ); |
| 4265 | + return ret; |
| 4266 | +} |
| 4267 | +#endif |
| 4268 | +#endif /* pt-machine.h */ |
| 4269 | --- /dev/null |
| 4270 | +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/tls.h |
| 4271 | @@ -0,0 +1,26 @@ |
| 4272 | +/* Definitions for thread-local data handling. linuxthreads/MIPS version. |
| 4273 | + Copyright (C) 2005 Free Software Foundation, Inc. |
| 4274 | + This file is part of the GNU C Library. |
| 4275 | + |
| 4276 | + The GNU C Library is free software; you can redistribute it and/or |
| 4277 | + modify it under the terms of the GNU Lesser General Public |
| 4278 | + License as published by the Free Software Foundation; either |
| 4279 | + version 2.1 of the License, or (at your option) any later version. |
| 4280 | + |
| 4281 | + The GNU C Library is distributed in the hope that it will be useful, |
| 4282 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4283 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 4284 | + Lesser General Public License for more details. |
| 4285 | + |
| 4286 | + You should have received a copy of the GNU Lesser General Public |
| 4287 | + License along with the GNU C Library; if not, write to the Free |
| 4288 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 4289 | + 02111-1307 USA. */ |
| 4290 | + |
| 4291 | +#ifndef _TLS_H |
| 4292 | +#define _TLS_H |
| 4293 | +#ifdef HAVE_TLS_SUPPORT |
| 4294 | +#warning no tls support |
| 4295 | +#undef USE_TLS |
| 4296 | +#endif |
| 4297 | +#endif /* tls.h */ |
| 4298 | --- /dev/null |
| 4299 | +++ b/libc/sysdeps/linux/ubicom32/sys/user.h |
| 4300 | @@ -0,0 +1,40 @@ |
| 4301 | +/* Copyright (C) 1998 Free Software Foundation, Inc. |
| 4302 | + This file is part of the GNU C Library. |
| 4303 | + |
| 4304 | + The GNU C Library is free software; you can redistribute it and/or |
| 4305 | + modify it under the terms of the GNU Lesser General Public |
| 4306 | + License as published by the Free Software Foundation; either |
| 4307 | + version 2.1 of the License, or (at your option) any later version. |
| 4308 | + |
| 4309 | + The GNU C Library is distributed in the hope that it will be useful, |
| 4310 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4311 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 4312 | + Lesser General Public License for more details. |
| 4313 | + |
| 4314 | + You should have received a copy of the GNU Lesser General Public |
| 4315 | + License along with the GNU C Library; if not, write to the Free |
| 4316 | + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 4317 | + 02111-1307 USA. */ |
| 4318 | + |
| 4319 | +#ifndef _SYS_USER_H |
| 4320 | +#define _SYS_USER_H 1 |
| 4321 | + |
| 4322 | +#include <features.h> |
| 4323 | + |
| 4324 | +#include <asm/ptrace.h> |
| 4325 | + |
| 4326 | +struct user { |
| 4327 | + struct pt_regs regs; /* entire machine state */ |
| 4328 | + size_t u_tsize; /* text size (pages) */ |
| 4329 | + size_t u_dsize; /* data size (pages) */ |
| 4330 | + size_t u_ssize; /* stack size (pages) */ |
| 4331 | + unsigned long start_code; /* text starting address */ |
| 4332 | + unsigned long start_data; /* data starting address */ |
| 4333 | + unsigned long start_stack; /* stack starting address */ |
| 4334 | + long int signal; /* signal causing core dump */ |
| 4335 | + struct regs * u_ar0; /* help gdb find registers */ |
| 4336 | + unsigned long magic; /* identifies a core file */ |
| 4337 | + char u_comm[32]; /* user command name */ |
| 4338 | +}; |
| 4339 | + |
| 4340 | +#endif /* _SYS_USER_H */ |
| 4341 | |