Root/toolchain/uClibc/patches-0.9.32/600-ubicom32-uClibc.patch

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

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