1 | # |
2 | # Copyright (C) 2007-2009 OpenWrt.org |
3 | # |
4 | # This is free software, licensed under the GNU General Public License v2. |
5 | # See /LICENSE for more information. |
6 | # |
7 | # Main makefile for the toolchain |
8 | # |
9 | # Steps: |
10 | # 1) toolchain/binutils/install |
11 | # build & install binutils |
12 | # 2) toolchain/gcc/prepare |
13 | # build & install a minimal gcc, needed for steps 3 & 4 |
14 | # 3) toolchain/kernel-headers/install |
15 | # install kernel headers, needed for step 4 |
16 | # 4) toolchain/libc/prepare |
17 | # build & install libc headers & support files, needed for step 5 |
18 | # 5) toolchain/gcc/compile |
19 | # build & install an initial gcc, needed for step 6 |
20 | # 6) toolchain/libc/compile |
21 | # build & install the final libc |
22 | # 7) toolchain/gcc/install |
23 | # build & install the final gcc |
24 | # 8) toolchain/libc/install |
25 | # build & install libc utilities |
26 | # |
27 | |
28 | curdir:=toolchain |
29 | |
30 | # subdirectories to descend into |
31 | $(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_INSIGHT),insight) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),,kernel-headers binutils gcc $(LIBC) $(if $(CONFIG_GLIBC_PORTS),glibc-ports)) |
32 | $(curdir)/builddirs-compile:=$($(curdir)/builddirs-prepare) |
33 | $(curdir)/builddirs-install:=$($(curdir)/builddirs-compile) |
34 | |
35 | # builddir dependencies |
36 | ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),) |
37 | $(curdir)/$(LIBC)/prepare:=$(curdir)/kernel-headers/install |
38 | $(curdir)/gcc/prepare:=$(curdir)/binutils/install |
39 | $(curdir)/kernel-headers/install:=$(curdir)/gcc/prepare |
40 | $(curdir)/gcc/compile:=$(curdir)/$(LIBC)/prepare |
41 | $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/compile |
42 | $(curdir)/gcc/install:=$(curdir)/$(LIBC)/compile |
43 | $(curdir)/$(LIBC)/install:=$(curdir)/gcc/install |
44 | ifneq ($(CONFIG_GLIBC_PORTS),) |
45 | $(curdir)/glibc/prepare:=$(curdir)/glibc-ports/prepare |
46 | endif |
47 | endif |
48 | |
49 | ifdef CONFIG_GCC_VERSION_LLVM |
50 | $(curdir)/builddirs += llvm |
51 | $(curdir)/gcc/prepare += $(curdir)/llvm/install |
52 | endif |
53 | |
54 | ifneq ($(ARCH),) |
55 | $(TOOLCHAIN_DIR)/info.mk: .config |
56 | @for dir in $(TOOLCHAIN_DIR); do ( \ |
57 | set -x; \ |
58 | mkdir -p "$$dir"; \ |
59 | cd "$$dir"; \ |
60 | mkdir -p stamp lib usr/include usr/lib ; \ |
61 | ); done |
62 | @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@ |
63 | @touch $@ |
64 | endif |
65 | |
66 | # prerequisites for the individual targets |
67 | $(curdir)/ := .config prereq |
68 | $(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk |
69 | $(curdir)//compile = $(1)/prepare |
70 | $(curdir)//install = $(1)/compile |
71 | |
72 | $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed: |
73 | |
74 | $(eval $(call stampfile,$(curdir),toolchain,install,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR))) |
75 | $(eval $(call subdir,$(curdir))) |
76 | |
77 | |