1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
#
# Copyright (C) 2007-2009 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# Main makefile for the toolchain
#
# Steps:
# 1) toolchain/binutils/compile
# build & install binutils
# 2) toolchain/gcc/minimal/compile
# build & install a minimal gcc, needed for steps 3 & 4
# 3) toolchain/kernel-headers/compile
# install kernel headers, needed for step 4
# 4) toolchain/libc/headers/compile
# build & install libc headers & support files, needed for step 5
# 5) toolchain/gcc/initial/compile
# build & install an initial gcc, needed for step 6
# 6) toolchain/libc/compile
# build & install the final libc
# 7) toolchain/gcc/final/compile
# build & install the final gcc
# 8) toolchain/libc/utils/compile
# build & install libc utilities
#
# For musl, steps 2 and 4 are skipped, and step 3 is done after 5
curdir:=toolchain
# subdirectories to descend into
$(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),wrapper,kernel-headers binutils gcc/initial gcc/final $(LIBC) fortify-headers) $(if $(CONFIG_NASM),nasm)
ifdef CONFIG_USE_UCLIBC
$(curdir)/builddirs += $(LIBC)/utils
endif
# builddir dependencies
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
ifdef CONFIG_USE_MUSL
$(curdir)/kernel-headers/compile:=$(curdir)/gcc/initial/compile
$(curdir)/$(LIBC)/compile:=$(curdir)/kernel-headers/compile
else
$(curdir)/builddirs += $(LIBC)/headers gcc/minimal
$(curdir)/gcc/minimal/compile:=$(curdir)/binutils/compile
$(curdir)/kernel-headers/compile:=$(curdir)/gcc/minimal/compile
$(curdir)/$(LIBC)/headers/compile:=$(curdir)/kernel-headers/compile
$(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/headers/compile
endif
$(curdir)/gcc/initial/compile+=$(curdir)/binutils/compile
$(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/compile
$(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile
$(curdir)/$(LIBC)/utils/compile:=$(curdir)/gcc/final/compile
endif
ifndef DUMP_TARGET_DB
ifneq ($(ARCH),)
$(TOOLCHAIN_DIR)/info.mk: .config
@for dir in $(TOOLCHAIN_DIR); do ( \
$(if $(QUIET),,set -x;) \
mkdir -p "$$dir"; \
cd "$$dir"; \
ln -nsf lib lib64; \
ln -nsf lib lib32; \
mkdir -p stamp lib usr/include usr/lib ; \
); done
@grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
@touch $@
endif
endif
ifdef CONFIG_BUILDBOT
$(TOOLCHAIN_DIR)/stamp/.ver_check: $(TMP_DIR)/.build
cd "$(TOPDIR)"; git log --format=%h -1 toolchain > $(TMP_DIR)/.ver_check
cmp -s $(TMP_DIR)/.ver_check $@ || { \
rm -rf $(BUILD_DIR) $(STAGING_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR_TOOLCHAIN); \
mkdir -p $(TOOLCHAIN_DIR)/stamp; \
mv $(TMP_DIR)/.ver_check $@; \
}
$(TOOLCHAIN_DIR)/info.mk $(STAGING_DIR)/.prepared: $(TOOLCHAIN_DIR)/stamp/.ver_check
endif
# prerequisites for the individual targets
$(curdir)/ := .config prereq
$(curdir)//compile = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile)
ifndef DUMP_TARGET_DB
$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
endif
$(curdir)/install: $(curdir)/compile
$(eval $(call stampfile,$(curdir),toolchain,compile,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
$(eval $(call stampfile,$(curdir),toolchain,check,$(TMP_DIR)/.build))
$(eval $(call subdir,$(curdir)))
|
