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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
# Makefile for to build a gcc/uClibc toolchain
#
# Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
# Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
# Copyright (C) 2005 Felix Fietkau <openwrt@nbd.name>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
include $(TOPDIR)/rules.mk
GCC_VERSION:=$(strip $(GCC_VERSION))
#GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(GCC_VERSION)
GCC_SITE:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(GCC_VERSION) \
http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(GCC_VERSION)
GCC_SOURCE:=gcc-$(GCC_VERSION).tar.bz2
GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)
GCC_CAT:=bzcat
GCC_STRIP_HOST_BINARIES:=true
#############################################################
#
# Setup some initial stuff
#
#############################################################
ifeq ($(BR2_INSTALL_LIBGCJ),y)
TARGET_LANGUAGES:=c,c++,java
else
ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
TARGET_LANGUAGES:=c,c++
else
TARGET_LANGUAGES:=c
endif
endif
#############################################################
#
# build the first pass gcc compiler
#
#############################################################
GCC_BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-initial
$(DL_DIR)/$(GCC_SOURCE):
mkdir -p $(DL_DIR)
$(SCRIPT_DIR)/download.pl $(DL_DIR) $(GCC_SOURCE) x $(GCC_SITE)
$(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE)
mkdir -p $(TOOL_BUILD_DIR)
$(GCC_CAT) $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
touch $(GCC_DIR)/.unpacked
$(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked
# Apply any files named gcc-*.patch from the source directory to gcc
$(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) \*.patch
# Note: The soft float situation has improved considerably with gcc 3.4.x.
# We can dispense with the custom spec files, as well as libfloat for the arm case.
# However, we still need a patch for arm. There's a similar patch for gcc 3.3.x
# which needs to be integrated so we can kill of libfloat for good.
ifeq ($(BR2_SOFT_FLOAT),y)
ifeq ("$(strip $(ARCH))","arm")
$(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional
endif
ifeq ("$(strip $(ARCH))","armeb")
$(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional
endif
endif
touch $(GCC_DIR)/.patched
# The --without-headers option stopped working with gcc 3.0 and has never been
# # fixed, so we need to actually have working C library header files prior to
# # the step or libgcc will not build...
$(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
mkdir -p $(GCC_BUILD_DIR1)
(cd $(GCC_BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
$(GCC_DIR)/configure \
--prefix=$(STAGING_DIR) \
--build=$(GNU_HOST_NAME) \
--host=$(GNU_HOST_NAME) \
--target=$(REAL_GNU_TARGET_NAME) \
--enable-languages=c \
--disable-shared \
--with-sysroot=$(TOOL_BUILD_DIR)/uClibc_dev/ \
--disable-__cxa_atexit \
--enable-target-optspace \
--with-gnu-ld \
$(DISABLE_NLS) \
$(MULTILIB) \
$(SOFT_FLOAT_CONFIG_OPTION) \
$(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
$(EXTRA_GCC_CONFIG_OPTIONS));
touch $(GCC_BUILD_DIR1)/.configured
$(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc
touch $(GCC_BUILD_DIR1)/.compiled
$(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc: $(GCC_BUILD_DIR1)/.compiled
PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install-gcc
#############################################################
#
# second pass compiler build. Build the compiler targeting
# the newly built shared uClibc library.
#
#############################################################
#
# Sigh... I had to rework things because using --with-gxx-include-dir
# causes issues with include dir search order for g++. This seems to
# have something to do with "path translations" and possibly doesn't
# affect gcc-target. However, I haven't tested gcc-target yet so no
# guarantees. mjn3
GCC_BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-final
$(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a
mkdir -p $(GCC_BUILD_DIR2)
# Important! Required for limits.h to be fixed.
rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
ln -sf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
(cd $(GCC_BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \
$(GCC_DIR)/configure \
--prefix=$(STAGING_DIR) \
--build=$(GNU_HOST_NAME) \
--host=$(GNU_HOST_NAME) \
--target=$(REAL_GNU_TARGET_NAME) \
--enable-languages=$(TARGET_LANGUAGES) \
--enable-shared \
--disable-__cxa_atexit \
--enable-target-optspace \
--with-gnu-ld \
$(DISABLE_NLS) \
$(MULTILIB) \
$(SOFT_FLOAT_CONFIG_OPTION) \
$(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
$(GCC_USE_SJLJ_EXCEPTIONS) \
$(EXTRA_GCC_CONFIG_OPTIONS));
touch $(GCC_BUILD_DIR2)/.configured
$(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) all
touch $(GCC_BUILD_DIR2)/.compiled
gcc-install: $(GCC_BUILD_DIR2)/.compiled
PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install
echo $(GCC_VERSION) > $(STAGING_DIR)/gcc_version
# Set up the symlinks to enable lying about target name.
set -e; \
(cd $(STAGING_DIR); \
ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
cd bin; \
for app in $(REAL_GNU_TARGET_NAME)-* ; do \
ln -sf $${app} \
$(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
done; \
);
#
# Now for the ugly 3.3.x soft float hack...
#
ifeq ($(BR2_SOFT_FLOAT),y)
ifeq ($(findstring 3.3.,$(GCC_VERSION)),3.3.)
# Make sure we have a soft float specs file for this arch
if [ ! -f ./$(GCC_VERSION)/specs-$(ARCH)-soft-float ] ; then \
echo soft float configured but no specs file for this arch ; \
/bin/false ; \
fi;
# Replace specs file with one that defaults to soft float mode.
if [ ! -f $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \
echo staging dir specs file is missing ; \
/bin/false ; \
fi;
cp ./$(GCC_VERSION)/specs-$(ARCH)-soft-float $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs
endif
endif
# We do another ugly hack here because the standard behaviour is
# to include a reference to libgcc.so.1 in all binaries. For flash space
# saving, we change the specs file to link in a static libgcc here.
if [ ! -f $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \
echo staging dir specs file is missing ; \
/bin/false ; \
fi;
if grep -q as-needed $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs; then \
patch -d $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/ -p0 < ./$(GCC_VERSION)/static-libgcc.patch.conditional ; \
fi;
source: $(DL_DIR)/$(GCC_SOURCE)
prepare: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc
compile: gcc-install
install:
clean: gcc-clean
rm -rf $(GCC_DIR)
rm -rf $(GCC_BUILD_DIR1)
rm -rf $(GCC_BUILD_DIR2)
rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc*
rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
|
