chromium-src-build/toolchain/gcc_toolchain.gni

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# Copyright (c) 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This template defines a GCC toolchain.
#
# It requires the following variables specifying the executables to run:
# - cc
# - cxx
# - ar
# - ld
# and the following which is used in the toolchain_args
# - toolchain_cpu_arch (What "cpu_arch" should be set to when invoking a
# build using this toolchain.)
# - toolchain_os (What "os" should be set to when invoking a build using this
# toolchain.)
template("gcc_toolchain") {
toolchain(target_name) {
# Make these apply to all tools below.
lib_prefix = "-l"
lib_dir_prefix="-L"
tool("cc") {
# cflags_pch_c
command = "$cc -MMD -MF \$out.d \$defines \$includes \$cflags \$cflags_c -c \$in -o \$out"
description = "CC \$out"
depfile = "\$out.d"
deps = "gcc"
}
tool("cxx") {
# cflags_pch_cc
command = "$cxx -MMD -MF \$out.d \$defines \$includes \$cflags \$cflags_cc -c \$in -o \$out"
description = "CXX \$out"
depfile = "\$out.d"
deps = "gcc"
}
tool("alink") {
command = "rm -f \$out && $ar rcs \$out \$in"
description = "AR \$out"
}
tool("solink") {
command = "if [ ! -e \$lib -o ! -e \${lib}.TOC ]; then $ld -shared \$ldflags -o \$lib -Wl,-soname=\$soname -Wl,--whole-archive \$in \$solibs -Wl,--no-whole-archive \$libs && { readelf -d \${lib} | grep SONAME ; nm -gD -f p \${lib} | cut -f1-2 -d' '; } > \${lib}.TOC; else $ld -shared \$ldflags -o \$lib -Wl,-soname=\$soname -Wl,--whole-archive \$in \$solibs -Wl,--no-whole-archive \$libs && { readelf -d \${lib} | grep SONAME ; nm -gD -f p \${lib} | cut -f1-2 -d' '; } > \${lib}.tmp && if ! cmp -s \${lib}.tmp \${lib}.TOC; then mv \${lib}.tmp \${lib}.TOC ; fi; fi"
description = "SOLINK \$lib"
#pool = "link_pool"
restat = "1"
}
tool("link") {
command = "$ld \$ldflags -o \$out -Wl,--start-group \$in \$solibs -Wl,--end-group \$libs"
description = "LINK \$out"
#pool = "link_pool"
}
tool("stamp") {
command = "\${postbuilds}touch \$out"
description = "STAMP \$out"
}
tool("copy") {
command = "ln -f \$in \$out 2>/dev/null || (rm -rf \$out && cp -af \$in \$out)"
description = "COPY \$in \$out"
}
# When invoking this toolchain not as the default one, these args will be
# passed to the build. They are ignored when this is the default toolchain.
toolchain_args() {
cpu_arch = toolchain_cpu_arch
os = toolchain_os
}
}
}