118 строки
4.5 KiB
Plaintext
118 строки
4.5 KiB
Plaintext
# 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.)
|
|
#
|
|
# Optional parameters:
|
|
# - libs_section_prefix
|
|
# - libs_section_postfix
|
|
# The contents of these strings, if specified, will be placed around
|
|
# the libs section of the linker line. It allows one to inject libraries
|
|
# at the beginning and end for all targets in a toolchain.
|
|
# - deps
|
|
# Just fowarded to the toolchain definition.
|
|
template("gcc_toolchain") {
|
|
toolchain(target_name) {
|
|
assert(defined(invoker.cc), "gcc_toolchain() must specify a \"cc\" value")
|
|
assert(defined(invoker.cxx), "gcc_toolchain() must specify a \"cxx\" value")
|
|
assert(defined(invoker.ar), "gcc_toolchain() must specify a \"ar\" value")
|
|
assert(defined(invoker.ld), "gcc_toolchain() must specify a \"ld\" value")
|
|
assert(defined(invoker.toolchain_cpu_arch),
|
|
"gcc_toolchain() must specify a \"toolchain_cpu_arch\"")
|
|
assert(defined(invoker.toolchain_os),
|
|
"gcc_toolchain() must specify a \"toolchain_os\"")
|
|
|
|
# We can't do string interpolation ($ in strings) on things with dots in
|
|
# them. To allow us to use $cc below, for example, we create copies of
|
|
# these values in our scope.
|
|
cc = invoker.cc
|
|
cxx = invoker.cxx
|
|
ar = invoker.ar
|
|
ld = invoker.ld
|
|
|
|
# Bring these into our scope for string interpolation with default values.
|
|
if (defined(invoker.libs_section_prefix)) {
|
|
libs_section_prefix = invoker.libs_section_prefix
|
|
} else {
|
|
libs_section_prefix = ""
|
|
}
|
|
|
|
if (defined(invoker.libs_section_postfix)) {
|
|
libs_section_postfix = invoker.libs_section_postfix
|
|
} else {
|
|
libs_section_postfix = ""
|
|
}
|
|
|
|
# Make these apply to all tools below.
|
|
lib_prefix = "-l"
|
|
lib_dir_prefix="-L"
|
|
|
|
tool("cc") {
|
|
# cflags_pch_c
|
|
command = "$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 @\$rspfile"
|
|
description = "AR \$out"
|
|
rspfile = "\$out.rsp"
|
|
rspfile_content = "\$in"
|
|
}
|
|
tool("solink") {
|
|
command = "if [ ! -e \$lib -o ! -e \${lib}.TOC ]; then $ld -shared \$ldflags -o \$lib -Wl,-soname=\$soname @\$rspfile && { 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_section_prefix \$libs $libs_section_postfix && { readelf -d \${lib} | grep SONAME ; nm -gD -f p \${lib} | cut -f1-2 -d' '; } > \${lib}.tmp && if ! cmp -s \${lib}.tmp \${lib}.TOC; then mv \${lib}.tmp \${lib}.TOC ; fi; fi"
|
|
description = "SOLINK \$lib"
|
|
rspfile = "\$out.rsp"
|
|
rspfile_content = "-Wl,--whole-archive \$in \$solibs -Wl,--no-whole-archive \$libs"
|
|
#pool = "link_pool"
|
|
restat = "1"
|
|
}
|
|
tool("link") {
|
|
command = "$ld \$ldflags -o \$out -Wl,--start-group @\$rspfile \$solibs -Wl,--end-group $libs_section_prefix \$libs $libs_section_postfix"
|
|
description = "LINK \$out"
|
|
rspfile = "\$out.rsp"
|
|
rspfile_content = "\$in"
|
|
#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 = invoker.toolchain_cpu_arch
|
|
os = invoker.toolchain_os
|
|
}
|
|
|
|
if (defined(invoker.deps)) {
|
|
deps = invoker.deps
|
|
}
|
|
}
|
|
}
|