blob: b1f21b080dc256698edb0aa2900f6ae4156e86b8 [file] [log] [blame]
# 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.
assert(host_os == "mac")
import("//build/config/ios/ios_sdk.gni")
import("//build/config/mac/mac_sdk.gni")
import("//build/config/sysroot.gni")
import("//build/toolchain/clang.gni")
import("//build/toolchain/clang_static_analyzer.gni")
import("//build/toolchain/rbe.gni")
import("//build/toolchain/ccache.gni")
import("//build/toolchain/toolchain.gni")
if (host_cpu == "arm64") {
rebased_clang_dir =
rebase_path("$buildtools_path/mac-arm64/clang/bin", root_build_dir)
} else {
rebased_clang_dir =
rebase_path("$buildtools_path/mac-x64/clang/bin", root_build_dir)
}
if (use_ccache) {
# ccache only supports compilation, not linking.
cxx_prefix = "ccache "
objc_prefix = "ccache "
link_prefix = ""
} else if (use_rbe) {
remote_wrapper =
rebase_path("//flutter/build/rbe/remote_wrapper.sh", root_build_dir)
local_wrapper =
rebase_path("//flutter/build/rbe/local_wrapper.sh", root_build_dir)
compiler_args = rewrapper_command + [
"--remote_wrapper=$remote_wrapper",
"--local_wrapper=$local_wrapper",
"--labels=type=compile,compiler=clang,lang=cpp ",
]
cxx_prefix = string_join(" ", compiler_args)
# RBE does not support objc out of the box.
objc_prefix = ""
# Remote links time out without reporting an actionable error.
link_prefix = ""
} else {
cxx_prefix = ""
objc_prefix = ""
link_prefix = ""
}
# Shared toolchain definition. Invocations should set toolchain_os to set the
# build args in this definition.
template("mac_toolchain") {
toolchain(target_name) {
assert(defined(invoker.asm), "mac_toolchain() must specify a \"asm\" value")
assert(defined(invoker.cc), "mac_toolchain() must specify a \"cc\" value")
assert(defined(invoker.cxx), "mac_toolchain() must specify a \"cxx\" value")
assert(defined(invoker.objc), "mac_toolchain() must specify a \"objc\" value")
assert(defined(invoker.ld), "mac_toolchain() must specify a \"ld\" value")
assert(defined(invoker.ar), "mac_toolchain() must specify a \"ar\" value")
assert(defined(invoker.toolchain_cpu),
"mac_toolchain() must specify a \"toolchain_cpu\"")
assert(defined(invoker.toolchain_os),
"mac_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.
ar = invoker.ar
asm = invoker.asm
cc = invoker.cc
cxx = invoker.cxx
objc = invoker.objc
ld = invoker.ld
if (use_clang_static_analyzer) {
analyzer_wrapper =
rebase_path("//build/toolchain/clang_static_analyzer_wrapper.py",
root_build_dir) + " --mode=clang"
cc = analyzer_wrapper + " ${cc}"
cxx = analyzer_wrapper + " ${cxx}"
}
# Make these apply to all tools below.
lib_switch = "-l"
lib_dir_switch = "-L"
sysroot_flags = ""
if (defined(invoker.sysroot_flags)) {
sysroot_flags = invoker.sysroot_flags
}
coverage_flags = ""
if (enable_coverage) {
coverage_flags = "-fprofile-instr-generate -fcoverage-mapping"
}
tool("cc") {
depfile = "{{output}}.d"
command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} $sysroot_flags $coverage_flags -c {{source}} -o {{output}}"
depsformat = "gcc"
description = "CC {{output}}"
outputs =
[ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ]
}
tool("cxx") {
depfile = "{{output}}.d"
command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} $sysroot_flags $coverage_flags -c {{source}} -o {{output}}"
depsformat = "gcc"
description = "CXX {{output}}"
outputs =
[ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ]
}
tool("asm") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
depfile = "{{output}}.d"
command = "$asm -MMD -MF $depfile {{defines}} {{include_dirs}} {{asmflags}} {{cflags}} {{cflags_c}} $sysroot_flags -c {{source}} -o {{output}}"
depsformat = "gcc"
description = "ASM {{output}}"
outputs =
[ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ]
}
tool("objc") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
depfile = "{{output}}.d"
command = "$objc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} {{cflags_objc}} $sysroot_flags $coverage_flags -c {{source}} -o {{output}}"
depsformat = "gcc"
description = "OBJC {{output}}"
outputs =
[ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ]
}
tool("objcxx") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
depfile = "{{output}}.d"
command = "$objc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} {{cflags_objcc}} $sysroot_flags $coverage_flags -c {{source}} -o {{output}}"
depsformat = "gcc"
description = "OBJCXX {{output}}"
outputs =
[ "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o" ]
}
tool("alink") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
command = "rm -f {{output}} && $ar rcs {{output}} {{inputs}}"
description = "CREATE ARCHIVE {{output}}"
outputs =
[ "{{target_out_dir}}/{{target_output_name}}{{output_extension}}" ]
default_output_extension = ".a"
output_prefix = "lib"
}
tool("solink") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
dylib = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}" # eg
# "./libfoo.dylib"
rspfile = dylib + ".rsp"
# These variables are not build into GN but are helpers that implement
# (1) linking to produce a .so, (2) extracting the symbols from that file
# to a temporary file, (3) if the temporary file has differences from the
# existing .TOC file, overwrite it, oterwise, don't change it.
#
# As a special case, if the library reexports symbols from other dynamic
# libraries, we always update the .TOC and skip the temporary file and
# diffing steps, since that library always needs to be re-linked.
tocname = dylib + ".TOC"
temporary_tocname = dylib + ".tmp"
lto_object_file = "{{root_out_dir}}/lto_{{target_output_name}}.o"
does_reexport_command = "[ ! -e $dylib -o ! -e $tocname ] || otool -l $dylib | grep -q LC_REEXPORT_DYLIB"
link_command = "$ld -shared $sysroot_flags $coverage_flags -Wl,-object_path_lto,$lto_object_file {{ldflags}} -o $dylib -Wl,-filelist,$rspfile {{solibs}} {{libs}} {{frameworks}}"
replace_command = "if ! cmp -s $temporary_tocname $tocname; then mv $temporary_tocname $tocname"
extract_toc_command = "{ otool -l $dylib | grep LC_ID_DYLIB -A 5; nm -gP $dylib | cut -f1-2 -d' ' | grep -v U\$\$; true; }"
command = "if $does_reexport_command ; then $link_command && $extract_toc_command > $tocname; else $link_command && $extract_toc_command > $temporary_tocname && $replace_command ; fi; fi"
rspfile_content = "{{inputs_newline}}"
description = "SOLINK {{output}}"
# Use this for {{output_extension}} expansions unless a target manually
# overrides it (in which case {{output_extension}} will be what the target
# specifies).
default_output_extension = ".dylib"
output_prefix = "lib"
# Since the above commands only updates the .TOC file when it changes, ask
# Ninja to check if the timestamp actually changed to know if downstream
# dependencies should be recompiled.
restat = true
# Tell GN about the output files. It will link to the dylib but use the
# tocname for dependency management.
outputs = [
dylib,
tocname,
]
link_output = dylib
depend_output = tocname
}
tool("link") {
pool = "//build/toolchain:toolchain_pool($current_toolchain)"
outfile = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"
rspfile = "$outfile.rsp"
command = "$ld $sysroot_flags {{ldflags}} $coverage_flags -Xlinker -rpath -Xlinker @executable_path/Frameworks -o $outfile -Wl,-filelist,$rspfile {{solibs}} {{libs}} {{frameworks}}"
description = "LINK $outfile"
rspfile_content = "{{inputs_newline}}"
outputs = [ outfile ]
}
tool("stamp") {
command = "touch {{output}}"
description = "STAMP {{output}}"
}
tool("copy") {
command = "ln -f {{source}} {{output}} 2>/dev/null || (rsync -a --delete {{source}} {{output}})"
description = "COPY {{source}} {{output}}"
}
toolchain_args = {
current_cpu = invoker.toolchain_cpu
current_os = invoker.toolchain_os
# These values need to be passed through unchanged.
target_os = target_os
target_cpu = target_cpu
if (defined(invoker.is_clang)) {
is_clang = invoker.is_clang
}
}
}
}
# Toolchain used for iOS device targets.
mac_toolchain("ios_clang_arm") {
toolchain_cpu = "arm"
toolchain_os = "mac"
prefix = rebased_clang_dir
ar = "${prefix}/llvm-ar"
asm = "${prefix}/clang"
cc = "${cxx_prefix}${prefix}/clang"
cxx = "${cxx_prefix}${prefix}/clang++"
objc = "${objc_prefix}${prefix}/clang++"
ld = "${link_prefix}${prefix}/clang++"
is_clang = true
sysroot_rel = rebase_path(ios_sdk_path, root_build_dir)
sysroot_flags = "-isysroot $sysroot_rel -miphoneos-version-min=$ios_deployment_target"
}
# Toolchain used for iOS simulator targets (arm64).
mac_toolchain("ios_clang_arm_sim") {
toolchain_cpu = "arm"
toolchain_os = "mac"
prefix = rebased_clang_dir
ar = "${prefix}/llvm-ar"
asm = "${prefix}/clang"
cc = "${cxx_prefix}${prefix}/clang"
cxx = "${cxx_prefix}${prefix}/clang++"
objc = "${objc_prefix}${prefix}/clang++"
ld = "${link_prefix}${prefix}/clang++"
is_clang = true
sysroot_rel = rebase_path(ios_sdk_path, root_build_dir)
sysroot_flags = "-isysroot $sysroot_rel -mios-simulator-version-min=$ios_deployment_target"
}
# Toolchain used for iOS simulator targets (x64).
mac_toolchain("ios_clang_x64_sim") {
toolchain_cpu = "x64"
toolchain_os = "mac"
prefix = rebased_clang_dir
ar = "${prefix}/llvm-ar"
asm = "${prefix}/clang"
cc = "${cxx_prefix}${prefix}/clang"
cxx = "${cxx_prefix}${prefix}/clang++"
objc = "${objc_prefix}${prefix}/clang++"
ld = "${link_prefix}${prefix}/clang++"
is_clang = true
sysroot_rel = rebase_path(ios_sdk_path, root_build_dir)
sysroot_flags = "-isysroot $sysroot_rel -mios-simulator-version-min=$ios_deployment_target"
}
# Toolchain used for Mac X64 host targets.
mac_toolchain("clang_x64") {
toolchain_cpu = "x64"
toolchain_os = "mac"
prefix = rebased_clang_dir
ar = "${prefix}/llvm-ar"
asm = "${prefix}/clang"
cc = "${cxx_prefix}${prefix}/clang"
cxx = "${cxx_prefix}${prefix}/clang++"
objc = "${objc_prefix}${prefix}/clang++"
ld = "${link_prefix}${prefix}/clang++"
is_clang = true
sysroot_rel = rebase_path(mac_sdk_path, root_build_dir)
sysroot_flags =
"-isysroot $sysroot_rel -mmacosx-version-min=$mac_deployment_target"
}
# Toolchain used for Mac ARM64 host targets.
mac_toolchain("clang_arm64") {
toolchain_cpu = "arm64"
toolchain_os = "mac"
prefix = rebased_clang_dir
ar = "${prefix}/llvm-ar"
asm = "${prefix}/clang"
cc = "${cxx_prefix}${prefix}/clang"
cxx = "${cxx_prefix}${prefix}/clang++"
objc = "${objc_prefix}${prefix}/clang++"
ld = "${link_prefix}${prefix}/clang++"
is_clang = true
sysroot_rel = rebase_path(mac_sdk_path, root_build_dir)
sysroot_flags =
"-isysroot $sysroot_rel -mmacosx-version-min=$mac_deployment_target"
}