978ccebd8a
These .o are only appropriate for linking executables; others would be used if we link an .so. -B turns out to be the flag we really wanted here anyway, adding that directory to the search path for all these .o files, letting Clang pick the right one. The existing comment is now correct for both the lib_dirs and ldflags +=. Change-Id: I66d9aada12477756142726828cf66c142ca76a48 Reviewed-on: https://skia-review.googlesource.com/5657 Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Mike Klein <mtklein@chromium.org>
638 lines
17 KiB
Plaintext
638 lines
17 KiB
Plaintext
# Copyright 2016 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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declare_args() {
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ar = "ar"
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cc = "cc"
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cxx = "c++"
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if (is_android) {
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ar = "$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin/ar"
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cc = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang"
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cxx = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang++"
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if (host_os == "win") {
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ar = ar + ".exe"
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cc = cc + ".exe"
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cxx = cxx + ".exe"
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}
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}
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windk = "C:/Program Files (x86)/Microsoft Visual Studio 14.0"
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extra_cflags = []
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extra_cflags_c = []
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extra_cflags_cc = []
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extra_ldflags = []
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cc_wrapper = ""
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}
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if (host_os == "win") {
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python = "python.bat"
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stamp = "cmd.exe /c echo >"
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} else {
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python = "python"
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stamp = "touch"
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}
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is_clang = is_android || is_ios || is_mac || (cc == "clang" && cxx == "clang++")
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if (!is_clang && !is_win) {
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is_clang = exec_script("is_clang.py",
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[
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cc,
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cxx,
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],
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"value")
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}
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if (is_ios) {
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ios_sysroot = exec_script("find_ios_sysroot.py", [], "trim string")
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}
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config("default") {
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asmflags = []
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cflags = []
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cflags_c = []
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cflags_cc = []
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defines = []
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ldflags = []
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if (is_win) {
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cflags += [
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"/FS", # Preserve previous PDB behavior.
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"/bigobj", # Some of our files are bigger than the regular limits.
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"/WX", # Treat warnings as errors.
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]
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defines += [
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"_CRT_SECURE_NO_WARNINGS", # Disables warnings about sscanf().
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"_HAS_EXCEPTIONS=0", # Disables exceptions in MSVC STL.
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"WIN32_LEAN_AND_MEAN",
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"NOMINMAX",
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]
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include_dirs = [
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"$windk/VC/include",
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# For local builds.
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"$windk/../Windows Kits/10/Include/10.0.10150.0/ucrt",
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"$windk/../Windows Kits/8.1/Include/shared",
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"$windk/../Windows Kits/8.1/Include/um",
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# For builds using win_toolchain asset.
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"$windk/win_sdk/Include/10.0.10586.0/shared",
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"$windk/win_sdk/Include/10.0.10586.0/ucrt",
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"$windk/win_sdk/Include/10.0.10586.0/um",
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]
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lib_dirs = [
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# For local builds.
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"$windk/../Windows Kits/10/Lib/10.0.10150.0/ucrt/$target_cpu",
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"$windk/../Windows Kits/8.1/Lib/winv6.3/um/$target_cpu",
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# For builds using win_toolchain asset.
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"$windk/win_sdk/Lib/10.0.10586.0/ucrt/$target_cpu",
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"$windk/win_sdk/Lib/10.0.10586.0/um/$target_cpu",
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]
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if (target_cpu == "x86") {
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lib_dirs += [ "$windk/VC/lib" ]
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} else {
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lib_dirs += [ "$windk/VC/lib/amd64" ]
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}
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} else {
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cflags += [
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"-fstrict-aliasing",
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"-fPIC",
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"-fvisibility=hidden",
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"-Werror",
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]
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cflags_cc += [
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"-std=c++11",
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"-fno-threadsafe-statics",
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"-fvisibility-inlines-hidden",
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]
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}
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if (current_cpu == "arm") {
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cflags += [
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"-march=armv7-a",
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"-mfpu=neon",
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"-mthumb",
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]
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} else if (current_cpu == "mipsel") {
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cflags += [
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"-march=mips32r2",
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"-mdspr2",
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]
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} else if (current_cpu == "x86" && !is_win) {
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asmflags += [ "-m32" ]
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cflags += [
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"-m32",
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"-msse2",
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"-mfpmath=sse",
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]
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ldflags += [ "-m32" ]
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}
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if (is_android) {
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asmflags += [
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"--target=$ndk_target",
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"-B$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin",
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]
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cflags += [
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"--sysroot=$ndk/platforms/$ndk_platform",
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"--target=$ndk_target",
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"-B$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin",
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]
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cflags_cc += [
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"-isystem$ndk/sources/android/support/include",
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"-isystem$ndk/sources/cxx-stl/llvm-libc++/libcxx/include", # Through r12b.
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"-isystem$ndk/sources/cxx-stl/llvm-libc++/include", # Since r13.
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]
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ldflags += [
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"--sysroot=$ndk/platforms/$ndk_platform",
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"--target=$ndk_target",
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"-B$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin",
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]
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lib_dirs = [
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"$ndk/sources/cxx-stl/llvm-libc++/libs/$ndk_stdlib",
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"$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/lib/gcc/$ndk_target/4.9.x",
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]
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if (current_cpu == "mips64el") {
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# The r13 NDK omits /usr/lib from the MIPS64 sysroots, but Clang searches
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# for /usr/lib64 as $PATH_TO_USR_LIB/../lib64. If there's no /usr/lib,
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# it can't find /usr/lib64. We must point Clang at /usr/lib64 manually.
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lib_dirs += [ "$ndk/platforms/$ndk_platform/usr/lib64" ]
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ldflags += [ "-B$ndk/platforms/$ndk_platform/usr/lib64" ]
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}
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libs = [
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# Order matters here! Keep these three in exactly this order.
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"c++_static",
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"c++abi",
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"android_support",
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]
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if (target_cpu == "arm") {
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libs += [ "unwind" ]
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}
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}
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if (is_ios) {
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cflags += [
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"-isysroot",
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ios_sysroot,
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"-arch",
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target_cpu,
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]
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cflags_cc += [ "-stdlib=libc++" ]
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ldflags += [
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"-isysroot",
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ios_sysroot,
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"-arch",
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target_cpu,
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"-stdlib=libc++",
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]
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libs = [ "objc" ]
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# We used to link all our iOS tools together, so none actually defines main().
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# Instead they each define their own entry point, which our iOS mega-app called.
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# If we can we'd like to not do that anymore. While we're building both ways, here's
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# our clever hack to give each tool back its own main().
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cflags += [
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"-Ddm_main=main",
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"-Dnanobench_main=main",
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"-Dtool_main=main",
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"-Dtest_main=main",
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]
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}
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if (is_linux) {
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libs = [ "pthread" ]
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}
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if (sanitize != "") {
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# You can either pass the sanitizers directly, e.g. "address,undefined",
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# or pass one of the couple common aliases used by the bots.
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sanitizers = sanitize
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if (sanitize == "ASAN") {
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sanitizers = "address,bool,function,integer-divide-by-zero,nonnull-attribute,null,object-size,return,returns-nonnull-attribute,shift,signed-integer-overflow,unreachable,vla-bound,vptr"
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} else if (sanitize == "TSAN") {
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sanitizers = "thread"
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} else if (sanitize == "MSAN") {
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sanitizers = "memory"
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}
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cflags += [
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"-fsanitize=$sanitizers",
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"-fno-sanitize-recover=$sanitizers",
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"-fsanitize-blacklist=" + rebase_path("../tools/xsan.blacklist"),
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]
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ldflags += [ "-fsanitize=$sanitizers" ]
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if (sanitizers == "memory") {
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cflags += [ "-fsanitize-memory-track-origins" ]
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cflags_cc += [ "-stdlib=libc++" ]
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ldflags += [ "-stdlib=libc++" ]
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}
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}
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}
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config("no_exceptions") {
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# Exceptions are disabled by default on Windows. (Use /EHsc to enable them.)
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if (!is_win) {
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cflags_cc = [ "-fno-exceptions" ]
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}
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}
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config("warnings") {
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cflags = []
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cflags_cc = []
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cflags_objc = []
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if (is_win) {
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cflags += [
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"/W3", # Turn on lots of warnings.
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# Disable a bunch of warnings:
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"/wd4244", # conversion from 'float' to 'int', possible loss of data
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"/wd4267", # conversion from 'size_t' to 'int', possible loss of data
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"/wd4800", # forcing value to bool 'true' or 'false' (performance warning)
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# Probably only triggers when /EHsc is enabled.
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"/wd4291", # no matching operator delete found;
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# memory will not be freed if initialization throws an exception
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]
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} else {
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cflags += [
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"-Wall",
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"-Wextra",
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"-Winit-self",
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"-Wpointer-arith",
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"-Wsign-compare",
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"-Wvla",
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"-Wno-deprecated-declarations",
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]
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cflags_cc += [ "-Wnon-virtual-dtor" ]
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if (is_clang) {
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cflags += [
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"-Weverything",
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"-Wno-unknown-warning-option", # Let older Clangs ignore newer Clangs' warnings.
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]
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if (is_android && target_cpu == "x86") {
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# Clang seems to think new/malloc will only be 4-byte aligned on x86 Android.
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# We're pretty sure it's actually 8-byte alignment.
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cflags += [ "-Wno-over-aligned" ]
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}
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cflags += [
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"-Wno-cast-align",
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"-Wno-conditional-uninitialized",
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"-Wno-conversion",
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"-Wno-disabled-macro-expansion",
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"-Wno-documentation",
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"-Wno-documentation-unknown-command",
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"-Wno-double-promotion",
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"-Wno-exit-time-destructors", # TODO: OK outside libskia
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"-Wno-float-conversion",
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"-Wno-float-equal",
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"-Wno-format-nonliteral",
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"-Wno-global-constructors", # TODO: OK outside libskia
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"-Wno-gnu-zero-variadic-macro-arguments",
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"-Wno-missing-prototypes",
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"-Wno-missing-variable-declarations",
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"-Wno-pedantic",
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"-Wno-reserved-id-macro",
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"-Wno-shadow",
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"-Wno-shift-sign-overflow",
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"-Wno-sign-conversion",
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"-Wno-switch-enum",
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"-Wno-undef",
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"-Wno-unreachable-code",
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"-Wno-unreachable-code-break",
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"-Wno-unreachable-code-return",
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"-Wno-unused-macros",
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"-Wno-unused-member-function",
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]
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cflags_cc += [
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"-Wno-abstract-vbase-init",
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"-Wno-weak-vtables",
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]
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# We are unlikely to want to fix these.
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cflags += [
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"-Wno-covered-switch-default",
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"-Wno-deprecated",
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"-Wno-implicit-fallthrough",
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"-Wno-missing-noreturn",
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"-Wno-old-style-cast",
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"-Wno-padded",
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]
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cflags_cc += [
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"-Wno-c++98-compat",
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"-Wno-c++98-compat-pedantic",
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"-Wno-undefined-func-template",
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]
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cflags_objc += [
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"-Wno-direct-ivar-access",
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"-Wno-objc-interface-ivars",
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]
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}
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}
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}
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config("warnings_except_public_headers") {
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if (!is_win) {
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cflags = [ "-Wno-unused-parameter" ]
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}
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}
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config("extra_flags") {
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cflags = extra_cflags
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cflags_c = extra_cflags_c
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cflags_cc = extra_cflags_cc
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ldflags = extra_ldflags
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}
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config("debug_symbols") {
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# It's annoying to wait for full debug symbols to push over
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# to Android devices. -gline-tables-only is a lot slimmer.
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if (is_android) {
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cflags = [ "-gline-tables-only" ]
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} else if (is_win) {
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cflags = [ "/Zi" ]
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ldflags = [ "/DEBUG" ]
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} else {
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cflags = [ "-g" ]
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}
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}
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config("no_rtti") {
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if (sanitize != "ASAN") { # -fsanitize=vptr requires RTTI
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if (is_win) {
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cflags_cc = [ "/GR-" ]
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} else {
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cflags_cc = [ "-fno-rtti" ]
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}
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}
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}
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config("release") {
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if (is_win) {
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cflags = [
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"/O2",
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"/Zc:inline",
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"/GS-",
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]
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ldflags = [
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"/OPT:ICF",
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"/OPT:REF",
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]
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} else {
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cflags = [
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"-O3",
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"-momit-leaf-frame-pointer",
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]
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}
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defines = [ "NDEBUG" ]
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}
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config("executable") {
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if (is_android) {
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ldflags = [ "-pie" ]
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} else if (is_mac) {
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ldflags = [ "-Wl,-rpath,@loader_path/." ]
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} else if (is_linux) {
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ldflags = [
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"-rdynamic",
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"-Wl,-rpath,\$ORIGIN",
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]
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} else if (is_win) {
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ldflags = [
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"/SUBSYSTEM:CONSOLE", # Quiet "no subsystem specified; CONSOLE assumed".
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"/INCREMENTAL:NO", # Quiet warnings about failing to incrementally link by never trying to.
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]
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}
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}
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toolchain("msvc") {
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lib_dir_switch = "/LIBPATH:"
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bin = "$windk/VC/bin/amd64"
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env_setup = ""
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if (target_cpu == "x86") {
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bin += "_x86"
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env_setup = "cmd /c $windk/win_sdk/bin/SetEnv.cmd /x86 && "
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}
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tool("cc") {
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rspfile = "{{output}}.rsp"
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces so pdbname must be quoted.
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command = "$env_setup$bin/cl.exe /nologo /showIncludes /FC @$rspfile /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.obj",
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]
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rspfile_content = "{{defines}} {{include_dirs}} {{cflags}} {{cflags_c}}"
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description = "compile {{source}}"
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}
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tool("cxx") {
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rspfile = "{{output}}.rsp"
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces so pdbname must be quoted.
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command = "$env_setup$bin/cl.exe /nologo /showIncludes /FC @$rspfile /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.obj",
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]
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rspfile_content = "{{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}}"
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description = "compile {{source}}"
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}
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tool("alink") {
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rspfile = "{{output}}.rsp"
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command = "$env_setup$bin/lib.exe /nologo /ignore:4221 {{arflags}} /OUT:{{output}} @$rspfile"
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outputs = [
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# Ignore {{output_extension}} and always use .lib, there's no reason to
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# allow targets to override this extension on Windows.
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"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
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]
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default_output_extension = ".lib"
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default_output_dir = "{{target_out_dir}}"
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}}"
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description = "link {{output}}"
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}
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tool("solink") {
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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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libname = "${dllname}.lib"
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pdbname = "${dllname}.pdb"
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rspfile = "${dllname}.rsp"
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command = "$env_setup$bin/link.exe /nologo /IMPLIB:$libname /DLL /OUT:$dllname /PDB:$pdbname @$rspfile"
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outputs = [
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dllname,
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libname,
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pdbname,
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]
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default_output_extension = ".dll"
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default_output_dir = "{{root_out_dir}}"
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link_output = libname
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depend_output = libname
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runtime_outputs = [
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dllname,
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pdbname,
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]
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# I don't quite understand this. Aping Chrome's toolchain/win/BUILD.gn.
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restat = true
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}}"
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description = "link {{output}}"
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}
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tool("link") {
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exename = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"
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pdbname = "$exename.pdb"
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rspfile = "$exename.rsp"
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command =
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"$env_setup$bin/link.exe /nologo /OUT:$exename /PDB:$pdbname @$rspfile"
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default_output_extension = ".exe"
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default_output_dir = "{{root_out_dir}}"
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outputs = [
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exename,
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]
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}}"
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description = "link {{output}}"
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}
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tool("stamp") {
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command = "$stamp {{output}}"
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description = "stamp {{output}}"
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}
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tool("copy") {
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|
cp_py = rebase_path("cp.py")
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command = "$python $cp_py {{source}} {{output}}"
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description = "copy {{source}} {{output}}"
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}
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}
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|
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toolchain("gcc_like") {
|
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lib_switch = "-l"
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lib_dir_switch = "-L"
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|
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tool("cc") {
|
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
|
|
depsformat = "gcc"
|
|
outputs = [
|
|
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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|
]
|
|
description = "compile {{source}}"
|
|
}
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|
|
|
tool("cxx") {
|
|
depfile = "{{output}}.d"
|
|
command = "$cc_wrapper $cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} -c {{source}} -o {{output}}"
|
|
depsformat = "gcc"
|
|
outputs = [
|
|
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
|
|
]
|
|
description = "compile {{source}}"
|
|
}
|
|
|
|
tool("objc") {
|
|
depfile = "{{output}}.d"
|
|
command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_objc}} -c {{source}} -o {{output}}"
|
|
depsformat = "gcc"
|
|
outputs = [
|
|
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
|
|
]
|
|
description = "compile {{source}}"
|
|
}
|
|
|
|
tool("objcxx") {
|
|
depfile = "{{output}}.d"
|
|
command = "$cc_wrapper $cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} {{cflags_objc}} -c {{source}} -o {{output}}"
|
|
depsformat = "gcc"
|
|
outputs = [
|
|
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
|
|
]
|
|
description = "compile {{source}}"
|
|
}
|
|
|
|
tool("asm") {
|
|
depfile = "{{output}}.d"
|
|
command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{asmflags}} -c {{source}} -o {{output}}"
|
|
depsformat = "gcc"
|
|
outputs = [
|
|
"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
|
|
]
|
|
description = "compile {{source}}"
|
|
}
|
|
|
|
tool("alink") {
|
|
rspfile = "{{output}}.rsp"
|
|
rspfile_content = "{{inputs}}"
|
|
ar_py = rebase_path("ar.py")
|
|
command = "$python $ar_py $ar {{output}} $rspfile"
|
|
outputs = [
|
|
"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
|
|
]
|
|
default_output_extension = ".a"
|
|
output_prefix = "lib"
|
|
description = "link {{output}}"
|
|
}
|
|
|
|
tool("solink") {
|
|
soname = "{{target_output_name}}{{output_extension}}"
|
|
|
|
rpath = "-Wl,-soname,$soname"
|
|
if (is_mac) {
|
|
rpath = "-Wl,-install_name,@rpath/$soname"
|
|
}
|
|
|
|
command = "$cc_wrapper $cxx -shared {{ldflags}} {{inputs}} {{solibs}} {{libs}} $rpath -o {{output}}"
|
|
outputs = [
|
|
"{{root_out_dir}}/$soname",
|
|
]
|
|
output_prefix = "lib"
|
|
default_output_extension = ".so"
|
|
description = "link {{output}}"
|
|
}
|
|
|
|
tool("link") {
|
|
command = "$cc_wrapper $cxx {{ldflags}} {{inputs}} {{solibs}} {{libs}} -o {{output}}"
|
|
outputs = [
|
|
"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
|
|
]
|
|
description = "link {{output}}"
|
|
}
|
|
|
|
tool("stamp") {
|
|
command = "$stamp {{output}}"
|
|
description = "stamp {{output}}"
|
|
}
|
|
|
|
tool("copy") {
|
|
cp_py = rebase_path("cp.py")
|
|
command = "$python $cp_py {{source}} {{output}}"
|
|
description = "copy {{source}} {{output}}"
|
|
}
|
|
}
|