BUILD.gn (1726B)
1 # Copyright 2019 The Chromium Authors 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import("//chromium/build/config/chromeos/ui_mode.gni") 6 7 assert(is_chromeos) 8 9 config("compiler_cpu_abi") { 10 # These flags are added by the Chrome OS toolchain compiler wrapper, 11 # or are implicitly passed by Chome OS's toolchain's clang due to 12 # the cmake flags that clang was built with. Passing them redundantly 13 # is harmless and prepares for using Chromium's toolchain. 14 if (is_chromeos_device) { 15 if (target_cpu == "x64") { 16 asmflags = [ "--target=x86_64-cros-linux-gnu" ] 17 cflags = [ 18 "--target=x86_64-cros-linux-gnu", 19 "-mno-movbe", 20 ] 21 ldflags = [ 22 "--target=x86_64-cros-linux-gnu", 23 "-mno-movbe", 24 ] 25 } else if (target_cpu == "arm") { 26 asmflags = [ "--target=armv7a-cros-linux-gnueabihf" ] 27 cflags = [ "--target=armv7a-cros-linux-gnueabihf" ] 28 ldflags = [ "--target=armv7a-cros-linux-gnueabihf" ] 29 } else if (target_cpu == "arm64") { 30 asmflags = [ "--target=aarch64-cros-linux-gnu" ] 31 cflags = [ "--target=aarch64-cros-linux-gnu" ] 32 ldflags = [ "--target=aarch64-cros-linux-gnu" ] 33 } else { 34 assert(false, "add support for $target_cpu here") 35 } 36 } 37 } 38 39 config("runtime_library") { 40 # These flags are added by the Chrome OS toolchain compiler wrapper, 41 # or are implicitly passed by Chome OS's toolchain's clang due to 42 # the cmake flags that clang was built with. Passing them redundantly 43 # is harmless and prepares for using Chromium's toolchain. 44 if (is_chromeos_device) { 45 ldflags = [ 46 "--rtlib=compiler-rt", 47 "--unwindlib=libunwind", 48 ] 49 } 50 }