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1 # Copyright 2015 The Chromium Authors. All rights reserved. | 1 # Copyright 2015 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import("//build/config/chrome_build.gni") | 5 import("//build/config/chrome_build.gni") |
6 import("//build/toolchain/toolchain.gni") | 6 import("//build/toolchain/toolchain.gni") |
7 | 7 |
8 declare_args() { | 8 declare_args() { |
9 # Compile for Address Sanitizer to find memory bugs. | 9 # Compile for Address Sanitizer to find memory bugs. |
10 is_asan = false | 10 is_asan = false |
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48 # Enable building with SyzyAsan which can find certain types of memory | 48 # Enable building with SyzyAsan which can find certain types of memory |
49 # errors. Only works on Windows. See | 49 # errors. Only works on Windows. See |
50 # https://github.com/google/syzygy/wiki/SyzyASanHowTo | 50 # https://github.com/google/syzygy/wiki/SyzyASanHowTo |
51 is_syzyasan = false | 51 is_syzyasan = false |
52 | 52 |
53 # Compile with Control Flow Integrity to protect virtual calls and casts. | 53 # Compile with Control Flow Integrity to protect virtual calls and casts. |
54 # See http://clang.llvm.org/docs/ControlFlowIntegrity.html | 54 # See http://clang.llvm.org/docs/ControlFlowIntegrity.html |
55 # | 55 # |
56 # TODO(pcc): Remove this flag if/when CFI is enabled in all official builds. | 56 # TODO(pcc): Remove this flag if/when CFI is enabled in all official builds. |
57 is_cfi = target_os == "linux" && !is_chromeos && target_cpu == "x64" && | 57 is_cfi = target_os == "linux" && !is_chromeos && target_cpu == "x64" && |
58 is_official_build && allow_posix_link_time_opt | 58 is_official_build && allow_posix_link_time_opt && is_clang |
krasin1
2017/05/02 19:48:23
allow_posix_link_time is a clang feature. Can you
Mostyn Bramley-Moore
2017/05/02 19:55:34
Thanks- I was testing that change simultaneously i
| |
59 | 59 |
60 # Enable checks for bad casts: derived cast and unrelated cast. | 60 # Enable checks for bad casts: derived cast and unrelated cast. |
61 # TODO(krasin): remove this, when we're ready to add these checks by default. | 61 # TODO(krasin): remove this, when we're ready to add these checks by default. |
62 # https://crbug.com/626794 | 62 # https://crbug.com/626794 |
63 use_cfi_cast = false | 63 use_cfi_cast = false |
64 | 64 |
65 # Enable checks for indirect function calls via a function pointer. | 65 # Enable checks for indirect function calls via a function pointer. |
66 # TODO(pcc): remove this when we're ready to add these checks by default. | 66 # TODO(pcc): remove this when we're ready to add these checks by default. |
67 # https://crbug.com/701919 | 67 # https://crbug.com/701919 |
68 use_cfi_icall = false | 68 use_cfi_icall = false |
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194 assert(!is_debug || !(is_msan || is_ubsan || is_ubsan_null || is_ubsan_vptr), | 194 assert(!is_debug || !(is_msan || is_ubsan || is_ubsan_null || is_ubsan_vptr), |
195 "Sanitizers should generally be used in release (set is_debug=false).") | 195 "Sanitizers should generally be used in release (set is_debug=false).") |
196 | 196 |
197 assert(!is_msan || (is_linux && current_cpu == "x64"), | 197 assert(!is_msan || (is_linux && current_cpu == "x64"), |
198 "MSan currently only works on 64-bit Linux and ChromeOS builds.") | 198 "MSan currently only works on 64-bit Linux and ChromeOS builds.") |
199 | 199 |
200 # ASAN build on Windows is not working in debug mode. Intercepting memory | 200 # ASAN build on Windows is not working in debug mode. Intercepting memory |
201 # allocation functions is hard on Windows and not yet implemented in LLVM. | 201 # allocation functions is hard on Windows and not yet implemented in LLVM. |
202 assert(!is_win || !is_debug || !is_asan, | 202 assert(!is_win || !is_debug || !is_asan, |
203 "ASan on Windows doesn't work in debug (set is_debug=false).") | 203 "ASan on Windows doesn't work in debug (set is_debug=false).") |
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