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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_chrome_branded && is_official_build && allow_posix_link_time_opt | 58 is_official_build && allow_posix_link_time_opt |
| 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 # By default, Control Flow Integrity will crash the program if it detects a | 65 # By default, Control Flow Integrity will crash the program if it detects a |
| 66 # violation. Set this to true to print detailed diagnostics instead. | 66 # violation. Set this to true to print detailed diagnostics instead. |
| 67 use_cfi_diag = false | 67 use_cfi_diag = false |
| 68 | 68 |
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| 177 # this condition. We may also be able to find another way to enable your case | 177 # this condition. We may also be able to find another way to enable your case |
| 178 # without having people accidentally get broken builds by compiling an | 178 # without having people accidentally get broken builds by compiling an |
| 179 # unsupported or unadvisable configurations. | 179 # unsupported or unadvisable configurations. |
| 180 # | 180 # |
| 181 # For one-off testing, just comment this assertion out. | 181 # For one-off testing, just comment this assertion out. |
| 182 assert(!is_debug || !(is_msan || is_ubsan || is_ubsan_null || is_ubsan_vptr), | 182 assert(!is_debug || !(is_msan || is_ubsan || is_ubsan_null || is_ubsan_vptr), |
| 183 "Sanitizers should generally be used in release (set is_debug=false).") | 183 "Sanitizers should generally be used in release (set is_debug=false).") |
| 184 | 184 |
| 185 assert(!is_msan || (is_linux && current_cpu == "x64"), | 185 assert(!is_msan || (is_linux && current_cpu == "x64"), |
| 186 "MSan currently only works on 64-bit Linux and ChromeOS builds.") | 186 "MSan currently only works on 64-bit Linux and ChromeOS builds.") |
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