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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/android/config.gni") | 5 import("//build/config/android/config.gni") |
6 import("//build/config/chrome_build.gni") | 6 import("//build/config/chrome_build.gni") |
7 import("//build/config/chromecast_build.gni") | 7 import("//build/config/chromecast_build.gni") |
8 import("//build/config/sanitizers/sanitizers.gni") | 8 import("//build/config/sanitizers/sanitizers.gni") |
| 9 import("//build/toolchain/toolchain.gni") |
9 | 10 |
10 declare_args() { | 11 declare_args() { |
11 # How many symbols to include in the build. This affects the performance of | 12 # How many symbols to include in the build. This affects the performance of |
12 # the build since the symbols are large and dealing with them is slow. | 13 # the build since the symbols are large and dealing with them is slow. |
13 # 2 means regular build with symbols. | 14 # 2 means regular build with symbols. |
14 # 1 means minimal symbols, usually enough for backtraces only. | 15 # 1 means minimal symbols, usually enough for backtraces only. |
15 # 0 means no symbols. | 16 # 0 means no symbols. |
16 # -1 means auto-set according to debug/release and platform. | 17 # -1 means auto-set according to debug/release and platform. |
17 symbol_level = -1 | 18 symbol_level = -1 |
18 | 19 |
19 # Compile in such a way as to enable profiling of the generated code. For | 20 # Compile in such a way as to enable profiling of the generated code. For |
20 # example, don't omit the frame pointer and leave in symbols. | 21 # example, don't omit the frame pointer and leave in symbols. |
21 enable_profiling = false | 22 enable_profiling = false |
22 | 23 |
23 # Specify the current PGO phase, only used for the Windows MSVS build. Here's | 24 # Specify the current PGO phase, only used for the Windows MSVS build. Here's |
24 # the different values that can be used: | 25 # the different values that can be used: |
25 # 0 : Means that PGO is turned off. | 26 # 0 : Means that PGO is turned off. |
26 # 1 : Used during the PGI (instrumentation) phase. | 27 # 1 : Used during the PGI (instrumentation) phase. |
27 # 2 : Used during the PGO (optimization) phase. | 28 # 2 : Used during the PGO (optimization) phase. |
28 # | 29 # |
29 # TODO(sebmarchand): Add support for the PGU (update) phase. | 30 # TODO(sebmarchand): Add support for the PGU (update) phase. |
30 chrome_pgo_phase = 0 | 31 chrome_pgo_phase = 0 |
31 | 32 |
32 # Whether or not the official builds should be build with full WPO. | 33 # Whether or not the official builds should be build with full WPO. |
33 full_wpo_on_official = false | 34 full_wpo_on_official = false |
34 } | 35 } |
35 | 36 |
| 37 declare_args() { |
| 38 # Whether to use the gold linker from binutils instead of lld or bfd. |
| 39 use_gold = !use_lld && |
| 40 ((is_linux && (current_cpu == "x64" || current_cpu == "x86" || |
| 41 current_cpu == "arm")) || |
| 42 (is_android && (current_cpu == "x86" || current_cpu == "x64" || |
| 43 current_cpu == "arm"))) |
| 44 } |
| 45 |
36 # If it wasn't manually set, set to an appropriate default. | 46 # If it wasn't manually set, set to an appropriate default. |
37 assert(symbol_level >= -1 && symbol_level <= 2, "Invalid symbol_level") | 47 assert(symbol_level >= -1 && symbol_level <= 2, "Invalid symbol_level") |
38 if (symbol_level == -1) { | 48 if (symbol_level == -1) { |
39 if (is_android && use_order_profiling) { | 49 if (is_android && use_order_profiling) { |
40 # With instrumentation enabled, debug info puts libchrome.so over 4gb, which | 50 # With instrumentation enabled, debug info puts libchrome.so over 4gb, which |
41 # causes the linker to produce an invalid ELF. http://crbug.com/574476 | 51 # causes the linker to produce an invalid ELF. http://crbug.com/574476 |
42 symbol_level = 0 | 52 symbol_level = 0 |
43 } else if (is_win && is_clang && !using_sanitizer) { | 53 } else if (is_win && is_clang && !using_sanitizer) { |
44 # TODO(thakis): Remove this again once building with clang/win and | 54 # TODO(thakis): Remove this again once building with clang/win and |
45 # debug info doesn't make link.exe run for hours. | 55 # debug info doesn't make link.exe run for hours. |
46 symbol_level = 1 | 56 symbol_level = 1 |
47 } else if (!is_linux || is_debug || is_official_build || is_chromecast) { | 57 } else if (!is_linux || is_debug || is_official_build || is_chromecast) { |
48 # Linux is slowed by having symbols as part of the target binary, whereas | 58 # Linux is slowed by having symbols as part of the target binary, whereas |
49 # Mac and Windows have them separate, so in Release Linux, default them off, | 59 # Mac and Windows have them separate, so in Release Linux, default them off, |
50 # but keep them on for Official builds and Chromecast builds. | 60 # but keep them on for Official builds and Chromecast builds. |
51 symbol_level = 2 | 61 symbol_level = 2 |
52 } else if (using_sanitizer) { | 62 } else if (using_sanitizer) { |
53 # Sanitizers require symbols for filename suppressions to work. | 63 # Sanitizers require symbols for filename suppressions to work. |
54 symbol_level = 1 | 64 symbol_level = 1 |
55 } else { | 65 } else { |
56 symbol_level = 0 | 66 symbol_level = 0 |
57 } | 67 } |
58 } | 68 } |
59 | 69 |
60 # PGO requires full WPO. | 70 # PGO requires full WPO. |
61 if (chrome_pgo_phase > 0) { | 71 if (chrome_pgo_phase > 0) { |
62 full_wpo_on_official = true | 72 full_wpo_on_official = true |
63 } | 73 } |
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