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| 1 # Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 # Use of this source code is governed by a BSD-style license that can be |
| 3 # found in the LICENSE file. |
| 4 |
| 5 # Targets in ths file are to take a V8 context snapshot on build time. |
| 6 # Created V8 context snapshot is used in |
| 7 # third_party/WebKit/Source/bindings/core/v8/V8ContextSnapshot.{cpp|h}. |
| 8 # to speedup creating a V8 context and setting up around it. |
| 9 |
| 10 import("//build/config/c++/c++.gni") |
| 11 import("//v8/snapshot_toolchain.gni") |
| 12 |
| 13 if (is_android) { |
| 14 import("//build/config/android/rules.gni") |
| 15 } |
| 16 |
| 17 if (is_android) { |
| 18 android_assets("v8_context_snapshot_assets") { |
| 19 deps = [ |
| 20 ":v8_context_snapshot", |
| 21 ] |
| 22 sources = [ |
| 23 "$root_out_dir/v8_context_snapshot.bin", |
| 24 ] |
| 25 disable_compression = true |
| 26 } |
| 27 } |
| 28 |
| 29 group("v8_context_snapshot") { |
| 30 if (!is_chromeos) { |
| 31 public_deps = [ |
| 32 ":generate_v8_context_snapshot", |
| 33 ] |
| 34 } |
| 35 } |
| 36 |
| 37 if (!is_chromeos && !is_android) { |
| 38 action("generate_v8_context_snapshot") { |
| 39 script = "run.py" |
| 40 output_file = "$root_out_dir/v8_context_snapshot.bin" |
| 41 output_path = rebase_path(output_file, root_build_dir) |
| 42 |
| 43 args = [ |
| 44 "./" + rebase_path( |
| 45 get_label_info( |
| 46 ":v8_context_snapshot_generator($v8_snapshot_toolchain)", |
| 47 "root_out_dir") + "/v8_context_snapshot_generator", |
| 48 root_build_dir), |
| 49 "--output_file=$output_path", |
| 50 ] |
| 51 |
| 52 outputs = [ |
| 53 output_file, |
| 54 ] |
| 55 |
| 56 deps = [ |
| 57 ":v8_context_snapshot_generator($v8_snapshot_toolchain)", |
| 58 ] |
| 59 } |
| 60 |
| 61 # This config disables a link time optimization "ICF", which may merge differe
nt |
| 62 # functions into one if the function signature and body of them are identical. |
| 63 # |
| 64 # ICF breaks 1:1 mappings of the external references for V8 snapshot, so we |
| 65 # disable it while taking a V8 snapshot. |
| 66 config("disable_icf") { |
| 67 visibility = [ ":*" ] # Only targets in this file can depend on this. |
| 68 if (is_win) { |
| 69 ldflags = [ "/OPT:NOICF" ] |
| 70 } else if (is_posix && !is_mac) { |
| 71 ldflags = [ "-Wl,--icf=none" ] |
| 72 } |
| 73 } |
| 74 |
| 75 executable("v8_context_snapshot_generator") { |
| 76 sources = [ |
| 77 "v8_context_snapshot_generator.cc", |
| 78 ] |
| 79 |
| 80 deps = [ |
| 81 "//gin:gin", |
| 82 "//mojo/edk/system:system", |
| 83 "//third_party/WebKit/public:blink", |
| 84 "//v8", |
| 85 ] |
| 86 |
| 87 if (is_linux && (is_component_build || using_sanitizer) && |
| 88 use_custom_libcxx) { |
| 89 deps += [ "//buildtools/third_party/libc++:libc++" ] |
| 90 } |
| 91 |
| 92 configs += [ |
| 93 "//v8:external_startup_data", |
| 94 ":disable_icf", |
| 95 ] |
| 96 } |
| 97 } |
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