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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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Chromium Code Reviews
Issue 2989793003:
Revert of [Bindings] Create and use V8 context snapshots (Closed)
