-
Notifications
You must be signed in to change notification settings - Fork 15k
/
create_browser_v8_snapshot_file_name_fuse.patch
156 lines (137 loc) · 6.69 KB
/
create_browser_v8_snapshot_file_name_fuse.patch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ryan Manuel <ryanm@cypress.io>
Date: Thu, 4 Aug 2022 22:37:01 -0500
Subject: Create browser v8 snapshot file name fuse
By default, chromium sets up one v8 snapshot to be used in all v8 contexts. This patch allows consumers
to have a dedicated browser process v8 snapshot defined by the file `browser_v8_context_snapshot.bin`.
diff --git a/content/app/content_main_runner_impl.cc b/content/app/content_main_runner_impl.cc
index 328f8b800c36544f7906536416ac61dc87cc45d3..2f973efcf3e38edcc74060929339fc21bdf0aa3b 100644
--- a/content/app/content_main_runner_impl.cc
+++ b/content/app/content_main_runner_impl.cc
@@ -37,6 +37,7 @@
#include "base/process/memory.h"
#include "base/process/process.h"
#include "base/process/process_handle.h"
+#include "base/strings/string_piece.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/task/thread_pool/thread_pool_instance.h"
@@ -232,8 +233,13 @@ std::string GetSnapshotDataDescriptor(const base::CommandLine& command_line) {
#endif
-void LoadV8SnapshotFile(const base::CommandLine& command_line) {
+void LoadV8SnapshotFile(const raw_ptr<ContentMainDelegate> delegate, const base::CommandLine& command_line) {
const gin::V8SnapshotFileType snapshot_type = GetSnapshotType(command_line);
+ base::StringPiece browser_v8_snapshot_file_name = delegate->GetBrowserV8SnapshotFilename();
+ if (!browser_v8_snapshot_file_name.empty()) {
+ gin::V8Initializer::LoadV8SnapshotFromFileName(browser_v8_snapshot_file_name, snapshot_type);
+ return;
+ }
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
base::FileDescriptorStore& file_descriptor_store =
base::FileDescriptorStore::GetInstance();
@@ -262,11 +268,12 @@ bool ShouldLoadV8Snapshot(const base::CommandLine& command_line,
#endif // V8_USE_EXTERNAL_STARTUP_DATA
-void LoadV8SnapshotIfNeeded(const base::CommandLine& command_line,
+void LoadV8SnapshotIfNeeded(const raw_ptr<ContentMainDelegate> delegate,
+ const base::CommandLine& command_line,
const std::string& process_type) {
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
if (ShouldLoadV8Snapshot(command_line, process_type))
- LoadV8SnapshotFile(command_line);
+ LoadV8SnapshotFile(delegate, command_line);
#endif // V8_USE_EXTERNAL_STARTUP_DATA
}
@@ -917,7 +924,7 @@ int ContentMainRunnerImpl::Initialize(ContentMainParams params) {
return TerminateForFatalInitializationError();
#endif // BUILDFLAG(IS_ANDROID) && (ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE)
- LoadV8SnapshotIfNeeded(command_line, process_type);
+ LoadV8SnapshotIfNeeded(delegate_, command_line, process_type);
blink::TrialTokenValidator::SetOriginTrialPolicyGetter(
base::BindRepeating([]() -> blink::OriginTrialPolicy* {
diff --git a/content/public/app/content_main_delegate.cc b/content/public/app/content_main_delegate.cc
index ce6b8b454d0cc57ec4de81c7a19b5e0f0087a162..c421d3b5bc02b702e89c714d3d521207cbca156b 100644
--- a/content/public/app/content_main_delegate.cc
+++ b/content/public/app/content_main_delegate.cc
@@ -5,6 +5,7 @@
#include "content/public/app/content_main_delegate.h"
#include "base/check.h"
+#include "base/strings/string_piece.h"
#include "build/build_config.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/common/content_client.h"
@@ -55,6 +56,10 @@ ContentMainDelegate::CreateVariationsIdsProvider() {
return nullptr;
}
+base::StringPiece ContentMainDelegate::GetBrowserV8SnapshotFilename() {
+ return base::StringPiece();
+}
+
ContentClient* ContentMainDelegate::CreateContentClient() {
return new ContentClient();
}
diff --git a/content/public/app/content_main_delegate.h b/content/public/app/content_main_delegate.h
index f81430b564a3cf44c2168e18c4c53c6629353d75..34a5531cd33b439114a796adc71af7251b6b1f81 100644
--- a/content/public/app/content_main_delegate.h
+++ b/content/public/app/content_main_delegate.h
@@ -9,6 +9,7 @@
#include <string>
#include <vector>
+#include "base/strings/string_piece.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
#include "content/public/common/main_function_params.h"
@@ -149,6 +150,8 @@ class CONTENT_EXPORT ContentMainDelegate {
virtual bool ShouldHandleConsoleControlEvents();
#endif
+ virtual base::StringPiece GetBrowserV8SnapshotFilename();
+
protected:
friend class ContentClientCreator;
friend class ContentClientInitializer;
diff --git a/gin/v8_initializer.cc b/gin/v8_initializer.cc
index 34a65998cbaa22241fd7c6cc60d8ab01982ca3ce..68c12e9bb1f334d6fec050018da8bc0a6db4a850 100644
--- a/gin/v8_initializer.cc
+++ b/gin/v8_initializer.cc
@@ -512,8 +512,7 @@ void V8Initializer::GetV8ExternalSnapshotData(const char** snapshot_data_out,
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
-// static
-void V8Initializer::LoadV8Snapshot(V8SnapshotFileType snapshot_file_type) {
+void V8Initializer::LoadV8SnapshotFromFileName(base::StringPiece file_name, V8SnapshotFileType snapshot_file_type) {
if (g_mapped_snapshot) {
// TODO(crbug.com/802962): Confirm not loading different type of snapshot
// files in a process.
@@ -522,10 +521,17 @@ void V8Initializer::LoadV8Snapshot(V8SnapshotFileType snapshot_file_type) {
base::MemoryMappedFile::Region file_region;
base::File file =
- OpenV8File(GetSnapshotFileName(snapshot_file_type), &file_region);
+ OpenV8File(file_name.data(), &file_region);
LoadV8SnapshotFromFile(std::move(file), &file_region, snapshot_file_type);
}
+// static
+void V8Initializer::LoadV8Snapshot(V8SnapshotFileType snapshot_file_type) {
+ const char* file_name = GetSnapshotFileName(snapshot_file_type);
+
+ LoadV8SnapshotFromFileName(file_name, snapshot_file_type);
+}
+
// static
void V8Initializer::LoadV8SnapshotFromFile(
base::File snapshot_file,
diff --git a/gin/v8_initializer.h b/gin/v8_initializer.h
index 13a120c7fe8e69a44793473f3124c33d572a07a3..acb294780873c1d84546eb2b9acc00f86838361d 100644
--- a/gin/v8_initializer.h
+++ b/gin/v8_initializer.h
@@ -9,6 +9,7 @@
#include "base/files/file.h"
#include "base/files/memory_mapped_file.h"
+#include "base/strings/string_piece.h"
#include "build/build_config.h"
#include "gin/array_buffer.h"
#include "gin/gin_export.h"
@@ -42,6 +43,7 @@ class GIN_EXPORT V8Initializer {
int* snapshot_size_out);
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
+ static void LoadV8SnapshotFromFileName(base::StringPiece file_name, V8SnapshotFileType snapshot_file_type);
// Load V8 snapshot from default resources, if they are available.
static void LoadV8Snapshot(
V8SnapshotFileType snapshot_file_type = V8SnapshotFileType::kDefault);