8000 fix: don't export private V8 symbols that can cause native node modules to crash by miniak · Pull Request #18619 · electron/electron · GitHub
[go: up one dir, main page]
More Web Proxy on the site http://driver.im/
Skip to content

fix: don't export private V8 symbols that can cause native node modules 8000 to crash #18619

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jun 4, 2019
Merged

fix: don't export private V8 symbols that can cause native node modules to crash #18619

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions 1 patches/common/v8/.patches
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,3 +5,4 @@ deps_provide_more_v8_backwards_compatibility.patch
dcheck.patch
export_symbols_needed_for_windows_build.patch
workaround_an_undefined_symbol_error.patch
do_not_export_private_v8_symbols_on_windows.patch
52 changes: 52 additions & 0 deletions patches/common/v8/do_not_export_private_v8_symbols_on_windows.patch
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,52 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tomas Rycl <torycl@microsoft.com>
Date: Mon, 13 May 2019 15:48:48 +0200
Subject: Do not export private V8 symbols on Windows

This change stops private V8 symbols and internal crt methods being exported.
It fixes an issue where native node modules can import
incorrect CRT methods and crash on Windows.
It also reduces size of node.lib by 75%.

This patch can be safely removed if, when it is removed, `node.lib` does not
contain any standard C++ library exports (e.g. `std::ostringstream`).

diff --git a/BUILD.gn b/BUILD.gn
index 1acc7006545bd4ff6112b444758bde4c16d0c3e5..748d700cead149f5cdeebcfe11d07516db3d6a86 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -269,6 +269,10 @@ config("internal_config") {
":v8_header_features",
]

+ if (!is_component_build && is_electron_build) {
+ defines += [ "HIDE_PRIVATE_SYMBOLS" ]
+ }
+
if (is_component_build || is_electron_build) {
defines += [ "BUILDING_V8_SHARED" ]
}
diff --git a/src/base/macros.h b/src/base/macros.h
index ad70e9820ddb4a63639ca7738c1836cb87766db5..d40be9b57294583f74594d88d9b7d7b937b2db3c 100644
--- a/src/base/macros.h
+++ b/src/base/macros.h
@@ -414,13 +414,17 @@ bool is_inbounds(float_t v) {
#ifdef V8_OS_WIN

// Setup for Windows shared library export.
+#if defined(HIDE_PRIVATE_SYMBOLS)
+#define V8_EXPORT_PRIVATE
+#else //if !defined(HIDE_PRIVATE_SYMBOLS)
#ifdef BUILDING_V8_SHARED
#define V8_EXPORT_PRIVATE __declspec(dllexport)
#elif USING_V8_SHARED
#define V8_EXPORT_PRIVATE __declspec(dllimport)
-#else
+#else //!(BUILDING_V8_SHARED || USING_V8_SHARED)
#define V8_EXPORT_PRIVATE
-#endif // BUILDING_V8_SHARED
+#endif
+#endif

#else // V8_OS_WIN

0