Changeset 173509 in webkit for trunk/Source/JavaScriptCore/ftl/FTLState.h

Timestamp:

Sep 11, 2014, 1:52:22 AM (11 years ago)

Author:

[email protected]

Message:

[JavaScriptCore] Fix FTL on platform EFL.
​https://bugs.webkit.org/show_bug.cgi?id=133571

Reviewed by Filip Pizlo.

.:

Revert r169181.

• Source/cmake/FindLIBCXXABI.cmake: Removed.
• Source/cmake/OptionsEfl.cmake:

Source/JavaScriptCore:

There are no compact_unwind sections on Linux systems so FTL crashes.
We have to parse eh_frame in FTLUnwindInfo instead of compact_unwind
and get the information for stack unwinding from there.

• CMakeLists.txt: Revert r169181.
• ftl/FTLCompile.cpp:

Change section name literals to use SECTION_NAME macro, because of architecture differencies.
(JSC::FTL::mmAllocateCodeSection):
(JSC::FTL::mmAllocateDataSection):
(JSC::FTL::compile):

• ftl/FTLJITCode.h:

We need the SECTION_NAME macro in FTLCompile and FTLLink, so we define it here.

• ftl/FTLLink.cpp:

(JSC::FTL::link):

• ftl/FTLState.h:
• ftl/FTLState.cpp:

(JSC::FTL::State::State):

• ftl/FTLUnwindInfo.h:
• ftl/FTLUnwindInfo.cpp:

Lift the eh_frame parsing method from LLVM/libcxxabi project and modify it for our purposes.
Parse eh_frame on Linux instead of compact_unwind.
(JSC::FTL::UnwindInfo::parse):

Tools:

• efl/install-dependencies: Revert r169181.
• efl/jhbuild.modules: Clone and build a custom branch.

This branch contains some fix for FTL of platform EFL.
The branch is a fork of llvm r206311.

File:

• trunk/Source/JavaScriptCore/ftl/FTLState.h (modified) (1 diff)

trunk/Source/JavaScriptCore/ftl/FTLState.h

@@ -78 +78 @@
     Vector<CString> codeSectionNames;
     Vector<CString> dataSectionNames;
-    void* compactUnwind;
-    size_t compactUnwindSize;
+    void* unwindDataSection;
+    size_t unwindDataSectionSize;
     RefPtr<DataSection> stackmapsSection;