Bug 138298 – [GTK] FTL JIT is not working (does not build and does not run)

• Status: RESOLVED
• Resolution: FIXED
• Component: JavaScriptCore

[Akos Kiss]

When trying to enable FTL JIT for GTK (by building with: Tools/Scripts/update-webkitgtk-libs && Tools/Scripts/update-webkitgtk-libs llvm && Tools/Scripts/build-jsc --gtk --ftl-jit), there are several failures.

First, when building, CMake complains about LIBCXXABI:

CMake Error at Source/cmake/OptionsGTK.cmake:317 (find_package):
  By not providing "FindLIBCXXABI.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "LIBCXXABI", but CMake did not find one.

If we overcome that, then LLVM bails out with some runtime errors, e.g.:
  
sunspider-1.0/string-validate-input.js.ftl-eager: jsc: RuntimeDyldELF.cpp:283: void llvm::RuntimeDyldELF::resolveX86_64Relocation(const llvm::SectionEntry &, uint64_t, uint64_t, uint32_t, int64_t, uint64_t): Assertion `RealOffset <= (2147483647) && RealOffset >= (-2147483647-1)' failed.
sunspider-1.0/string-validate-input.js.ftl-eager: Aborted (core dumped)
sunspider-1.0/string-validate-input.js.ftl-eager: ERROR: Unexpected exit code: 134

[Akos Kiss]

Created attachment 240825 [details]
Proposed patch.

No regressions with run-javascriptcore-tests on x86_64/Linux/GTK.

[Carlos Garcia Campos]

Comment on attachment 240825 [details]
Proposed patch.

Thanks!

[WebKit Commit Bot]

Comment on attachment 240825 [details]
Proposed patch.

Clearing flags on attachment: 240825

Committed r175465: <http://trac.webkit.org/changeset/175465>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.