139126 2014-12-01 06:52:32 -0800 Failed to load LLVM library at libllvmForJSC.so 2015-01-20 07:51:52 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Linux RESOLVED DUPLICATE 140049 P2 Normal --- 1 sanxiyn webkit-unassigned ossy oldest_to_newest 1051434 0 sanxiyn 2014-12-01 06:52:32 -0800 r176590. To reproduce: Tools/Scripts/build-jsc --gtk --ftl-jit WebKitBuild/Release/bin/jsc --verboseFTLCompilation=true some.js This is a regression. If I set USE_LD_GOLD to OFF it works fine. https://bugs.webkit.org/show_bug.cgi?id=137953 My understanding is that ld and gold have different defaults so that ld sets RPATH, but gold sets RUNPATH. RPATH is applied transitively but RUNPATH is not. Before, jsc had RPATH, jsc links to libjavascriptcoregtk-4.0.so, which dlopen libllvmForJSC.so using RPATH from jsc, but this doesn't happen with RUNPATH. To use RUNPATH, libjavascriptcoregtk-4.0.so should have RUNPATH, not jsc. Here is a good explanation: http://blog.qt.digia.com/blog/2011/10/28/rpath-and-runpath/ 1051806 1 ossy 2014-12-02 05:18:07 -0800 I can't reproduce this bug on Ubuntu 14.04. Maybe your ld and ld.gold have different default settings. Could you check if passing --enable-new-dtags or --disable-new-dtags to your linker fixes this issue or not? 1051816 2 sanxiyn 2014-12-02 05:48:43 -0800 How can I pass --disable-new-dtags to my linker? I am not that familiar with the build system to know. 1051817 3 sanxiyn 2014-12-02 05:53:24 -0800 By the way, I am on Ubuntu 14.04 too. I needed to do clean rebuild to get USE_LD_GOLD change to take effect. Maybe you are still using ld? 1051818 4 242406 ossy 2014-12-02 05:54:26 -0800 Created attachment 242406 test (In reply to comment #2) > How can I pass --disable-new-dtags to my linker? I am not that familiar with > the build system to know. Try the attached patch. 1051819 5 ossy 2014-12-02 05:57:05 -0800 (In reply to comment #3) > Maybe you are still using ld? No, I do use ld.gold. 1051823 6 sanxiyn 2014-12-02 06:06:18 -0800 Passing --disable-new-dtags using the attached patch does fix the issue. Thanks. 1051824 7 sanxiyn 2014-12-02 06:20:42 -0800 I found that although my system is Ubuntu 14.04, my binutils package is from Ubuntu 14.10. I installed GCC 4.9 from Ubuntu 14.10 repository, which also pulled binutils, but I forgot about it. Sorry for confusion. 1062735 8 ossy 2015-01-20 07:51:52 -0800 *** This bug has been marked as a duplicate of bug 140049 *** 242406 2014-12-02 05:54:26 -0800 2014-12-02 05:54:26 -0800 test 1.patch text/plain 697 ossy ZGlmZiAtLWdpdCBhL1NvdXJjZS9jbWFrZS9PcHRpb25zQ29tbW9uLmNtYWtlIGIvU291cmNlL2Nt YWtlL09wdGlvbnNDb21tb24uY21ha2UKaW5kZXggZDkxNzE1My4uNjc3ZGExMyAxMDA2NDQKLS0t IGEvU291cmNlL2NtYWtlL09wdGlvbnNDb21tb24uY21ha2UKKysrIGIvU291cmNlL2NtYWtlL09w dGlvbnNDb21tb24uY21ha2UKQEAgLTY3LDYgKzY3LDggQEAgaWYgKFVTRV9MRF9HT0xEKQogICAg IGlmICgiJHtMRF9WRVJTSU9OfSIgTUFUQ0hFUyAiR05VIGdvbGQiKQogICAgICAgICBzZXQoQ01B S0VfQ19GTEFHUyAiJHtDTUFLRV9DX0ZMQUdTfSAtZnVzZS1sZD1nb2xkIikKICAgICAgICAgc2V0 KENNQUtFX0NYWF9GTEFHUyAiJHtDTUFLRV9DWFhfRkxBR1N9IC1mdXNlLWxkPWdvbGQiKQorICAg ICAgICBzZXQoQ01BS0VfRVhFX0xJTktFUl9GTEFHUyAiJHtDTUFLRV9FWEVfTElOS0VSX0ZMQUdT fSAtV2wsLS1kaXNhYmxlLW5ldy1kdGFncyIpCisgICAgICAgIHNldChDTUFLRV9TSEFSRURfTElO S0VSX0ZMQUdTICIke0NNQUtFX0VYRV9MSU5LRVJfRkxBR1N9IC1XbCwtLWRpc2FibGUtbmV3LWR0 YWdzIikKICAgICBlbHNlICgpCiAgICAgICAgIG1lc3NhZ2UoV0FSTklORyAiR05VIGdvbGQgbGlu a2VyIGlzbid0IGF2YWlsYWJsZSwgdXNpbmcgdGhlIGRlZmF1bHQgc3lzdGVtIGxpbmtlci4iKQog ICAgIGVuZGlmICgpCg==