Hi,
I have been bitten by this too: all of my webkit browsers crash with
SIGILL since upgrading to Jessie on non SSE hardware.
This patch at least fixes the environment variable so that
JavaScriptCoreUseJIT=0 is honoured as a work-araound.
Mark
--- /tmp/VM.cpp 2015-05-18 12:04:42.183140915 +0100
+++ /tmp/VM-edited.cpp 2015-05-18 12:16:41.478098153 +0100
@@ -135,6 +135,11 @@
}
#if USE(CF)
+#if OS(UNIX)
+ char* canUseJITString = getenv("JavaScriptCoreUseJIT");
+ if (canUseJITString)
+ return !canUseJITString || atoi(canUseJITString);
+#endif // OS(UNIX)
#if COMPILER(GCC) && !COMPILER(CLANG)
// FIXME: remove this once the EWS have been upgraded to LLVM.
// Work around a bug of GCC with strict-aliasing.
@@ -146,11 +151,6 @@
RetainPtr<CFTypeRef> canUseJIT =
adoptCF(CFPreferencesCopyAppValue(canUseJITKey,
kCFPreferencesCurrentApplication));
if (canUseJIT)
return kCFBooleanTrue == canUseJIT.get();
-#endif
-
-#if USE(CF) || OS(UNIX)
- char* canUseJITString = getenv("JavaScriptCoreUseJIT");
- return !canUseJITString || atoi(canUseJITString);
#else
return true;
#endif
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