- JCE.emitByte(0xCD); // Interrupt - Just a marker identifying the stub!
- return JCE.finishGVStub(F);
-}
-
-void X86JITInfo::emitFunctionStubAtAddr(const Function* F, void *Fn, void *Stub,
- JITCodeEmitter &JCE) {
- // Note, we cast to intptr_t here to silence a -pedantic warning that
- // complains about casting a function pointer to a normal pointer.
- JCE.startGVStub(F, Stub, 5);
- JCE.emitByte(0xE9);
-#if defined (X86_64_JIT)
- assert(((((intptr_t)Fn-JCE.getCurrentPCValue()-5) << 32) >> 32) ==
- ((intptr_t)Fn-JCE.getCurrentPCValue()-5)
- && "PIC displacement does not fit in displacement field!");
-#endif
- JCE.emitWordLE((intptr_t)Fn-JCE.getCurrentPCValue()-4);
- JCE.finishGVStub(F);
+ // This used to use 0xCD, but that value is used by JITMemoryManager to
+ // initialize the buffer with garbage, which means it may follow a
+ // noreturn function call, confusing X86CompilationCallback2. PR 4929.
+ JCE.emitByte(0xCE); // Interrupt - Just a marker identifying the stub!
+ return Result;