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x86jit: Oops, don't pad INT3s in prelinked blocks.

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Fixes #7007.
This commit is contained in:
Unknown W. Brackets 2014-10-15 22:07:56 -07:00
parent 80e243655d
commit ef6d583542
1 changed files with 9 additions and 4 deletions
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13
Core/MIPS/JitCommon/JitBlockCache.cpp
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@ -415,12 +415,17 @@ void JitBlockCache::LinkBlockExits(int i) {
#elif defined(_M_IX86) || defined(_M_X64)
XEmitter emit(b.exitPtrs[e]);
// Okay, this is a bit ugly, but we check here if it already has a JMP.
// That means it doesn't have a full exit to pad with INT 3.
bool prelinked = *emit.GetCodePtr() == 0xE9;
emit.JMP(blocks_[destinationBlock].checkedEntry, true);
ptrdiff_t actualSize = emit.GetWritableCodePtr() - b.exitPtrs[e];
int pad = JitBlockCache::GetBlockExitSize() - (int)actualSize;
for (int i = 0; i < pad; ++i) {
emit.INT3();
if (!prelinked) {
ptrdiff_t actualSize = emit.GetWritableCodePtr() - b.exitPtrs[e];
int pad = JitBlockCache::GetBlockExitSize() - (int)actualSize;
for (int i = 0; i < pad; ++i) {
emit.INT3();
}
}
#elif defined(PPC)
PPCXEmitter emit(b.exitPtrs[e]);