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Bug 1194072 - IonMonkey: MIPS32: Add an option to mark JIT pages as non-writable. r=nbp CLOSED TREE

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--HG--
extra : histedit_source : f4b8845bd4deea656f32d3d9c58809d8cacf00a4
This commit is contained in:
Heiher 2015-08-13 08:23:22 -07:00
parent 96798fb9ef
commit 49f14db98f
2 changed files with 4 additions and 2 deletions
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3
js/src/jit/mips32/Assembler-mips32.cpp
View File

@ -155,11 +155,12 @@ InstImm::extractImm16(BOffImm16* dest)
// Used to patch jumps created by MacroAssemblerMIPSCompat::jumpWithPatch.
void
jit::PatchJump(CodeLocationJump& jump_, CodeLocationLabel label)
jit::PatchJump(CodeLocationJump& jump_, CodeLocationLabel label, ReprotectCode reprotect)
{
Instruction* inst1 = (Instruction*)jump_.raw();
Instruction* inst2 = inst1->next();
MaybeAutoWritableJitCode awjc(inst1, 8, reprotect);
Assembler::UpdateLuiOriValue(inst1, inst2, (uint32_t)label.raw());
AutoFlushICache::flush(uintptr_t(inst1), 8);

3
js/src/jit/mips32/Assembler-mips32.h
View File

@ -633,7 +633,8 @@ class Operand
};
void
PatchJump(CodeLocationJump& jump_, CodeLocationLabel label);
PatchJump(CodeLocationJump& jump_, CodeLocationLabel label,
ReprotectCode reprotect = DontReprotect);
void
PatchBackedge(CodeLocationJump& jump_, CodeLocationLabel label, JitRuntime::BackedgeTarget target);