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ARM / Mac OS X also wants to invalidate icache after jitting.

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llvm-svn: 59291
This commit is contained in:
Evan Cheng 2008-11-14 02:33:17 +00:00
parent 3abe79e3e9
commit c6f581034a
1 changed files with 20 additions and 18 deletions
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38
lib/System/Memory.cpp
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@ -35,26 +35,28 @@ extern "C" void sys_icache_invalidate(const void *Addr, size_t len);
void llvm::sys::Memory::InvalidateInstructionCache(const void *Addr,
size_t Len) {
// icache invalidation for PPC.
// icache invalidation for PPC and ARM.
#if defined(__APPLE__)
#if (defined(__POWERPC__) || defined (__ppc__) || \
defined(_POWER) || defined(_ARCH_PPC))
#if defined(__APPLE__)
sys_icache_invalidate(Addr, Len);
#elif defined(__GNUC__)
const size_t LineSize = 32;
defined(_POWER) || defined(_ARCH_PPC)) || defined(__arm__)
sys_icache_invalidate(Addr, Len);
#endif
#else
#if (defined(__POWERPC__) || defined (__ppc__) || \
defined(_POWER) || defined(_ARCH_PPC)) && defined(__GNUC__)
const size_t LineSize = 32;
const intptr_t Mask = ~(LineSize - 1);
const intptr_t StartLine = ((intptr_t) Addr) & Mask;
const intptr_t EndLine = ((intptr_t) Addr + Len + LineSize - 1) & Mask;
const intptr_t Mask = ~(LineSize - 1);
const intptr_t StartLine = ((intptr_t) Addr) & Mask;
const intptr_t EndLine = ((intptr_t) Addr + Len + LineSize - 1) & Mask;
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("dcbf 0, %0" : : "r"(Line));
asm volatile("sync");
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("icbi 0, %0" : : "r"(Line));
asm volatile("isync");
#endif
#endif // end PPC
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("dcbf 0, %0" : : "r"(Line));
asm volatile("sync");
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("icbi 0, %0" : : "r"(Line));
asm volatile("isync");
#endif
#endif // end apple
}