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| author | Daniel Dunbar <daniel@zuster.org> | 2009-09-12 23:29:02 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-09-12 23:29:02 +0000 |
| commit | 299f11f662c420d4da6ad11cf1a0863b26fcd20b (patch) | |
| tree | c1cd6296b9c08c7f9aaacb668254fc199ca08214 | |
| parent | 7cb384dcca3f1ccfc993182ee4b972f7fffc8ffa (diff) | |
| download | llvm-299f11f662c420d4da6ad11cf1a0863b26fcd20b.tar.gz llvm-299f11f662c420d4da6ad11cf1a0863b26fcd20b.tar.bz2 llvm-299f11f662c420d4da6ad11cf1a0863b26fcd20b.tar.xz | |
Experimental fix for PR4960.
- Could we just always implement this as __clear_cache for __GNUC__?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81655 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/System/Memory.cpp | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/lib/System/Memory.cpp b/lib/System/Memory.cpp index 375c73cf02..e2d838dce0 100644 --- a/lib/System/Memory.cpp +++ b/lib/System/Memory.cpp @@ -37,13 +37,16 @@ void llvm::sys::Memory::InvalidateInstructionCache(const void *Addr, // icache invalidation for PPC and ARM. #if defined(__APPLE__) -#if (defined(__POWERPC__) || defined (__ppc__) || \ + +# if (defined(__POWERPC__) || defined (__ppc__) || \ defined(_POWER) || defined(_ARCH_PPC)) || defined(__arm__) sys_icache_invalidate(Addr, Len); -#endif +# endif + #else -#if (defined(__POWERPC__) || defined (__ppc__) || \ - defined(_POWER) || defined(_ARCH_PPC)) && defined(__GNUC__) + +# if (defined(__POWERPC__) || defined (__ppc__) || \ + defined(_POWER) || defined(_ARCH_PPC)) && defined(__GNUC__) const size_t LineSize = 32; const intptr_t Mask = ~(LineSize - 1); @@ -57,6 +60,12 @@ void llvm::sys::Memory::InvalidateInstructionCache(const void *Addr, for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize) asm volatile("icbi 0, %0" : : "r"(Line)); asm volatile("isync"); -#endif +# elif defined(__arm__) && defined(__GNUC__) + // FIXME: Can we safely always call this for __GNUC__ everywhere? + char *Start = (char*) Addr; + char *End = Start + Len; + __clear_cache(Start, End); +# endif + #endif // end apple } |