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On PowerPC, the cache-flush instructions dcbf and icbi are treated as

Browse Source 
loads. On FreeBSD, add PROT_READ page protection flag before flushing
cache.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175646 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Krzysztof Parzyszek
2013-02-20 18:24:30 +00:00
parent d983d4c6ed
commit 0464565bae
1 changed files with 4 additions and 0 deletions
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4
lib/Support/Unix/Memory.inc
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@@ -51,7 +51,11 @@ int getPosixProtectionFlags(unsigned Flags) {
llvm::sys::Memory::MF_EXEC:
return PROT_READ | PROT_WRITE | PROT_EXEC;
case llvm::sys::Memory::MF_EXEC:
#if defined(__FreeBSD__)
return PROT_READ | PROT_EXEC;
#else
return PROT_EXEC;
#endif
default:
llvm_unreachable("Illegal memory protection flag specified!");
}