diff options
Diffstat (limited to 'llvm/lib/Support/Unix')
| -rw-r--r-- | llvm/lib/Support/Unix/Memory.inc | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/Support/Unix/Memory.inc b/llvm/lib/Support/Unix/Memory.inc index 3b003362959..a0927da50e4 100644 --- a/llvm/lib/Support/Unix/Memory.inc +++ b/llvm/lib/Support/Unix/Memory.inc @@ -58,14 +58,13 @@ 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__) +#if (defined(__FreeBSD__) || defined(__POWERPC__) || defined (__ppc__) || \ + defined(_POWER) || defined(_ARCH_PPC)) // On PowerPC, having an executable page that has no read permission // can have unintended consequences. The function InvalidateInstruction- // Cache uses instructions dcbf and icbi, both of which are treated by // the processor as loads. If the page has no read permissions, // executing these instructions will result in a segmentation fault. - // Somehow, this problem is not present on Linux, but it does happen - // on FreeBSD. return PROT_READ | PROT_EXEC; #else return PROT_EXEC; |
