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| author | Zach van Rijn <me@zv.io> | 2022-06-10 10:44:01 +0000 |
|---|---|---|
| committer | Zach van Rijn <me@zv.io> | 2022-10-21 18:34:01 -0500 |
| commit | b86743e2b6013cb965564d3d4a4b87f0e01b952e (patch) | |
| tree | af8362c2936adc9b78fbd49b70d010e668cbf005 /user/llvm8/fix-memory-mf_exec-on-aarch64.patch | |
| parent | 156f4768d73b15ec0df4299b78e700d25d69ce20 (diff) | |
| download | packages-b86743e2b6013cb965564d3d4a4b87f0e01b952e.tar.gz packages-b86743e2b6013cb965564d3d4a4b87f0e01b952e.tar.bz2 packages-b86743e2b6013cb965564d3d4a4b87f0e01b952e.tar.xz packages-b86743e2b6013cb965564d3d4a4b87f0e01b952e.zip | |
user/llvm8: add patch for PROT_READ on aarch64 and ppc64. fixes #711.
Diffstat (limited to 'user/llvm8/fix-memory-mf_exec-on-aarch64.patch')
| -rw-r--r-- | user/llvm8/fix-memory-mf_exec-on-aarch64.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/user/llvm8/fix-memory-mf_exec-on-aarch64.patch b/user/llvm8/fix-memory-mf_exec-on-aarch64.patch new file mode 100644 index 000000000..a70b39733 --- /dev/null +++ b/user/llvm8/fix-memory-mf_exec-on-aarch64.patch @@ -0,0 +1,33 @@ +Fix failures in AllocationTests/MappedMemoryTest.* on aarch64: + + Failing Tests (8): + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.AllocAndRelease/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.DuplicateNear/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.EnabledWrite/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.MultipleAllocAndRelease/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.SuccessiveNear/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.UnalignedNear/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.ZeroNear/3 + LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.ZeroSizeNear/3 + +Upstream-Issue: https://bugs.llvm.org/show_bug.cgi?id=14278#c10 + +--- a/lib/Support/Unix/Memory.inc ++++ b/lib/Support/Unix/Memory.inc +@@ -54,7 +54,7 @@ + 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(__linux__) && (defined(__aarch64__) || defined(__powerpc64__))) + // 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 +@@ -62,6 +62,7 @@ + // executing these instructions will result in a segmentation fault. + // Somehow, this problem is not present on Linux, but it does happen + // on FreeBSD. ++ // The same problem is present even on aarch64 Linux (at least on musl). + return PROT_READ | PROT_EXEC; + #else + return PROT_EXEC; |