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| author | Alex Rønne Petersen <alex@alexrp.com> | 2024-11-04 18:30:36 +0100 |
|---|---|---|
| committer | Alex Rønne Petersen <alex@alexrp.com> | 2024-12-11 00:10:17 +0100 |
| commit | da018f972619377e8c044c5c27ebf231be262bb3 (patch) | |
| tree | 00faa647aca74f648677b74828301ab0f8c14fc0 /src/Compilation.zig | |
| parent | 7d0087707634028308d3a870883249bfa59d94b8 (diff) | |
| download | zig-da018f972619377e8c044c5c27ebf231be262bb3.tar.gz zig-da018f972619377e8c044c5c27ebf231be262bb3.zip | |
std.os.linux: Add unwinding protection in clone() implementations.
Whatever was in the frame pointer register prior to clone() will no longer be
valid in the child process, so zero it to protect FP-based unwinders. Similarly,
mark the link register as undefined to protect DWARF-based unwinders.
This is only zeroing the frame pointer(s) on Arm/Thumb because of an LLVM
assembler bug: https://github.com/llvm/llvm-project/issues/115891
Diffstat (limited to 'src/Compilation.zig')
0 files changed, 0 insertions, 0 deletions