[PATCH] D97253: [llvm-objcopy] If input=output, preserve umask bits, otherwise drop S_ISUID/S_ISGID bits
Fangrui Song via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Feb 22 21:34:52 PST 2021
MaskRay created this revision.
MaskRay added reviewers: manojgupta, jcai19, jhenderson.
Herald added subscribers: abrachet, emaste.
Herald added a reviewer: alexshap.
Herald added a reviewer: rupprecht.
MaskRay requested review of this revision.
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This makes the behavior similar to cp
chmod u+s,g+s,o+x a
sudo llvm-strip a -o b
// With this patch, b drops set-user-ID and set-group-ID bits.
// sudo cp a b => b does not have set-user-ID or set-group-ID bits.
This also changes the behavior for the following case:
chmod u+s,g+s,o+x a
llvm-strip a
// a preserves set-user-ID and set-group-ID bits.
// This matches binutils<2.36.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D97253
Files:
llvm/test/tools/llvm-objcopy/ELF/mirror-permissions-unix.test
llvm/test/tools/llvm-objcopy/ELF/mirror-permissions-win.test
llvm/tools/llvm-objcopy/llvm-objcopy.cpp
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