Fangrui Song f1e68092e6 [llvm-objcopy] If input=output, preserve umask bits, otherwise drop S_ISUID/S_ISGID bits ... 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 and probably >=2.37. 2.36 and 2.36.1 have some compatibility issues. ``` Differential Revision: https://reviews.llvm.org/D97253		2021-02-24 11:10:09 -08:00
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COFF	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
ELF	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
MachO	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
wasm	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
BitcodeStripOpts.td
Buffer.cpp	[llvm-objcopy] preserve file ownership when overwritten by root	2021-02-12 18:01:43 -08:00
Buffer.h	[llvm-objcopy] preserve file ownership when overwritten by root	2021-02-12 18:01:43 -08:00
CMakeLists.txt
CommonOpts.td
CopyConfig.cpp	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
CopyConfig.h	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
InstallNameToolOpts.td
llvm-objcopy.cpp	[llvm-objcopy] If input=output, preserve umask bits, otherwise drop S_ISUID/S_ISGID bits	2021-02-24 11:10:09 -08:00
llvm-objcopy.h
ObjcopyOpts.td	[llvm-objcopy] Delete --build-id-link-{dir,input,output}	2021-02-15 11:17:32 -08:00
StripOpts.td