riscv/musl - musl - Gitea: Git with a cup of tea

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Author	SHA1	Message	Date
Rich Felker	e678fc6f32	replace system's install command with a shell script the historical (non-standardized) install command is really inappropriate for installing binaries/libraries on a system that utilizes memory-mapped executable files. rather than replacing an existing file atomically, it overwrites the existing file. this can cause running programs to see a partially-modified version of the file, resulting in unpredictable behavior, or SIGBUS. a MAP_COPY mode for mmap would get around this problem, but Linux lacks MAP_COPY. the shell script added with this commit works around the problem by writing temporary files and moving them into place. unlike the historical install utility, it also support a -l option for installing a symbolic link atomically, via the same method.	13 years ago

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SHA1

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Date

Rich Felker

e678fc6f32

replace system's install command with a shell script

the historical (non-standardized) install command is really
inappropriate for installing binaries/libraries on a system that
utilizes memory-mapped executable files. rather than replacing an
existing file atomically, it overwrites the existing file. this can
cause running programs to see a partially-modified version of the
file, resulting in unpredictable behavior, or SIGBUS. a MAP_COPY mode
for mmap would get around this problem, but Linux lacks MAP_COPY.

the shell script added with this commit works around the problem by
writing temporary files and moving them into place. unlike the
historical install utility, it also support a -l option for installing
a symbolic link atomically, via the same method.

13 years ago

1 Commits (4b539a826b64d846d02a6cde9d6bcff22472af88)