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* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* free: preserve errno [BZ#17924]Paul Eggert2020-12-291-0/+131
In the next release of POSIX, free must preserve errno <https://www.austingroupbugs.net/view.php?id=385>. Modify __libc_free to save and restore errno, so that any internal munmap etc. syscalls do not disturb the caller's errno. Add a test malloc/tst-free-errno.c (almost all by Bruno Haible), and document that free preserves errno. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>