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| author | Paul Eggert <eggert@cs.ucla.edu> | 2020-12-29 00:45:49 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2020-12-29 00:46:46 -0800 |
| commit | 69fda43b8dd795c3658869633ca0708ed3134006 (patch) | |
| tree | e86b216293d450bfbecaaf8230c3247444b668c4 /malloc/Makefile | |
| parent | 016c64236dee6e28f09c10ba38f274aad7205f95 (diff) | |
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free: preserve errno [BZ#17924]
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>
Diffstat (limited to 'malloc/Makefile')
| -rw-r--r-- | malloc/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/malloc/Makefile b/malloc/Makefile index 37173b29ea..39ffaa7161 100644 --- a/malloc/Makefile +++ b/malloc/Makefile @@ -34,6 +34,7 @@ tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \ tst-interpose-nothread \ tst-interpose-thread \ tst-alloc_buffer \ + tst-free-errno \ tst-malloc-tcache-leak \ tst-malloc_info tst-mallinfo2 \ tst-malloc-too-large \ |