diff options
| author | Florian Weimer <fweimer@redhat.com> | 2015-08-20 08:44:09 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2015-08-20 08:44:37 +0200 |
| commit | cd4e69ed3e4b2d51ebd3dfaa0730793cf913de77 (patch) | |
| tree | c95b512616c55ba5f40138a2dddf213f884eacf7 | |
| parent | 948e12a238715b2931cc42486db9e502ff943e54 (diff) | |
| download | glibc-cd4e69ed3e4b2d51ebd3dfaa0730793cf913de77.tar.gz glibc-cd4e69ed3e4b2d51ebd3dfaa0730793cf913de77.tar.xz glibc-cd4e69ed3e4b2d51ebd3dfaa0730793cf913de77.zip | |
nptl: Document crash due to incorrect use of locks
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86/elide.h | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index b3c9892466..c0f7f5d008 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2015-08-20 Florian Weimer <fweimer@redhat.com> + + * sysdeps/x86/elide.h (ELIDE_UNLOCK): Document crash due to + incorrect use. + 2015-08-19 Joseph Myers <joseph@codesourcery.com> [BZ #18370] diff --git a/sysdeps/x86/elide.h b/sysdeps/x86/elide.h index 47e89cfc8d..6e53288340 100644 --- a/sysdeps/x86/elide.h +++ b/sysdeps/x86/elide.h @@ -93,7 +93,9 @@ elision_adapt(signed char *adapt_count, unsigned int status) ret; \ }) -/* Returns true if lock defined by IS_LOCK_FREE was elided. */ +/* Returns true if lock defined by IS_LOCK_FREE was elided. The call + to _xend crashes if the application incorrectly tries to unlock a + lock which has not been locked. */ #define ELIDE_UNLOCK(is_lock_free) \ ({ \ |