Mercurial > hg > octave-lojdl > gnulib-hg
changeset 11625:dfac57b1ec9f
memchr, memchr2: add valgrind exception
* lib/memchr.valgrind: New file.
* lib/memchr2.valgrind: New file.
* modules/memchr (Files): Distribute valgrind file.
* modules/memchr2 (Files): Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
author | Eric Blake <ebb9@byu.net> |
---|---|
date | Mon, 15 Jun 2009 11:04:21 -0600 |
parents | 82b5a4d577af |
children | e54d8a239545 |
files | ChangeLog lib/memchr.valgrind lib/memchr2.valgrind modules/memchr modules/memchr2 |
diffstat | 5 files changed, 36 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,11 @@ 2009-06-15 Eric Blake <ebb9@byu.net> + memchr, memchr2: add valgrind exception + * lib/memchr.valgrind: New file. + * lib/memchr2.valgrind: New file. + * modules/memchr (Files): Distribute valgrind file. + * modules/memchr2 (Files): Likewise. + docs: memchr is no longer obsolete * MODULES.html.sh: Move memchr from obsolete to string.h section. * lib/string.in.h (memchr): Simplify logic.
new file mode 100644 --- /dev/null +++ b/lib/memchr.valgrind @@ -0,0 +1,14 @@ +# Suppress a valgrind message about use of uninitialized memory in memchr(). +# POSIX states that when the character is found, memchr must not read extra +# bytes in an overestimated length (for example, where memchr is used to +# implement strnlen). However, we use a safe word read to provide a speedup. +{ + memchr-value4 + Memcheck:Value4 + fun:rpl_memchr +} +{ + memchr-value8 + Memcheck:Value8 + fun:rpl_memchr +}
new file mode 100644 --- /dev/null +++ b/lib/memchr2.valgrind @@ -0,0 +1,14 @@ +# Suppress a valgrind message about use of uninitialized memory in memchr2(). +# Like memchr, it is safe to overestimate the length when the terminator +# is guaranteed to be found. In this case, we may end up reading a word +# that is partially uninitialized, but this use is OK for a speedup. +{ + memchr2-value4 + Memcheck:Value4 + fun:memchr2 +} +{ + memchr2-value8 + Memcheck:Value8 + fun:memchr2 +}