diff options
Diffstat (limited to 'lib/libc/gen/pmadvise.c')
-rw-r--r-- | lib/libc/gen/pmadvise.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/gen/pmadvise.c b/lib/libc/gen/pmadvise.c index 60cef63..0dc77e3 100644 --- a/lib/libc/gen/pmadvise.c +++ b/lib/libc/gen/pmadvise.c @@ -8,9 +8,19 @@ __FBSDID("$FreeBSD$"); #include <sys/mman.h> +#include <errno.h> int posix_madvise(void *address, size_t size, int how) { - return madvise(address, size, how); + int ret, saved_errno; + + saved_errno = errno; + if (madvise(address, size, how) == -1) { + ret = errno; + errno = saved_errno; + } else { + ret = 0; + } + return (ret); } |