diff options
Diffstat (limited to 'linuxthreads/attr.c')
| -rw-r--r-- | linuxthreads/attr.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/linuxthreads/attr.c b/linuxthreads/attr.c index 80f5249..a88fdb9 100644 --- a/linuxthreads/attr.c +++ b/linuxthreads/attr.c @@ -441,6 +441,7 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr) char *line = NULL; size_t linelen = 0; + uintptr_t last_to = 0; while (! feof_unlocked (fp)) { @@ -449,8 +450,9 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr) uintptr_t from; uintptr_t to; - if (sscanf (line, "%" SCNxPTR "-%" SCNxPTR, &from, &to) == 2 - && from <= (uintptr_t) __libc_stack_end + if (sscanf (line, "%" SCNxPTR "-%" SCNxPTR, &from, &to) != 2) + continue; + if (from <= (uintptr_t) __libc_stack_end && (uintptr_t) __libc_stack_end < to) { /* Found the entry. Now we have the info we need. */ @@ -461,16 +463,17 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr) #else attr->__stackaddr = (void *) to; - /* The limit might be too high. This is a bogus - situation but try to avoid making it worse. */ - if ((size_t) attr->__stacksize > (size_t) attr->__stackaddr) - attr->__stacksize = (size_t) attr->__stackaddr; + /* The limit might be too high. */ + if ((size_t) attr->__stacksize + > (size_t) attr->__stackaddr - last_to) + attr->__stacksize = (size_t) attr->__stackaddr - last_to; #endif /* We succeed and no need to look further. */ ret = 0; break; } + last_to = to; } fclose (fp); |