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Fix warnings

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This change fixes Cosmopolitan so it has fewer opinions about compiler
warnings. The whole repository had to be cleaned up to be buildable in
-Werror -Wall mode. This lets us benefit from things like strict const
checking. Some actual bugs might have been caught too.
This commit is contained in:
Justine Tunney 2023-09-01 20:49:13 -07:00
parent e2b3c3618e
commit 0d748ad58e
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GPG key ID: BE714B4575D6E328
571 changed files with 1306 additions and 1888 deletions
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13
libc/intrin/asan.c
View file

@ -129,13 +129,13 @@ struct AsanExtra {
};
struct AsanSourceLocation {
const char *filename;
char *filename;
int line;
int column;
};
struct AsanAccessInfo {
const char *addr;
char *addr;
const uintptr_t first_bad_addr;
size_t size;
bool iswrite;
@ -143,7 +143,7 @@ struct AsanAccessInfo {
};
struct AsanGlobal {
const char *addr;
char *addr;
size_t size;
size_t size_with_redzone;
const void *name;
@ -517,7 +517,6 @@ struct AsanFault __asan_check(const void *p, long n) {
*/
struct AsanFault __asan_check_str(const char *p) {
uint64_t w;
struct AsanFault f;
signed char c, k, *s;
s = SHADOW(p);
if (OverlapsShadowSpace(p, 1)) {
@ -1059,7 +1058,8 @@ static struct AsanExtra *__asan_get_extra(const void *p, size_t *c) {
long x, n;
struct AsanExtra *e;
f = (intptr_t)p >> 16;
if (!kisdangerous(p) && (n = _weaken(dlmalloc_usable_size)(p)) > sizeof(*e) &&
if (!kisdangerous(p) &&
(n = _weaken(dlmalloc_usable_size)((void *)p)) > sizeof(*e) &&
!ckd_add(&x, (intptr_t)p, n) && x <= 0x800000000000 &&
(LIKELY(f == (int)((x - 1) >> 16)) || !kisdangerous((void *)(x - 1))) &&
(LIKELY(f == (int)((x = x - sizeof(*e)) >> 16)) ||
@ -1227,7 +1227,6 @@ void *__asan_memalign(size_t align, size_t size) {
}
void *__asan_calloc(size_t n, size_t m) {
char *p;
struct AsanTrace bt;
__asan_trace(&bt, RBP);
if (ckd_mul(&n, n, m)) n = -1;
@ -1498,7 +1497,7 @@ void __asan_init(int argc, char **argv, char **envp, intptr_t *auxv) {
__asan_shadow_existing_mappings();
__asan_map_shadow((uintptr_t)__executable_start, _end - __executable_start);
__asan_map_shadow(0, 4096);
__asan_poison(0, getauxval(AT_PAGESZ), kAsanNullPage);
__asan_poison((void *)__veil("r", 0L), getauxval(AT_PAGESZ), kAsanNullPage);
if (!IsWindows()) {
sys_mprotect((void *)0x7fff8000, 0x10000, PROT_READ);
}