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Make some systemic improvements

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- add vdso dump utility
- tests now log stack usage
- rename g_ftrace to __ftrace
- make internal spinlocks go faster
- add conformant c11 atomics library
- function tracing now logs stack usage
- make function call tracing thread safe
- add -X unsecure (no ssl) mode to redbean
- munmap() has more consistent behavior now
- pacify fsync() calls on python unit tests
- make --strace flag work better in redbean
- start minimizing and documenting compiler flags
This commit is contained in:
Justine Tunney 2022-05-18 16:41:29 -07:00
parent c6bbca55e9
commit 9208c83f7a
141 changed files with 1948 additions and 1411 deletions
Download patch file Download diff file Expand all files Collapse all files

16
libc/calls/sigaltstack.c
View file

@ -22,10 +22,11 @@
#include "libc/calls/struct/sigaltstack.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/errfuns.h"
static noasan void sigaltstack2bsd(struct sigaltstack_bsd *bsd,
const struct sigaltstack *linux) {
static void sigaltstack2bsd(struct sigaltstack_bsd *bsd,
const struct sigaltstack *linux) {
void *sp;
int flags;
size_t size;
@ -37,8 +38,8 @@ static noasan void sigaltstack2bsd(struct sigaltstack_bsd *bsd,
bsd->ss_size = size;
}
static noasan void sigaltstack2linux(struct sigaltstack *linux,
const struct sigaltstack_bsd *bsd) {
static void sigaltstack2linux(struct sigaltstack *linux,
const struct sigaltstack_bsd *bsd) {
void *sp;
int flags;
size_t size;
@ -69,10 +70,11 @@ static noasan void sigaltstack2linux(struct sigaltstack *linux,
* @param old if non-null will receive current signal alt stack
* @return 0 on success, or -1 w/ errno
*/
noasan int sigaltstack(const struct sigaltstack *neu, struct sigaltstack *old) {
int sigaltstack(const struct sigaltstack *neu, struct sigaltstack *old) {
int rc;
void *b;
const void *a;
char buf[2][128];
struct sigaltstack_bsd bsd;
if (IsAsan() && ((old && __asan_check(old, sizeof(*old)).kind) ||
(neu && (__asan_check(neu, sizeof(*neu)).kind ||
@ -106,6 +108,8 @@ noasan int sigaltstack(const struct sigaltstack *neu, struct sigaltstack *old) {
} else {
rc = enosys();
}
STRACE("sigaltstack() → %d% m", rc);
STRACE("sigaltstack(%s, [%s]) → %d% m",
DescribeSigaltstk(buf[0], sizeof(buf[0]), 0, neu),
DescribeSigaltstk(buf[0], sizeof(buf[0]), 0, old), rc);
return rc;
}