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Implement raise() with getcontext() / setcontext()

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Justine Tunney 2023-11-05 17:52:30 -08:00
parent dd83db9567
commit 736fdb757a
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GPG key ID: BE714B4575D6E328
12 changed files with 73 additions and 97 deletions
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10
libc/calls/raise.c
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@ -23,6 +23,7 @@
#include "libc/intrin/strace.internal.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/sysv/consts/sicode.h"
#include "libc/sysv/errfuns.h"
/**
* Sends signal to self.
@ -35,6 +36,7 @@
*
* @param sig can be SIGALRM, SIGINT, SIGTERM, SIGKILL, etc.
* @return 0 on success, or nonzero on failure
* @raise EINVAL if `sig` is invalid
* @asyncsignalsafe
*/
int raise(int sig) {
@ -42,8 +44,12 @@ int raise(int sig) {
if (IsXnuSilicon()) {
rc = __syslib->__raise(sig);
} else if (IsWindows()) {
__sig_raise(sig, SI_TKILL);
rc = 0;
if (0 <= sig && sig <= 64) {
__sig_raise(sig, SI_TKILL);
rc = 0;
} else {
rc = einval();
}
} else {
rc = sys_tkill(gettid(), sig, 0);
}