cosmopolitan/libc/calls/siginfo2cosmo.c

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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/calls/struct/siginfo-meta.internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/dce.h"
#include "libc/sysv/consts/sig.h"
privileged void __siginfo2cosmo(struct siginfo *si,
const union siginfo_meta *m) {
void *si_addr;
int32_t si_signo;
int32_t si_errno;
int32_t si_code;
int32_t si_pid;
int32_t si_uid;
int32_t si_status;
int32_t si_timerid;
int32_t si_overrun;
union sigval si_value;
if (IsLinux()) {
*si = m->linux;
return;
} else if (IsFreebsd()) {
si_signo = m->freebsd.si_signo;
si_errno = m->freebsd.si_errno;
si_code = m->freebsd.si_code;
si_pid = m->freebsd.si_pid;
si_uid = m->freebsd.si_uid;
si_status = m->freebsd.si_status;
si_timerid = m->freebsd.si_timerid;
si_overrun = m->freebsd.si_overrun;
si_addr = m->freebsd.si_addr;
si_value = m->freebsd.si_value;
} else if (IsXnu()) {
si_signo = m->xnu.si_signo;
si_errno = m->xnu.si_errno;
si_code = m->xnu.si_code;
si_pid = m->xnu.si_pid;
si_uid = m->xnu.si_uid;
si_status = m->xnu.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->xnu.si_addr;
si_value = m->xnu.si_value;
} else if (IsOpenbsd()) {
si_signo = m->openbsd.si_signo;
si_errno = m->openbsd.si_errno;
si_code = m->openbsd.si_code;
si_pid = m->openbsd.si_pid;
si_uid = m->openbsd.si_uid;
si_status = m->openbsd.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->openbsd.si_addr;
si_value = m->openbsd.si_value;
} else if (IsNetbsd()) {
si_signo = m->netbsd.si_signo;
si_errno = m->netbsd.si_errno;
si_code = m->netbsd.si_code;
si_pid = m->netbsd.si_pid;
si_uid = m->netbsd.si_uid;
si_status = m->netbsd.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->netbsd.si_addr;
si_value = m->netbsd.si_value;
} else {
notpossible;
}
*si = (struct siginfo){0};
si->si_signo = si_signo;
si->si_errno = si_errno;
si->si_code = si_code;
si->si_value = si_value;
if (si_signo == SIGILL || //
si_signo == SIGFPE || //
si_signo == SIGSEGV || //
si_signo == SIGBUS || //
si_signo == SIGTRAP) {
si->si_addr = si_addr;
} else if (si_signo == SIGALRM) {
si->si_timerid = si_timerid;
si->si_overrun = si_overrun;
} else {
si->si_pid = si_pid;
si->si_uid = si_uid;
}
}