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/* strsig.cc
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <cygtls.h>
#include <stdio.h>
#include <string.h>
#include <sys/uio.h>
struct sigdesc
{
int n;
const char *name;
const char *str;
};
#define __signals_common \
_s(SIGHUP, "Hangup"), /* 1 */ \
_s(SIGINT, "Interrupt"), /* 2 */ \
_s(SIGQUIT, "Quit"), /* 3 */ \
_s(SIGILL, "Illegal instruction"), /* 4 */ \
_s(SIGTRAP, "Trace/breakpoint trap"), /* 5 */ \
_s2(SIGABRT, "Aborted", /* 6 */ \
SIGIOT, "Aborted"), \
_s(SIGEMT, "EMT instruction"), /* 7 */ \
_s(SIGFPE, "Floating point exception"), /* 8 */ \
_s(SIGKILL, "Killed"), /* 9 */ \
_s(SIGBUS, "Bus error"), /* 10 */ \
_s(SIGSEGV, "Segmentation fault"), /* 11 */ \
_s(SIGSYS, "Bad system call"), /* 12 */ \
_s(SIGPIPE, "Broken pipe"), /* 13 */ \
_s(SIGALRM, "Alarm clock"), /* 14 */ \
_s(SIGTERM, "Terminated"), /* 15 */ \
_s(SIGURG, "Urgent I/O condition"), /* 16 */ \
_s(SIGSTOP, "Stopped (signal)"), /* 17 */ \
_s(SIGTSTP, "Stopped"), /* 18 */ \
_s(SIGCONT, "Continued"), /* 19 */ \
_s2(SIGCHLD, "Child exited", /* 20 */ \
SIGCLD, "Child exited"), \
_s(SIGTTIN, "Stopped (tty input)"), /* 21 */ \
_s(SIGTTOU, "Stopped (tty output)"), /* 22 */ \
_s2(SIGIO, "I/O possible", /* 23 */ \
SIGPOLL, "I/O possible"), \
_s(SIGXCPU, "CPU time limit exceeded"), /* 24 */ \
_s(SIGXFSZ, "File size limit exceeded"), /* 25 */ \
_s(SIGVTALRM, "Virtual timer expired"), /* 26 */ \
_s(SIGPROF, "Profiling timer expired"), /* 27 */ \
_s(SIGWINCH, "Window changed"), /* 28 */ \
_s2(SIGPWR, "Power failure", /* 29 */ \
SIGLOST, "Resource lost"), \
_s(SIGUSR1, "User defined signal 1"), /* 30 */ \
_s(SIGUSR2, "User defined signal 2"), /* 31 */
#ifdef __x86_64__
# define __signals \
__signals_common \
_s(SIGRTMIN, "Real-time signal 0"), /* 32 */ \
_s(SIGRTMIN + 1, "Real-time signal 1"), /* 33 */ \
_s(SIGRTMIN + 2, "Real-time signal 2"), /* 34 */ \
_s(SIGRTMIN + 3, "Real-time signal 3"), /* 35 */ \
_s(SIGRTMIN + 4, "Real-time signal 4"), /* 36 */ \
_s(SIGRTMIN + 5, "Real-time signal 5"), /* 37 */ \
_s(SIGRTMIN + 6, "Real-time signal 6"), /* 38 */ \
_s(SIGRTMIN + 7, "Real-time signal 7"), /* 39 */ \
_s(SIGRTMIN + 8, "Real-time signal 8"), /* 40 */ \
_s(SIGRTMIN + 9, "Real-time signal 9"), /* 41 */ \
_s(SIGRTMIN + 10, "Real-time signal 10"), /* 42 */ \
_s(SIGRTMIN + 11, "Real-time signal 11"), /* 43 */ \
_s(SIGRTMIN + 12, "Real-time signal 12"), /* 44 */ \
_s(SIGRTMIN + 13, "Real-time signal 13"), /* 45 */ \
_s(SIGRTMIN + 14, "Real-time signal 14"), /* 46 */ \
_s(SIGRTMIN + 15, "Real-time signal 15"), /* 47 */ \
_s(SIGRTMIN + 16, "Real-time signal 16"), /* 48 */ \
_s(SIGRTMIN + 17, "Real-time signal 17"), /* 49 */ \
_s(SIGRTMIN + 18, "Real-time signal 18"), /* 50 */ \
_s(SIGRTMIN + 19, "Real-time signal 19"), /* 51 */ \
_s(SIGRTMIN + 20, "Real-time signal 20"), /* 52 */ \
_s(SIGRTMIN + 21, "Real-time signal 21"), /* 53 */ \
_s(SIGRTMIN + 22, "Real-time signal 22"), /* 54 */ \
_s(SIGRTMIN + 23, "Real-time signal 23"), /* 55 */ \
_s(SIGRTMIN + 24, "Real-time signal 24"), /* 56 */ \
_s(SIGRTMIN + 25, "Real-time signal 25"), /* 57 */ \
_s(SIGRTMIN + 26, "Real-time signal 26"), /* 58 */ \
_s(SIGRTMIN + 27, "Real-time signal 27"), /* 59 */ \
_s(SIGRTMIN + 28, "Real-time signal 28"), /* 60 */ \
_s(SIGRTMIN + 29, "Real-time signal 29"), /* 61 */ \
_s(SIGRTMIN + 30, "Real-time signal 30"), /* 62 */ \
_s(SIGRTMIN + 31, "Real-time signal 31"), /* 63 */ \
_s(SIGRTMAX, "Real-time signal 32") /* 64 */
#else
# define __signals \
__signals_common \
_s2(SIGRTMIN, "Real-time signal 0", /* 32 */ \
SIGRTMAX, "Real-time signal 0")
#endif
#define _s(n, s) #n
#define _s2(n, s, n1, s1) #n
const char *sys_sigabbrev[] =
{
NULL,
__signals
};
#undef _s
#undef _s2
#define _s(n, s) s
#define _s2(n, s, n1, s1) s
const char *sys_siglist[] =
{
NULL,
__signals
};
#undef _s
#undef _s2
#define _s(n, s) {n, #n, s}
#define _s2(n, s, n1, s1) {n, #n, s}, {n, #n1, #s1}
static const sigdesc siglist[] =
{
__signals,
{0, NULL, NULL}
};
extern "C" char *
strsignal (int signo)
{
const char *sigstring = "Unknown signal %d";
for (int i = 0; siglist[i].n; i++)
if (siglist[i].n == signo)
{
sigstring = siglist[i].str;
break;
}
__small_sprintf (_my_tls.locals.signamebuf, sigstring, signo);
return _my_tls.locals.signamebuf;
}
extern "C" int
strtosigno (const char *name)
{
for (int i = 0; siglist[i].n; i++)
if (strcmp (siglist[i].name, name) == 0)
return siglist[i].n;
return 0;
}
#define ADD(str) \
{ \
v->iov_base = (void *)(str); \
v->iov_len = strlen ((char *)v->iov_base); \
v ++; \
iov_cnt ++; \
}
extern "C" void
psiginfo (const siginfo_t *info, const char *s)
{
struct iovec iov[5];
struct iovec *v = iov;
int iov_cnt = 0;
char buf[64];
if (s != NULL && *s != '\0')
{
ADD (s);
ADD (": ");
}
ADD (strsignal (info->si_signo));
if (info->si_signo > 0 && info->si_signo < NSIG)
{
switch (info->si_signo)
{
case SIGILL:
case SIGBUS:
case SIGFPE:
case SIGSEGV:
snprintf (buf, sizeof(buf),
" (%d [%p])", info->si_code, info->si_addr);
break;
case SIGCHLD:
snprintf (buf, sizeof(buf),
" (%d %d %d %u)", info->si_code, info->si_pid,
info->si_status, info->si_uid);
break;
/* FIXME: implement si_band
case SIGPOLL:
fprintf (stderr, " (%d %ld)", info->si_code, info->si_band);
break;
*/
default:
snprintf (buf, sizeof(buf),
" (%d %d %u)", info->si_code, info->si_pid,
info->si_uid);
}
ADD (buf);
}
#ifdef __SCLE
ADD ((stderr->_flags & __SCLE) ? "\r\n" : "\n");
#else
ADD ("\n");
#endif
fflush (stderr);
writev (fileno (stderr), iov, iov_cnt);
}
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