blob: fac7a44117628ad3ee615a8c3f4b429920c89282 [file] [log] [blame]
#include "defs.h"
#include DEF_MPERS_TYPE(siginfo_t)
#include <signal.h>
#include <linux/audit.h>
#include MPERS_DEFS
#ifndef IN_MPERS
#include "printsiginfo.h"
#endif
#include "xlat/audit_arch.h"
#include "xlat/sigbus_codes.h"
#include "xlat/sigchld_codes.h"
#include "xlat/sigfpe_codes.h"
#include "xlat/sigill_codes.h"
#include "xlat/siginfo_codes.h"
#include "xlat/sigpoll_codes.h"
#include "xlat/sigprof_codes.h"
#include "xlat/sigsegv_codes.h"
#include "xlat/sigsys_codes.h"
#include "xlat/sigtrap_codes.h"
#ifdef SIGEMT
# include "xlat/sigemt_codes.h"
#endif
#ifndef SI_FROMUSER
# define SI_FROMUSER(sip) ((sip)->si_code <= 0)
#endif
static void
printsigsource(const siginfo_t *sip)
{
tprintf(", si_pid=%u, si_uid=%u",
(unsigned int) sip->si_pid,
(unsigned int) sip->si_uid);
}
static void
printsigval(const siginfo_t *sip, bool verbose)
{
if (!verbose)
tprints(", ...");
else
tprintf(", si_value={int=%d, ptr=%#lx}",
sip->si_int,
(unsigned long) sip->si_ptr);
}
static void
print_si_code(int si_signo, int si_code)
{
const char *code = xlookup(siginfo_codes, si_code);
if (!code) {
switch (si_signo) {
case SIGTRAP:
code = xlookup(sigtrap_codes, si_code);
break;
case SIGCHLD:
code = xlookup(sigchld_codes, si_code);
break;
case SIGPOLL:
code = xlookup(sigpoll_codes, si_code);
break;
case SIGPROF:
code = xlookup(sigprof_codes, si_code);
break;
case SIGILL:
code = xlookup(sigill_codes, si_code);
break;
#ifdef SIGEMT
case SIGEMT:
code = xlookup(sigemt_codes, si_code);
break;
#endif
case SIGFPE:
code = xlookup(sigfpe_codes, si_code);
break;
case SIGSEGV:
code = xlookup(sigsegv_codes, si_code);
break;
case SIGBUS:
code = xlookup(sigbus_codes, si_code);
break;
case SIGSYS:
code = xlookup(sigsys_codes, si_code);
break;
}
}
if (code)
tprints(code);
else
tprintf("%#x", si_code);
}
static void
print_si_info(const siginfo_t *sip, bool verbose)
{
if (sip->si_errno) {
tprints(", si_errno=");
if ((unsigned) sip->si_errno < nerrnos
&& errnoent[sip->si_errno])
tprints(errnoent[sip->si_errno]);
else
tprintf("%d", sip->si_errno);
}
if (SI_FROMUSER(sip)) {
switch (sip->si_code) {
case SI_USER:
printsigsource(sip);
break;
case SI_TKILL:
printsigsource(sip);
break;
#if defined HAVE_SIGINFO_T_SI_TIMERID && defined HAVE_SIGINFO_T_SI_OVERRUN
case SI_TIMER:
tprintf(", si_timerid=%#x, si_overrun=%d",
sip->si_timerid, sip->si_overrun);
printsigval(sip, verbose);
break;
#endif
default:
printsigsource(sip);
if (sip->si_ptr)
printsigval(sip, verbose);
break;
}
} else {
switch (sip->si_signo) {
case SIGCHLD:
printsigsource(sip);
tprints(", si_status=");
if (sip->si_code == CLD_EXITED)
tprintf("%d", sip->si_status);
else
printsignal(sip->si_status);
if (!verbose)
tprints(", ...");
else
tprintf(", si_utime=%llu, si_stime=%llu",
(unsigned long long) sip->si_utime,
(unsigned long long) sip->si_stime);
break;
case SIGILL: case SIGFPE:
case SIGSEGV: case SIGBUS:
tprintf(", si_addr=%#lx",
(unsigned long) sip->si_addr);
break;
case SIGPOLL:
switch (sip->si_code) {
case POLL_IN: case POLL_OUT: case POLL_MSG:
tprintf(", si_band=%ld",
(long) sip->si_band);
break;
}
break;
#ifdef HAVE_SIGINFO_T_SI_SYSCALL
case SIGSYS:
tprintf(", si_call_addr=%#lx, si_syscall=__NR_%s, si_arch=",
(unsigned long) sip->si_call_addr,
syscall_name(sip->si_syscall));
printxval(audit_arch, sip->si_arch, "AUDIT_ARCH_???");
break;
#endif
default:
if (sip->si_pid || sip->si_uid)
printsigsource(sip);
if (sip->si_ptr)
printsigval(sip, verbose);
}
}
}
#ifdef IN_MPERS
static
#endif
void
printsiginfo(const siginfo_t *sip, bool verbose)
{
if (sip->si_signo == 0) {
tprints("{}");
return;
}
tprints("{si_signo=");
printsignal(sip->si_signo);
tprints(", si_code=");
print_si_code(sip->si_signo, sip->si_code);
#ifdef SI_NOINFO
if (sip->si_code != SI_NOINFO)
#endif
print_si_info(sip, verbose);
tprints("}");
}
MPERS_PRINTER_DECL(void, printsiginfo_at)(struct tcb *tcp, long addr)
{
siginfo_t si;
if (!umove_or_printaddr(tcp, addr, &si))
printsiginfo(&si, verbose(tcp));
}