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printsiginfo: add SIGSYS decoding

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* configure.ac (AC_CHECK_MEMBERS): Check for siginfo_t.si_syscall.
* signal.c (SYS_SECCOMP): Define if not yet defined.
(sigsys_codes): new xlat structure.
(printsiginfo): Decode SIGSYS.
This commit is contained in:
Дмитрий Левин 2014-03-11 22:18:40 +00:00
parent b9d4d21a61
commit bc091e3ce1
2 changed files with 21 additions and 1 deletions
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3
configure.ac
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@ -256,7 +256,8 @@ AC_CHECK_TYPES([struct user_desc],,, [#include <asm/ldt.h>])
AC_CHECK_MEMBERS([struct utsname.domainname],,, [#include <sys/utsname.h>])
AC_CHECK_MEMBERS([struct sigevent._sigev_un._pad,
struct sigevent.__pad],,, [#include <signal.h>])
struct sigevent.__pad,
siginfo_t.si_syscall],,, [#include <signal.h>])
AC_CHECK_TYPES([struct flock64],,, [#include <fcntl.h>])

19
signal.c
View File

@ -354,6 +354,7 @@ print_sigset_addr_len(struct tcb *tcp, long addr, long len)
#define BUS_ADRALN 1 /* invalid address alignment */
#define BUS_ADRERR 2 /* non-existant physical address */
#define BUS_OBJERR 3 /* object specific hardware error */
#define SYS_SECCOMP 1 /* seccomp triggered */
#define TRAP_BRKPT 1 /* process breakpoint */
#define TRAP_TRACE 2 /* process trace trap */
#define CLD_EXITED 1 /* child has exited */
@ -503,6 +504,14 @@ static const struct xlat sigbus_codes[] = {
XLAT_END
};
#ifndef SYS_SECCOMP
# define SYS_SECCOMP 1
#endif
static const struct xlat sigsys_codes[] = {
XLAT(SYS_SECCOMP),
XLAT_END
};
static void
printsigsource(const siginfo_t *sip)
{
@ -565,6 +574,9 @@ printsiginfo(siginfo_t *sip, int verbose)
case SIGBUS:
code = xlookup(sigbus_codes, sip->si_code);
break;
case SIGSYS:
code = xlookup(sigsys_codes, sip->si_code);
break;
}
}
if (code)
@ -640,6 +652,13 @@ printsiginfo(siginfo_t *sip, int verbose)
break;
}
break;
#ifdef HAVE_SIGINFO_T_SI_SYSCALL
case SIGSYS:
tprintf(", si_call_addr=%#lx, si_syscall=%d, si_arch=%u",
(unsigned long) sip->si_call_addr,
sip->si_syscall, sip->si_arch);
break;
#endif
default:
if (sip->si_pid || sip->si_uid)
printsigsource(sip);