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Show more details about signals received by traced processess

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* strace.c [!USE_PROCFS] (trace): Differentiate output format depending
on PTRACE_GETSIGINFO success or failure.  In the former case, use
printsiginfo() to show more details about received signal.
This commit is contained in:
Дмитрий Левин 2011-03-10 21:20:35 +00:00
parent c15dfc7961
commit 6b7a261ff8
1 changed files with 19 additions and 10 deletions
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29
strace.c
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@ -2637,25 +2637,34 @@ Process %d attached (waiting for parent)\n",
}
if (cflag != CFLAG_ONLY_STATS
&& (qual_flags[WSTOPSIG(status)] & QUAL_SIGNAL)) {
unsigned long addr = 0;
long pc = 0;
siginfo_t si;
#if defined(PT_CR_IPSR) && defined(PT_CR_IIP)
# define PSR_RI 41
long psr;
long pc = 0;
long psr = 0;
upeek(tcp, PT_CR_IPSR, &psr);
upeek(tcp, PT_CR_IIP, &pc);
# define PSR_RI 41
pc += (psr >> PSR_RI) & 0x3;
# define PC_FORMAT_STR " @ %lx"
# define PC_FORMAT_ARG pc
#else
# define PC_FORMAT_STR "%s"
# define PC_FORMAT_ARG ""
#endif
si.si_addr = NULL;
if (ptrace(PTRACE_GETSIGINFO, pid, 0, &si) == 0)
addr = (unsigned long) si.si_addr;
printleader(tcp);
tprintf("--- %s (%s) @ %lx (%lx) ---",
signame(WSTOPSIG(status)),
strsignal(WSTOPSIG(status)), pc, addr);
if (ptrace(PTRACE_GETSIGINFO, pid, 0, &si) == 0) {
tprintf("--- ");
printsiginfo(&si, verbose(tcp));
tprintf(" (%s)" PC_FORMAT_STR " ---",
strsignal(WSTOPSIG(status)),
PC_FORMAT_ARG);
} else
tprintf("--- %s by %s" PC_FORMAT_STR " ---",
strsignal(WSTOPSIG(status)),
signame(WSTOPSIG(status)),
PC_FORMAT_ARG);
printtrailer();
}
if (((tcp->flags & TCB_ATTACHED) ||