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kdump: Pretty-print signal codes.

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MFC after:	1 week
This commit is contained in:
Jilles Tjoelker 2012-09-22 12:40:00 +00:00
parent 787a64ddd2
commit 5677eef9a7
2 changed files with 57 additions and 5 deletions
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14
usr.bin/kdump/kdump.c
View File

@ -1242,11 +1242,15 @@ ktrpsig(struct ktr_psig *psig)
printf("SIG%s ", signames[psig->signo]);
else
printf("SIG %d ", psig->signo);
if (psig->action == SIG_DFL)
printf("SIG_DFL code=0x%x\n", psig->code);
else {
printf("caught handler=0x%lx mask=0x%x code=0x%x\n",
(u_long)psig->action, psig->mask.__bits[0], psig->code);
if (psig->action == SIG_DFL) {
printf("SIG_DFL code=");
sigcodename(psig->signo, psig->code);
putchar('\n');
} else {
printf("caught handler=0x%lx mask=0x%x code=",
(u_long)psig->action, psig->mask.__bits[0]);
sigcodename(psig->signo, psig->code);
putchar('\n');
}
}

48
usr.bin/kdump/mksubr
View File

@ -388,7 +388,13 @@ auto_switch_type "schedpolicyname" "SCHED_[A-Z]+[[:space:]]+[0-9]+"
auto_switch_type "sendfileflagsname" "SF_[A-Z]+[[:space:]]+[0-9]+" "sys/socket.h"
auto_or_type "shmatname" "SHM_[A-Z]+[[:space:]]+[0-9]{6}+" "sys/shm.h"
auto_switch_type "shutdownhowname" "SHUT_[A-Z]+[[:space:]]+[0-9]+" "sys/socket.h"
auto_switch_type "sigbuscodename" "BUS_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigchldcodename" "CLD_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigfpecodename" "FPE_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigprocmaskhowname" "SIG_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigillcodename" "ILL_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigsegvcodename" "SEGV_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_switch_type "sigtrapcodename" "TRAP_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
auto_if_type "sockdomainname" "PF_[[:alnum:]]+[[:space:]]+" "sys/socket.h"
auto_if_type "sockfamilyname" "AF_[[:alnum:]]+[[:space:]]+" "sys/socket.h"
auto_if_type "sockipprotoname" "IPPROTO_[[:alnum:]]+[[:space:]]+" "netinet/in.h"
@ -501,4 +507,46 @@ cat <<_EOF_
printf(">");
}
/*
* AUTO - Special
*
* Check general codes first, then defer to signal-specific codes.
*/
void
sigcodename(int sig, int code)
{
switch (code) {
_EOF_
egrep "^#[[:space:]]*define[[:space:]]+SI_[A-Z]+[[:space:]]+0(x[0-9abcdef]+)?[[:space:]]*" \
$include_dir/sys/signal.h | grep -v SI_UNDEFINED | \
awk '{ for (i = 1; i <= NF; i++) \
if ($i ~ /define/) \
break; \
++i; \
printf "\tcase %s:\n\t\tprintf(\"%s\");\n\t\tbreak;\n", $i, $i }'
cat <<_EOF_
default:
switch (sig) {
case SIGILL:
sigillcodename(code);
break;
case SIGBUS:
sigbuscodename(code);
break;
case SIGSEGV:
sigsegvcodename(code);
break;
case SIGFPE:
sigfpecodename(code);
break;
case SIGTRAP:
sigtrapcodename(code);
break;
case SIGCHLD:
sigchldcodename(code);
break;
default:
printf("<invalid=%#x>", code);
}
}
}