matthieu/frr
1
0
Fork 0
forked from Mirror/frr
Code Pull requests Activity

[lib] Put symbolic backtrace on system log

Browse source 
When BGP crashes, sometimes all we get to see is syslog.
This commit is contained in:
Stephen Hemminger 2009-03-09 16:09:50 -07:00 committed by Paul Jakma
parent e5862a2df2
commit 94fc1dd41c
1 changed files with 15 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
lib/log.c
View file

@ -435,10 +435,10 @@ zlog_backtrace_sigsafe(int priority, void *program_counter)
{
#ifdef HAVE_STACK_TRACE
static const char pclabel[] = "Program counter: ";
void *array[20];
void *array[64];
int size;
char buf[100];
char *s;
char *s, **bt = NULL;
#define LOC s,buf+sizeof(buf)-s
#ifdef HAVE_GLIBC_BACKTRACE
@ -485,20 +485,29 @@ zlog_backtrace_sigsafe(int priority, void *program_counter)
syslog_sigsafe(priority|zlog_default->facility,buf,s-buf);
{
int i;
#ifdef HAVE_GLIBC_BACKTRACE
bt = backtrace_symbols(array, size);
#endif
/* Just print the function addresses. */
for (i = 0; i < size; i++)
{
s = buf;
s = str_append(LOC,"[bt ");
s = num_append(LOC,i);
s = str_append(LOC,"] 0x");
s = hex_append(LOC,(u_long)(array[i]));
if (bt)
s = str_append(LOC, bt[i]);
else {
s = str_append(LOC,"[bt ");
s = num_append(LOC,i);
s = str_append(LOC,"] 0x");
s = hex_append(LOC,(u_long)(array[i]));
}
*s = '\0';
if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR])
vty_log_fixed(buf,s-buf);
if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG])
syslog_sigsafe(priority|zlog_default->facility,buf,s-buf);
}
if (bt)
free(bt);
}
}
#undef DUMP