diff options
Diffstat (limited to 'lib/log.c')
| -rw-r--r-- | lib/log.c | 10 |
1 files changed, 8 insertions, 2 deletions
@@ -312,7 +312,7 @@ zlog_signal(int signo, const char *action, siginfo_t *siginfo, } #undef DUMP - zlog_backtrace_sigsafe(PRI); + zlog_backtrace_sigsafe(PRI, program_counter); #undef PRI #undef LOC } @@ -320,9 +320,10 @@ zlog_signal(int signo, const char *action, siginfo_t *siginfo, /* Log a backtrace using only async-signal-safe functions. Needs to be enhanced to support syslog logging. */ void -zlog_backtrace_sigsafe(int priority) +zlog_backtrace_sigsafe(int priority, void *program_counter) { #ifdef HAVE_GLIBC_BACKTRACE + static const char pclabel[] = "Program counter: "; void *array[20]; int size; char buf[100]; @@ -338,6 +339,11 @@ zlog_backtrace_sigsafe(int priority) s = str_append(LOC," stack frames:\n"); #define DUMP(FP) { \ + if (program_counter) \ + { \ + write(fileno(FP),pclabel,sizeof(pclabel)-1); \ + backtrace_symbols_fd(&program_counter, 1, fileno(FP)); \ + } \ write(fileno(FP),buf,s-buf); \ backtrace_symbols_fd(array, size, fileno(FP)); \ } |