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separated backtrace functionality from leak_detective, used in

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leak_detective
	mutex profiling
	signal handler
This commit is contained in:
Martin Willi
2008-11-05 13:58:19 +00:00
parent 2abc66b977
commit f7237cf37a
7 changed files with 303 additions and 198 deletions
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src/charon/daemon.c
+9 -47
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@@ -16,11 +16,6 @@
* for more details.
*/
#ifdef HAVE_DLADDR
# define _GNU_SOURCE
# include <dlfcn.h>
#endif /* HAVE_DLADDR */
#include <stdio.h>
#include <sys/prctl.h>
#include <signal.h>
@@ -34,9 +29,6 @@
#include <errno.h>
#include <pwd.h>
#include <grp.h>
#ifdef HAVE_BACKTRACE
# include <execinfo.h>
#endif /* HAVE_BACKTRACE */
#ifdef CAPABILITIES
#include <sys/capability.h>
#endif /* CAPABILITIES */
@@ -44,6 +36,7 @@
#include "daemon.h"
#include <library.h>
#include <utils/backtrace.h>
#include <config/traffic_selector.h>
#include <config/proposal.h>
@@ -433,45 +426,13 @@ static bool initialize(private_daemon_t *this, bool syslog, level_t levels[])
*/
static void segv_handler(int signal)
{
#ifdef HAVE_BACKTRACE
void *array[20];
size_t size;
char **strings;
size_t i;
size = backtrace(array, 20);
strings = backtrace_symbols(array, size);
DBG1(DBG_JOB, "thread %u received %s. Dumping %d frames from stack:",
pthread_self(), signal == SIGSEGV ? "SIGSEGV" : "SIGILL", size);
for (i = 0; i < size; i++)
{
#ifdef HAVE_DLADDR
Dl_info info;
if (dladdr(array[i], &info))
{
void *ptr = array[i];
if (strstr(info.dli_fname, ".so"))
{
ptr = (void*)(array[i] - info.dli_fbase);
}
DBG1(DBG_DMN, " %s [%p]", info.dli_fname, ptr);
}
else
{
#endif /* HAVE_DLADDR */
DBG1(DBG_DMN, " %s", strings[i]);
#ifdef HAVE_DLADDR
}
#endif /* HAVE_DLADDR */
}
free (strings);
#else /* !HAVE_BACKTRACE */
DBG1(DBG_DMN, "thread %u received %s",
pthread_self(), signal == SIGSEGV ? "SIGSEGV" : "SIGILL");
#endif /* HAVE_BACKTRACE */
backtrace_t *backtrace;
DBG1(DBG_DMN, "thread %u received %d", pthread_self(), signal);
backtrace = backtrace_create(2);
backtrace->log(backtrace, stderr);
backtrace->destroy(backtrace);
DBG1(DBG_DMN, "killing ourself, received critical signal");
raise(SIGKILL);
}
@@ -534,6 +495,7 @@ private_daemon_t *daemon_create(void)
sigaddset(&action.sa_mask, SIGHUP);
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGILL, &action, NULL);
sigaction(SIGBUS, &action, NULL);
action.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &action, NULL);