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astobj2: Add backtrace to log_bad_ao2.

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* Compile __ast_assert_failed unconditionally.
* Use __ast_assert_failed to log messages from log_bad_ao2
* Remove calls to ast_assert(0) that happen after log_bad_ao2 was run.

Change-Id: I48f1af44b2718ad74a421ff75cb6397b924a9751
changes/37/4037/1
Corey Farrell 9 years ago
parent f166681c12
commit dd873bcada
6 changed files with 42 additions and 37 deletions
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4
include/asterisk/utils.h
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@ -849,8 +849,10 @@ int ast_parse_digest(const char *digest, struct ast_http_digest *d, int request,
#define DO_CRASH_NORETURN
#endif
void DO_CRASH_NORETURN __ast_assert_failed(int condition, const char *condition_str,
const char *file, int line, const char *function);
#ifdef AST_DEVMODE
void DO_CRASH_NORETURN __ast_assert_failed(int condition, const char *condition_str, const char *file, int line, const char *function);
#define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
static void force_inline _ast_assert(int condition, const char *condition_str, const char *file, int line, const char *function)
{

25
main/astobj2.c
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@ -116,21 +116,17 @@ static struct astobj2 *INTERNAL_OBJ(void *user_data)
struct astobj2 *p;
if (!user_data) {
ast_log(LOG_ERROR, "user_data is NULL\n");
__ast_assert_failed(0, "user_data is NULL", __FILE__, __LINE__, __PRETTY_FUNCTION__);
return NULL;
}
p = (struct astobj2 *) ((char *) user_data - sizeof(*p));
if (AO2_MAGIC != p->priv_data.magic) {
if (p->priv_data.magic) {
ast_log(LOG_ERROR, "bad magic number 0x%x for object %p\n",
p->priv_data.magic, user_data);
} else {
ast_log(LOG_ERROR,
"bad magic number for object %p. Object is likely destroyed.\n",
user_data);
}
ast_assert(0);
char bad_magic[100];
snprintf(bad_magic, sizeof(bad_magic), "bad magic number 0x%x for object %p",
p->priv_data.magic, user_data);
__ast_assert_failed(0, bad_magic, __FILE__, __LINE__, __PRETTY_FUNCTION__);
return NULL;
}
@ -157,7 +153,6 @@ int __ao2_lock(void *user_data, enum ao2_lock_req lock_how, const char *file, co
int res = 0;
if (obj == NULL) {
ast_assert(0);
return -1;
}
@ -216,7 +211,6 @@ int __ao2_unlock(void *user_data, const char *file, const char *func, int line,
int current_value;
if (obj == NULL) {
ast_assert(0);
return -1;
}
@ -265,7 +259,6 @@ int __ao2_trylock(void *user_data, enum ao2_lock_req lock_how, const char *file,
int res = 0;
if (obj == NULL) {
ast_assert(0);
return -1;
}
@ -385,7 +378,6 @@ void *ao2_object_get_lockaddr(void *user_data)
struct astobj2_lock *obj_mutex;
if (obj == NULL) {
ast_assert(0);
return NULL;
}
@ -409,7 +401,6 @@ static int internal_ao2_ref(void *user_data, int delta, const char *file, int li
int ret;
if (obj == NULL) {
ast_assert(0);
return -1;
}
@ -504,10 +495,6 @@ int __ao2_ref_debug(void *user_data, int delta, const char *tag, const char *fil
}
}
if (obj == NULL) {
ast_assert(0);
}
return old_refcount;
}

36
main/astobj2_container.c
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@ -103,8 +103,11 @@ static int internal_ao2_link(struct ao2_container *self, void *obj_new, int flag
enum ao2_lock_req orig_lock;
struct ao2_container_node *node;
if (!is_ao2_object(obj_new) || !is_ao2_object(self)
|| !self->v_table || !self->v_table->new_node || !self->v_table->insert) {
if (!is_ao2_object(obj_new) || !is_ao2_object(self)) {
return 0;
}
if (!self->v_table || !self->v_table->new_node || !self->v_table->insert) {
/* Sanity checks. */
ast_assert(0);
return 0;
@ -187,8 +190,6 @@ void *__ao2_unlink_debug(struct ao2_container *c, void *user_data, int flags,
const char *tag, const char *file, int line, const char *func)
{
if (!is_ao2_object(user_data)) {
/* Sanity checks. */
ast_assert(0);
return NULL;
}
@ -202,8 +203,6 @@ void *__ao2_unlink_debug(struct ao2_container *c, void *user_data, int flags,
void *__ao2_unlink(struct ao2_container *c, void *user_data, int flags)
{
if (!is_ao2_object(user_data)) {
/* Sanity checks. */
ast_assert(0);
return NULL;
}
@ -268,7 +267,11 @@ static void *internal_ao2_traverse(struct ao2_container *self, enum search_flags
struct ao2_container *multi_container = NULL;
struct ao2_iterator *multi_iterator = NULL;
if (!is_ao2_object(self) || !self->v_table || !self->v_table->traverse_first
if (!is_ao2_object(self)) {
return NULL;
}
if (!self->v_table || !self->v_table->traverse_first
|| !self->v_table->traverse_next) {
/* Sanity checks. */
ast_assert(0);
@ -512,7 +515,6 @@ void ao2_iterator_restart(struct ao2_iterator *iter)
{
if (!is_ao2_object(iter->c)) {
ast_log(LOG_ERROR, "Iterator container is not valid.\n");
ast_assert(0);
return;
}
@ -577,7 +579,11 @@ static void *internal_ao2_iterator_next(struct ao2_iterator *iter, const char *t
struct ao2_container_node *node;
void *ret;
if (!is_ao2_object(iter->c) || !iter->c->v_table || !iter->c->v_table->iterator_next) {
if (!is_ao2_object(iter->c)) {
return NULL;
}
if (!iter->c->v_table || !iter->c->v_table->iterator_next) {
/* Sanity checks. */
ast_assert(0);
return NULL;
@ -748,7 +754,11 @@ struct ao2_container *__ao2_container_clone(struct ao2_container *orig, enum sea
int failed;
/* Create the clone container with the same properties as the original. */
if (!is_ao2_object(orig) || !orig->v_table || !orig->v_table->alloc_empty_clone) {
if (!is_ao2_object(orig)) {
return NULL;
}
if (!orig->v_table || !orig->v_table->alloc_empty_clone) {
/* Sanity checks. */
ast_assert(0);
return NULL;
@ -779,7 +789,11 @@ struct ao2_container *__ao2_container_clone_debug(struct ao2_container *orig, en
int failed;
/* Create the clone container with the same properties as the original. */
if (!is_ao2_object(orig) || !orig->v_table || !orig->v_table->alloc_empty_clone_debug) {
if (!is_ao2_object(orig)) {
return NULL;
}
if (!orig->v_table || !orig->v_table->alloc_empty_clone_debug) {
/* Sanity checks. */
ast_assert(0);
return NULL;

4
main/astobj2_hash.c
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@ -186,7 +186,9 @@ static void hash_ao2_node_destructor(void *v_doomed)
* same node.
*/
my_container = (struct ao2_container_hash *) doomed->common.my_container;
ast_assert(is_ao2_object(my_container));
#if defined(AST_DEVMODE)
is_ao2_object(my_container);
#endif
__adjust_lock(my_container, AO2_LOCK_REQ_WRLOCK, 1);

4
main/astobj2_rbtree.c
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@ -878,7 +878,9 @@ static void rb_ao2_node_destructor(void *v_doomed)
* same node.
*/
my_container = (struct ao2_container_rbtree *) doomed->common.my_container;
ast_assert(is_ao2_object(my_container));
#if defined(AST_DEVMODE)
is_ao2_object(my_container);
#endif
__adjust_lock(my_container, AO2_LOCK_REQ_WRLOCK, 1);

6
main/utils.c
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@ -2437,17 +2437,16 @@ void DO_CRASH_NORETURN ast_do_crash(void)
#endif /* defined(DO_CRASH) */
}
#if defined(AST_DEVMODE)
void DO_CRASH_NORETURN __ast_assert_failed(int condition, const char *condition_str, const char *file, int line, const char *function)
{
/*
* Attempt to put it into the logger, but hope that at least
* someone saw the message on stderr ...
*/
ast_log(__LOG_ERROR, file, line, function, "FRACK!, Failed assertion %s (%d)\n",
condition_str, condition);
fprintf(stderr, "FRACK!, Failed assertion %s (%d) at line %d in %s of %s\n",
condition_str, condition, line, function, file);
ast_log(__LOG_ERROR, file, line, function, "FRACK!, Failed assertion %s (%d)\n",
condition_str, condition);
/* Generate a backtrace for the assert */
ast_log_backtrace();
@ -2460,7 +2459,6 @@ void DO_CRASH_NORETURN __ast_assert_failed(int condition, const char *condition_
usleep(1);
ast_do_crash();
}
#endif /* defined(AST_DEVMODE) */
char *ast_eid_to_str(char *s, int maxlen, struct ast_eid *eid)
{

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