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Safety checks: Add a redzoning feature.

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David Goldblatt 2019-03-22 12:53:11 -07:00 • committed by David Goldblatt
parent b92c9a1a81
commit 33e1dad680
12 changed files with 233 additions and 22 deletions
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16
src/prof.c
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@ -125,7 +125,7 @@ struct prof_thr_node_s {
uint64_t thr_uid;
/* Variable size based on thr_name_sz. */
char name[1];
};
};
typedef struct prof_alloc_node_s prof_alloc_node_t;
@ -388,7 +388,7 @@ prof_log_bt_index(tsd_t *tsd, prof_bt_t *bt) {
new_node->next = NULL;
new_node->index = log_bt_index;
/*
/*
* Copy the backtrace: bt is inside a tdata or gctx, which
* might die before prof_log_stop is called.
*/
@ -402,7 +402,7 @@ prof_log_bt_index(tsd_t *tsd, prof_bt_t *bt) {
} else {
return node->index;
}
}
}
static size_t
prof_log_thr_index(tsd_t *tsd, uint64_t thr_uid, const char *name) {
assert(prof_logging_state == prof_logging_state_started);
@ -452,7 +452,7 @@ prof_try_log(tsd_t *tsd, const void *ptr, size_t usize, prof_tctx_t *tctx) {
* it's being destroyed).
*/
return;
}
}
malloc_mutex_lock(tsd_tsdn(tsd), &log_mtx);
@ -514,11 +514,11 @@ prof_try_log(tsd_t *tsd, const void *ptr, size_t usize, prof_tctx_t *tctx) {
}
label_done:
malloc_mutex_unlock(tsd_tsdn(tsd), &log_mtx);
malloc_mutex_unlock(tsd_tsdn(tsd), &log_mtx);
}
void
prof_free_sampled_object(tsd_t *tsd, const void *ptr, size_t usize,
prof_free_sampled_object(tsd_t *tsd, const void *ptr, size_t usize,
prof_tctx_t *tctx) {
malloc_mutex_lock(tsd_tsdn(tsd), tctx->tdata->lock);
@ -2604,8 +2604,8 @@ static void
prof_log_emit_traces(tsd_t *tsd, emitter_t *emitter) {
emitter_json_array_kv_begin(emitter, "stack_traces");
prof_bt_node_t *bt_node = log_bt_first;
prof_bt_node_t *bt_old_node;
/*
prof_bt_node_t *bt_old_node;
/*
* Calculate how many hex digits we need: twice number of bytes, two for
* "0x", and then one more for terminating '\0'.
*/