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Bug 822041 - Temporary diagnostic for tracking down intermittent failures in JS profiling. r=jorendorff

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--HG--
extra : rebase_source : e3465205c2f862654155243f71604c6ba29498c3
This commit is contained in:
Steve Fink 2013-01-08 21:39:54 -08:00
parent a140b830ba
commit 3e72e50bdb
1 changed files with 13 additions and 0 deletions
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13
js/src/vm/SPSProfiler.cpp
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@ -129,6 +129,19 @@ SPSProfiler::exit(JSContext *cx, UnrootedScript script, UnrootedFunction maybeFu
const char *str = profileString(cx, script, maybeFun);
/* Can't fail lookup because we should already be in the set */
JS_ASSERT(str != NULL);
// Bug 822041
if (!stack_[*size_].js()) {
fprintf(stderr, "--- ABOUT TO FAIL ASSERTION ---\n");
fprintf(stderr, " stack=%p size=%d/%d\n", (void*) stack_, *size_, max_);
for (int32_t i = *size_; i >= 0; i--) {
if (stack_[i].js())
fprintf(stderr, " [%d] JS %s\n", i, stack_[i].label());
else
fprintf(stderr, " [%d] C line %d %s\n", i, stack_[i].line(), stack_[i].label());
}
}
JS_ASSERT(stack_[*size_].js());
JS_ASSERT(stack_[*size_].script() == script);
JS_ASSERT(strcmp((const char*) stack_[*size_].label(), str) == 0);