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malloc: Keep some stats and dump them at process exit if LIBC_DUMP_MALLOC_STATS is set

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Very bare-bones and barely useful. Can go away once the perf_event-based
malloc tracking is further along.
This commit is contained in:
Nico Weber 2020-08-16 21:24:14 -04:00 • committed by Andreas Kling
parent c44d2515b4
commit 22f701d657
3 changed files with 72 additions and 2 deletions
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4
Libraries/LibC/stdlib.cpp
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@ -201,6 +201,10 @@ extern "C" {
void exit(int status)
{
__cxa_finalize(nullptr);
if (getenv("LIBC_DUMP_MALLOC_STATS"))
serenity_dump_malloc_stats();
extern void _fini();
_fini();
fflush(stdout);