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Add hooking functionality

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This allows us to hook chosen functions and do interesting things there (in
particular: reentrancy checking).
This commit is contained in:
David Goldblatt 2017-03-28 17:30:54 -07:00 • committed by David Goldblatt
parent 36bd90b962
commit 0a0fcd3e6a
19 changed files with 183 additions and 11 deletions
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7
src/prof.c
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@ -8,7 +8,14 @@
#endif
#ifdef JEMALLOC_PROF_LIBGCC
/*
* We have a circular dependency -- jemalloc_internal.h tells us if we should
* use libgcc's unwinding functionality, but after we've included that, we've
* already hooked _Unwind_Backtrace. We'll temporarily disable hooking.
*/
#undef _Unwind_Backtrace
#include <unwind.h>
#define _Unwind_Backtrace JEMALLOC_HOOK(_Unwind_Backtrace, hooks_libc_hook)
#endif
/******************************************************************************/