project-base/server-skynet-source-3rd-jemalloc
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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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19
include/jemalloc/internal/hooks.h Normal file
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#ifndef JEMALLOC_INTERNAL_HOOKS_H
#define JEMALLOC_INTERNAL_HOOKS_H
extern void (*hooks_arena_new_hook)();
extern void (*hooks_libc_hook)();
#define JEMALLOC_HOOK(fn, hook) ((void)(hook != NULL && (hook(), 0)), fn)
#define open JEMALLOC_HOOK(open, hooks_libc_hook)
#define read JEMALLOC_HOOK(read, hooks_libc_hook)
#define write JEMALLOC_HOOK(write, hooks_libc_hook)
#define readlink JEMALLOC_HOOK(readlink, hooks_libc_hook)
#define close JEMALLOC_HOOK(close, hooks_libc_hook)
#define creat JEMALLOC_HOOK(creat, hooks_libc_hook)
#define secure_getenv JEMALLOC_HOOK(secure_getenv, hooks_libc_hook)
/* Note that this is undef'd and re-define'd in src/prof.c. */
#define _Unwind_Backtrace JEMALLOC_HOOK(_Unwind_Backtrace, hooks_libc_hook)
#endif /* JEMALLOC_INTERNAL_HOOKS_H */