I am looking into one library (google-perftools) that attempts to
overload sbrk(2).
In Linux libc translates calls, ex. sbrk -> __sbrk (in libc), so one can
define their own version, call extern __sbrk and it works.
FreeBSD programs connect to the symbol sbrk@@FBSD_1.0
So what is the way to overload the system call like this would be in linux?:
extern "C" void* __sbrk(ptrdiff_t increment);
extern "C" void* sbrk(intptr_t increment) {
return__sbrk(increment);
}
Yuri
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