hook_func 61 tools/perf/util/perf-hooks.c perf_hook_func_t hook_func, hook_func 72 tools/perf/util/perf-hooks.c *(perf_hooks[i]->p_hook_func) = hook_func; hook_func 31 tools/perf/util/perf-hooks.h perf_hook_func_t hook_func,