sem_child 23 tools/testing/selftests/powerpc/ptrace/child.h sem_t sem_child; sem_child 70 tools/testing/selftests/powerpc/ptrace/child.h ret = sem_init(&sync->sem_child, 1, 0); sem_child 82 tools/testing/selftests/powerpc/ptrace/child.h sem_destroy(&sync->sem_child); sem_child 104 tools/testing/selftests/powerpc/ptrace/child.h ret = sem_post(&sync->sem_child); sem_child 118 tools/testing/selftests/powerpc/ptrace/child.h ret = sem_wait(&sync->sem_child);