1022 			   pid_t tracee, int status, void *args);
1024 void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,  in tracer()  argument
1038 		ret = ptrace(PTRACE_ATTACH, tracee, NULL, 0);  in tracer()
1040 		kill(tracee, SIGKILL);  in tracer()
1045 	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, PTRACE_O_TRACESECCOMP);  in tracer()
1048 		kill(tracee, SIGKILL);  in tracer()
1050 	ptrace(PTRACE_CONT, tracee, NULL, 0);  in tracer()
1060 		if (wait(&status) != tracee)  in tracer()
1069 		tracer_func(_metadata, tracee, status, args);  in tracer()
1071 		ret = ptrace(PTRACE_CONT, tracee, NULL, NULL);  in tracer()
1087 	pid_t tracee = getpid();  in setup_trace_fixture()  local
1098 		tracer(_metadata, pipefd[1], tracee, func, args);  in setup_trace_fixture()
1129 void tracer_poke(struct __test_metadata *_metadata, pid_t tracee, int status,  in tracer_poke()  argument
1136 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_poke()
1140 		kill(tracee, SIGKILL);  in tracer_poke()
1147 	ret = ptrace(PTRACE_POKEDATA, tracee, info->poke_addr, 0x1001);  in tracer_poke()
1250 int get_syscall(struct __test_metadata *_metadata, pid_t tracee)  in get_syscall()  argument
1257 	EXPECT_EQ(0, ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov)) {  in get_syscall()
1267 		    pid_t tracee, int syscall)  in change_syscall()  argument
1275 	ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov);  in change_syscall()
1289 		ret = ptrace(PTRACE_SET_SYSCALL, tracee, NULL, syscall);  in change_syscall()
1300 		ret = ptrace(PTRACE_SETREGSET, tracee, NT_ARM_SYSTEM_CALL,  in change_syscall()
1317 	ret = ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &iov);  in change_syscall()
1321 void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,  in tracer_syscall()  argument
1328 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_syscall()
1335 		EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));  in tracer_syscall()
1336 		change_syscall(_metadata, tracee, __NR_getppid);  in tracer_syscall()
1340 		EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));  in tracer_syscall()
1341 		change_syscall(_metadata, tracee, -1);  in tracer_syscall()
1345 		EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));  in tracer_syscall()
1350 			kill(tracee, SIGKILL);  in tracer_syscall()