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()
1257 int get_syscall(struct __test_metadata *_metadata, pid_t tracee)  in get_syscall()  argument
1261 	EXPECT_EQ(0, ptrace(PTRACE_GETREGS, tracee, 0, &regs)) {  in get_syscall()
1270 	EXPECT_EQ(0, ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov)) {  in get_syscall()
1281 		    pid_t tracee, int syscall)  in change_syscall()  argument
1286 	ret = ptrace(PTRACE_GETREGS, tracee, 0, &regs);  in change_syscall()
1291 	ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov);  in change_syscall()
1306 		ret = ptrace(PTRACE_SET_SYSCALL, tracee, NULL, syscall);  in change_syscall()
1317 		ret = ptrace(PTRACE_SETREGSET, tracee, NT_ARM_SYSTEM_CALL,  in change_syscall()
1333 	ret = ptrace(PTRACE_SETREGS, tracee, 0, &regs);  in change_syscall()
1337 	ret = ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &iov);  in change_syscall()
1342 void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,  in tracer_syscall()  argument
1349 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_syscall()
1356 		EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));  in tracer_syscall()
1357 		change_syscall(_metadata, tracee, __NR_getppid);  in tracer_syscall()
1361 		EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));  in tracer_syscall()
1362 		change_syscall(_metadata, tracee, -1);  in tracer_syscall()
1366 		EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));  in tracer_syscall()
1371 			kill(tracee, SIGKILL);  in tracer_syscall()