1533 			   pid_t tracee, int status, void *args);
1535 void start_tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,  in start_tracer()  argument
1549 		ret = ptrace(PTRACE_ATTACH, tracee, NULL, 0);  in start_tracer()
1551 		kill(tracee, SIGKILL);  in start_tracer()
1556 	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, ptrace_syscall ?  in start_tracer()
1561 		kill(tracee, SIGKILL);  in start_tracer()
1564 		     tracee, NULL, 0);  in start_tracer()
1575 		if (wait(&status) != tracee)  in start_tracer()
1594 		tracer_func(_metadata, tracee, status, args);  in start_tracer()
1597 			     tracee, NULL, 0);  in start_tracer()
1613 	pid_t tracee = getpid();  in setup_trace_fixture()  local
1624 		start_tracer(_metadata, pipefd[1], tracee, func, args,  in setup_trace_fixture()
1651 void tracer_poke(struct __test_metadata *_metadata, pid_t tracee, int status,  in tracer_poke()  argument
1658 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_poke()
1662 		kill(tracee, SIGKILL);  in tracer_poke()
1669 	ret = ptrace(PTRACE_POKEDATA, tracee, info->poke_addr, 0x1001);  in tracer_poke()
1758 		EXPECT_EQ(0, ptrace(PTRACE_SET_SYSCALL, tracee, NULL, _nr))
1772 		EXPECT_EQ(0, ptrace(PTRACE_SETREGSET, tracee,	\
1934 # define ARCH_GETREGS(_regs)	ptrace(PTRACE_GETREGS, tracee, 0, &(_regs))
1935 # define ARCH_SETREGS(_regs)	ptrace(PTRACE_SETREGS, tracee, 0, &(_regs))
1941 		ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &__v);	\
1947 		ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &__v);	\
1952 int get_syscall(struct __test_metadata *_metadata, pid_t tracee)  in get_syscall()  argument
1965 		    pid_t tracee, long *syscall, long *ret)  in __change_syscall()  argument
1991 		       pid_t tracee, long syscall)  in change_syscall_nr()  argument
1993 	__change_syscall(_metadata, tracee, &syscall, NULL);  in change_syscall_nr()
1998 			pid_t tracee, long ret)  in change_syscall_ret()  argument
2002 	__change_syscall(_metadata, tracee, &syscall, &ret);  in change_syscall_ret()
2005 void tracer_seccomp(struct __test_metadata *_metadata, pid_t tracee,  in tracer_seccomp()  argument
2017 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_seccomp()
2024 		EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));  in tracer_seccomp()
2025 		change_syscall_nr(_metadata, tracee, __NR_getppid);  in tracer_seccomp()
2029 		EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));  in tracer_seccomp()
2030 		change_syscall_ret(_metadata, tracee, 45000);  in tracer_seccomp()
2034 		EXPECT_EQ(__NR_openat, get_syscall(_metadata, tracee));  in tracer_seccomp()
2035 		change_syscall_ret(_metadata, tracee, -ESRCH);  in tracer_seccomp()
2039 		EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));  in tracer_seccomp()
2044 			kill(tracee, SIGKILL);  in tracer_seccomp()
2056 void tracer_ptrace(struct __test_metadata *_metadata, pid_t tracee,  in tracer_ptrace()  argument
2078 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);  in tracer_ptrace()
2091 		self->syscall_nr = get_syscall(_metadata, tracee);  in tracer_ptrace()
2122 	__change_syscall(_metadata, tracee, syscall_nr, syscall_ret);  in tracer_ptrace()