30 #define SYS_READ	  0
37 /* x32-only system call numbers (without X32_BIT) */
42 #define X32_BIT 0x40000000
45 static bool with_x32;		/* x32 supported on this kernel? */
80 	unsigned int level = sh ? sh->indent : 0;  in offset()
96        } while (0)
100 		sh->indent = 0;				\
104        } while (0)
118 	register long long arg2 asm("rsi") = 0;  in probe_syscall()
119 	register long long arg3 asm("rdx") = 0;  in probe_syscall()
120 	register long long arg4 asm("r10") = 0;  in probe_syscall()
121 	register long long arg5 asm("r8")  = 0;  in probe_syscall()
122 	register long long arg6 asm("r9")  = 0;  in probe_syscall()
148 	const char * const type = (start & X32_BIT) ? "x32" : "x64";  in syscall_str()
152 	 * Improve readability by stripping the x32 bit, but round  in syscall_str()
155 	if (lsb < 0)  in syscall_str()
173 	unsigned int err = 0;  in _check_for()
213 	return check_for(msb, nr, nr, 0);  in check_zero()
223  * supports x32. Tell them. This can also be used to conditionalize
224  * tests based on existence or nonexistence of x32.
231 	run("Checking for x32 by calling x32 getpid()\n");  in test_x32()
232 	ret = probe_syscall(0, SYS_GETPID | X32_BIT);  in test_x32()
236 		info("x32 is supported\n");  in test_x32()
239 		info("x32 is not supported\n");  in test_x32()
242 …fail("x32 getpid() returned %lld, but it should have returned either %lld or -ENOSYS\n", ret, (lon…  in test_x32()
275 	 * Syscalls 512-547 are "x32" syscalls.  They are  in test_syscalls_with_x32()
276 	 * intended to be called with the x32 (0x40000000) bit  in test_syscalls_with_x32()
277 	 * set.  Calling them without the x32 bit set is  in test_syscalls_with_x32()
280 	run("Checking x32 syscalls as 64 bit\n");  in test_syscalls_with_x32()
283 	run("Checking some common syscalls as x32\n");  in test_syscalls_with_x32()
287 	run("Checking some x32 syscalls as x32\n");  in test_syscalls_with_x32()
291 	run("Checking some 64-bit syscalls as x32\n");  in test_syscalls_with_x32()
299 	run("Checking for absence of x32 system calls\n");  in test_syscalls_without_x32()
300 	check_for(msb, 0 | X32_BIT, 999 | X32_BIT, -ENOSYS);  in test_syscalls_without_x32()
306 		0, 1, -1, X32_BIT-1, X32_BIT, X32_BIT-1, -X32_BIT, INT_MAX,  in test_syscall_numbering()
316 	for (size_t i = 0; i < sizeof(msbs)/sizeof(msbs[0]); i++) {  in test_syscall_numbering()
318 		run("Checking system calls with msb = %d (0x%x)\n",  in test_syscall_numbering()
339 	if (ptrace(PTRACE_TRACEME, 0, 0, 0)) {  in syscall_numbering_tracee()
382 		regs.orig_rax = regs.orig_rax | 0xffffffff00000000ULL;  in mess_with_syscall()
401 		pid_t wpid = waitpid(testpid, &wstatus, 0);  in syscall_numbering_tracer()
402 		if (wpid < 0 && errno != EINTR)  in syscall_numbering_tracer()
417 	while (waitpid(testpid, &wstatus, 0) != testpid || !WIFEXITED(wstatus))  in syscall_numbering_tracer()
428 	if (testpid < 0) {  in test_traced_syscall_numbering()
430 	} else if (testpid == 0) {  in test_traced_syscall_numbering()
432 		_exit(0);  in test_traced_syscall_numbering()
446 	setvbuf(stdout, NULL, _IONBF, 0);  in main()
452 	if (nullfd < 0) {  in main()
460 		  MAP_ANONYMOUS|MAP_SHARED, 0, 0);  in main()
476 		return 0;  in main()