// license that can be found in the LICENSE file.

// Export guts for testing.

package runtime

const SiginfoMaxSize = _si_max_size
const SigeventMaxSize = _sigev_max_size

var NewOSProc0 = newosproc0
var Mincore = mincore

type Siginfo siginfo

	}
}

// Test that error values are negative.
// Use a misaligned pointer to get -EINVAL.
func TestMincoreErrorSign(t *testing.T) {
	var dst byte
	v := Mincore(unsafe.Add(unsafe.Pointer(new(int32)), 1), 1, &dst)

	const EINVAL = 0x16
	if v != -EINVAL {
		t.Errorf("mincore = %v, want %v", v, -EINVAL)
	}
}

func TestKernelStructSize(t *testing.T) {
	// Check that the Go definitions of structures exchanged with the kernel are

	// Fall back to /proc/self/auxv.
	fd := open(&procAuxv[0], 0 /* O_RDONLY */, 0)
	if fd < 0 {
		// On Android, /proc/self/auxv might be unreadable (issue 9229), so we fallback to
		// try using mincore to detect the physical page size.
		// mincore should return EINVAL when address is not a multiple of system page size.
		const size = 256 << 10 // size of memory region to allocate

	RET

// func timer_delete(timerid int32) int32
TEXT runtime·timer_delete(SB),NOSPLIT,$0-12
	MOVW	timerid+0(FP), A0
	MOV	$SYS_timer_delete, A7
	ECALL
	MOVW	A0, ret+8(FP)
	RET

// func mincore(addr unsafe.Pointer, n uintptr, dst *byte) int32
TEXT runtime·mincore(SB),NOSPLIT|NOFRAME,$0-28
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOV	dst+16(FP), A2
	MOV	$SYS_mincore, A7
	ECALL
	MOVW	A0, ret+24(FP)

	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \
	SYS_MINCORE                  = 78  // { int mincore(const void *addr, size_t len, \
	SYS_GETGROUPS                = 79  // { int getgroups(u_int gidsetsize, \
	SYS_SETGROUPS                = 80  // { int setgroups(u_int gidsetsize, \

	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \
	SYS_MINCORE                  = 78  // { int mincore(const void *addr, size_t len, \
	SYS_GETGROUPS                = 79  // { int getgroups(u_int gidsetsize, \
	SYS_SETGROUPS                = 80  // { int setgroups(u_int gidsetsize, \

	RET

// func timer_delete(timerid int32) int32
TEXT runtime·timer_delete(SB),NOSPLIT,$0-12
	MOVW	timerid+0(FP), R4
	MOVV	$SYS_timer_delete, R11
	SYSCALL
	MOVW	R4, ret+8(FP)
	RET

// func mincore(addr unsafe.Pointer, n uintptr, dst *byte) int32
TEXT runtime·mincore(SB),NOSPLIT|NOFRAME,$0-28
	MOVV	addr+0(FP), R4
	MOVV	n+8(FP), R5
	MOVV	dst+16(FP), R6
	MOVV	$SYS_mincore, R11
	SYSCALL
	MOVW	R4, ret+24(FP)

	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \
	SYS_MINCORE                  = 78  // { int mincore(const void *addr, size_t len, \
	SYS_GETGROUPS                = 79  // { int getgroups(u_int gidsetsize, \
	SYS_SETGROUPS                = 80  // { int setgroups(u_int gidsetsize, \

	SYS_MPROTECT      = 74  // { int mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE       = 75  // { int madvise(void *addr, size_t len, int behav); }
	SYS_MINCORE       = 78  // { int mincore(const void *addr, size_t len, \
	SYS_GETGROUPS     = 79  // { int getgroups(u_int gidsetsize, gid_t *gidset); }
	SYS_SETGROUPS     = 80  // { int setgroups(u_int gidsetsize, gid_t *gidset); }

	SYS_MPROTECT             = 74  // { int|sys||mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE              = 75  // { int|sys||madvise(void *addr, size_t len, int behav); }
	SYS_MINCORE              = 78  // { int|sys||mincore(void *addr, size_t len, char *vec); }
	SYS_GETGROUPS            = 79  // { int|sys||getgroups(int gidsetsize, gid_t *gidset); }
	SYS_SETGROUPS            = 80  // { int|sys||setgroups(int gidsetsize, const gid_t *gidset); }