// vim: ft=arm64asm

.extern __sigsetjmp

.type __setjmp, "function"
__setjmp:
	stp x19, x20, [x0, #0]
	stp x21, x22, [x0, #16]
	stp x23, x24, [x0, #24]
	stp x25, x26, [x0, #32]
	stp x27, x28, [x0, #48]
	stp x29, x30, [x0, #64]
	stp x29, x30, [x0, #80]
	mov x4, sp
	str x4, [x0, #96]

	stp d8, d9, [x0, #112]
	stp d10, d11, [x0, #128]
	stp d12, d13, [x0, #144]
	stp d14, d15, [x0, #160]

	cbnz x2, 1f

	mov x0, xzr
	ret
1:
	b __sigsetjmp

.global setjmp
.type setjmp, "function"
setjmp:
	mov x2, xzr
	b __setjmp

.global sigsetjmp
.type sigsetjmp, "function"
sigsetjmp:
	mov x2, #1
	b __setjmp

.global longjmp
.type longjmp, "function"
longjmp:
	ldp x19, x20, [x0, #0]
	ldp x21, x22, [x0, #16]
	ldp x23, x24, [x0, #24]
	ldp x25, x26, [x0, #32]
	ldp x27, x28, [x0, #48]
	ldp x29, x30, [x0, #64]
	ldp x29, x30, [x0, #80]
	ldr x4, [x0, #96]
	mov sp, x4

	ldp d8, d9, [x0, #112]
	ldp d10, d11, [x0, #128]
	ldp d12, d13, [x0, #144]
	ldp d14, d15, [x0, #160]

	cmp w1, 0
	csinc w0, w1, wzr, ne
	br x30
.section .note.GNU-stack,"",%progbits