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#
# arch/arm64/setjmp.S
#
# setjmp/longjmp for arm64
#
# we specify -mgeneral-regs-only as a build flag thus do not need to
# save d8-d15
.text
.balign 8
.globl setjmp
.type setjmp, #function
setjmp:
mov x1, sp
stp x19, x20, [x0, #0]
stp x21, x22, [x0, #16]
stp x23, x24, [x0, #32]
stp x25, x26, [x0, #48]
stp x27, x28, [x0, #64]
stp x29, x30, [x0, #80]
str x1, [x0, #96]
mov x0, #0 /* set the return value of setjmp */
br x30
.size setjmp,.-setjmp
.text
.balign 8
.globl longjmp
.type longjmp, #function
longjmp:
ldp x19, x20, [x0, #0]
ldp x21, x22, [x0, #16]
ldp x23, x24, [x0, #32]
ldp x25, x26, [x0, #48]
ldp x27, x28, [x0, #64]
ldp x29, x30, [x0, #80]
ldr x2, [x0, #96]
mov sp, x2
mov x0, x1
cbnz x1, 1f
mov x0, #1
1:
br x30
.size longjmp,.-longjmp
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