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.globl objc_msg_lookup
.globl objc_msg_lookup_stret
.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret
.section .text
.macro generate_lookup name not_found
\name:
cbz x0, ret_nil
tst x0, #1
b.ne .Ltagged_pointer_\name
ldr x2, [x0]
ldr x2, [x2, #64]
.Lmain_\name:
#ifdef OF_SELUID24
ldrb w3, [x1, #2]
ldr x2, [x2, x3, lsl #3]
#endif
ldrb w3, [x1, #1]
ldr x2, [x2, x3, lsl #3]
ldrb w3, [x1]
ldr x2, [x2, x3, lsl #3]
cbz x2, \not_found
mov x0, x2
ret
.Ltagged_pointer_\name:
adrp x2, :got:objc_tagged_pointer_secret
ldr x2, [x2, #:got_lo12:objc_tagged_pointer_secret]
ldr x2, [x2]
eor x0, x0, x2
and x0, x0, #0xE
lsl x0, x0, #2
adrp x2, :got:objc_tagged_pointer_classes
ldr x2, [x2, #:got_lo12:objc_tagged_pointer_classes]
ldr x2, [x2, x0]
ldr x2, [x2, #64]
b .Lmain_\name
.type \name, %function
.size \name, .-\name
.endm
.macro generate_lookup_super name lookup
\name:
mov x2, x0
ldr x0, [x0]
cbz x0, ret_nil
ldr x2, [x2, #8]
ldr x2, [x2, #64]
b .Lmain_\lookup
.type \name, %function
.size \name, .-\name
.endm
generate_lookup objc_msg_lookup objc_method_not_found
generate_lookup objc_msg_lookup_stret objc_method_not_found_stret
generate_lookup_super objc_msg_lookup_super objc_msg_lookup
generate_lookup_super objc_msg_lookup_super_stret objc_msg_lookup_stret
ret_nil:
adr x0, nil_method
ret
nil_method:
mov x0, #0
ret
#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif
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.globl objc_msg_lookup
.globl objc_msg_lookup_stret
.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret
.section .text
.macro GENERATE_LOOKUP name notFound
\name:
cbz x0, returnNilMethod
tst x0, #1
b.ne .LtaggedPointer_\name
ldr x2, [x0]
ldr x2, [x2, #64]
.Lmain_\name:
#ifdef OF_SELUID24
ldrb w3, [x1, #2]
ldr x2, [x2, x3, lsl #3]
#endif
ldrb w3, [x1, #1]
ldr x2, [x2, x3, lsl #3]
ldrb w3, [x1]
ldr x2, [x2, x3, lsl #3]
cbz x2, \notFound
mov x0, x2
ret
.LtaggedPointer_\name:
adrp x2, :got:objc_taggedPointerSecret
ldr x2, [x2, #:got_lo12:objc_taggedPointerSecret]
ldr x2, [x2]
eor x0, x0, x2
and x0, x0, #0xE
lsl x0, x0, #2
adrp x2, :got:objc_taggedPointerClasses
ldr x2, [x2, #:got_lo12:objc_taggedPointerClasses]
ldr x2, [x2, x0]
ldr x2, [x2, #64]
b .Lmain_\name
.type \name, %function
.size \name, .-\name
.endm
.macro GENERATE_LOOKUP_SUPER name lookup
\name:
mov x2, x0
ldr x0, [x0]
cbz x0, returnNilMethod
ldr x2, [x2, #8]
ldr x2, [x2, #64]
b .Lmain_\lookup
.type \name, %function
.size \name, .-\name
.endm
GENERATE_LOOKUP objc_msg_lookup objc_methodNotFound
GENERATE_LOOKUP objc_msg_lookup_stret objc_methodNotFound_stret
GENERATE_LOOKUP_SUPER objc_msg_lookup_super objc_msg_lookup
GENERATE_LOOKUP_SUPER objc_msg_lookup_super_stret objc_msg_lookup_stret
returnNilMethod:
adr x0, nilMethod
ret
nilMethod:
mov x0, #0
ret
#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif
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