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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:
testq %rdi, %rdi
jz ret_nil
testb $1, %dil
jnz .Ltagged_pointer_\name
movq (%rdi), %r8
movq 64(%r8), %r8
.Lmain_\name:
movq (%rsi), %rax
movzbl %ah, %ecx
movzbl %al, %edx
#ifdef OF_SELUID24
shrl $16, %eax
movq (%r8,%rax,8), %r8
#endif
movq (%r8,%rcx,8), %r8
movq (%r8,%rdx,8), %rax
testq %rax, %rax
jz \not_found@PLT
ret
.Ltagged_pointer_\name:
movq objc_tagged_pointer_secret@GOTPCREL(%rip), %rax
xorq (%rax), %rdi
andb $0xE, %dil
movzbl %dil, %r8d
movq objc_tagged_pointer_classes@GOTPCREL(%rip), %rax
movq (%rax,%r8,4), %r8
movq 64(%r8), %r8
jmp .Lmain_\name
.type \name, %function
.size \name, .-\name
.endm
.macro generate_lookup_super name lookup
\name:
movq %rdi, %r8
movq (%rdi), %rdi
testq %rdi, %rdi
jz ret_nil
movq 8(%r8), %r8
movq 64(%r8), %r8
jmp .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:
leaq nil_method(%rip), %rax
ret
nil_method:
xorq %rax, %rax
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:
testq %rdi, %rdi
jz returnNilMethod
testb $1, %dil
jnz .LtaggedPointer_\name
movq (%rdi), %r8
movq 64(%r8), %r8
.Lmain_\name:
movq (%rsi), %rax
movzbl %ah, %ecx
movzbl %al, %edx
#ifdef OF_SELUID24
shrl $16, %eax
movq (%r8,%rax,8), %r8
#endif
movq (%r8,%rcx,8), %r8
movq (%r8,%rdx,8), %rax
testq %rax, %rax
jz \notFound@PLT
ret
.LtaggedPointer_\name:
movq objc_taggedPointerSecret@GOTPCREL(%rip), %rax
xorq (%rax), %rdi
andb $0xE, %dil
movzbl %dil, %r8d
movq objc_taggedPointerClasses@GOTPCREL(%rip), %rax
movq (%rax,%r8,4), %r8
movq 64(%r8), %r8
jmp .Lmain_\name
.type \name, %function
.size \name, .-\name
.endm
.macro GENERATE_LOOKUP_SUPER name lookup
\name:
movq %rdi, %r8
movq (%rdi), %rdi
testq %rdi, %rdi
jz returnNilMethod
movq 8(%r8), %r8
movq 64(%r8), %r8
jmp .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:
leaq nilMethod(%rip), %rax
ret
nilMethod:
xorq %rax, %rax
ret
#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif
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