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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_handler
.macro generate_lookup name not_found
\name:
testq %rdi, %rdi
jz ret_nil
movq (%rdi), %r8
movq 64(%r8), %r8
.main_\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_handler@PLT
jz \not_found@PLT
ret
.type \name, %function
.size \name, .-\name
.endm
.macro generate_lookup_super name lookup
\name:
movq (%rdi), %rax
testq %rax, %rax
jz ret_nil
movq 8(%rdi), %r8
movq 64(%r8), %r8
movq %rdi, %rax
jmp .main_\lookup
.type \name, %function
.size \name, .-\name
.endm
generate_lookup objc_msg_lookup objc_not_found_handler
generate_lookup objc_msg_lookup_stret objc_not_found_handler_stret
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
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