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* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
.intel_syntax noprefix
test rcx, rcx
testq %rcx, %rcx
jz .LreturnNilMethod
test cl, 1
testb $1, %cl
jnz .LtaggedPointer_\name
mov r8, [rcx]
mov r8, [r8 + 56]
movq (%rcx), %r8
movq 56(%r8), %r8
.Lmain_\name:
mov r10, rcx
mov r11, rdx
movq %rcx, %r10
movq %rdx, %r11
mov rax, [rdx]
movzx ecx, ah
movzx edx, al
movq (%rdx), %rax
movzbl %ah, %ecx
movzbl %al, %edx
#ifdef OF_SELUID24
shr eax, 16
shrl $16, %eax
mov r8, [r8 + 8 * rax]
movq (%r8,%rax,8), %r8
#endif
mov r8, [r8 + 8 * rcx]
mov rax, [r8 + 8 * rdx]
movq (%r8,%rcx,8), %r8
movq (%r8,%rdx,8), %rax
test rax, rax
testq %rax, %rax
jz 0f
ret
0:
mov rcx, r10
mov rdx, r11
movq %r10, %rcx
movq %r11, %rdx
jmp \notFound
.LtaggedPointer_\name:
xor rcx, [rip + objc_taggedPointerSecret]
and cl, 0xE
movzx r8d, cl
xorq objc_taggedPointerSecret(%rip), %rcx
andb $0xE, %cl
movzbl %cl, %r8d
lea rax, [rip + objc_taggedPointerClasses]
mov r8, [rax + 4 * r8]
mov r8, [r8 + 56]
leaq objc_taggedPointerClasses(%rip), %rax
movq (%rax,%r8,4), %r8
movq 56(%r8), %r8
jmp .Lmain_\name
.def \name
.scl 2
.type 32
.endef
.endm
.macro GENERATE_LOOKUP_SUPER name lookup
\name:
mov r8, rcx
mov rcx, [rcx]
test rcx, rcx
jz short .LreturnNilMethod
movq %rcx, %r8
movq (%rcx), %rcx
testq %rcx, %rcx
jz .LreturnNilMethod
mov r8, [r8 + 8]
mov r8, [r8 + 56]
jmp short .Lmain_\lookup
movq 8(%r8), %r8
movq 56(%r8), %r8
jmp .Lmain_\lookup
.def \name
.scl 2
.type 32
.endef
.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
.LreturnNilMethod:
lea rax, [rip + .LnilMethod]
leaq .LnilMethod(%rip), %rax
ret
.LnilMethod:
xor rax, rax
xorq %rax, %rax
ret
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