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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:
cmpwi %r3, 0
beq- ret_nil
andi. %r0, %r3, 1
bne- .Ltagged_pointer_\name
lwz %r5, 0(%r3)
lwz %r5, 32(%r5)
.Lmain_\name:
lwz %r8, 0(%r4)
#ifdef OF_SELUID24
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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:
cmpwi %r3, 0
beq- returnNilMethod
andi. %r0, %r3, 1
bne- .LtaggedPointer_\name
lwz %r5, 0(%r3)
lwz %r5, 32(%r5)
.Lmain_\name:
lwz %r8, 0(%r4)
#ifdef OF_SELUID24
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bl 0f
0:
mflr %r30
addis %r30, %r30, .Lbiased_got2-0b@ha
addi %r30, %r30, .Lbiased_got2-0b@l
lwz %r0, .Lgot_\not_found-.Lbiased_got2(%r30)
mtctr %r0
lwz %r30, 8(%r1)
lwz %r0, 20(%r1)
addi %r1, %r1, 16
mtlr %r0
bctr
#else
b \not_found
#endif
.Ltagged_pointer_\name:
#if defined(OF_PIC)
mflr %r7
bl 0f
0:
mflr %r6
mtlr %r7
addis %r6, %r6, .Lbiased_got2-0b@ha
addi %r6, %r6, .Lbiased_got2-0b@l
lwz %r5, .Lgot_objc_tagged_pointer_secret-.Lbiased_got2(%r6)
lwz %r5, 0(%r5)
#elif defined(OF_BASEREL)
addis %r5, %r13, objc_tagged_pointer_secret@drel@ha
lwz %r5, objc_tagged_pointer_secret@drel@l(%r5)
#else
lis %r5, objc_tagged_pointer_secret@ha
lwz %r5, objc_tagged_pointer_secret@l(%r5)
#endif
xor %r5, %r3, %r5
rlwinm %r5, %r5, 1, 0x1C
#if defined(OF_PIC)
lwz %r6, .Lgot_objc_tagged_pointer_classes-.Lbiased_got2(%r6)
#elif defined(OF_BASEREL)
addis %r6, %r13, objc_tagged_pointer_classes@drel@ha
addi %r6, %r6, objc_tagged_pointer_classes@drel@l
#else
lis %r6, objc_tagged_pointer_classes@ha
addi %r6, %r6, objc_tagged_pointer_classes@l
#endif
lwzx %r5, %r6, %r5
lwz %r5, 32(%r5)
b .Lmain_\name
.type \name, @function
.size \name, .-\name
.endm
.macro generate_lookup_super name lookup
\name:
mr %r5, %r3
lwz %r3, 0(%r3)
cmpwi %r3, 0
beq- ret_nil
lwz %r5, 4(%r5)
lwz %r5, 32(%r5)
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:
mflr %r0
bl get_pc
mtlr %r0
0:
addi %r3, %r3, nil_method-0b
blr
nil_method:
li %r3, 0
blr
get_pc:
mflr %r3
blr
#ifdef OF_PIC
.section .got2, "aw"
.Lbiased_got2 = .+0x8000
.Lgot_objc_method_not_found:
.long objc_method_not_found
.Lgot_objc_method_not_found_stret:
.long objc_method_not_found_stret
.Lgot_objc_tagged_pointer_secret:
.long objc_tagged_pointer_secret
.Lgot_objc_tagged_pointer_classes:
.long objc_tagged_pointer_classes
#endif
#ifdef OF_LINUX
.section .note.GNU-stack, "", @progbits
#endif
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bl 0f
0:
mflr %r30
addis %r30, %r30, .Lbiased_got2-0b@ha
addi %r30, %r30, .Lbiased_got2-0b@l
lwz %r0, .Lgot_\notFound-.Lbiased_got2(%r30)
mtctr %r0
lwz %r30, 8(%r1)
lwz %r0, 20(%r1)
addi %r1, %r1, 16
mtlr %r0
bctr
#else
b \notFound
#endif
.LtaggedPointer_\name:
#if defined(OF_PIC)
mflr %r7
bl 0f
0:
mflr %r6
mtlr %r7
addis %r6, %r6, .Lbiased_got2-0b@ha
addi %r6, %r6, .Lbiased_got2-0b@l
lwz %r5, .Lgot_objc_taggedPointerSecret-.Lbiased_got2(%r6)
lwz %r5, 0(%r5)
#elif defined(OF_BASEREL)
addis %r5, %r13, objc_taggedPointerSecret@drel@ha
lwz %r5, objc_taggedPointerSecret@drel@l(%r5)
#else
lis %r5, objc_taggedPointerSecret@ha
lwz %r5, objc_taggedPointerSecret@l(%r5)
#endif
xor %r5, %r3, %r5
rlwinm %r5, %r5, 1, 0x1C
#if defined(OF_PIC)
lwz %r6, .Lgot_objc_taggedPointerClasses-.Lbiased_got2(%r6)
#elif defined(OF_BASEREL)
addis %r6, %r13, objc_taggedPointerClasses@drel@ha
addi %r6, %r6, objc_taggedPointerClasses@drel@l
#else
lis %r6, objc_taggedPointerClasses@ha
addi %r6, %r6, objc_taggedPointerClasses@l
#endif
lwzx %r5, %r6, %r5
lwz %r5, 32(%r5)
b .Lmain_\name
.type \name, @function
.size \name, .-\name
.endm
.macro GENERATE_LOOKUP_SUPER name lookup
\name:
mr %r5, %r3
lwz %r3, 0(%r3)
cmpwi %r3, 0
beq- returnNilMethod
lwz %r5, 4(%r5)
lwz %r5, 32(%r5)
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:
mflr %r0
bl getPC
mtlr %r0
0:
addi %r3, %r3, nilMethod-0b
blr
nilMethod:
li %r3, 0
blr
getPC:
mflr %r3
blr
#ifdef OF_PIC
.section .got2, "aw"
.Lbiased_got2 = .+0x8000
.Lgot_objc_methodNotFound:
.long objc_methodNotFound
.Lgot_objc_methodNotFound_stret:
.long objc_methodNotFound_stret
.Lgot_objc_taggedPointerSecret:
.long objc_taggedPointerSecret
.Lgot_objc_taggedPointerClasses:
.long objc_taggedPointerClasses
#endif
#ifdef OF_LINUX
.section .note.GNU-stack, "", @progbits
#endif
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