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arm64-objc-stubs.s
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# REQUIRES: aarch64
# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t.o
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -U _external_func
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -dead_strip -U _external_func
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -objc_stubs_fast -U _external_func
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
# RUN: llvm-otool -l %t.out | FileCheck %s --check-prefix=FASTALIGN
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -objc_stubs_small -U _external_func
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s --check-prefix=SMALL
# RUN: llvm-otool -l %t.out | FileCheck %s --check-prefix=SMALLALIGN
# RUN: llvm-objdump --section-headers %t.out | FileCheck %s --check-prefix=SECTIONS
# CHECK: Contents of (__TEXT,__objc_stubs) section
# CHECK-NEXT: _objc_msgSend$foo:
# CHECK-NEXT: adrp x1, 8 ; 0x100008000
# CHECK-NEXT: ldr x1, [x1, #0x18]
# CHECK-NEXT: adrp x16, 4 ; 0x100004000
# CHECK-NEXT: ldr x16, [x16]
# CHECK-NEXT: br x16
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: _objc_msgSend$length:
# CHECK-NEXT: adrp x1, 8 ; 0x100008000
# CHECK-NEXT: ldr x1, [x1, #0x20]
# CHECK-NEXT: adrp x16, 4 ; 0x100004000
# CHECK-NEXT: ldr x16, [x16]
# CHECK-NEXT: br x16
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-EMPTY:
# FASTALIGN: sectname __objc_stubs
# FASTALIGN-NEXT: segname __TEXT
# FASTALIGN-NEXT: addr
# FASTALIGN-NEXT: size
# FASTALIGN-NEXT: offset
# FASTALIGN-NEXT: align 2^5 (32)
# SMALL: _objc_msgSend$foo:
# SMALL-NEXT: adrp x1, 8 ; 0x100008000
# SMALL-NEXT: ldr x1, [x1, #0x18]
# SMALL-NEXT: b
# SMALL-NEXT: _objc_msgSend$length:
# SMALL-NEXT: adrp x1, 8 ; 0x100008000
# SMALL-NEXT: ldr x1, [x1, #0x20]
# SMALL-NEXT: b
# SMALLALIGN: sectname __objc_stubs
# SMALLALIGN-NEXT: segname __TEXT
# SMALLALIGN-NEXT: addr
# SMALLALIGN-NEXT: size
# SMALLALIGN-NEXT: offset
# SMALLALIGN-NEXT: align 2^2 (4)
## Check correct section ordering
# SECTIONS: Sections:
# SECTIONS: __text
# SECTIONS: __stubs
# SECTIONS: __objc_stubs
.section __TEXT,__objc_methname,cstring_literals
lselref1:
.asciz "foo"
lselref2:
.asciz "bar"
.section __DATA,__objc_selrefs,literal_pointers,no_dead_strip
.p2align 3
.quad lselref1
.quad lselref2
.text
.globl _objc_msgSend
_objc_msgSend:
ret
.globl _main
_main:
bl _objc_msgSend$length
bl _objc_msgSend$foo
bl _objc_msgSend$foo
bl _external_func
ret