1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
# 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
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -dead_strip
# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
# RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -objc_stubs_fast
# 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
# 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
# CHECK: Contents of (__TEXT,__objc_stubs) section
# CHECK-NEXT: _objc_msgSend$foo:
# CHECK-NEXT: adrp x1, 8 ; 0x100008000
# CHECK-NEXT: ldr x1, [x1, #0x10]
# CHECK-NEXT: adrp x16, 4 ; 0x100004000
# CHECK-NEXT: ldr x16, [x16]
# CHECK-NEXT: br x16
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: brk #0x1
# CHECK-NEXT: _objc_msgSend$length:
# CHECK-NEXT: adrp x1, 8 ; 0x100008000
# CHECK-NEXT: ldr x1, [x1, #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-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$foo:
# SMALL-NEXT: adrp x1, 4 ; 0x100004000
# SMALL-NEXT: ldr x1, [x1, #0x10]
# SMALL-NEXT: b
# SMALL-NEXT: _objc_msgSend$length:
# SMALL-NEXT: adrp x1, 4 ; 0x100004000
# SMALL-NEXT: ldr x1, [x1, #0x18]
# 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)
.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
ret
|
