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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
# REQUIRES: x86
# RUN: rm -rf %t; split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-empty.s -o %t/align-empty.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-4-0.s -o %t/align-4-0.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-4-2.s -o %t/align-4-2.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-0.s -o %t/align-16-0.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-2.s -o %t/align-16-2.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-4.s -o %t/align-16-4.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-8.s -o %t/align-16-8.o
## Check that we preserve the alignment of cstrings. Alignment is determined
## not by section alignment but by the number of trailing zeros of the cstring's
## address in the input object file.
## The non-dedup case is not particularly interesting since the null bytes don't
## get dedup'ed, meaning that the output strings get their offsets "naturally"
## preserved.
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-0.o %t/align-16-0.o -o %t/align-4-0-16-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-0-16-0 | \
# RUN: FileCheck %s -D#OFF1=4 -D#OFF2=16
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-0.o %t/align-4-0.o -o %t/align-16-0-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-0-4-0 | \
# RUN: FileCheck %s -D#OFF1=16 -D#OFF2=20
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-2.o %t/align-16-0.o -o %t/align-4-2-16-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-2-16-0 | \
# RUN: FileCheck %s -D#OFF1=6 -D#OFF2=16
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-0.o %t/align-4-2.o -o %t/align-16-0-4-2
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-0-4-2 | \
# RUN: FileCheck %s -D#OFF1=16 -D#OFF2=22
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-0.o %t/align-16-2.o -o %t/align-4-0-16-2
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-0-16-2 | \
# RUN: FileCheck %s -D#OFF1=4 -D#OFF2=18
# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-2.o %t/align-4-0.o -o %t/align-16-2-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-2-4-0 | \
# RUN: FileCheck %s -D#OFF1=18 -D#OFF2=20
# CHECK: Contents of (__TEXT,__cstring) section
# CHECK-NEXT: [[#%.16x,START:]] {{$}}
# CHECK: [[#%.16x,START+OFF1]] a{{$}}
# CHECK: [[#%.16x,START+OFF2]] a{{$}}
# CHECK-EMPTY:
## The dedup cases are more interesting...
## Same offset, different alignments => pick higher alignment
# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-0.o -o %t/dedup-4-0-16-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
# RUN: %lld -dylib %t/align-empty.o %t/align-16-0.o %t/align-4-0.o -o %t/dedup-16-0-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-0-4-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
## 16 byte alignment vs 2 byte offset => align to 16 bytes
# RUN: %lld -dylib %t/align-empty.o %t/align-4-2.o %t/align-16-0.o -o %t/dedup-4-2-16-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-2-16-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
# RUN: %lld -dylib %t/align-empty.o %t/align-16-0.o %t/align-4-2.o -o %t/dedup-16-0-4-2
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-0-4-2 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
## 4 byte alignment vs 2 byte offset => align to 4 bytes
# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-2.o -o %t/dedup-4-0-16-2
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-2 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
# RUN: %lld -dylib %t/align-empty.o %t/align-16-2.o %t/align-4-0.o -o %t/dedup-16-2-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-2-4-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
## Both inputs are 4-byte aligned, one via offset and the other via section alignment
# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-4.o -o %t/dedup-4-0-16-4
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-4 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
# RUN: %lld -dylib %t/align-empty.o %t/align-16-4.o %t/align-4-0.o -o %t/dedup-16-4-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-4-4-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
## 8-byte offset vs 4-byte section alignment => align to 8 bytes
# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-8.o -o %t/dedup-4-0-16-8
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-8 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=8
# RUN: %lld -dylib %t/align-empty.o %t/align-16-8.o %t/align-4-0.o -o %t/dedup-16-8-4-0
# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-8-4-0 | \
# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=8
# DEDUP: Contents of (__TEXT,__cstring) section
# DEDUP-NEXT: [[#%.16x,START:]] {{$}}
# DEDUP: [[#%.16x,START+OFF]] a{{$}}
# DEDUP-EMPTY:
#--- align-empty.s
## We use this file to create an empty string at the start of every output
## file's .cstring section. This makes the test cases more interesting since LLD
## can't place the string "a" at the trivially-aligned zero offset.
.cstring
.p2align 2
.asciz ""
#--- align-4-0.s
.cstring
.p2align 2
.asciz "a"
#--- align-4-2.s
.cstring
.p2align 2
.zero 0x2
.asciz "a"
#--- align-16-0.s
.cstring
.p2align 4
.asciz "a"
#--- align-16-2.s
.cstring
.p2align 4
.zero 0x2
.asciz "a"
#--- align-16-4.s
.cstring
.p2align 4
.zero 0x4
.asciz "a"
#--- align-16-8.s
.cstring
.p2align 4
.zero 0x8
.asciz "a"
|
