xref: /llvm-project/lld/test/MachO/cstring-dedup.s (revision 2e5989e8140d408cb13181430f60b6adfbf49d43)
1# REQUIRES: x86
2# RUN: rm -rf %t; split-file %s %t
3# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/more-foo.s -o %t/more-foo.o
5# RUN: %lld -dylib %t/test.o %t/more-foo.o -o %t/test
6# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/test | \
7# RUN:   FileCheck %s --check-prefix=STR --implicit-check-not foo --implicit-check-not bar
8# RUN: llvm-objdump --macho --section="__DATA,ptrs" --syms %t/test | FileCheck %s
9# RUN: llvm-readobj --section-headers %t/test | FileCheck %s --check-prefix=HEADER
10
11## Make sure we only have 3 deduplicated strings in __cstring.
12# STR: Contents of (__TEXT,__cstring) section
13# STR: {{[[:xdigit:]]+}} foo
14# STR: {{[[:xdigit:]]+}} barbaz
15# STR: {{[[:xdigit:]]+}} {{$}}
16
17## Make sure both symbol and section relocations point to the right thing.
18# CHECK:      Contents of (__DATA,ptrs) section
19# CHECK-NEXT: __TEXT:__cstring:foo
20# CHECK-NEXT: __TEXT:__cstring:foo
21# CHECK-NEXT: __TEXT:__cstring:foo
22# CHECK-NEXT: __TEXT:__cstring:foo
23# CHECK-NEXT: __TEXT:__cstring:foo
24# CHECK-NEXT: __TEXT:__cstring:foo
25# CHECK-NEXT: __TEXT:__cstring:barbaz
26# CHECK-NEXT: __TEXT:__cstring:baz
27# CHECK-NEXT: __TEXT:__cstring:barbaz
28# CHECK-NEXT: __TEXT:__cstring:baz
29# CHECK-NEXT: __TEXT:__cstring:{{$}}
30# CHECK-NEXT: __TEXT:__cstring:{{$}}
31
32## Make sure the symbol addresses are correct too.
33# CHECK:     SYMBOL TABLE:
34# CHECK-DAG: [[#%.16x,FOO:]]  l     O __TEXT,__cstring _local_foo1
35# CHECK-DAG: [[#FOO]]         l     O __TEXT,__cstring _local_foo2
36# CHECK-DAG: [[#FOO]]         g     O __TEXT,__cstring _globl_foo1
37# CHECK-DAG: [[#FOO]]         g     O __TEXT,__cstring _globl_foo2
38# CHECK-DAG: [[#%.16x,BAR:]]  l     O __TEXT,__cstring _bar1
39# CHECK-DAG: [[#BAR]]         l     O __TEXT,__cstring _bar2
40# CHECK-DAG: [[#%.16x,ZERO:]] l     O __TEXT,__cstring _zero1
41# CHECK-DAG: [[#ZERO]]        l     O __TEXT,__cstring _zero2
42
43## Make sure we set the right alignment and flags.
44# HEADER:        Name: __cstring
45# HEADER-NEXT:   Segment: __TEXT
46# HEADER-NEXT:   Address:
47# HEADER-NEXT:   Size:
48# HEADER-NEXT:   Offset:
49# HEADER-NEXT:   Alignment: 4
50# HEADER-NEXT:   RelocationOffset:
51# HEADER-NEXT:   RelocationCount: 0
52# HEADER-NEXT:   Type: CStringLiterals
53# HEADER-NEXT:   Attributes [ (0x0)
54# HEADER-NEXT:   ]
55# HEADER-NEXT:   Reserved1: 0x0
56# HEADER-NEXT:   Reserved2: 0x0
57# HEADER-NEXT:   Reserved3: 0x0
58
59#--- test.s
60.cstring
61.p2align 2
62_local_foo1:
63  .asciz "foo"
64_local_foo2:
65  .asciz "foo"
66L_.foo1:
67  .asciz "foo"
68L_.foo2:
69  .asciz "foo"
70
71_bar1:
72  .ascii "bar"
73_baz1:
74  .asciz "baz"
75_bar2:
76  .ascii "bar"
77_baz2:
78  .asciz "baz"
79
80_zero1:
81  .asciz ""
82_zero2:
83  .asciz ""
84
85.section __DATA,ptrs,literal_pointers
86.quad L_.foo1
87.quad L_.foo2
88.quad _local_foo1
89.quad _local_foo2
90.quad _globl_foo1
91.quad _globl_foo2
92.quad _bar1
93.quad _baz1
94.quad _bar2
95.quad _baz2
96.quad _zero1
97.quad _zero2
98
99#--- more-foo.s
100.globl _globl_foo1, _globl_foo2
101.cstring
102.p2align 4
103_globl_foo1:
104  .asciz "foo"
105_globl_foo2:
106  .asciz "foo"
107