xref: /llvm-project/llvm/test/tools/llvm-objcopy/ELF/redefine-symbol.test (revision 1562e4552cd1b3d2eadd956c966f8a60e928b8ca) 
1# RUN: yaml2obj %s -o %t
2# RUN: llvm-objcopy --redefine-sym foo=oof --redefine-sym =wasempty --redefine-sym empty= %t %t2
3# RUN: llvm-readobj --symbols %t2 | FileCheck %s
4# RUN: echo "  bar   rab #rename bar  " > %t.rename1.txt
5# RUN: echo "foo oof #rename foo  " > %t.rename2.txt
6# RUN: echo "  empty   ytpme #rename empty  " >> %t.rename2.txt
7# RUN: llvm-objcopy --redefine-syms %t.rename1.txt --redefine-syms %t.rename2.txt %t %t4
8# RUN: llvm-readobj --symbols %t4 | FileCheck %s --check-prefix=MULTIPLE-FILES
9
10!ELF
11FileHeader:
12  Class:           ELFCLASS64
13  Data:            ELFDATA2LSB
14  Type:            ET_EXEC
15  Machine:         EM_X86_64
16Sections:
17  - Name:            .text
18    Type:            SHT_PROGBITS
19    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
20    Address:         0x1000
21    AddressAlign:    0x0000000000000010
22    Content:         "0000000000000000"
23  - Name:            .data
24    Type:            SHT_PROGBITS
25    Flags:           [ SHF_ALLOC ]
26    Address:         0x2000
27    AddressAlign:    0x0000000000000010
28    Content:         "0000000000000000"
29Symbols:
30  - Name:     foo
31    Type:     STT_FUNC
32    Section:  .text
33    Value:    0x1004
34    Binding:  STB_GLOBAL
35  - Name:     bar
36    Type:     STT_OBJECT
37    Section:  .data
38    Value:    0x2000
39    Size:     4
40    Binding:  STB_GLOBAL
41  - Name:     empty
42    Type:     STT_FUNC
43    Section:  .text
44    Value:    0x1008
45    Binding:  STB_GLOBAL
46  - Type:     STT_OBJECT
47    Section:  .data
48    Value:    0x2008
49    Binding:  STB_GLOBAL
50
51#CHECK: Symbols [
52#CHECK-NEXT:  Symbol {
53#CHECK-NEXT:    Name:
54#CHECK-NEXT:    Value: 0x0
55#CHECK-NEXT:    Size: 0
56#CHECK-NEXT:    Binding: Local
57#CHECK-NEXT:    Type: None
58#CHECK-NEXT:    Other: 0
59#CHECK-NEXT:    Section: Undefined
60#CHECK-NEXT:  }
61#CHECK-NEXT:  Symbol {
62#CHECK-NEXT:    Name: oof
63#CHECK-NEXT:    Value: 0x1004
64#CHECK-NEXT:    Size: 0
65#CHECK-NEXT:    Binding: Global
66#CHECK-NEXT:    Type: Function
67#CHECK-NEXT:    Other: 0
68#CHECK-NEXT:    Section: .text
69#CHECK-NEXT:  }
70#CHECK-NEXT:  Symbol {
71#CHECK-NEXT:    Name: bar
72#CHECK-NEXT:    Value: 0x2000
73#CHECK-NEXT:    Size: 4
74#CHECK-NEXT:    Binding: Global
75#CHECK-NEXT:    Type: Object
76#CHECK-NEXT:    Other: 0
77#CHECK-NEXT:    Section: .data
78#CHECK-NEXT:  }
79#CHECK-NEXT:  Symbol {
80#CHECK-NEXT:    Name: (0)
81#CHECK-NEXT:    Value: 0x1008
82#CHECK-NEXT:    Size: 0
83#CHECK-NEXT:    Binding: Global
84#CHECK-NEXT:    Type: Function
85#CHECK-NEXT:    Other: 0
86#CHECK-NEXT:    Section: .text
87#CHECK-NEXT:  }
88#CHECK-NEXT:  Symbol {
89#CHECK-NEXT:    Name: wasempty
90#CHECK-NEXT:    Value: 0x2008
91#CHECK-NEXT:    Size: 0
92#CHECK-NEXT:    Binding: Global
93#CHECK-NEXT:    Type: Object
94#CHECK-NEXT:    Other: 0
95#CHECK-NEXT:    Section: .data
96#CHECK-NEXT:  }
97
98#MULTIPLE-FILES:        Name: oof
99#MULTIPLE-FILES-NEXT:   Value: 0x1004
100#MULTIPLE-FILES:        Name: rab
101#MULTIPLE-FILES-NEXT:   Value: 0x2000
102#MULTIPLE-FILES:        Name: ytpme
103#MULTIPLE-FILES-NEXT:   Value: 0x1008
104
105## Show that it is not an error if a specified symbol is not present.
106# RUN: llvm-objcopy %t2 %t5 --redefine-sym missing=blah
107# RUN: cmp %t2 %t5
108
109## Show that --redefine-sym doesn't chain together.
110# RUN: llvm-objcopy %t2 %t6 --redefine-sym oof=bob --redefine-sym bob=baz
111# RUN: llvm-readobj %t6 --syms | FileCheck %s --check-prefix=CHAIN --implicit-check-not="Name: baz"
112
113# CHAIN: Name: bob
114