test/elf/sectionGroups/sectiongroup-with-undef-signature.test

   1 # This tests that comdat undef symbol is overridden by a global symbol.
   2 # comdat1.s
   3 #------------------------
   4 # .section .foo,"axG",@progbits,g1,comdat
   5 # word g1
   6 #
   7 #comdat2.s << \!
   8 #-----------------
   9 #    .global g1
  10 #    .section .foo,"axG",@progbits,g1,comdat
  11 #g1:
  12 #        nop
  13 #
  14 #global-g1.c
  15 #-----------
  16 #int g1=10;
  17 #
  18 #RUN: yaml2obj -format=elf -docnum 1 %s -o %t.comdat1.o
  19 #RUN: yaml2obj -format=elf -docnum 2 %s -o %t.comdat2.o
  20 #RUN: yaml2obj -format=elf -docnum 3 %s -o %t.g1.o
  21 #RUN: lld -flavor gnu -target x86_64 %t.comdat1.o %t.comdat2.o \
  22 #RUN: %t.g1.o --noinhibit-exec --output-filetype=yaml -o %t2.out.yaml
  23 #RUN: lld -flavor gnu -target x86_64 %t.comdat1.o %t.comdat2.o \
  24 #RUN: %t.g1.o --noinhibit-exec -o %t2.out
  25 #RUN: FileCheck %s -check-prefix=CHECKGROUP < %t2.out.yaml
  26 #RUN: llvm-readobj -sections %t2.out | FileCheck %s -check-prefix=CHECKGROUPSECTIONS
  27 #RUN: llvm-readobj -symbols %t2.out | FileCheck %s -check-prefix=CHECKSYMBOLS
  28 #CHECKGROUP:  - name:            g1
  29 #CHECKGROUP:    scope:           global
  30 #CHECKGROUP:    content:         [ 0A, 00, 00, 00 ]
  31 #CHECKGROUP:    section-name:    .data
  32 #CHECKGROUPSECTIONS:    Name: .foo
  33 #CHECKGROUPSECTIONS:    Type: SHT_PROGBITS
  34 #CHECKGROUPSECTIONS:    Flags [
  35 #CHECKGROUPSECTIONS:      SHF_ALLOC
  36 #CHECKGROUPSECTIONS:      SHF_EXECINSTR
  37 #CHECKGROUPSECTIONS:    ]
  38 #CHECKGROUPSECTIONS:    Size: 2
  39 #CHECKGROUPSECTIONS:    Name: .data
  40 #CHECKGROUPSECTIONS:    Type: SHT_PROGBITS
  41 #CHECKGROUPSECTIONS:    Flags [
  42 #CHECKGROUPSECTIONS:      SHF_ALLOC
  43 #CHECKGROUPSECTIONS:      SHF_WRITE
  44 #CHECKGROUPSECTIONS:    ]
  45 #CHECKGROUPSECTIONS:    Size: 4
  46 #CHECKSYMBOLS:    Name: g1
  47 #CHECKSYMBOLS:    Section: .data
  48 ---
  49 FileHeader:
  50   Class:           ELFCLASS64
  51   Data:            ELFDATA2LSB
  52   OSABI:           ELFOSABI_GNU
  53   Type:            ET_REL
  54   Machine:         EM_X86_64
  55 Sections:
  56   - Name:            .group
  57     Type:            SHT_GROUP
  58     Link:            .symtab
  59     AddressAlign:    0x0000000000000004
  60     Info:            g1
  61     Members:
  62       - SectionOrType:   GRP_COMDAT
  63       - SectionOrType:   .foo
  64       - SectionOrType:   .rela.foo
  65   - Name:            .text
  66     Type:            SHT_PROGBITS
  67     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
  68     AddressAlign:    0x0000000000000004
  69     Content:         ''
  70   - Name:            .data
  71     Type:            SHT_PROGBITS
  72     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  73     AddressAlign:    0x0000000000000004
  74     Content:         ''
  75   - Name:            .bss
  76     Type:            SHT_NOBITS
  77     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  78     AddressAlign:    0x0000000000000004
  79     Content:         ''
  80   - Name:            .foo
  81     Type:            SHT_PROGBITS
  82     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
  83     AddressAlign:    0x0000000000000001
  84     Content:         '0000'
  85   - Name:            .rela.foo
  86     Type:            SHT_RELA
  87     Flags:           [ SHF_GROUP ]
  88     Link:            .symtab
  89     AddressAlign:    0x0000000000000008
  90     Info:            .foo
  91     Relocations:
  92       - Offset:          0x0000000000000000
  93         Symbol:          g1
  94         Type:            R_X86_64_16
  95 Symbols:
  96   Local:
  97     - Name:            .text
  98       Type:            STT_SECTION
  99       Section:         .text
 100     - Name:            .data
 101       Type:            STT_SECTION
 102       Section:         .data
 103     - Name:            .bss
 104       Type:            STT_SECTION
 105       Section:         .bss
 106     - Name:            .foo
 107       Type:            STT_SECTION
 108       Section:         .foo
 109   Global:
 110     - Name:            g1
 111 ...
 112 ---
 113 FileHeader:
 114   Class:           ELFCLASS64
 115   Data:            ELFDATA2LSB
 116   OSABI:           ELFOSABI_GNU
 117   Type:            ET_REL
 118   Machine:         EM_X86_64
 119 Sections:
 120   - Name:            .group
 121     Type:            SHT_GROUP
 122     Link:            .symtab
 123     AddressAlign:    0x0000000000000004
 124     Info:            g1
 125     Members:
 126       - SectionOrType:   GRP_COMDAT
 127       - SectionOrType:   .foo
 128   - Name:            .text
 129     Type:            SHT_PROGBITS
 130     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
 131     AddressAlign:    0x0000000000000004
 132     Content:         ''
 133   - Name:            .data
 134     Type:            SHT_PROGBITS
 135     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 136     AddressAlign:    0x0000000000000004
 137     Content:         ''
 138   - Name:            .bss
 139     Type:            SHT_NOBITS
 140     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 141     AddressAlign:    0x0000000000000004
 142     Content:         ''
 143   - Name:            .foo
 144     Type:            SHT_PROGBITS
 145     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
 146     AddressAlign:    0x0000000000000001
 147     Content:         '90'
 148 Symbols:
 149   Local:
 150     - Name:            .text
 151       Type:            STT_SECTION
 152       Section:         .text
 153     - Name:            .data
 154       Type:            STT_SECTION
 155       Section:         .data
 156     - Name:            .bss
 157       Type:            STT_SECTION
 158       Section:         .bss
 159     - Name:            .foo
 160       Type:            STT_SECTION
 161       Section:         .foo
 162   Global:
 163     - Name:            g1
 164       Section:         .foo
 165 ...
 166 ---
 167 FileHeader:
 168   Class:           ELFCLASS64
 169   Data:            ELFDATA2LSB
 170   OSABI:           ELFOSABI_GNU
 171   Type:            ET_REL
 172   Machine:         EM_X86_64
 173 Sections:
 174   - Name:            .text
 175     Type:            SHT_PROGBITS
 176     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
 177     AddressAlign:    0x0000000000000004
 178     Content:         ''
 179   - Name:            .data
 180     Type:            SHT_PROGBITS
 181     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 182     AddressAlign:    0x0000000000000004
 183     Content:         0A000000
 184   - Name:            .bss
 185     Type:            SHT_NOBITS
 186     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 187     AddressAlign:    0x0000000000000004
 188     Content:         ''
 189   - Name:            .comment
 190     Type:            SHT_PROGBITS
 191     Flags:           [ SHF_MERGE, SHF_STRINGS ]
 192     AddressAlign:    0x0000000000000001
 193     Content:         00636C616E672076657273696F6E20332E372E3020287472756E6B203232393535372920286C6C766D2F7472756E6B203232393536332900
 194   - Name:            .note.GNU-stack
 195     Type:            SHT_PROGBITS
 196     AddressAlign:    0x0000000000000001
 197     Content:         ''
 198 Symbols:
 199   Local:
 200     - Name:            global-g1.c
 201       Type:            STT_FILE
 202     - Name:            .text
 203       Type:            STT_SECTION
 204       Section:         .text
 205     - Name:            .data
 206       Type:            STT_SECTION
 207       Section:         .data
 208     - Name:            .bss
 209       Type:            STT_SECTION
 210       Section:         .bss
 211     - Name:            .comment
 212       Type:            STT_SECTION
 213       Section:         .comment
 214     - Name:            .note.GNU-stack
 215       Type:            STT_SECTION
 216       Section:         .note.GNU-stack
 217   Global:
 218     - Name:            g1
 219       Type:            STT_OBJECT
 220       Section:         .data
 221       Size:            0x0000000000000004
 222 ...