test/elf/sectionGroups/sectiongroup-with-globalsymbols.test

   1 # This tests that comdat weak symbol can be overridden by a global symbol.
   2 # comdat1.s
   3 #------------------------
   4 #       .weak g1
   5 #        .section .foo,"axG",@progbits,g1,comdat
   6 #g1:
   7 #        nop
   8 #        .global g2
   9 #g2:
  10 #        nop
  11 #!
  12 #
  13 #comdat2.s << \!
  14 #-----------------
  15 #       .global g1
  16 #        .section .foo,"axG",@progbits,g1,comdat
  17 #g1:
  18 #        nop
  19 #        .global g2
  20 #g2:
  21 #        nop
  22 #
  23 #cat > g1.c << \!
  24 #int g1() {
  25 #  return 0;
  26 #}
  27 #
  28 #RUN: yaml2obj -format=elf -docnum 1 %s -o %t.comdat1.o
  29 #RUN: yaml2obj -format=elf -docnum 2 %s -o %t.comdat2.o
  30 #RUN: yaml2obj -format=elf -docnum 3 %s -o %t.g1.o
  31 #RUN: lld -flavor gnu -target x86_64 %t.comdat1.o %t.comdat2.o \
  32 #RUN: %t.g1.o --noinhibit-exec --output-filetype=yaml -o %t2.out.yaml
  33 #RUN: lld -flavor gnu -target x86_64 %t.comdat1.o %t.comdat2.o \
  34 #RUN: %t.g1.o --noinhibit-exec -o %t2.out
  35 #RUN: FileCheck %s -check-prefix=CHECKGROUP < %t2.out.yaml
  36 #RUN: llvm-readobj -sections %t2.out | FileCheck %s -check-prefix=CHECKGROUPSECTIONS
  37 #RUN: llvm-readobj -symbols %t2.out | FileCheck %s -check-prefix=CHECKSYMBOLS
  38 #CHECKGROUP:  - name:            g2
  39 #CHECKGROUP:    content:         [ 90 ]
  40 #CHECKGROUP:    section-choice:  custom-required
  41 #CHECKGROUP:    section-name:    .foo
  42 #CHECKGROUP:  - name:            g1
  43 #CHECKGROUP:    scope:           global
  44 #CHECKGROUP:    content:         [ 55, 48, 89, E5, 31, C0, 5D, C3 ]
  45 #CHECKGROUP:    alignment:       2^4
  46 #CHECKGROUP:    section-name:    .text
  47 #CHECKGROUPSECTIONS:    Name: .text
  48 #CHECKGROUPSECTIONS:    Type: SHT_PROGBITS
  49 #CHECKGROUPSECTIONS:    Flags [
  50 #CHECKGROUPSECTIONS:      SHF_ALLOC
  51 #CHECKGROUPSECTIONS:      SHF_EXECINSTR
  52 #CHECKGROUPSECTIONS:    ]
  53 #CHECKGROUPSECTIONS:    Size: 8
  54 #CHECKGROUPSECTIONS:    Name: .foo
  55 #CHECKGROUPSECTIONS:    Type: SHT_PROGBITS
  56 #CHECKGROUPSECTIONS:    Flags [
  57 #CHECKGROUPSECTIONS:      SHF_ALLOC
  58 #CHECKGROUPSECTIONS:      SHF_EXECINSTR
  59 #CHECKGROUPSECTIONS:    ]
  60 #CHECKGROUPSECTIONS:    Size: 2
  61 #CHECKSYMBOLS:    Name: g2
  62 #CHECKSYMBOLS:    Section: .foo
  63 #CHECKSYMBOLS:    Name: g1
  64 #CHECKSYMBOLS:    Section: .text
  65 ---
  66 FileHeader:
  67   Class:           ELFCLASS64
  68   Data:            ELFDATA2LSB
  69   OSABI:           ELFOSABI_GNU
  70   Type:            ET_REL
  71   Machine:         EM_X86_64
  72 Sections:
  73   - Name:            .group
  74     Type:            SHT_GROUP
  75     Link:            .symtab
  76     AddressAlign:    0x0000000000000004
  77     Info:            g1
  78     Members:
  79       - SectionOrType:   GRP_COMDAT
  80       - SectionOrType:   .foo
  81   - Name:            .text
  82     Type:            SHT_PROGBITS
  83     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
  84     AddressAlign:    0x0000000000000004
  85     Content:         ''
  86   - Name:            .data
  87     Type:            SHT_PROGBITS
  88     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  89     AddressAlign:    0x0000000000000004
  90     Content:         ''
  91   - Name:            .bss
  92     Type:            SHT_NOBITS
  93     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  94     AddressAlign:    0x0000000000000004
  95     Content:         ''
  96   - Name:            .foo
  97     Type:            SHT_PROGBITS
  98     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
  99     AddressAlign:    0x0000000000000001
 100     Content:         '9090'
 101 Symbols:
 102   Local:
 103     - Name:            .text
 104       Type:            STT_SECTION
 105       Section:         .text
 106     - Name:            .data
 107       Type:            STT_SECTION
 108       Section:         .data
 109     - Name:            .bss
 110       Type:            STT_SECTION
 111       Section:         .bss
 112     - Name:            .foo
 113       Type:            STT_SECTION
 114       Section:         .foo
 115   Global:
 116     - Name:            g2
 117       Section:         .foo
 118       Value:           0x0000000000000001
 119   Weak:
 120     - Name:            g1
 121       Section:         .foo
 122 ...
 123 ---
 124 FileHeader:
 125   Class:           ELFCLASS64
 126   Data:            ELFDATA2LSB
 127   OSABI:           ELFOSABI_GNU
 128   Type:            ET_REL
 129   Machine:         EM_X86_64
 130 Sections:
 131   - Name:            .group
 132     Type:            SHT_GROUP
 133     Link:            .symtab
 134     AddressAlign:    0x0000000000000004
 135     Info:            g1
 136     Members:
 137       - SectionOrType:   GRP_COMDAT
 138       - SectionOrType:   .foo
 139   - Name:            .text
 140     Type:            SHT_PROGBITS
 141     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
 142     AddressAlign:    0x0000000000000004
 143     Content:         ''
 144   - Name:            .data
 145     Type:            SHT_PROGBITS
 146     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 147     AddressAlign:    0x0000000000000004
 148     Content:         ''
 149   - Name:            .bss
 150     Type:            SHT_NOBITS
 151     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 152     AddressAlign:    0x0000000000000004
 153     Content:         ''
 154   - Name:            .foo
 155     Type:            SHT_PROGBITS
 156     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
 157     AddressAlign:    0x0000000000000001
 158     Content:         '9090'
 159 Symbols:
 160   Local:
 161     - Name:            .text
 162       Type:            STT_SECTION
 163       Section:         .text
 164     - Name:            .data
 165       Type:            STT_SECTION
 166       Section:         .data
 167     - Name:            .bss
 168       Type:            STT_SECTION
 169       Section:         .bss
 170     - Name:            .foo
 171       Type:            STT_SECTION
 172       Section:         .foo
 173   Global:
 174     - Name:            g1
 175       Section:         .foo
 176     - Name:            g2
 177       Section:         .foo
 178       Value:           0x0000000000000001
 179 ...
 180 ---
 181 FileHeader:
 182   Class:           ELFCLASS64
 183   Data:            ELFDATA2LSB
 184   OSABI:           ELFOSABI_GNU
 185   Type:            ET_REL
 186   Machine:         EM_X86_64
 187 Sections:
 188   - Name:            .text
 189     Type:            SHT_PROGBITS
 190     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
 191     AddressAlign:    0x0000000000000010
 192     Content:         554889E531C05DC3
 193   - Name:            .data
 194     Type:            SHT_PROGBITS
 195     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 196     AddressAlign:    0x0000000000000004
 197     Content:         ''
 198   - Name:            .bss
 199     Type:            SHT_NOBITS
 200     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 201     AddressAlign:    0x0000000000000004
 202     Content:         ''
 203   - Name:            .comment
 204     Type:            SHT_PROGBITS
 205     Flags:           [ SHF_MERGE, SHF_STRINGS ]
 206     AddressAlign:    0x0000000000000001
 207     Content:         00636C616E672076657273696F6E20332E372E3020287472756E6B203232393535372920286C6C766D2F7472756E6B203232393536332900
 208   - Name:            .note.GNU-stack
 209     Type:            SHT_PROGBITS
 210     AddressAlign:    0x0000000000000001
 211     Content:         ''
 212   - Name:            .eh_frame
 213     Type:            SHT_PROGBITS
 214     Flags:           [ SHF_ALLOC ]
 215     AddressAlign:    0x0000000000000008
 216     Content:         1400000000000000037A5200017810011B0C0708900100001C0000001C000000000000000800000000410E108602430D0600000000000000
 217   - Name:            .rela.eh_frame
 218     Type:            SHT_RELA
 219     Link:            .symtab
 220     AddressAlign:    0x0000000000000008
 221     Info:            .eh_frame
 222     Relocations:
 223       - Offset:          0x0000000000000020
 224         Symbol:          .text
 225         Type:            R_X86_64_PC32
 226 Symbols:
 227   Local:
 228     - Name:            g1.c
 229       Type:            STT_FILE
 230     - Name:            .text
 231       Type:            STT_SECTION
 232       Section:         .text
 233     - Name:            .data
 234       Type:            STT_SECTION
 235       Section:         .data
 236     - Name:            .bss
 237       Type:            STT_SECTION
 238       Section:         .bss
 239     - Name:            .comment
 240       Type:            STT_SECTION
 241       Section:         .comment
 242     - Name:            .note.GNU-stack
 243       Type:            STT_SECTION
 244       Section:         .note.GNU-stack
 245     - Name:            .eh_frame
 246       Type:            STT_SECTION
 247       Section:         .eh_frame
 248   Global:
 249     - Name:            g1
 250       Type:            STT_FUNC
 251       Section:         .text
 252       Size:            0x0000000000000008
 253 ...