test/elf/sectionGroups/sectiongroup-new-members.test

   1 # Checks that the linker picks the first group in the output file when the file
   2 # have some members dont appear in the first group.
   3 # 1a.s
   4 # ------
   5 #
   6 #    .section .text,"axG",%progbits,foo_group,comdat
   7 #    .weak foo
   8 #foo:
   9 #    .word 0
  10 # 1b.s
  11 # -----
  12 #    .section .text,"axG",%progbits,foo_group,comdat
  13 #    .global foo
  14 #    .global bar
  15 #foo:
  16 #    .word 0
  17 #bar:
  18 #RUN: yaml2obj -format=elf -docnum 1 %s -o %t.group1a.o
  19 #RUN: yaml2obj -format=elf -docnum 2 %s -o %t.group1b.o
  20 #RUN: lld -flavor gnu -target x86_64 %t.group1a.o %t.group1b.o \
  21 #RUN: --noinhibit-exec --output-filetype=yaml -o %t2.out.yaml
  22 #RUN: lld -flavor gnu -target x86_64 %t.group1a.o %t.group1b.o \
  23 #RUN: --noinhibit-exec -o %t2.out
  24 #RUN: FileCheck %s -check-prefix=CHECKGROUP < %t2.out.yaml
  25 #RUN: llvm-readobj -sections %t2.out | FileCheck %s -check-prefix=CHECKGROUPSECTIONS
  26 #RUN: llvm-readobj -symbols  %t2.out | FileCheck %s -check-prefix=CHECKSYMBOLS
  27 #CHECKGROUP:  - name:            foo
  28 #CHECKGROUP:    scope:           global
  29 #CHECKGROUP:    merge:           as-weak
  30 #CHECKGROUP:    section-name:    .text
  31 #CHECKGROUP:  - name:            foo_group
  32 #CHECKGROUP:    scope:           global
  33 #CHECKGROUP:    type:            group-comdat
  34 #CHECKGROUP:    section-choice:  custom-required
  35 #CHECKGROUP:    section-name:    .group
  36 #CHECKGROUP:    permissions:     ---
  37 #CHECKGROUP:    references:
  38 #CHECKGROUP:      - kind:            group-child
  39 #CHECKGROUP:        offset:          0
  40 #CHECKGROUP:        target:          foo
  41 #CHECKGROUPSECTIONS:  Section {
  42 #CHECKGROUPSECTIONS:    Name: .text
  43 #CHECKGROUPSECTIONS:    Type: SHT_PROGBITS
  44 #CHECKGROUPSECTIONS:    Flags [ (0x6)
  45 #CHECKGROUPSECTIONS:      SHF_ALLOC (0x2)
  46 #CHECKGROUPSECTIONS:      SHF_EXECINSTR (0x4)
  47 #CHECKGROUPSECTIONS:    ]
  48 #CHECKGROUPSECTIONS:    Size: 2
  49 #CHECKGROUPSECTIONS:    AddressAlignment: 1
  50 #CHECKGROUPSECTIONS:  }
  51 #CHECKSYMBOLS:   Name: foo
  52 #CHECKSYMBOLS:   Type: Function
  53 #CHECKSYMBOLS:   Section: .text
  54 #CHECKSYMBOLS-NOT:   Name: bar
  55 ---
  56 FileHeader:
  57   Class:           ELFCLASS64
  58   Data:            ELFDATA2LSB
  59   OSABI:           ELFOSABI_GNU
  60   Type:            ET_REL
  61   Machine:         EM_X86_64
  62 Sections:
  63   - Name:            .group
  64     Type:            SHT_GROUP
  65     Link:            .symtab
  66     AddressAlign:    0x0000000000000004
  67     Info:            foo_group
  68     Members:
  69       - SectionOrType:   GRP_COMDAT
  70       - SectionOrType:   .text
  71   - Name:            .data
  72     Type:            SHT_PROGBITS
  73     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  74     AddressAlign:    0x0000000000000004
  75     Content:         ''
  76   - Name:            .bss
  77     Type:            SHT_NOBITS
  78     Flags:           [ SHF_WRITE, SHF_ALLOC ]
  79     AddressAlign:    0x0000000000000004
  80     Content:         ''
  81   - Name:            .text
  82     Type:            SHT_PROGBITS
  83     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
  84     AddressAlign:    0x0000000000000001
  85     Content:         '0000'
  86 Symbols:
  87   Local:
  88     - Name:            foo_group
  89       Section:         .group
  90     - Name:            .text
  91       Type:            STT_SECTION
  92       Section:         .text
  93     - Name:            .data
  94       Type:            STT_SECTION
  95       Section:         .data
  96     - Name:            .bss
  97       Type:            STT_SECTION
  98       Section:         .bss
  99   Weak:
 100     - Name:            foo
 101       Section:         .text
 102 ...
 103 ---
 104 FileHeader:
 105   Class:           ELFCLASS64
 106   Data:            ELFDATA2LSB
 107   OSABI:           ELFOSABI_GNU
 108   Type:            ET_REL
 109   Machine:         EM_X86_64
 110 Sections:
 111   - Name:            .group
 112     Type:            SHT_GROUP
 113     Link:            .symtab
 114     AddressAlign:    0x0000000000000004
 115     Info:            foo_group
 116     Members:
 117       - SectionOrType:   GRP_COMDAT
 118       - SectionOrType:   .text
 119   - Name:            .data
 120     Type:            SHT_PROGBITS
 121     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 122     AddressAlign:    0x0000000000000004
 123     Content:         ''
 124   - Name:            .bss
 125     Type:            SHT_NOBITS
 126     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 127     AddressAlign:    0x0000000000000004
 128     Content:         ''
 129   - Name:            .text
 130     Type:            SHT_PROGBITS
 131     Flags:           [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
 132     AddressAlign:    0x0000000000000001
 133     Content:         '0000'
 134 Symbols:
 135   Local:
 136     - Name:            foo_group
 137       Section:         .group
 138     - Name:            .text
 139       Type:            STT_SECTION
 140       Section:         .text
 141     - Name:            .data
 142       Type:            STT_SECTION
 143       Section:         .data
 144     - Name:            .bss
 145       Type:            STT_SECTION
 146       Section:         .bss
 147   Global:
 148     - Name:            bar
 149       Section:         .text
 150       Value:           0x0000000000000002
 151     - Name:            foo
 152       Section:         .text
 153 ...