symtab-link.test | Explore in Territory

# RUN: yaml2obj %s -o %t
## No-op copy.
# RUN: llvm-objcopy %t %t2
# RUN: llvm-readobj --sections %t2 | FileCheck %s
## No-op strip.
# RUN: cp %t %t3
# RUN: llvm-strip --no-strip-all %t3
# RUN: llvm-readobj --sections %t3 | FileCheck %s
## Add symbol.
# RUN: llvm-objcopy --add-symbol=another=.text:0,function %t %t4
# RUN: llvm-readobj --sections %t4 | FileCheck %s

## A section with sh_link referencing SHT_SYMTAB indicates that its content may
## use the old symbol indices. If the symbol indices change, reset sh_link to 0
## to inform tools like linkers that the sh_link has been invalidated.

## Strip first symbol.
# RUN: llvm-objcopy --strip-symbol bar %t %t5
# RUN: llvm-readobj --sections %t5 | FileCheck %s --check-prefix=LINK-0
## Strip last symbol.
# RUN: llvm-objcopy --strip-symbol baz %t %t6
# RUN: llvm-readobj --sections %t6 | FileCheck %s --check-prefix=LINK-0
## Re-order symbols.
# RUN: llvm-objcopy --localize-symbol baz %t %t7
# RUN: llvm-readobj --sections %t7 | FileCheck %s --check-prefix=LINK-0
## Remove .text section.
# RUN: llvm-objcopy --remove-section=.text %t %t8
# RUN: llvm-readobj --sections %t8 | FileCheck %s --check-prefix=LINK-0

!ELF
FileHeader:
  Class:           ELFCLASS64
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_X86_64
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    Address:         0x1000
    AddressAlign:    0x0000000000000010
    Size:            32
  - Name:            .foo
    Link:            .symtab
    Type:            SHT_PROGBITS
    Flags:           [ ]
Symbols:
  - Name:     bar
    Type:     STT_FUNC
    Size:     8
    Section:  .text
    Value:    0x1000
    Binding:  STB_GLOBAL
  - Name:     baz
    Type:     STT_FUNC
    Size:     8
    Section:  .text
    Value:    0x1010
    Binding:  STB_GLOBAL

# CHECK:      Name: .foo
# CHECK-NEXT: Type:
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size:
# CHECK-NEXT: Link: [[#SYMTABIDX:]]

# CHECK:      Index: [[#SYMTABIDX]]
# CHECK-NEXT: Name: .symtab
# CHECK-NEXT: Type: SHT_SYMTAB

# LINK-0:      Name: .foo
# LINK-0-NEXT: Type:
# LINK-0-NEXT: Flags [ (0x0)
# LINK-0-NEXT: ]
# LINK-0-NEXT: Address:
# LINK-0-NEXT: Offset:
# LINK-0-NEXT: Size:
# LINK-0-NEXT: Link: 0
llvm/llvm/test/tools/llvm-objcopy/ELF/symtab-link.test
