test/tools/llvm-objcopy/ELF/add-symbol-no-symtab.test

## Test --add-symbol creates .symtab if it does not exist.

# RUN: yaml2obj --docnum=1 %s -o %t

## If a non-SHF_ALLOC SHT_STRTAB exists but SHT_SYMTAB does not, create .symtab
## and set its sh_link to the SHT_STRTAB.
# RUN: llvm-objcopy --remove-section=.symtab %t %t1
# RUN: llvm-objcopy --add-symbol='abs1=1' %t1 %t2
# RUN: llvm-readobj -S %t2 | FileCheck --check-prefix=SEC %s
# RUN: llvm-readelf -s %t2 | FileCheck %s

# SEC:      Index: 1
# SEC-NEXT: Name: .strtab
# SEC-NEXT: Type: SHT_STRTAB
# SEC:      Index: 2
# SEC-NEXT: Name: .shstrtab
# SEC-NEXT: Type: SHT_STRTAB
# SEC:      Index: 3
# SEC-NEXT: Name: .symtab
# SEC-NEXT: Type: SHT_SYMTAB
# SEC-NOT:  }
# SEC:      Link: 1

# CHECK:      0: 0000000000000000 0 NOTYPE LOCAL  DEFAULT UND
# CHECK-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT ABS abs1

## Don't create .symtab if --add-symbol is not specified.
# RUN: llvm-objcopy --remove-section=.symtab --remove-section=.strtab %t %t1
# RUN: llvm-objcopy %t1 %t2
# RUN: llvm-readobj -S %t2 | FileCheck --implicit-check-not=.symtab /dev/null

## Check that we create both .strtab and .symtab.
## We reuse the existing .shstrtab (section names) for symbol names.
## This may look strange but it works.
# RUN: llvm-objcopy --add-symbol='abs1=1' %t1 %t2
# RUN: llvm-readobj -S %t2 | FileCheck --check-prefix=SEC2 %s
# RUN: llvm-readelf -s %t2 | FileCheck %s

# SEC2:      Index: 1
# SEC2-NEXT: Name: .shstrtab
# SEC2-NEXT: Type: SHT_STRTAB
# SEC2:      Index: 2
# SEC2-NEXT: Name: .symtab
# SEC2-NEXT: Type: SHT_SYMTAB
# SEC2-NOT:  }
# SEC2:      Link: 1

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Symbols:
...

## Check the created .symtab does not link to .dynstr (SHF_ALLOC).
# RUN: yaml2obj --docnum=2 %s -o %t
# RUN: llvm-objcopy --remove-section=.symtab --remove-section=.strtab %t %t1
# RUN: llvm-objcopy --add-symbol='abs1=1' %t1 %t2
# RUN: llvm-readobj -S %t2 | FileCheck --check-prefix=SEC3 %s

# SEC3:      Index: 1
# SEC3-NEXT: Name: .shstrtab
# SEC3-NEXT: Type: SHT_STRTAB
# SEC3:      Name: .symtab
# SEC3-NEXT: Type: SHT_SYMTAB
# SEC3-NOT:  }
# SEC3:      Link: 1

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
DynamicSymbols:
  - Name:    dummy
    Binding: STB_GLOBAL
Symbols:
...