# REQUIRES: aarch64

## This is a regression test which makes sure that when there is an invalid section index
## associated with a section symbol, the linker does not segfault.

## Test YAML content was created using the following steps
## 1. Create an object file from the following assembly 
##     `llvm-mc -filetype=obj -triple=arm64-apple-darwin symbol.s -o symbol.o`
##
##     .text
##     .section __TEST,__mystuff
##     .globl _mysec
## _mysec:
##     .byte 0xC3
##
## 2. Use obj2yaml to convert object file to yaml
##    `obj2yaml symbol.o -o symbol.yaml`
##
## 3. Manually set n_sect value of ltmp1 symbol to 0 instead of 1.
##

# RUN: yaml2obj %s -o %t
# RUN: not %lld -platform_version macos 10.14 11.0 -arch arm64 %t 2>&1 | FileCheck %s --check-prefix=FATAL

# FATAL: error: section symbol ltmp0 in {{.*}} has an invalid section index [0]

--- !mach-o
FileHeader:
  magic:           0xFEEDFACF
  cputype:         0x100000C
  cpusubtype:      0x0
  filetype:        0x1
  ncmds:           3
  sizeofcmds:      336
  flags:           0x0
  reserved:        0x0
LoadCommands:
  - cmd:             LC_SEGMENT_64
    cmdsize:         232
    segname:         ''
    vmaddr:          0
    vmsize:          1
    fileoff:         368
    filesize:        1
    maxprot:         7
    initprot:        7
    nsects:          2
    flags:           0
    Sections:
      - sectname:        __text
        segname:         __TEXT
        addr:            0x0
        size:            0
        offset:          0x170
        align:           0
        reloff:          0x0
        nreloc:          0
        flags:           0x80000000
        reserved1:       0x0
        reserved2:       0x0
        reserved3:       0x0
        content:         ''
      - sectname:        __mystuff
        segname:         __TEST
        addr:            0x0
        size:            1
        offset:          0x170
        align:           0
        reloff:          0x0
        nreloc:          0
        flags:           0x0
        reserved1:       0x0
        reserved2:       0x0
        reserved3:       0x0
        content:         C3
  - cmd:             LC_SYMTAB
    cmdsize:         24
    symoff:          376
    nsyms:           3
    stroff:          424
    strsize:         24
  - cmd:             LC_DYSYMTAB
    cmdsize:         80
    ilocalsym:       0
    nlocalsym:       2
    iextdefsym:      2
    nextdefsym:      1
    iundefsym:       3
    nundefsym:       0
    tocoff:          0
    ntoc:            0
    modtaboff:       0
    nmodtab:         0
    extrefsymoff:    0
    nextrefsyms:     0
    indirectsymoff:  0
    nindirectsyms:   0
    extreloff:       0
    nextrel:         0
    locreloff:       0
    nlocrel:         0
LinkEditData:
  NameList:
    - n_strx:          14
      n_type:          0xE
      n_sect:          0
      n_desc:          0
      n_value:         0
    - n_strx:          8
      n_type:          0xE
      n_sect:          2
      n_desc:          0
      n_value:         0
    - n_strx:          1
      n_type:          0xF
      n_sect:          2
      n_desc:          0
      n_value:         0
  StringTable:
    - ''
    - _mysec
    - ltmp1
    - ltmp0
    - ''
    - ''
    - ''
    - ''
...