test/MC/ELF/merge.s

   1 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump  --dump-section-data | FileCheck  %s
   2
   3 // Test that PIC relocations with local symbols in a mergeable section are done
   4 // with a reference to the symbol. Not sure if this is a linker limitation,
   5 // but this matches the behavior of gas.
   6
   7 // Non-PIC relocations with 0 offset don't use the symbol.
   8
   9
  10         movsd   .Lfoo(%rip), %xmm1
  11         movl    $.Lfoo, %edi
  12         movl    $.Lfoo+2, %edi
  13         jmp     foo@PLT
  14         movq    foo@GOTPCREL, %rax
  15         movq    zed, %rax
  16
  17         .section        .sec1,"aM",@progbits,16
  18 .Lfoo:
  19 zed:
  20         .global zed
  21
  22         .section        bar,"ax",@progbits
  23 foo:
  24
  25 // Section 4 is "sec1"
  26 // CHECK: # Section 0x00000004
  27 // CHECK-NEXT:  (('sh_name', 0x00000012) # '.sec1'
  28
  29 // Symbol number 1 is .Lfoo
  30 // CHECK:      # Symbol 0x00000001
  31 // CHECK-NEXT: (('st_name', 0x00000001) # '.Lfoo'
  32
  33 // Symbol number 2 is foo
  34 // CHECK:      # Symbol 0x00000002
  35 // CHECK-NEXT: (('st_name', 0x00000007) # 'foo'
  36
  37 // Symbol number 6 is section 4
  38 // CHECK:        # Symbol 0x00000006
  39 // CHECK-NEXT:    (('st_name', 0x00000000) # ''
  40 // CHECK-NEXT:     ('st_bind', 0x00000000)
  41 // CHECK-NEXT:     ('st_type', 0x00000003)
  42 // CHECK-NEXT:     ('st_other', 0x00000000)
  43 // CHECK-NEXT:     ('st_shndx', 0x00000004)
  44
  45 // Symbol number 8 is zed
  46 // CHECK:        # Symbol 0x00000008
  47 // CHECK-NEXT:    (('st_name', 0x0000000b) # 'zed'
  48
  49 // Relocation 0 refers to symbol 1
  50 // CHECK:       ('_relocations', [
  51 // CHECK-NEXT:   # Relocation 0
  52 // CHECK-NEXT:   (('r_offset',
  53 // CHECK-NEXT:    ('r_sym', 0x00000001)
  54 // CHECK-NEXT:    ('r_type', 0x00000002
  55 // CHECK-NEXT:    ('r_addend',
  56 // CHECK-NEXT:   ),
  57
  58 // Relocation 1 refers to symbol 6
  59 // CHECK-NEXT:  # Relocation 0x00000001
  60 // CHECK-NEXT: (('r_offset',
  61 // CHECK-NEXT:  ('r_sym', 0x00000006)
  62 // CHECK-NEXT:  ('r_type', 0x0000000a)
  63 // CHECK-NEXT:  ('r_addend',
  64 // CHECK-NEXT: ),
  65
  66 // Relocation 2 refers to symbol 1
  67 // CHECK-NEXT:   # Relocation 0x00000002
  68 // CHECK-NEXT:   (('r_offset',
  69 // CHECK-NEXT:    ('r_sym', 0x00000001)
  70 // CHECK-NEXT:    ('r_type', 0x0000000a
  71 // CHECK-NEXT:    ('r_addend',
  72 // CHECK-NEXT:   ),
  73
  74 // Relocation 3 refers to symbol 2
  75 // CHECK-NEXT:   # Relocation 0x00000003
  76 // CHECK-NEXT:   (('r_offset',
  77 // CHECK-NEXT:    ('r_sym', 0x00000002)
  78 // CHECK-NEXT:    ('r_type', 0x00000004
  79 // CHECK-NEXT:    ('r_addend',
  80 // CHECK-NEXT:   ),
  81
  82 // Relocation 4 refers to symbol 2
  83 // CHECK-NEXT:   # Relocation 0x00000004
  84 // CHECK-NEXT:   (('r_offset',
  85 // CHECK-NEXT:    ('r_sym', 0x00000002)
  86 // CHECK-NEXT:    ('r_type', 0x00000009
  87 // CHECK-NEXT:    ('r_addend',
  88 // CHECK-NEXT:   ),
  89
  90 // Relocation 5 refers to symbol 8
  91 // CHECK-NEXT:   # Relocation 0x00000005
  92 // CHECK-NEXT:   (('r_offset', 0x00000023)
  93 // CHECK-NEXT:    ('r_sym', 0x00000008)
  94 // CHECK-NEXT:    ('r_type', 0x0000000b)
  95 // CHECK-NEXT:    ('r_addend', 0x00000000)
  96 // CHECK-NEXT:   ),
  97 // CHECK-NEXT:  ])