test/MC/ELF/section.s

   1 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump  | FileCheck %s
   2
   3 // Test that these names are accepted.
   4
   5 .section        .note.GNU-stack,"",@progbits
   6 .section        .note.GNU-stack2,"",%progbits
   7 .section        .note.GNU-,"",@progbits
   8 .section        -.note.GNU,"",@progbits
   9
  10 // CHECK: ('sh_name', 0x00000038) # '.note.GNU-stack'
  11 // CHECK: ('sh_name', 0x0000008f) # '.note.GNU-stack2'
  12 // CHECK: ('sh_name', 0x000000a0) # '.note.GNU-'
  13 // CHECK: ('sh_name', 0x00000084) # '-.note.GNU'
  14
  15 // Test that the defaults are used
  16
  17 .section        .init
  18 .section        .fini
  19 .section        .rodata
  20 .section        zed, ""
  21
  22 // CHECK:      (('sh_name', 0x00000012) # '.init'
  23 // CHECK-NEXT:  ('sh_type', 0x00000001)
  24 // CHECK-NEXT:  ('sh_flags', 0x00000006)
  25 // CHECK-NEXT:  ('sh_addr', 0x00000000)
  26 // CHECK-NEXT:  ('sh_offset', 0x00000050)
  27 // CHECK-NEXT:  ('sh_size', 0x00000000)
  28 // CHECK-NEXT:  ('sh_link', 0x00000000)
  29 // CHECK-NEXT:  ('sh_info', 0x00000000)
  30 // CHECK-NEXT:  ('sh_addralign', 0x00000001)
  31 // CHECK-NEXT:  ('sh_entsize', 0x00000000)
  32 // CHECK-NEXT: ),
  33 // CHECK-NEXT: # Section 0x0000000b
  34 // CHECK-NEXT: (('sh_name', 0x00000048) # '.fini'
  35 // CHECK-NEXT:  ('sh_type', 0x00000001)
  36 // CHECK-NEXT:  ('sh_flags', 0x00000006)
  37 // CHECK-NEXT:  ('sh_addr', 0x00000000)
  38 // CHECK-NEXT:  ('sh_offset', 0x00000050)
  39 // CHECK-NEXT:  ('sh_size', 0x00000000)
  40 // CHECK-NEXT:  ('sh_link', 0x00000000)
  41 // CHECK-NEXT:  ('sh_info', 0x00000000)
  42 // CHECK-NEXT:  ('sh_addralign', 0x00000001)
  43 // CHECK-NEXT:  ('sh_entsize', 0x00000000)
  44 // CHECK-NEXT: ),
  45 // CHECK-NEXT: # Section 0x0000000c
  46 // CHECK-NEXT: (('sh_name', 0x00000076) # '.rodata'
  47 // CHECK-NEXT:  ('sh_type', 0x00000001)
  48 // CHECK-NEXT:  ('sh_flags', 0x00000002)
  49 // CHECK-NEXT:  ('sh_addr', 0x00000000)
  50 // CHECK-NEXT:  ('sh_offset', 0x00000050)
  51 // CHECK-NEXT:  ('sh_size', 0x00000000)
  52 // CHECK-NEXT:  ('sh_link', 0x00000000)
  53 // CHECK-NEXT:  ('sh_info', 0x00000000)
  54 // CHECK-NEXT:  ('sh_addralign', 0x00000001)
  55 // CHECK-NEXT:  ('sh_entsize', 0x00000000)
  56 // CHECK-NEXT: ),
  57 // CHECK-NEXT: # Section 0x0000000d
  58 // CHECK-NEXT: (('sh_name', 0x00000058) # 'zed'
  59 // CHECK-NEXT:  ('sh_type', 0x00000001)
  60 // CHECK-NEXT:  ('sh_flags', 0x00000000)
  61 // CHECK-NEXT:  ('sh_addr', 0x00000000)
  62 // CHECK-NEXT:  ('sh_offset', 0x00000050)
  63 // CHECK-NEXT:  ('sh_size', 0x00000000)
  64 // CHECK-NEXT:  ('sh_link', 0x00000000)
  65 // CHECK-NEXT:  ('sh_info', 0x00000000)
  66 // CHECK-NEXT:  ('sh_addralign', 0x00000001)
  67 // CHECK-NEXT:  ('sh_entsize', 0x00000000)
  68 // CHECK-NEXT: ),
  69
  70 .section        .note.test,"",@note
  71 // CHECK:       (('sh_name', 0x00000007) # '.note.test'
  72 // CHECK-NEXT:   ('sh_type', 0x00000007)
  73 // CHECK-NEXT:   ('sh_flags', 0x00000000)
  74 // CHECK-NEXT:   ('sh_addr', 0x00000000)
  75 // CHECK-NEXT:   ('sh_offset', 0x00000050)
  76 // CHECK-NEXT:   ('sh_size', 0x00000000)
  77 // CHECK-NEXT:   ('sh_link', 0x00000000)
  78 // CHECK-NEXT:   ('sh_info', 0x00000000)
  79 // CHECK-NEXT:   ('sh_addralign', 0x00000001)
  80 // CHECK-NEXT:   ('sh_entsize', 0x00000000)
  81 // CHECK-NEXT:  ),
  82
  83 // Test that we can parse these
  84 foo:
  85 bar:
  86 .section        .text.foo,"axG",@progbits,foo,comdat
  87 .section        .text.bar,"axMG",@progbits,42,bar,comdat
  88
  89 // Test that the default values are not used
  90
  91 .section .eh_frame,"a",@unwind
  92
  93 // CHECK:       (('sh_name', 0x0000004e) # '.eh_frame'
  94 // CHECK-NEXT:   ('sh_type', 0x70000001)
  95 // CHECK-NEXT:   ('sh_flags', 0x00000002)
  96 // CHECK-NEXT:   ('sh_addr', 0x00000000)
  97 // CHECK-NEXT:   ('sh_offset', 0x00000050)
  98 // CHECK-NEXT:   ('sh_size', 0x00000000)
  99 // CHECK-NEXT:   ('sh_link', 0x00000000)
 100 // CHECK-NEXT:   ('sh_info', 0x00000000)
 101 // CHECK-NEXT:   ('sh_addralign', 0x00000001)
 102 // CHECK-NEXT:   ('sh_entsize', 0x00000000)
 103 // CHECK-NEXT:  ),
 104
 105 // Test that we handle the strings like gas
 106 .section bar-"foo"
 107 .section "foo"
 108
 109 // CHECK: ('sh_name', 0x000000ab) # 'bar-"foo"'
 110 // CHECK: ('sh_name', 0x00000034) # 'foo'