test/MC/MachO/darwin-x86_64-diff-relocs.s

   1 // RUN: llvm-mc -triple x86_64-apple-darwin10 %s -filetype=obj -o - | llvm-readobj --file-headers -S --sd -r --symbols --macho-segment --macho-dysymtab --macho-indirect-symbols | FileCheck %s
   2
   3         .text
   4
   5 // FIXME: llvm-mc doesn't handle this in a way we can make compatible with 'as',
   6 // currently, because of how we handle assembler variables.
   7 //
   8 // See <rdar://problem/7763719> improve handling of absolute symbols
   9
  10 // _baz = 4
  11
  12 _foo:
  13         xorl %eax,%eax
  14 _g0:
  15         xorl %eax,%eax
  16 L0:
  17         jmp 4
  18 //        jmp _baz
  19
  20 // FIXME: Darwin 'as' for historical reasons widens this jump, but doesn't emit
  21 // a relocation. It seems like 'as' widens any jump that is not to a temporary,
  22 // which is inherited from the x86_32 behavior, even though x86_64 could do
  23 // better.
  24 //        jmp _g0
  25
  26         jmp L0
  27         jmp _g1
  28
  29 // FIXME: Darwin 'as' gets this wrong as well, even though it could get it right
  30 // given the other things we do on x86_64. It is using a short jump here. This
  31 // is probably fallout of the hack that exists for x86_32.
  32 //        jmp L1
  33
  34 // FIXME: We don't support this, and would currently get it wrong, it should be a jump to an absolute address.
  35 //        jmp L0 - _g0
  36
  37 //        jmp _g1 - _g0
  38 // FIXME: Darwin 'as' comes up with 'SIGNED' here instead of 'BRANCH'.
  39 //        jmp _g1 - L1
  40 // FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
  41 // branch relocation. Fallout from the other delta hack?
  42 //        jmp L1 - _g0
  43
  44         jmp _g2
  45         jmp L2
  46         jmp _g3
  47         jmp L3
  48 // FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
  49 // branch relocation. Fallout from the other delta hack?
  50 //        jmp L2 - _g3
  51 //        jmp _g3 - _g2
  52 // FIXME: Darwin 'as' comes up with 'SIGNED' here instead of 'BRANCH'.
  53 //        jmp _g3 - L3
  54 // FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
  55 // branch relocation. Fallout from the other delta hack?
  56 //        jmp L3 - _g2
  57
  58         movl %eax,4(%rip)
  59 //        movl %eax,_baz(%rip)
  60         movl %eax,_g0(%rip)
  61         movl %eax,L0(%rip)
  62         movl %eax,_g1(%rip)
  63         movl %eax,L1(%rip)
  64
  65 // FIXME: Darwin 'as' gets most of these wrong, and there is an ambiguity in ATT
  66 // syntax in what they should mean in the first place (absolute or
  67 // rip-relative address).
  68 //        movl %eax,L0 - _g0(%rip)
  69 //        movl %eax,_g1 - _g0(%rip)
  70 //        movl %eax,_g1 - L1(%rip)
  71 //        movl %eax,L1 - _g0(%rip)
  72
  73         movl %eax,_g2(%rip)
  74         movl %eax,L2(%rip)
  75         movl %eax,_g3(%rip)
  76         movl %eax,L3(%rip)
  77
  78 // FIXME: Darwin 'as' gets most of these wrong, and there is an ambiguity in ATT
  79 // syntax in what they should mean in the first place (absolute or
  80 // rip-relative address).
  81 //        movl %eax,L2 - _g2(%rip)
  82 //        movl %eax,_g3 - _g2(%rip)
  83 //        movl %eax,_g3 - L3(%rip)
  84 //        movl %eax,L3 - _g2(%rip)
  85
  86 _g1:
  87         xorl %eax,%eax
  88 L1:
  89         xorl %eax,%eax
  90
  91         .data
  92 _g2:
  93         xorl %eax,%eax
  94 L2:
  95         .quad 4
  96 //        .quad _baz
  97         .quad _g2
  98         .quad L2
  99         .quad _g3
 100         .quad L3
 101         .quad L2 - _g2
 102         .quad _g3 - _g2
 103         .quad L3 - _g2
 104         .quad L3 - _g3
 105
 106         .quad _g0
 107         .quad L0
 108         .quad _g1
 109         .quad L1
 110         .quad L0 - _g0
 111         .quad _g1 - _g0
 112         .quad L1 - _g0
 113         .quad L1 - _g1
 114
 115 _g3:
 116         xorl %eax,%eax
 117 L3:
 118         xorl %eax,%eax
 119
 120 // FIXME: Unfortunately, we do not get these relocations in exactly the same
 121 // order as Darwin 'as'. It turns out that 'as' *usually* ends up emitting
 122 // them in reverse address order, but sometimes it allocates some
 123 // additional relocations late so these end up precede the other entries. I
 124 // haven't figured out the exact criteria for this yet.
 125
 126 // CHECK: File: <stdin>
 127 // CHECK: Format: Mach-O 64-bit x86-64
 128 // CHECK: Arch: x86_64
 129 // CHECK: AddressSize: 64bit
 130 // CHECK: MachHeader {
 131 // CHECK:   Magic: Magic64 (0xFEEDFACF)
 132 // CHECK:   CpuType: X86-64 (0x1000007)
 133 // CHECK:   CpuSubType: CPU_SUBTYPE_X86_64_ALL (0x3)
 134 // CHECK:   FileType: Relocatable (0x1)
 135 // CHECK:   NumOfLoadCommands: 4
 136 // CHECK:   SizeOfLoadCommands: 352
 137 // CHECK:   Flags [ (0x0)
 138 // CHECK:   ]
 139 // CHECK:   Reserved: 0x0
 140 // CHECK: }
 141 // CHECK: Sections [
 142 // CHECK:   Section {
 143 // CHECK:     Index: 0
 144 // CHECK:     Name: __text (5F 5F 74 65 78 74 00 00 00 00 00 00 00 00 00 00)
 145 // CHECK:     Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
 146 // CHECK:     Address: 0x0
 147 // CHECK:     Size: 0x5E
 148 // CHECK:     Offset: 384
 149 // CHECK:     Alignment: 0
 150 // CHECK:     RelocationOffset: 0x26C
 151 // CHECK:     RelocationCount: 12
 152 // CHECK:     Type: Regular (0x0)
 153 // CHECK:     Attributes [ (0x800004)
 154 // CHECK:       PureInstructions (0x800000)
 155 // CHECK:       SomeInstructions (0x4)
 156 // CHECK:     ]
 157 // CHECK:     Reserved1: 0x0
 158 // CHECK:     Reserved2: 0x0
 159 // CHECK:     Reserved3: 0x0
 160 // CHECK:     SectionData (
 161 // CHECK:       0000: 31C031C0 E9040000 00EBF9E9 00000000  |1.1.............|
 162 // CHECK:       0010: E9000000 00E90200 0000E900 000000E9  |................|
 163 // CHECK:       0020: 02000000 89050400 00008905 D2FFFFFF  |................|
 164 // CHECK:       0030: 8905CEFF FFFF8905 00000000 89050200  |................|
 165 // CHECK:       0040: 00008905 00000000 89050200 00008905  |................|
 166 // CHECK:       0050: 00000000 89050200 000031C0 31C0      |..........1.1.|
 167 // CHECK:     )
 168 // CHECK:   }
 169 // CHECK:   Section {
 170 // CHECK:     Index: 1
 171 // CHECK:     Name: __data (5F 5F 64 61 74 61 00 00 00 00 00 00 00 00 00 00)
 172 // CHECK:     Segment: __DATA (5F 5F 44 41 54 41 00 00 00 00 00 00 00 00 00 00)
 173 // CHECK:     Address: 0x5E
 174 // CHECK:     Size: 0x8E
 175 // CHECK:     Offset: 478
 176 // CHECK:     Alignment: 0
 177 // CHECK:     RelocationOffset: 0x2CC
 178 // CHECK:     RelocationCount: 16
 179 // CHECK:     Type: Regular (0x0)
 180 // CHECK:     Attributes [ (0x4)
 181 // CHECK:       SomeInstructions (0x4)
 182 // CHECK:     ]
 183 // CHECK:     Reserved1: 0x0
 184 // CHECK:     Reserved2: 0x0
 185 // CHECK:     Reserved3: 0x0
 186 // CHECK:     SectionData (
 187 // CHECK:       0000: 31C00400 00000000 00000000 00000000  |1...............|
 188 // CHECK:       0010: 00000200 00000000 00000000 00000000  |................|
 189 // CHECK:       0020: 00000200 00000000 00000200 00000000  |................|
 190 // CHECK:       0030: 00000000 00000000 00000200 00000000  |................|
 191 // CHECK:       0040: 00000200 00000000 00000000 00000000  |................|
 192 // CHECK:       0050: 00000200 00000000 00000000 00000000  |................|
 193 // CHECK:       0060: 00000200 00000000 00000200 00000000  |................|
 194 // CHECK:       0070: 00000000 00000000 00000200 00000000  |................|
 195 // CHECK:       0080: 00000200 00000000 000031C0 31C0      |..........1.1.|
 196 // CHECK:     )
 197 // CHECK:   }
 198 // CHECK: ]
 199 // CHECK: Relocations [
 200 // CHECK:   Section __text {
 201 // CHECK:     0x56 1 2 1 X86_64_RELOC_SIGNED 0 _g3
 202 // CHECK:     0x50 1 2 1 X86_64_RELOC_SIGNED 0 _g3
 203 // CHECK:     0x4A 1 2 1 X86_64_RELOC_SIGNED 0 _g2
 204 // CHECK:     0x44 1 2 1 X86_64_RELOC_SIGNED 0 _g2
 205 // CHECK:     0x3E 1 2 1 X86_64_RELOC_SIGNED 0 _g1
 206 // CHECK:     0x38 1 2 1 X86_64_RELOC_SIGNED 0 _g1
 207 // CHECK:     0x20 1 2 1 X86_64_RELOC_BRANCH 0 _g3
 208 // CHECK:     0x1B 1 2 1 X86_64_RELOC_BRANCH 0 _g3
 209 // CHECK:     0x16 1 2 1 X86_64_RELOC_BRANCH 0 _g2
 210 // CHECK:     0x11 1 2 1 X86_64_RELOC_BRANCH 0 _g2
 211 // CHECK:     0xC 1 2 1 X86_64_RELOC_BRANCH 0 _g1
 212 // CHECK:     0x5 1 2 1 X86_64_RELOC_BRANCH 0 _foo
 213 // CHECK:   }
 214 // CHECK:   Section __data {
 215 // CHECK:     0x7A 0 3 1 X86_64_RELOC_SUBTRACTOR 0 _g0
 216 // CHECK:     0x7A 0 3 1 X86_64_RELOC_UNSIGNED 0 _g1
 217 // CHECK:     0x72 0 3 1 X86_64_RELOC_SUBTRACTOR 0 _g0
 218 // CHECK:     0x72 0 3 1 X86_64_RELOC_UNSIGNED 0 _g1
 219 // CHECK:     0x62 0 3 1 X86_64_RELOC_UNSIGNED 0 _g1
 220 // CHECK:     0x5A 0 3 1 X86_64_RELOC_UNSIGNED 0 _g1
 221 // CHECK:     0x52 0 3 1 X86_64_RELOC_UNSIGNED 0 _g0
 222 // CHECK:     0x4A 0 3 1 X86_64_RELOC_UNSIGNED 0 _g0
 223 // CHECK:     0x3A 0 3 1 X86_64_RELOC_SUBTRACTOR 0 _g2
 224 // CHECK:     0x3A 0 3 1 X86_64_RELOC_UNSIGNED 0 _g3
 225 // CHECK:     0x32 0 3 1 X86_64_RELOC_SUBTRACTOR 0 _g2
 226 // CHECK:     0x32 0 3 1 X86_64_RELOC_UNSIGNED 0 _g3
 227 // CHECK:     0x22 0 3 1 X86_64_RELOC_UNSIGNED 0 _g3
 228 // CHECK:     0x1A 0 3 1 X86_64_RELOC_UNSIGNED 0 _g3
 229 // CHECK:     0x12 0 3 1 X86_64_RELOC_UNSIGNED 0 _g2
 230 // CHECK:     0xA 0 3 1 X86_64_RELOC_UNSIGNED 0 _g2
 231 // CHECK:   }
 232 // CHECK: ]
 233 // CHECK: Symbols [
 234 // CHECK:   Symbol {
 235 // CHECK:     Name: _foo (1)
 236 // CHECK:     Type: Section (0xE)
 237 // CHECK:     Section: __text (0x1)
 238 // CHECK:     RefType: UndefinedNonLazy (0x0)
 239 // CHECK:     Flags [ (0x0)
 240 // CHECK:     ]
 241 // CHECK:     Value: 0x0
 242 // CHECK:   }
 243 // CHECK:   Symbol {
 244 // CHECK:     Name: _g0 (18)
 245 // CHECK:     Type: Section (0xE)
 246 // CHECK:     Section: __text (0x1)
 247 // CHECK:     RefType: UndefinedNonLazy (0x0)
 248 // CHECK:     Flags [ (0x0)
 249 // CHECK:     ]
 250 // CHECK:     Value: 0x2
 251 // CHECK:   }
 252 // CHECK:   Symbol {
 253 // CHECK:     Name: _g1 (14)
 254 // CHECK:     Type: Section (0xE)
 255 // CHECK:     Section: __text (0x1)
 256 // CHECK:     RefType: UndefinedNonLazy (0x0)
 257 // CHECK:     Flags [ (0x0)
 258 // CHECK:     ]
 259 // CHECK:     Value: 0x5A
 260 // CHECK:   }
 261 // CHECK:   Symbol {
 262 // CHECK:     Name: _g2 (10)
 263 // CHECK:     Type: Section (0xE)
 264 // CHECK:     Section: __data (0x2)
 265 // CHECK:     RefType: UndefinedNonLazy (0x0)
 266 // CHECK:     Flags [ (0x0)
 267 // CHECK:     ]
 268 // CHECK:     Value: 0x5E
 269 // CHECK:   }
 270 // CHECK:   Symbol {
 271 // CHECK:     Name: _g3 (6)
 272 // CHECK:     Type: Section (0xE)
 273 // CHECK:     Section: __data (0x2)
 274 // CHECK:     RefType: UndefinedNonLazy (0x0)
 275 // CHECK:     Flags [ (0x0)
 276 // CHECK:     ]
 277 // CHECK:     Value: 0xE8
 278 // CHECK:   }
 279 // CHECK: ]
 280 // CHECK: Indirect Symbols {
 281 // CHECK:   Number: 0
 282 // CHECK:   Symbols [
 283 // CHECK:   ]
 284 // CHECK: }
 285 // CHECK: Segment {
 286 // CHECK:   Cmd: LC_SEGMENT_64
 287 // CHECK:   Name:
 288 // CHECK:   Size: 232
 289 // CHECK:   vmaddr: 0x0
 290 // CHECK:   vmsize: 0xEC
 291 // CHECK:   fileoff: 384
 292 // CHECK:   filesize: 236
 293 // CHECK:   maxprot: rwx
 294 // CHECK:   initprot: rwx
 295 // CHECK:   nsects: 2
 296 // CHECK:   flags: 0x0
 297 // CHECK: }
 298 // CHECK: Dysymtab {
 299 // CHECK:   ilocalsym: 0
 300 // CHECK:   nlocalsym: 5
 301 // CHECK:   iextdefsym: 5
 302 // CHECK:   nextdefsym: 0
 303 // CHECK:   iundefsym: 5
 304 // CHECK:   nundefsym: 0
 305 // CHECK:   tocoff: 0
 306 // CHECK:   ntoc: 0
 307 // CHECK:   modtaboff: 0
 308 // CHECK:   nmodtab: 0
 309 // CHECK:   extrefsymoff: 0
 310 // CHECK:   nextrefsyms: 0
 311 // CHECK:   indirectsymoff: 0
 312 // CHECK:   nindirectsyms: 0
 313 // CHECK:   extreloff: 0
 314 // CHECK:   nextrel: 0
 315 // CHECK:   locreloff: 0
 316 // CHECK:   nlocrel: 0
 317 // CHECK: }