llvm-mc/Mach-O: Add support for relocations.

 - I haven't really tried to find the "right" way to store the fixups or apply
   them, yet. This works, but isn't particularly elegant or fast.

 - Still no evaluation support, so we don't actually ever not turn a fixup into
   a relocation entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80089 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 227 insertions, 0 deletions

diff --git a/test/MC/MachO/reloc.s b/test/MC/MachO/reloc.s
new file mode 100644
index 0000000..e86ed8c
--- /dev/null
+++ b/test/MC/MachO/reloc.s
@@ -0,0 +1,227 @@
+// RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s
+
+        .data
+        .long undef
+        .long (undef + 4)
+
+        .globl local_a_ext
+local_a_ext:
+        .long local_a_ext
+
+local_a:
+        .long 0
+local_a_elt:      
+        .long 0
+local_b:
+        .long local_b - local_c + 245
+        .long 0
+local_c:
+        .long 0
+
+
+        .long local_a_elt + 1
+        .long local_a_elt + 10
+        .short local_a_elt + 20
+        .byte local_a_elt + 89
+
+        .const
+
+        .long
+bar:    
+        .long local_a_elt - bar + 33
+
+// CHECK: ('cputype', 7)
+// CHECK: ('cpusubtype', 3)
+// CHECK: ('filetype', 1)
+// CHECK: ('num_load_commands', 1)
+// CHECK: ('load_commands_size', 364)
+// CHECK: ('flag', 0)
+// CHECK: ('load_commands', [
+// CHECK:   # Load Command 0
+// CHECK:  (('command', 1)
+// CHECK:   ('size', 260)
+// CHECK:   ('segment_name', '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:   ('vm_addr', 0)
+// CHECK:   ('vm_size', 47)
+// CHECK:   ('file_offset', 392)
+// CHECK:   ('file_size', 47)
+// CHECK:   ('maxprot', 7)
+// CHECK:   ('initprot', 7)
+// CHECK:   ('num_sections', 3)
+// CHECK:   ('flags', 0)
+// CHECK:   ('sections', [
+// CHECK:     # Section 0
+// CHECK:    (('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('address', 0)
+// CHECK:     ('size', 0)
+// CHECK:     ('offset', 392)
+// CHECK:     ('alignment', 0)
+// CHECK:     ('reloc_offset', 0)
+// CHECK:     ('num_reloc', 0)
+// CHECK:     ('flags', 0x80000000)
+// CHECK:     ('reserved1', 0)
+// CHECK:     ('reserved2', 0)
+// CHECK:    ),
+// CHECK:   ('_relocations', [
+// CHECK:   ])
+// CHECK:   ('_section_data', '')
+// CHECK:     # Section 1
+// CHECK:    (('section_name', '__data\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('segment_name', '__DATA\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('address', 0)
+// CHECK:     ('size', 43)
+// CHECK:     ('offset', 392)
+// CHECK:     ('alignment', 0)
+// CHECK:     ('reloc_offset', 440)
+// CHECK:     ('num_reloc', 9)
+// CHECK:     ('flags', 0x0)
+// CHECK:     ('reserved1', 0)
+// CHECK:     ('reserved2', 0)
+// CHECK:    ),
+// CHECK:   ('_relocations', [
+// CHECK:     # Relocation 0
+// CHECK:     (('word-0', 0x8000002a),
+// CHECK:      ('word-1', 0x10)),
+// CHECK:     # Relocation 1
+// CHECK:     (('word-0', 0x90000028),
+// CHECK:      ('word-1', 0x10)),
+// CHECK:     # Relocation 2
+// CHECK:     (('word-0', 0xa0000024),
+// CHECK:      ('word-1', 0x10)),
+// CHECK:     # Relocation 3
+// CHECK:     (('word-0', 0xa0000020),
+// CHECK:      ('word-1', 0x10)),
+// CHECK:     # Relocation 4
+// CHECK:     (('word-0', 0xa4000014),
+// CHECK:      ('word-1', 0x14)),
+// CHECK:     # Relocation 5
+// CHECK:     (('word-0', 0xa1000000),
+// CHECK:      ('word-1', 0x1c)),
+// CHECK:     # Relocation 6
+// CHECK:     (('word-0', 0x8),
+// CHECK:      ('word-1', 0x4000002)),
+// CHECK:     # Relocation 7
+// CHECK:     (('word-0', 0x4),
+// CHECK:      ('word-1', 0xc000006)),
+// CHECK:     # Relocation 8
+// CHECK:     (('word-0', 0x0),
+// CHECK:      ('word-1', 0xc000006)),
+// CHECK:   ])
+// CHECK:   ('_section_data', '\x00\x00\x00\x00\x04\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x11\x00\x00\x00\x1a\x00\x00\x00$\x00i')
+// CHECK:     # Section 2
+// CHECK:    (('section_name', '__const\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+// CHECK:     ('address', 43)
+// CHECK:     ('size', 4)
+// CHECK:     ('offset', 435)
+// CHECK:     ('alignment', 0)
+// CHECK:     ('reloc_offset', 512)
+// CHECK:     ('num_reloc', 2)
+// CHECK:     ('flags', 0x0)
+// CHECK:     ('reserved1', 0)
+// CHECK:     ('reserved2', 0)
+// CHECK:    ),
+// CHECK:   ('_relocations', [
+// CHECK:     # Relocation 0
+// CHECK:     (('word-0', 0xa4000000),
+// CHECK:      ('word-1', 0x10)),
+// CHECK:     # Relocation 1
+// CHECK:     (('word-0', 0xa1000000),
+// CHECK:      ('word-1', 0x2b)),
+// CHECK:   ])
+// CHECK:   ('_section_data', '\x06\x00\x00\x00')
+// CHECK:   ])
+// CHECK:  ),
+// CHECK:   # Load Command 1
+// CHECK:  (('command', 2)
+// CHECK:   ('size', 24)
+// CHECK:   ('symoff', 528)
+// CHECK:   ('nsyms', 7)
+// CHECK:   ('stroff', 612)
+// CHECK:   ('strsize', 60)
+// CHECK:   ('_string_data', '\x00undef\x00local_a_ext\x00local_a\x00local_a_elt\x00local_b\x00local_c\x00bar\x00\x00')
+// CHECK:   ('_symbols', [
+// CHECK:     # Symbol 0
+// CHECK:    (('n_strx', 19)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 2)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 12)
+// CHECK:     ('_string', 'local_a')
+// CHECK:    ),
+// CHECK:     # Symbol 1
+// CHECK:    (('n_strx', 27)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 2)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 16)
+// CHECK:     ('_string', 'local_a_elt')
+// CHECK:    ),
+// CHECK:     # Symbol 2
+// CHECK:    (('n_strx', 39)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 2)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 20)
+// CHECK:     ('_string', 'local_b')
+// CHECK:    ),
+// CHECK:     # Symbol 3
+// CHECK:    (('n_strx', 47)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 2)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 28)
+// CHECK:     ('_string', 'local_c')
+// CHECK:    ),
+// CHECK:     # Symbol 4
+// CHECK:    (('n_strx', 55)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 3)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 43)
+// CHECK:     ('_string', 'bar')
+// CHECK:    ),
+// CHECK:     # Symbol 5
+// CHECK:    (('n_strx', 7)
+// CHECK:     ('n_type', 0xf)
+// CHECK:     ('n_sect', 2)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 8)
+// CHECK:     ('_string', 'local_a_ext')
+// CHECK:    ),
+// CHECK:     # Symbol 6
+// CHECK:    (('n_strx', 1)
+// CHECK:     ('n_type', 0x1)
+// CHECK:     ('n_sect', 0)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'undef')
+// CHECK:    ),
+// CHECK:   ])
+// CHECK:  ),
+// CHECK:   # Load Command 2
+// CHECK:  (('command', 11)
+// CHECK:   ('size', 80)
+// CHECK:   ('ilocalsym', 0)
+// CHECK:   ('nlocalsym', 5)
+// CHECK:   ('iextdefsym', 5)
+// CHECK:   ('nextdefsym', 1)
+// CHECK:   ('iundefsym', 6)
+// CHECK:   ('nundefsym', 1)
+// CHECK:   ('tocoff', 0)
+// CHECK:   ('ntoc', 0)
+// CHECK:   ('modtaboff', 0)
+// CHECK:   ('nmodtab', 0)
+// CHECK:   ('extrefsymoff', 0)
+// CHECK:   ('nextrefsyms', 0)
+// CHECK:   ('indirectsymoff', 0)
+// CHECK:   ('nindirectsyms', 0)
+// CHECK:   ('extreloff', 0)
+// CHECK:   ('nextrel', 0)
+// CHECK:   ('locreloff', 0)
+// CHECK:   ('nlocrel', 0)
+// CHECK:   ('_indirect_symbols', [
+// CHECK:   ])
+// CHECK:  ),
+// CHECK: ])