llvm-mc/Mach-O: Improve symbol table support:

 - Honor .globl.

 - Set symbol type and section correctly ('nm' now works), and order symbols
   appropriately.

 - Take care to the string table so that the .o matches 'as' exactly (for ease
   of testing).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79740 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 160 insertions, 0 deletions

diff --git a/test/MC/MachO/symbols-1.s b/test/MC/MachO/symbols-1.s
new file mode 100644
index 0000000000..2cf1311eb3
--- /dev/null
+++ b/test/MC/MachO/symbols-1.s
@@ -0,0 +1,160 @@
+// RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | macho-dump | FileCheck %s
+
+sym_local_B:
+.globl sym_globl_def_B
+.globl sym_globl_undef_B
+sym_local_A:
+.globl sym_globl_def_A
+.globl sym_globl_undef_A
+sym_local_C:
+.globl sym_globl_def_C
+.globl sym_globl_undef_C
+        
+sym_globl_def_A: 
+sym_globl_def_B: 
+sym_globl_def_C: 
+        .long 0
+
+// CHECK: ('cputype', 7)
+// CHECK: ('cpusubtype', 3)
+// CHECK: ('filetype', 1)
+// CHECK: ('num_load_commands', 1)
+// CHECK: ('load_commands_size', 228)
+// CHECK: ('flag', 0)
+// CHECK: ('load_commands', [
+// CHECK:   # Load Command 0
+// CHECK:  (('command', 1)
+// CHECK:   ('size', 124)
+// 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', 4)
+// CHECK:   ('file_offset', 256)
+// CHECK:   ('file_size', 4)
+// CHECK:   ('maxprot', 7)
+// CHECK:   ('initprot', 7)
+// CHECK:   ('num_sections', 1)
+// 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', 4)
+// CHECK:     ('offset', 256)
+// CHECK:     ('alignment', 0)
+// CHECK:     ('reloc_offset', 0)
+// CHECK:     ('num_reloc', 0)
+// CHECK:     ('flags', 0x80000000)
+// CHECK:     ('reserved1', 0)
+// CHECK:     ('reserved2', 0)
+// CHECK:    ),
+// CHECK:   ])
+// CHECK:  ),
+// CHECK:   # Load Command 1
+// CHECK:  (('command', 2)
+// CHECK:   ('size', 24)
+// CHECK:   ('symoff', 260)
+// CHECK:   ('nsyms', 9)
+// CHECK:   ('stroff', 368)
+// CHECK:   ('strsize', 140)
+// CHECK:   ('_string_data', '\x00sym_globl_def_B\x00sym_globl_undef_B\x00sym_globl_def_A\x00sym_globl_undef_A\x00sym_globl_def_C\x00sym_globl_undef_C\x00sym_local_B\x00sym_local_A\x00sym_local_C\x00\x00')
+// CHECK:   ('_symbols', [
+// CHECK:     # Symbol 0
+// CHECK:    (('n_strx', 103)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_local_B')
+// CHECK:    ),
+// CHECK:     # Symbol 1
+// CHECK:    (('n_strx', 115)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_local_A')
+// CHECK:    ),
+// CHECK:     # Symbol 2
+// CHECK:    (('n_strx', 127)
+// CHECK:     ('n_type', 0xe)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_local_C')
+// CHECK:    ),
+// CHECK:     # Symbol 3
+// CHECK:    (('n_strx', 35)
+// CHECK:     ('n_type', 0xf)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_def_A')
+// CHECK:    ),
+// CHECK:     # Symbol 4
+// CHECK:    (('n_strx', 1)
+// CHECK:     ('n_type', 0xf)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_def_B')
+// CHECK:    ),
+// CHECK:     # Symbol 5
+// CHECK:    (('n_strx', 69)
+// CHECK:     ('n_type', 0xf)
+// CHECK:     ('n_sect', 1)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_def_C')
+// CHECK:    ),
+// CHECK:     # Symbol 6
+// CHECK:    (('n_strx', 51)
+// CHECK:     ('n_type', 0x1)
+// CHECK:     ('n_sect', 0)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_undef_A')
+// CHECK:    ),
+// CHECK:     # Symbol 7
+// CHECK:    (('n_strx', 17)
+// CHECK:     ('n_type', 0x1)
+// CHECK:     ('n_sect', 0)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_undef_B')
+// CHECK:    ),
+// CHECK:     # Symbol 8
+// CHECK:    (('n_strx', 85)
+// CHECK:     ('n_type', 0x1)
+// CHECK:     ('n_sect', 0)
+// CHECK:     ('n_desc', 0)
+// CHECK:     ('n_value', 0)
+// CHECK:     ('_string', 'sym_globl_undef_C')
+// CHECK:    ),
+// CHECK:   ])
+// CHECK:  ),
+// CHECK:   # Load Command 2
+// CHECK:  (('command', 11)
+// CHECK:   ('size', 80)
+// CHECK:   ('ilocalsym', 0)
+// CHECK:   ('nlocalsym', 3)
+// CHECK:   ('iextdefsym', 3)
+// CHECK:   ('nextdefsym', 3)
+// CHECK:   ('iundefsym', 6)
+// CHECK:   ('nundefsym', 3)
+// 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: ])