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MC/Mach-O/ARM: We always use the SECTDIFF reloc type on ARM, which is

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esp. important given that the LOCAL_SECTDIFF enumeration got redefined.

llvm-svn: 122412
This commit is contained in:
Daniel Dunbar 2010-12-22 16:52:19 +00:00
parent 63f7a3a108
commit cb8ac619a2
2 changed files with 73 additions and 23 deletions
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7
lib/MC/MachObjectWriter.cpp
View File

@ -827,12 +827,7 @@ public:
"' can not be undefined in a subtraction expression");
// Select the appropriate difference relocation type.
//
// Note that there is no longer any semantic difference between these two
// relocation types from the linkers point of view, this is done solely
// for pedantic compatibility with 'as'.
Type = A_SD->isExternal() ? (unsigned)macho::RIT_Difference :
(unsigned)macho::RIT_Generic_LocalDifference;
Type = macho::RIT_Difference;
Value2 = getSymbolAddress(B_SD, Layout);
FixedValue -= getSectionAddress(B_SD->getFragment()->getParent());
}

89
test/MC/MachO/darwin-ARM-reloc.s
View File

@ -7,24 +7,33 @@
_f0:
bl _printf
.data
_d0:
Ld0_0:
.long Lsc0_0 - Ld0_0
.section __TEXT,__cstring,cstring_literals
Lsc0_0:
.long 0
@ CHECK: ('cputype', 12)
@ CHECK: ('cpusubtype', 9)
@ CHECK: ('filetype', 1)
@ CHECK: ('num_load_commands', 3)
@ CHECK: ('load_commands_size', 228)
@ CHECK: ('load_commands_size', 364)
@ CHECK: ('flag', 0)
@ CHECK: ('load_commands', [
@ CHECK: # Load Command 0
@ CHECK: (('command', 1)
@ CHECK: ('size', 124)
@ 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', 4)
@ CHECK: ('file_offset', 256)
@ CHECK: ('file_size', 4)
@ CHECK: ('vm_size', 12)
@ CHECK: ('file_offset', 392)
@ CHECK: ('file_size', 12)
@ CHECK: ('maxprot', 7)
@ CHECK: ('initprot', 7)
@ CHECK: ('num_sections', 1)
@ CHECK: ('num_sections', 3)
@ CHECK: ('flags', 0)
@ CHECK: ('sections', [
@ CHECK: # Section 0
@ -32,9 +41,9 @@ _f0:
@ CHECK: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
@ CHECK: ('address', 0)
@ CHECK: ('size', 4)
@ CHECK: ('offset', 256)
@ CHECK: ('offset', 392)
@ CHECK: ('alignment', 0)
@ CHECK: ('reloc_offset', 260)
@ CHECK: ('reloc_offset', 404)
@ CHECK: ('num_reloc', 1)
@ CHECK: ('flags', 0x80000400)
@ CHECK: ('reserved1', 0)
@ -43,19 +52,57 @@ _f0:
@ CHECK: ('_relocations', [
@ CHECK: # Relocation 0
@ CHECK: (('word-0', 0x0),
@ CHECK: ('word-1', 0x5d000001)),
@ CHECK: ('word-1', 0x5d000002)),
@ CHECK: ])
@ CHECK: ('_section_data', 'feffffeb')
@ 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', 4)
@ CHECK: ('size', 4)
@ CHECK: ('offset', 396)
@ CHECK: ('alignment', 0)
@ CHECK: ('reloc_offset', 412)
@ CHECK: ('num_reloc', 2)
@ CHECK: ('flags', 0x0)
@ CHECK: ('reserved1', 0)
@ CHECK: ('reserved2', 0)
@ CHECK: ),
@ CHECK: ('_relocations', [
@ CHECK: # Relocation 0
@ CHECK: (('word-0', 0xa2000000),
@ CHECK: ('word-1', 0x8)),
@ CHECK: # Relocation 1
@ CHECK: (('word-0', 0xa1000000),
@ CHECK: ('word-1', 0x4)),
@ CHECK: ])
@ CHECK: ('_section_data', '04000000')
@ CHECK: # Section 2
@ CHECK: (('section_name', '__cstring\x00\x00\x00\x00\x00\x00\x00')
@ CHECK: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
@ CHECK: ('address', 8)
@ CHECK: ('size', 4)
@ CHECK: ('offset', 400)
@ CHECK: ('alignment', 0)
@ CHECK: ('reloc_offset', 0)
@ CHECK: ('num_reloc', 0)
@ CHECK: ('flags', 0x2)
@ CHECK: ('reserved1', 0)
@ CHECK: ('reserved2', 0)
@ CHECK: ),
@ CHECK: ('_relocations', [
@ CHECK: ])
@ CHECK: ('_section_data', '00000000')
@ CHECK: ])
@ CHECK: ),
@ CHECK: # Load Command 1
@ CHECK: (('command', 2)
@ CHECK: ('size', 24)
@ CHECK: ('symoff', 268)
@ CHECK: ('nsyms', 2)
@ CHECK: ('stroff', 292)
@ CHECK: ('strsize', 16)
@ CHECK: ('_string_data', '\x00_printf\x00_f0\x00\x00\x00\x00')
@ CHECK: ('symoff', 428)
@ CHECK: ('nsyms', 3)
@ CHECK: ('stroff', 464)
@ CHECK: ('strsize', 20)
@ CHECK: ('_string_data', '\x00_printf\x00_f0\x00_d0\x00\x00\x00\x00')
@ CHECK: ('_symbols', [
@ CHECK: # Symbol 0
@ CHECK: (('n_strx', 9)
@ -66,6 +113,14 @@ _f0:
@ CHECK: ('_string', '_f0')
@ CHECK: ),
@ CHECK: # Symbol 1
@ CHECK: (('n_strx', 13)
@ CHECK: ('n_type', 0xe)
@ CHECK: ('n_sect', 2)
@ CHECK: ('n_desc', 0)
@ CHECK: ('n_value', 4)
@ CHECK: ('_string', '_d0')
@ CHECK: ),
@ CHECK: # Symbol 2
@ CHECK: (('n_strx', 1)
@ CHECK: ('n_type', 0x1)
@ CHECK: ('n_sect', 0)
@ -79,10 +134,10 @@ _f0:
@ CHECK: (('command', 11)
@ CHECK: ('size', 80)
@ CHECK: ('ilocalsym', 0)
@ CHECK: ('nlocalsym', 1)
@ CHECK: ('iextdefsym', 1)
@ CHECK: ('nlocalsym', 2)
@ CHECK: ('iextdefsym', 2)
@ CHECK: ('nextdefsym', 0)
@ CHECK: ('iundefsym', 1)
@ CHECK: ('iundefsym', 2)
@ CHECK: ('nundefsym', 1)
@ CHECK: ('tocoff', 0)
@ CHECK: ('ntoc', 0)