forked from OSchip/llvm-project
MC/Mach-O/ARM: Start handling some Thumb branches.
llvm-svn: 122547
This commit is contained in:
Daniel Dunbar
parent
5614c46fcf
commit
7f2bb4dcae
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@ -931,6 +931,20 @@ public:
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// Report as 'long', even though that is not quite accurate.
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Log2Size = llvm::Log2_32(4);
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return true;
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// Handle Thumb branches.
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case ARM::fixup_arm_thumb_br:
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Log2Size = llvm::Log2_32(2);
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return true;
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case ARM::fixup_arm_thumb_bl:
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Log2Size = llvm::Log2_32(4);
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return true;
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case ARM::fixup_arm_thumb_blx:
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// Report as 'long', even though that is not quite accurate.
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Log2Size = llvm::Log2_32(4);
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return true;
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}
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}
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void RecordARMRelocation(const MCAssembler &Asm, const MCAsmLayout &Layout,
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@ -0,0 +1,139 @@
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@ RUN: llvm-mc -n -triple thumbv7-apple-darwin10 %s -filetype=obj -o %t.obj
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@ RUN: macho-dump --dump-section-data < %t.obj > %t.dump
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@ RUN: FileCheck < %t.dump %s
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.syntax unified
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.section __TEXT,__text,regular,pure_instructions
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.globl _main
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.align 2
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.code 16
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.thumb_func _main
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_main:
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LPC0_0:
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blx _printf
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.align 2
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LCPI0_0:
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.long L_.str-(LPC0_0+4)
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.section __TEXT,__cstring,cstring_literals
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.align 2
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L_.str:
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.asciz "s0"
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.subsections_via_symbols
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@ CHECK: ('cputype', 12)
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@ CHECK: ('cpusubtype', 9)
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@ CHECK: ('filetype', 1)
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@ CHECK: ('num_load_commands', 3)
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@ CHECK: ('load_commands_size', 296)
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@ CHECK: ('flag', 8192)
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@ CHECK: ('load_commands', [
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@ CHECK: # Load Command 0
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@ CHECK: (('command', 1)
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@ CHECK: ('size', 192)
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@ CHECK: ('segment_name', '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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@ CHECK: ('vm_addr', 0)
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@ CHECK: ('vm_size', 11)
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@ CHECK: ('file_offset', 324)
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@ CHECK: ('file_size', 11)
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@ CHECK: ('maxprot', 7)
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@ CHECK: ('initprot', 7)
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@ CHECK: ('num_sections', 2)
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@ CHECK: ('flags', 0)
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@ CHECK: ('sections', [
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@ CHECK: # Section 0
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@ CHECK: (('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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@ CHECK: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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@ CHECK: ('address', 0)
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@ CHECK: ('size', 8)
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@ CHECK: ('offset', 324)
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@ CHECK: ('alignment', 2)
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@ CHECK: ('reloc_offset', 336)
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@ CHECK: ('num_reloc', 3)
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@ CHECK: ('flags', 0x80000400)
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@ CHECK: ('reserved1', 0)
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@ CHECK: ('reserved2', 0)
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@ CHECK: ),
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@ CHECK: ('_relocations', [
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@ CHECK: # Relocation 0
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@ CHECK: (('word-0', 0xa2000004),
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@ CHECK: ('word-1', 0x8)),
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@ CHECK: # Relocation 1
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@ CHECK: (('word-0', 0xa1000000),
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@ CHECK: ('word-1', 0x0)),
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@ CHECK: # Relocation 2
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@ CHECK: (('word-0', 0x0),
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@ CHECK-FIXME: ('word-1', 0x6d000001)),
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@ CHECK: ])
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@ CHECK-FIXME: ('_section_data', 'fff7feef 04000000')
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@ CHECK: # Section 1
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@ CHECK: (('section_name', '__cstring\x00\x00\x00\x00\x00\x00\x00')
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@ CHECK: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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@ CHECK: ('address', 8)
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@ CHECK: ('size', 3)
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@ CHECK: ('offset', 332)
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@ CHECK: ('alignment', 2)
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@ CHECK: ('reloc_offset', 0)
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@ CHECK: ('num_reloc', 0)
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@ CHECK: ('flags', 0x2)
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@ CHECK: ('reserved1', 0)
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@ CHECK: ('reserved2', 0)
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@ CHECK: ),
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@ CHECK: ('_relocations', [
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@ CHECK: ])
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@ CHECK: ('_section_data', '733000')
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@ CHECK: ])
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@ CHECK: ),
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@ CHECK: # Load Command 1
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@ CHECK: (('command', 2)
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@ CHECK: ('size', 24)
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@ CHECK: ('symoff', 360)
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@ CHECK: ('nsyms', 2)
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@ CHECK: ('stroff', 384)
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@ CHECK: ('strsize', 16)
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@ CHECK: ('_string_data', '\x00_main\x00_printf\x00\x00')
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@ CHECK: ('_symbols', [
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@ CHECK: # Symbol 0
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@ CHECK: (('n_strx', 1)
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@ CHECK: ('n_type', 0xf)
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@ CHECK: ('n_sect', 1)
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@ CHECK-FIXME: ('n_desc', 8)
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@ CHECK: ('n_value', 0)
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@ CHECK: ('_string', '_main')
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@ CHECK: ),
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@ CHECK: # Symbol 1
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@ CHECK: (('n_strx', 7)
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@ CHECK: ('n_type', 0x1)
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@ CHECK: ('n_sect', 0)
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@ CHECK: ('n_desc', 0)
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@ CHECK: ('n_value', 0)
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@ CHECK: ('_string', '_printf')
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@ CHECK: ),
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@ CHECK: ])
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@ CHECK: ),
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@ CHECK: # Load Command 2
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@ CHECK: (('command', 11)
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@ CHECK: ('size', 80)
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@ CHECK: ('ilocalsym', 0)
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@ CHECK: ('nlocalsym', 0)
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@ CHECK: ('iextdefsym', 0)
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@ CHECK: ('nextdefsym', 1)
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@ CHECK: ('iundefsym', 1)
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@ CHECK: ('nundefsym', 1)
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@ CHECK: ('tocoff', 0)
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@ CHECK: ('ntoc', 0)
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@ CHECK: ('modtaboff', 0)
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@ CHECK: ('nmodtab', 0)
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@ CHECK: ('extrefsymoff', 0)
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@ CHECK: ('nextrefsyms', 0)
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@ CHECK: ('indirectsymoff', 0)
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@ CHECK: ('nindirectsyms', 0)
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@ CHECK: ('extreloff', 0)
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@ CHECK: ('nextrel', 0)
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@ CHECK: ('locreloff', 0)
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@ CHECK: ('nlocrel', 0)
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@ CHECK: ('_indirect_symbols', [
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@ CHECK: ])
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@ CHECK: ),
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@ CHECK: ])
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