mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-13 21:05:16 +00:00
602b40f0d0
- This is "extraordinarily" Darwin 'as' compatible. See the litany of FIXMEs littered about for more information. - There are a few cases which seem to clearly be 'as' bugs which I have left unsupported, and there is one cases where we diverge but should fix if it blocks diffing .o files (Darwin 'as' ends up widening a jump unnecessarily). - 403.gcc build, runs, and diffs equivalently to the 'as' built version now (using llvm-mc). However, it builds so slowly that I wouldn't recommend trying it quite yet. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98974 91177308-0d34-0410-b5e6-96231b3b80d8
330 lines
9.9 KiB
ArmAsm
330 lines
9.9 KiB
ArmAsm
// RUN: llvm-mc -triple x86_64-apple-darwin10 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s
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.text
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// FIXME: llvm-mc doesn't handle this in a way we can make compatible with 'as',
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// currently, because of how we handle assembler variables.
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//
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// See <rdar://problem/7763719> improve handling of absolute symbols
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// _baz = 4
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_foo:
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xorl %eax,%eax
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_g0:
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xorl %eax,%eax
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L0:
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jmp 4
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// jmp _baz
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// FIXME: Darwin 'as' for historical reasons widens this jump, but doesn't emit
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// a relocation. It seems like 'as' widens any jump that is not to a temporary,
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// which is inherited from the x86_32 behavior, even though x86_64 could do
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// better.
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// jmp _g0
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jmp L0
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jmp _g1
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// FIXME: Darwin 'as' gets this wrong as well, even though it could get it right
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// given the other things we do on x86_64. It is using a short jump here. This
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// is probably fallout of the hack that exists for x86_32.
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// jmp L1
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// FIXME: We don't support this, and would currently get it wrong, it should be a jump to an absolute address.
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// jmp L0 - _g0
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// jmp _g1 - _g0
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// FIXME: Darwin 'as' comes up with 'SIGNED' here instead of 'BRANCH'.
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// jmp _g1 - L1
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// FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
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// branch relocation. Fallout from the other delta hack?
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// jmp L1 - _g0
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jmp _g2
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jmp L2
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jmp _g3
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jmp L3
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// FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
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// branch relocation. Fallout from the other delta hack?
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// jmp L2 - _g3
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// jmp _g3 - _g2
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// FIXME: Darwin 'as' comes up with 'SIGNED' here instead of 'BRANCH'.
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// jmp _g3 - L3
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// FIXME: Darwin 'as' gets this completely wrong. It ends up with a single
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// branch relocation. Fallout from the other delta hack?
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// jmp L3 - _g2
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movl %eax,4(%rip)
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// movl %eax,_baz(%rip)
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movl %eax,_g0(%rip)
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movl %eax,L0(%rip)
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movl %eax,_g1(%rip)
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movl %eax,L1(%rip)
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// FIXME: Darwin 'as' gets most of these wrong, and there is an ambiguity in ATT
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// syntax in what they should mean in the first place (absolute or
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// rip-relative address).
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// movl %eax,L0 - _g0(%rip)
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// movl %eax,_g1 - _g0(%rip)
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// movl %eax,_g1 - L1(%rip)
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// movl %eax,L1 - _g0(%rip)
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movl %eax,_g2(%rip)
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movl %eax,L2(%rip)
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movl %eax,_g3(%rip)
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movl %eax,L3(%rip)
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// FIXME: Darwin 'as' gets most of these wrong, and there is an ambiguity in ATT
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// syntax in what they should mean in the first place (absolute or
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// rip-relative address).
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// movl %eax,L2 - _g2(%rip)
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// movl %eax,_g3 - _g2(%rip)
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// movl %eax,_g3 - L3(%rip)
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// movl %eax,L3 - _g2(%rip)
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_g1:
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xorl %eax,%eax
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L1:
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xorl %eax,%eax
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.data
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_g2:
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xorl %eax,%eax
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L2:
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.quad 4
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// .quad _baz
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.quad _g2
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.quad L2
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.quad _g3
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.quad L3
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.quad L2 - _g2
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.quad _g3 - _g2
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.quad L3 - _g2
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.quad L3 - _g3
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.quad _g0
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.quad L0
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.quad _g1
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.quad L1
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.quad L0 - _g0
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.quad _g1 - _g0
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.quad L1 - _g0
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.quad L1 - _g1
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_g3:
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xorl %eax,%eax
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L3:
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xorl %eax,%eax
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// CHECK: ('cputype', 16777223)
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// CHECK: ('cpusubtype', 3)
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// CHECK: ('filetype', 1)
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// CHECK: ('num_load_commands', 1)
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// CHECK: ('load_commands_size', 336)
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// CHECK: ('flag', 0)
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// CHECK: ('reserved', 0)
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// CHECK: ('load_commands', [
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// CHECK: # Load Command 0
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// CHECK: (('command', 25)
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// CHECK: ('size', 232)
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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', 236)
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// CHECK: ('file_offset', 368)
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// CHECK: ('file_size', 236)
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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', 94)
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// CHECK: ('offset', 368)
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// CHECK: ('alignment', 0)
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// CHECK: ('reloc_offset', 604)
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// CHECK: ('num_reloc', 12)
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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: ('reserved3', 0)
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// CHECK: ),
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// CHECK: ('_relocations', [
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// FIXME: Unfortunately, we do not get these relocations in exactly the same
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// order as Darwin 'as'. It turns out that 'as' *usually* ends up emitting
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// them in reverse address order, but sometimes it allocates some
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// additional relocations late so these end up preceed the other entries. I
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// haven't figured out the exact criteria for this yet.
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// CHECK: (('word-0', 0x56),
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// CHECK: ('word-1', 0x1d000004)),
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// CHECK: (('word-0', 0x50),
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// CHECK: ('word-1', 0x1d000004)),
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// CHECK: (('word-0', 0x4a),
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// CHECK: ('word-1', 0x1d000003)),
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// CHECK: (('word-0', 0x44),
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// CHECK: ('word-1', 0x1d000003)),
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// CHECK: (('word-0', 0x3e),
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// CHECK: ('word-1', 0x1d000002)),
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// CHECK: (('word-0', 0x38),
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// CHECK: ('word-1', 0x1d000002)),
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// CHECK: (('word-0', 0x20),
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// CHECK: ('word-1', 0x2d000004)),
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// CHECK: (('word-0', 0x1b),
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// CHECK: ('word-1', 0x2d000004)),
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// CHECK: (('word-0', 0x16),
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// CHECK: ('word-1', 0x2d000003)),
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// CHECK: (('word-0', 0x11),
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// CHECK: ('word-1', 0x2d000003)),
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// CHECK: (('word-0', 0xc),
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// CHECK: ('word-1', 0x2d000002)),
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// CHECK: (('word-0', 0x5),
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// CHECK: ('word-1', 0x2d000000)),
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// CHECK: ])
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// CHECK: # Section 1
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// CHECK: (('section_name', '__data\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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// CHECK: ('segment_name', '__DATA\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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// CHECK: ('address', 94)
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// CHECK: ('size', 142)
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// CHECK: ('offset', 462)
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// CHECK: ('alignment', 0)
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// CHECK: ('reloc_offset', 700)
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// CHECK: ('num_reloc', 16)
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// CHECK: ('flags', 0x400)
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// CHECK: ('reserved1', 0)
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// CHECK: ('reserved2', 0)
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// CHECK: ('reserved3', 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', 0x7a),
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// CHECK: ('word-1', 0x5e000001)),
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// CHECK: # Relocation 1
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// CHECK: (('word-0', 0x7a),
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// CHECK: ('word-1', 0xe000002)),
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// CHECK: # Relocation 2
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// CHECK: (('word-0', 0x72),
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// CHECK: ('word-1', 0x5e000001)),
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// CHECK: # Relocation 3
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// CHECK: (('word-0', 0x72),
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// CHECK: ('word-1', 0xe000002)),
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// CHECK: # Relocation 4
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// CHECK: (('word-0', 0x62),
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// CHECK: ('word-1', 0xe000002)),
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// CHECK: # Relocation 5
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// CHECK: (('word-0', 0x5a),
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// CHECK: ('word-1', 0xe000002)),
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// CHECK: # Relocation 6
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// CHECK: (('word-0', 0x52),
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// CHECK: ('word-1', 0xe000001)),
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// CHECK: # Relocation 7
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// CHECK: (('word-0', 0x4a),
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// CHECK: ('word-1', 0xe000001)),
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// CHECK: # Relocation 8
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// CHECK: (('word-0', 0x3a),
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// CHECK: ('word-1', 0x5e000003)),
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// CHECK: # Relocation 9
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// CHECK: (('word-0', 0x3a),
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// CHECK: ('word-1', 0xe000004)),
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// CHECK: # Relocation 10
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// CHECK: (('word-0', 0x32),
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// CHECK: ('word-1', 0x5e000003)),
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// CHECK: # Relocation 11
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// CHECK: (('word-0', 0x32),
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// CHECK: ('word-1', 0xe000004)),
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// CHECK: # Relocation 12
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// CHECK: (('word-0', 0x22),
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// CHECK: ('word-1', 0xe000004)),
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// CHECK: # Relocation 13
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// CHECK: (('word-0', 0x1a),
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// CHECK: ('word-1', 0xe000004)),
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// CHECK: # Relocation 14
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// CHECK: (('word-0', 0x12),
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// CHECK: ('word-1', 0xe000003)),
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// CHECK: # Relocation 15
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// CHECK: (('word-0', 0xa),
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// CHECK: ('word-1', 0xe000003)),
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// CHECK: ])
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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', 828)
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// CHECK: ('nsyms', 5)
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// CHECK: ('stroff', 908)
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// CHECK: ('strsize', 24)
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// CHECK: ('_string_data', '\x00_foo\x00_g0\x00_g1\x00_g2\x00_g3\x00\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', 0xe)
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// CHECK: ('n_sect', 1)
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// CHECK: ('n_desc', 0)
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// CHECK: ('n_value', 0)
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// CHECK: ('_string', '_foo')
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// CHECK: ),
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// CHECK: # Symbol 1
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// CHECK: (('n_strx', 6)
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// CHECK: ('n_type', 0xe)
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// CHECK: ('n_sect', 1)
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// CHECK: ('n_desc', 0)
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// CHECK: ('n_value', 2)
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// CHECK: ('_string', '_g0')
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// CHECK: ),
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// CHECK: # Symbol 2
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// CHECK: (('n_strx', 10)
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// CHECK: ('n_type', 0xe)
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// CHECK: ('n_sect', 1)
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// CHECK: ('n_desc', 0)
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// CHECK: ('n_value', 90)
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// CHECK: ('_string', '_g1')
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// CHECK: ),
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// CHECK: # Symbol 3
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// CHECK: (('n_strx', 14)
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// CHECK: ('n_type', 0xe)
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// CHECK: ('n_sect', 2)
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// CHECK: ('n_desc', 0)
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// CHECK: ('n_value', 94)
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// CHECK: ('_string', '_g2')
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// CHECK: ),
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// CHECK: # Symbol 4
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// CHECK: (('n_strx', 18)
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// CHECK: ('n_type', 0xe)
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// CHECK: ('n_sect', 2)
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// CHECK: ('n_desc', 0)
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// CHECK: ('n_value', 232)
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// CHECK: ('_string', '_g3')
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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', 5)
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// CHECK: ('iextdefsym', 5)
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// CHECK: ('nextdefsym', 0)
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// CHECK: ('iundefsym', 5)
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// CHECK: ('nundefsym', 0)
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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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