Daniel Dunbar
07a9641ebf
MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 02:10:29 +00:00
Daniel Dunbar
a015c1c876
MC/Mach-O: Use the SECTDIFF relocation type for (A - B + constant) where A is external.
...
- I'm not sure why, but this is what 'as' does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98115 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 00:58:25 +00:00
Daniel Dunbar
f3a066f7c3
MC/Mach-O: For PCrel relocations, we need to compensate for the PCrel adjustment when determining if we need a scattered relocation.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 21:27:58 +00:00
Daniel Dunbar
aef9d7af69
MC/Mach-O: Also set the PCrel bit in the second half of paired relocation entries.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98081 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 21:27:47 +00:00
Daniel Dunbar
e180fa962c
MC/Mach-O: Don't generate relocations for PCrel fixups to local labels.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98080 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 21:27:30 +00:00
Daniel Dunbar
45aefff64c
MC/Mach-O: Tweak .dump() formatting.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 01:12:23 +00:00
Daniel Dunbar
f8b8ad77a8
MC/Mach-O: Don't adjust section sizes when aligning zero fill sections, just pad the address.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 01:12:20 +00:00
Daniel Dunbar
b2b4acd757
MC/Macho-O: Align the zerofill section itself to the maximum alignment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97991 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 22:03:42 +00:00
Daniel Dunbar
37fad5ce4d
MC/Mach-O: Fix address compution for zero fill sections.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:10:42 +00:00
Daniel Dunbar
0ce6bd55c3
MC/Mach-O: Error out instead of crashing on invalid scattered relocation expressions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97983 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:10:39 +00:00
Kevin Enderby
76687083a5
This is the second patch to allow x86 code to be aligned with optimal nops.
...
With the compiler changed to use EmitCodeAlignment() it does change the
functionality. But X86 assembly code assembled with llvm-mc does not change
its output. For that we will eventually change the assembler frontend to
detect a '.align x, 0x90' when used in a section that 'hasInstructions' and use
EmitCodeAlignment, but will wait until we have better target hooks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 21:41:24 +00:00
Kevin Enderby
6e72048add
This is the first patch to put the needed bits in place to eventually allow code
...
to be aligned with optimal nops. This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output. Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output. There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 18:26:34 +00:00
Daniel Dunbar
eb3804e39a
MC/Mach-O: Update fixup values for change to X86 offsets.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96532 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17 23:45:16 +00:00
Duncan Sands
9a7795cbed
Pacify gcc-4.5, which warns (correctly) that these switches have
...
cases that are not part of the enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17 14:52:22 +00:00
Daniel Dunbar
591047f714
MCAssembler: Fix pcrel relocations. Oh and,
...
--
ddunbar@ozzy:tmp$ clang -m32 -integrated-as hello.c && ./a.out
hello world!
--
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96096 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:45:59 +00:00
Daniel Dunbar
f6346769b3
MC/Mach-O: Start emitting fixups/relocations for instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96095 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:29:02 +00:00
Daniel Dunbar
2be2fd0730
MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:28:54 +00:00
Daniel Dunbar
0bcf074867
MCAssembler: Sink fixup list into MCDataFragment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:28:43 +00:00
Daniel Dunbar
a4766d7af9
MCAssembler: Switch MCFillFragment to only taking constant values. Symbolic expressions can always be emitted as data + fixups.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:28:32 +00:00
Daniel Dunbar
3a30b827a5
MCAssembler: Start applying fixups in the data section.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:28:15 +00:00
Daniel Dunbar
b7c3a4b195
MCAssembler: Add assorted dump() methods.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 09:28:03 +00:00
Daniel Dunbar
cb7d743b42
MC: Move assembler-backend's fixup list into the fragment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95926 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11 21:29:46 +00:00
Daniel Dunbar
27ade18431
MC: Move MCSectionData::Fixup out to MCAsmFixup.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11 21:29:29 +00:00
Daniel Dunbar
6b71653c82
llvm-mc: Add --show-fixups option, for displaying the instruction fixup information in the asm comments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 23:00:14 +00:00
Daniel Dunbar
e1ec617c6a
MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 21:44:01 +00:00
Chris Lattner
45f8c095ad
Add a new top-level MachO.h file for manifest constants, fixing
...
a layering violation from MC -> Target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95113 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 19:38:14 +00:00
Nate Begeman
60a17740b8
Remove this fixme, looking at the linker source, all targets pad to 4 bytes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93835 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19 01:32:44 +00:00
Daniel Dunbar
2928c83b01
Pass StringRef by value.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06 10:58:06 +00:00
Daniel Dunbar
7eb85194f2
Minor formatting tweaks.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16 01:58:15 +00:00
Daniel Dunbar
1253a6fa3b
MC: Switch assembler API to using MCExpr instead of MCValue.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84234 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16 01:58:03 +00:00
Daniel Dunbar
efbb5330b8
llvm-mc: Store MCSymbolData value as a pointer (to make MSVC happy).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 04:09:03 +00:00
Daniel Dunbar
cb579b3338
llvm-mc: Make MCSymbolData symbol member const.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 08:08:06 +00:00
Daniel Dunbar
a03a368acc
llvm-mc: Add MCContext to MCAssembler.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 08:07:55 +00:00
Daniel Dunbar
8f4d146c34
llvm-mc: Support .comm emission.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80351 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 07:08:35 +00:00
Daniel Dunbar
d5a8e98ef6
llvm-mc: Support .zerofill emission.
...
- I'm still trying to figure out the cleanest way to implement this and match the assembler, currently there are some substantial differences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 05:49:21 +00:00
Daniel Dunbar
edc670f3f2
llvm-mc: Tweak section alignment and size computation to match 'as' closer.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80345 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 05:49:04 +00:00
Daniel Dunbar
6c31b0575c
llvm-mc: Fix thinko in emitting values.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 05:48:10 +00:00
Daniel Dunbar
81e400092f
Try to make MSVC just a little happier.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80187 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 00:38:04 +00:00
Daniel Dunbar
959fd88334
llvm-mc/Mach-O: Don't put assembler temporary labels in the symbol table.
...
- I moved section creation back into AsmParser. I think policy decisions like
this should be pushed higher, not lower, when possible (in addition the
assembler has flags which change this behavior, for example).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80162 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 22:13:22 +00:00
Daniel Dunbar
6009db486e
llvm-mc/Mach-O: Set .subsections_via_symbols flag properly.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80144 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 21:22:22 +00:00
Daniel Dunbar
3f6a960f9c
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
2009-08-26 13:58:10 +00:00
Daniel Dunbar
be96355694
llvm-mc/Mach-O: Move symbol indices into the MCSymbolData structure.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80088 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 13:57:54 +00:00
Daniel Dunbar
6742e34385
llvm-mc/Mach-O: Add section padding where needed (to align the next section).
...
Also, simplify some of Mach-O writer code which can now use section addresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80067 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 04:13:32 +00:00
Daniel Dunbar
5e835967dd
llvm-mc/Mach-O: Set addresses for symbols.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 02:48:04 +00:00
Daniel Dunbar
ad7c3d5593
llvm-mc: Improve indirect symbol support (add the indirect index table).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 00:18:21 +00:00
Daniel Dunbar
0adcd35f78
llvm-mc: Add statistic for number of fragments emitted by the assembler.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80033 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 21:10:45 +00:00
Daniel Dunbar
0c7761b3f9
llvm-mc/Mach-O: Preliminary support for indirect symbols.
...
- The indirect table itself isn't being filled in yet.
- This isn't factored properly and is rather FIXMEd, but at the moment I'm more
focused on figuring out what it needs to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79910 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 11:56:58 +00:00
Daniel Dunbar
6aff2fbd56
llvm-mc/Mach-O: Support symbol attributes.
...
- This is mostly complete, the main thing missing is .indirect_symbol support
(which would be straight-forward, except that the way it is implemented in
'as' makes getting an exact .o match interesting).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 08:40:12 +00:00
Daniel Dunbar
50e48b359e
llvm-mc: Tweak undefined symbol handling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79898 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 08:39:57 +00:00
Chris Lattner
23132b188b
prune the #includes in raw_ostream.h by moving a
...
member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 03:52:50 +00:00