Commit Graph

23 Commits

Author SHA1 Message Date
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
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
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
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
3edd9bb7a3 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
2009-08-22 11:41:10 +00:00
Daniel Dunbar
f3d2ef0c97 llvm-mc/Mach-O: Sketch symbol table support.
- The only .s syntax this honors right now is emitting labels, and some parts
   of the symbol table generation are wrong or faked.

 - This is enough to get nm to report such symbols... incorrectly, but still.

Also, fixed byte emission to extend the previous fragment if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 10:13:24 +00:00
Daniel Dunbar
2ae58f2851 llvm-mc/Mach-O: Move more logic for writing the Mach-O file into the writer
class, and kill off MCSectionData::FileOffset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 08:28:27 +00:00
Daniel Dunbar
a5441fea1f llvm-mc: Rename / redefine MCFragment::FileOffset to MCFragment::Offset (the
section offset).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79734 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 08:27:54 +00:00
Daniel Dunbar
361ae1d28d Make MSVC happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 23:11:36 +00:00
Daniel Dunbar
d6f761e0eb llvm-mc/Mach-O: Support .o emission for .org and .align.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 23:07:38 +00:00
Daniel Dunbar
0705fbf52f llvm-mc/Mach-O: Support byte and fill value emission.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 18:29:01 +00:00
Benjamin Kramer
1f2b32c5c6 Fix build on platforms where stdint.h is not implicitly included in the standard headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79629 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 13:59:49 +00:00
Daniel Dunbar
fb4a6b3976 llvm-mc: Start MCAssembler and MCMachOStreamer.
- Together these form the (Mach-O) back end of the assembler.

 - MCAssembler is the actual assembler backend, which is designed to have a
   reasonable API. This will eventually grow to support multiple object file
   implementations, but for now its Mach-O/i386 only.

 - MCMachOStreamer adapts the MCStreamer "actions" API to the MCAssembler API,
   e.g. converting the various directives into fragments, managing state like
   the current section, and so on.

 - llvm-mc will use the new backend via '-filetype=obj', which may eventually
   be, but is not yet, since I hear that people like assemblers which actually
   assemble.

 - The only thing that works at the moment is changing sections. For the time
   being I have a Python Mach-O dumping tool in test/scripts so this stuff can
   be easily tested, eventually I expect to replace this with a real LLVM tool.

 - More doxyments to come.

I assume that since this stuff doesn't touch any of the things which are part of
2.6 that it is ok to put this in not so long before the freeze, but if someone
objects let me know, I can pull it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79612 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 09:11:24 +00:00