Commit Graph

110 Commits

Author SHA1 Message Date
Daniel Dunbar
7008087b8c Update CMake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80195 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 02:08:37 +00:00
Daniel Dunbar
04baf9094a llvm-mc: Tweak MCCodeEmitter skeleton.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 01:34:22 +00:00
Daniel Dunbar
4a0abd80f1 Sketch TargetRegistry support for MCCodeEmitter abstract interface.
- Of course, nothing actually can provide this interface yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80188 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 00:51:57 +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
a421de11df llvm-mc: Add symbol entries for undefined symbols used in .fill and .org.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80086 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 13:57:37 +00:00
Daniel Dunbar
383cbff031 llvm-mc: Change MCContext value table to take const MCSymbol*s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80079 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 09:16:57 +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
Bill Wendling
415c8cf837 Revert last patch. We need to put this into TargetLowering. There will be a lot
of EH stuff going into there, so we can wait to add them all then.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80036 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 21:31:39 +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
Bill Wendling
533534a295 Add the #include here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80032 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 21:09:50 +00:00
Bill Wendling
b9e7689c89 Add a target asm info hook to specify that particular bits of data in the FDE
should be forced to 32-bits (.long) even on 64-bit architectures. Darwin wants
these bits to be 64-bits (.quad). However, other platforms may disagree.

This is just the info right now and is part of a work-in-progress which needs
this. We'll add the actual *use* of this soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 20:21:17 +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
Benjamin Kramer
ecf046b86d Update CMake build, unbreak linux build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79779 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 22:07:08 +00:00
Chris Lattner
33adcfb4d2 rename TAI -> MAI, being careful not to make MAILJMP instructions :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79777 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 21:43:10 +00:00
Chris Lattner
2807afa664 rename COFFMCAsmInfo -> MCAsmInfoCOFF, likewise for darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79773 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 21:03:30 +00:00
Chris Lattner
82d748d55c move the MCAsmInfo .cpp/.h files into the right
directories and rename them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 20:58:17 +00:00
Chris Lattner
af76e592c7 Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79763 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 20:48:53 +00:00
Chris Lattner
cda7f78233 prune some redundant #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 19:35:08 +00:00
Chris Lattner
bea2c95704 tweak #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79744 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 19:19:12 +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
8906ff1b9d llvm-mc: Clean up some handling of symbol/section association to be more correct
(external was really undefined and there wasn't an explicit representation for
absolute symbols).
 - This still needs some cleanup to how the absolute "pseudo" section is dealt
   with, but I haven't figured out the nicest approach yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 07:22:36 +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
71b9732ef6 Update CMakeLists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79617 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21 11:28:56 +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
Chris Lattner
6e579c6727 fix asmstreaming of 2/4 byte elements with pow-2 alignments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 06:35:36 +00:00
Chris Lattner
663c2d2580 switch asmprinter to emit alignments through OutStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 06:12:02 +00:00
Chris Lattner
6c2f9e14fd eliminate AsmPrinter::SwitchToSection and just have clients
talk to the MCStreamer directly instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 05:49:37 +00:00
Chris Lattner
4d35fce60c null streamer needs to maintain the current section as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 16:46:29 +00:00
Chris Lattner
dabf07c70a Make AsmStreamer maintain a notion of the current section, pushing it up from the
MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79324 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 06:15:16 +00:00
Chris Lattner
975780bb59 change AsmPrinter to switch sections using AsmStreamer instead of
doing it directly.  This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17 05:49:08 +00:00
Chris Lattner
f3ce009fcb give MCAsmStreamer a TargetAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79222 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17 04:23:44 +00:00
Chris Lattner
46a947d8c1 formatting cleanups, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79221 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17 04:17:34 +00:00
Chris Lattner
7d996d907f add support for target-specific ELF section flags, add a new MCSectionXCore
class which represents the XCore cp/dp section flags.  No functionality
change yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15 05:56:11 +00:00
Daniel Dunbar
e44313e0ca llvm-mc: Fix bugs where bytes were unintentionally being printed as signed.
- We now print all of 403.gcc cleanly (llvm-mc -> 'as' as diffed to 'as'), minus two 
   'rep;movsl' instructions (which I missed before).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14 19:59:24 +00:00
Bruno Cardoso Lopes
abd7514a68 *try* to use a better name to describe how common symbols are marked on the elf object file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14 19:45:38 +00:00
Daniel Dunbar
b2d0b6b8c7 llvm-mc: When handling a .set, make sure to print subsequent references to the
symbol as the symbol name itself, not the expression it was defined to. These
have different semantics due to the quirky .set behavior (which absolutizes an
expression that would otherwise be treated as a relocation).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79025 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14 19:10:46 +00:00
Daniel Dunbar
12de0df59f llvm-mc: zerofill shouldn't print quotes around the section,segment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14 18:51:45 +00:00