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597 Commits

Author SHA1 Message Date
Daniel Dunbar
b18d2dd115 MC/Mach-O: Fix some differences in symbol flag handling. 
- Don't clear weak reference flag, 'as' was only "trying" to do this, it wasn't
   actually succeeding.
 - Clear the "lazy bound" bit when we mark something external. This corresponds
   roughly to the lazy clearing of the bit that 'as' implements in
   symbol_table_lookup.
 - The exact meaning of these flags appears pretty loose, since 'as' isn't very
   consistent. For now we just try to match 'as', we will clean this up one day
   hopefully.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 20:12:31 +00:00
Daniel Dunbar
525a3a67c1 llvm-mc: Support reassignment of variables in one special case, when the 
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 17:46:23 +00:00
Eric Christopher
d04d98d24f Assume that we'll handle mangling the symbols earlier and just put the 
symbol to the file as we have it.  Simplifies out tbss handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 02:13:02 +00:00
Daniel Dunbar
f0f6cdb6b4 MC/Mach-O/x86_64: Darwin's special "signed_N" relocation types should only be 
used to replace a normal relocation, not a reference to a GOT entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 18:53:40 +00:00
Eric Christopher
482eba054a Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:50:28 +00:00
Eric Christopher
c260a3e59a Fix a couple of typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:38:54 +00:00
Daniel Dunbar
47b3ec4daa MC: Switch to completely lazy layout. 
- The eliminates the last major algorithmic problem with MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:51:14 +00:00
Daniel Dunbar
9005d45a99 MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:21 +00:00
Daniel Dunbar
11c4111516 MC: Implicitly assign section addresses when the previous fragment is layed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:17 +00:00
Daniel Dunbar
337718e09c MC: Switch MCFragment to storing the layout order index, not its index in the file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:14 +00:00
Daniel Dunbar
afc6acdab7 MC: Change LayoutSection() to only do the section initializiation. 
Also, elimminate MCAsmLayout::set*, which are no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:11 +00:00
Daniel Dunbar
b69fc044db MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:40:12 +00:00
Daniel Dunbar
2c18d3b0fe MC: Factor out MCAssembler::ComputeFragmentSize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103724 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 18:35:06 +00:00
Daniel Dunbar
f60c736c64 MC: Add section layout order indices to MCSectionData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 15:17:26 +00:00
Daniel Dunbar
49ed921190 MC: Move ordinal calculation, to make sure fragments synthesized for layout get assigned ordinals properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:37 +00:00
Daniel Dunbar
09d3465f0e MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:34 +00:00
Daniel Dunbar
aa0d350fe5 MC: Add MCAsmLayout::FragmentReplaced() helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:31 +00:00
Daniel Dunbar
054be92e1d Fix -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 03:50:50 +00:00
Daniel Dunbar
2661f11e46 MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by 
utility functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103695 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 03:19:50 +00:00
Daniel Dunbar
61066dbdf2 MC: Switch to using explicit MCAlignFragments with OnlyAlignAddress bit instead 
of manually doing padding/editing layout in LayoutSection().
    - This probably seems like six-of-one and half-dozen of another, but there
      is a method to my madness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 02:34:14 +00:00
Daniel Dunbar
456b501270 MC: Add MCAlignFragment::OnlyAlignAddress bit. This is a bit of magic that says the align fragment shouldn't contribute to the logical section size, it is will be used for cleaning up the code to handle section alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 01:10:26 +00:00
Daniel Dunbar
b5844ff1c4 MC: Add MCSectionData::AddressSize, which is the size of the address space consumed by the section. This can differ from both the section logical size, and the section size on disk (although the current code handles this without making an explicit distinction). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 01:10:22 +00:00
Chris Lattner
7bb7c55a61 fix rdar://7965971 and a fixme: use ParseIdentifier in 
ParseDirectiveDarwinZerofill instead of hard coding the
check for identifier. This allows quoted symbol names to
be used.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103682 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 00:10:34 +00:00
Daniel Dunbar
1c15413ebc MC: Move MCAlignFragment::EmitNops value out of the constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:56:23 +00:00
Daniel Dunbar
4e544870c4 MC: Eliminate MCZeroFillFragment, it is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:38 +00:00
Daniel Dunbar
e2fee5b236 MC: Explicitly check that only virtual fragments appear in virtual sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103663 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:35 +00:00
Daniel Dunbar
3153fec733 MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:32 +00:00
Daniel Dunbar
e73d49eda2 MC: Drop support for alignment in ZeroFill fragment, we can just use 
MCAlignFragments for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:27 +00:00
Daniel Dunbar
52f8dff671 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:47:55 +00:00
Daniel Dunbar
f0d17d2461 MC: Factor out MCAssembler::LayoutFragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:35:25 +00:00
Daniel Dunbar
2d891a20e6 MC: Tweak section layout to not relying on accumulating address value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:35:22 +00:00
Daniel Dunbar
d13a0caf72 MC: Simplify LayoutSection to just take the index of the section to layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 17:56:47 +00:00
Daniel Dunbar
bc1a0cf139 MC: Track section layout order explicitly, and use to simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 15:42:59 +00:00
Nathan Jeffords
62d50e89e4 stylistic change to MCSectionCOFF::PrintSwitchToSection COMDAT handling 
Made a stylistic changed to the code/comments related to the unsupported COMDAT selection  type IMAGE_COMDAT_SELECT_LARGEST based on from Anton Korobeynikov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 07:36:03 +00:00
Rafael Espindola
18c1021ec1 Add support for movi32 of global values to the new (MC) asm printer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 05:16:34 +00:00
Nathan Jeffords
871bb94c43 updated support for the COFF .linkonce 
Now, the .linkonce directive is emitted as part of MCSectionCOFF::PrintSwitchToSection instead of AsmPrinter::EmitLinkage since it is an attribute of the section the symbol was placed into not the symbol itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103568 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 04:26:09 +00:00
Daniel Dunbar
a5f1d57f65 MC/Mach-O/x86_64: Add a new hook for checking whether a particular section can 
be diced into atoms, and adjust getAtom() to take this into account.
 - This fixes relocations to symbols in fixed size literal sections, for
   example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103532 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:38:17 +00:00
Daniel Dunbar
db4c7e606f MC/Mach-O/x86_64: Fix PCrel adjustment for x86_64, which was using the fixup 
offset instead of the fixup address as intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:11 +00:00
Daniel Dunbar
640e948f09 MC/Mach-O: As Kevin pointed out, 'Address' is really an offset -- rename to clarify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:07 +00:00
Daniel Dunbar
ef4591ef79 MC/Mach-O: Fix a crash on invalid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:05 +00:00
Daniel Dunbar
651804c3d6 MC/Mach-O x86_64: Switch to using fragment atom symbol. 
- This eliminates getAtomForAddress() (which was a linear search) and
   simplifies getAtom().
 - This also fixes some correctness problems where local labels at the same
   address as non-local labels could be assigned to the wrong atom.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 17:22:50 +00:00
Daniel Dunbar
a8251fac10 MC/Mach-O: Fix another mismatch with .weak_definition, we shouldn't use a 
scattered relocation entry with a .weak_definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-10 23:15:20 +00:00
Daniel Dunbar
e9460ec057 MC/Mach-O: Factor out doesSymbolRequireExternRelocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103442 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-10 23:15:13 +00:00
Daniel Dunbar
071f73db4a MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-10 22:45:09 +00:00
Nathan Jeffords
72e57f9441 test commit, added a comment to MCSectionCOFF::PrintSwitchToSection function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-09 05:49:00 +00:00
Chris Lattner
b54b9ddaaf break coff symbol definition stuff out into proper MCStreamer callbacks, 
patch by Nathan Jeffords!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103346 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-08 19:54:22 +00:00
Chris Lattner
6e5ce287b0 add COFF support for COMDAT sections, patch by Nathan Jeffords! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 21:49:09 +00:00
Kevin Enderby
a6eeb6e226 Fix i386 relocations to Weak Definitions. The relocation entries should be 
external and the item to be relocated should not have the address of the
symbol added in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 21:44:23 +00:00
Ted Kremenek
d51409ae9e Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103269 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 17:29:48 +00:00
Chris Lattner
eb40a0fd98 switch MCSectionCOFF from a syntactic to semantic representation, 
patch by Peter Housel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103267 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 17:17:41 +00:00