feedc90c57
Implement EmitTBSSSymbol for MachOStreamer.
...
Fixes build failure as well.
llvm-svn: 104059
2010-05-18 21:26:41 +00:00
5c87be766d
Make EmitTBSSSymbol take a section argument so that we can find it later.
...
Fix up callers and users.
llvm-svn: 104057
2010-05-18 21:16:04 +00:00
7bcc9e9450
Incorporate Daniel's suggestion and use !isdigit(CurPtr[0]) and not
...
CurPtr[0] == '\n' when testing the character after a "0b" when looking
to see if it part of a something like "jmp 0b".
llvm-svn: 104039
2010-05-18 18:09:20 +00:00
53e0631516
Fixed the problem with a branch to "0b" that was not parsed by llvm-mc
...
correctly. The Lexer was incorrectly eating the newline casusing it to branch
to address 0. Updated the test case to use a "0:" label and a branch to "0b".
llvm-svn: 104038
2010-05-18 17:51:35 +00:00
d5563f420a
MC/Mach-O: Implement support for setting indirect symbol table offset in section header.
...
Also, create symbol data for LHS of assignment, to match 'as' symbol ordering better.
llvm-svn: 104033
2010-05-18 17:28:24 +00:00
f16c12d7a1
MC/Mach-O: Remove some FIXMEs.
...
llvm-svn: 104032
2010-05-18 17:28:20 +00:00
39617bb08a
MC/Mach-O: Fail faster/harder when we see .file, which isn't yet supported.
...
llvm-svn: 104031
2010-05-18 17:28:17 +00:00
ab7be75e3f
Simplify MCContext::(Next|Get)Instance
...
- Allocate MCLabels in the context so they don't leak.
- Avoid duplicated densemap lookup.
llvm-svn: 104020
2010-05-18 12:15:34 +00:00
0510b48fd9
Added support in MC for Directional Local Labels.
...
llvm-svn: 103989
2010-05-17 23:08:19 +00:00
9635b3da6b
More data/parsing support for tls directives. Add a few more testcases
...
and cleanup comments as well.
llvm-svn: 103985
2010-05-17 22:53:55 +00:00
bb166bed40
MC/Mach-O/x86: Optimal nop sequences should only be used for the .text sections, not all sections in the text segment.
...
llvm-svn: 103981
2010-05-17 21:54:30 +00:00
ce5e1bb326
MC: Add dyn_cast support to MCSection.
...
- Of questionable utility, since in general anything which wants to do this should probably be within a target specific hook, which can rely on the sections being of the appropriate type. However, it can be useful for short term hacks.
llvm-svn: 103980
2010-05-17 21:54:26 +00:00
b7b796cc11
MC/Mach-O: Reverse order of SymbolData scanning when emitting instructions.
...
- This fixes a string table mismatch with 'as' when two new symbols are defined
in a single instruction.
llvm-svn: 103979
2010-05-17 21:19:59 +00:00
bf79238599
Add some section and constant support for darwin TLS.
...
llvm-svn: 103974
2010-05-17 21:02:07 +00:00
0211a96989
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.
llvm-svn: 103964
2010-05-17 20:12:31 +00:00
9b4a824217
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.
llvm-svn: 103950
2010-05-17 17:46:23 +00:00
68b1bbe66a
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.
llvm-svn: 103928
2010-05-17 02:13:02 +00:00
2493ddfe42
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.
llvm-svn: 103789
2010-05-14 18:53:40 +00:00
9fb6bb07ca
Add AsmParser support for darwin tbss directive.
...
Nothing uses this yet.
llvm-svn: 103757
2010-05-14 01:50:28 +00:00
bc81885ff7
Fix a couple of typos.
...
llvm-svn: 103756
2010-05-14 01:38:54 +00:00
4bce748aa2
MC: Switch to completely lazy layout.
...
- The eliminates the last major algorithmic problem with MC.
llvm-svn: 103754
2010-05-14 00:51:14 +00:00
9abade1017
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.
...
llvm-svn: 103753
2010-05-14 00:37:21 +00:00
3eedc26e18
MC: Implicitly assign section addresses when the previous fragment is layed out.
...
llvm-svn: 103752
2010-05-14 00:37:17 +00:00
8f9d2266e6
MC: Switch MCFragment to storing the layout order index, not its index in the file.
...
llvm-svn: 103751
2010-05-14 00:37:14 +00:00
a99a23b061
MC: Change LayoutSection() to only do the section initializiation.
...
Also, elimminate MCAsmLayout::set*, which are no longer needed.
llvm-svn: 103750
2010-05-14 00:37:11 +00:00
b9f6ac094a
MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().
...
llvm-svn: 103738
2010-05-13 20:40:12 +00:00
454ea716a3
MC: Factor out MCAssembler::ComputeFragmentSize.
...
llvm-svn: 103724
2010-05-13 18:35:06 +00:00
484c6fc825
MC: Add section layout order indices to MCSectionData.
...
llvm-svn: 103715
2010-05-13 15:17:26 +00:00
aa8bd69886
MC: Move ordinal calculation, to make sure fragments synthesized for layout get assigned ordinals properly.
...
llvm-svn: 103711
2010-05-13 08:43:37 +00:00
e73353c720
MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout.
...
llvm-svn: 103710
2010-05-13 08:43:34 +00:00
e8845ef4db
MC: Add MCAsmLayout::FragmentReplaced() helper function.
...
llvm-svn: 103709
2010-05-13 08:43:31 +00:00
5a93253fc8
Fix -Asserts warning.
...
llvm-svn: 103697
2010-05-13 03:50:50 +00:00
d83889bd87
MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by
...
utility functions.
llvm-svn: 103695
2010-05-13 03:19:50 +00:00
c7c53ea715
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.
llvm-svn: 103693
2010-05-13 02:34:14 +00:00
a6780da661
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.
...
llvm-svn: 103690
2010-05-13 01:10:26 +00:00
4dac59dcb7
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).
...
llvm-svn: 103689
2010-05-13 01:10:22 +00:00
8cb4728a15
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.
llvm-svn: 103682
2010-05-13 00:10:34 +00:00
b76df22a2e
MC: Move MCAlignFragment::EmitNops value out of the constructor.
...
llvm-svn: 103665
2010-05-12 22:56:23 +00:00
4405ffc688
MC: Eliminate MCZeroFillFragment, it is no longer needed.
...
llvm-svn: 103664
2010-05-12 22:51:38 +00:00
7cd309f7dc
MC: Explicitly check that only virtual fragments appear in virtual sections.
...
llvm-svn: 103663
2010-05-12 22:51:35 +00:00
597eb48168
MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill.
...
llvm-svn: 103662
2010-05-12 22:51:32 +00:00
51402b79e4
MC: Drop support for alignment in ZeroFill fragment, we can just use
...
MCAlignFragments for this.
llvm-svn: 103661
2010-05-12 22:51:27 +00:00
7d73564b82
Simplify.
...
llvm-svn: 103651
2010-05-12 21:47:55 +00:00
a7cc32a7b6
MC: Factor out MCAssembler::LayoutFragment
...
llvm-svn: 103649
2010-05-12 21:35:25 +00:00
2abec791f1
MC: Tweak section layout to not relying on accumulating address value.
...
llvm-svn: 103648
2010-05-12 21:35:22 +00:00
a11479eb49
MC: Simplify LayoutSection to just take the index of the section to layout.
...
llvm-svn: 103627
2010-05-12 17:56:47 +00:00
e02c1f6834
MC: Track section layout order explicitly, and use to simplify.
...
llvm-svn: 103616
2010-05-12 15:42:59 +00:00
d2de49ddda
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.
llvm-svn: 103590
2010-05-12 07:36:03 +00:00
b69c7b76f1
Add support for movi32 of global values to the new (MC) asm printer.
...
llvm-svn: 103576
2010-05-12 05:16:34 +00:00
76a07580ad
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.
llvm-svn: 103568
2010-05-12 04:26:09 +00:00
Eric Christopher