Eric Christopher
0df4e8b6a5
Fix comment and whitespace.
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llvm-svn: 104392
2010-05-21 22:39:11 +00:00
Nathan Jeffords
28b485543b
added an assertion to MCObjectWriter::WriteBytes to catch misuse of the ZeroFillSize parameter
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If the size of the string is greater than the zero fill size, the function will attempt to write a very large string of zeros to the object file (~4GB on 32 bit platforms). This assertion will catch the scenario and crash the program before the write occurs.
llvm-svn: 104334
2010-05-21 18:23:56 +00:00
Matt Fleming
0ca99c0262
Add support for parsing the ELF .type assembler directive.
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llvm-svn: 104316
2010-05-21 11:36:59 +00:00
Eric Christopher
09658d704d
Fix build by actually declaring the variable.
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llvm-svn: 104201
2010-05-20 00:59:30 +00:00
Eric Christopher
1a7bc06b28
Partial code for emitting thread local bss data.
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llvm-svn: 104197
2010-05-20 00:49:07 +00:00
Eric Christopher
4a9013f115
Make EmitTBSSSymbol take a section argument so that we can find it later.
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Fix up callers and users.
llvm-svn: 104057
2010-05-18 21:16:04 +00:00
Kevin Enderby
14c986967b
Added support in MC for Directional Local Labels.
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llvm-svn: 103989
2010-05-17 23:08:19 +00:00
Eric Christopher
6ea9cf8425
More data/parsing support for tls directives. Add a few more testcases
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and cleanup comments as well.
llvm-svn: 103985
2010-05-17 22:53:55 +00:00
Daniel Dunbar
7e141838cd
MC: Add dyn_cast support to MCSection.
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- 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
Eric Christopher
380e16a725
Add some section and constant support for darwin TLS.
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llvm-svn: 103974
2010-05-17 21:02:07 +00:00
Daniel Dunbar
8f5da3624f
llvm-mc: Support reassignment of variables in one special case, when the
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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
Eric Christopher
ebea91f168
Add AsmParser support for darwin tbss directive.
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Nothing uses this yet.
llvm-svn: 103757
2010-05-14 01:50:28 +00:00
Nick Lewycky
aeb998db39
Fix typo.
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llvm-svn: 103755
2010-05-14 01:02:48 +00:00
Daniel Dunbar
7fee3c7b28
MC: Switch to completely lazy layout.
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- The eliminates the last major algorithmic problem with MC.
llvm-svn: 103754
2010-05-14 00:51:14 +00:00
Daniel Dunbar
66c2ccec2d
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.
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llvm-svn: 103753
2010-05-14 00:37:21 +00:00
Daniel Dunbar
11467b2eaa
MC: Switch MCFragment to storing the layout order index, not its index in the file.
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llvm-svn: 103751
2010-05-14 00:37:14 +00:00
Daniel Dunbar
b2a98e0a16
MC: Change LayoutSection() to only do the section initializiation.
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Also, elimminate MCAsmLayout::set*, which are no longer needed.
llvm-svn: 103750
2010-05-14 00:37:11 +00:00
Daniel Dunbar
86825a9719
MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().
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llvm-svn: 103738
2010-05-13 20:40:12 +00:00
Daniel Dunbar
b142c00db4
MC: Factor out MCAssembler::ComputeFragmentSize.
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llvm-svn: 103724
2010-05-13 18:35:06 +00:00
Daniel Dunbar
5a601f9e09
MC: Add section layout order indices to MCSectionData.
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llvm-svn: 103715
2010-05-13 15:17:26 +00:00
Daniel Dunbar
5ef1bcbb97
MC: Add MCAsmLayout::FragmentReplaced() helper function.
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llvm-svn: 103709
2010-05-13 08:43:31 +00:00
Daniel Dunbar
561f55c1af
MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by
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utility functions.
llvm-svn: 103695
2010-05-13 03:19:50 +00:00
Daniel Dunbar
3fc379596a
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.
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llvm-svn: 103690
2010-05-13 01:10:26 +00:00
Daniel Dunbar
ec3a2ac5ed
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).
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llvm-svn: 103689
2010-05-13 01:10:22 +00:00
Daniel Dunbar
de7caed021
MC: Move MCAlignFragment::EmitNops value out of the constructor.
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llvm-svn: 103665
2010-05-12 22:56:23 +00:00
Daniel Dunbar
cf11e2a0a5
MC: Eliminate MCZeroFillFragment, it is no longer needed.
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llvm-svn: 103664
2010-05-12 22:51:38 +00:00
Daniel Dunbar
08bcc3a6fc
MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill.
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llvm-svn: 103662
2010-05-12 22:51:32 +00:00
Daniel Dunbar
d3f60794d8
MC: Drop support for alignment in ZeroFill fragment, we can just use
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MCAlignFragments for this.
llvm-svn: 103661
2010-05-12 22:51:27 +00:00
Daniel Dunbar
6a495507e5
MC: Factor out MCAssembler::LayoutFragment
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llvm-svn: 103649
2010-05-12 21:35:25 +00:00
Daniel Dunbar
7b72c3c7a0
MC: Simplify LayoutSection to just take the index of the section to layout.
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llvm-svn: 103627
2010-05-12 17:56:47 +00:00
Daniel Dunbar
adca38558e
MC: Track section layout order explicitly, and use to simplify.
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llvm-svn: 103616
2010-05-12 15:42:59 +00:00
Rafael Espindola
3efc86abab
Add support for movi32 of global values to the new (MC) asm printer.
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llvm-svn: 103576
2010-05-12 05:16:34 +00:00
Nathan Jeffords
2c2c69c075
Added a trivial function to modify the flags field of MCSymbolData class. The function takes the value and a mask, and clears the mask bits before applying the value.
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llvm-svn: 103534
2010-05-12 00:52:54 +00:00
Daniel Dunbar
7670f69e42
MC/Mach-O x86_64: Switch to using fragment atom symbol.
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- 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.
llvm-svn: 103480
2010-05-11 17:22:50 +00:00
Daniel Dunbar
00ffbb63da
MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used).
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llvm-svn: 103438
2010-05-10 22:45:09 +00:00
Chris Lattner
568058ef71
break coff symbol definition stuff out into proper MCStreamer callbacks,
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patch by Nathan Jeffords!
llvm-svn: 103346
2010-05-08 19:54:22 +00:00
Chris Lattner
e72e3e9c12
add COFF support for COMDAT sections, patch by Nathan Jeffords!
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llvm-svn: 103304
2010-05-07 21:49:09 +00:00
Kevin Enderby
3807a4746a
Fix i386 relocations to Weak Definitions. The relocation entries should be
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external and the item to be relocated should not have the address of the
symbol added in.
llvm-svn: 103302
2010-05-07 21:44:23 +00:00
Chris Lattner
c1d0e3a79e
switch MCSectionCOFF from a syntactic to semantic representation,
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patch by Peter Housel!
llvm-svn: 103267
2010-05-07 17:17:41 +00:00
Daniel Dunbar
258ede3795
MC: Make setVariableValue check the redefinition condition a bit more strongly.
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llvm-svn: 103110
2010-05-05 19:00:56 +00:00
Daniel Dunbar
d2ac9dc48b
MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue.
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llvm-svn: 103095
2010-05-05 17:41:00 +00:00
Daniel Dunbar
f5dc70a7d1
MC/Mach-O/x86_64: Relocations in debug sections should use local relocations
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when possible.
- <rdar://problem/7934873>
llvm-svn: 103092
2010-05-05 17:22:39 +00:00
Mon P Wang
bfebbd889a
Add support for assemblers that don't support periods in a name
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llvm-svn: 102594
2010-04-29 04:00:56 +00:00
Dan Gohman
26719acdb7
Add a const.
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llvm-svn: 101777
2010-04-19 15:39:27 +00:00
Chris Lattner
65d1e40895
teach the x86 asm parser how to handle segment prefixes
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in memory operands. rdar://7874844
llvm-svn: 101661
2010-04-17 18:56:34 +00:00
Chris Lattner
a5798151a3
refactor .if handling code a bit.
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llvm-svn: 101659
2010-04-17 18:14:27 +00:00
Chris Lattner
124dc743bc
implement mc asmparser support for '.', which gets the
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current PC. rdar://7834775
We now produce an identical .o file compared to the cctools
assembler for something like this:
_f0:
L0:
jmp L1
.long . - L0
L1:
jmp A
.long . - L1
.zerofill __DATA,_bss,A,0
llvm-svn: 101227
2010-04-14 04:40:28 +00:00
Sean Callanan
b76f351c0b
Quick fix for build errors caused by undefined
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NULL.
llvm-svn: 101180
2010-04-13 21:36:35 +00:00
Sean Callanan
29a7152676
Fixed a nasty layering violation in the edis source
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code. It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.
Also removed hacky #define-controlled initialization
of targets in edis. If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.
llvm-svn: 101179
2010-04-13 21:21:57 +00:00
Chris Lattner
e154403f78
delete a forwarding function.
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llvm-svn: 100815
2010-04-08 21:34:17 +00:00