Commit Graph

400 Commits

Author SHA1 Message Date
Daniel Dunbar
e3a98e546f MC/AsmParser: Add a DarwinAsmParser extension.
- Currently initialization is a bit of a hack, but harmless. We need to rework
   various parts of target initialization to clean this up.

llvm-svn: 108165
2010-07-12 18:12:02 +00:00
Daniel Dunbar
98d7990ac2 MCAsmParser: Pull some directive handling out into a helper class, and change
DirectiveMap to be based on MCAsmParserExtension.

llvm-svn: 108161
2010-07-12 17:54:38 +00:00
Daniel Dunbar
ffe3934e57 MC: Add MCAsmParserExtension, a base class for all the target/object specific
classes which want to extend the basic asm parser.

llvm-svn: 108158
2010-07-12 17:27:45 +00:00
Daniel Dunbar
fd54ea1239 MC: Move AsmParser::TokError to MCAsmParser().
llvm-svn: 108155
2010-07-12 17:18:45 +00:00
Daniel Dunbar
2be7d27677 MC: Move getLoc() to MCAsmLexer().
llvm-svn: 108154
2010-07-12 17:10:00 +00:00
Chris Lattner
666bfc3ab5 introduce WinCOFFObjectWriter, patch by Michael Spencer!
llvm-svn: 108103
2010-07-11 22:07:02 +00:00
Chris Lattner
f2c1a57940 introduce WinCOFFStreamer.cpp, patch by Michael Spencer!
llvm-svn: 108102
2010-07-11 22:05:00 +00:00
Kevin Enderby
8a8d96b89c Revert some unneeded parts of the change in r107886 for the
.weak_def_can_be_hidden directive.  Chris pointed out that the MCAsmInfo.h/.cpp
chunks aren't needed for this until the compiler starts generating these.  And
when that happens it will be more convenient for it to be a bool than a const
char*.

llvm-svn: 107906
2010-07-08 20:30:44 +00:00
Kevin Enderby
9bf8ee521c Added the darwin .weak_def_can_be_hidden directive.
llvm-svn: 107886
2010-07-08 17:22:42 +00:00
Daniel Dunbar
742376cfaa MC: Fix some stray hunks I didn't intend to commit.
llvm-svn: 107428
2010-07-01 20:48:51 +00:00
Daniel Dunbar
37b4089fbf MC: Pass the target instance to the AsmParser constructor.
llvm-svn: 107426
2010-07-01 20:41:56 +00:00
Daniel Dunbar
cc754e66c6 MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael
Spencer!

llvm-svn: 107418
2010-07-01 20:07:24 +00:00
Mikhail Glushenkov
0163e1e289 Trailing whitespace.
llvm-svn: 107360
2010-07-01 01:00:22 +00:00
Bill Wendling
59ef9bcc6d Revert r107205 and r107207.
llvm-svn: 107215
2010-06-29 22:34:52 +00:00
Bill Wendling
05a4c0b1f2 Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

       .globl l_objc_msgSend_fixup_alloc
       .weak_definition l_objc_msgSend_fixup_alloc
       .section __DATA, __objc_msgrefs, coalesced
       .align 3
l_objc_msgSend_fixup_alloc:
        .quad   _objc_msgSend_fixup
        .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

llvm-svn: 107205
2010-06-29 21:24:00 +00:00
Kevin Enderby
aaad4f57f0 Added the darwin .secure_log_unique and .secure_log_reset directives.
llvm-svn: 107077
2010-06-28 21:45:58 +00:00
Daniel Dunbar
2c6d6693e2 MC: Simplify MCAssembler::isSymbolLinkerVisible to only take an MCSymbol.
llvm-svn: 106142
2010-06-16 20:04:29 +00:00
Daniel Dunbar
7631ddfec4 MC: Lift SwitchSection() and Finish() into MCObjectStreamer.
llvm-svn: 106141
2010-06-16 20:04:25 +00:00
Daniel Dunbar
d52ca1c3e5 MC: Factor out an MCObjectStreamer class, which will be shared by the concrete
object file format writers.

llvm-svn: 106140
2010-06-16 20:04:22 +00:00
Dan Gohman
940f8f3947 Don't call flush() at a library level which isn't checking for errors
and doesn't know where the output is going.

llvm-svn: 105274
2010-06-01 16:31:34 +00:00
Dan Gohman
196387f66e Fix a typo in a comment.
llvm-svn: 105272
2010-06-01 16:10:08 +00:00
Daniel Dunbar
87dcbd1ee5 MC: Eliminate MCAsmFixup, replace with MCFixup.
llvm-svn: 104699
2010-05-26 15:18:56 +00:00
Daniel Dunbar
fe22195ea6 MC: Simplify MCFixup and increase the available offset size.
llvm-svn: 104698
2010-05-26 15:18:40 +00:00
Daniel Dunbar
55c1bf55fe MC: Use accessors for access to MCAsmFixup.
llvm-svn: 104697
2010-05-26 15:18:31 +00:00
Daniel Dunbar
a06aa279f4 MC: Eliminate MCFragment vtable, which was unnecessary.
llvm-svn: 104689
2010-05-26 06:50:57 +00:00
Eric Christopher
371732bd2a Start adding mach-o tls reloc support.
llvm-svn: 104651
2010-05-26 00:02:12 +00:00
Daniel Dunbar
eb23d9ac22 MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.
llvm-svn: 104463
2010-05-23 17:44:06 +00:00
Eric Christopher
0df4e8b6a5 Fix comment and whitespace.
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
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.
llvm-svn: 104316
2010-05-21 11:36:59 +00:00
Eric Christopher
09658d704d Fix build by actually declaring the variable.
llvm-svn: 104201
2010-05-20 00:59:30 +00:00
Eric Christopher
1a7bc06b28 Partial code for emitting thread local bss data.
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.
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.
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
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.
- 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.
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
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.
Nothing uses this yet.

llvm-svn: 103757
2010-05-14 01:50:28 +00:00
Nick Lewycky
aeb998db39 Fix typo.
llvm-svn: 103755
2010-05-14 01:02:48 +00:00
Daniel Dunbar
7fee3c7b28 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
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.
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.
llvm-svn: 103751
2010-05-14 00:37:14 +00:00
Daniel Dunbar
b2a98e0a16 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
Daniel Dunbar
86825a9719 MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().
llvm-svn: 103738
2010-05-13 20:40:12 +00:00
Daniel Dunbar
b142c00db4 MC: Factor out MCAssembler::ComputeFragmentSize.
llvm-svn: 103724
2010-05-13 18:35:06 +00:00
Daniel Dunbar
5a601f9e09 MC: Add section layout order indices to MCSectionData.
llvm-svn: 103715
2010-05-13 15:17:26 +00:00
Daniel Dunbar
5ef1bcbb97 MC: Add MCAsmLayout::FragmentReplaced() helper function.
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
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.
llvm-svn: 103690
2010-05-13 01:10:26 +00:00