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943 Commits

Author SHA1 Message Date
Rafael Espindola
3e2630deca Make it possible for the MCObjectWriter to decide if a given fixup is fully 
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

llvm-svn: 115131
 2010-09-30 02:22:20 +00:00
Jan Wen Voung
4b4807d984 Test commit - Deleted some whitespace at the end of a line. 
llvm-svn: 115122
 2010-09-30 01:09:20 +00:00
Rafael Espindola
96509a5550 Move "local commons" to the end of .bss to match the gnu as behavior. 
llvm-svn: 115037
 2010-09-29 14:52:01 +00:00
Michael J. Spencer
9c138864bc MC-COFF: Fix symbol storage class for globals 
llvm-svn: 115020
 2010-09-29 03:13:41 +00:00
Chris Lattner
9b9a847b8c change the protocol TargetAsmPArser::MatchInstruction method to take an 
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014
 2010-09-29 01:42:58 +00:00
Rafael Espindola
c604f87ba4 On elf, undefined symbols can start with .L. 
llvm-svn: 114958
 2010-09-28 16:19:11 +00:00
Rafael Espindola
c4d0ee0b96 Write relocations in the end of the file. This matches what gas does and 
makes files easier to diff.

llvm-svn: 114898
 2010-09-27 22:04:54 +00:00
Rafael Espindola
442f81681e Make sure .text doesn't produce extra alignment. 
llvm-svn: 114895
 2010-09-27 21:40:27 +00:00
Rafael Espindola
f987d204d5 Factor symbol value computation into a function. 
llvm-svn: 114891
 2010-09-27 21:23:02 +00:00
Michael J. Spencer
13fb9cadcb MC-COFF: Fix signed/unsigned comparison. 
llvm-svn: 114888
 2010-09-27 21:17:39 +00:00
Daniel Dunbar
7179426193 MC/AsmParser: Handle exponents in floating point literals. 
llvm-svn: 114861
 2010-09-27 20:12:52 +00:00
Rafael Espindola
843df9bbed Remove unused argument. 
llvm-svn: 114852
 2010-09-27 18:13:03 +00:00
Benjamin Kramer
cd6c025b08 Push twines deeper into SourceMgr's error handling methods. 
llvm-svn: 114847
 2010-09-27 17:42:11 +00:00
Michael J. Spencer
4867bf0fad MC-COFF: Drop empty sections, and label symbols. Convert relocations 
targeted at symbols into relocations relative to the containing section.

Patch by Nathan Jeffords!

llvm-svn: 114823
 2010-09-27 08:58:26 +00:00
Rafael Espindola
e4c0edf697 Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put 
symbols defined in merge sections in independent atoms.

llvm-svn: 114786
 2010-09-25 05:42:19 +00:00
Rafael Espindola
b70ab59ca8 Reapply 114678 and 114667. Reverting them did not fix the bot: 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost/builds/69

llvm-svn: 114761
 2010-09-24 21:19:03 +00:00
Rafael Espindola
909ffec6eb Revert 114678 and 114667 to see if 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost

gets happy.

llvm-svn: 114742
 2010-09-24 18:48:08 +00:00
Daniel Dunbar
452f5345c5 MC/AsmParser: Handle a missed case of floating literals in the lexer. 
llvm-svn: 114733
 2010-09-24 17:10:26 +00:00
Daniel Dunbar
702c4ef9d8 MC/AsmParser: Support .single and .double for embedding floating point literals. 
- I believe more modern 'gas' supports a more enhanced set of arithmetic on
   them, but for now the only thing we can do is emit them as data.

llvm-svn: 114719
 2010-09-24 01:59:56 +00:00
Daniel Dunbar
eacb42cfee MC/Lexer: Add 'Real' token type for floating point literals. 
llvm-svn: 114718
 2010-09-24 01:59:31 +00:00
Daniel Dunbar
5a7991262a MC: Add missing ')' in diagnostic. 
llvm-svn: 114717
 2010-09-24 01:58:56 +00:00
Rafael Espindola
4b0d25a0db Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

llvm-svn: 114690
 2010-09-23 19:55:14 +00:00
Rafael Espindola
44da043992 Correctly compute the offset of the symbol. Forgot these bits from the 
last commit.

llvm-svn: 114678
 2010-09-23 18:01:31 +00:00
Rafael Espindola
ce04ba0f70 Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

llvm-svn: 114667
 2010-09-23 17:25:18 +00:00
Rafael Espindola
4f8e36e163 Fix the FIXME. 
llvm-svn: 114639
 2010-09-23 14:14:56 +00:00
Sean Callanan
389f8119e1 Fixed a crash in the enhanced disassembler where 
because of the lack of a newline, AsmToken::Eof
was being found instead of AsmToken::EndOfStatement.

llvm-svn: 114621
 2010-09-23 02:14:12 +00:00
Jim Grosbach
d8735f1db1 Add support for ELF PLT references for ARM MC asm printing. Adding a 
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).

llvm-svn: 114613
 2010-09-22 23:27:36 +00:00
Rafael Espindola
3cfff6e0c5 Avoid some Mach-O specific alignment being done on ELF. 
llvm-svn: 114594
 2010-09-22 22:27:05 +00:00
Chris Lattner
04d9e1641f allow target-specific label suffixes, patch by Yuri Gribov! 
llvm-svn: 114592
 2010-09-22 22:19:53 +00:00
Rafael Espindola
ef6cf9dce9 Fix typo and add a FIXME. 
llvm-svn: 114570
 2010-09-22 19:04:41 +00:00
Jim Grosbach
8899a330c7 grammar tweakage 
llvm-svn: 114561
 2010-09-22 18:18:30 +00:00
Jim Grosbach
f8956463a7 remove trailing whitespace 
llvm-svn: 114560
 2010-09-22 18:16:55 +00:00
Rafael Espindola
a2d73f0a38 Correctly align bss. 
llvm-svn: 114556
 2010-09-22 17:43:04 +00:00
Chris Lattner
1c5e55f787 fix rdar://8456417 - llvm-mc can't do basic math 
llvm-svn: 114532
 2010-09-22 05:05:16 +00:00
Rafael Espindola
93f3fb8aca Revert unrelated change that was accidentally included in the previous commit. 
llvm-svn: 114383
 2010-09-21 00:40:19 +00:00
Rafael Espindola
02af3cdd58 Implement support for .local and its "interesting" interactions with .comm. 
llvm-svn: 114382
 2010-09-21 00:24:38 +00:00
Rafael Espindola
78fc1f7f66 Produce a R_X86_64_32 when the value is >=0. 
llvm-svn: 114339
 2010-09-20 19:20:47 +00:00
Rafael Espindola
9c3a9bf8aa Make sure the STT_FILE symbol is the first one in the symbol table. 
llvm-svn: 114285
 2010-09-18 15:03:21 +00:00
Rafael Espindola
acd5bacfb9 Avoid relocations in a common case. 
llvm-svn: 114229
 2010-09-17 22:34:41 +00:00
Daniel Dunbar
ea0a5aee7b Fix an MSVC warning. 
llvm-svn: 114184
 2010-09-17 16:34:24 +00:00
Daniel Dunbar
ed92665b19 MC/Mach-O/i386: Fix a crash in relocation handling. 
llvm-svn: 114176
 2010-09-17 15:21:50 +00:00
Daniel Dunbar
a43c86b354 MC/AsmParser: Add support for 'a + 4@GOTPCREL' and friends, by reconsing the 
expression to include the modifier.
 - Gross, but this a corner case we don't expect to see often in practice, but
   it is worth accepting.
 - Also improves diagnostics on invalid modifiers.

llvm-svn: 114154
 2010-09-17 02:47:07 +00:00
Rafael Espindola
d542892fc0 Print the address of sections as 0 and create the metadata sections in the 
same order as gnu as.

llvm-svn: 114109
 2010-09-16 19:46:31 +00:00
Rafael Espindola
fa964e153e Make sure that names like .note.GNU-stack are accepted as valid section names. 
llvm-svn: 114091
 2010-09-16 17:05:55 +00:00
Rafael Espindola
58aa9e8010 Add support for the .zero directive. 
llvm-svn: 114077
 2010-09-16 15:03:59 +00:00
Rafael Espindola
8a987c002e Add a InitSections method to the streamer interface. 
The ELF implementation now creates text, data and bss to match the gnu as
behavior.

The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.

A nice benefit is that -n is not required anymore when producing
ELF files.

llvm-svn: 114027
 2010-09-15 21:48:40 +00:00
Michael J. Spencer
90f807fda5 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
 2010-09-13 23:59:48 +00:00
Rafael Espindola
5b005d087c Factoring and potential bug fix. The elf "flags" cannot be used as masks. 
For example, setting STT_OBJECT (1) and STT_FUNC (2), should not produce
a STT_SECTION (3).

llvm-svn: 113759
 2010-09-13 17:39:45 +00:00
Rafael Espindola
ce9b27497e Add support for leb128 of absolute expressions. 
llvm-svn: 113691
 2010-09-11 16:45:15 +00:00
Chris Lattner
ffe1efe7ef fix the asmparser so that the target is responsible for skipping to 
the end of the line on a parser error, allowing skipping to happen
for syntactic errors but not for semantic errors.  Before we would
miss emitting a diagnostic about the second line, because we skipped
it due to the semantic error on the first line:

  foo %eax
  bar %al

This fixes rdar://8414033 - llvm-mc ignores lines after an invalid instruction mnemonic errors

llvm-svn: 113688
 2010-09-11 16:18:25 +00:00
Michael J. Spencer
98ad3f2ea7 CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally. 
llvm-svn: 113632
 2010-09-10 21:14:25 +00:00
Daniel Dunbar
547563df12 llvm-mc: Don't crash when using -n and we see a directive before the initial section. 
- This is annoying, because we have to scatter this check everywhere that could emit real data, but I see no better solution.

llvm-svn: 113552
 2010-09-09 22:42:59 +00:00
Daniel Dunbar
07c0ca2a51 llvm-mc: Make sure we exit != 0 if any errors are encountered. 
llvm-svn: 113551
 2010-09-09 22:42:56 +00:00
Benjamin Kramer
7ca791ef4f MCELF: Write relocation fragments in the right endian. 
- This code is gross, but does the job for now.

llvm-svn: 113509
 2010-09-09 18:01:29 +00:00
Roman Divacky
536c4ab8bd Make ELF OS ABI dependent on the OS from target triple. 
llvm-svn: 113508
 2010-09-09 17:57:50 +00:00
Daniel Dunbar
8c7fe0e9d0 MC: Give a (lame) hard error if a .org directive would create an unreasonably 
large object file (> 1GB).

llvm-svn: 113494
 2010-09-09 16:23:33 +00:00
Roman Divacky
c0f16ab31a ELF_STB_Local is 0 so setting and checking it must be done specially 
llvm-svn: 113375
 2010-09-08 18:08:40 +00:00
Roman Divacky
d56d1cd938 Unresolved weak symbols have value equal zero. 
llvm-svn: 113358
 2010-09-08 14:29:45 +00:00
Chris Lattner
0e0f9094e9 change the MC "ParseInstruction" interface to make it the 
implementation's job to check for and lex the EndOfStatement
marker.

llvm-svn: 113347
 2010-09-08 05:10:46 +00:00
Benjamin Kramer
2447226e73 MCELF: Align symtab, relocation sections and section headers properly. Patch by Krister Wombell. 
llvm-svn: 113155
 2010-09-06 16:11:52 +00:00
Bill Wendling
da6d7dd741 Get rid of "passing signed into unsigned parameter" warning on PPC. 
llvm-svn: 112995
 2010-09-03 19:09:46 +00:00
Benjamin Kramer
dd16ed1618 Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky. 
llvm-svn: 112849
 2010-09-02 18:53:37 +00:00
Benjamin Kramer
4d2c506037 Allow MCSA_WeakRef in ELF. Patch by Roman Divacky. 
llvm-svn: 112834
 2010-09-02 17:18:32 +00:00
Devang Patel
bbbd35d042 Fix .debug_range for linux. Patch by Krister Wombell. 
llvm-svn: 112830
 2010-09-02 16:43:44 +00:00
Devang Patel
9e8ee9242f Use absolute label for DW_AT_stmt_list if a target does not prefer offset here. 
This patch was developed on top of original patch by Artur Pietrek.

llvm-svn: 112678
 2010-08-31 23:50:19 +00:00
Kevin Enderby
cc1c9257f6 This is the second of three patches to implement support for the .loc directive 
and output the dwarf line number tables.  This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section.  These objects will be used for the final patch to 
build and emit the encoded dwarf line number tables.  Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.

llvm-svn: 112668
 2010-08-31 22:55:11 +00:00
Benjamin Kramer
3f8b8c1f5b Allow creation of SHT_NULL sections, from Roman Divacky. 
llvm-svn: 112605
 2010-08-31 17:03:33 +00:00
Benjamin Kramer
6c5076f317 MCELF: The value of all common symbols is the offset from the start of the section. Patch by Roman Divacky. 
llvm-svn: 112492
 2010-08-30 17:20:17 +00:00
Benjamin Kramer
b540b09a7c The value is offset from the start of the section for non-common symbols, submitted by Jordan Gordeev. 
llvm-svn: 112473
 2010-08-30 12:00:16 +00:00
Benjamin Kramer
ca65cc9222 Index external symbols by symbol table instead of parent section, by Roman Divacky. 
llvm-svn: 112472
 2010-08-30 11:59:29 +00:00
Benjamin Kramer
3aabb3eb53 Mark all common symbols external. This is not exactly correct but it lets apps 
link for now and can be adjusted later. Patch by Roman Divacky.

llvm-svn: 112471
 2010-08-30 11:56:55 +00:00
Chris Lattner
b2dbdbc795 squish dead code. 
llvm-svn: 112350
 2010-08-28 03:21:03 +00:00
Benjamin Kramer
f5c811611e MCELF: Port EmitInstruction changes from MachO streamer. Patch by Roman Divacky. 
llvm-svn: 112260
 2010-08-27 10:40:51 +00:00
Benjamin Kramer
4e04c2e69f MCELF: Always overwrite FixedValue. 
llvm-svn: 112259
 2010-08-27 10:38:39 +00:00
Benjamin Kramer
537450a5e8 MCELF: Fix a thinko of mine. 
llvm-svn: 112203
 2010-08-26 18:12:04 +00:00
Benjamin Kramer
a1f93ec939 MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups. 
llvm-svn: 112197
 2010-08-26 17:23:02 +00:00
Benjamin Kramer
ebee78319c MCELF: Use precomputed symbol indices, patch by Roman Divacky. 
llvm-svn: 112079
 2010-08-25 20:09:43 +00:00
Michael J. Spencer
052ffacb48 MC: Fix inconsistant naming in COFF object writer. Patch by Cameron Esfahani. 
llvm-svn: 112076
 2010-08-25 19:27:27 +00:00
Kevin Enderby
bb121d1dc2 Change the parsing of .loc back to allow the LineNumber field to be optional as 
it is with other assemblers.

llvm-svn: 111967
 2010-08-24 21:14:47 +00:00
Michael J. Spencer
526e183800 Fix COFF x86-64 relocations. PR7960. 
Multiple symbol reloc handling part of the patch by Cameron Esfahani.

llvm-svn: 111963
 2010-08-24 21:04:52 +00:00
Kevin Enderby
024b04ad93 First bit of support for the dwarf .loc directive. This patch updates the 
needed parsing for the .loc directive and saves the current info from that
into the context.  The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables.  The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.

llvm-svn: 111956
 2010-08-24 20:32:42 +00:00
Daniel Dunbar
bd6901864b MC/AsmParser: Change ParseExpression to use ParseIdentifier(), to support 
dollars in identifiers.

llvm-svn: 111946
 2010-08-24 19:13:42 +00:00
Daniel Dunbar
7859dfd71b MC/Parser: Accept leading dollar signs in identifiers. 
- Implemented by manually splicing the tokens. If this turns out to be
   problematically platform specific, a more elegant solution would be to
   implement some context dependent lexing support.

llvm-svn: 111934
 2010-08-24 18:12:12 +00:00
Benjamin Kramer
958ba693b5 Relocate against parent if the symbol is not in section or it's a common symbol, from Roman Divacky. 
llvm-svn: 111925
 2010-08-24 17:34:39 +00:00
Chris Lattner
115fdde871 fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals. 
Also fix 0b010 syntax to actually work while we're at it :-)

llvm-svn: 111876
 2010-08-24 00:43:25 +00:00
Benjamin Kramer
b08a868783 Fix thinko. Having no tests is great ... 
llvm-svn: 111848
 2010-08-23 21:32:00 +00:00
Benjamin Kramer
005c0b532e Reduce code duplication. 
llvm-svn: 111846
 2010-08-23 21:23:52 +00:00
Benjamin Kramer
8961d86d95 ELFObjectWriter: Run ComputeSymbolTable before recording relocations. This way we can use the information it has computed and don't have to recompute the same stuff over and over again. 
llvm-svn: 111844
 2010-08-23 21:19:37 +00:00
Benjamin Kramer
be1f37f512 Add the symbol offset to the relocation value when we relocate against section. By Roman Divacky. 
llvm-svn: 111824
 2010-08-23 19:05:46 +00:00
Benjamin Kramer
c67b87ec44 Use the proper relocation section + cleanup, from Roman Divacky. 
llvm-svn: 111819
 2010-08-23 18:24:20 +00:00
Michael J. Spencer
82f1603fa7 Revert part of my last commit. the mingw32 build bot doesn't seem to like it. 
llvm-svn: 111793
 2010-08-23 05:25:23 +00:00
Michael J. Spencer
c52ac23659 Workaround broken jump tables on x86-64 COFF. 
llvm-svn: 111792
 2010-08-23 04:45:37 +00:00
Michael J. Spencer
18689045ce MC: Add partial x86-64 support to COFF. 
llvm-svn: 111728
 2010-08-21 05:58:13 +00:00
Benjamin Kramer
574b1a27b1 MCELF: Count the section orders properly. Patch by Roman Divacky. 
llvm-svn: 111517
 2010-08-19 13:44:49 +00:00
Daniel Dunbar
9ced206b3a MC/ELF: Allow null values in virtual sections, ELF doesn't use special 
directives for putting contents in .bss, for example.

llvm-svn: 111376
 2010-08-18 18:22:37 +00:00
Benjamin Kramer
5756afebba Remove dead code. Fixes a GCC warning. 
llvm-svn: 111271
 2010-08-17 19:45:05 +00:00
Benjamin Kramer
1e37b165c8 Sketch i386 relocations handling, from Roman Divacky. 
Hello world builds & runs now on i386/ELF with -integrated-as.

llvm-svn: 111264
 2010-08-17 18:20:28 +00:00
Benjamin Kramer
3bc7de0605 Use the correct entry size for relocation entries, from Roman Divacky. 
llvm-svn: 111259
 2010-08-17 17:56:13 +00:00
Benjamin Kramer
cc741eccfa Differentiate between RELA and REL relocations, from Roman Divacky. 
llvm-svn: 111252
 2010-08-17 17:30:07 +00:00
Benjamin Kramer
2bf444b7d4 One baby step towards i386 ELF, from Roman Divacky. 
llvm-svn: 111247
 2010-08-17 17:02:29 +00:00
Benjamin Kramer
3acf387e2d Try to silence a overeager GCC warning. 
llvm-svn: 111214
 2010-08-17 00:33:24 +00:00
Benjamin Kramer
41deb334b5 A round of minor cleanups for ELFObjectWriter. 
llvm-svn: 111213
 2010-08-17 00:00:46 +00:00
Benjamin Kramer
70e0faed21 Silence warnings and simplify code. Eliminate a 32/64 bit portability issue. 
llvm-svn: 111201
 2010-08-16 23:00:12 +00:00
Eli Friedman
39484fda25 Fixes for generation of ELF relocations. Patch by Roman Divacky. 
llvm-svn: 111183
 2010-08-16 21:17:09 +00:00
Eli Friedman
d2c0d2d0bb Fix a few warnings in and detabify MCELFStreamer and ELFObjectWriter. 
llvm-svn: 111175
 2010-08-16 19:15:06 +00:00
Matt Fleming
8183e01389 Add ELF ObjectWriter and Streamer support. 
I forgot to add these files in commit 111172.

llvm-svn: 111174
 2010-08-16 18:57:57 +00:00
Matt Fleming
e381e308f2 Add ELF ObjectWriter and Streamer support. 
llvm-svn: 111172
 2010-08-16 18:35:43 +00:00
Matt Fleming
5fc461afc4 Layout helper function. 
Introduce a helper method to add a section to the end of a layout. This
will be used by the ELF ObjectWriter code to add the metadata sections
(symbol table, etc) to the end of an object file.

llvm-svn: 111171
 2010-08-16 18:35:06 +00:00
Matt Fleming
162726c305 Record a symbol's size which is needed for ELF symbol tables. 
llvm-svn: 111170
 2010-08-16 18:34:31 +00:00
Chris Lattner
e51188af11 silence a vc2010 warning: " result of 32-bit shift implicitly converted to 
64 bits (was 64-bit shift intended?)", pointed out by 'nobled' on llvmdev

llvm-svn: 111148
 2010-08-16 16:35:20 +00:00
Daniel Dunbar
f2b4982344 MC/AsmParser: Push the burdon of emitting diagnostics about unmatched 
instructions onto the target specific parser, which can do a better job.

llvm-svn: 110889
 2010-08-12 00:55:38 +00:00
Daniel Dunbar
4882ffc373 llvm-mc: Add -show-inst-operands, for dumping the parsed instruction representation before matching. 
llvm-svn: 110791
 2010-08-11 06:37:09 +00:00
Daniel Dunbar
ee80a239ed MCAsmParser: Add dump() hook to MCParsedAsmOperand. 
llvm-svn: 110790
 2010-08-11 06:37:04 +00:00
Daniel Dunbar
f7233103ff MC/AsmParser: Fix a bug in macro argument parsing, which was dropping 
parentheses from argument lists.

llvm-svn: 110692
 2010-08-10 17:38:52 +00:00
Michael J. Spencer
26a45fe57e Revert "MC/MachO: Fix possible null pointer dereference." 
This reverts commit 110575.

Target.isAbsolute() is true if SD would be null.

llvm-svn: 110683
 2010-08-10 16:00:49 +00:00
Kevin Enderby
8303a64b0a Next bit of support for the dwarf .file directive. This patch takes the 
previously collected info from the .file directives and outputs the encoded
bytes for it.  For now this is only in the Mach-O streamer but at some point
will move to a more generic place.

llvm-svn: 110617
 2010-08-09 22:52:14 +00:00
Michael J. Spencer
72463de287 MC/MachO: Fix possible null pointer dereference. 
Discovered by Microsoft Visual Studio 2010 Code Analysis.

llvm-svn: 110575
 2010-08-09 15:28:05 +00:00
Michael J. Spencer
59bd7389a4 MC: Fix symbol fragment offsets in COFF. 
Patch by Cameron Esfahani!

llvm-svn: 110104
 2010-08-03 05:02:46 +00:00
Michael J. Spencer
135ecc4689 Revert "MC: Fix symbol fragment offsets in COFF." 
This reverts commit r110100

Wrong path caps.

llvm-svn: 110103
 2010-08-03 04:53:28 +00:00
Michael J. Spencer
6ff92fbc86 MC: Add time travel support to COFF. 
llvm-svn: 110101
 2010-08-03 04:43:33 +00:00
Michael J. Spencer
b9653145e4 MC: Fix symbol fragment offsets in COFF. 
Patch by Cameron Esfahani!

llvm-svn: 110100
 2010-08-03 04:43:24 +00:00
Daniel Dunbar
e0737ebae3 Silence some -Asserts uninitialized variable warnings. 
llvm-svn: 109956
 2010-07-31 21:08:54 +00:00
Michael J. Spencer
b52ff1ba41 Add relax all support to the COFF object streamer. 
llvm-svn: 109947
 2010-07-31 06:22:29 +00:00
Daniel Dunbar
19ee08da53 MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani. 
llvm-svn: 109875
 2010-07-30 18:32:09 +00:00
Benjamin Kramer
d1340209a1 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter. 
llvm-svn: 109767
 2010-07-29 17:48:06 +00:00
Benjamin Kramer
85d8649a9c Stop leaking std::strings in GetDwarfFile. 
llvm-svn: 109746
 2010-07-29 13:53:19 +00:00
Benjamin Kramer
20e27bc59b COFFObjectWriter: Don't leak COFFSymbols and COFFSections. 
llvm-svn: 109745
 2010-07-29 11:57:59 +00:00
Daniel Dunbar
7972ac4c88 MC: Destroy Macro instances. 
llvm-svn: 109720
 2010-07-29 01:51:55 +00:00
Kevin Enderby
3f202e65e8 Added first bit of support for the dwarf .file directive. This patch collects 
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
 2010-07-28 20:55:35 +00:00
Daniel Dunbar
1c35389c03 MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh). 
llvm-svn: 109649
 2010-07-28 20:28:45 +00:00
Douglas Gregor
8f3e666150 Fix format-specifier warning 
llvm-svn: 109391
 2010-07-26 03:55:44 +00:00
Michael J. Spencer
d061ee82ad MC: Fix whitespace error from last commit. 
A Visual C++ extension that removes trailing new lines? Seriously?

llvm-svn: 109390
 2010-07-26 03:01:28 +00:00
Michael J. Spencer
9d96c92bde MC: Add WinCOFFObjectWriter implementation. 
Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 109389
 2010-07-26 02:17:32 +00:00
Reid Kleckner
3a876ca187 Initial modifications to MCAssembler and TargetMachine for the MCJIT. 
Patch by Olivier Meurant!

llvm-svn: 109080
 2010-07-22 05:58:53 +00:00
Matt Fleming
d968913a7e Add some more handlers for ELF section directives. 
llvm-svn: 108928
 2010-07-20 21:12:46 +00:00
Owen Anderson
302d0db7c2 Let's get those buildbots green: #include is needed in the header, not just the implementation. 
llvm-svn: 108912
 2010-07-20 20:16:11 +00:00
Chris Lattner
2acdd8ad4b apparently also missing an include. 
llvm-svn: 108908
 2010-07-20 20:06:19 +00:00
Chris Lattner
a00e818ad9 this is in System 
llvm-svn: 108895
 2010-07-20 19:54:01 +00:00
Chris Lattner
d880fa4f2b turn this into a normal header. 
llvm-svn: 108891
 2010-07-20 19:43:19 +00:00
Chris Lattner
4f8370727d hopefully heal the linux builders 
llvm-svn: 108890
 2010-07-20 19:40:51 +00:00
Chris Lattner
32df8100f3 there is no reason to dynamically generate a static header. 
llvm-svn: 108887
 2010-07-20 18:59:58 +00:00
Chris Lattner
a004760c84 drop edinfo.inc into the objdir for src!=objdir builds. 
llvm-svn: 108886
 2010-07-20 18:53:27 +00:00
Eric Christopher
afecfd5c44 Update header. 
llvm-svn: 108883
 2010-07-20 18:46:43 +00:00
Chris Lattner
04a14f79da hopefully teach cmake to build the .inc file. 
llvm-svn: 108874
 2010-07-20 18:33:21 +00:00
Chris Lattner
f5da80b271 cmake too 
llvm-svn: 108872
 2010-07-20 18:30:37 +00:00
Chris Lattner
51a1edf47f forgot to add a file 
llvm-svn: 108870
 2010-07-20 18:29:50 +00:00
Chris Lattner
1ac58ea0f3 start straightening out libedis's dependencies and make it fit 
better in the llvm world.  Among other things, this changes:

1. The guts of libedis are now moved into lib/MC/MCDisassembler
2. llvm-mc now depends on lib/MC/MCDisassembler, not tools/edis,
   so edis and mc don't have to be built in series.
3. lib/MC/MCDisassembler no longer depends on the C api, the C
   API depends on it.
4. Various code cleanup changes. 

There is still a lot to be done to make edis fit with the llvm
design, but this is an incremental step in the right direction.

llvm-svn: 108869
 2010-07-20 18:25:19 +00:00
Daniel Dunbar
ee5365dc8b MC/Mach-O: Silently ignore .file directives instead of error'ing out on 
them. They aren't important enough to abort the entire assembly, and failing
early makes testing more annoying.

llvm-svn: 108747
 2010-07-19 20:44:20 +00:00
Michael J. Spencer
7e18da0bce _[A-Z] identifiers are reserved for the implementation. 
llvm-svn: 108682
 2010-07-19 06:26:19 +00:00
Michael J. Spencer
be36f07b08 MC: Add WinCOFFStreamer implementation and merge common code from MachO 
into MCObjectStreamer.

Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 108678
 2010-07-19 06:13:10 +00:00
Daniel Dunbar
f58b5d7ad0 TblGen/AsmMatcher: Add support for honoring instruction Requires<[]> attributes as part of the matcher. 
- Currently includes a hack to limit ourselves to "In32BitMode" and "In64BitMode", because we don't have the other infrastructure to properly deal with setting SSE, etc. features on X86.

llvm-svn: 108677
 2010-07-19 05:44:09 +00:00
Eli Friedman
5c629bb609 Make .align parse correctly on platforms where .align is measured in bytes. 
llvm-svn: 108674
 2010-07-19 04:17:25 +00:00
Daniel Dunbar
5b6b28e897 MC/AsmParser: Stop playing unsafe member function pointer calls, this isn't 
portable enough.
 - Downside is we now double dispatch through a stub function, but this isn't
   performance critical.

llvm-svn: 108661
 2010-07-18 22:22:07 +00:00
Daniel Dunbar
79350dba6e MC/AsmParser: Fix .abort and .secure_log_unique to accept arbitrary token 
sequences, not just strings.

llvm-svn: 108655
 2010-07-18 20:15:59 +00:00
Daniel Dunbar
7d498fb3fc MC/AsmParser: Add macro argument substitution support. 
llvm-svn: 108654
 2010-07-18 19:00:10 +00:00
Daniel Dunbar
312b5e0d2b MC/AsmParser: Add basic support for macro instantiation. 
llvm-svn: 108653
 2010-07-18 18:54:11 +00:00
Daniel Dunbar
4ee82b993f MC/AsmParser: Add basic parsing support for .macro definitions. 
llvm-svn: 108652
 2010-07-18 18:47:21 +00:00
Daniel Dunbar
44cddadb54 MC/AsmParser: Add .macros_{off,on} support, not that makes sense since we don't 
support macros.

llvm-svn: 108649
 2010-07-18 18:38:02 +00:00
Daniel Dunbar
cf14c09d6a MC/AsmParser: Use Error() instead of calling PrintMessage() directly. 
llvm-svn: 108648
 2010-07-18 18:31:45 +00:00
Daniel Dunbar
2b388a1255 MC/AsmParser: Fix TokError() to accept a Twine. 
llvm-svn: 108647
 2010-07-18 18:31:42 +00:00
Daniel Dunbar
9a7d4a5dee MC/AsmParser: Hide the AsmParser implementation. 
llvm-svn: 108646
 2010-07-18 18:31:38 +00:00
Eli Friedman
e0fd89f780 Start of .sleb128/.uleb128 parsing support. 
llvm-svn: 108612
 2010-07-17 06:27:28 +00:00
Eli Friedman
beee77c1c5 Work-in-progress parsing for ELF .section directive. 
llvm-svn: 108609
 2010-07-17 04:29:04 +00:00
Eli Friedman
e758dc641d Add support for parsing .size directives for ELF. 
llvm-svn: 108606
 2010-07-17 03:09:18 +00:00
Daniel Dunbar
4dca88a1e9 MC/AsmParser: Lift Run() and TargetParser to base class. 
Also, add constructor function for creating AsmParser instances.

llvm-svn: 108604
 2010-07-17 02:26:10 +00:00
Chris Lattner
403b684f74 fix indentation and 80 cols 
llvm-svn: 108460
 2010-07-15 21:19:31 +00:00
Benjamin Kramer
da3e6cdb26 Don't pass StringRef by reference. 
llvm-svn: 108366
 2010-07-14 22:38:02 +00:00
Daniel Dunbar
6b7349fa24 MC/AsmParser: Move ELF specific parser to ELFAsmParser.cpp. 
llvm-svn: 108196
 2010-07-12 21:23:32 +00:00
Daniel Dunbar
cb36453016 MC/AsmParser: Move Darwin specific parse to DarwinAsmParser.cpp. 
llvm-svn: 108193
 2010-07-12 20:51:51 +00:00
Daniel Dunbar
9144ed1e2e MC/AsmParser: Move .section parsing to Darwin specific parser. 
llvm-svn: 108190
 2010-07-12 20:42:34 +00:00
Daniel Dunbar
dea52ae42c MC/AsmParser: Move special section directive parsing to Darwin specific parser. 
llvm-svn: 108187
 2010-07-12 20:23:36 +00:00
Daniel Dunbar
c02b92ed37 MC/AsmParser: Add a basic ELFAsmParser extension. 
llvm-svn: 108185
 2010-07-12 20:08:04 +00:00
Daniel Dunbar
f3e14374cb MC/AsmParser: Inline AsmParser::CreateSymbol into callers. 
llvm-svn: 108183
 2010-07-12 19:52:10 +00:00
Daniel Dunbar
d1c2da9d0b MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser. 
llvm-svn: 108180
 2010-07-12 19:37:35 +00:00
Daniel Dunbar
a1e5852feb MC/AsmParser: Move .desc parsing to Darwin specific parser. 
llvm-svn: 108179
 2010-07-12 19:22:53 +00:00
Daniel Dunbar
212b42f5ec MC/AsmParser: Move .lsym parsing to Darwin specific parser. 
llvm-svn: 108176
 2010-07-12 19:08:25 +00:00
Daniel Dunbar
50b931bbac MC/AsmParser: Move some misc. Darwin directive handling to DarwinAsmParser. 
llvm-svn: 108174
 2010-07-12 18:49:22 +00:00
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
56e12eeae9 MC/AsmParser: Switch a bunch of directive parsing to use accessors. 
llvm-svn: 108163
 2010-07-12 18:03:11 +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
f93c614035 MC/AsmParser: Switch some directive parsing to use accessor methods. 
llvm-svn: 108160
 2010-07-12 17:45:27 +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
Duncan Sands
f7b98e2b1e Convert some tab stops into spaces. 
llvm-svn: 108130
 2010-07-12 08:16:59 +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
Chris Lattner
155420f59f finish up support for callw: PR7195 
llvm-svn: 107826
 2010-07-07 22:35:13 +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
769d88aa45 MC: Fix an error message. 
llvm-svn: 107424
 2010-07-01 20:20:01 +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
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
Duncan Sands
84321cc550 The variable ValueSize is set to 1 on both code paths, and then 
ignored!  Remove it.

llvm-svn: 107138
 2010-06-29 13:30:08 +00:00
Duncan Sands
5446bab8a5 The variable "Value" is carefully set to Layout.getSymbolAddress, 
but then not actually used - maybe a bug?  Remove the variable.

llvm-svn: 107137
 2010-06-29 13:26:33 +00:00
Duncan Sands
78f0758143 Remove unused calls to Lexer.getLoc and the pointless variable HasFillExpr. 
llvm-svn: 107136
 2010-06-29 13:24:40 +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
Eric Christopher
0c4230b33c Get the addend correct for i386 pic. 
Thanks Daniel!

llvm-svn: 106608
 2010-06-22 23:51:47 +00:00
Chris Lattner
dbea6d7acb "This is just a cosmetic change in MCAsmStreamer.cpp/EmitSymbolAttribute: all attributes have now a \t before and after, as done for '.type'. 
This makes the output look consistent, as well as help some third party assemblers expecting the attributes to be in the second column."

Patch by Arnaud de Grandmaison!

llvm-svn: 106469
 2010-06-21 20:35:01 +00:00
Eric Christopher
b92292eb08 Update comment. 
llvm-svn: 106191
 2010-06-17 00:49:46 +00:00
Eric Christopher
9c56c0a851 In progress on 32-bit addends. 
llvm-svn: 106154
 2010-06-16 21:32:38 +00:00
Daniel Dunbar
15c2792d21 MC/Mach-O: Rewrite atom association to be a final pass we do in Finish(), instead of tracking as part of emission. 
- This allows sharing more code with the MCObjectStreamer.

llvm-svn: 106143
 2010-06-16 20:04:32 +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
Eric Christopher
62a7f68562 Fix indentation. 
llvm-svn: 106072
 2010-06-16 00:26:36 +00:00
Eric Christopher
6c154dc98d Some more work on mach-o TLV relocations. 
llvm-svn: 106062
 2010-06-15 22:59:05 +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
Eric Christopher
405e56fdfb Rearrange conditionals so we don't get caught with the correct type as wrong. 
llvm-svn: 104793
 2010-05-27 00:52:31 +00:00
Daniel Dunbar
c53aec29c9 MC: When running with -mc-relax-all, we can eagerly relax instructions and avoid creating unnecessary MCInstFragments. 
llvm-svn: 104736
 2010-05-26 20:37:03 +00:00
Daniel Dunbar
46774d4abc MC/Mach-O: Factor out EmitInstTo{Fragment,Data} for emitting MCInst's as MCInstFragments or appending onto an MCDataFragment. 
llvm-svn: 104735
 2010-05-26 20:37:00 +00:00
Daniel Dunbar
1b8e1aafae MC: Change RelaxInstruction to only take the input and output instructions. 
llvm-svn: 104713
 2010-05-26 18:15:06 +00:00
Daniel Dunbar
7ab1807888 MC: Eliminate an unnecessary copy. 
llvm-svn: 104709
 2010-05-26 17:50:16 +00:00
Daniel Dunbar
77240e2337 MC: Simplify MayNeedRelaxation to not provide the fixups, so we can query it 
before encoding.

llvm-svn: 104707
 2010-05-26 17:45:29 +00:00
Daniel Dunbar
87dcbd1ee5 MC: Eliminate MCAsmFixup, replace with MCFixup. 
llvm-svn: 104699
 2010-05-26 15:18:56 +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
f50c283a31 MC: Change MCInst::dump_pretty to not include a trailing newline. 
llvm-svn: 104696
 2010-05-26 15:18:13 +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
5bef2f5031 llvm-mc: Use EmitIntValue where possible, which makes the API calls from the AsmParser and CodeGen line up better. 
llvm-svn: 104467
 2010-05-23 18:36:38 +00:00
Daniel Dunbar
e87e067d2c llvm-mc: Use AddBlankLine in asm parser. This makes transliteration match the input much more closely, and also makes the API calls from the AsmParser and CodeGen line up better. 
llvm-svn: 104466
 2010-05-23 18:36:34 +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
d250f449cb Expand on comment. 
llvm-svn: 104396
 2010-05-21 23:03:53 +00:00
Eric Christopher
5fc9256574 Fix section attribute name. 
llvm-svn: 104381
 2010-05-21 21:08:52 +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
Matt Fleming
eb6f789e6f Grammar fix. This is a test commit. 
llvm-svn: 104264
 2010-05-20 19:45:09 +00:00
Benjamin Kramer
47bf53a5dd Reduce string trashing. 
llvm-svn: 104223
 2010-05-20 14:14:22 +00:00
Eric Christopher
1a7bc06b28 Partial code for emitting thread local bss data. 
llvm-svn: 104197
 2010-05-20 00:49:07 +00:00
Chris Lattner
aedd148163 fix rdar://7986634 - match instruction opcodes case insensitively. 
llvm-svn: 104183
 2010-05-19 23:34:33 +00:00
Eric Christopher
3f0aa8bf21 Implement EmitTBSSSymbol for MachOStreamer. 
Fixes build failure as well.

llvm-svn: 104059
 2010-05-18 21:26:41 +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
cd585da505 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
Kevin Enderby
438a36f66a 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
Daniel Dunbar
739e720a21 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
Daniel Dunbar
9a1bbd9dc5 MC/Mach-O: Remove some FIXMEs. 
llvm-svn: 104032
 2010-05-18 17:28:20 +00:00
Daniel Dunbar
5ed90337ff 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
Benjamin Kramer
ad350eb789 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
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
b18dfe6cb4 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
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
Daniel Dunbar
ee5ac7a69b 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
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
80719b2d36 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
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
950f0d7892 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
Daniel Dunbar
89a1d9036a 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
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
Eric Christopher
0b3085ae2e Fix a couple of typos. 
llvm-svn: 103756
 2010-05-14 01:38:54 +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
bfc0b2083d MC: Implicitly assign section addresses when the previous fragment is layed out. 
llvm-svn: 103752
 2010-05-14 00:37:17 +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
aa67ae072c 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
Daniel Dunbar
e72ef430f7 MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout. 
llvm-svn: 103710
 2010-05-13 08:43:34 +00:00
Daniel Dunbar
5ef1bcbb97 MC: Add MCAsmLayout::FragmentReplaced() helper function. 
llvm-svn: 103709
 2010-05-13 08:43:31 +00:00
Daniel Dunbar
5759287db9 Fix -Asserts warning. 
llvm-svn: 103697
 2010-05-13 03:50:50 +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
a81966a973 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
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
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). 
llvm-svn: 103689
 2010-05-13 01:10:22 +00:00
Chris Lattner
ca57d80f83 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
Daniel Dunbar
de7caed021 MC: Move MCAlignFragment::EmitNops value out of the constructor. 
llvm-svn: 103665
 2010-05-12 22:56:23 +00:00
Daniel Dunbar
cf11e2a0a5 MC: Eliminate MCZeroFillFragment, it is no longer needed. 
llvm-svn: 103664
 2010-05-12 22:51:38 +00:00
Daniel Dunbar
0040c2c393 MC: Explicitly check that only virtual fragments appear in virtual sections. 
llvm-svn: 103663
 2010-05-12 22:51:35 +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. 
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 
MCAlignFragments for this.

llvm-svn: 103661
 2010-05-12 22:51:27 +00:00
Daniel Dunbar
e8f8a29de5 Simplify. 
llvm-svn: 103651
 2010-05-12 21:47:55 +00:00
Daniel Dunbar
6a495507e5 MC: Factor out MCAssembler::LayoutFragment 
llvm-svn: 103649
 2010-05-12 21:35:25 +00:00
Daniel Dunbar
43dad4fc73 MC: Tweak section layout to not relying on accumulating address value. 
llvm-svn: 103648
 2010-05-12 21:35:22 +00:00
Daniel Dunbar
7b72c3c7a0 MC: Simplify LayoutSection to just take the index of the section to layout. 
llvm-svn: 103627
 2010-05-12 17:56:47 +00:00
Daniel Dunbar
adca38558e MC: Track section layout order explicitly, and use to simplify. 
llvm-svn: 103616
 2010-05-12 15:42:59 +00:00
Nathan Jeffords
b578f7106d 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
Rafael Espindola
3efc86abab Add support for movi32 of global values to the new (MC) asm printer. 
llvm-svn: 103576
 2010-05-12 05:16:34 +00:00
Nathan Jeffords
9952bcf9f6 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
Daniel Dunbar
e5a79692cf 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.

llvm-svn: 103532
 2010-05-12 00:38:17 +00:00
Daniel Dunbar
a033860d55 MC/Mach-O/x86_64: Fix PCrel adjustment for x86_64, which was using the fixup 
offset instead of the fixup address as intended.

llvm-svn: 103527
 2010-05-11 23:53:11 +00:00
Daniel Dunbar
7d7b6cf3b7 MC/Mach-O: As Kevin pointed out, 'Address' is really an offset -- rename to clarify. 
llvm-svn: 103526
 2010-05-11 23:53:07 +00:00
Daniel Dunbar
e43676c164 MC/Mach-O: Fix a crash on invalid. 
llvm-svn: 103525
 2010-05-11 23:53:05 +00:00
Daniel Dunbar
7670f69e42 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.

llvm-svn: 103480
 2010-05-11 17:22:50 +00:00
Daniel Dunbar
d2c14ce38d MC/Mach-O: Fix another mismatch with .weak_definition, we shouldn't use a 
scattered relocation entry with a .weak_definition.

llvm-svn: 103443
 2010-05-10 23:15:20 +00:00
Daniel Dunbar
c54539c121 MC/Mach-O: Factor out doesSymbolRequireExternRelocation. 
llvm-svn: 103442
 2010-05-10 23:15:13 +00:00
Daniel Dunbar
00ffbb63da MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used). 
llvm-svn: 103438
 2010-05-10 22:45:09 +00:00
Nathan Jeffords
2932cc35b5 test commit, added a comment to MCSectionCOFF::PrintSwitchToSection function 
llvm-svn: 103372
 2010-05-09 05:49:00 +00:00
Chris Lattner
568058ef71 break coff symbol definition stuff out into proper MCStreamer callbacks, 
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! 
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 
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
Ted Kremenek
92ee3f2897 Update CMake build. 
llvm-svn: 103269
 2010-05-07 17:29:48 +00:00
Chris Lattner
c1d0e3a79e switch MCSectionCOFF from a syntactic to semantic representation, 
patch by Peter Housel!

llvm-svn: 103267
 2010-05-07 17:17:41 +00:00
Daniel Dunbar
a3731b17c0 Revert r103137, fix for $ in labels. It looks like we can't actually handle this 
at the token level. Consider the following horrible test case:

  a = 1
  .globl $a
  movl ($a), %eax
  movl $a, %eax
  movl $$a, %eax

llvm-svn: 103178
 2010-05-06 14:46:38 +00:00
Chris Lattner
ca80f41a4d fix rdar://7946934 - in some limited cases, the assembler should 
allow $ at the start of a symbol name.

llvm-svn: 103137
 2010-05-05 23:51:28 +00:00
Daniel Dunbar
9a3d46162f MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for 
writing them.
 - <rdar://problem/7885351> integrated assembler broken for i386 objc code

llvm-svn: 103112
 2010-05-05 19:01:05 +00:00
Daniel Dunbar
139bd85642 MC: Reject attempts to define a variable symbol. 
llvm-svn: 103111
 2010-05-05 19:01:00 +00:00