699 Commits

Author SHA1 Message Date
Kevin Enderby
0620ec51f6 Changes EvaluateAsAbsolute() to return the "current value" of the expression
if we are given a Layout object, even in cases when the value is not fixed.
This will be needed by the final patch for the dwarf .loc support to size a
new MCDwarf fragment needed to build and emit dwarf line number tables.

llvm-svn: 115155
2010-09-30 16:42:21 +00:00
Chandler Carruth
85a55025d8 Silence a GCC warning about not handling all flags in this switch, we
specifically assert on unexpected flags.

llvm-svn: 115143
2010-09-30 10:59:51 +00:00
Jan Wen Voung
7df9bf0092 Move logic of determining ELF entsize from the .s printer to initialization
time. That way, the EntrySize field is initialized for other code paths, 
namely, the .ll -> .o code path.

llvm-svn: 115141
2010-09-30 05:59:22 +00:00
Rafael Espindola
480ee577ad Correctly produce R_X86_64_32 or R_X86_64_32S.
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

llvm-svn: 115134
2010-09-30 03:11:42 +00:00
Jason W Kim
7822e6aab5 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile()
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.

llvm-svn: 115133
2010-09-30 02:45:56 +00:00
Jan Wen Voung
0d25ddb1de Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when
constructing a section. Test for a few cases also included.

llvm-svn: 115132
2010-09-30 02:41:46 +00:00
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