Commit Graph

411 Commits

Author SHA1 Message Date
Daniel Dunbar
a5f1d57f65 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103532 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-12 00:38:17 +00:00
Daniel Dunbar
db4c7e606f MC/Mach-O/x86_64: Fix PCrel adjustment for x86_64, which was using the fixup
offset instead of the fixup address as intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103527 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 23:53:11 +00:00
Daniel Dunbar
640e948f09 MC/Mach-O: As Kevin pointed out, 'Address' is really an offset -- rename to clarify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 23:53:07 +00:00
Daniel Dunbar
ef4591ef79 MC/Mach-O: Fix a crash on invalid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103525 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 23:53:05 +00:00
Daniel Dunbar
651804c3d6 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 17:22:50 +00:00
Daniel Dunbar
a8251fac10 MC/Mach-O: Fix another mismatch with .weak_definition, we shouldn't use a
scattered relocation entry with a .weak_definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-10 23:15:20 +00:00
Daniel Dunbar
e9460ec057 MC/Mach-O: Factor out doesSymbolRequireExternRelocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103442 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-10 23:15:13 +00:00
Daniel Dunbar
071f73db4a MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-10 22:45:09 +00:00
Nathan Jeffords
72e57f9441 test commit, added a comment to MCSectionCOFF::PrintSwitchToSection function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-09 05:49:00 +00:00
Chris Lattner
b54b9ddaaf break coff symbol definition stuff out into proper MCStreamer callbacks,
patch by Nathan Jeffords!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103346 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08 19:54:22 +00:00
Chris Lattner
6e5ce287b0 add COFF support for COMDAT sections, patch by Nathan Jeffords!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 21:49:09 +00:00
Kevin Enderby
a6eeb6e226 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103302 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 21:44:23 +00:00
Ted Kremenek
d51409ae9e Update CMake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 17:29:48 +00:00
Chris Lattner
eb40a0fd98 switch MCSectionCOFF from a syntactic to semantic representation,
patch by Peter Housel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103267 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 17:17:41 +00:00
Daniel Dunbar
5fe03c023c 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 14:46:38 +00:00
Chris Lattner
851f87c6c9 fix rdar://7946934 - in some limited cases, the assembler should
allow $ at the start of a symbol name.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103137 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:51:28 +00:00
Daniel Dunbar
2d7fd61e94 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:01:05 +00:00
Daniel Dunbar
c304718fd8 MC: Reject attempts to define a variable symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:01:00 +00:00
Daniel Dunbar
8d627d3153 MC: Make setVariableValue check the redefinition condition a bit more strongly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103110 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:00:56 +00:00
Daniel Dunbar
08a408a4b3 MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103095 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 17:41:00 +00:00
Daniel Dunbar
ae7fb0b03e MC/Mach-O/x86_64: Relocations in debug sections should use local relocations
when possible.
 - <rdar://problem/7934873>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 17:22:39 +00:00
Daniel Dunbar
31e8e1d085 llvm-mc: Fix case were we would skip a line in the .s file after an instruction
match failure.

Also, fixes a few memory leak FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102986 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04 00:33:07 +00:00
Mon P Wang
b9a01bcf48 Add support for assemblers that don't support periods in a name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 04:00:56 +00:00
Chris Lattner
7834facff9 refactor .if handling code a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101659 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 18:14:27 +00:00
Chris Lattner
d305035155 implement mc asmparser support for '.', which gets the
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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14 04:40:28 +00:00
Chris Lattner
74aae4726a move elf section uniquing to MCContext. Along the way
merge XCore's section into MCSectionELF


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100812 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 21:26:26 +00:00
Chris Lattner
f0559e4b24 move macho section uniquing from MCParser and TLOF to MCContext where
the compiler and asmparser now unique to the same sections.  This fixes
rdar://7835021.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 20:30:37 +00:00
Benjamin Kramer
454c4ce479 Various MSVC warning fixes about truncated 64 bit shifts and const pointers passed to free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 15:25:57 +00:00
Chris Lattner
75361b69f3 rename llvm::llvm_report_error -> llvm::report_fatal_error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07 22:58:41 +00:00
Chris Lattner
79180e2ef5 Give AsmParser an option to control whether it finalizes
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 23:15:42 +00:00
Chris Lattner
3d22513611 eliminate the magic AbsoluteDebugSectionOffsets MAI hook,
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100367 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 23:22:29 +00:00
Chris Lattner
0887fa0b8c isAbsoluteEHSectionOffsets always returns false, eliminate it
and substitute false at the one call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 21:29:44 +00:00
Chris Lattner
d374087be5 fix an ugly wart in the MCInstPrinter api where the
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 05:04:31 +00:00
Chris Lattner
58bc4dd4a9 add a twine form of MCStreamer::EmitRawText, and mc'ize
a few more things in AsmPrinter.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-03 22:12:35 +00:00
Chris Lattner
d5928dcd78 allow attaching comments to raw text.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-03 22:06:56 +00:00
Chris Lattner
3580dea910 add <cstdlib> header for abort() on linux builders.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-03 21:48:59 +00:00
Chris Lattner
91bead7905 add a new EmitInlineAsm function to asmprinter to handle inline asm.
If we have an MCAsmStreamer, we continue to emit asm textually, 
otherwise we (currently) emit an error to errs and ignore it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-03 21:35:55 +00:00
Chris Lattner
9b97a73ded Rip out the 'is temporary' nonsense from the MCContext interface to
create symbols.  It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 18:10:53 +00:00
Daniel Dunbar
1de558b71f MC/Mach-O/x86_64: Support @GOTPCREL on symbols, even for non-PCrel relocations!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99853 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 23:56:40 +00:00
Daniel Dunbar
ac2884a717 llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 22:49:09 +00:00
Daniel Dunbar
0cc8bd4861 MC: Stop restarting layout on every relaxation.
- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.

On the .s I am tuning against (combine.s from 403.gcc):
--
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
5,10c5,10
<    1728 assembler - Number of assembler layout and relaxation steps
<    7707 assembler - Number of emitted assembler fragments
<  120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
<    1727 assembler - Number of relaxed instructions
< 6723845 mcexpr    - Number of MCExpr evaluations
---
>      3 assembler - Number of assembler layout and relaxation steps
>   7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
>  14796 assembler - Number of evaluated fixups
>   1727 assembler - Number of relaxed instructions
>  67889 mcexpr    - Number of MCExpr evaluations
--
Feel free to LOL at the -before numbers, if you like.

I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 19:35:56 +00:00
Daniel Dunbar
f476b00f51 MC: Simplify main section layout process by moving alignment into LayoutSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:42 +00:00
Daniel Dunbar
be644a38c0 MC: Sink Section address assignment into LayoutSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:38 +00:00
Daniel Dunbar
8fb040308c MC/Mach-O: Switch to MCSectionData::getOrdinal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 08:08:54 +00:00
Daniel Dunbar
5a6e97a7e4 MC: Explicity track section and fragment ordinals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:11 +00:00
Daniel Dunbar
b026d64bf2 Fix -Asserts warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:05 +00:00
Daniel Dunbar
5d428511ca MC: Route access to SectionData offset and file size through MCAsmLayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:07 +00:00
Daniel Dunbar
432cd5fd9b MC: Route access to Fragment offset and effective size through MCAsmLayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:02 +00:00
Daniel Dunbar
7c3d45a03e MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:03:24 +00:00
Daniel Dunbar
e9cfd685f5 MC: Fix refacto in MCExpr evaluation, I mistakenly replaced a fragment address with a symbol address.
- This fixes the integrated-as nightly test regressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99466 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:03:17 +00:00