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1244 Commits

Author SHA1 Message Date
Daniel Dunbar
4d74305a1f MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy of 
RecordRelocation with lots of FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:50:05 +00:00
Daniel Dunbar
42b5286627 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:49:56 +00:00
Daniel Dunbar
532c456d48 MC/Mach-O: Split out RecordARMRelocation for now, it is weird enough it isn't 
clear how to keep in the generic path (yet).
 - Will revisit when it actually works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:49:43 +00:00
Matt Beaumont-Gay
e733cf8c27 GCC objects to the two sides of a conditional expression having different enum 
types, but they're just getting converted to unsigned anyway, so cast first
(and ask questions later).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 23:43:23 +00:00
Rafael Espindola
64b4412196 Simplify EvaluateAsAbsolute now that EvaluateAsRelocatableImpl does all 
the folding it can.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122359 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:51:42 +00:00
Rafael Espindola
7a45903bf4 Don't relax org or align. They change size as the relaxation happens, but they 
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:35:18 +00:00
Daniel Dunbar
e1feeb9da4 MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong 
type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:26:45 +00:00
Rafael Espindola
62b83b62f3 Layout one section until no relaxations are done and then move to the next 
section.

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 04:22:09 +00:00
Roman Divacky
d149186e15 Set the value of absolute symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122268 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:14:39 +00:00
Nick Lewycky
476b242fe7 Add missing standard headers. Patch by Joerg Sonnenberger! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:43:38 +00:00
Rafael Espindola
c5b0e44aca Fixed version of 122160 (the previous one would fold undefined symbols). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 04:18:56 +00:00
Rafael Espindola
af0e6ce80f Revert 122160 while I debug it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122165 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 03:22:05 +00:00
Rafael Espindola
f399d9d37b Move all folding to AttemptToFoldSymbolOffsetDifference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 02:15:04 +00:00
Roman Divacky
7529b16410 Add support for lexing single quotes like 'c'. 
This fixed 8615.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 08:56:37 +00:00
Rafael Espindola
3132780a2e Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 06:27:54 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00
Rafael Espindola
3f037ef2f5 Add a FIXME and explain a hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:19:20 +00:00
Rafael Espindola
f705a7ed27 Fix the note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:01:45 +00:00
Rafael Espindola
d076482ab7 Revert 122011, 122012, 122013, 122023 adding back an important optimization. 
I added a note, but suggestions on how to add a test are really welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:57:21 +00:00
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:27:34 +00:00
Owen Anderson
175fb36f10 Thumb's forced-PC-alignment requirement applies to the _total_ displacement, not just to the fragment relative 
portion.  While the fragment boundary is usually already aligned, it is possible for it not to be, which 
would lead to a non-aligned final displacement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 21:49:48 +00:00
Rafael Espindola
31f3578b00 Store and free the TargetObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:01:31 +00:00
Rafael Espindola
6024c97ffa Stub out explicit MCELFObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 17:45:22 +00:00
Rafael Espindola
285b3e5b61 Move createELFObjectWriter to its own header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 16:59:53 +00:00
Rafael Espindola
127a6a47bd Use getFixupKindInfo to implement isFixupKindPCRel, ELF version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 07:28:17 +00:00
Daniel Dunbar
17304b3489 MC/Expr: Implemnt more aggressive folding during symbol evaluation using 
IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:33 +00:00
Daniel Dunbar
b87422778c MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
32c1c5ae5f MC/Mach-O: Implement IsSymbolRefDifferenceFullyResolved. 
- Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
 - Since Darwin 'as' would typically reject things that using this will allow,
   we don't need to worry about compatibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:58 +00:00
Daniel Dunbar
1f3662abba MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook. 
- Currently just has stub implementations for Mach-O, ELF, and COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:54 +00:00
Daniel Dunbar
5d2477cecf MC/Assembler: Strip out object writer arguments, now that it is always available 
-- and remove FIXME asking for the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:59 +00:00
Daniel Dunbar
feb7ba3d9a MC/Assembler: Make the MCObjectWriter available through the lifetime of the 
assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:41 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:06:08 +00:00
Daniel Dunbar
8f714fedba MC/Expr: Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:05:45 +00:00
Daniel Dunbar
2d8e3e741f MC: Remove another dead MCAssembler argument, and update clients. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:35 +00:00
Daniel Dunbar
92c66c7bf9 MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added 
here?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:31 +00:00
Daniel Dunbar
204e3b65eb MC: Simplify (remove unnecessary MCAssembler argument, obsoleted by containment 
in MCAsmLayout).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:28 +00:00
Daniel Dunbar
cdf94e8592 Write => in a more normal form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:22 +00:00
Daniel Dunbar
f2ed62d6bf MC/Expr: Simplify (and add a FIXME). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:20 +00:00
Rafael Espindola
dfe125cc9c "Fix" FDE alignment to match what gas does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 00:28:02 +00:00
Daniel Dunbar
dd18e28c62 MC/Expr: Add a doxyment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 18:36:25 +00:00
Daniel Dunbar
5d05d9769e MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 17:21:02 +00:00
Daniel Dunbar
ae5abd595f MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
aa4b7dd13b MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
7e06af85d1 MC/Mach-O: Use fixup info instead of hard coded list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 15:42:31 +00:00
Daniel Dunbar
2761fc4270 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:20:06 +00:00
Jason W Kim
f13743bb3c 1. ARM/MC/ELF: A few more ELF relocs for .o 
2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
   Test added.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:12:17 +00:00
Daniel Dunbar
745dacc91d MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:05:59 +00:00
Matt Beaumont-Gay
818b5f5dd7 Better fix for opt build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121910 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:14:45 +00:00
Matt Beaumont-Gay
e194b26ffd Fix opt -Werror build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 22:21:20 +00:00
Owen Anderson
d18e011cbb Fix typo in r121875. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 19:24:24 +00:00
Owen Anderson
47dbd429da Implement cleanups suggested by Daniel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 18:48:27 +00:00
Rafael Espindola
2bf6afc277 Relax alignment fragments. 
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).

This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 08:45:53 +00:00
Rafael Espindola
f9a4476173 Patch by David Meyer to avoid a O(N^2) behaviour when relaxing fragments. 
Since we now don't update addresses so early, we might relax a bit more than
we need to. This is simillar to the issue in PR8467.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:39:29 +00:00
Rafael Espindola
b35d56c2fe Generalize an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:12:24 +00:00
Jim Grosbach
4750020788 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:46:57 +00:00
Jason W Kim
3fa4c1dc95 First cut of ARM/MC/ELF PIC relocations. 
Test has fixme, to move to .s -> .o test when AsmParser works better.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:16:07 +00:00
Jim Grosbach
e246717c3a Thumb unconditional branch binary encoding. rdar://8754994 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 18:21:33 +00:00
Rafael Espindola
89b9372605 Fixed version of 121434 with no new memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 07:39:47 +00:00
Rafael Espindola
f7fd4aa261 Revert my previous patch to make the valgrind bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:01:09 +00:00
Rafael Espindola
1c952b9cc9 Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:48:29 +00:00
Rafael Espindola
5fad7a99c0 Use const references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:08:35 +00:00
Owen Anderson
05018c2f28 Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating 
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 20:27:52 +00:00
Jim Grosbach
b492a7c213 Rename CB/CBZ specific fixup accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:50:12 +00:00
Devang Patel
dea914bed9 Add assert to catch an attempt to emit .byte 256 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:26:21 +00:00
Jason W Kim
a0871e7927 ARM/MC/ELF TPsoft is now a proper pseudo inst. 
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)

Also added support for ELF::R_ARM_TLS_IE32



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:14:44 +00:00
Bill Wendling
dff2f7151f Support the "target" encodings for the CB[N]Z instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:01:43 +00:00
Bill Wendling
b8958b031e Add support for loading from a constant pool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121226 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:57:09 +00:00
Jim Grosbach
5be6d2af38 Let target asm backends see assembler flags as they go by. Use that to handle 
thumb vs. arm mode differences in WriteNopData().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:16:55 +00:00
Rafael Espindola
4f4363a490 Layout each section independently. With the testcase in PR8711: 
before:
        4 assembler - Number of assembler layout and relaxation steps
    78563 assembler - Number of emitted assembler fragments
  8693904 assembler - Number of emitted object file bytes
   271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
     5958 assembler - Number of relaxed instructions
  2508361 mcexpr    - Number of MCExpr evaluations

real	0m26.123s
user	0m25.694s
sys	0m0.388s

after:

      4 assembler - Number of assembler layout and relaxation steps
  78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
 271223 assembler - Number of evaluated fixups
 231507 assembler - Number of fragment layouts
   5958 assembler - Number of relaxed instructions
2508361 mcexpr    - Number of MCExpr evaluations

real	0m2.500s
user	0m2.113s
sys	0m0.273s

And yes, the outputs are identical :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:32:26 +00:00
Rafael Espindola
545b77ef50 Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 17:12:32 +00:00
Rafael Espindola
3b3148f864 Fix relocations with weak definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 05:57:28 +00:00
Rafael Espindola
bf60dad984 Fix pcrel relocations that cross sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 03:50:14 +00:00
Rafael Espindola
f10d2be573 Fix a crash reduced from gcc produced assembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121085 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:09:54 +00:00
Rafael Espindola
85f2ecc697 Sorry for such a large commit. The summary is that only MachO cares about the 
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.

This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.

Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.

Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.

The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.

Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 00:27:36 +00:00
Jim Grosbach
662a816e89 Add fixup for Thumb1 BL/BLX instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 23:57:07 +00:00
Rafael Espindola
22373b230a Use references to simplify the code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:30:54 +00:00
Jason W Kim
56a399023a Refactor ELFObjectWriter. 
+ ARM/X86/MBlaze now share a common RecordRelocation
+ ARM/X86/MBlaze arch specific routines are limited to GetRelocType()



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:57:34 +00:00
Rafael Espindola
1dda29bdff use getSymbolOffset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:51:55 +00:00
Rafael Espindola
f96d17b886 Another use of getSymbolOffset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 19:55:05 +00:00
Rafael Espindola
179821ac1f Remove the instruction fragment to data fragment lowering since it was causing 
freed data to be read. I will open a bug to track it being reenabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 19:08:48 +00:00
Rafael Espindola
0bbe0b440e Second try at making direct object emission produce the same results 
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 17:27:56 +00:00
Rafael Espindola
6d86492f5e Revert previous two patches while I try to find out how to make both 
linux and darwin assemblers happy :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 15:35:15 +00:00
Rafael Espindola
2303c9dd69 Add an EmitAbsValue helper method and use it in cases where we want to be sure 
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 14:53:14 +00:00
Rafael Espindola
f8803fe417 Remove the getAddress getter, initialize Ordinal in the constructor and use 
that on the ELF writer to detect a section we created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:48:09 +00:00
Rafael Espindola
f3faf92636 Simplify a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:36:43 +00:00
Rafael Espindola
81d8ea5bd2 Use getSymbolOffset on the COFF writer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:24:04 +00:00
Rafael Espindola
340a7a1c8f Don't use PadSectionToAlignment on windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:03:44 +00:00
Rafael Espindola
ffd902bfb7 Add a getSymbolOffset method and use it in the ELF writer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 02:57:26 +00:00
Rafael Espindola
b4172fa729 Once the layout is done we don't need to keep updating which fragments are 
valid. Addresses will not change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120921 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 22:47:22 +00:00
Rafael Espindola
db74aeadcd Remember the contents of leb and dwarfline fragments when relaxing. This avoids 
having to evaluate the expression again when writing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 21:58:52 +00:00
Rafael Espindola
5d4918dbd1 There are two reasons why we might want to use 
foo = a - b
.long foo
instead of just
.long a - b

First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.

Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 03:21:47 +00:00
Rafael Espindola
767b1be390 Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid 
doing that if the target is darwin10 or newer.

This fixes
*) Direct object emission was producing objects without the workaround on
   darwin9.
*) Assembly printing was producing objects with the workaround on linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 00:31:13 +00:00
Rafael Espindola
a8de83c68a First step in fixing MC. Make it clear that we are avoiding a bug in the 
darwin9 linker, what is needed to avoid it and where to get more information.

Also make the workaround simpler. Just the regular end_sequence we normally
create is more than 4 bytes.

Tested by building cctools and ld64 from darwin9 on a darwin10 system and using
those. I checked that I was able to reproduce the bootstrap failure when
the the workaround was disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 23:36:59 +00:00
Rafael Espindola
2df042cb32 Make EmitIntValue more efficient and more like what we do for leb128. The 
difference is much smaller (about 0.3s) but significant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120787 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 02:54:21 +00:00
Rafael Espindola
660b5fc4d0 Do with uleb the same trick we now do with dwarf line/address advances. This 
avoids creating leb128 fragments and speeds up the test in PR8711 to 33s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 01:19:49 +00:00
Rafael Espindola
32a006e606 Try to resolve symbol differences early, and if successful create a plain 
data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 00:55:40 +00:00
Devang Patel
5113cdbfff It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 00:10:48 +00:00
Devang Patel
ee4854faf3 Use set directive for StartMinusEndExpr. 
This is a fix for llvm-gcc-i386-darwin9 buildbot failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 21:32:30 +00:00
Rafael Espindola
76507f14ed Add a fast path to EvaluateSymbolicAdd. This avoids computing symbol addresses 
which then avoids running EnsureValid.
This cuts the assembly time of the testcase in PR8711 from 2:50 minutes to 1
minute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 07:53:12 +00:00
Rafael Espindola
e23930543c Move EmitValueToOffset to the ObjectStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 05:59:38 +00:00
Rafael Espindola
dedb045c32 Add EmitInstToFragment to the generic object streamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 05:44:06 +00:00
Rafael Espindola
6db8a9f3fa The sections that the ELF object writer has to create are very simple and 
contain only data. Handle them specially instead of using AddSectionToTheEnd.
This moves a hack from the generic assembler to the elf writer. It is also
a bit faster and should make other improvements easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120683 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 03:09:06 +00:00
Devang Patel
6a13ddbd9b If tehre are not any line entry then do not try to emit .debug_line section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120637 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 01:17:51 +00:00
Jim Grosbach
dff84b0325 Add support for binary encoding of ARM 'adr' instructions referencing constant 
pool entries (LEApcrel pseudo). Ongoing saga of rdar://8542291.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-02 00:28:45 +00:00
Rafael Espindola
6566e0a55e Remove unused argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 22:48:11 +00:00
Rafael Espindola
9f44724be0 Rename temporary symbols if they conflict with artificial symbols created 
by the assembler. This was blocking parsing any large .s produced by clang for
example.

Fixes PR8596.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 20:46:11 +00:00
Owen Anderson
9d63d90de5 Add correct encodings for STRD and LDRD, including fixup support. Additionally, update these to unified syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 19:18:46 +00:00
Jim Grosbach
fdbdaaca2c Fix a mised reloc rename spot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 19:02:26 +00:00
Jason W Kim
85fed5e0c5 ARM/MC/ELF relocation "hello world" for movw/movt. 
Lifted adjustFixupValue() from Darwin for sharing w ELF.
Test added
TODO:
  refactor ELFObjectWriter::RecordRelocation more.
  Possibly share more code with Darwin?
  Lots more relocations...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120534 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 02:40:06 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Rafael Espindola
ec0b428398 Make EmitIntValue non virtual. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 23:22:44 +00:00
Rafael Espindola
f7c3b75bc5 Forgot the MCPureStreamer::EmitValue in the previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120270 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 23:13:47 +00:00
Rafael Espindola
6f95023a7f Move EmitValue to MCObjectStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120269 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 23:08:47 +00:00
Rafael Espindola
ea4afa91eb Fixed verson of r120245. 
Factor some duplicated code into MCObjectStreamer::EmitLabel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 17:18:55 +00:00
Rafael Espindola
ba210243ef Revert previous patch while I debug the darwin bootstrap failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120246 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 16:22:59 +00:00
Rafael Espindola
f90a2de72c Factor some duplicated code into MCObjectStreamer::EmitLabel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 15:54:36 +00:00
Rafael Espindola
3e03211625 Avoid code duplication in the many unsupported EmitGPRel32Value implementations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120243 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 15:09:24 +00:00
Rafael Espindola
e04ed7e45f Define generic 1, 2 and 4 byte pc relative relocations. They are common 
and at least the 4 byte one will be needed to implement the .cfi_* directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120240 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-28 14:17:56 +00:00
Daniel Dunbar
90e3e3a429 macho-dump: Add support for dumping relocation entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120216 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-27 13:39:48 +00:00
Daniel Dunbar
590956f24f Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-27 07:39:37 +00:00
Daniel Dunbar
7976b88d9f Reduce nesting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-27 05:18:48 +00:00
Daniel Dunbar
f52788f4e6 MC/Mach-O: Migrate more constants into MachOFormat.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120188 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-27 04:59:14 +00:00
Daniel Dunbar
821ecd7c90 MC/Mach-O: Introduce Object/MachOFormat for describing purely platform / machine 
independent information on the Mach object format, and move some stuff from
MachObjectWriter.cpp there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120186 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-27 04:19:38 +00:00
Rafael Espindola
fd46797d0d Remove the unused TheTarget member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-26 04:24:21 +00:00
Michael J. Spencer
326990f1eb Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-26 04:16:08 +00:00
Rafael Espindola
6b8e4357ec Factor some code to parseSectionFlags and fix the default type of a section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-25 15:32:56 +00:00
Rafael Espindola
25958730df Behave a bit more like gnu as and use the symbol (instead of the section) 
for any relocation to a symbol defined in a tls section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 21:57:39 +00:00
Rafael Espindola
1683fcc823 Relocate with the symbol if the relocation is of kind NTPOFF. 
Patch by David Meyer, I added the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 19:23:50 +00:00
Rafael Espindola
bf8209daf8 Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly 
sets the type of a symbol to STT_TLS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 18:51:21 +00:00
Rafael Espindola
97551276c5 If a symbol is used as tls, mark it as tls even if not declare as so. Probably 
fixes PR8659.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 02:19:40 +00:00
Rafael Espindola
a9d4281cc0 Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer. 
While here, remove unused argument and rename UpdateForSlide to Invalidate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 08:08:33 +00:00
Rafael Espindola
0e11dfc4a6 Reuse data fragments while lowering. Patch by David Meyer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 05:49:35 +00:00
Jason W Kim
1090742689 Fixed some style issues (no _, no spc after !) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 22:05:16 +00:00
Jason W Kim
28ef0a5719 Make the <ARCH>ELFObjectWriter statics private 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:57:00 +00:00
Jason W Kim
ccbe000e09 Fix misplaced statics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:47:05 +00:00
Jason W Kim
858e7506e1 Kill trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:42:07 +00:00
Jason W Kim
4a511f0be2 Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs. 
Next step is to rationally break apart the RecordRelocation()

Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:41:13 +00:00
Rafael Espindola
cdfecc8759 Add basic CFI methods to the streamer interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 14:27:24 +00:00
Rafael Espindola
ad8aaa069c Remove some #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119967 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 11:53:17 +00:00
Wesley Peck
4b04713423 Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 22:06:28 +00:00
Rafael Espindola
12203cc7c3 Handle PCRel relocations with absolute values. Fixes PR8656. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:48:25 +00:00
Kevin Enderby
e8e98d7f2e Added support for the Mach-O .symbol_resolver directive. rdar://8673046 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119816 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 18:39:33 +00:00
Rafael Espindola
17fd7bda5a Add a MCLineSectionOrder vector so that we produce the line tables in a 
deterministic order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119795 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 07:41:23 +00:00
Rafael Espindola
b651a96ef2 Add an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 04:55:36 +00:00
Rafael Espindola
a4b23ffced Fix llvm-gcc boostrap on OS X by avoiding printing sleb and uleb when 
possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119785 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 04:10:13 +00:00
Rafael Espindola
195a0ce484 Change some methods in MCDwarf.cpp to be able to handle an arbitrary 
MCStreamer instead of just MCObjectStreamer. Address changes cannot
be as efficient as we have to use DW_LNE_set_addres, but at least
most of the logic is shared.

This will be used so that, with CodeGen still using EmitDwarfLocDirective,
llvm-gcc is able to produce debug_line sections without needing an
assembler that supports .loc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 02:26:16 +00:00
Rafael Espindola
5c0556341e Change CodeGen to use .loc directives. This produces a lot more readable output 
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 02:04:25 +00:00
Rafael Espindola
f2dc4aa562 make isVirtualSection a virtual method on MCSection. Chris' suggestion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 20:03:54 +00:00
Jim Grosbach
4d08863108 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119542 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 19:30:11 +00:00
Rafael Espindola
435279b1a6 Add support for .int. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 16:24:40 +00:00
Rafael Espindola
110f22aae8 Add support for .2byte, .4byte and .8byte. 
Fixes PR8631.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 16:15:42 +00:00
Daniel Dunbar
abc756216d MC-JIT: Stub out "pure" streamer. 
- No immediate use, but maybe someone feels like hacking on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 16:06:47 +00:00
Rafael Espindola
af6b580875 Add .loc methods to the streamer. 
Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119384 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 21:20:32 +00:00
Rafael Espindola
1fdfbc47d8 Parse and ignore some .cfi_* directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119362 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 18:34:07 +00:00
Rafael Espindola
2c92085034 A bit more of gnu as compatibility when handling relocations with aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119328 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 04:11:46 +00:00
Benjamin Kramer
3285877131 Fix compiler warnigns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119175 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 19:20:50 +00:00
Rafael Espindola
94ed5fca3f Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original 
variable if recursing fails to simplify it.

Factor AliasedSymbol to be a method of MCSymbol.

Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.

Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.

Nothing else is using MCTargetExpr, but keep it for now.

Now that the ELF writer sees relocations with aliases, handle

    .weak    foo2
foo2:
    .weak    bar2
    .set    bar2,foo2
    .quad    bar2

the same way gas does and produce a relocation with bar2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 16:33:49 +00:00
Jason W Kim
d3443e99e4 Dovetail with Dan Dunbar's rework of ELFObjectWriter. 
Added 2 new subclasses - X86ELFObjectWriter and ARMELFObectWriter.
ARM and X86 require different code for RecordRelocation(), possibly others.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 16:18:39 +00:00
Rafael Espindola
db9835d089 Fix PR8565. 
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 14:40:36 +00:00
Chris Lattner
3170a3bc04 correct the fixup comment printer to work on big endian platforms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 05:56:19 +00:00
Chris Lattner
1e61e69d40 add targetoperand flags for jump tables, constant pool and block address 
nodes to indicate when ha16/lo16 modifiers should be used.  This lets
us pass PowerPC/indirectbr.ll.

The one annoying thing about this patch is that the MCSymbolExpr isn't
expressive enough to represent ha16(label1-label2) which we need on
PowerPC.  I have a terrible hack in the meantime, but this will have
to be revisited at some point.

Last major conversion item left is global variable references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 02:46:57 +00:00
Rafael Espindola
1f52dfe69e Move the logic to decide with which symbol we produce a relocation (if any) to 
a central location. This also makes us a bit more compatible with gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 23:53:26 +00:00
Chris Lattner
6135a96792 reimplement ppc asmprinter "toc" handling to use a VariantKind 
on the operand, required for .o file writing and fixing 
the PowerPC/mult-alt-generic-powerpc64.ll failure with the new
instprinter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119087 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 22:22:59 +00:00
Rafael Espindola
55d02f3a13 Fix another case of a .comm directive without a corresponding .type 
directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:11:16 +00:00
Rafael Espindola
765fb1a446 Fix the type of a symbol created with .comm and no corresponding .type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 19:40:55 +00:00
Rafael Espindola
1f4f9e3d35 Handle a peculiar comdat case: Creating a section with an undefined 
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 04:17:37 +00:00
Rafael Espindola
ab4a7afe98 Simplify getSymbolIndexInSymbolTable by setting the actual index of 
the symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119022 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 03:12:24 +00:00
Rafael Espindola
7e528a1724 Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 01:34:31 +00:00
Daniel Dunbar
115a3dd066 MC: Simplify Mach-O and ELF object writer implementations. 
- What was I thinking?????

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 07:33:40 +00:00
Rafael Espindola
e9c0ff2a76 Fix warning and add support for printing gnu_unique_object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 04:55:06 +00:00
Rafael Espindola
e13a0ff8ac Parse and record the gnu_unique_object type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 04:51:02 +00:00
Rafael Espindola
c50a0fd7cb Parse and remember discriminators in .loc line. I try to output them with 
another patch.
This lets us parse a bit more of the gcc 4.5 output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 03:18:27 +00:00
Rafael Espindola
64185cc609 Fix the encoding of negative line deltas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 01:06:27 +00:00
Benjamin Kramer
1261a2ff99 MCELF: Copy the symbol name only if we're going to modify it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 19:26:04 +00:00
Rafael Espindola
bac0ad9eda Remove what looks like dead code in the production of debug lines. 
We only produce debug line information if we have seen a line directive, so
this code is dead. Also, if we want to be bug by bug compatible with
gas and sometimes produce "empty" .debug_line sections, this will
match the content produced by gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:41:26 +00:00
Rafael Espindola
d4a352609f gnu as support both % and @ before types, do the same. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 15:47:08 +00:00
Jim Grosbach
3c3849297b Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118831 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:16:23 +00:00
Rafael Espindola
e1a2587ee2 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:04:55 +00:00
Rafael Espindola
2ff9e83a82 Initial comdat implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:13:52 +00:00
Rafael Espindola
9302bd664d Make AliasedSymbol able to handle MCTargetExpr. They can get here if 
a weakref is used with a VariantKind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:24:43 +00:00
Rafael Espindola
03f1b74aed Fix the symbol index of weak references. Also make RecordRelocation a bit 
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:48:11 +00:00
Rafael Espindola
3f2d13c98e Remove some explicit arguments to getELFSection. This is 
a leftover from the removal of isExplicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 03:40:25 +00:00
Rafael Espindola
c87a94a942 Factor some code into WriteSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:36:59 +00:00
Rafael Espindola
1d739a010d Update the section index map after we add the medatada sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:34:07 +00:00
Rafael Espindola
4beee3d06b Use SectionIndexMap in WriteSymbolTable to make it a little less brittle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:16:43 +00:00
Rafael Espindola
bab2a80525 Factor some code into ComputeIndexMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:05 +00:00
Rafael Espindola
af3d38f70e Change the String<size> methods to take a fragment instead of a buffer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:02:59 +00:00
Rafael Espindola
4283f4b81e Use MCSectionELF in places we know we have an ELF section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:05:07 +00:00
Jim Grosbach
2c4d5125c7 Update ARMConstantPoolValue to not use a modifier string. Use an explicit 
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 03:26:07 +00:00
Rafael Espindola
34be396a12 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:42:07 +00:00
Rafael Espindola
037b5be15a Revert previous patch. Missed a case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:54:38 +00:00
Rafael Espindola
e61a1ac595 Remove IsExplicit. It was always false. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:37:44 +00:00
Daniel Dunbar
603abd5619 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 17:53:02 +00:00
Rafael Espindola
4faf7c78fe Set default flags for .rodata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 02:47:59 +00:00
Rafael Espindola
e25e1ef48b Speed up AddSectionToTheEnd. It was walking all fragments in all sections. 
This is really slow with we have 1000s of sections each with a corresponding
relocation section. Also, it is only used by the ELF writer to add
basic data, so there is no need to force a new layout pass.

Should fix PR8563.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-07 15:03:27 +00:00
Rafael Espindola
187d8339db Relax dwarf line fragments. This fixes a crash in the included testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118365 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-07 02:07:12 +00:00
Jim Grosbach
ba21957cbd Add '.code 32' assembler directive to MC streamers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-05 22:40:09 +00:00
Jim Grosbach
ce79299f78 MC'ize the '.code 16' and '.thumb_func' ARM directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-05 22:08:08 +00:00
Benjamin Kramer
f79856986d Put class into an anonymous namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-05 19:56:38 +00:00
Jim Grosbach
c9d1439051 Allow targets to specify the MachO CPUType/CPUSubtype information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-05 18:48:58 +00:00
Jim Grosbach
41ed3ca19d syntaxunified directive is a no-op for MachO writing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118287 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-05 18:47:32 +00:00
Rafael Espindola
7387345016 Add 118023 back, but with proper spelling for .uleb128/.sleb128. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 18:17:08 +00:00
Rafael Espindola
187ce544b2 Do relaxations with FT_Org fragments. Fixes the FIXME: 
// FIXME: We should compute this sooner, we don't want to recurse here, and
    // we would like to be more functional.

In MCAssembler::ComputeFragmentSize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-02 21:38:23 +00:00
Rafael Espindola
3ff57094a7 Add support for expressions in .sleb/.uleb directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-02 17:22:24 +00:00
Rafael Espindola
c70a1d985a Write the line info to .debug_line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 17:07:14 +00:00
Rafael Espindola
f89671d994 Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117925 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 16:27:31 +00:00
Rafael Espindola
cc3acee7b3 Add support for .value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117922 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 15:29:07 +00:00
Rafael Espindola
484291c273 Implement .weakref. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117911 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 14:28:48 +00:00
Rafael Espindola
7be2c33193 Add support for files with more than 65280 sections. No testcase since 
it would be a bit too big :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-31 00:16:26 +00:00
Rafael Espindola
d179886f05 Be more strict on when we produce an undefined reference. In gas a file with 
just

.type   foo,@object

will produce an undefined reference to foo. On the other hand, a file with
just

.weakref bar, foo

will not. It is somewhat hard to support both in MC since both statements
should create the symbols. It should be possible if we really need to by
adding to the flags, but hopefully that is not necessary.

With this patch we do not produce a undefined reference in any of those cases.
The assembly file needs an actual use for the undefined reference to be
present.

This is in preparation for a patch implementing .weakref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 23:09:31 +00:00
Rafael Espindola
f4b0f3e616 Improvements to .section parsing: 
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G

We ignore the G arguments and flag for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 21:33:33 +00:00
Rafael Espindola
787c33718d Add support for the .string directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:02:27 +00:00
Rafael Espindola
1973d43792 Defined weak symbols should have non-zero value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:39:57 +00:00
Rafael Espindola
29129728f1 Fix relocations with renamed symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:08:03 +00:00
Rafael Espindola
f571f9a8fe Aliases defined with .symver should copy the binding of the symbols they alias. 
Move the existing patching for undefined symbols so that all the patching
is done in the same function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 18:33:03 +00:00
Roman Divacky
f9d1752104 Use the IDVal directly as there's no need to convert to std::string. 
Pointed out by Chris!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 16:57:58 +00:00
Roman Divacky
50e7a78709 Implement .equ directive as a synonym to .set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 16:22:58 +00:00
Rafael Espindola
aa8f1f0135 Implement R_X86_64_DTPOFF32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:11:03 +00:00
Rafael Espindola
b4d1721eff Implement TLSLD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:02:40 +00:00
Rafael Espindola
0cf15d61b7 Implement DTPOFF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:48:59 +00:00
Rafael Espindola
a264f72d3f Implement TLSLDM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117544 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:37:09 +00:00
Rafael Espindola
a0a2f8734c Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117543 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:22:44 +00:00
Rafael Espindola
3cede2d0b2 Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117494 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 21:23:52 +00:00
Rafael Espindola
bc82d8b84f Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 20:28:07 +00:00
Benjamin Kramer
07ee63283c Replace pointer arithmetic with StringRef::substr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 19:53:52 +00:00
Rafael Espindola
4fa3478fc2 Set default type and flags for .init and .fini. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 18:45:20 +00:00
Rafael Espindola
83ff4d2b0d Produce an error for an invalid use of .symver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 17:56:18 +00:00
Rafael Espindola
bf052ac5d1 Symbols defined as the difference of other two end up in the ABS section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 16:04:30 +00:00
Rafael Espindola
8818213247 Add support for the .symver directive. This is really ugly, but most of it is 
contained in the ELF object writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 15:18:17 +00:00
Rafael Espindola
a6866969ba Move more logic to isInSymtab and simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 14:44:52 +00:00
Rafael Espindola
61e3b91da7 Add support for .ident. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-26 19:35:47 +00:00
Daniel Dunbar
b1e0f76352 MC/AsmParser: Fix relative precedence of {+,-} and comparison ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117299 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 20:18:56 +00:00
Daniel Dunbar
bdf90d679b MC/AsmLexer: Fix bug in source location for Slash token. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 20:18:53 +00:00
Rafael Espindola
cecbc3d282 Add support for emitting ARM file attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117275 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 17:50:35 +00:00
Rafael Espindola
24ba4f7f5f Add X86::reloc_global_offset_table and use it to have a single place where 
we check for _GLOBAL_OFFSET_TABLE_.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117241 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 17:35:42 +00:00
Benjamin Kramer
a3ac427507 Make some symbols static, move classes into anonymous namespaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-22 17:35:07 +00:00
Wesley Peck
eecb858ca8 Making the e_machine configurable by the target backend in ELFObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117099 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-22 15:52:49 +00:00
Jim Grosbach
fe40f9551c Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 22:04:05 +00:00
Michael J. Spencer
ef0401ad66 Fix Warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 20:49:38 +00:00
Rafael Espindola
8c8bc05a38 Do not recurse into symbol refs that have a variant kind. This prevents us 
from losing the variant when producing a relocation on an alias.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 18:00:20 +00:00
Chandler Carruth
1cd9708f5c Remove remaining uses of ATTRIBUTE_UNUSED on variables, and delete three 
#includes in the process.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 08:27:02 +00:00
Rafael Espindola
bd70118f16 Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 19:31:37 +00:00
Bill Wendling
cf2561d111 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 10:18:23 +00:00
Chandler Carruth
b5a2d3f8e3 Move the definition of this to the source file to anchor the vtable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116779 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 00:37:30 +00:00
Rafael Espindola
eada304793 Implement R_386_GOT32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:47:21 +00:00
Rafael Espindola
ce2d3c5775 Relocate with .bss instead of using the symbol. Matches gas behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:25:33 +00:00
Rafael Espindola
24dc9ecdc5 Reenable assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 19:33:01 +00:00
Rafael Espindola
aa85c21633 Produce ELF::R_386_GOTPC relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:36:12 +00:00
Rafael Espindola
9baee3b3a3 Make the bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:03:28 +00:00
Rafael Espindola
9edab3a9e1 Produce a R_386_PLT32 when needed. Moved the default cases of switches to the 
start for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 16:58:03 +00:00
Rafael Espindola
c97f80efc8 Handle GOTOFF correctly on i386. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 16:38:04 +00:00
Benjamin Kramer
24f1206c7d Fix a typo and silence unused variable warnings in -Asserts build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116685 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-17 07:38:40 +00:00
Rafael Espindola
f230df9af4 Add a MCObjectFormat class so that code common to all targets that use a 
single object format can be shared.

This also adds support for

mov zed+(bar-foo), %eax

on ELF and COFF targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116675 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 18:23:53 +00:00
Michael J. Spencer
4cee2890a6 MC-COFF: Add support for default-null weak externals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116666 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 08:25:57 +00:00
Daniel Dunbar
138abae2a2 MC/AsmParser: Report .stabs directive as unsupported. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116659 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 04:56:42 +00:00
Rafael Espindola
de89b010b0 Refactor alias handling to AliasedSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-15 18:25:33 +00:00
Rafael Espindola
5df0b65e8f Refactor code a bit and avoid creating unnecessary entries in the string 
map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-15 15:39:06 +00:00
Rafael Espindola
a0949b50dc Remove some code duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-14 16:34:44 +00:00
Michael J. Spencer
28ca86aa19 MC-COFF: Fix .bss section size. Fixes PR8335. Patch by NAKAMUTA Takumi! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 16:04:45 +00:00
Michael J. Spencer
192d136750 MC-COFF: Implement InitSections. Fixes PR8335. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 15:44:27 +00:00
Michael J. Spencer
7d4900416a MC-COFF: Add COFFAsmParser. Completes PR8343. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 11:01:07 +00:00
Michael J. Spencer
c0c8df3cea Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 11:00:50 +00:00
Michael J. Spencer
d47f4a9c98 MC-COFF: Assert on non-coff sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 11:00:37 +00:00
Michael J. Spencer
e90ea139f4 MC: Move ParseDirectiveELFType into ELFAsmParser. COFF uses .type for something else. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 03:47:55 +00:00
Michael J. Spencer
b225adee29 MC-COFF: Handle relaxation in COFF better. Fixes PR8321. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:55:40 +00:00
NAKAMURA Takumi
86c3647ddf Minor cosmetic change: fix DOSish \r\n. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115910 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 07:21:04 +00:00
Michael J. Spencer
b5814a3c15 MC-COFF: Fix symbol aliases. Fixes PR8251. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115909 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 06:29:33 +00:00
Rafael Espindola
d8e0bfe07a Another case of 256 sections not being enough :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 22:28:19 +00:00
Rafael Espindola
152c1061e0 Get binding and visibility info from the the alias, but Type from the symbol 
being aliased.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 21:02:29 +00:00
Michael J. Spencer
345ed9806a MC: Add missing forward in MCLoggingStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115830 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 20:36:47 +00:00
Rafael Espindola
153666c038 If a symbol is global, reloc against it even if it is in a mergeable section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 19:27:21 +00:00
Rafael Espindola
3223f19ff0 Make sure weak symbols are listed after the local ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115795 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 16:47:31 +00:00
Rafael Espindola
8cecf253e4 Correctly handle GOTPCREL relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 16:23:36 +00:00
Rafael Espindola
3729d0052b Use a relocation against the symbol if it is a PLT and the symbol is in another 
section. Common because of linkonce sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 23:57:26 +00:00
Rafael Espindola
01f9ea35a7 Implement more alias cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 22:26:43 +00:00
Rafael Espindola
f5c347dfc2 256 sections should be enough for anyone... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 21:20:07 +00:00
Rafael Espindola
62fed8bd38 Don't crash in a strange .size directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115684 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 21:02:45 +00:00
Michael J. Spencer
ea1104a4c3 Fix Punctuation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115657 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 19:48:12 +00:00
Michael J. Spencer
eb6e77f8cc MC-COFF: Fix (PR8278) temporary symbol relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 19:48:03 +00:00
Rafael Espindola
e452b17130 Add support for a fill value in the .zero directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 19:42:57 +00:00
Rafael Espindola
737cd213e3 Implement a simple alias case and refactor the code a bit so that the 
isInSymtab and isLocal logic in the two loops don't get easily out of sync.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 18:01:23 +00:00
Rafael Espindola
5c77c16f31 Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 15:48:37 +00:00
Rafael Espindola
8f413fa9c0 On ELF we need to know which symbols are used in relocations to decide if 
they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115619 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 15:11:03 +00:00
Kevin Enderby
3f55c24df9 Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel! 
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
   named.  Since it is just a predicate and isn't actually changing any state.

2) Added a missing return in the comments for setCurrentDwarfLoc() in 
   include/llvm/MC/MCContext.h for fix formatting.

3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
   state.

4) Simplified the last test in isValidDwarfFileNumber() to just a one line
   boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 20:17:24 +00:00
Rafael Espindola
607d1f6d32 Implement ELF::R_X86_64_GOTPCREL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 19:51:39 +00:00
Rafael Espindola
cebdc01d66 Move isFixupKindX86PCRel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115545 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 19:46:28 +00:00
Rafael Espindola
92bf6684f6 Produce a R_X86_64_PLT32 when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115541 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 19:04:13 +00:00
Rafael Espindola
28f9ac8101 Produce a R_X86_64_GOT32 when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115537 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 18:44:25 +00:00
Jan Wen Voung
083cf1574f Add hook in MCSection to decide when to use "optimized nops", for each 
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 17:32:41 +00:00
Rafael Espindola
55fb102130 Include the section address in the computation of the relocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 15:59:01 +00:00
Rafael Espindola
01263d35d4 Correctly compute the relocation when it is not in the first fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 15:28:43 +00:00
Rafael Espindola
9d8b7555cd Implement a very basic PIC case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-03 00:46:57 +00:00
Kevin Enderby
8c9aa922a9 This adds a Darwin x86_64 relocation encoding for a subtraction expression 
where both symbols are "local", that is non-external symbols, and there is
no "base" for the symbols used in the expression, that is the section has
no non-temporary symbols.  This case looks like this:

% cat local_reloc_A-B.s
	.long 0
LB:	.long 1
	.long LA - LB - 4
	.long 2
LA:	.long 3

which llvm-mc will not encode without this patch, generates a "unsupported
local relocations in difference" error, but the Darwin assembler will
encode with relocation entries like this:

% otool -rv a.out l.out 
a.out:
Relocation information (__TEXT,__text) 2 entries
address  pcrel length extern type    scattered symbolnum/value
00000008 False long   False  SUB     False     1 (__TEXT,__text)
00000008 False long   False  UNSIGND False     1 (__TEXT,__text)

which is very similar to what is encoded when the symbols don't have the
leading 'L' and they are not temporary symbols.  Which llvm-mc and the
Darwin assembler will encoded like this:

Relocation information (__TEXT,__text) 2 entries
address  pcrel length extern type    scattered symbolnum/value
00000008 False long   True   SUB     False     B
00000008 False long   True   UNSIGND False     A

This is the missing relocation encoding needed to allow the Mach-O x86
Dwarf file and line table to be emitted.  So this patch also removes the
TODO from the if() statement in MCMachOStreamer::Finish() that didn't 
call MCDwarfFileTable::Emit() for 64-bit targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-02 00:13:41 +00:00
Rafael Espindola
7eae36b38b Factor some logic into ShouldRelocOnSymbol. This simplifies the code and 
fixes some cases where we were producing relocations with at symbol that
should use a section instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:18:35 +00:00
Kevin Enderby
c095793b4a This is the last major patch to implement support for the .loc directive 
and output the dwarf line number tables.  This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects.  This contains all the details to encode the line and
address deltas into the dwarf line table.

To do this an MCDwarfLineAddrFragment has been added.

Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.

There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
   MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.

And one call call to be made from an MCObjectStreamer Finish() method:
   MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.

This appears to now be correct for 32-bit targets, at least x86.  But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on.  So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:52:03 +00:00
Kevin Enderby
b5a3ec17a4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:42:21 +00:00
Chandler Carruth
5c0d472b6e Silence a GCC warning about not handling all flags in this switch, we 
specifically assert on unexpected flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 10:59:51 +00:00
Jan Wen Voung
186e7a0fb1 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 05:59:22 +00:00
Rafael Espindola
a8c02c3bdd 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 03:11:42 +00:00
Jason W Kim
afd1cc2578 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile() 
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:45:56 +00:00