RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-21 03:53:04 +02:00
Code Issues Projects Releases Wiki Activity
73,622 Commits 4 Branches 5 Tags 704 MiB
004cce78e1
Commit Graph

83 Commits

Author SHA1 Message Date
Roman Divacky
0a62f9906f Make EmitIntValue() work properly on big-endian targets. 
llvm-svn: 132715
 2011-06-07 17:31:02 +00:00
Charles Davis
5ebea6fc5f Start keeping track of where the various unwind instructions are in the prolog. 
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.

llvm-svn: 132177
 2011-05-27 03:25:01 +00:00
Charles Davis
823e8a90ce My attempt at fixing the leak reported by the valgrind buildbots. Valgrind will 
still report leaks, but they're spurious now. Valgrind cannot peer into
std::vector objects--or any dynamic array, for that matter--because it doesn't
know how big the array is.

llvm-svn: 132174
 2011-05-27 02:01:08 +00:00
Charles Davis
32b363ded1 Fix inverted conditional in SaveReg and SaveXMM. Err when the frame pointer is 
already defined, and err when the PushMachFrame operation isn't the first
operation (if specified at all).

llvm-svn: 132173
 2011-05-27 01:42:17 +00:00
Charles Davis
0021487a8e Test .seh_startchained and .seh_endchained parsing. 
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.

llvm-svn: 132106
 2011-05-26 02:45:47 +00:00
Charles Davis
d943eb05ed Test basic SEH directive-parsing functionality. Fix a latent bug exposed by 
this test.

llvm-svn: 132004
 2011-05-24 21:22:53 +00:00
Charles Davis
a4187a96c9 Add methods to parse the SEH directives to the COFFAsmParser. Implement some 
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

llvm-svn: 131866
 2011-05-22 21:12:15 +00:00
Charles Davis
d74119d139 Implement emission of all Win64 exception tables. Make the COFF streamer emit 
these tables.

llvm-svn: 131833
 2011-05-22 04:15:07 +00:00
Charles Davis
a537e589c9 Don't allow unaligned offsets and sizes in the Win64 EH directives. 
Also, fix threshold for 'Big' register saves.

llvm-svn: 131830
 2011-05-22 00:56:20 +00:00
Charles Davis
525855fe48 Don't allow .seh_handler and .seh_handlerdata directives inside chained 
unwind areas.

llvm-svn: 131795
 2011-05-21 17:36:25 +00:00
Charles Davis
7f9c007dce A handler for a function in the Win64 EH scheme can be both an unwind handler 
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.

llvm-svn: 131791
 2011-05-21 15:57:49 +00:00
Charles Davis
520128d52f Set the "LastFrameInst" field when streaming a .seh_setframe directive. This 
is needed for an upcoming patch.

llvm-svn: 131772
 2011-05-21 00:09:04 +00:00
Charles Davis
5e5cc95580 "Implement" the HandlerData Win64 EH method in the base MCStreamer. 
There's really nothing to implement. All this really does is swap to a
pseudo-section that later gets written to the unwind info struct. That
needs to be implemented in the object streamers.

llvm-svn: 131734
 2011-05-20 16:06:22 +00:00
Rafael Espindola
97c81eee80 Looks like OS X assemblers (including MC) don't like 
foo:
bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

llvm-svn: 131687
 2011-05-19 22:05:56 +00:00
Rafael Espindola
c03bb178a0 Misc code refactorings: 
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

llvm-svn: 131683
 2011-05-19 21:40:34 +00:00
Charles Davis
300a470f45 Implement the EndProlog Win64 EH method on the base MCStreamer. 
llvm-svn: 131679
 2011-05-19 21:24:54 +00:00
Charles Davis
925eab3fd7 Implement the Win64 EH prolog instruction methods on the base MCStreamer. 
I had to change the API slightly to avoid overloading issues.

llvm-svn: 131666
 2011-05-19 19:35:55 +00:00
Charles Davis
bb99a68546 Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) Make 
ours compatible with GAS.

In retrospect, I should have emailed binutils about this earlier. Thanks to
Kai Tietz for pointing out that GAS already had SEH directives.

llvm-svn: 131652
 2011-05-19 17:46:39 +00:00
Charles Davis
e6942fd10b Implement the StartChained and EndChained Win64 EH methods on MCStreamer. 
llvm-svn: 131629
 2011-05-19 04:04:13 +00:00
Charles Davis
2940df3099 Implement the StartProc and EndProc Win64 EH methods on the base MCStreamer. 
Based largely on Rafael Espindola's work on CFI. Other methods soon to follow.

llvm-svn: 131623
 2011-05-19 02:49:00 +00:00
Charles Davis
48ea9389dc Add some more Win64 EH directives: 
- StartChained and EndChained delimit a chained unwind area, which can contain
  additional operations to be undone if an exception occurs inside of it.
- UnwindOnly declares that this function doesn't handle any exceptions. If it
  has a handler, it's an unwind handler instead of an exception handler.
- Lsda declares the location and size of the LSDA, which in the Win64 EH
  scheme is kept inside the UNWIND_INFO struct. Windows itself ignores the
  LSDA; it's used by the Language-Specific Handler (the "Personality Function"
  from DWARF).

llvm-svn: 131572
 2011-05-18 20:54:10 +00:00
Charles Davis
81fa5ec5c3 While thinking about how to know where the functions' boundaries are for 
the purposes of the Win64 EH tables, I realized we had no way to tell where
the function ends. (MASM bounds functions with PROC and ENDP keywords.)
Add a directive to delimit the end of the function, and rename the 'frame'
directive to more accurately reflect its duality with the new directive.

llvm-svn: 131522
 2011-05-18 04:47:22 +00:00
Charles Davis
173b0d324a Add a method I forgot in the last commit. Don't worry, this one passed 
self-host :).

llvm-svn: 131421
 2011-05-16 21:13:58 +00:00
Charles Davis
576f65b4b2 Fix copy-pasto. 
llvm-svn: 131384
 2011-05-15 17:28:27 +00:00
Charles Davis
900df11077 Add stub methods to MCStreamer for emitting Win64 exception-handling 
information.

llvm-svn: 131382
 2011-05-15 17:20:01 +00:00
Rafael Espindola
33cc7a8f74 Add CFIStartSections to the asm printer. Add an assert that at least 
one of the sections is created.

llvm-svn: 131124
 2011-05-10 13:39:48 +00:00
Rafael Espindola
b7c942431f Add support for producing .deubg_frame sections. 
llvm-svn: 131121
 2011-05-10 03:54:12 +00:00
Rafael Espindola
3d5f7d1fc1 Factor some code into a new EmitFrames method. 
llvm-svn: 131119
 2011-05-10 03:14:15 +00:00
Rafael Espindola
c5f10dda05 Parsing and plumbing for .cfi_sections. 
llvm-svn: 131117
 2011-05-10 01:10:18 +00:00
Rafael Espindola
2f2c3bf31f Simplify the handling of pcrel relocations on ELF. Now we do the right thing 
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.

This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.

llvm-svn: 130634
 2011-05-01 03:50:49 +00:00
Rafael Espindola
17e6a392af Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr. 
llvm-svn: 130585
 2011-04-30 03:21:04 +00:00
Rafael Espindola
4f9a76ab0b Mark the EH symbol global or weak if the corresponding function is. 
llvm-svn: 130397
 2011-04-28 12:50:37 +00:00
Rafael Espindola
133c684456 Factor a bit of code to MCStreamer::EmitLabel. Keep track of the last 
non private symbol. This will be use for handling

foo:
  .cfi_startproc
  ...

On OS X where we have to create a foo.eh symbol.

llvm-svn: 130305
 2011-04-27 15:21:19 +00:00
Devang Patel
7220c1a021 Reduce clutter in asm output. Do not emit source location as comment for each instruction. 
llvm-svn: 129715
 2011-04-18 20:26:49 +00:00
Rafael Espindola
63f8a9ad72 Be consistent about being virtual and returning void in the cfi methods. 
Implement the ones that were missing in the asm streamer.

llvm-svn: 129413
 2011-04-12 23:59:07 +00:00
Rafael Espindola
9f6146c464 Remove LastOffset from the asm parser. 
llvm-svn: 129378
 2011-04-12 18:53:30 +00:00
Rafael Espindola
5c5bb3e9a6 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset. 
llvm-svn: 129362
 2011-04-12 16:12:03 +00:00
Rafael Espindola
7c4de15c7b Implement .cfi_same_value. 
llvm-svn: 129361
 2011-04-12 15:31:05 +00:00
Anton Korobeynikov
917ca94111 Preliminary support for ARM frame save directives emission via MI flags. 
This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.

llvm-svn: 127101
 2011-03-05 18:43:32 +00:00
Anton Korobeynikov
62e48532b9 Some first rudimentary support for ARM EHABI: print exception table in "text mode". 
llvm-svn: 127099
 2011-03-05 18:43:15 +00:00
Joerg Sonnenberger
2204260330 Use a vector of pairs to implement the section stack, not two 
independent vectors.

llvm-svn: 126099
 2011-02-21 01:07:42 +00:00
Rafael Espindola
b59fdeb3de Add support for pushsection and popsection. Patch by Joerg Sonnenberger. 
llvm-svn: 125629
 2011-02-16 01:08:29 +00:00
Rafael Espindola
ed7b5659d4 Remove second return. 
llvm-svn: 122616
 2010-12-29 02:42:33 +00:00
Rafael Espindola
d51ed1fc6a Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks 
like 6 is a fixed point of that and so the previous tests were OK :-)

llvm-svn: 122614
 2010-12-29 01:42:56 +00:00
Rafael Espindola
257de5c4a2 Implement cfi_def_cfa_register. 
llvm-svn: 122612
 2010-12-29 00:26:06 +00:00
Rafael Espindola
061209eaf3 Initial .cfi_offset implementation. 
llvm-svn: 122611
 2010-12-29 00:09:59 +00:00
Rafael Espindola
3fdd045643 Implement .cfi_remember_state and .cfi_restore_state. 
llvm-svn: 122602
 2010-12-28 18:36:23 +00:00
Rafael Espindola
0552cb0638 Start adding basic support for emitting the call frame instructions. 
llvm-svn: 122590
 2010-12-28 04:15:37 +00:00
Rafael Espindola
12c30aed07 Add support for .cfi_lsda. 
llvm-svn: 122584
 2010-12-27 15:56:22 +00:00
Rafael Espindola
e7e67fce10 Add support for the same encodings of the personality function that gnu as 
supports.

llvm-svn: 122577
 2010-12-27 00:36:05 +00:00