d6860522b2
Don't hardcode the %reg format in the streamer.
...
llvm-svn: 132451
2011-06-02 02:34:55 +00:00
af5f23ee07
Add new -d option to tblgen. It writes a make(1)-style dependency file.
...
llvm-svn: 132395
2011-06-01 13:10:15 +00:00
08600bcf65
Use the dwarf->llvm mapping to print register names in the cfi
...
directives.
Fixes PR9826.
llvm-svn: 132317
2011-05-30 20:20:15 +00:00
03eef62db0
Add a parameter to the Win64 EH section getters to get a section with a
...
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.
Fix up all callers of the affected functions. Make them pass said suffix to
the function.
llvm-svn: 132205
2011-05-27 19:09:24 +00:00
ea5dc3a67b
Assorted fixes for Win64 EH unwind info emission:
...
- Flip order of bitfields. This gets our output matching GAS.
- Handle case where the end of the prolog wasn't specified.
- If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes.
Add a test for the latter two.
llvm-svn: 132188
2011-05-27 15:10:25 +00:00
6d1c4c73a9
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
761313b28d
Add missing break statements. Align UNWIND_INFO and RUNTIME_FUNCTION structs
...
to 4 bytes.
I'm surprised no one caught the missing break statements.
llvm-svn: 132176
2011-05-27 02:43:19 +00:00
a60cd577fd
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
9dcee31aab
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
006e1c39d0
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
2f6ecea19d
Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with
...
them.
I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.
llvm-svn: 132084
2011-05-25 21:43:45 +00:00
828b00c0e1
Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the
...
buggy methods that parse these directives.
llvm-svn: 132045
2011-05-25 04:51:25 +00:00
b0c4f39173
Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another
...
one I found by inspection).
llvm-svn: 132037
2011-05-25 04:08:15 +00:00
fc1e7ce850
Add a test for the .seh_handler directive. Fix problems with the parsing
...
method exposed by the test. While we're at it, simplify the .seh_proc
parsing method.
llvm-svn: 132028
2011-05-25 01:33:42 +00:00
f4ce8fde18
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
7f6176c3f9
Implement the rest of the SEH directive-parsing methods in the COFFAsmParser.
...
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.
Add methods to the TargetAsmInfo struct in support of all this.
llvm-svn: 131992
2011-05-24 20:06:30 +00:00
bae9fee95f
Propagate error correctly in the MC Asm parser for leading '$' expressions.
...
llvm-svn: 131918
2011-05-23 20:36:04 +00:00
d9eafdcfd5
Implement .seh_stackalloc and .seh_pushframe parsing.
...
I haven't implemented any of the ones that take registers yet. The problem is
that for x86-64 the streamer methods expect a native x86 register number (note:
%r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured
out exactly how I want to do that yet.
llvm-svn: 131899
2011-05-23 16:43:09 +00:00
c7250faeb1
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
1d068cc0b0
switch to using a smallvector to avoid allocations for most normal size instructions.
...
llvm-svn: 131837
2011-05-22 04:53:24 +00:00
0388fb0ee2
tidy some things up.
...
llvm-svn: 131836
2011-05-22 04:52:24 +00:00
bc2daa0f93
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
1c8bd5ad7e
Make the COFF streamer emit unwind info when processing a .seh_handlerdata
...
directive.
Implement emission of Win64 EH unwind info.
Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.
llvm-svn: 131832
2011-05-22 03:01:05 +00:00
e636022b4d
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
6879634efd
Don't allow .seh_handler and .seh_handlerdata directives inside chained
...
unwind areas.
llvm-svn: 131795
2011-05-21 17:36:25 +00:00
8e8f59bdfb
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
54254008ba
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
8aded86edb
No reason not to allow defining the CFA as a reg w/ offset zero.
...
llvm-svn: 131760
2011-05-20 21:50:09 +00:00
860b03b5f9
Add missing leading \t when printing .cfi_def_cfa in the asmstreamer.
...
llvm-svn: 131755
2011-05-20 21:22:37 +00:00
1866808384
fixes target address tBL and tBLX and sets relocation type
...
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)
Patch by koan-sin tan.
llvm-svn: 131748
2011-05-20 20:01:01 +00:00
9a115a4bd2
Now that they're implemented, make the Win64 EH MCAsmStreamer methods call
...
super.
llvm-svn: 131743
2011-05-20 18:19:22 +00:00
24b31b6b7d
"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
1edfb17bc2
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
8e129296fe
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
de745ba396
Implement the EndProlog Win64 EH method on the base MCStreamer.
...
llvm-svn: 131679
2011-05-19 21:24:54 +00:00
7e6e8951af
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
74ba2623ce
Reapply 131644 including the missing header changes:
...
Introduce -fatal-assembler-warnings for the obvious purpose
llvm-svn: 131655
2011-05-19 18:00:13 +00:00
3e2f17499e
Revert r131644; it's breaking the build.
...
llvm-svn: 131653
2011-05-19 17:48:09 +00:00
4cd8856704
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
59b523169f
Introduce -fatal-assembler-warnings for the obvious purpose
...
llvm-svn: 131644
2011-05-19 17:27:01 +00:00
b4222589bf
Implement the StartChained and EndChained Win64 EH methods on MCStreamer.
...
llvm-svn: 131629
2011-05-19 04:04:13 +00:00
d991ec4e68
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
27117af772
Remove comments as Chris requested.
...
llvm-svn: 131590
2011-05-18 22:13:51 +00:00
492f87de4e
Fix an obvious typo in r131572.
...
llvm-svn: 131579
2011-05-18 21:29:07 +00:00
77e0610d7c
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
8d9c99042f
Implement the Win64 EH directive methods for the assembly language streamer.
...
GAS has no such directives (not even mingw-w64 GAS has them), so I took
creative license with their names in assembly. I prefixed them all with
"w64_" to avoid namespace collisions, for example. If I discover that GAS
has taken a different approach, I'll change ours to match.
llvm-svn: 131525
2011-05-18 04:58:05 +00:00
384041d0dc
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
2701815ed8
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
94c31fdd31
Add a FIXME reminder to remove ForceARMElfPIC switch.
...
llvm-svn: 131411
2011-05-16 16:35:21 +00:00
e90c1cb221
sets bit 0 of the function address of thumb function in .symtab
...
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)
Patch by Koan-Sin Tan!
llvm-svn: 131406
2011-05-16 16:17:21 +00:00
2f10078ae7
Fix copy-pasto.
...
llvm-svn: 131384
2011-05-15 17:28:27 +00:00
af18d07ed6
Add stub methods to MCStreamer for emitting Win64 exception-handling
...
information.
llvm-svn: 131382
2011-05-15 17:20:01 +00:00
7c6c90b35d
Remove an unused variable and move a couple others inside DEBUG.
...
llvm-svn: 131208
2011-05-11 23:34:51 +00:00
c09e726455
Address the last bit of relocation flag related divergence betweeen
...
LLVM and binutils.
With this patch, there are no functional differences between the .o
produced directly from LLVM versus the .s to .o via GNU as, for relocation tags
at least, for both PIC and non-PIC modes.
Because some non-PIC reloc tags are used (legally) on PIC, so IsPCRel flag is
necessary but not sufficient to determine whether the overall codegen mode is
PIC or not. Why is this necessary? There is an incompatibility of how relocs
are emitted in the .rodata section. Binutils PIC likes to emit certain relocs
as section relative offsets. Non-PIC does not do this.
So I added a hidden switch on the ELFObjectwriter "-arm-elf-force-pic" which
forces the objectwriter to pretend that all relocs are for PIC mode.
Todo: Activate ForceARMElfPIC to true if -relocation-model=pic is selected
on llc.
Todo: There are probably more issues for PIC mode on ARM/MC/ELF...
Todo: Existing tests in MC/ARM/elf-reloc*.ll need to be converted over to .s
tests as well as expanded to cover the gamut.
llvm-svn: 131205
2011-05-11 22:53:06 +00:00
de32fa163f
Avoid a gcc warning.
...
llvm-svn: 131161
2011-05-10 22:28:35 +00:00
99f6735532
On MachO, unlike ELF, there should be no relocation to produce the CIE pointer.
...
llvm-svn: 131149
2011-05-10 20:59:42 +00:00
2fe0ee1ce2
Rename DwarfRequiresRelocationForStmtList to
...
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.
llvm-svn: 131148
2011-05-10 20:35:05 +00:00
d0d2354258
The EH symbols are only needed in eh_frame, not debug_frame.
...
llvm-svn: 131146
2011-05-10 19:51:53 +00:00
27390b4a0e
In a debug_frame the cfi offset is to the start of the debug_frame section!
...
llvm-svn: 131129
2011-05-10 15:20:23 +00:00
ec53aa9485
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
1ecb12fc57
Add support for producing .deubg_frame sections.
...
llvm-svn: 131121
2011-05-10 03:54:12 +00:00
b6444c0401
Small cleanups.
...
llvm-svn: 131120
2011-05-10 03:26:21 +00:00
b6089d6cac
Factor some code into a new EmitFrames method.
...
llvm-svn: 131119
2011-05-10 03:14:15 +00:00
0e130d1d37
Remove unused argument.
...
llvm-svn: 131118
2011-05-10 03:01:39 +00:00
74b101f3e3
Parsing and plumbing for .cfi_sections.
...
llvm-svn: 131117
2011-05-10 01:10:18 +00:00
392445823d
Eliminate an unused line to fix a warning.
...
llvm-svn: 131078
2011-05-08 23:19:04 +00:00
ab39c63538
Don't force relaxation of AdvanceLoc instructions on OS X. gdb is happy with
...
the smaller encoding and this cuts 270336 bytes from a release version of
clang and 1246272 bytes from a debug build.
llvm-svn: 131067
2011-05-08 14:35:21 +00:00
bcabcdcedd
Switch Darwin to the generic CIE/FDE printer.
...
llvm-svn: 131031
2011-05-06 22:29:04 +00:00
a716096677
Dead code elimination.
...
llvm-svn: 130984
2011-05-06 14:56:22 +00:00
a4982bddf3
Don't produce a __debug_frame.
...
I tested both gdb on a bootstrapped clang and and the gdb testsuite on OS X (snow leopard)
and both are happy using __eh_frame.
llvm-svn: 130937
2011-05-05 18:43:39 +00:00
a75589171a
Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
...
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.
While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.
llvm-svn: 130846
2011-05-04 17:44:06 +00:00
f6daf94ab2
MCDwarf: Don't save Twine to local variable, this is almost never safe to do
...
(and should thus never be done).
- Should fix a crash on win32.
llvm-svn: 130793
2011-05-03 21:33:37 +00:00
fc8223670a
Add r130623 back now that ELF has been fixed to work with -fno-dwarf2-cfi-asm.
...
llvm-svn: 130658
2011-05-01 15:44:13 +00:00
750cb61553
GCC uses a different encoding of pointers in the FDE when using
...
-fno-dwarf2-cfi-asm. Implement the same behavior.
llvm-svn: 130637
2011-05-01 04:49:54 +00:00
fd05785324
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
b7c2286055
Revert the previous patch while I figure out how to make llvm-gcc
...
less agressive about disabling cfi on linux :-(
llvm-svn: 130626
2011-04-30 23:03:44 +00:00
5265bc483e
Enable CFI on OS X.
...
Currently the output should be almost identical to the one produced by CodeGen
to make the transition easier.
The only two differences I know of are:
* Some files get an extra advance loc of size 0. This will be fixed when
relaxations are enabled.
* The optimization of declaring an EH symbol as an external variable is not
implemented. This is a subset of adding the nounwind attribute, so we if really
this at -O0 we should probably do it at the IL level.
llvm-svn: 130623
2011-04-30 22:29:54 +00:00
bde52bca69
Implement MCAsmStreamer::EmitEHSymAttributes. Doing this in the asm streamer
...
is a bit ugly, but doing it on the base MCStreamer would be redundant
with the object streamer which does it using SD.
llvm-svn: 130611
2011-04-30 16:34:57 +00:00
0b474c2d15
Handle PrivateExtern eh symbols.
...
llvm-svn: 130609
2011-04-30 16:22:46 +00:00
a3181d12c6
Add all the plumbing needed for MC to expand cfi to the old tables in
...
the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.
llvm-svn: 130587
2011-04-30 03:44:37 +00:00
1d1eced025
Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.
...
llvm-svn: 130585
2011-04-30 03:21:04 +00:00
6a85f9b42e
Avoid some uses of .uleb128. This is a small speedup and more importantly
...
lets this code be used when producing assembly code for old assemblers without
uleb support.
llvm-svn: 130544
2011-04-29 21:50:57 +00:00
6c961e1b75
Implement MCAsmStreamer::EmitCFIDefCfa.
...
llvm-svn: 130543
2011-04-29 21:41:06 +00:00
72032861c6
MCAsmLayout: Add support for computing the symbol offset of variables. Not
...
currently used, because variables don't get reported as being "defined".
llvm-svn: 130524
2011-04-29 18:20:20 +00:00
bea7b93c88
MC: Change variable symbols to be recognized as defined, by assigning their sections based on FindAssociatedSection().
...
llvm-svn: 130523
2011-04-29 18:20:17 +00:00
b200f93125
MC/Mach-O: Update getSymbolAddress() to support evaluation of variables.
...
llvm-svn: 130522
2011-04-29 18:13:42 +00:00
29ba55cfe4
MC/Mach-O: Allow emission of relocations for variables in some more cases.
...
llvm-svn: 130520
2011-04-29 18:10:47 +00:00
b9c2b6c50d
MC/Mach-O: Find section ordinal's by looking at the symbol, instead of assuming they are present in a fragment.
...
llvm-svn: 130519
2011-04-29 18:07:43 +00:00
124ae13421
Hoist MCLineEntry construction AsmPrinter so that anyone who derives from AsmPrinter can have line number entries.
...
PR 9810
llvm-svn: 130518
2011-04-29 18:00:54 +00:00
dc3e4cc5ed
MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics
...
that associate sections with expressions.
llvm-svn: 130517
2011-04-29 18:00:03 +00:00
1bf128eaeb
MC/AsmParser: Generalize a check.
...
llvm-svn: 130515
2011-04-29 17:53:11 +00:00
68067664c3
Last bit by bit compatibility patch to MCDwarf.cpp: If a FDE with no LSDA is
...
assigned to a CIE that requires one, just output a 0.
llvm-svn: 130472
2011-04-29 03:06:29 +00:00
7c7151512c
Add an alternative implementation of CIE and FDE emission that outputs them
...
in the same order as the one in CodeGen.
llvm-svn: 130471
2011-04-29 02:42:28 +00:00
6bd6a70837
Add the getExprForFDESymbol method that responsible for computing the
...
expressions used in the FDE to refer to symbols.
llvm-svn: 130437
2011-04-28 21:04:39 +00:00
c5dac4df2e
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
...
converting the symbol passed to .cfi_personality into bytes is the file.
llvm-svn: 130400
2011-04-28 16:09:09 +00:00
349c3298da
Mark the EH symbol global or weak if the corresponding function is.
...
llvm-svn: 130397
2011-04-28 12:50:37 +00:00
2eeee8cfef
Add a small temporary hack for producing identical eh_frame sections on OS X.
...
This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
llvm-svn: 130379
2011-04-28 04:04:14 +00:00
bf60fb0a37
Produce the EH_frame# symbols if needed.
...
llvm-svn: 130378
2011-04-28 03:26:11 +00:00
96b07932a3
Forward isFunctionEHFrameSymbolPrivate. If it is false, produce the foo.eh
...
symbols.
llvm-svn: 130375
2011-04-28 02:46:42 +00:00
27c0c9bb87
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
ae124da625
Force some values to be absolute and align based on the FDE pointers size. A small
...
step towards using .cfi_* on OS X.
llvm-svn: 130273
2011-04-27 01:43:49 +00:00
3584ab6cc6
No relocation produces a SLEB or ULEB, make sure they are handled in MC.
...
llvm-svn: 130181
2011-04-26 02:17:58 +00:00
1b86ea80bb
Give MC/MCDisassembler/Disassembler.h a header guard.
...
llvm-svn: 130096
2011-04-24 15:46:56 +00:00
1a180156b6
Remove unused STL header includes.
...
llvm-svn: 130068
2011-04-23 19:53:52 +00:00
bab81b9797
Delete the other unused variable in this function. Sorry I missed this
...
the first time through.
llvm-svn: 129969
2011-04-22 01:29:18 +00:00
ea41470726
Remove an unused variable from a function. This is a likely cut-paste-o.
...
Silences GCC warning.
I wonder why Clang doesn't warn on this...
llvm-svn: 129968
2011-04-22 01:21:06 +00:00
5395f44fe8
Compute the size of the FDE encoding instead of hard coding it. Update
...
X8664_ELFTargetObjectFile::getFDEEncoding to match reality.
llvm-svn: 129959
2011-04-22 00:08:43 +00:00
6aea59268a
Remove unused argument.
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llvm-svn: 129955
2011-04-21 23:39:26 +00:00
ea61f22dd3
Don't pass address spaces to EmitULEB128IntValue.
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llvm-svn: 129953
2011-04-21 23:26:40 +00:00
c3dc486752
Fix relative relocations. This is sufficient for running the rust testsuite with
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MC :-)
llvm-svn: 129923
2011-04-21 18:36:50 +00:00
ed16477cb9
Behave like gnu as when a relocation crosses sections.
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llvm-svn: 129850
2011-04-20 14:01:45 +00:00
d897f39797
Made the MC disassembler check before accessing
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MCInst operands for ARM. This allows it to be
more tolerant of malformed MCInsts or incorrect
instruction metadata.
llvm-svn: 129840
2011-04-20 00:43:34 +00:00
b2545fbc2a
malloc elimination: it's a bad idea to use raw_svector_ostream on a
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small heap-allocated SmallString because it unconditionally forces a malloc.
(Revised version of r129688, with the necessary flush() call.)
llvm-svn: 129716
2011-04-18 20:54:46 +00:00
17740e70d5
Reduce clutter in asm output. Do not emit source location as comment for each instruction.
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llvm-svn: 129715
2011-04-18 20:26:49 +00:00
3f8ecf5cc5
Revert r129688; it's breaking buildbots.
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llvm-svn: 129689
2011-04-18 05:54:54 +00:00
2dc287a147
More malloc elimination: it's a bad idea to use raw_svector_ostream on a
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small heap-allocated SmallString because it unconditionally forces a malloc.
llvm-svn: 129688
2011-04-18 05:38:58 +00:00
0e40208d7b
Make the StringMaps attached to MCContext use the MCContext's allocator;
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reduces the number of calls to malloc().
llvm-svn: 129687
2011-04-18 05:02:31 +00:00
0ab5e2cded
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
llvm-svn: 129558
2011-04-15 05:18:47 +00:00
539d96f01d
Be consistent about being virtual and returning void in the cfi methods.
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Implement the ones that were missing in the asm streamer.
llvm-svn: 129413
2011-04-12 23:59:07 +00:00
fd794affe5
Remove LastOffset from the asm parser.
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llvm-svn: 129378
2011-04-12 18:53:30 +00:00
1ec0f46169
Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
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llvm-svn: 129362
2011-04-12 16:12:03 +00:00
2e1c9d2188
Implement .cfi_same_value.
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llvm-svn: 129361
2011-04-12 15:31:05 +00:00
ffc0e1f6e6
Match case for invalid constant error messages and add a new
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test for invalid hexadecimals.
llvm-svn: 129326
2011-04-12 00:18:03 +00:00
104af0619e
To avoid printing out multiple error messages for cases like:
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.long 80+08
go ahead and assume that if we've got an Error token that we handled it
already. Otherwise if it's a token we can't handle then go ahead and
return the default error.
llvm-svn: 129322
2011-04-12 00:03:13 +00:00
64749f2a89
Lex, and then fail on invalid constants.
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Testcase forthcoming.
rdar://8490596
llvm-svn: 129309
2011-04-11 22:24:56 +00:00
82065cb6cf
Implement cfi_rel_offset
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llvm-svn: 129306
2011-04-11 21:49:50 +00:00
ffd2e5163b
implement .cfi_adjust_cfa_offset.
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llvm-svn: 129296
2011-04-11 20:29:16 +00:00
9377a52c12
Adding support for printing operands symbolically to llvm's public 'C'
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disassembler API. Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
blx _puts
instead of this:
blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
movt r0, :upper16:((_foo-_bar)+1234)
llvm-svn: 129284
2011-04-11 18:08:50 +00:00
26e7768f38
Fix potential buffer overflow on win32.
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llvm-svn: 129214
2011-04-09 14:06:12 +00:00
2b6c96b43d
Don't store Twine temporaries, it's not safe.
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And don't append the name over and over again in the loop.
llvm-svn: 129210
2011-04-09 11:26:27 +00:00
1426351c83
Redirected errors from the AsmParser to the proper
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error stream, in cases where the AsmParser is
being invoked by EDDisassembler. Before, they
were being sent to errs() because no error handler
was installed in the SourceMgr.
llvm-svn: 129177
2011-04-09 00:37:25 +00:00
b80875edee
Micro optimization and improved similarity with gas' output:
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When two section names share a suffix, reuse the entry in shstrtab.
llvm-svn: 129115
2011-04-07 23:21:52 +00:00
88bc341061
Add support for .skip.
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Patch by Roman Divacky.
Fixes PR9361.
llvm-svn: 129106
2011-04-07 20:26:23 +00:00
6c6be946fc
Fixed a bug where missing EDInstInfo would cause
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tokenization to crash and burn.
llvm-svn: 129051
2011-04-07 01:56:01 +00:00
e59f8ca49e
An MCDisassembler has the option to not implement
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getEDInfo(), in which case this code would dereference
NULL. EDInst can already handle NULL info, so avoid
the dereference and pass NULL through.
Reviewed by Sean Callanan
llvm-svn: 128904
2011-04-05 18:40:45 +00:00
5bbe957155
Added support symbolic floating point constants in the MC assembler for Infinity
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and Nans with the same strings as GAS supports. rdar://8673024
llvm-svn: 128488
2011-03-29 21:11:52 +00:00
3cf622a832
Fix the MSVC build.
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llvm-svn: 128441
2011-03-29 00:30:01 +00:00
4ee0d03274
MC: Add support for disabling "temporary label" behavior. Useful for debugging
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on Darwin.
llvm-svn: 128430
2011-03-28 22:49:15 +00:00
2d45693446
Unbreak CMake build.
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llvm-svn: 128426
2011-03-28 20:43:53 +00:00
f3070dc40d
Again adding a C API to the disassembler for use by such tools as Darwin's
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otool(1), this time with the needed fix for case sensitive file systems :) .
This is a work in progress as the interface for producing symbolic operands is
not done. But a hacked prototype using information from the object file's
relocation entiries and replacing immediate operands with MCExpr's has been
shown to work with no changes to the instrucion printer. These APIs will be
moved into a dynamic library at some point.
llvm-svn: 128415
2011-03-28 18:25:07 +00:00
af66980d8a
Fix whitespace.
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llvm-svn: 128370
2011-03-27 01:44:40 +00:00
d077a857cc
Remove the files for r128308 as it is causing a buildbot failure.
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llvm-svn: 128309
2011-03-26 00:23:05 +00:00
c8b4078654
Adding a C API to the disassembler for use by such tools as Darwin's otool(1).
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This is a work in progress as the interface for producing symbolic operands is
not done. But a hacked prototype using information from the object file's
relocation entiries and replacing immediate operands with MCExpr's has been
shown to work with no changes to the instrucion printer. These APIs will be
moved into a dynamic library at some point.
llvm-svn: 128308
2011-03-26 00:06:33 +00:00
6f4c9425eb
MC: Improve some diagnostics on uses of '.' pseudo-symbol.
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llvm-svn: 128289
2011-03-25 17:47:17 +00:00
3f56104be1
Tidyness.
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llvm-svn: 128288
2011-03-25 17:47:14 +00:00
f170f8bff6
Add asm parsing support w/ testcases for strex/ldrex family of instructions
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llvm-svn: 128236
2011-03-24 21:04:58 +00:00
a3df87fb01
Clean up assembly statement separator support.
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The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.
llvm-svn: 128227
2011-03-24 18:46:34 +00:00
ab234158b8
Fix a bug introduced by my patch yesterday: BL is a 4-byte instructions like BLX, rather than a 2-byte instruction like B.
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llvm-svn: 128169
2011-03-23 21:19:56 +00:00
6149a34102
RIT_ARM_ThumbBranch32Bit relocations are not used and should never be generated.
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This fixes kimwitu++, bullet, and tramp3dv4 with the ARM integrated assembler.
Fixes <rdar://problem/9165738>.
llvm-svn: 128117
2011-03-22 22:52:54 +00:00
9746286bec
Add support for Thumb interworking addresses for symbol offsets that get constant folded very early.
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This fixes SPASS with -integrated-as. <rdar://problem/9165399>
llvm-svn: 128037
2011-03-21 23:13:43 +00:00
Rafael Espindola