a575226fd8
Emit the handler's data area. For GCC-style exceptions under Win64, the
...
handler's data area starts with a 4-byte reference to the personality
function, followed by the DWARF LSDA.
llvm-svn: 132302
2011-05-30 00:13:34 +00:00
b025724b46
When generating against the Win64 EH scheme, set the handler to the GCC-specific
...
handler.
At this moment, only GCC-style exceptions are supported. Other kinds
of exceptions, including "traditional" SEH and Microsoft Visual C++ exceptions,
need more work--and an compiler exception model that isn't specific to
GCC-style exceptions!
In particular, I imagine that it would be possible to mix "traditional" SEH
with GCC-style EH or Microsoft C++ EH. Currently LLVM has no way (beyond some
target-specific defaults and whole-module compiler switches) of knowing which
scheme to use when.
llvm-svn: 132283
2011-05-29 04:28:35 +00:00
5638b9f01e
When generating code for Win64 EH, emit StartProc and EndProc directives.
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llvm-svn: 132250
2011-05-28 04:21:04 +00:00
8816bbc02d
Select DW_AT_const_value size based on global variable size.
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llvm-svn: 132239
2011-05-28 00:39:18 +00:00
836f7db2cc
Fix the root cause of the bootstrap failure:
...
There was no way to check if a given register/mode pair was valid. We now return
an error code (-2) instead of asserting. If anyone thinks that an assert
at this point is really needed, we can autogen a hasValidDwarfRegNum instead.
llvm-svn: 132236
2011-05-28 00:13:01 +00:00
91ed799eb4
Stub out support for Win64-style exceptions. Note that this is merely using
...
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!
llvm-svn: 132234
2011-05-27 23:47:32 +00:00
b8e08be77d
Fix a regression I recently introduced by removing DwarfRegNum of
...
subregisters:
When a value is in a subregister, at least report the location as being
the superregister. We should extend the .td files to encode the bit
range so that we can produce a DW_OP_bit_piece.
llvm-svn: 132224
2011-05-27 22:15:01 +00:00
d23bfb8a7a
Make size computation less brittle.
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llvm-svn: 132222
2011-05-27 22:05:41 +00:00
39e22eae49
Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form.
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llvm-svn: 132206
2011-05-27 19:13:26 +00:00
f1d04706fb
Handle signed types gracefully.
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This fixes regressions reported by buildbots as a fallout of r132193.
llvm-svn: 132197
2011-05-27 18:15:52 +00:00
3c6aed2d98
Select DW_AT_const_value size based on variable size.
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llvm-svn: 132193
2011-05-27 16:45:18 +00:00
fc9bae6f8b
Replace the -unwind-tables option with a per function flag. This is more
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LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.
llvm-svn: 132033
2011-05-25 03:44:17 +00:00
354fa0798f
Fix debug info for blocks' variable.
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llvm-svn: 131940
2011-05-24 00:22:25 +00:00
faaa16ea2c
Remove unnecessary comment.
...
llvm-svn: 131936
2011-05-23 23:16:14 +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
17c1d13ee4
Fix typo.
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llvm-svn: 131757
2011-05-20 21:35:39 +00:00
83c4bb157a
Add support for frame info use of the .cfi_def_cfa directive.
...
llvm-svn: 131756
2011-05-20 21:23:17 +00:00
12419aee7a
Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.
...
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g
llvm-svn: 131244
2011-05-12 21:29:42 +00:00
2409e7843b
Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
...
llvm-svn: 131238
2011-05-12 19:06:16 +00:00
34a6620748
Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
...
llvm-svn: 131194
2011-05-11 19:22:19 +00:00
a678098f24
Initialize moveTypeModule.
...
llvm-svn: 131157
2011-05-10 21:54:59 +00:00
19c1a56287
Produce a __debug_frame section on darwin ARM when appropriate.
...
llvm-svn: 131151
2011-05-10 21:04:45 +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
fdc3e6fab6
Use .cfi_sections to put the unwind info in .debug_frame when possible. With
...
this clang will use .debug_frame in, for example,
clang -g -c -m32 test.c
This matches gcc's behaviour. It looks like .debug_frame is a bit bigger
than .eh_frame, but has the big advantage of not being allocated.
llvm-svn: 131140
2011-05-10 18:39:09 +00:00
589845d887
Do not ignore InlinedAt while walking up scope chain to find subprogram node.
...
llvm-svn: 131106
2011-05-09 22:14:49 +00:00
17b532728b
Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
...
llvm-svn: 130991
2011-05-06 16:57:54 +00:00
705d25a1f4
Nothing else uses this label.
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llvm-svn: 130989
2011-05-06 15:44:29 +00:00
6e4fa20efb
Yet more dead code.
...
llvm-svn: 130988
2011-05-06 15:31:55 +00:00
d06c2c1b81
Update comments.
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llvm-svn: 130987
2011-05-06 15:28:56 +00:00
4bfa978ca5
More dead code elimination.
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llvm-svn: 130985
2011-05-06 15:22:26 +00:00
a716096677
Dead code elimination.
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llvm-svn: 130984
2011-05-06 14:56:22 +00:00
bb237c72a6
Remove DwarfTableException.
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llvm-svn: 130964
2011-05-05 23:19:54 +00:00
ec0a3a0bbf
Remove the DwarfTable enum.
...
llvm-svn: 130959
2011-05-05 22:14:31 +00:00
d6141e1db2
Remove little used statistical counter.
...
llvm-svn: 130955
2011-05-05 22:00:08 +00:00
59b6bfdbc6
Implement a really simple DwarfSjLjException.
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llvm-svn: 130947
2011-05-05 20:48:31 +00:00
240c96e2ca
List all exception types in a switch.
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llvm-svn: 130944
2011-05-05 19:48:34 +00:00
73bc172493
If debug info for inlined function is missing then handle it gracefully.
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llvm-svn: 130933
2011-05-05 17:54:26 +00:00
a48b1375df
Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one
...
who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>
llvm-svn: 130918
2011-05-05 06:49:15 +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
c981f6299e
Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite.
...
llvm-svn: 130842
2011-05-04 16:34:02 +00:00
543596d57b
Even if the subprogram is going to use AT_specification, emit DW_AT_MIPS_linkage_name. This helps gdb and fixes var-path-expr.exp regression reported by gdb testsuite.
...
llvm-svn: 130794
2011-05-03 21:50:34 +00:00
e02e58528a
If the front end has emitted llvm.dbg.cu and other debug info anchors (clang does it now) then use them directly. This saves one scan of entire module, to collect debug info, which in turns saves few machine cycles at compile time.
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llvm-svn: 130759
2011-05-03 16:45:22 +00:00
420ab5f180
Emit debug info for global variables first.
...
This works around a limitation in gdb which is reported by following inherit.exp test failures from gdb testsuite.
gdb.cp/inherit.exp: print g_vB.vB::vb
gdb.cp/inherit.exp: print g_vB.vB::vx
gdb.cp/inherit.exp: print g_vC.vC::vc
gdb.cp/inherit.exp: print g_vC.vC::vx
gdb.cp/inherit.exp: print g_vD.vB::vb
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llvm-svn: 130702
2011-05-02 18:19:17 +00:00
e406670954
Only produce the eh_frame section if we have at least one personality function.
...
llvm-svn: 130692
2011-05-02 15:49:52 +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
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
1fc5bf9fc5
The last hack for producing bit identical output with cfi on OS X.
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llvm-svn: 130504
2011-04-29 15:09:53 +00:00
697edc89a5
Change DwarfCFIException's member variables to track what it actually
...
emmits: .cfi_personality, .cfi_lsda and the moves.
llvm-svn: 130503
2011-04-29 14:48:51 +00:00
b7a012a282
Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.
...
llvm-svn: 130501
2011-04-29 14:14:06 +00:00
3e021533cd
Teach dwarf writer to handle complex address expression for .debug_loc entries.
...
This fixes clang generated blocks' variables' debug info.
Radar 9279956.
llvm-svn: 130373
2011-04-28 02:22:40 +00:00
ce83fc3463
Remove unnecessary argument.
...
llvm-svn: 130343
2011-04-27 23:17:57 +00:00
08704349da
Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and
...
give it a bit more responsibility. Also implement it for MachO.
If hacked to use cfi, 32 bit MachO will produce
.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr
and 64 bit will produce
.cfi_presonality ___gxx_personality_v0
The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.
llvm-svn: 130341
2011-04-27 23:08:15 +00:00
77dc541b00
Simplify handling of variables with complex address (i.e. blocks variables)
...
llvm-svn: 130339
2011-04-27 22:45:24 +00:00
e3745fdcf3
Revert r130178. It turned out to be not the optimal path to emit complex location expressions.
...
llvm-svn: 130326
2011-04-27 20:29:27 +00:00
a4fa5ce911
Print the label if we will use it in debug_frame.
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llvm-svn: 130232
2011-04-26 19:26:53 +00:00
ba5fbf17df
Refactor code. Keep dwarf register operation selection logic at one place.
...
llvm-svn: 130231
2011-04-26 19:06:18 +00:00
189ca1498f
don't emit the symbol name twice for local bss and common
...
symbols. For example, don't emit:
.comm _i,4,2 ## @i
## @i
instead emit:
.comm _i,4,2 ## @i
llvm-svn: 130192
2011-04-26 06:14:13 +00:00
80cb3cb1d6
Print all the moves at a given label instead of just the first one.
...
Remove previous DwarfCFI hack.
llvm-svn: 130187
2011-04-26 03:58:56 +00:00
cae2fbd6fc
Let dwarf writer allocate extra space in the debug location expression. This space, if requested, will be used for complex addresses of the Blocks' variables.
...
llvm-svn: 130178
2011-04-26 00:12:46 +00:00
2606f4d6d2
Rename a local variable.
...
llvm-svn: 130171
2011-04-25 23:05:21 +00:00
8ce24133fd
Rename a method to match what it really does.
...
s/addVariableAddress/addFrameVariableAddress/g
llvm-svn: 130170
2011-04-25 23:02:17 +00:00
2688e4aba6
Do not drop a variable's complex address if it is not based on frame base.
...
Observed this while reading code, so I do not have a test case handy here.
llvm-svn: 130167
2011-04-25 22:52:55 +00:00
a076199e71
Simplify the logic. Noticed by aKor.
...
llvm-svn: 130116
2011-04-24 19:55:34 +00:00
5c54ecc9af
Synchronize the conditions for producing a .cfi_startproc and a .cfi_endproc.
...
Fixes PR9787.
llvm-svn: 130115
2011-04-24 19:00:34 +00:00
1d6bbd41aa
Let front-end tie subprogram declaration with subprogram definition directly.
...
llvm-svn: 130028
2011-04-22 23:10:17 +00:00
ad45d911bb
Do not leak argument's DbgVariables.
...
llvm-svn: 130004
2011-04-22 18:09:57 +00:00
2266aa84a1
Refactor.
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llvm-svn: 129938
2011-04-21 21:07:35 +00:00
28f2719d83
Add comment in output stream.
...
llvm-svn: 129921
2011-04-21 17:50:24 +00:00
e473aaf540
Remove unused arguments.
...
llvm-svn: 129844
2011-04-20 03:08:09 +00:00
17740e70d5
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
659bfb34ff
Remove unused variable.
...
llvm-svn: 129639
2011-04-16 10:30:47 +00:00
a83b177035
Put each personality function in a section. This fixes the gnu ld warning:
...
error in foo.o; no .eh_frame_hdr table will be created.
llvm-svn: 129635
2011-04-16 03:51:21 +00:00
514b4006c2
Introduce support to encode Objective-C property information in debugging information generated for an interface.
...
llvm-svn: 129624
2011-04-16 00:11:51 +00:00
beb74c3f00
Some refactoring suggested by Anton Korobeynikov.
...
llvm-svn: 129600
2011-04-15 20:32:03 +00:00
a01cdb0e37
Add 129518 back with a fix for when we are producing eh just because of debug info.
...
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.
llvm-svn: 129571
2011-04-15 15:11:06 +00:00
0ab5e2cded
Fix a ton of comment typos found by codespell. Patch by
...
Luis Felipe Strano Moraes!
llvm-svn: 129558
2011-04-15 05:18:47 +00:00
b5e3e9dd27
Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the"
...
It broke several builds.
llvm-svn: 129557
2011-04-15 03:35:57 +00:00
aa2a7cd828
Change ELF systems to use CFI for producing the EH tables. This reduces the
...
size of the clang binary in Debug builds from 690MB to 679MB.
llvm-svn: 129518
2011-04-14 15:18:53 +00:00
e141234940
Remove extra bytes that were added for gdb. We do not have good poiner to understand actual reason behind this fixme. Spot checking suggest that newer gdb does not need this.
...
llvm-svn: 129461
2011-04-13 19:41:17 +00:00
0e821f4673
I missed this new file in previous commit.
...
llvm-svn: 129407
2011-04-12 23:21:44 +00:00
28dce70364
Simplify. There is no need to use static variable.
...
llvm-svn: 129406
2011-04-12 23:10:47 +00:00
13d47f0ddc
Do not reuse parameter name.
...
llvm-svn: 129405
2011-04-12 23:09:06 +00:00
f20c4f715f
This mechanical patch moves type handling into CompileUnit from DwarfDebug. In case of multiple compile unit in one object file, each compile unit is responsible for its own set of type entries anyway. This refactoring makes this obvious.
...
llvm-svn: 129402
2011-04-12 22:53:02 +00:00
4547a9e658
Remove dead typedef.
...
llvm-svn: 129368
2011-04-12 17:43:12 +00:00
5eb4319dba
Refactor CompileUnit into a separate header.
...
llvm-svn: 129367
2011-04-12 17:40:32 +00:00
778947c203
Simplify array bound checks and clarify comments. One element array can have same non-zero number as lower bound as well as upper bound.
...
llvm-svn: 129170
2011-04-08 23:39:38 +00:00
e39647951b
Do not emit DW_AT_upper_bound and DW_AT_lower_bound for unbouded array.
...
If lower bound is more then upper bound then consider it is an unbounded array.
An array is unbounded if non-zero lower bound is same as upper bound.
If lower bound and upper bound are zero than array has one element.
llvm-svn: 129156
2011-04-08 21:55:10 +00:00
b7c9c407f9
Remove dead code. rdar://9221736.
...
llvm-svn: 129044
2011-04-07 00:56:37 +00:00
9f738849ab
Add support to encode function's template parameters.
...
llvm-svn: 128947
2011-04-05 22:52:06 +00:00
d4e20eacf0
Refactor.
...
llvm-svn: 128929
2011-04-05 21:08:24 +00:00
651d06e036
Do not emit empty name.
...
llvm-svn: 128914
2011-04-05 20:14:13 +00:00
7dd4d6e2e8
Print visibility info for external variables.
...
llvm-svn: 128887
2011-04-05 15:51:32 +00:00
e0cbe31ebb
Remove dead code.
...
llvm-svn: 128639
2011-03-31 16:53:49 +00:00
1900c73a97
Tidy up. 80 columns and trailing whitespace.
...
llvm-svn: 128504
2011-03-29 23:20:22 +00:00
9a624fa993
Collect and coalesce DBG_VALUE instructions before emitting the function.
...
Correctly terminate the range of register DBG_VALUEs when the register is
clobbered or when the basic block ends.
The code is now ready to deal with variables that are sometimes in a register
and sometimes on the stack. We just need to teach emitDebugLoc to say 'stack
slot'.
llvm-svn: 128327
2011-03-26 02:19:36 +00:00
1886a4c823
Emit less labels for debug info and stop emitting .loc directives for DBG_VALUEs.
...
The .dot directives don't need labels, that is a leftover from when we created
line number info manually.
Instructions following a DBG_VALUE can share its label since the DBG_VALUE
doesn't produce any code.
llvm-svn: 128284
2011-03-25 17:20:59 +00:00
e01b75cb89
Keep track of directory namd and fIx regression caused by Rafael's patch r119613.
...
A better approach would be to move source id handling inside MC.
llvm-svn: 128233
2011-03-24 20:30:50 +00:00
a87d80cdca
Don't coalesce identical DBG_VALUE instructions prematurely.
...
Each of these instructions may have a RegsClobberInsn entry that can't be
ignored. Consecutive ranges are coalesced later when DwarfDebug::emitDebugLoc
merges entries.
llvm-svn: 128155
2011-03-23 18:37:30 +00:00
ec0ac3ca40
Reapply r128045 and r128051 with fixes.
...
This will extend the ranges of debug info variables in registers until they are
clobbered.
Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.
Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.
llvm-svn: 128114
2011-03-22 22:33:08 +00:00
b0f98bb5e9
Revert r128045 and r128051, debug info enhancements.
...
Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.
llvm-svn: 128097
2011-03-22 19:18:42 +00:00
Charles Davis