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50 Commits

Author SHA1 Message Date
Devang Patel
fe9581f0cd Undo previous checkin. 
llvm-svn: 62190
 2009-01-13 22:54:57 +00:00
Devang Patel
dd25a9d0aa Use DwarfWriter to record dbg variables. 
llvm-svn: 62185
 2009-01-13 21:44:10 +00:00
Devang Patel
ca997988c3 Use dwarf writer to decide whether the module has debug info or not. 
llvm-svn: 62184
 2009-01-13 21:25:00 +00:00
Devang Patel
f3456e8f07 Start using DebugInfo API to emit debug info. 
llvm-svn: 62125
 2009-01-13 00:20:51 +00:00
Devang Patel
243b4add9a Emit debug info, only if at least one compile unit is seen. 
llvm-svn: 62118
 2009-01-12 23:09:42 +00:00
Devang Patel
b71fbeb19f If multiple compile units are seen then emit them independently. In other words, do not force all DIEs into first, whatever it is, compile unit. 
Note, multiple compile unit support is not well tested (it did not work correctly until now anyway.)

llvm-svn: 62116
 2009-01-12 23:05:55 +00:00
Devang Patel
4aa4128ced Avoid cast<>, use light weith wrapper directly. 
llvm-svn: 62115
 2009-01-12 22:58:14 +00:00
Devang Patel
4223582f00 Use SrcLineInfo from DwarfWriter. The MachineModuleInfo copy will disappear soon. 
llvm-svn: 62114
 2009-01-12 22:54:42 +00:00
Devang Patel
df31a7256d Add DwarfWriter interface to mainipulate source location info. 
( May be this info should be directly handled by the dwarf writer ? )

llvm-svn: 62096
 2009-01-12 19:17:34 +00:00
Devang Patel
f033d53264 Clear debug info at the end of function processing. 
llvm-svn: 62092
 2009-01-12 18:48:36 +00:00
Devang Patel
5daa1abf25 There is no need to maintain separate labelid list in the dwarf writer. It is not a good idea. 
llvm-svn: 62090
 2009-01-12 18:41:00 +00:00
Devang Patel
af7d04207c Reduce initial small vector sizes. 
llvm-svn: 62023
 2009-01-10 02:42:49 +00:00
Devang Patel
5491f25810 Fix thinko. Create parent scope if parent descriptor is *not* null. 
llvm-svn: 62022
 2009-01-10 02:34:18 +00:00
Devang Patel
f646668799 Convert DwarfWriter into a pass. 
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955
 2009-01-08 23:40:34 +00:00
Devang Patel
65143c537c Add DebugInfo based APIs to record source line info. 
llvm-svn: 61928
 2009-01-08 17:19:22 +00:00
Devang Patel
145a7cfa85 Add APIs to record regions and variables. 
Again, shamelessly copied from MMI.

llvm-svn: 61912
 2009-01-08 02:49:34 +00:00
Devang Patel
fbbe93bf68 Add APIs to manage scope using DebugInfo interface. 
This is a shameless copy of similar APIs from MachineModuleInfo. The copy from MMI will be deleted in near future.

llvm-svn: 61908
 2009-01-08 02:33:41 +00:00
Devang Patel
928d465b6b Set up DwarfDebug using DebugInfo API. 
llvm-svn: 61822
 2009-01-06 21:07:30 +00:00
Bill Wendling
a055b8c0d3 Forgot that this was needed for Linux. This should fix the builds. 
llvm-svn: 61819
 2009-01-06 19:13:55 +00:00
Devang Patel
244a649764 Construct subprogram DIEs using DebugInfo. 
llvm-svn: 61772
 2009-01-05 23:21:35 +00:00
Devang Patel
245a73ac16 Construct global variable DIEs using DebugInfo. 
llvm-svn: 61771
 2009-01-05 23:11:11 +00:00
Devang Patel
0479d7647f Construct compile unit dies using DebugInfo. 
llvm-svn: 61768
 2009-01-05 23:03:32 +00:00
Bill Wendling
f9b5ba7bcb Revert r61415 and r61484. Duncan was correct that these weren't needed. 
llvm-svn: 61765
 2009-01-05 22:53:45 +00:00
Devang Patel
ced6524437 Extract source location info from DebugInfo. 
Add methods to add source location info in a DIE.

llvm-svn: 61761
 2009-01-05 22:35:52 +00:00
Devang Patel
c0a190085d Add type DIEs using DebugInfo. 
llvm-svn: 61757
 2009-01-05 21:47:57 +00:00
Devang Patel
1054a852b2 Construct composite type DIE using DebugInfo. 
llvm-svn: 61741
 2009-01-05 19:55:51 +00:00
Devang Patel
2c2eeabb54 s/ConstructType/ConstructTypeDIE/g 
llvm-svn: 61731
 2009-01-05 19:07:53 +00:00
Devang Patel
5024d377f2 Construct stuct field DIEs. 
llvm-svn: 61729
 2009-01-05 18:59:44 +00:00
Devang Patel
c0adc6b9bc Construct enumerator DIE using DebugInfo. 
llvm-svn: 61726
 2009-01-05 18:38:38 +00:00
Devang Patel
758e7d7781 Construct array/vector type DIEs using DebugInfo. 
llvm-svn: 61724
 2009-01-05 18:33:01 +00:00
Devang Patel
1e03f7f19e Construct basic and derived type DIEs using DebugInfo. 
llvm-svn: 61714
 2009-01-05 17:57:47 +00:00
Devang Patel
15deef2a3c subsume ConstructPointerType() 
llvm-svn: 61711
 2009-01-05 17:45:59 +00:00
Devang Patel
ef2a94e8df subsume ConstructBasicType(). 
llvm-svn: 61709
 2009-01-05 17:44:11 +00:00
Bill Wendling
03f2af79b8 Linux wants the FDE initial location and address range to be forced to 32-bit. 
Darwin doesn't. Make this optional for platforms.

llvm-svn: 61484
 2008-12-29 22:12:11 +00:00
Bill Wendling
b13c83ac18 The FDE initial location and address range data should be free to be 64-bit 
(quad) on a 64-bit platform. This fixes a problem with EH frames on Darwin.

llvm-svn: 61483
 2008-12-29 21:51:42 +00:00
Bill Wendling
d6bd7e9372 Darwin likes for the EH frame to be non-local. 
llvm-svn: 61420
 2008-12-24 08:05:17 +00:00
Bill Wendling
066b5f6724 GCC doesn't emit DW_EH_PE_sdata4 for the FDE encoding on Darwin. I'm not sure 
about other platforms.

llvm-svn: 61415
 2008-12-24 05:25:49 +00:00
Devang Patel
70bd60d1d4 Fix typo. 
Silence unused variable warning.

llvm-svn: 61391
 2008-12-23 21:55:38 +00:00
Rafael Espindola
770b4b830a Fix bug 3202. 
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.

llvm-svn: 61242
 2008-12-19 10:55:56 +00:00
Devang Patel
42828e8168 Do not print empty DW_AT_comp_dir. 
llvm-svn: 60965
 2008-12-12 21:57:54 +00:00
Evan Cheng
288fbd2133 Fix a couple of Dwarf bugs. 
- Emit DW_AT_byte_size for struct and union of size zero.
- Emit DW_AT_declaration for forward type declaration.

llvm-svn: 60812
 2008-12-10 00:15:44 +00:00
Evan Cheng
74a24b260e Cosmetic changes. 
llvm-svn: 60771
 2008-12-09 17:56:30 +00:00
Bill Wendling
fe9e2c587d The Dwarf writer was comparing mangled and unmangled names for C++ code when we 
have an unreachable block in a function. This was triggering the assert. This is
a horrid hack to cover this up.

Oh! for a good debug info architecture!

llvm-svn: 57714
 2008-10-17 18:48:57 +00:00
Dale Johannesen
d796164e89 Align EH tables before label is emitted, not after, 
thus aligning the label.

llvm-svn: 57310
 2008-10-08 21:50:21 +00:00
Dan Gohman
0d1e9a8e04 Switch the MachineOperand accessors back to the short names like 
isReg, etc., from isRegister, etc.

llvm-svn: 57006
 2008-10-03 15:45:36 +00:00
Bill Wendling
374d7f2b16 If we have a function with an unreachable statement such that the ending debug 
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
 2008-09-26 00:28:12 +00:00
Anton Korobeynikov
7497762606 Get rid of duplicate char*/Section* DataSection 
llvm-svn: 56575
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov
f8dc8aac3c Get rid of duplicate char*/Section* TextSection 
llvm-svn: 56574
 2008-09-24 22:15:21 +00:00
Owen Anderson
9371964f47 Use raw_ostream throughout the AsmPrinter. 
llvm-svn: 55092
 2008-08-21 00:14:44 +00:00
Anton Korobeynikov
9cb0e94dc7 Move all assembler printing related stuff into new libAsmPrinter 
llvm-svn: 54885
 2008-08-17 13:53:04 +00:00