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48 Commits

Author SHA1 Message Date
Bill Wendling
d751c64a67 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 00:28:12 +00:00
Owen Anderson
cb37188323 Use raw_ostream throughout the AsmPrinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 00:14:44 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Jim Laskey
072200c36d Landing pad-less eh for PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33622 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-29 18:51:14 +00:00
Jim Laskey
44c3b9fdd4 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33550 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-26 21:22:28 +00:00
Bill Wendling
bcd2498f4f Removed more <iostream> includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32321 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 20:28:15 +00:00
Jim Laskey
6519546eda Simplify DwarfWriter header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31295 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-30 13:35:07 +00:00
Chris Lattner
8466b21432 Do not leak all of the SourceLineInfo objects. Do not bother mallocing each 
one separately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31022 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 22:06:46 +00:00
Jim Laskey
a0f3d17daa Make target asm info a property of the target machine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30162 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:06:40 +00:00
Jim Laskey
563321a258 Separate target specific asm properties from the asm printers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:34:40 +00:00
Jim Laskey
89d67faf30 Add and sort "sections" in debug lines. This always stepping through 
code in sections other than ".text", including weak sections like ctors and
dtors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28909 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-23 12:51:53 +00:00
Jim Laskey
014f98c7e5 Place dwarf headers at earliest possible point. Well behaved when skipping 
functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28781 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-14 11:35:03 +00:00
Reid Spencer
c773de6d61 Fix some doxygen usage in these headers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28394 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-19 19:07:54 +00:00
Owen Anderson
a69571c799 Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference. 
This fixes PR 759.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-03 01:29:57 +00:00
Jim Laskey
6b92b8e50d Make sure that debug labels are defined within the same section and after the 
entry point of a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27494 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-07 20:44:42 +00:00
Jim Laskey
4188699f80 Foundation for call frame information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27491 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-07 16:34:46 +00:00
Jim Laskey
b3e7be25be Refactor address attributes. Add base register to frame info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27226 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-28 14:58:32 +00:00
Jim Laskey
90c79d73ac Make sure types are allocated in the scope of their use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27002 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-23 23:02:34 +00:00
Jim Laskey
b8509c5752 Generate local variable and scope information and equivalent dwarf forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26989 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-23 18:07:55 +00:00
Chris Lattner
a1b2a9b7e2 Fix a compilation error with GCC 4.1. Thanks to Vladimir Merzliakov for 
pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26467 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-02 00:21:41 +00:00
Jim Laskey
92ae740396 Use context and not compile unit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26453 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-01 18:20:30 +00:00
Jim Laskey
bd76184e67 Supporting multiple compile units. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26402 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-27 17:27:12 +00:00
Jim Laskey
0d086af82b Re-orging file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26401 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-27 12:43:29 +00:00
Jim Laskey
f4afdd9f41 DwarfWriter reading basic type information from llvm-gcc4 code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26331 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-23 16:58:18 +00:00
Jim Laskey
0420f2aaf9 Coordinate activities with llvm-gcc4 and dwarf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26314 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-22 19:02:11 +00:00
Jim Laskey
86cbdba522 Changing model for the construction of debug information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26016 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-06 15:33:21 +00:00
Jim Laskey
da427fa5da Using bit size of integers instead of ambiguous "long" et all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25694 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 20:31:25 +00:00
Jim Laskey
3ea0e0e005 Sorry - really folowing convention. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25691 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 18:32:41 +00:00
Jim Laskey
d8f77bae03 Improve visibility/correctness of operand indices in "llvm.db" objects. 
Handle 64 in DIEs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25684 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 15:20:54 +00:00
Jim Laskey
511731786e Dropped DwarfWriter:: 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25665 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 22:25:04 +00:00
Jim Laskey
6e87c0e029 Use global information to fill out Dwarf compile units. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25662 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 21:22:49 +00:00
Jim Laskey
b3e789ac25 Set up MachineDebugInfo to scan for debug information form "llvm.db"g globals. 
Global Variable information is now pulled from "llvm.dbg.globals"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25655 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 20:21:46 +00:00
Jim Laskey
52060a0e71 Crude Dwarf global variable debugging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25569 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-24 00:49:18 +00:00
Jim Laskey
63ae85f194 Simplify search for abbreviations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25491 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-21 01:13:18 +00:00
Jim Laskey
736832107b Correct some simple errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25490 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-21 00:59:54 +00:00
Jim Laskey
4002017e68 Right size integer values before emitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25489 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-20 21:02:36 +00:00
Jim Laskey
d18e28964b Reworked how Dwarf debug info entries and abbreviations are handled. Added 
pubnames and debuy str sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25487 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-20 20:34:06 +00:00
Jim Laskey
e719a7c40b Added minimum Dwarf aranges. Cleaned up some section headers. Line number 
support now works in gdb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25417 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-18 16:54:26 +00:00
Jim Laskey
08878dac8f Pastos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25412 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 21:39:39 +00:00
Jim Laskey
19ef4efa70 Add frame work for additional dwarf sections. Comments will improve as code 
is added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25410 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 20:41:40 +00:00
Jim Laskey
0cbd242e33 Misc. errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25399 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 19:12:24 +00:00
Jim Laskey
063e765345 Adding basic support for Dwarf line number debug information. 
I promise to keep future commits smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25396 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 17:31:53 +00:00
Jim Laskey
abf6d1784b Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25104 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-05 01:25:28 +00:00
Jim Laskey
b2efb853f0 Applied some recommend changes from sabre. The dominate one beginning "let the 
pass manager do it's thing."  Fixes crash when compiling -g files and suppresses
dwarf statements if no debug info is present.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25100 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 22:28:25 +00:00
Jim Laskey
a7cea6f599 Tie dwarf generation to darwin assembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25093 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 13:52:30 +00:00
Reid Spencer
6a2bd74606 Add an eol at the end to shut gcc up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24925 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-22 01:40:06 +00:00
Jim Laskey
9369a5dbc7 Oops llvm namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24913 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 19:46:32 +00:00
Jim Laskey
7f149034e5 Start of Dwarf framework code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24912 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 19:44:40 +00:00