Commit Graph

30 Commits

Author SHA1 Message Date
Eric Christopher
55e8db4bf9 Refactor and reduce code duplication for non-split dwarf strings.
llvm-svn: 198233
2013-12-30 18:32:31 +00:00
Eric Christopher
2ceb2862cb Revert r198208 and reapply:
r198196: Use a pointer to keep track of the skeleton unit for each normal unit and construct it up front.
      r198199: Reapply r198196 with a fix to zero initialize the skeleton pointer.
      r198202: Fix aranges and split dwarf by ensuring that the symbol and relocation back to the compile unit from the aranges section is to the skeleton unit and not the one in the dwo.

with a fix to use integer 0 for DW_AT_low_pc since the relocation to the text section symbol was causing issues with COFF. Accordingly remove addLocalLabelAddress and machinery since we're not currently using it.

llvm-svn: 198222
2013-12-30 17:22:27 +00:00
NAKAMURA Takumi
c905b89ce0 Revert r198199 (and r198202). It broke 3 DebugInfo tests for targeting i686-cygming.
r198196: Use a pointer to keep track of the skeleton unit for each normal unit and construct it up front.
  r198199: Reapply r198196 with a fix to zero initialize the skeleton pointer.
  r198202: Fix aranges and split dwarf by ensuring that the symbol and relocation back to the compile unit from the aranges section is to the skeleton unit and not the one in the dwo.

They could be reproducible with explicit target.

  llvm/lib/MC/WinCOFFObjectWriter.cpp:224: bool {anonymous}::COFFSymbol::should_keep() const: Assertion `Section->Number != -1 && "Sections with relocations must be real!"' failed.

llvm-svn: 198208
2013-12-30 09:26:10 +00:00
Eric Christopher
e786f550dd Reapply r198196 with a fix to zero initialize the skeleton pointer.
llvm-svn: 198199
2013-12-30 03:40:32 +00:00
Eric Christopher
747bcf57ed Temporarily revert "Use a pointer to keep track of the skeleton unit for
each normal unit" as it seems to be causing problems in the asan tests.

llvm-svn: 198197
2013-12-30 03:12:31 +00:00
Eric Christopher
da5f0a0247 Use a pointer to keep track of the skeleton unit for each normal unit
and construct it up front. Add address ranges at the end and a helper
routine so that we're not needlessly using an indirction in the case
of split dwarf.

Update testcases according to the new ordering of attributes on
the compile unit.

llvm-svn: 198196
2013-12-30 03:02:12 +00:00
Eric Christopher
e5adfbcda0 Remove AsmPrinter::needsRelocationsForDwarfStringPool() since it's
just calling into MAI and is only abstracting for a single interface that
we actually need to check in multiple places.

llvm-svn: 198092
2013-12-28 01:39:17 +00:00
Adrian Prantl
3dee74d75c Debug info: Add enumerators to the __apple_names accelerator table.
rdar://problem/11516681.

llvm-svn: 197927
2013-12-23 23:50:20 +00:00
Adrian Prantl
a16d0492a0 Debug info: Implement (rvalue) reference qualifiers for C++11 non-static
member functions. Paired commit with CFE.

rdar://problem/15356637

llvm-svn: 197613
2013-12-18 21:48:19 +00:00
David Blaikie
a2d4a79272 DebugInfo: Introduce new DIValue, DIETypeSignature to encode references to type units via their signatures
This simplifies type unit and type unit reference creation as well as
setting the stage for inter-type hashing across type unit boundaries.

llvm-svn: 197539
2013-12-17 23:32:35 +00:00
Juergen Ributzka
436612def1 Remove weak vtables. No functional change.
llvm-svn: 197323
2013-12-14 12:23:14 +00:00
David Blaikie
8a09ed5776 DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers
This commit does not complete the type units feature - there are issues
around fission support (skeletal type units, pubtypes/pubnames) and
hashing of some types including those containing references to types in
other type units.

Originally committed as r197073 and reverted in r197079.
Recommitted as r197197 to reproduce the failure and reverted as r197199

Turns out there was unstable ordering in the type unit dumping code.
Fixed by using MapVector in DWARFContext to store the debug_types
comdat sections.

Recommitted as r197210 with a fix to dumping and reverted as r197211
because I was a bit gun shy and thought I saw a failure that turned out
to be unrelated.

So here we go - once more with feeling! \o/

llvm-svn: 197275
2013-12-13 21:33:40 +00:00
David Blaikie
d33cff338c Revert "DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers"
This reverts commit r197210.

llvm-svn: 197211
2013-12-13 06:43:32 +00:00
David Blaikie
46261ea89d DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers
This commit does not complete the type units feature - there are issues
around fission support (skeletal type units, pubtypes/pubnames) and
hashing of some types including those containing references to types in
other type units.

Originally committed as r197073 and reverted in r197079.
Recommitted as r197197 to reproduce the failure and reverted as r197199

Turns out there was unstable ordering in the type unit dumping code.
Fixed by using MapVector in DWARFContext to store the debug_types
comdat sections.

llvm-svn: 197210
2013-12-13 06:27:38 +00:00
David Blaikie
9606efaed1 Revert "DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers"
This reverts commit r197197.

llvm-svn: 197199
2013-12-13 01:24:54 +00:00
David Blaikie
2a33a0e60f DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers
This commit does not complete the type units feature - there are issues
around fission support (skeletal type units, pubtypes/pubnames) and
hashing of some types including those containing references to types in
other type units.

Originally committed as r197073 and reverted in r197079.

This commit originally got jumbled up with another build-breaking commit
and I can't find the failures I thought this caused anymore.
Recommitting to hopefully get some clean buildbot results to work from.
I have a sneaking suspicion there's unstable output in the comdat group
output of MCStreamer...

llvm-svn: 197197
2013-12-13 01:06:41 +00:00
David Blaikie
d7d445afd4 Revert "DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers"
This reverts commit r197073.

The test seems to be failing on some buildbots for unknown reasons.
Reverting until I can figure that out. If anyone's got a reproduction
(.s and .o together would be great) - I'd really appreciate it.

llvm-svn: 197079
2013-12-11 22:08:39 +00:00
David Blaikie
59b3fb2510 DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers
This commit does not complete the type units feature - there are issues
around fission support (skeletal type units, pubtypes/pubnames) and
hashing of some types including those containing references to types in
other type units.

llvm-svn: 197073
2013-12-11 21:36:27 +00:00
David Blaikie
1276403fc9 DwarfUnit: LLVM_OVERRIDE and constify some functions
llvm-svn: 197072
2013-12-11 21:14:02 +00:00
Eric Christopher
50bcf81f5d Rename CompileUnit->DwarfCompileUnit and TypeUnit->DwarfTypeUnit for
clarity. No functional change.

llvm-svn: 196844
2013-12-09 23:57:44 +00:00
Eric Christopher
4191add126 Rename Unit->DwarfUnit to match the file name and make it a bit less
ambiguous. Reformat to match.

llvm-svn: 196838
2013-12-09 23:32:48 +00:00
David Blaikie
b4fa4b53a5 DebugInfo: Include the section and start-of-section label in the unit
This is a precursor to moving type units into the correct (debug_types)
section with comdat groups and full type unit headers.

llvm-svn: 196615
2013-12-06 22:14:48 +00:00
Eric Christopher
e62b076d5b Rename DwarfUnits to DwarfFile to help avoid some naming confusion.
llvm-svn: 196519
2013-12-05 18:06:10 +00:00
Eric Christopher
d051658b5c Fix comment.
llvm-svn: 196437
2013-12-05 00:13:15 +00:00
David Blaikie
561838d222 DwarfUnit: Correct comment by generalizing over all units, not just compilation units.
Code review feedback on r196394 by Paul Robinson.

llvm-svn: 196433
2013-12-04 23:39:02 +00:00
Eric Christopher
93cee79b17 Use move and stack allocation for RangeSpanLists. As a result make
a few things more const as well because we're now using const
references to refer to iterators.

llvm-svn: 196398
2013-12-04 19:06:58 +00:00
David Blaikie
f92edbcbd0 DebugInfo: Remove unused start/end labels for the debug_abbrevs section
Since we always emit only one abbrevation section (shared by all the
compilation units in this module) there's no need for a separate label
at the start of each one (and we weren't using the CU ID anyway, so
there really was only one label). Use the section label instead and drop
the wholely unused debug_abbrev_end label.

llvm-svn: 196394
2013-12-04 18:12:28 +00:00
Eric Christopher
6532a47d78 Make ranges and range lists be a discrete entity that can be located
and emitted per function and CU. Begins coalescing ranges as a first
class entity through debug info. No functional change.

llvm-svn: 196178
2013-12-03 00:45:45 +00:00
David Blaikie
8e02b3d92e DebugInfo: Rename generic unit references to "TheU" instead of TheCU now that they might be type units instead of compile units.
CR feedback from Eric Christopher on r196139.

llvm-svn: 196159
2013-12-02 22:09:48 +00:00
David Blaikie
c06b6fc581 DebugInfo: Rename DwarfCompileUnit.* to DwarfUnit.* to match their contents.
llvm-svn: 196140
2013-12-02 19:33:15 +00:00