Commit Graph

75 Commits

Author SHA1 Message Date
Amjad Aboud a9bcf16ebc Macro debug info support in LLVM IR
Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros.

Differential Revision: http://reviews.llvm.org/D14687

llvm-svn: 255245
2015-12-10 12:56:35 +00:00
Amjad Aboud e59cc3e540 dwarfdump: Added macro support to llvm-dwarfdump tool.
Added "macro" option to "-debug-dump" flag, which trigger parsing and dumping of the ".debug_macinfo" section.

Differential Revision: http://reviews.llvm.org/D14294

llvm-svn: 252866
2015-11-12 09:38:54 +00:00
Dawn Perchik fc4e1c74ab Support: Recognize Borland DWARF extensions.
This patch adds DWARF values for the Delphi language and Borland C++
language extensions.

Reviewed by: dblaikie
Subscribers: llvm-commits, majnemer
Differential Revision: http://reviews.llvm.org/D14522

llvm-svn: 252776
2015-11-11 18:47:36 +00:00
Dehao Chen 72fdf444b7 Emit discriminator for inlined callsites.
Summary: Inlined callsites need to be emitted in debug info so that sample profile can be annotated to the correct inlined instance.

Reviewers: dnovillo, dblaikie

Subscribers: dblaikie, llvm-commits

Differential Revision: http://reviews.llvm.org/D14511

llvm-svn: 252768
2015-11-11 18:08:18 +00:00
Adrian Prantl 08a388ba8f Debug info: Add dwarf backend support for DIModule.
rdar://problem/20965932

llvm-svn: 241034
2015-06-30 02:13:04 +00:00
Alexey Samsonov bf19a578e6 [DWARF parser] Add basic support for DWZ DWARF multifile extensions.
This change implements basic support for DWARF alternate sections
proposal: http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open

LLVM tools now understand new forms: DW_FORM_GNU_ref_alt and
DW_FORM_GNU_strp_alt, which are used as references to .debug_info and
.debug_str sections respectively, stored in a separate file, and
possibly shared between different executables / shared objects.

llvm-dwarfdump and llvm-symbolizer don't yet know how to access this
alternate debug file (usually pointed by .gnu_debugaltlink section),
but they can at lease properly parse and dump regular files, which
refer to it.

This change should fix crashes of llvm-dwarfdump and llvm-symbolizer on
files produced by running "dwz" tool. Such files are already installed
on some modern Linux distributions.

llvm-svn: 237721
2015-05-19 20:29:28 +00:00
Duncan P. N. Exon Smith 3b631d291e Support: Add dwarf::getOperationEncoding()
llvm-svn: 229001
2015-02-13 01:05:00 +00:00
Duncan P. N. Exon Smith 8f46ee61c1 Support: Rewrite LocationAtom and OperationEncodingString(), NFC
Use `Dwarf.def` more.

llvm-svn: 229000
2015-02-13 01:04:08 +00:00
Duncan P. N. Exon Smith e7e2abe6a2 Support: Add dwarf::getVirtuality()
llvm-svn: 228474
2015-02-07 00:37:15 +00:00
Duncan P. N. Exon Smith d6f3574210 Support: Use Dwarf.def for DW_VIRTUALITY, NFC
Use definition file for `DW_VIRTUALITY_*`.  Add a `DW_VIRTUALITY_max`
both for ease of testing and for future use by the `LLParser`.

llvm-svn: 228473
2015-02-07 00:36:23 +00:00
Duncan P. N. Exon Smith e07f13ae35 Support: Add dwarf::getAttributeEncoding()
llvm-svn: 228470
2015-02-06 23:46:49 +00:00
Duncan P. N. Exon Smith dd563dd341 Support: Rewrite AttributeEncodingString(), NFC
llvm-svn: 228469
2015-02-06 23:45:37 +00:00
Duncan P. N. Exon Smith 8d4eeb53f6 Support: Stop stringifying DW_ATE_{lo,hi}_user
llvm-svn: 228468
2015-02-06 23:44:24 +00:00
Duncan P. N. Exon Smith d40af00e66 Support: Add dwarf::getLanguage()
llvm-svn: 228458
2015-02-06 22:55:13 +00:00
Duncan P. N. Exon Smith 0317944b1a Support: Rewrite dwarf::LanguageString(), NFC
llvm-svn: 228457
2015-02-06 22:53:19 +00:00
Duncan P. N. Exon Smith 4031beb10a Support: Stop stringifying DW_LANG_{lo,hi}_user
llvm-svn: 228451
2015-02-06 22:34:48 +00:00
Duncan P. N. Exon Smith 6f5546cdee Support: Add string => unsigned mapping for DW_TAG
Add `dwarf::getTag()` to translate from `StringRef` to `unsigned`.

llvm-svn: 228031
2015-02-03 21:16:49 +00:00
Duncan P. N. Exon Smith 981811efc8 Support: Re-implement dwarf::TagString() using a .def file, NFC
Also re-implements the `dwarf::Tag` enumerator.  I've moved the mock
tags into the enumerator since there's no other way to do this.  Really
they shouldn't be used at all (they're just a hack to identify
`MDNode`s, but we have a class hierarchy for that now).

llvm-svn: 228030
2015-02-03 21:13:16 +00:00
Duncan P. N. Exon Smith b036f1c98c Support: Stop stringifying DW_TAG_{lo,hi}_user
`dwarf::TagString()` shouldn't stringify `DW_TAG_lo_user` or
`DW_TAG_hi_user`.  These aren't actual tags; they're markers for the
edge of vendor-specific tag regions.

llvm-svn: 228029
2015-02-03 21:08:33 +00:00
Frederic Riss 05ad2e543f Modernize doxygen comments in Support/Dwarf.h
In post-commit review of r219442, Rafael pointed out that the comment style
of the newly introduced helper didn't follow LLVM's coding standard.
Modernize the whole file to the new standards.

Differential Revision: http://reviews.llvm.org/D5918

llvm-svn: 220467
2014-10-23 04:08:38 +00:00
Frederic Riss b5e53eefb7 Add ApplePropertyString dump helper to Dwarf.{h|cpp}.
Reviewers: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5688

llvm-svn: 219442
2014-10-09 20:43:04 +00:00
Adrian Prantl 87b7eb9d0f Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.

Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.

By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.

The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)

This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.

What this patch doesn't do:

This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.

http://reviews.llvm.org/D4919
rdar://problem/17994491

Thanks to dblaikie and dexonsmith for reviewing this patch!

Note: I accidentally committed a bogus older version of this patch previously.
llvm-svn: 218787
2014-10-01 18:55:02 +00:00
Adrian Prantl b458dc2eee Revert r218778 while investigating buldbot breakage.
"Move the complex address expression out of DIVariable and into an extra"

llvm-svn: 218782
2014-10-01 18:10:54 +00:00
Adrian Prantl 25a7174e7a Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.

Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.

By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.

The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)

This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.

What this patch doesn't do:

This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.

http://reviews.llvm.org/D4919
rdar://problem/17994491

Thanks to dblaikie and dexonsmith for reviewing this patch!

llvm-svn: 218778
2014-10-01 17:55:39 +00:00
Frederic Riss 1a3736f4f6 Reapply "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()"
This commit was reverted in r217183, but is OK to go in again now that its dependency is commited (as of r217186).

llvm-svn: 217231
2014-09-05 07:21:40 +00:00
Frederic Riss 878065bb21 [ dwarfdump ] Add symbolic dump of known DWARF attribute values.
Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5187

llvm-svn: 217186
2014-09-04 19:39:20 +00:00
Frederic Riss 28f3d4186d Revert "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()"
This reverts commit 93c7e6161e1adbd2c7ac81fa081823183035cb64.

This commit got approved first, but was dependant on another one going in (The one pretty printing attribute values). I'll reapply when the other one is in.

llvm-svn: 217183
2014-09-04 18:55:46 +00:00
Frederic Riss a3f54f211e [dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()
Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5193

llvm-svn: 217182
2014-09-04 18:40:23 +00:00
Craig Topper c10719f55d [C++11] Make use of 'nullptr' in the Support library.
llvm-svn: 205697
2014-04-07 04:17:22 +00:00
Benjamin Kramer 2151e63c71 Dwarf: Fix a copy-paste bug.
This tag isn't emitted by any compiler at the moment. PR18306.

llvm-svn: 197877
2013-12-22 10:23:23 +00:00
Adrian Prantl 31631e4a47 Pull in a couple of new constants from the upcoming DWARF 5 standard.
llvm-svn: 197611
2013-12-18 21:48:14 +00:00
Richard Mitton 0aafb58aca Formally added an explicit enum for DWARF TLS support. No functionality change.
llvm-svn: 192118
2013-10-07 18:39:18 +00:00
David Blaikie efd0bcb70f DebugInfo: GDBIndexEntry*String conversion functions now return const char* for easy llvm::formating
This was previously invoking UB by passing a user-defined type to
format. Thanks to Jordan Rose for pointing this out.

llvm-svn: 191060
2013-09-20 00:33:15 +00:00
David Blaikie d0a869d0bf DebugInfo: Improve IR annotation comments for GNU pubthings.
llvm-svn: 191043
2013-09-19 22:19:37 +00:00
David Blaikie 8dec407649 Unshift the GDB index/GNU pubnames constants modified in r191025
Based on code review feedback from Eric Christopher, unshifting these
constants as they can appear in the gdb_index itself, shifted a further
24 bits. This means that keeping them preshifted is a bit inflexible, so
let's not do that.

Given the motivation, wrap up some nicer enums, more type safety, and
some utility functions.

llvm-svn: 191035
2013-09-19 20:40:26 +00:00
Eric Christopher add00faa96 Add constant defines for gnu pubnames and gnu pubtypes - they're used
for the gdb index as the names convey.

llvm-svn: 190343
2013-09-09 20:03:11 +00:00
Eric Christopher cf7289f6d9 Move accelerator table defines and constants to Dwarf.h since
we're proposing it for DWARF5.

No functional change intended.

llvm-svn: 190074
2013-09-05 18:20:16 +00:00
Eric Christopher 4202633ea6 Formatting.
llvm-svn: 190019
2013-09-05 00:22:35 +00:00
Eric Christopher 8e46e7f04b Add DW_AT_GNU_odr_signature to the set of dwarf attributes.
llvm-svn: 186296
2013-07-14 22:02:31 +00:00
Eli Bendersky 705085da37 Previously, parsing capability of the .debug_frame section was added
to lib/DebugInfo, with dumping in llvm-dwarfdump. This patch adds
initial ability to parse and dump CFA instructions contained in
entries.

To keep it manageable, the patch omits some more advanced capabilities
(accounted in TODOs):

* Parsing of instructions with BLOCK arguments (expression lists)
* Dumping of actual instruction arguments (currently only names are
dumped). This is quite tricky since the dumper has to effectively
"interpret" the instructions.

llvm-svn: 175820
2013-02-21 22:53:19 +00:00
Eric Christopher 72a529566c Remove the llvm-local DW_TAG_vector_type tag and add a test to
make sure that vector types do work.

llvm-svn: 171833
2013-01-08 01:53:52 +00:00
Eric Christopher 9948d5eb6f Remove what appears to be a dead llvm-specific debug tag.
llvm-svn: 171821
2013-01-08 00:16:33 +00:00
Bill Wendling 3d7b0b8ac7 Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.
llvm-svn: 170502
2012-12-19 07:18:57 +00:00
Eric Christopher c7e43fffc5 Add support for fission attributes/forms/operations -> string.
llvm-svn: 169056
2012-11-30 23:20:43 +00:00
Eric Christopher c13fd6d1e1 Lowercase the tag name to match the rest of dwarf.
llvm-svn: 153691
2012-03-29 21:35:05 +00:00
Devang Patel 839515b64d Add new tag and an attribute to support debug info for objective-c property.
llvm-svn: 149724
2012-02-03 23:57:08 +00:00
Nick Lewycky ee674b3e3b Add some more DWARF extensions from:
1. http://gcc.gnu.org/wiki/TemplateParmsDwarf
2. ftp://ftp.software.ibm.com/software/os390/czos/dwarf/mips_extensions.pdf

llvm-svn: 139784
2011-09-15 05:21:03 +00:00
Nick Lewycky 34368124aa Update Dwarf enums list for DWARF 4.
Note that DW_TAG_rvalue_reference_type is officially 0x42, not 0x41.

llvm-svn: 139779
2011-09-15 04:23:44 +00:00
Devang Patel b5a07abe94 Add DW_ATE_UTF, which clang started using in my previous commit!
llvm-svn: 139503
2011-09-12 17:18:20 +00:00
Devang Patel 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