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Commit Graph

50 Commits

Author SHA1 Message Date
Chandler Carruth
0b619fcc8e [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974
2015-01-14 11:23:27 +00:00
Adrian Prantl
49ffca0836 Implement a very basic colored syntax highlighting for llvm-dwarfdump.
The color scheme is the same as the one used by the colorize dwarfdump
script on Darwin.
A new --color option can be used to forcibly turn color on or off.

http://reviews.llvm.org/D6852

llvm-svn: 225269
2015-01-06 16:50:25 +00:00
Frederic Riss
825dc03e81 [DebugInfo] Move all DWARF headers to the public include directory.
dsymutil needs access to DWARF specific inforamtion, the small DIContext
wrapper isn't sufficient. Other DWARF consumers might want to use it too
(I'm looking at you lldb).

Differential Revision: http://reviews.llvm.org/D6694

llvm-svn: 224594
2014-12-19 18:26:33 +00:00
Michael Ilseman
dd56e9aa72 Silence more static analyzer warnings.
Add in definedness checks for shift operators, null checks when
pointers are assumed by the code to be non-null, and explicit
unreachables.

llvm-svn: 224255
2014-12-15 18:48:43 +00:00
Frederic Riss
5be0c9358b [dwarfdump] Dump DW_AT_ranges values inline in the debug_info dump.
The output looks like that:
                      DW_AT_ranges [FORM_data4]    (0x00000000
                         [0x00000001000024a0 - 0x00000001000024c2)
                         [0x0000000100002505 - 0x000000010000268b))

Differential Revision: http://reviews.llvm.org/D5712

llvm-svn: 220466
2014-10-23 04:08:34 +00:00
Frederic Riss
4fb56689c8 [dwarfdump] Prettyprint DW_AT_APPLE_property_attribute bitfield values.
This change depends on the ApplePropertyString helper that I sent spearately.
Not sure how you want this tested: as a tool test by adding a binary to dump, or as an llvm test starting from an IR file?

Reviewers: dblaikie, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5689

llvm-svn: 219507
2014-10-10 15:51:10 +00:00
Frederic Riss
a31ecb1fa2 [dwarfdump] Resolve also variable specifications/abstract_origins.
DW_AT_specification and DW_AT_abstract_origin resolving was only performed
on subroutine DIEs because it used the getSubroutineName method. Introduce
a more generic getName() and use it to dump the reference attributes.

Testcases have been updated to check the printed names instead of the offsets
except when the name could be ambiguous.

Reviewers: dblaikie, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5625

llvm-svn: 219506
2014-10-10 15:51:02 +00:00
Frederic Riss
01fe0d04e1 [dwarfdump] Print the name for referenced specification of abstract_origin DIEs.
Reviewers: dblaikie, samsonov, echristo, aprantl

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5466

llvm-svn: 219099
2014-10-06 03:36:31 +00:00
Frederic Riss
bfc90ed2e1 [dwarfdump] Dump full filenames as DW_AT_(decl|call)_file attribute values
Reviewers: dblaikie samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5192

llvm-svn: 218246
2014-09-22 12:36:04 +00:00
Frederic Riss
d6f638ebe4 Allow DWARFDebugInfoEntryMinimal::getSubroutineName to resolve cross-unit references.
Summary: getSubroutineName is currently only used by llvm-symbolizer, thus add a binary test containing a cross-cu inlining example.

Reviewers: samsonov, dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5394

llvm-svn: 218245
2014-09-22 12:35:53 +00:00
Frederic Riss
d3d3c64d38 [dwarfdump] Dump DW_AT_(decl|call)_line attribute values as decimal values.
llvm-svn: 217232
2014-09-05 07:21:50 +00:00
Frederic Riss
f08f2cafec [ 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
Alexey Samsonov
7ef493d27f [DWARF parser] Use distinction between DW_AT_ranges_base and DW_AT_GNU_ranges_base instead of DWARF version
llvm-svn: 210945
2014-06-13 22:31:03 +00:00
Alexey Samsonov
53674245eb [DWARF parser] Teach DIContext to fetch short (non-linkage) function names for a given address.
Change --functions option in llvm-symbolizer tool to accept
values "none", "short" or "linkage". Update the tests and docs
accordingly.

llvm-svn: 209050
2014-05-17 00:07:48 +00:00
Alexey Samsonov
19e01d8ebe [DWARF parser] Use enums instead of bitfields in DILineInfoSpecifier.
It is more appropriate than the current situation, when one flag
(AbsoluteFilePath) is relevant only if another flag is set.

This refactoring would also simplify fetching the short function name
(stored in DW_AT_name) instead of a linkage name returned currently.

No functionality change.

llvm-svn: 208921
2014-05-15 21:24:32 +00:00
Benjamin Kramer
cbe7245a0f DebugInfo: Remove some initializer lists to make MSVC happy again.
llvm-svn: 206632
2014-04-18 19:01:53 +00:00
Alexey Samsonov
ea5a42fe9c [DWARF parser] Refactor fetching DIE address ranges.
Add a helper method to get address ranges specified in a DIE
(either by DW_AT_low_pc/DW_AT_high_pc, or by DW_AT_ranges). Use it
to untangle and simplify the code.

No functionality change.

llvm-svn: 206624
2014-04-18 17:25:46 +00:00
Craig Topper
c2260fc0ab [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.
llvm-svn: 206252
2014-04-15 06:32:26 +00:00
Alexey Samsonov
740617d186 [C++11] Convert DWARF parser to range-based for loops
llvm-svn: 203766
2014-03-13 07:52:54 +00:00
Alexey Samsonov
7b56aa1648 Merge DWARFDIE::extractFast and DWARFDIE::extract into one function.
Complicated CU-DIE-specific logic in the latter was never used,
and it makes sense to have safety checks for broken dwarf in the former.

llvm-svn: 193563
2013-10-28 23:58:58 +00:00
Alexey Samsonov
08970d884d DWARF parser: Use ArrayRef to represent form sizes and simplify DWARFDIE::extractFast() interface. No functionality change.
llvm-svn: 193560
2013-10-28 23:41:49 +00:00
Alexey Samsonov
6421cac301 DWARF parser: since DWARF4, DW_AT_high_pc may be a constant representing function size
llvm-svn: 193555
2013-10-28 23:15:15 +00:00
Alexey Samsonov
c8dd7e63e8 DebugInfo: Introduce the notion of "form classes"
Summary:
Use DWARF4 table of form classes to fetch attributes from DIE
in a more consistent way. This shouldn't change the functionality and
serves as a refactoring for upcoming change: DW_AT_high_pc has different
semantics depending on its form class.

Reviewers: dblaikie, echristo

Reviewed By: echristo

CC: echristo, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1961

llvm-svn: 193553
2013-10-28 23:01:48 +00:00
Alexey Samsonov
9568db6ca5 [DebugInfo] Delete dead code, simplify and fix code style for some existing code. No functionality change.
llvm-svn: 192894
2013-10-17 13:28:16 +00:00
David Blaikie
641c46dab7 Exract most of DWARFCompileUnit into a new DWARFUnit to prepare for the coming DWARFTypeUnit.
llvm-svn: 191233
2013-09-23 22:44:40 +00:00
Alexey Samsonov
349607af6f Add support for DebugFission to DWARF parser
Summary:
1) Make llvm-symbolizer properly symbolize
files with split debug info (by using stanalone .dwo files).
2) Make DWARFCompileUnit parse and store corresponding .dwo file,
if necessary.
3) Make bits of DWARF parsing more CompileUnit-oriented.

Reviewers: echristo

Reviewed By: echristo

CC: bkramer, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1164

llvm-svn: 189329
2013-08-27 09:20:22 +00:00
David Blaikie
c5c33c4a15 llvm-dwarfdump: Do not include address offsets for attributes, only for tags
This reduces the noise in diffs making it more likely that, at least for
LLVM revision-over-revision, diffs will actually yield usable results.

This is consistent with objdump's DWARF dumping behavior.

llvm-svn: 188650
2013-08-19 03:36:23 +00:00
Alexey Samsonov
72db336586 Store compile unit corresponding to each chain of inlined debug info entries. No functionality change.
llvm-svn: 187792
2013-08-06 10:49:15 +00:00
Alexey Samsonov
542f535116 Create a stub for DWARF parser unittests
Moves one DWARF-specific header to include/llvm/DebugInfo from lib/.
Add a short unittest for r179095.

llvm-svn: 179678
2013-04-17 08:29:02 +00:00
Alexey Samsonov
5a62adc696 DWARF parser: remove duplicated code and fix code style in DIE extractors.
llvm-svn: 179023
2013-04-08 14:37:16 +00:00
Eric Christopher
bd3c66b31a Fix the assembly and dissassembly of DW_FORM_sec_offset. Found this by
changing both the string of the dwo_name to be correct and the type of
the statement list.

Testcases all around.

llvm-svn: 172699
2013-01-17 03:00:04 +00:00
Eric Christopher
ba738518f0 Add support for separating strings for the split debug info DWARF5
proposal. This leaves the strings in the skeleton die as strp,
but in all dwo files they're accessed now via DW_FORM_GNU_str_index.

Add support for dumping these sections and modify the fission-cu.ll
testcase to have the correct strings and form. Fix a small bug
in the fixed form sizes routine that involved out of array accesses
for the table and add a FIXME in the extractFast routine to fix
this up.

llvm-svn: 171779
2013-01-07 19:32:41 +00:00
Eric Christopher
e8b74437f7 Update comment.
llvm-svn: 171689
2013-01-07 03:27:58 +00:00
Eric Christopher
03fdb543d9 Extend the dumping infrastructure to deal with additional
sections for debug info. These are some of the dwo sections from the
DWARF5 split debug info proposal. Update the fission-cu.ll testcase
to show what we should be able to dump more of now.

Work in progress: Ultimately the relocations will be gone for the
dwo section and the strings will be a different form (as well as
the rest of the sections will be included).

llvm-svn: 171428
2013-01-02 23:52:13 +00:00
Eric Christopher
1dcc1b0cdc Reformat and 80-column this. It's not strictly conforming
yet, but it's better.

llvm-svn: 167053
2012-10-30 21:36:43 +00:00
Alexey Samsonov
0dd3d6f49e Add support for fetching inlining context (stack of source code locations)
by instruction address from DWARF.

Add --inlining flag to llvm-dwarfdump to demonstrate and test this functionality,
so that "llvm-dwarfdump --inlining --address=0x..." now works much like
"addr2line -i 0x...", provided that the binary has debug info
(Clang's -gline-tables-only *is* enough).

llvm-svn: 163128
2012-09-04 08:12:33 +00:00
Eric Christopher
742a44014e Add support for some missing DW_FORM_*.
TODO: Fix code duplication and coding style.
llvm-svn: 162525
2012-08-24 01:14:23 +00:00
Eric Christopher
2ab028ca0f Formatting.
llvm-svn: 162524
2012-08-24 01:14:21 +00:00
Eric Christopher
524510c805 80-col.
llvm-svn: 162422
2012-08-23 00:52:51 +00:00
Alexey Samsonov
5204605486 Improve behavior of DebugInfoEntryMinimal::getSubprogramName() introduced in r159512.
To fetch a subprogram name we should not only inspect the DIE for this subprogram, but optionally inspect
its specification, or its abstract origin (even if there is no inlining), or even specification of an abstract origin.

Reviewed by Benjamin Kramer.

llvm-svn: 160365
2012-07-17 15:28:35 +00:00
Alexey Samsonov
2e5d156c11 This patch extends the libLLVMDebugInfo which contains a minimalistic DWARF parser:
1) DIContext is now able to return function name for a given instruction address (besides file/line info).
2) llvm-dwarfdump accepts flag --functions that prints the function name (if address is specified by --address flag).
3) test case that checks the basic functionality of llvm-dwarfdump added

llvm-svn: 159512
2012-07-02 05:54:45 +00:00
David Blaikie
06ecc99a56 More dead code removal (using -Wunreachable-code)
llvm-svn: 148578
2012-01-20 21:51:11 +00:00
Benjamin Kramer
638df7f8c4 Reduce the offsets in DwarfDebugInfoEntry to 32 bit, they're printed with %x and
that breaks on big-endian machines.

I have to clean up the 32/64 bit confusion in libDebugInfo some day.

llvm-svn: 143812
2011-11-05 15:35:00 +00:00
Benjamin Kramer
900209189c DWARF: wire up .debug_str dumping.
llvm-svn: 139799
2011-09-15 16:57:13 +00:00
Benjamin Kramer
346abfde05 DWARF: Make DIE printing more bulletproof.
llvm-svn: 139786
2011-09-15 05:43:00 +00:00
Benjamin Kramer
00648a5c53 DWARF: Generate the address lookup table from the DIE tree if .debug_aranges is not available.
Ported from LLDB.

llvm-svn: 139732
2011-09-14 20:52:27 +00:00
Benjamin Kramer
fd97743d22 DWARF: Improve indentation of DIE dumping so it's easier to see the structure.
llvm-svn: 139705
2011-09-14 17:54:56 +00:00
Benjamin Kramer
62f1c110f1 DebugInfo: Don't print DIEs multiple times.
llvm-svn: 139671
2011-09-14 00:15:32 +00:00
Benjamin Kramer
c592744658 Style & indentation tweaks.
llvm-svn: 139646
2011-09-13 21:47:32 +00:00
Benjamin Kramer
c4e7a56915 Sketch out a DWARF parser.
This introduces a new library to LLVM: libDebugInfo. It will provide debug information
parsing to LLVM. Much of the design and some of the code is taken from the LLDB project.

It also contains an llvm-dwarfdump tool that can dump the abbrevs and DIEs from an
object file. It can be used to write tests for DWARF input and output easily.

llvm-svn: 139627
2011-09-13 19:42:23 +00:00