Commit Graph

29 Commits

Author SHA1 Message Date
Eric Christopher
b77d05f0b5 Temporarily Revert "[Dsymutil][Debuginfo][NFC] Refactor dsymutil to separate DWARF optimizing part 2."
as it causes a layering violation/dependency cycle:

llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp -> llvm/DebugInfo/DWARF/DWARFExpression.h
llvm/include/llvm/DebugInfo/DWARF/DWARFOptimizer.h -> llvm/CodeGen/NonRelocatableStringpool.h

This reverts commit abc7f6800df8a1f40e1e2c9ccce826abb0208284.
2019-12-19 13:29:02 -08:00
Alexey Lapshin
5f91f4a7e0 [Dsymutil][Debuginfo][NFC] Refactor dsymutil to separate DWARF optimizing part 2.
That patch is extracted from the D70709. It moves CompileUnit, DeclContext
into llvm/DebugInfo/DWARF. It also adds new file DWARFOptimizer with
AddressesMap class. AddressesMap generalizes functionality
from RelocationManager.

Differential Revision: https://reviews.llvm.org/D71271
2019-12-19 15:41:48 +03:00
Tom Stellard
28bf7f3536 [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"
Summary:
Most libraries are defined in the lib/ directory but there are also a
few libraries defined in tools/ e.g. libLLVM, libLTO.  I'm defining
"Component Libraries" as libraries defined in lib/ that may be included in
libLLVM.so.  Explicitly marking the libraries in lib/ as component
libraries allows us to remove some fragile checks that attempt to
differentiate between lib/ libraries and tools/ libraires:

1. In tools/llvm-shlib, because
llvm_map_components_to_libnames(LIB_NAMES "all") returned a list of
all libraries defined in the whole project, there was custom code
needed to filter out libraries defined in tools/, none of which should
be included in libLLVM.so.  This code assumed that any library
defined as static was from lib/ and everything else should be
excluded.

With this change, llvm_map_components_to_libnames(LIB_NAMES, "all")
only returns libraries that have been added to the LLVM_COMPONENT_LIBS
global cmake property, so this custom filtering logic can be removed.
Doing this also fixes the build with BUILD_SHARED_LIBS=ON
and LLVM_BUILD_LLVM_DYLIB=ON.

2. There was some code in llvm_add_library that assumed that
libraries defined in lib/ would not have LLVM_LINK_COMPONENTS or
ARG_LINK_COMPONENTS set.  This is only true because libraries
defined lib lib/ use LLVMBuild.txt and don't set these values.
This code has been fixed now to check if the library has been
explicitly marked as a component library, which should now make it
easier to remove LLVMBuild at some point in the future.

I have tested this patch on Windows, MacOS and Linux with release builds
and the following combinations of CMake options:

- "" (No options)
- -DLLVM_BUILD_LLVM_DYLIB=ON
- -DLLVM_LINK_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_BUILD_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_LINK_LLVM_DYLIB=ON

Reviewers: beanz, smeenai, compnerd, phosek

Reviewed By: beanz

Subscribers: wuzish, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, mgorny, mehdi_amini, sbc100, jgravelle-google, hiraditya, aheejin, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, steven_wu, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, jocewei, jsji, dang, Jim, lenary, s.egerton, pzheng, sameer.abuasal, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70179
2019-11-21 10:48:08 -08:00
Pavel Labath
ed1ed38a5b Add streaming/equality operators to DWARFAddressRange/DWARFLocationExpression
The main motivation for this is being able to write simpler assertions
and get better error messages in unit tests.

Split off from D70394.
2019-11-19 10:34:30 +01:00
David Blaikie
7f4c6fd59c DebugInfo: Remove unnecessary/mistaken inclusion of Bitcode/BitcodeAnalyzer.h
Introduced in r374582, Michael Spencer pointed out this broke the
modules build due to a missing tblgen dependency on
llvm/IR/Attributes.inc.

Michael fixed the dependency in r374827.

So this removes the inclusion and the new dependency (effectively
reverting r374827 and including the alternative fix of removing rather
than supporting the new dependency).

Thanks for the quick fix/notice, Michael!

llvm-svn: 374831
2019-10-14 22:12:45 +00:00
Michael J. Spencer
4f701940d4 [Modules Build] Add missing dependency.
A previous commit made libLLVMDebugInfoDWARF depend on the LLVM_Bitcode module which depends on the LLVM_intrinsic_gen module which depends on "llvm/IR/Attributes.inc" which is a generated header not depended on by libLLVMDebugInfo. Add that dependency.

llvm-svn: 374827
2019-10-14 21:53:51 +00:00
Wolfgang Pieb
6d4fe5ce73 [DWARF] Revert r345546: Refactor range list extraction and dumping
This patch caused some internal tests to break which are being investigated.

llvm-svn: 345687
2018-10-31 01:12:58 +00:00
Wolfgang Pieb
c28a9a9ad8 [DWARF][NFC] Refactor range list extraction and dumping
The purpose of this patch is twofold: 
- Fold pre-DWARF v5 functionality into v5 to eliminate the need for 2 different 
  versions of range list handling. We get rid of DWARFDebugRangelist{.cpp,.h}.
- Templatize the handling of range list tables so that location list handling
  can take advantage of it as well. Location list and range list tables have the 
  same basic layout.

A non-NFC version of this patch was previously submitted with r342218, but it caused
errors with some TSan tests. This patch has no functional changes. The difference to
the non-NFC patch is that there are no changes to rangelist dumping in this patch.

Differential Revision: https://reviews.llvm.org/D53545

llvm-svn: 345546
2018-10-29 22:16:47 +00:00
Alexander Kornienko
18af7cf9e1 Revert "[DWARF] reposting r342048, which was reverted in r342056 due to buildbot errors. Adjusted 2 test cases for ARM and darwin and fixed a bug with the original change in dsymutil."
This reverts commit r342218. Due to a number of failures under TSAN. An isolated
test case is being worked on.

llvm-svn: 342399
2018-09-17 15:40:01 +00:00
Wolfgang Pieb
6bdfbde5c7 [DWARF] reposting r342048, which was reverted in r342056 due to buildbot
errors.
Adjusted 2 test cases for ARM and darwin and fixed a bug with the original
change in dsymutil.

llvm-svn: 342218
2018-09-14 09:14:10 +00:00
Wolfgang Pieb
0150bc5cfd Reverting r342048, which caused UBSan failures in dsymutil.
llvm-svn: 342056
2018-09-12 14:40:04 +00:00
Wolfgang Pieb
c366257a21 [DWARF] Refactoring range list dumping to fold DWARF v4 functionality into v5 handling
Eliminating some duplication of rangelist dumping code at the expense of
some version-dependent code in dump and extract routines.

Reviewer: dblaikie, JDevlieghere, vleschuk

Differential revision: https://reviews.llvm.org/D51081

llvm-svn: 342048
2018-09-12 12:01:19 +00:00
Victor Leschuk
83ecc100c7 [DWARF] Support for .debug_addr (consumer)
This patch implements basic support for parsing
  and dumping DWARFv5 .debug_addr section.

llvm-svn: 338447
2018-07-31 22:19:19 +00:00
Wolfgang Pieb
f9accd722f [DWARF v5] Refactor range lists dumping by using a more generic way of handling tables of lists.
The intent is to use it for location list tables as well. Change is almost NFC with the exception
of the spelling of some strings used during dumping (all lowercase now).

Reviewer: JDevlieghere

Differential Revision: https://reviews.llvm.org/D49500

llvm-svn: 337763
2018-07-23 22:37:17 +00:00
Jonas Devlieghere
434c32b43d [Support] Move syntax highlighting into support
Move the DWARF syntax highlighting into support. This has several
advantages, most notably that this makes the WithColor RAII wrapper
available outside libDebugInfo. Furthermore, several projects all have
their own code for handling colored output. This provides a place to
centralize it.

Differential revision: https://reviews.llvm.org/D44215

llvm-svn: 327108
2018-03-09 09:56:24 +00:00
James Henderson
2213d809e1 [DWARF v5] Add limited support for dumping .debug_rnglists
This change adds support to llvm-dwarfdump for dumping DWARF5
.debug_rnglists sections in regular ELF files.

It is not complete, in that several DW_RLE_* encodings are currently
not supported, but does dump the headert and the basic ranges for
DW_RLE_start_length and DW_RLE_start_end encodings.

Obvious next steps are to add verbose dumping that dumps the raw
encodings, rather than the interpreted contents, to add -verify support
of the section (e.g. to show that the correct number of offsets are
specified), add dumping of .debug_rnglists.dwo, and to add support for
other encodings.

Reviewed by: dblaikie, JDevlieghere

Differential Revision: https://reviews.llvm.org/D42481

llvm-svn: 324077
2018-02-02 12:35:52 +00:00
Reid Kleckner
96e8543691 [dwarfdump] Pretty print location expressions and location lists
Summary:
Based on Fred's patch here: https://reviews.llvm.org/D6771

I can't seem to commandeer the old review, so I'm creating a new one.

With that change the locations exrpessions are pretty printed inline in the
DIE tree. The output looks like this for debug_loc entries:

    DW_AT_location [DW_FORM_data4]        (0x00000000
       0x0000000000000001 - 0x000000000000000b: DW_OP_consts +3
       0x000000000000000b - 0x0000000000000012: DW_OP_consts +7
       0x0000000000000012 - 0x000000000000001b: DW_OP_reg0 RAX, DW_OP_piece 0x4
       0x000000000000001b - 0x0000000000000024: DW_OP_breg5 RDI+0)

And like this for debug_loc.dwo entries:
    DW_AT_location [DW_FORM_sec_offset]   (0x00000000
      Addr idx 2 (w/ length 190): DW_OP_consts +0, DW_OP_stack_value
      Addr idx 3 (w/ length 23): DW_OP_reg0 RAX, DW_OP_piece 0x4)

Simple locations without ranges are printed inline:

   DW_AT_location [DW_FORM_block1]       (DW_OP_reg4 RSI, DW_OP_piece 0x4, DW_OP_bit_piece 0x20 0x0)

The debug_loc(.dwo) dumping in changed accordingly to factor the code.

Reviewers: dblaikie, aprantl, friss

Subscribers: mgorny, javed.absar, hiraditya, llvm-commits, JDevlieghere

Differential Revision: https://reviews.llvm.org/D37123

llvm-svn: 312042
2017-08-29 21:41:21 +00:00
Paul Robinson
d4260a6777 [DWARF] NFC: DWARFDataExtractor combines relocs with DataExtractor.
Requires callers to directly associate relocations with a DataExtractor
used to read data from a DWARF section, which helps a callee not make
assumptions about which section it is reading.
This is the next step in reducing DWARFFormValue's dependence on DWARFUnit.

Differential Revision: https://reviews.llvm.org/D34704

llvm-svn: 306699
2017-06-29 16:52:08 +00:00
Greg Clayton
d7698e76b9 Create DWARFVerifier.cpp and .h and move all DWARF verification code over into it.
Adrian requested we create a DWARFVerifier.cpp file to contain all of the DWARF verification stuff. This change simply moves the functionality over into DWARFVerifier.h and DWARFVerifier.cpp, renames the DWARFVerifier methods to start with lower case, and switches DWARFContext.cpp over to using the new functionality.

Differential Revision: https://reviews.llvm.org/D32809

llvm-svn: 302044
2017-05-03 16:02:29 +00:00
George Rimar
3cb9279644 [DWARF] - Introduce DWARFDebugPubTable class for dumping pub* sections.
Patch implements parser of pubnames/pubtypes tables instead of static 
function used before. It is now should be possible to reuse it
in LLD or other projects and clean up the duplication code.

Differential revision: https://reviews.llvm.org/D27851

llvm-svn: 290040
2016-12-17 09:10:32 +00:00
Greg Clayton
18fb71a6df Make a DWARFDIE class that can help avoid using the wrong DWARFUnit when extracting attributes
Many places pass around a DWARFDebugInfoEntryMinimal and a DWARFUnit. It is easy to get things wrong by using the wrong DWARFUnit with a DWARFDebugInfoEntryMinimal. This patch creates a DWARFDie class that contains the DWARFUnit and DWARFDebugInfoEntryMinimal objects so that they can't get out of sync. All attribute extraction has been moved out of DWARFDebugInfoEntryMinimal and into DWARFDie. DWARFDebugInfoEntryMinimal was also renamed to DWARFDebugInfoEntry.

DWARFDie objects are temporary objects that are used by clients and contain 2 pointers that you always need to have anyway. Keeping them grouped will avoid errors and simplify many of the attribute extracting APIs by not having to pass in a DWARFUnit.

Differential Revision: https://reviews.llvm.org/D27634

llvm-svn: 289565
2016-12-13 18:25:19 +00:00
George Rimar
7d417985b0 Revert r282238 "Revert r282235 "[llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section.""
Build bot issues (http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/15856/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dump-gdbindex.test)
should be fixed in that version. Issue was that MSVS does not support "%zu". Though it works fine on MSCS 2015,
Bot looks running MSVS 2013 that does not like it. MSDN also says that "z" prefix is not supported: https://msdn.microsoft.com/en-us/library/tcxf1dw6.aspx
I had to use PRId64 instead.

Original commit message:

[llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section.

gold linker's --gdb-index option currently is able to create the .gdb_index section that allows GDB to locate and read the .dwo files as it needs them,
this helps reduce the total size of the object files processed by the linker.

More info about that:
https://gcc.gnu.org/wiki/DebugFission
https://sourceware.org/gdb/onlinedocs/gdb/Index-Section-Format.html

Patch teaches dwarfdump tool to dump this section.

Differential revision: https://reviews.llvm.org/D21503

llvm-svn: 282239
2016-09-23 11:01:53 +00:00
George Rimar
e4c65e9b9b Revert r282235 "[llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section."
It broke BB:
http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/15856

llvm-svn: 282238
2016-09-23 10:12:56 +00:00
George Rimar
7dd3eaf20c [llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section.
gold linker's --gdb-index option currently is able to create the .gdb_index section that allows GDB to locate and read the .dwo files as it needs them,
this helps reduce the total size of the object files processed by the linker.

More info about that:
https://gcc.gnu.org/wiki/DebugFission
https://sourceware.org/gdb/onlinedocs/gdb/Index-Section-Format.html

Patch teaches dwarfdump tool to dump this section.

Differential revision: https://reviews.llvm.org/D21503

llvm-svn: 282235
2016-09-23 09:09:26 +00:00
Amjad Aboud
e2bb8d73ce 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
David Blaikie
cc1f2e9afd dwarfdump: First piece of support for DWP dumping
Just a tiny piece of index dumping - the header in this instance.

llvm-svn: 252781
2015-11-11 19:28:21 +00:00
Zachary Turner
c307249d18 Move DIContext.h to common DebugInfo location.
This will enable us to create a PDBContext so as to expose some
amount of debug info functionality through a common interace.

Differential Revision: http://reviews.llvm.org/D9205
Reviewed by: Alexey Samsonov

llvm-svn: 235612
2015-04-23 17:37:47 +00:00
Zachary Turner
76143c865c Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.
This allows IDEs to recognize the entire set of header files for
each of the core LLVM projects.

Differential Revision: http://reviews.llvm.org/D7526
Reviewed By: Chris Bieneman

llvm-svn: 228798
2015-02-11 03:28:02 +00:00
Zachary Turner
9a7f59f9ea Move DebugInfo to DebugInfo/DWARF.
In preparation for adding PDB support to LLVM, this moves the
DWARF parsing code to its own subdirectory under DebugInfo, and
renames LLVMDebugInfo to LLVMDebugInfoDWARF.

This is purely a mechanical / build system change.

Differential Revision: http://reviews.llvm.org/D7269
Reviewed by: Eric Christopher

llvm-svn: 227586
2015-01-30 18:07:45 +00:00