Commit Graph

13 Commits

Author SHA1 Message Date
Igor Kudrin 991f0fb149 [DWARF] Support DWARF64 in DWARFListTableHeader.
This enables 64-bit DWARF support for parsing range and location list tables.

Differential Revision: https://reviews.llvm.org/D66643

llvm-svn: 371014
2019-09-05 06:49:05 +00:00
Igor Kudrin f26a70a5e7 Switch LLVM to use 64-bit offsets (2/5)
This updates all libraries and tools in LLVM Core to use 64-bit offsets
which directly or indirectly come to DataExtractor.

Differential Revision: https://reviews.llvm.org/D65638

llvm-svn: 368014
2019-08-06 10:49:40 +00:00
Igor Kudrin 3daefb0744 [DWARF][NFC] Add constants for reserved values of an initial length field.
Differential Revision: https://reviews.llvm.org/D65039

llvm-svn: 366887
2019-07-24 11:34:29 +00:00
Alex Bradbury 44deaf7e54 [DWARF][RISCV] Add support for RISC-V relocations needed for debug info
When code relaxation is enabled many RISC-V fixups are not resolved but
instead relocations are emitted. This happens even for DWARF debug
sections. Therefore, to properly support the parsing of DWARF debug info
we need to be able to resolve RISC-V relocations. This patch adds:

* Support for RISC-V relocations in RelocationResolver
* DWARF support for two relocations per object file offset
* DWARF changes to support relocations in more DIE fields

The two relocations per offset change is needed because some RISC-V
relocations (used for label differences) come in pairs.

Relocations can also be emitted for DWARF fields where relocations were
not yet evaluated. Adding relocation support for some of these fields is
essencial. On the other hand, LLVM currently emits RISC-V relocations
for fixups that could be safely evaluated, since they can never be
affected by code relaxations. This patch also adds relocation support
for the fields affected by those extraneous relocations (the DWARF unit
entry Length, and the DWARF debug line entry TotalLength and
PrologueLength), for testing purposes.

Differential Revision: https://reviews.llvm.org/D62062
Patch by Luís Marques.

llvm-svn: 366402
2019-07-18 05:22:55 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Wolfgang Pieb f39a9bbe72 [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 fb6cffca09 [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 e74e0f11d1 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 55dbac9f07 [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 233bc73047 Reverting r342048, which caused UBSan failures in dsymutil.
llvm-svn: 342056
2018-09-12 14:40:04 +00:00
Wolfgang Pieb 3a8781cf6c [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 cba595da82 [DWARF] Refactor DWARF classes to use unified error reporting. NFC.
DWARF-related classes in lib/DebugInfo/DWARF contained 
duplicating code for creating StringError instances, like:

template <typename... Ts>
static Error createError(char const *Fmt, const Ts &... Vals) {
  std::string Buffer;
  raw_string_ostream Stream(Buffer);
  Stream << format(Fmt, Vals...);
  return make_error<StringError>(Stream.str(), inconvertibleErrorCode());
}

Similar function was placed in Support lib in https://reviews.llvm.org/D49824

This revision makes DWARF classes use this function
instead of their local implementation of it.

Reviewers: aprantl, dblaikie, probinson, wolfgangp, JDevlieghere, jhenderson

Reviewed By: JDevlieghere, jhenderson

Differential Revision: https://reviews.llvm.org/D49964

llvm-svn: 340163
2018-08-20 09:59:08 +00:00
Wolfgang Pieb 439801ba1d [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