This patch adds a variety of different methods to query source
and line number information from PDB files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261239 91177308-0d34-0410-b5e6-96231b3b80d8
Also implements the PDBSymbolCompilandEnv::getValue() method,
which until now had been unimplemented specifically because
variant did not support string values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261173 91177308-0d34-0410-b5e6-96231b3b80d8
Every symbol, no matter what it's tag is, supports the method
getSymIndexId(). However, this was being forwarded on every
concrete symbol type, so if someone had a PDBSymbol that they
didn't know what type it was (or simply didn't have an instance
of the concrete symbol type), they would not be able to get its
index id. This patch moves the method up to PDBSymbol, so that
no matter what type of object you have, you can always get its
id.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261153 91177308-0d34-0410-b5e6-96231b3b80d8
The IDiaSymbol::getValue() method returns a variant. Until now,
I had never encountered a string value, so the Variant wrapper
did not support VT_BSTR. Now we have need to support string
values, so this patch just adds support for one extra type to
Variant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261152 91177308-0d34-0410-b5e6-96231b3b80d8
The waring was:
lib/DebugInfo/DWARF/DWARFDebugFrame.cpp:643:20: warning: variable ‘LSDA’ set but not used
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259877 91177308-0d34-0410-b5e6-96231b3b80d8
MCJIT emits zero-length CIE at the end of the _eh_frame section. This change
ensures that parser inside DebugInfo will not crash and correctly record such cases.
We are now recording DW_EH_PE_omit as a default value for FDE and LSDA encodings.
Also Offset != EndAugmentationOffset assertion check will only happen if augmentation
string had 'z' letter in it.
Differential Revision: http://reviews.llvm.org/D16588
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258931 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This patch is provided in preparation for removing autoconf on 1/26. The proposal to remove autoconf on 1/26 was discussed on the llvm-dev thread here: http://lists.llvm.org/pipermail/llvm-dev/2016-January/093875.html
"I felt a great disturbance in the [build system], as if millions of [makefiles] suddenly cried out in terror and were suddenly silenced. I fear something [amazing] has happened."
- Obi Wan Kenobi
Reviewers: chandlerc, grosbach, bob.wilson, tstellarAMD, echristo, whitequark
Subscribers: chfast, simoncook, emaste, jholewinski, tberghammer, jfb, danalbert, srhines, arsenm, dschuff, jyknight, dsanders, joker.eph, llvm-commits
Differential Revision: http://reviews.llvm.org/D16471
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258861 91177308-0d34-0410-b5e6-96231b3b80d8
Originally this change was causing failures on windows buildbots.
But those problems were fixed in r258806.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258811 91177308-0d34-0410-b5e6-96231b3b80d8
This rewrites and expands the existing codeview dumping functionality in
llvm-readobj using techniques similar to those in lib/Object. This defines a
number of new records and enums useful for reading memory mapped codeview
sections in COFF objects.
The dumper is intended as a testing tool for LLVM as it grows more codeview
output capabilities.
Reviewers: majnemer
Differential Revision: http://reviews.llvm.org/D16104
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257658 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
There are a number of files in the tree which have been accidentally checked in with DOS line endings. Convert these to native line endings.
There are also a few files which have DOS line endings on purpose, and I have set the svn:eol-style property to 'CRLF' on those.
Reviewers: joerg, aaron.ballman
Subscribers: aaron.ballman, sanjoy, dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D15848
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256707 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: This diff is the initial implementation of the LLVM CodeView library. There is much more work to be done, namely a CodeView dumper and tests. This patch should help others make progress on the LLVM->CodeView debug info emission while I continue with the implementation of the dumper and tests.
This library implements support for emitting debug info in the CodeView format. This phase of the implementation only includes support for CodeView type records. Clients that need to emit type records will use a class derived from TypeTableBuilder. TypeTableBuilder provides member functions for writing each kind of type record; each of these functions eventually calls the writeRecord virtual function to emit the actual bits of the record. Derived classes override writeRecord to implement the folding of duplicate records and the actual emission to the appropriate destination. LLVMCodeView provides MemoryTypeTableBuilder, which creates the table in memory. In the future, other classes derived from TypeTableBuilder will write to other destinations, such as the type stream in a PDB.
The rest of the types in LLVMCodeView define the actual CodeView type records and all of the supporting enums and other types used in the type records. The TypeIndex class is of particular interest, because it is used by clients as a handle to a type in the type table.
The library provides a relatively low-level interface based on the actual on-disk format of CodeView. For example, type records refer to other type records by TypeIndex, rather than by an actual pointer to the referent record. This allows clients to emit type records one at a time, rather than having to keep the entire transitive closure of type records in memory until everything has been emitted. At some point, having a higher-level interface layered on top of this one may be useful for debuggers and other tools that want a more holistic view of the debug info. The lower-level interface should be sufficient for compilers and linkers to do the debug info manipulation that they need to do efficiently.
Reviewers: rnk, majnemer
Subscribers: silvas, rnk, jevinskie, llvm-commits
Differential Revision: http://reviews.llvm.org/D14961
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256385 91177308-0d34-0410-b5e6-96231b3b80d8
This code changes the way Symbolize handles parsed binaries: now
parsed OwningBinary<Binary> is not broken into (binary, memory buffer)
pair, and is just stored as-is in a cache. ObjectFile components
of Mach-O universal binaries are also stored explicitly in a
separate cache.
Additionally, this change:
* simplifies the code that parses/caches binaries: it's now done
in a single place, not three different functions.
* makes flush() method behave as expected, and actually clear
the cached parsed binaries and objects.
* fixes a dangling pointer issue described in
http://reviews.llvm.org/D15638
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LLVM MC has single methods which can handle the output of EH frame and DWARF CIE's and FDE's.
This code improves DWARFDebugFrame::parse to do the same for parsing.
This also allows llvm-objdump to support the --dwarf=frames option which objdump supports. This
option dumps the .eh_frame section using the new code in DWARFDebugFrame::parse.
http://reviews.llvm.org/D15535
Reviewed by Rafael Espindola.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256008 91177308-0d34-0410-b5e6-96231b3b80d8
This is very rudimentary support for debug_cu_index, but it is enough to
allow llvm-dwarfdump to find the offsets for contributions and
correctly dump debug_info.
It will need to actually find the real signature of the unit and build
the real hash table with the right number of buckets, as per the DWP
specification.
It will also need to be expanded to cover the tu_index as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254489 91177308-0d34-0410-b5e6-96231b3b80d8
This is a recommit of 252842 which was reverted in 252859. The issue was
using %s format specifier for a StringRef - used Format's
left_justify(StringRef, int) instead.
It'd be nice to have __attribute__((format(..))) on llvm::format, but
apparently it's only implemented for c-style variadics, not C++ variadic
templates. Perhaps we could fix that & conditionalize the attribute on
such...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253065 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
PE files are stripped by default, and only contain the names of exported
symbols.
The actual reason that we bother to do this override by default is
actually due to a quirk of the way -gline-tables-only is implemented, so
I phrased the check as "if we are symbolizing from dwarf, do the symtab
override".
This fixes lots of Windows ASan tests that I broke in r250582.
Reviewers: samsonov
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14594
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253051 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce DIPrinter which takes care of rendering DILineInfo and
friends. This allows LLVMSymbolizer class to return a structured data
instead of plain std::strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251989 91177308-0d34-0410-b5e6-96231b3b80d8
