Commit Graph

9 Commits

Author SHA1 Message Date
Zachary Turner
d36e155be1 [llvm-pdbutil] Output the symbol offset when dumping.
Type records have a unique type index, but symbol records do
not.  Instead, symbol records refer to other symbol records
by referencing their offset in the symbol stream.  In a sense
this is the analogue of the TypeIndex, but we are not printing
it in the dumper.  Printing it not only gives us more useful
information when manually investigating the contents of a PDB,
but also allows us to write better tests by enabling us to
verify that fields that reference other symbol records do
so correctly.

Differential Revision: https://reviews.llvm.org/D34906

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306890 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-30 21:35:00 +00:00
Zachary Turner
254b4d2617 Refactor Symbol visitor code.
Type visitor code had already been refactored previously to
decouple the visitor and the visitor callback interface.  This
was necessary for having the flexibility to visit in different
ways (for example, dumping to yaml, reading from yaml, dumping
to ScopedPrinter, etc).

This patch merely implements the same visitation pattern for
symbol records that has already been implemented for type records.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283609 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-07 21:34:46 +00:00
Zachary Turner
b5689e754e [pdb] Get rid of Data and RawData in CVType.
The `CVType` had two redundant fields which were confusing and
error-prone to fill out.  By treating member records as a distinct
type from leaf records, we are able to simplify this quite a bit.

Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D24432

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281556 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-14 23:00:16 +00:00
Zachary Turner
92cd0ecb7f [CodeView] Use llvm::Error instead of std::error_code.
This eliminates the remnants of std::error_code from the
DebugInfo libraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277758 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-04 19:39:55 +00:00
Zachary Turner
5cfb6469b8 [pdb] Finish conversion to zero copy pdb access.
This converts remaining uses of ByteStream, which was still
left in the symbol stream and type stream, to using the new
StreamInterface zero-copy classes.

RecordIterator is finally deleted, so this is the only way left
now.  Additionally, more error checking is added when iterating
the various streams.

With this, the transition to zero copy pdb access is complete.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271101 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-28 05:21:57 +00:00
Zachary Turner
e8799b644b Resubmit "[pdb] Allow zero-copy read support for symbol streams.""
Due to differences in template instantiation rules, it is not
portable to static_assert(false) inside of an invalid specialization
of a template.  Instead I just =delete the method so that it can't
be used, and leave a comment that it must be explicitly specialized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271027 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-27 18:47:20 +00:00
Chad Rosier
1f37794220 Revert "[pdb] Allow zero-copy read support for symbol streams."
This reverts commit r271024 due to error: static_assert failed
"You must either provide a specialization of VarStreamArrayExtractor
or a custom extractor"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271026 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-27 18:31:02 +00:00
Zachary Turner
6e1b1bf7c7 [pdb] Allow zero-copy read support for symbol streams.
This reduces the amount of memory used by llvm-pdbdump by roughly
1/3 of the size of the PDB file.

Differential Revision: http://reviews.llvm.org/D20724
Reviewed By: ruiu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271025 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-27 18:20:20 +00:00
Zachary Turner
24466fcd2c Make a symbol visitor and use it to dump CV symbols.
Differential Revision: http://reviews.llvm.org/D20534
Reviewed By: rnk

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270511 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-23 23:41:13 +00:00