17 Commits

Author SHA1 Message Date
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
David Majnemer
7bae2669d5 [CodeView] Emit an appropriate symbol kind for globals
We emitted debug info for globals/functions as if they all had external
linkage.  Instead, emit local symbol records when appropriate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274676 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-06 21:07:47 +00:00
Reid Kleckner
b892430f09 [codeview] Use one byte for S_FRAMECOOKIE CookieKind and add flags byte
We bailed out while printing codeview for an MSVC compiled
SemaExprCXX.cpp that used this record. The MS reference headers look
incorrect here, which is probably why we had this bug. They use a 32-bit
enum as the field type, but the actual record appears to use one byte
for the cookie kind followed by a flags byte.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273691 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-24 17:23:49 +00:00
Zachary Turner
8839a0f88f [pdb] Parse and dump section map and section contribs
Differential Revision: http://reviews.llvm.org/D20876
Reviewed By: rnk, ruiu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271488 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-02 05:07:49 +00:00
David Majnemer
efdb5ca295 [SymbolDumper] Validate the string table offset before using it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271145 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-28 20:04:46 +00:00
David Majnemer
6a561385b2 [SymbolDumper] Validate the string table offset before using it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271142 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-28 19:45:56 +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
a02a9cb46b [codeview] Add support for S_EXPORT symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270636 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-25 00:12:40 +00:00
Zachary Turner
2d4f33a508 [codeview] Add support for new type records.
This adds support for parsing and dumping the following
symbol types:

S_LPROCREF
S_ENVBLOCK
S_COMPILE2
S_REGISTER
S_COFFGROUP
S_SECTION
S_THUNK32
S_TRAMPOLINE

As of this patch, the test PDB files no longer have any unknown
symbol types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270628 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-24 22:58:46 +00:00
Zachary Turner
653eb429f5 [codeview, pdb] Dump symbol records in publics stream
Differential Revision: http://reviews.llvm.org/D20580
Reviewed By: ruiu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270597 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-24 18:55:14 +00:00
Zachary Turner
7f50c3125c Fix build errors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270587 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-24 17:44:29 +00:00
Zachary Turner
fe03e32b28 Dump symbol record details in llvm-pdbdump
This makes use of the newly introduced `CVSymbolVisitor` to dump details
of each type of symbol record in the symbol streams.  Future patches will
bring this visitor based dumping to the publics stream, as well as
creating a `SymbolDumpDelegate` to print more information about
relocations etc.

Differential Revision: http://reviews.llvm.org/D20545
Reviewed By: ruiu

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270585 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-24 17:30:25 +00:00
Zachary Turner
2defe22bf3 Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270516 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-24 00:06:04 +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