Commit Graph

65 Commits

Author SHA1 Message Date
Zachary Turner cdd313ca19 Use ScopedPrinter in llvm-pdbdump
When printing raw PDB file fields, streams, and records, use the
ScopedPrinter class so we have consistency with llvm-readobj's output
format.

For the most part this is pretty mechanical, but I had to fix up the test
file to conform to the new YAMLesque output format. i added a few
additional helper functions to the ScopedPrinter such as one to print a
dotted version, etc.

Differential Revision: http://reviews.llvm.org/D19897
Reviewed By: rnk

llvm-svn: 268506
2016-05-04 15:05:12 +00:00
Zachary Turner f5c59654f7 Parse the TPI (type information) stream of PDB files.
This parses the TPI stream (stream 2) from the PDB file. This stream
contains some header information followed by a series of codeview records.
There is some additional complexity here in that alongside this stream of
codeview records is a serialized hash table in order to efficiently query
the types. We parse the necessary bookkeeping information to allow us to
reconstruct the hash table, but we do not actually construct it yet as
there are still a few things that need to be understood first.

Differential Revision: http://reviews.llvm.org/D19840
Reviewed By: ruiu, rnk

llvm-svn: 268343
2016-05-03 00:28:21 +00:00
Zachary Turner 0eace0bae5 Parse PDB Name Hash Table
PDB has a lot of similar data structures.  We already have code
for parsing a Name Map, but PDB seems to have a different but
very similar structure that is a hash table.  This is the
beginning of code needed in order to parse the name hash table,
but it is not yet complete.  It parses the basic metadata of
the hash table, the bucket array, and the names buffer, but
doesn't use any of these fields yet as the data structure
requires a non-trivial amount of work to understand.

llvm-svn: 268268
2016-05-02 18:09:14 +00:00
David Majnemer 1573b242ae [llvm-pdbdump] Restore error messages, handle bad block sizes
We lost the ability to report errors, bring it back.  Also, correctly
validate the block size.

llvm-svn: 267955
2016-04-28 23:47:27 +00:00
David Majnemer 5baa2bc2e1 [llvm-pdbdump] Correctly read data larger than a block
A bug was introduced when the code was refactored which resulted in a
bad memory access.

This fixes PR27565.

llvm-svn: 267953
2016-04-28 23:24:23 +00:00
Zachary Turner 84c3a8ba3d Read the rest of the DBI substreams, and parse source info.
We now read out the rest of the substreams from the DBI streams.  One of
these substreams, the FileInfo substream, contains information about which
source files contribute to each module (aka compiland).  This patch
additionally parses out the file information from that substream, and
dumps it in llvm-pdbdump.

Differential Revision: http://reviews.llvm.org/D19634
Reviewed by: ruiu

llvm-svn: 267928
2016-04-28 20:05:18 +00:00
Zachary Turner 1822af542f Parse module information from DBI stream.
This gets more data out of the DBI strema of the PDB.  In
particular it extracts the metadata for the list of modules
(compilands) that this PDB contains info about, and adds support
for dumping these fields to llvm-pdbdump.

Differential Revision: http://reviews.llvm.org/D19570
Reviewed By: ruiu

llvm-svn: 267818
2016-04-27 23:41:42 +00:00
Zachary Turner 53a65ba5c9 Parse and dump PDB DBI Stream Header Information
The DBI stream contains a lot of bookkeeping information for other
streams. In particular it contains information about section contributions
and linked modules. This patch is a first attempt at parsing some of the
information out of the DBI stream. It currently only parses and dumps the
headers of the DBI stream, so none of the module data or section
contribution data is pulled out.

This is just a proof of concept that we understand the basic properties of
the DBI stream's metadata, and followup patches will try to extract more
detailed information out.

Differential Revision: http://reviews.llvm.org/D19500
Reviewed By: majnemer, ruiu

llvm-svn: 267585
2016-04-26 18:42:34 +00:00
Zachary Turner f34e01624a Refactor some more PDB reading code into DebugInfoPDB.
Differential Revision: http://reviews.llvm.org/D19445
Reviewed By: David Majnemer

llvm-svn: 267564
2016-04-26 16:20:00 +00:00
Zachary Turner 0a43efea95 Resubmit "Refactor raw pdb dumper into library"
This fixes a number of endianness issues as well as an ODR
violation that hopefully causes everything to be happy.

llvm-svn: 267431
2016-04-25 17:38:08 +00:00
Daniel Sanders d41718e8af Revert r267049, r26706[16789], r267071 - Refactor raw pdb dumper into library
r267049 broke multiple buildbots (e.g. clang-cmake-mips, and clang-x86_64-linux-selfhost-modules) which the follow-ups have not yet resolved and this is preventing subsequent committers from being notified about additional failures on the affected buildbots.

llvm-svn: 267148
2016-04-22 12:04:42 +00:00
Zachary Turner ad817e8266 Fix pdbdump-headers.test after guid format change.
llvm-svn: 267067
2016-04-21 22:13:25 +00:00
David Majnemer df3857c7d4 [llvm-pdbdump] Start to decode some streams
We can decode a little bit of the first stream now.

llvm-svn: 260754
2016-02-12 22:27:44 +00:00
David Majnemer 0943419262 s/NumFiles/NumStreams/
llvm-svn: 250357
2015-10-15 01:39:00 +00:00
David Majnemer 6e08126f31 [llvm-pdbdump] Provide a mechanism to dump the raw contents of a PDB
A PDB can be thought of as a very simple file system.  It is
occasionally illuminating to see the contents of the underlying files.

Differential Revision: http://reviews.llvm.org/D13674

llvm-svn: 250356
2015-10-15 01:27:19 +00:00