Commit Graph

5 Commits

Author SHA1 Message Date
Pavel Labath 257ff33989 DebugNamesDWARFIndex: Implement GetFunctions method
Summary:
This patch implements the non-regex variant of GetFunctions. To share
more code with the Apple implementation, I've extracted the common
filtering code from that class into a utility function on the DWARFIndex
base class.

The new implementation also searching the accelerator table multiple
times -- previously it could happen that the apple table would return
the same die more than once if one specified multiple search flags in
name_type_mask. This way, I separate table iteration from filtering, and
so we can be sure each die is inserted at most once.

Reviewers: clayborg, JDevlieghere

Subscribers: aprantl, lldb-commits

Differential Revision: https://reviews.llvm.org/D47881

llvm-svn: 334273
2018-06-08 09:10:31 +00:00
Pavel Labath 6de9c79e71 DWARFIndex: more GetFunctions cleanup
This applies similar simplification as r334004, only it touches the
regex version of the method.

llvm-svn: 334012
2018-06-05 12:13:22 +00:00
Pavel Labath b13f033818 Reland "[DWARF] Extract indexing code into a separate class hierarchy"
After this commit, the xcode project will need to be updated to include
the new files added here.

llvm-svn: 332841
2018-05-21 14:12:52 +00:00
Amara Emerson 29b8df607e Revert "[DWARF] Extract indexing code into a separate class hierarchy"
This reverts commit r332719 due to breaking this green dragon build:
http://green.lab.llvm.org/green/job/lldb-xcode/6644

llvm-svn: 332730
2018-05-18 15:59:42 +00:00
Pavel Labath 1237095b3c [DWARF] Extract indexing code into a separate class hierarchy
Summary:
This places the `if(m_using_apple_tables)` branches inside the
SymbolFileDWARF class behind an abstract DWARFIndex class. The class
currently has two implementations:
- AppleIndex, which searches using .apple_names and friends
- ManualIndex, which searches using a manually built index

Most of the methods of the class are very simple, and simply extract the
list of DIEs for the given name from the appropriate sub-table. The main
exception are the two GetFunctions overloads, which take a couple of
extra paramenters, including some callbacks. It was not possible to
split these up the same way as other methods, as here we were doing a
lot of post-processing on the results. The post-processing is similar
for the two cases, but not identical. I hope to factor these further in
separate patches.

Other interesting methods are:
- Preload(): do any preprocessing to make lookups faster (noop for
  AppleIndex, forces a build of the lookup tables for ManualIndex).
- ReportInvalidDIEOffset(): Used to notify the users of an invalid index
  (prints a message for AppleIndex, noop for ManualIndex).
- Dump(): dumps the index state (noop for AppleIndex, prints the lookup
  tables for ManualIndex).

Reviewers: clayborg, JDevlieghere

Subscribers: mgorny, aprantl, lldb-commits

Differential Revision: https://reviews.llvm.org/D46889

llvm-svn: 332719
2018-05-18 14:15:46 +00:00