3 Commits

Author SHA1 Message Date
Reid Kleckner
84831cda66 [Symbolizer] Don't use PE symbol tables to override PDB symbols
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
2015-11-13 17:00:36 +00:00
Alexey Samsonov
ff7c978f81 [LLVMSymbolize] Move printing the description of a global into a separate function. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251669 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-29 23:49:19 +00:00
Alexey Samsonov
32e078b09c [LLVMSymbolize] Move ModuleInfo into a separate class (SymbolizableModule).
Summary:
This is mostly NFC. It is a first step in cleaning up LLVMSymbolize
library. It removes "ModuleInfo" class which bundles together ObjectFile
and its debug info context in favor of:
  * abstract SymbolizableModule in public headers;
  * SymbolizableObjectFile subclass in implementation.

Additionally, SymbolizableObjectFile is now created via factory, so we
can properly detect object parsing error at this stage instead of keeping
the broken half-parsed object. As a next step, we would be able to
propagate the error all the way back to the library user.

Further improvements might include:
  * factoring out the logic of finding appropriate file with debug info
    for a given object file, and caching all parsed object files into a
    separate class [A].
  * factoring out DILineInfo rendering [B].
This would make what is now a heavyweight "LLVMSymbolizer" a relatively
straightforward class, that calls into [A] to turn filepath into a
SymbolizableModule, delegates actual symbolization to concrete SymbolizableModule
implementation, and lets [C] render the result.

Reviewers: dblaikie, echristo, rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14099

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251662 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-29 22:21:37 +00:00