forked from OSchip/llvm-project
403d3187a7
Summary: This change adds a simple plugin architecture to `asan_symbolize.py`. The motivation here is that sometimes it's necessary to perform extra work to figure out where binaries with debug symbols can actually be found. For example it might be the case that a remote service needs to be queried for binaries and then copied to the local system. This "extra work" can be extremely site-specific such that adding the code directly into the `asan_symbolize.py` would just clutter the code for a very niche use case. To avoid this, the `asan_symbolize.py` can now load external code via a new `--plugins` command line option. These plugins are loaded before main command line argument parsing so that they can add their own command line options. Right now the only hook into the behaviour of symbolization is the `filter_binary_path()` function which assumes a very similar role to the `binary_name_filter` function that was previously in the code. We can add more hooks as necessary. Code in the `asan_symbolize.py` script does not call plugin code directly. Instead it uses a `AsanSymbolizerPlugInProxy` object. This object * Loads plugins from files. * Manages the lifetime of the plugins. * Provides an interface for calling into plugin functions and handles calling into multiple plugins. To unify the way binary paths are filtered the old `sysroot_path_filter` function (and associated code) has been turned into a simple plugin (`SysRootFilterPlugIn`) that is always loaded. The plugin unloads itself if the `-s` option is not present on the command line. Users should not see any functional change relating to this command line option. Some simple tests are provided to illustrate what plugin code looks like and also to check the functionality continues to work. rdar://problem/49476995 Reviewers: kubamracek, yln, samsonov, dvyukov, vitalybuka Subscribers: srhines, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D60529 llvm-svn: 358657 |
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| cmake | ||
| docs | ||
| include | ||
| lib | ||
| test | ||
| unittests | ||
| utils | ||
| www | ||
| .arcconfig | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| README.txt | ||
README.txt
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================