c3b93bed29
Summary: This bug occurred when a plug-in requested that a binary not be symbolized while the script is trying to symbolize a stack frame. In this case `self.frame_no` would not be incremented. This would cause subsequent stack frames that are symbolized to be incorrectly numbered. To fix this `get_symbolized_lines()` has been modified to take an argument that indicates whether the stack frame counter should incremented. In `process_line_posix()` `get_symbolized_lines(None, ...)` is now used in in the case where we don't want to symbolize a line so that we can keep the frame counter increment in a single function. A test case is included. The test uses a dummy plugin that always asks `asan_symbolize.py` script to not symbolize the first binary that the script asks about. Prior to the patch this would cause the output to script to look something like ``` #0 0x0 #0 0x0 in do_access #1 0x0 in main ``` This is the second attempt at landing this patch. The first (r368373) failed due to failing some android bots and so was reverted in r368472. The new test is now disabled for Android. It turns out that the patch also fails for iOS too so it is also disabled for that family of platforms too. rdar://problem/49476995 Reviewers: kubamracek, yln, samsonov, dvyukov, vitalybuka Subscribers: #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D65495 llvm-svn: 368603
AddressSanitizer RT
================================
This directory contains sources of the AddressSanitizer (ASan) runtime library.
Directory structure:
README.txt : This file.
Makefile.mk : File for make-based build.
CMakeLists.txt : File for cmake-based build.
asan_*.{cc,h} : Sources of the asan runtime library.
scripts/* : Helper scripts.
tests/* : ASan unit tests.
Also ASan runtime needs the following libraries:
lib/interception/ : Machinery used to intercept function calls.
lib/sanitizer_common/ : Code shared between various sanitizers.
ASan runtime currently also embeds part of LeakSanitizer runtime for
leak detection (lib/lsan/lsan_common.{cc,h}).
ASan runtime can only be built by CMake. You can run ASan tests
from the root of your CMake build tree:
make check-asan
For more instructions see:
https://github.com/google/sanitizers/wiki/AddressSanitizerHowToBuild