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Dan Liew c3b93bed29 [asan_symbolize] Fix bug where the frame counter was not incremented. 
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
 		2019-08-12 18:51:25 +00:00
clang [Sema] Require a complete type for __builtin_bit_cast operands 2019-08-12 18:31:27 +00:00
clang-tools-extra [clang-doc] Generate HTML links for children namespaces/records 2019-08-12 18:42:46 +00:00
compiler-rt [asan_symbolize] Fix bug where the frame counter was not incremented. 2019-08-12 18:51:25 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx [libc++] Implement CTAD for std::tuple 2019-08-12 18:30:31 +00:00
libcxxabi Remove outdated comment about clang not populating src2dst_offset 2019-08-12 14:33:46 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF] Remove unnecessary assignment to `isPreemptible` in replaceWithDefined() 2019-08-12 10:01:17 +00:00
lldb [lldb][NFC] Minor fixes for lldb_private::DiagnosticManager 2019-08-12 14:37:12 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm gn build: Merge r368592 2019-08-12 18:33:10 +00:00
openmp Cleanup unused variable. 2019-08-12 12:37:30 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [NFC][ScopBuilder] Move buildDomains and its callees to ScopBuilder. 2019-08-06 21:51:18 +00:00
pstl [NFC][pstl] Run clang-format 2019-08-08 17:10:45 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Change /build to /build* in top-level .gitignore. 2019-08-02 02:14:08 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.