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Alexander Richardson e320db434e [asan_symbolize] Avoid blocking when llvm-symbolizer is installed as addr2line 
Summary:
Currently, llvm-symbolizer will print -1 when presented with -1 and not
print a second line. In that case we will block for ever trying to read
the file name. This also happens for non-existent files, in which case GNU
addr2line exits immediate, but llvm-symbolizer does not (see
https://llvm.org/PR42754). While touching these lines, I also added some
more debug logging to help diagnose this and potential future issues.

Reviewers: kcc, eugenis, glider, samsonov

Reviewed By: eugenis

Subscribers: kubamracek, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D65322

llvm-svn: 369924
 		2019-08-26 16:22:04 +00:00
clang clang-format: [JS] handle `as const`. 2019-08-26 15:37:05 +00:00
clang-tools-extra [clangd] Fix docs 2019-08-26 16:01:07 +00:00
compiler-rt [asan_symbolize] Avoid blocking when llvm-symbolizer is installed as addr2line 2019-08-26 16:22:04 +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++] Fix typo in documentation for LIBCXX_HERMETIC_STATIC_LIBRARY 2019-08-23 19:42:09 +00:00
libcxxabi Provide a meaningful diagnostic when LLVM_PATH doesn't point to a directory 2019-08-19 23:51:26 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF] EhFrameSection: postpone FDE liveness check to finalizeSections 2019-08-26 10:32:12 +00:00
lldb [dotest] Print invocation when encountering an error. 2019-08-26 16:08:53 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [PowerPC] add tests for fma with negated ops; NFC 2019-08-26 16:20:09 +00:00
openmp [OPENMP][NVPTX]Use __syncwarp() to reconverge the threads. 2019-08-23 18:34:48 +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 [Polly] Migrate llvm::make_unique to std::make_unique 2019-08-14 22:28:12 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +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.