Find a file
Hiroki ffcf571107 [LLDB] Fix 'std::out_of_range' crashing bug when file name completion using file path.
When I run a lldb command that uses filename completion, if I enter a string
that is not only a filename but also a string with a non-file name string added,
such as "./" that is relative path string , it will crash as soon as I press the
[Tab] key. For example, debugging an executable file named "hello" that is
compiled from a file named "hello.c" , and I’ll put a breakpoint on line 3 of
hello.c.

```
$ lldb ./hello
(lldb) breakpoint set --file hello.c --line 3
```

This is not a problem, but if I set "--file ./hello."  and then press [Tab] key
to complete file name, lldb crashes.

```
$ lldb ./hello
(lldb) breakpoint set --file ./hello.terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::substr: __pos (which is 8) > this->size() (which is 7)
```

The crash was caused because substr() (in lldb/source/Host/common/Editline.cpp)
cut out string which size is user's input string from the completion string.

I modified the code that erase the user's intput string from current line and
then add the completion string.

Differential Revision: https://reviews.llvm.org/D108817
2021-08-30 15:14:09 +02:00
.github
clang [clang] Add gcc-toolset-10 support (RHEL/CentOS 8) 2021-08-30 13:33:30 +02:00
clang-tools-extra
compiler-rt tsan: add a comment to CallUserSignalHandler 2021-08-30 11:33:19 +02:00
cross-project-tests
flang [flang][mlir] Fix FIR after D108899 2021-08-30 13:51:39 +02:00
libc [libc] Ensure the result of the clone syscall is not on stack in thrd_create. 2021-08-30 04:35:40 +00:00
libclc
libcxx [libcxx] Use GetSystemTimePreciseAsFileTime() if available 2021-08-27 20:11:29 +03:00
libcxxabi
libunwind [libunwind] Don't include cet.h/immintrin.h unconditionally 2021-08-26 11:37:07 +02:00
lld [ELF] Simplify addGotEntry. NFC 2021-08-29 13:40:08 -07:00
lldb [LLDB] Fix 'std::out_of_range' crashing bug when file name completion using file path. 2021-08-30 15:14:09 +02:00
llvm Silence a signed/unsigned mismatch warning; NFC 2021-08-30 08:51:08 -04:00
mlir Fix interface trait declaration in SymbolInterfaces.td 2021-08-30 11:15:05 +02:00
openmp [OpenMP][NVPTX] Fixed missing variables for CUDA free compilation in NVPTX plugin 2021-08-28 18:08:10 -04:00
parallel-libs
polly [Polly][test] Add dependency to count. 2021-08-28 22:50:07 -05:00
pstl
runtimes
utils [mlir][SCF] Canonicalize dim(x) where x is an iter_arg 2021-08-30 01:39:56 +00:00
.arcconfig
.arclint
.clang-format
.clang-tidy
.git-blame-ignore-revs
.gitignore
.mailmap
CONTRIBUTING.md
README.md
SECURITY.md

The LLVM Compiler Infrastructure

This directory and its sub-directories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The README briefly describes how to get started with building LLVM. For more information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting Started with the LLVM System

Taken from https://llvm.org/docs/GettingStarted.html.

Overview

Welcome to the LLVM project!

The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer. It also contains basic regression tests.

C-like languages use the Clang front end. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

The LLVM Getting Started documentation may be out of date. The Clang Getting Started page might have more accurate information.

This is an example work-flow and configuration to get and build the LLVM source:

  1. Checkout LLVM (including related sub-projects like Clang):

    • git clone https://github.com/llvm/llvm-project.git

    • Or, on windows, git clone --config core.autocrlf=false https://github.com/llvm/llvm-project.git

  2. Configure and build LLVM and Clang:

    • cd llvm-project

    • cmake -S llvm -B build -G <generator> [options]

      Some common build system generators are:

      • Ninja --- for generating Ninja build files. Most llvm developers use Ninja.
      • Unix Makefiles --- for generating make-compatible parallel makefiles.
      • Visual Studio --- for generating Visual Studio projects and solutions.
      • Xcode --- for generating Xcode projects.

      Some Common options:

      • -DLLVM_ENABLE_PROJECTS='...' --- semicolon-separated list of the LLVM sub-projects you'd like to additionally build. Can include any of: clang, clang-tools-extra, libcxx, libcxxabi, libunwind, lldb, compiler-rt, lld, polly, or cross-project-tests.

        For example, to build LLVM, Clang, libcxx, and libcxxabi, use -DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi".

      • -DCMAKE_INSTALL_PREFIX=directory --- Specify for directory the full path name of where you want the LLVM tools and libraries to be installed (default /usr/local).

      • -DCMAKE_BUILD_TYPE=type --- Valid options for type are Debug, Release, RelWithDebInfo, and MinSizeRel. Default is Debug.

      • -DLLVM_ENABLE_ASSERTIONS=On --- Compile with assertion checks enabled (default is Yes for Debug builds, No for all other build types).

    • cmake --build build [-- [options] <target>] or your build system specified above directly.

      • The default target (i.e. ninja or make) will build all of LLVM.

      • The check-all target (i.e. ninja check-all) will run the regression tests to ensure everything is in working order.

      • CMake will generate targets for each tool and library, and most LLVM sub-projects generate their own check-<project> target.

      • Running a serial build will be slow. To improve speed, try running a parallel build. That's done by default in Ninja; for make, use the option -j NNN, where NNN is the number of parallel jobs, e.g. the number of CPUs you have.

    • For more information see CMake

Consult the Getting Started with LLVM page for detailed information on configuring and compiling LLVM. You can visit Directory Layout to learn about the layout of the source code tree.