hanchenye-llvm-project/clang
Ilya Biryukov d8ebe7951d Make clang-based tools find libc++ on MacOS
Summary:
When they read compiler args from compile_commands.json.
This change allows to run clang-based tools, like clang-tidy or clangd,
built from head using the compile_commands.json file produced for XCode
toolchains.

On MacOS clang can find the C++ standard library relative to the
compiler installation dir.

The logic to do this was based on resource dir as an approximation of
where the compiler is installed. This broke the tools that read
'compile_commands.json' and don't ship with the compiler, as they
typically change resource dir.

To workaround this, we now use compiler install dir detected by the driver
to better mimic the behavior of the original compiler when replaying the
compilations using other tools.

Reviewers: sammccall, arphaman, EricWF

Reviewed By: sammccall

Subscribers: ioeric, christof, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D54310

llvm-svn: 346652
2018-11-12 13:55:55 +00:00
..
INPUTS
bindings [python] Support PathLike filenames and directories 2018-11-10 11:41:36 +00:00
cmake [CMake][Fuchsia] Set -fuse-ld=lld explicitly for Linux runtimes 2018-11-02 23:49:36 +00:00
docs [Clang] Add options -fprofile-filter-files and -fprofile-exclude-files to filter the files to instrument with gcov 2018-11-12 09:12:27 +00:00
examples Fix buildbots - update clang-interpreter to use Legacy ORC classes introduced in rL344572. 2018-10-16 09:21:58 +00:00
include Make clang-based tools find libc++ on MacOS 2018-11-12 13:55:55 +00:00
lib Make clang-based tools find libc++ on MacOS 2018-11-12 13:55:55 +00:00
runtime [CMake] Make bootstrap and compiler-rt depend on cxx-headers. 2018-06-28 18:35:25 +00:00
test Make clang-based tools find libc++ on MacOS 2018-11-12 13:55:55 +00:00
tools [OpenCL] Add support of cl_intel_device_side_avc_motion_estimation extension 2018-11-08 11:25:41 +00:00
unittests Fix ClangFormat issue of recognizing ObjC subscript as C++ attributes when message target is a result of a C-style method. 2018-11-09 23:19:14 +00:00
utils [AArch64] Implement FP16FML intrinsics 2018-10-25 23:47:00 +00:00
www [cxx_status] Update for San Diego motions. 2018-11-10 18:02:40 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore [NFC] Add tags file to .gitignore 2018-08-22 23:23:17 +00:00
CMakeLists.txt [clang] Set CMP0075 to new 2018-11-08 00:29:33 +00:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
ModuleInfo.txt
NOTES.txt
README.txt

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:             http://clang.llvm.org/
Building and using Clang:         http://clang.llvm.org/get_started.html
Clang Static Analyzer:            http://clang-analyzer.llvm.org/
Information on the LLVM project:  http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/