commit 60b59529cc7687aa32855b93e38d9b7d6b0f871c
author Puyan Lotfi <puyan@puyan.org> Tue Oct 08 15:23:14 2019 +0000
committer Puyan Lotfi <puyan@puyan.org> Tue Oct 08 15:23:14 2019 +0000
tree 7369e3724bf3252017a67cd6a0209400964ee882
parent f1b82483499f6e23b6752d083e3413bfee298acf

[clang][ifs] Clang Interface Stubs ToolChain plumbing.

Second Landing Attempt:

This patch enables end to end support for generating ELF interface stubs
directly from clang. Now the following:

clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp

will product an ELF binary with visible symbols populated. Visibility attributes
and -fvisibility can be used to control what gets populated.

* Adding ToolChain support for clang Driver IFS Merge Phase
* Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain
* Adds support for the clang Driver to involve llvm-ifs on ifs files.
* Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file
  instead of the final object format (normally ELF)


Differential Revision: https://reviews.llvm.org/D63978




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374061 91177308-0d34-0410-b5e6-96231b3b80d8