[PATCH] D60186: Support CLANG_ENABLE_DEFAULT_PIE like gcc --enable-default-pie

[Jiang Yi via Phabricator via cfe-commits]

jiangyi created this revision.
Herald added subscribers: cfe-commits, mstorsjo, aheejin, jgravelle-google, sbc100, mgorny, dschuff, emaste.
Herald added a project: clang.

GCC 6 added the --enable-defaut-pie flag, which would provide better security with ASLR enabled.

--enable-defaut-pie is enabled by default in many linux distros such as Alpine, Arch, Debian, Fedora, Gentoo, OpenSUSE, Ubuntu...

Add a cmake option CLANG_ENABLE_DEFAULT_PIE to support the same functionality for clang.

A pre-processor macro is placed at clang/Driver/ToolChain.h to conditionally make isPIEDefault() a non-virtual function. By doing so,  future subclasses of clang::driver::ToolChain will not accidentally override isPIEDefault() while not taking into account of CLANG_ENABLE_DEFAULT_PIE.


Repository:
  rC Clang

https://reviews.llvm.org/D60186

Files:
  CMakeLists.txt
  include/clang/Config/config.h.cmake
  include/clang/Driver/ToolChain.h
  lib/Driver/Driver.cpp
  lib/Driver/ToolChain.cpp
  lib/Driver/ToolChains/BareMetal.h
  lib/Driver/ToolChains/CloudABI.cpp
  lib/Driver/ToolChains/CloudABI.h
  lib/Driver/ToolChains/CommonArgs.cpp
  lib/Driver/ToolChains/CrossWindows.cpp
  lib/Driver/ToolChains/CrossWindows.h
  lib/Driver/ToolChains/Cuda.cpp
  lib/Driver/ToolChains/Cuda.h
  lib/Driver/ToolChains/Darwin.cpp
  lib/Driver/ToolChains/Darwin.h
  lib/Driver/ToolChains/FreeBSD.cpp
  lib/Driver/ToolChains/FreeBSD.h
  lib/Driver/ToolChains/Fuchsia.cpp
  lib/Driver/ToolChains/Fuchsia.h
  lib/Driver/ToolChains/Gnu.cpp
  lib/Driver/ToolChains/Gnu.h
  lib/Driver/ToolChains/HIP.h
  lib/Driver/ToolChains/Haiku.h
  lib/Driver/ToolChains/Hurd.cpp
  lib/Driver/ToolChains/Linux.cpp
  lib/Driver/ToolChains/Linux.h
  lib/Driver/ToolChains/MSP430.h
  lib/Driver/ToolChains/MSVC.cpp
  lib/Driver/ToolChains/MSVC.h
  lib/Driver/ToolChains/MinGW.cpp
  lib/Driver/ToolChains/MinGW.h
  lib/Driver/ToolChains/OpenBSD.h
  lib/Driver/ToolChains/Solaris.cpp
  lib/Driver/ToolChains/TCE.cpp
  lib/Driver/ToolChains/TCE.h
  lib/Driver/ToolChains/WebAssembly.cpp
  lib/Driver/ToolChains/WebAssembly.h
  lib/Driver/ToolChains/XCore.cpp
  lib/Driver/ToolChains/XCore.h
  lib/Frontend/CompilerInvocation.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D60186.193444.patch
Type: text/x-patch
Size: 21175 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20190403/a52e40f5/attachment-0001.bin>