Enable the fPIE compiler option for executables in the coreclr repo on Unix platforms

Author: sergiy-k

src/coreclr/hosts/osxbundlerun/CMakeLists.txt

@@ -2,6 +2,8 @@ project(osxbundlerun)
 
 include_directories(../unixcoreruncommon)
 
+add_compile_options(-fPIE)
+
 set(CORERUN_SOURCES 
     ../unixcoreruncommon/coreruncommon.cpp
     osxbundlerun.cpp 

src/coreclr/hosts/unixcoreconsole/CMakeLists.txt

@@ -2,6 +2,8 @@ project(unixcoreconsole)
 
 include_directories(../unixcoreruncommon)
 
+add_compile_options(-fPIE)
+
 set(CORECONSOLE_SOURCES 
     coreconsole.cpp 
 )

src/coreclr/hosts/unixcorerun/CMakeLists.txt

@@ -2,6 +2,8 @@ project(unixcorerun)
 
 include_directories(../unixcoreruncommon)
 
+add_compile_options(-fPIE)
+
 set(CORERUN_SOURCES 
     corerun.cpp 
 )

src/coreclr/hosts/unixcoreruncommon/CMakeLists.txt

@@ -1,5 +1,7 @@
 project(unixcoreruncommon)
 
+add_compile_options(-fPIC)
+
 add_library(unixcoreruncommon
     STATIC
     coreruncommon.cpp

src/ilasm/CMakeLists.txt

@@ -10,6 +10,10 @@ add_definitions(-DFEATURE_CORECLR)
 include_directories(.)
 include_directories(../ildasm/unixcoreclrloader)
 
+if(CLR_CMAKE_PLATFORM_UNIX)
+  add_compile_options(-fPIE)
+endif(CLR_CMAKE_PLATFORM_UNIX)
+
 set(ILASM_SOURCES
   assem.cpp
   writer.cpp

src/ildasm/exe/CMakeLists.txt

@@ -10,6 +10,7 @@ add_definitions(-DFEATURE_CORECLR)
 include_directories(..)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
+    add_compile_options(-fPIE)
     include_directories(../unixcoreclrloader)
     build_resources(${CMAKE_CURRENT_SOURCE_DIR}/../dasm.rc dasm_rc TARGET_CPP_FILE)
 

src/tools/crossgen/CMakeLists.txt

@@ -12,6 +12,10 @@ if(WIN32)
     add_definitions(-D_CRT_NON_CONFORMING_WCSTOK)
 endif()
 
+if(CLR_CMAKE_PLATFORM_UNIX)
+  add_compile_options(-fPIE)
+endif(CLR_CMAKE_PLATFORM_UNIX)
+
 add_definitions(-DFX_VER_INTERNALNAME_STR=crossgen.exe)
 add_definitions(-DNO_NGENPDB)