dotnet · jkotas · Aug 23, 2019 · Aug 22, 2019 · Aug 22, 2019
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -6,6 +6,9 @@ cmake_policy(SET CMP0042 NEW)
 # Set the project name
 project(CoreCLR)
 
+# All code we build should be compiled as position independent
+set(CMAKE_POSITION_INDEPENDENT_CODE 1)
+
 # Include cmake functions
 include(functions.cmake)
 

diff --git a/configurecompiler.cmake b/configurecompiler.cmake
@@ -323,10 +323,9 @@ elseif (CLR_CMAKE_PLATFORM_UNIX)
       endif ()
 
       # -fdata-sections -ffunction-sections: each function has own section instead of one per .o file (needed for --gc-sections)
-      # -fPIC: enable Position Independent Code normally just for shared libraries but required when linking with address sanitizer
       # -O1: optimization level used instead of -O0 to avoid compile error "invalid operand for inline asm constraint"
-      set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections -fPIC -O1")
-      set(CMAKE_CXX_FLAGS_CHECKED "${CMAKE_CXX_FLAGS_CHECKED} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections -fPIC -O1")
+      set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections  -O1")
+      set(CMAKE_CXX_FLAGS_CHECKED "${CMAKE_CXX_FLAGS_CHECKED} ${CLR_SANITIZE_CXX_FLAGS} -fdata-sections -ffunction-sections  -O1")
 
       set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${CLR_SANITIZE_LINK_FLAGS}")
       set(CMAKE_EXE_LINKER_FLAGS_CHECKED "${CMAKE_EXE_LINKER_FLAGS_CHECKED} ${CLR_SANITIZE_LINK_FLAGS}")
@@ -336,6 +335,11 @@ elseif (CLR_CMAKE_PLATFORM_UNIX)
       set(CMAKE_SHARED_LINKER_FLAGS_CHECKED "${CMAKE_SHARED_LINKER_FLAGS_CHECKED} ${CLR_SANITIZE_LINK_FLAGS} -Wl,--gc-sections")
     endif ()
   endif(UPPERCASE_CMAKE_BUILD_TYPE STREQUAL DEBUG OR UPPERCASE_CMAKE_BUILD_TYPE STREQUAL CHECKED)
+
+  # This linker option causes executables we build to be marked as containing position independent code.
+  # It is necessary to make ASLR work for executables.
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie" )
+
 endif(WIN32)
 
 # CLR_ADDITIONAL_LINKER_FLAGS - used for passing additional arguments to linker

diff --git a/src/binder/CMakeLists.txt b/src/binder/CMakeLists.txt
@@ -91,9 +91,5 @@ endif(WIN32)
 convert_to_absolute_path(BINDER_SOURCES ${BINDER_SOURCES})
 convert_to_absolute_path(BINDER_CROSSGEN_SOURCES ${BINDER_CROSSGEN_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(v3binder)
 add_subdirectory(v3binder_crossgen)
diff --git a/src/classlibnative/bcltype/CMakeLists.txt b/src/classlibnative/bcltype/CMakeLists.txt
@@ -11,10 +11,6 @@ set(BCLTYPE_SOURCES
     variant.cpp
 )
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_library_clr(bcltype
     STATIC
     ${BCLTYPE_SOURCES}

diff --git a/src/classlibnative/float/CMakeLists.txt b/src/classlibnative/float/CMakeLists.txt
@@ -7,10 +7,6 @@ set(FLOAT_SOURCES
     floatsingle.cpp
 )
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_library_clr(comfloat_wks
     STATIC
     ${FLOAT_SOURCES}

diff --git a/src/coreclr/hosts/osxbundlerun/CMakeLists.txt b/src/coreclr/hosts/osxbundlerun/CMakeLists.txt
@@ -2,8 +2,6 @@ project(osxbundlerun)
 
 include_directories(../unixcoreruncommon)
 
-add_compile_options(-fPIE)
-
 set(CORERUN_SOURCES 
     osxbundlerun.cpp 
 )

diff --git a/src/coreclr/hosts/unixcoreconsole/CMakeLists.txt b/src/coreclr/hosts/unixcoreconsole/CMakeLists.txt
@@ -2,8 +2,6 @@ project(unixcoreconsole)
 
 include_directories(../unixcoreruncommon)
 
-add_compile_options(-fPIE)
-
 set(CORECONSOLE_SOURCES 
     coreconsole.cpp 
 )

diff --git a/src/coreclr/hosts/unixcorerun/CMakeLists.txt b/src/coreclr/hosts/unixcorerun/CMakeLists.txt
@@ -2,8 +2,6 @@ project(unixcorerun)
 
 include_directories(../unixcoreruncommon)
 
-add_compile_options(-fPIE)
-
 set(CORERUN_SOURCES 
     corerun.cpp 
 )

diff --git a/src/coreclr/hosts/unixcoreruncommon/CMakeLists.txt b/src/coreclr/hosts/unixcoreruncommon/CMakeLists.txt
@@ -1,7 +1,5 @@
 project(unixcoreruncommon)
 
-add_compile_options(-fPIC)
-
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 include(configure.cmake)

diff --git a/src/corefx/System.Globalization.Native/CMakeLists.txt b/src/corefx/System.Globalization.Native/CMakeLists.txt
@@ -37,8 +37,6 @@ endif()
 
 include(configure.cmake)
 
-add_compile_options(-fPIC)
-
 set(NATIVEGLOBALIZATION_SOURCES
     pal_calendarData.c
     pal_casing.c

diff --git a/src/debug/createdump/CMakeLists.txt b/src/debug/createdump/CMakeLists.txt
@@ -20,8 +20,6 @@ include_directories(BEFORE ${VM_DIR})
 
 add_definitions(-DPAL_STDCPP_COMPAT)
 
-add_compile_options(-fPIE)
-
 set(CREATEDUMP_SOURCES 
     createdump.cpp 
     crashinfo.cpp

diff --git a/src/debug/daccess/CMakeLists.txt b/src/debug/daccess/CMakeLists.txt
@@ -11,7 +11,6 @@ include_directories(${CLR_DIR}/src/gcdump)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
   include_directories(${GENERATED_INCLUDE_DIR})
-  add_compile_options(-fPIC)
 endif(CLR_CMAKE_PLATFORM_UNIX)
 
 set(DACCESS_SOURCES

diff --git a/src/debug/dbgutil/CMakeLists.txt b/src/debug/dbgutil/CMakeLists.txt
@@ -9,8 +9,4 @@ set(DBGUTIL_SOURCES
     dbgutil.cpp
 )
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_library_clr(dbgutil STATIC ${DBGUTIL_SOURCES})
diff --git a/src/debug/debug-pal/CMakeLists.txt b/src/debug/debug-pal/CMakeLists.txt
@@ -16,7 +16,6 @@ if(WIN32)
 endif(WIN32)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
 
     add_definitions(-DFEATURE_PAL)
     add_definitions(-DPAL_IMPLEMENTATION)

diff --git a/src/debug/di/CMakeLists.txt b/src/debug/di/CMakeLists.txt
@@ -89,7 +89,6 @@ if(WIN32)
         set(CORDBDI_SOURCES_ASM_FILE ${CMAKE_CURRENT_BINARY_DIR}/${name}.obj)
     endif()
 elseif(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
 
     if(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGET_ARCH_ARM)
       set(CORDBDI_SOURCES_ASM_FILE

diff --git a/src/debug/ee/CMakeLists.txt b/src/debug/ee/CMakeLists.txt
@@ -6,10 +6,6 @@ include_directories(BEFORE ${VM_DIR})
 include_directories(BEFORE ${VM_DIR}/${ARCH_SOURCES_DIR})
 include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-  add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 set(CORDBEE_SOURCES_DAC_AND_WKS
   controller.cpp
   debugger.cpp

diff --git a/src/debug/ee/wks/CMakeLists.txt b/src/debug/ee/wks/CMakeLists.txt
@@ -54,8 +54,6 @@ if (WIN32)
 
 else ()
 
-  add_compile_options(-fPIC)
-
   if(CLR_CMAKE_PLATFORM_ARCH_AMD64 OR CLR_CMAKE_PLATFORM_ARCH_ARM OR CLR_CMAKE_PLATFORM_ARCH_ARM64 OR CLR_CMAKE_PLATFORM_ARCH_I386)
     add_library_clr(cordbee_wks ${CORDBEE_SOURCES_WKS} ../${ARCH_SOURCES_DIR}/dbghelpers.S)
   else()

diff --git a/src/debug/ildbsymlib/CMakeLists.txt b/src/debug/ildbsymlib/CMakeLists.txt
@@ -10,9 +10,5 @@ set( ILDBSYMLIB_SOURCES
   symwrite.cpp
 )
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_library_clr(ildbsymlib ${ILDBSYMLIB_SOURCES})
 
diff --git a/src/debug/shim/CMakeLists.txt b/src/debug/shim/CMakeLists.txt
@@ -4,10 +4,6 @@ if(WIN32)
   add_definitions(-DHOST_IS_WINDOWS_OS)
 endif(WIN32)
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-  add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 set(DEBUGSHIM_SOURCES
   debugshim.cpp
 )

diff --git a/src/dlls/dbgshim/CMakeLists.txt b/src/dlls/dbgshim/CMakeLists.txt
@@ -41,8 +41,6 @@ endif(CLR_CMAKE_PLATFORM_DARWIN)
 add_library_clr(dbgshim SHARED ${DBGSHIM_SOURCES})
 
 if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-
     add_custom_target(dbgshim_exports DEPENDS ${EXPORTS_FILE})
     add_dependencies(dbgshim dbgshim_exports)
 

diff --git a/src/dlls/mscordac/CMakeLists.txt b/src/dlls/mscordac/CMakeLists.txt
@@ -1,10 +1,6 @@
 include(${CLR_DIR}/dac.cmake)
 add_definitions(-DFEATURE_NO_HOST)
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 set(CLR_DAC_SOURCES
 )
 

diff --git a/src/dlls/mscorrc/CMakeLists.txt b/src/dlls/mscorrc/CMakeLists.txt
@@ -9,10 +9,6 @@ if(WIN32)
     string(REPLACE "/guard:cf" "" CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS})
 endif(WIN32)
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(full)
 
 # Only add the small version of the resources if the platform is Windows.

diff --git a/src/gc/CMakeLists.txt b/src/gc/CMakeLists.txt
@@ -97,7 +97,6 @@ target_link_libraries(clrgc ${GC_LINK_LIBRARIES})
 install_clr(clrgc)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
-  add_compile_options(-fPIC)
   # dprintf causes many warnings (https://github.com/dotnet/coreclr/issues/13367)
   add_compile_options(-Wno-format)
 endif(CLR_CMAKE_PLATFORM_UNIX)

diff --git a/src/gc/unix/CMakeLists.txt b/src/gc/unix/CMakeLists.txt
@@ -1,5 +1,4 @@
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
-add_compile_options(-fPIC)
 include_directories("../env")
 
 include(configure.cmake)

diff --git a/src/gcinfo/CMakeLists.txt b/src/gcinfo/CMakeLists.txt
@@ -16,10 +16,6 @@ endif(CLR_CMAKE_TARGET_ARCH_I386)
 
 convert_to_absolute_path(GCINFO_SOURCES ${GCINFO_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(lib)
 add_subdirectory(crossgen)
 

diff --git a/src/ilasm/CMakeLists.txt b/src/ilasm/CMakeLists.txt
@@ -9,10 +9,6 @@ add_definitions(-DFEATURE_CORECLR)
 
 include_directories(.)
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-  add_compile_options(-fPIE)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 set(ILASM_SOURCES
   assem.cpp
   writer.cpp

diff --git a/src/ildasm/exe/CMakeLists.txt b/src/ildasm/exe/CMakeLists.txt
@@ -10,7 +10,6 @@ add_definitions(-DFEATURE_CORECLR)
 include_directories(..)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIE)
     build_resources(${CMAKE_CURRENT_SOURCE_DIR}/../dasm.rc dasm_rc TARGET_CPP_FILE)
 
     set(ILDASM_RESOURCES

diff --git a/src/inc/CMakeLists.txt b/src/inc/CMakeLists.txt
@@ -62,7 +62,6 @@ foreach(IDL_SOURCE IN LISTS CORGUIDS_IDL_SOURCES)
    list(APPEND CORGUIDS_SOURCES ${C_SOURCE})
 endforeach(IDL_SOURCE)
 
-add_compile_options(-fPIC)
 endif(WIN32)
 
 if(FEATURE_JIT_PITCHING)

diff --git a/src/jit/dll/CMakeLists.txt b/src/jit/dll/CMakeLists.txt
@@ -3,8 +3,6 @@ project(ClrJit)
 set_source_files_properties(${JIT_EXPORTS_FILE} PROPERTIES GENERATED TRUE)
 
 if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-
     add_library_clr(clrjit_static
       STATIC
       ${SHARED_LIB_SOURCES}

diff --git a/src/md/ceefilegen/CMakeLists.txt b/src/md/ceefilegen/CMakeLists.txt
@@ -21,10 +21,6 @@ set(CEEFILEGEN_HEADERS
     ../../inc/utilcode.h
 )
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_precompiled_header(stdafx.h stdafx.cpp CEEFILEGEN_SOURCES)
 
 if (WIN32)

diff --git a/src/md/compiler/CMakeLists.txt b/src/md/compiler/CMakeLists.txt
@@ -51,10 +51,6 @@ set(MDCOMPILER_HEADERS
 convert_to_absolute_path(MDCOMPILER_SOURCES ${MDCOMPILER_SOURCES})
 convert_to_absolute_path(MDCOMPILER_HEADERS ${MDCOMPILER_HEADERS})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(dac)
 add_subdirectory(wks)
 add_subdirectory(dbi)

diff --git a/src/md/datasource/CMakeLists.txt b/src/md/datasource/CMakeLists.txt
@@ -1,7 +1,3 @@
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 set(MDDATASOURCE_SOURCES
   api.cpp
   datatargetreader.cpp

diff --git a/src/md/enc/CMakeLists.txt b/src/md/enc/CMakeLists.txt
@@ -44,10 +44,6 @@ endif(WIN32)
 convert_to_absolute_path(MDRUNTIMERW_HEADERS ${MDRUNTIMERW_HEADERS})
 convert_to_absolute_path(MDRUNTIMERW_SOURCES ${MDRUNTIMERW_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(dac)
 add_subdirectory(wks)
 add_subdirectory(dbi)

diff --git a/src/md/hotdata/CMakeLists.txt b/src/md/hotdata/CMakeLists.txt
@@ -25,10 +25,6 @@ set(MDHOTDATA_HEADERS
 convert_to_absolute_path(MDHOTDATA_HEADERS ${MDHOTDATA_HEADERS})
 convert_to_absolute_path(MDHOTDATA_SOURCES ${MDHOTDATA_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(dac)
 add_subdirectory(full)
 add_subdirectory(crossgen)

diff --git a/src/md/runtime/CMakeLists.txt b/src/md/runtime/CMakeLists.txt
@@ -41,10 +41,6 @@ set(MDRUNTIME_HEADERS
 convert_to_absolute_path(MDRUNTIME_HEADERS ${MDRUNTIME_HEADERS})
 convert_to_absolute_path(MDRUNTIME_SOURCES ${MDRUNTIME_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(dac)
 add_subdirectory(wks)
 add_subdirectory(dbi)

diff --git a/src/md/staticmd/CMakeLists.txt b/src/md/staticmd/CMakeLists.txt
@@ -6,11 +6,6 @@ set(STATICMD_SOURCES
 
 convert_to_absolute_path(STATICMD_SOURCES ${STATICMD_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
-
 add_definitions(-DFEATURE_METADATA_EMIT_ALL)
 add_definitions(-DFEATURE_METADATA_EMIT)
 add_definitions(-DFEATURE_METADATA_INTERNAL_APIS)

diff --git a/src/md/winmd/CMakeLists.txt b/src/md/winmd/CMakeLists.txt
@@ -20,10 +20,6 @@ set(MDWINMD_HEADERS
 convert_to_absolute_path(MDWINMD_HEADERS ${MDWINMD_HEADERS})
 convert_to_absolute_path(MDWINMD_SOURCES ${MDWINMD_SOURCES})
 
-if(CLR_CMAKE_PLATFORM_UNIX)
-    add_compile_options(-fPIC)
-endif(CLR_CMAKE_PLATFORM_UNIX)
-
 add_subdirectory(dac)
 add_subdirectory(wks)
 if(WIN32)

diff --git a/src/nativeresources/CMakeLists.txt b/src/nativeresources/CMakeLists.txt
@@ -1,7 +1,5 @@
 project(nativeresourcestring)
 
-add_compile_options(-fPIC)
-
 add_library_clr(nativeresourcestring
   STATIC
   resourcestring.cpp

diff --git a/src/pal/src/CMakeLists.txt b/src/pal/src/CMakeLists.txt
@@ -9,8 +9,6 @@ if(NOT DEFINED ENV{ROOTFS_DIR})
   include_directories(SYSTEM /usr/local/include)
 endif()
 
-add_compile_options(-fPIC)
-
 if(NOT CLR_CMAKE_USE_SYSTEM_LIBUNWIND)
   include_directories(libunwind/include)
   include_directories(libunwind/include/tdep)

diff --git a/src/pal/src/eventprovider/lttngprovider/CMakeLists.txt b/src/pal/src/eventprovider/lttngprovider/CMakeLists.txt
@@ -46,8 +46,6 @@ add_library(eventprovider
     eventproviderhelpers.cpp
 )
 
-add_compile_options(-fPIC)
-
 add_library(coreclrtraceptprovider
     SHARED
     ${TRACEPOINT_PROVIDER_SOURCES}
-Original file line number
+Diff line change
@@ Expand Up / @@ -54,8 +54,6 @@ if (WIN32) @@
     else ()
-      add_compile_options(-fPIC)
       if(CLR_CMAKE_PLATFORM_ARCH_AMD64 OR CLR_CMAKE_PLATFORM_ARCH_ARM OR CLR_CMAKE_PLATFORM_ARCH_ARM64 OR CLR_CMAKE_PLATFORM_ARCH_I386)
         add_library_clr(cordbee_wks ${CORDBEE_SOURCES_WKS} ../${ARCH_SOURCES_DIR}/dbghelpers.S)
       else()
@@ Expand Down @@