####################################################################
## SDL required compiler flags
####################################################################
# Needed for all builds
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat -Wformat-security")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")

set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat -Wformat-security")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")

set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations")

set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fPIE")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE")

# Release build only
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -D_FORTIFY_SOURCE=2")
if (GCC_VERSION VERSION_GREATER 4.9 OR GCC_VERSION VERSION_EQUAL 4.9)
  set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fstack-protector-strong")
  set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -z noexecstack -z relro -z now")

  # These are for 8478-CT158 in the SDL process
  # ( https://sdp-prod.intel.com/bunits/intel/coredla/coredla-ip-20212/tasks/phase/development/8478-CT158/ )
else()
  set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fstack-protector-all")
endif()

set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fPIC -D_FORTIFY_SOURCE=2")
if (GCC_VERSION VERSION_GREATER 4.9 OR GCC_VERSION VERSION_EQUAL 4.9)
  set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fstack-protector-strong")
  set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -z noexecstack -z relro -z now")
else()
  set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fstack-protector-all")
endif()

# These are for 8478-CT158 in the SDL process
# ( https://sdp-prod.intel.com/bunits/intel/coredla/coredla-ip-20212/tasks/phase/development/8478-CT158/ )
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -fno-strict-overflow -fno-delete-null-pointer-checks -fwrapv")
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -fno-strict-overflow -fno-delete-null-pointer-checks -fwrapv")
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -fno-strict-overflow -fno-delete-null-pointer-checks -fwrapv")

####################################################################

set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")

set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -ggdb3")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -ggdb3")

#### Sanitizer settings ####
# Address
set(CMAKE_C_FLAGS_ASAN "-O1 -g -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls")
set(CMAKE_CXX_FLAGS_ASAN "-O1 -g -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls")

# Memory
set(CMAKE_C_FLAGS_MSAN "-O1 -g -fsanitize=memory -fno-omit-frame-pointer -fno-optimize-sibling-calls")
set(CMAKE_CXX_FLAGS_MSAN "-O1 -g -fsanitize=memory -fno-omit-frame-pointer -fno-optimize-sibling-calls")

# Thread
set(CMAKE_C_FLAGS_TSAN "-O1 -g -fsanitize=thread -fno-omit-frame-pointer -fno-optimize-sibling-calls")
set(CMAKE_CXX_FLAGS_TSAN "-O1 -g -fsanitize=thread -fno-omit-frame-pointer -fno-optimize-sibling-calls")


set (CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
# Enable all warnings except unknown-pragmas.  Wunknown-pragmas must be excluded because
# it is triggered by header file included from OpenCL runtime
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-unknown-pragmas")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-unknown-pragmas")

# Make warnings errors to avoid having them in SDL report
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")

# Should cleanup the signed and unsigned compares then remove this exception
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error=sign-compare -Wno-error=unused-function -Wno-error=switch -Wno-error=unused-variable -Wno-error=unused-value -Wno-error=unused-but-set-variable -Wno-error=undef -Wno-error=return-type -Wno-error=reorder")

# This is required on Ubuntu 18; the new linker behaviour transforms
# RPATH into RUNPATH (which can be seen in the output of 'readelf -d').
# However, RUNPATH does not work recursively, so when OpenVINO reads
# the plugins.xml file and searches for the specified libcoreDlaRuntimePlugin.so
# library, it fails.  The --disable-new-dtags option causes the linker
# to keep RPATH as RPATH (rather than morphing to RUNPATH).
#
# References:
#  https://stackoverflow.com/questions/52018092/how-to-set-rpath-and-runpath-with-gcc-ld
#  https://stackoverflow.com/questions/59248421/c-secondary-dependency-resolution-with-runpath
#
# The solution below seems preferable to setting LD_LIBRARY_PATH, if only barely.
# For additional motivation, go ahead and throw away part of your day reading either
# of the screeds:
#  http://xahlee.info/UnixResource_dir/_/ldpath.html
#  https://gms.tf/ld_library_path-considered-harmful.html
# You may find that neither is fully convincing, of course.
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,--disable-new-dtags")