CMakeLists.txt: detect -fcf-protection=full and -fstack-clash-protection

Introduced with GCC 8.2
6 years ago · 347bba9dd1
parent fad88e18a9
commit 347bba9dd1
1 changed files with 8 additions and 0 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -570,6 +570,14 @@ else()
    add_cxx_flag_if_supported(-fstack-protector-strong CXX_SECURITY_FLAGS)
  endif()

+  # New in GCC 8.2
+  if (NOT WIN32)
+    add_c_flag_if_supported(-fcf-protection=full C_SECURITY_FLAGS)
+    add_cxx_flag_if_supported(-fcf-protection=full CXX_SECURITY_FLAGS)
+    add_c_flag_if_supported(-fstack-clash-protection C_SECURITY_FLAGS)
+    add_cxx_flag_if_supported(-fstack-clash-protection CXX_SECURITY_FLAGS)
+  endif()
+
  # linker
  if (NOT WIN32)
    # Windows binaries die on startup with PIE