X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=m4%2Fax_harden_compiler_flags.m4;h=6fa20c17f541c1da812a086f1ea3bcc1a105760c;hb=1a2beb5b75e3c08596fc3f94b214df7b9dd0143a;hp=b847432141366f6df4e08269e55e5e286c37a770;hpb=168937e6c8d09d126458a4b698ce46f6e9560cf2;p=awesomized%2Flibmemcached

diff --git a/m4/ax_harden_compiler_flags.m4 b/m4/ax_harden_compiler_flags.m4
index b8474321..6fa20c17 100644
--- a/m4/ax_harden_compiler_flags.m4
+++ b/m4/ax_harden_compiler_flags.m4
@@ -1,14 +1,14 @@
 # ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
+#      https://github.com/BrianAker/ddm4/
 # ===========================================================================
 #
 # SYNOPSIS
 #
-#   AX_HARDEN_COMPILER_FLAGS
+#   AX_HARDEN_COMPILER_FLAGS, AX_HARDEN_LINKER_FLAGS, AX_HARDEN_CC_COMPILER_FLAGS, AX_HARDEN_CXX_COMPILER_FLAGS 
 #
 # DESCRIPTION
 #
-#   Any compiler flag that "hardens" or tests code.
+#   Any compiler flag that "hardens" or tests code. C99 is assumed.
 #
 #   NOTE: Implementation based on AX_APPEND_FLAG.
 #
@@ -45,28 +45,152 @@
 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 #  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#serial 1
+# The Following flags are not checked for
+# -Wdeclaration-after-statement is counter to C99
+# AX_APPEND_COMPILE_FLAGS([-std=c++11]) -- Not ready yet
+# AX_APPEND_COMPILE_FLAGS([-pedantic]) -- ?
+# AX_APPEND_COMPILE_FLAGS([-Wstack-protector]) -- Issues on 32bit compile
+# AX_APPEND_COMPILE_FLAGS([-fstack-protector-all]) -- Issues on 32bit compile
+# AX_APPEND_COMPILE_FLAGS([-Wlong-long]) -- Don't turn on for compatibility issues memcached_stat_st
 
-AC_DEFUN([AX_HARDEN_COMPILER_FLAGS],
-[AC_REQUIRE([AX_CHECK_COMPILE_FLAG])
-AC_REQUIRE([AX_APPEND_FLAG])
-AC_REQUIRE([AX_CHECK_LINK_FLAG])
-AX_APPEND_COMPILE_FLAGS([-O2])
-AX_APPEND_COMPILE_FLAGS([-Werror])
-AX_APPEND_COMPILE_FLAGS([-Wall])
-AX_APPEND_COMPILE_FLAGS([-Wextra])
-AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
-AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
-AX_APPEND_COMPILE_FLAGS([-Wunused-result])
-AX_APPEND_COMPILE_FLAGS([-Wunused-variable])
-AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all])
-AX_APPEND_COMPILE_FLAGS([-fstack-protector-all])
-AX_APPEND_COMPILE_FLAGS([-ggdb])
-AX_APPEND_COMPILE_FLAGS([-fstack-protector-all])
-AX_APPEND_COMPILE_FLAGS([-Wstack-protector])
-AX_APPEND_COMPILE_FLAGS([-fwrapv])
-AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2])
-AX_APPEND_COMPILE_FLAGS([--param],[ssp-buffer-size=1])
-AX_CHECK_LINK_FLAG([-Werror])
-AX_CHECK_LINK_FLAG([-z relro -z now])
-])dnl AX_HARDEN_COMPILER_FLAGS
+#serial 2
+
+  AC_DEFUN([AX_HARDEN_LINKER_FLAGS], [
+      AC_REQUIRE([AX_CHECK_LINK_FLAG])
+      AC_REQUIRE([AX_VCS_CHECKOUT])
+      AC_REQUIRE([AX_DEBUG])
+      AC_REQUIRE([AX_CXX_COMPILER_VERSION])
+
+      AS_IF([test "$ac_cv_vcs_checkout" = yes], [
+          AX_CHECK_LINK_FLAG([-Werror])
+          ])
+      AX_CHECK_LINK_FLAG([-z relro -z now])
+      AX_CHECK_LINK_FLAG([-pie])
+      ])
+
+  AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS], [
+      AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
+      AC_REQUIRE([AX_HARDEN_LINKER_FLAGS])
+
+      AC_LANG_PUSH([C])
+      CFLAGS=
+
+      AX_APPEND_COMPILE_FLAGS([-g])
+      AS_IF([test "$ax_enable_debug" = yes], [
+        AX_APPEND_COMPILE_FLAGS([-ggdb])
+        AX_APPEND_COMPILE_FLAGS([-O0])
+        ],[
+        AX_APPEND_COMPILE_FLAGS([-O2])
+        ])
+
+      ac_cv_warnings_as_errors=no
+      AS_IF([test "$ac_cv_vcs_checkout" = yes], [
+        AX_APPEND_COMPILE_FLAGS([-Werror])
+        AX_APPEND_COMPILE_FLAGS([-Wpragmas])
+        ac_cv_warnings_as_errors=yes
+        ],[
+        AX_APPEND_COMPILE_FLAGS([-Wno-pragmas])
+        ])
+
+      AX_APPEND_COMPILE_FLAGS([-Wall])
+      AX_APPEND_COMPILE_FLAGS([-Wextra])
+      AX_APPEND_COMPILE_FLAGS([-std=c99])
+      dnl Anything below this comment please keep sorted.
+      AX_APPEND_COMPILE_FLAGS([--paramssp-buffer-size=1])
+      AX_APPEND_COMPILE_FLAGS([-Waddress])
+      AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
+      AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
+      dnl AX_APPEND_COMPILE_FLAGS([-Wc++-compat])
+      AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
+      AX_APPEND_COMPILE_FLAGS([-Wcomment])
+      AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
+      AX_APPEND_COMPILE_FLAGS([-Wformat-security])
+      AX_APPEND_COMPILE_FLAGS([-Wformat=2])
+      AX_APPEND_COMPILE_FLAGS([-Wlogical-op])
+      AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
+      AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
+      AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])
+      AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
+      AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
+      AX_APPEND_COMPILE_FLAGS([-Wnormalized=id])
+      AX_APPEND_COMPILE_FLAGS([-Wold-style-definition])
+      AX_APPEND_COMPILE_FLAGS([-Woverride-init])
+      AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
+      AX_APPEND_COMPILE_FLAGS([-Wpointer-sign])
+      AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
+      AX_APPEND_COMPILE_FLAGS([-Wshadow])
+      AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32])
+      AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
+      AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1])
+      AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes])
+      AX_APPEND_COMPILE_FLAGS([-Wswitch-enum])
+      AX_APPEND_COMPILE_FLAGS([-Wundef])
+      AX_APPEND_COMPILE_FLAGS([-Wunused-result])
+      AX_APPEND_COMPILE_FLAGS([-Wunused-variable])
+      AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
+      AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all])
+      AX_APPEND_COMPILE_FLAGS([-fwrapv])
+      AC_LANG_POP
+
+      ])
+
+  AC_DEFUN([AX_HARDEN_CXX_COMPILER_FLAGS], [
+      AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
+      AC_LANG_PUSH([C++])
+      CXXFLAGS=
+
+      AX_APPEND_COMPILE_FLAGS([-g])
+      AS_IF([test "$ax_enable_debug" = yes], [
+        AX_APPEND_COMPILE_FLAGS([-O0])
+        AX_APPEND_COMPILE_FLAGS([-ggdb])
+        ],[
+        AX_APPEND_COMPILE_FLAGS([-O2])
+        AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2])
+        ])
+
+      AS_IF([test "$ac_cv_vcs_checkout" = yes], [
+        AX_APPEND_COMPILE_FLAGS([-Werror])
+        AX_APPEND_COMPILE_FLAGS([-Wpragmas])
+        ],[
+        AX_APPEND_COMPILE_FLAGS([-Wno-pragmas])
+        ])
+
+      AX_APPEND_COMPILE_FLAGS([-Wall])
+      AX_APPEND_COMPILE_FLAGS([-Wextra])
+      dnl Anything below this comment please keep sorted.
+      AX_APPEND_COMPILE_FLAGS([--paramssp-buffer-size=1])
+      AX_APPEND_COMPILE_FLAGS([-Waddress])
+      AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
+      AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
+      AX_APPEND_COMPILE_FLAGS([-Wcomment])
+      AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy])
+      AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
+      AX_APPEND_COMPILE_FLAGS([-Wformat=2])
+      AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
+      AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
+      AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])
+      AX_APPEND_COMPILE_FLAGS([-Wlogical-op])
+      AX_APPEND_COMPILE_FLAGS([-Wnon-virtual-dtor])
+      AX_APPEND_COMPILE_FLAGS([-Wnormalized=id])
+      AX_APPEND_COMPILE_FLAGS([-Woverloaded-virtual])
+      AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
+      AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
+      AX_APPEND_COMPILE_FLAGS([-Wshadow])
+      AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32])
+      AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
+      AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1])
+      AX_APPEND_COMPILE_FLAGS([-Wswitch-enum])
+      AX_APPEND_COMPILE_FLAGS([-Wundef])
+      AX_APPEND_COMPILE_FLAGS([-Wc++11-compat])
+      AX_APPEND_COMPILE_FLAGS([-Wunused-result])
+      AX_APPEND_COMPILE_FLAGS([-Wunused-variable])
+      AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
+      AX_APPEND_COMPILE_FLAGS([-Wformat-security])
+      AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all])
+      AX_APPEND_COMPILE_FLAGS([-fwrapv])
+      AC_LANG_POP
+  ])
+
+  AC_DEFUN([AX_HARDEN_COMPILER_FLAGS], [
+      AC_REQUIRE([AX_HARDEN_CXX_COMPILER_FLAGS])
+      ])