diff options
Diffstat (limited to 'storage/maria/libmarias3/m4/ax_harden_compiler_flags.m4')
| -rw-r--r-- | storage/maria/libmarias3/m4/ax_harden_compiler_flags.m4 | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/storage/maria/libmarias3/m4/ax_harden_compiler_flags.m4 b/storage/maria/libmarias3/m4/ax_harden_compiler_flags.m4 new file mode 100644 index 00000000..63783b4a --- /dev/null +++ b/storage/maria/libmarias3/m4/ax_harden_compiler_flags.m4 @@ -0,0 +1,309 @@ +# vim:expandtab:shiftwidth=2:tabstop=2:smarttab: +# =========================================================================== +# https://github.com/BrianAker/ddm4/ +# =========================================================================== +# +# SYNOPSIS +# +# AX_HARDEN_COMPILER_FLAGS() AX_HARDEN_LINKER_FLAGS() +# +# DESCRIPTION +# +# Any compiler flag that "hardens" or tests code. C99 is assumed. +# +# LICENSE +# +# Copyright (C) 2012-2014 Brian Aker +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# +# * The names of its contributors may not be used to endorse or +# promote products derived from this software without specific prior +# written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Notes: +# We do not test for c99 or c++11, that is out of scope. + +# The Following flags are not checked for +# -Wdeclaration-after-statement is counter to C99 +# _APPEND_COMPILE_FLAGS_ERROR([-pedantic]) + +#serial 19 + +AC_DEFUN([_WARNINGS_AS_ERRORS], + [AC_CACHE_CHECK([if all warnings into errors],[ac_cv_warnings_as_errors], + [AS_IF([test "x$ac_cv_vcs_checkout" = xyes],[ac_cv_warnings_as_errors=yes], + [ac_cv_warnings_as_errors=no]) + ]) + ]) + +# Note: Should this be LIBS or LDFLAGS? +AC_DEFUN([_APPEND_LINK_FLAGS_ERROR], + [AX_APPEND_LINK_FLAGS([$1],[LDFLAGS],[-Werror]) + ]) + +AC_DEFUN([_APPEND_COMPILE_FLAGS_ERROR], + [AX_APPEND_COMPILE_FLAGS([$1],,[-Werror]) + ]) + +# Everything above this does the heavy lifting, while what follows does the specifics. + +AC_DEFUN([_HARDEN_LINKER_FLAGS], + [AS_IF([test "$ax_cv_c_compiler_vendor" != "clang"], + [_APPEND_LINK_FLAGS_ERROR([-z relro -z now]) + AS_IF([test "x$ac_cv_vcs_checkout" = xyes], + [_APPEND_LINK_FLAGS_ERROR([-rdynamic]) +# AX_APPEND_LINK_FLAGS([--coverage])]) + AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],[AX_APPEND_LINK_FLAGS([-Werror])]) + ]) + ]) + +AC_DEFUN([_HARDEN_CC_COMPILER_FLAGS], + [AC_LANG_PUSH([C])dnl + + AS_IF([test "x$ax_enable_debug" = xyes], + [ + #_APPEND_COMPILE_FLAGS_ERROR([-H]) + _APPEND_COMPILE_FLAGS_ERROR([-g]) + _APPEND_COMPILE_FLAGS_ERROR([-g3]) + _APPEND_COMPILE_FLAGS_ERROR([-fno-eliminate-unused-debug-types]) + _APPEND_COMPILE_FLAGS_ERROR([-fno-omit-frame-pointer]) + _APPEND_COMPILE_FLAGS_ERROR([-O0]) + ],[ + _APPEND_COMPILE_FLAGS_ERROR([-g]) + _APPEND_COMPILE_FLAGS_ERROR([-O3]) + ]) + + AS_IF([test "x$ac_cv_vcs_checkout" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-fstack-check]) +# _APPEND_COMPILE_FLAGS_ERROR([--coverage]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpragmas]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])], + [_APPEND_COMPILE_FLAGS_ERROR([-Wno-unknown-pragmas]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])]) + + AS_IF([test "$ax_cv_c_compiler_vendor" = "clang"],[_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])]) + + _APPEND_COMPILE_FLAGS_ERROR([-Wall]) + _APPEND_COMPILE_FLAGS_ERROR([-Wextra]) + _APPEND_COMPILE_FLAGS_ERROR([-Weverything]) + _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail]) +# Anything below this comment please keep sorted. +# _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-format-attribute]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes]) + _APPEND_COMPILE_FLAGS_ERROR([-Waddress]) + _APPEND_COMPILE_FLAGS_ERROR([-Wvarargs]) + _APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds]) + _APPEND_COMPILE_FLAGS_ERROR([-Wbad-function-cast]) +# Not in use -Wc++-compat + _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts]) + _APPEND_COMPILE_FLAGS_ERROR([-Wcomment]) + _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k]) + _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers]) + _APPEND_COMPILE_FLAGS_ERROR([-Wdeclaration-after-statement]) + AS_IF([test "x$MINGW" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])], + [_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])]) + _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-prototypes]) + _APPEND_COMPILE_FLAGS_ERROR([-Wnested-externs]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-sign]) + AS_IF([test "x$MINGW" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=pure]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])], + [_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])]) + _APPEND_COMPILE_FLAGS_ERROR([-Wshadow]) + _APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32]) + _APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare]) + _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1]) + _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-prototypes]) + _APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum]) + _APPEND_COMPILE_FLAGS_ERROR([-Wundef]) + + _APPEND_COMPILE_FLAGS_ERROR([-Wunused]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-result]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-parameter]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-local-typedefs]) + _APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-deprecated-declarations]) + _APPEND_COMPILE_FLAGS_ERROR([-fwrapv]) + _APPEND_COMPILE_FLAGS_ERROR([-pipe]) + AS_IF([test "x$MINGW" = xyes], + [], + [_APPEND_COMPILE_FLAGS_ERROR([-fPIE -pie])]) + _APPEND_COMPILE_FLAGS_ERROR([-Wsizeof-pointer-memaccess]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpacked]) + _APPEND_COMPILE_FLAGS_ERROR([-Wlong-long]) + _APPEND_COMPILE_FLAGS_ERROR([ftrapv]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-unused-command-line-argument]) +# GCC 4.5 removed this. +# _APPEND_COMPILE_FLAGS_ERROR([-Wunreachable-code]) + + AS_IF([test "x$ax_enable_debug" = xno], + [AS_IF([test "x$ac_cv_vcs_checkout" = xyes], + [AS_IF([test "x${host_os}" != "xmingw"], + [AS_IF([test "x$ac_c_gcc_recent" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-D_FORTIFY_SOURCE=2]) + #_APPEND_COMPILE_FLAGS_ERROR([-Wstack-protector]) + #_APPEND_COMPILE_FLAGS_ERROR([-fstack-protector --param=ssp-buffer-size=4]) + _APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all]) + ])])])]) + + AS_IF([test "x$ac_cv_warnings_as_errors" = xyes], + [AX_APPEND_COMPILE_FLAGS([-Werror])]) + + AC_LANG_POP([C]) + ]) + +AC_DEFUN([_HARDEN_CXX_COMPILER_FLAGS], + [AC_LANG_PUSH([C++]) + AS_IF([test "x$ax_enable_debug" = xyes], + [CXXFLAGS='' + #_APPEND_COMPILE_FLAGS_ERROR([-H]) + _APPEND_COMPILE_FLAGS_ERROR([-g]) + _APPEND_COMPILE_FLAGS_ERROR([-g3]) + _APPEND_COMPILE_FLAGS_ERROR([-fno-inline]) + _APPEND_COMPILE_FLAGS_ERROR([-fno-eliminate-unused-debug-types]) + _APPEND_COMPILE_FLAGS_ERROR([-fno-omit-frame-pointer]) + _APPEND_COMPILE_FLAGS_ERRPR([-O0]) + ],[ + _APPEND_COMPILE_FLAGS_ERROR([-g]) + _APPEND_COMPILE_FLAGS_ERROR([-O3]) + ]) + + AS_IF([test "x$ac_cv_vcs_checkout" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-fstack-check]) +# _APPEND_COMPILE_FLAGS_ERROR([--coverage]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpragmas]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])], + [_APPEND_COMPILE_FLAGS_ERROR([-Wno-unknown-pragmas]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])]) + + AS_IF([test "$ax_cv_c_compiler_vendor" = "clang"],[_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])]) + + _APPEND_COMPILE_FLAGS_ERROR([-Wall]) + _APPEND_COMPILE_FLAGS_ERROR([-Wextra]) + _APPEND_COMPILE_FLAGS_ERROR([-Weverything]) + _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail]) +# Anything below this comment please keep sorted. +# _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-format-attribute]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes]) + _APPEND_COMPILE_FLAGS_ERROR([-Wvarargs]) + _APPEND_COMPILE_FLAGS_ERROR([-Waddress]) + _APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds]) + _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts]) + _APPEND_COMPILE_FLAGS_ERROR([-Wcomment]) + _APPEND_COMPILE_FLAGS_ERROR([-Wctor-dtor-privacy]) + _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k]) + _APPEND_COMPILE_FLAGS_ERROR([-Wmaybe-uninitialized]) + _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers]) + _APPEND_COMPILE_FLAGS_ERROR([-Wlogical-op]) + _APPEND_COMPILE_FLAGS_ERROR([-Wnon-virtual-dtor]) + _APPEND_COMPILE_FLAGS_ERROR([-Wnormalized=id]) + _APPEND_COMPILE_FLAGS_ERROR([-Woverloaded-virtual]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith]) + AS_IF([test "x$MINGW" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn]) + _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-error=suggest-attribute=noreturn]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])], + [_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])]) + _APPEND_COMPILE_FLAGS_ERROR([-Wshadow]) + _APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32]) + _APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare]) + _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1]) + _APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum]) + _APPEND_COMPILE_FLAGS_ERROR([-Wtrampolines]) + _APPEND_COMPILE_FLAGS_ERROR([-Wundef]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunsafe-loop-optimizations]) + _APPEND_COMPILE_FLAGS_ERROR([-funsafe-loop-optimizations]) + _APPEND_COMPILE_FLAGS_ERROR([-Wc++11-compat]) +# _APPEND_COMPILE_FLAGS_ERROR([-Weffc++]) +# _APPEND_COMPILE_FLAGS_ERROR([-Wold-style-cast]) + _APPEND_COMPILE_FLAGS_ERROR([-Wclobbered]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-result]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-parameter]) + _APPEND_COMPILE_FLAGS_ERROR([-Wunused-local-typedefs]) + _APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings]) + _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security]) + _APPEND_COMPILE_FLAGS_ERROR([-Wno-deprecated-declarations]) + _APPEND_COMPILE_FLAGS_ERROR([-fwrapv]) + _APPEND_COMPILE_FLAGS_ERROR([-pipe]) + AS_IF([test "x$MINGW" = xyes], + [], + [_APPEND_COMPILE_FLAGS_ERROR([-fPIE -pie])]) + _APPEND_COMPILE_FLAGS_ERROR([-Wsizeof-pointer-memaccess]) + _APPEND_COMPILE_FLAGS_ERROR([-Wpacked]) + _APPEND_COMPILE_FLAGS_ERROR([-Wlong-long]) +# GCC 4.5 removed this. +# _APPEND_COMPILE_FLAGS_ERROR([-Wunreachable-code]) +# Disable c++11 long long warning for brew openssl on Mac + AS_IF([test "$ax_cv_c_compiler_vendor" = "clang"],[ + _APPEND_COMPILE_FLAGS_ERROR([-Wno-c++11-long-long])]) + AS_IF([test "x$ax_enable_debug" = xno], + [AS_IF([test "x$ac_cv_vcs_checkout" = xyes], + [AS_IF([test "x${host_os}" != "xmingw"], + [AS_IF([test "x$ac_c_gcc_recent" = xyes], + [_APPEND_COMPILE_FLAGS_ERROR([-D_FORTIFY_SOURCE=2]) + #_APPEND_COMPILE_FLAGS_ERROR([-Wstack-protector]) + #_APPEND_COMPILE_FLAGS_ERROR([-fstack-protector --param=ssp-buffer-size=4]) + _APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all]) + ])])])]) + + AS_IF([test "x$ac_cv_warnings_as_errors" = xyes], + [AX_APPEND_COMPILE_FLAGS([-Werror])]) + AC_LANG_POP([C++]) + ]) + +# All of the heavy lifting happens in _HARDEN_LINKER_FLAGS, +# _HARDEN_CC_COMPILER_FLAGS, _HARDEN_CXX_COMPILER_FLAGS + AC_DEFUN([AX_HARDEN_COMPILER_FLAGS], + [AC_PREREQ([2.63])dnl + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AX_COMPILER_VERSION]) + AC_REQUIRE([AX_DEBUG]) + AC_REQUIRE([AX_ASSERT]) + _WARNINGS_AS_ERRORS + + AC_REQUIRE([gl_VISIBILITY]) + AS_IF([test -n "$CFLAG_VISIBILITY"],[CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY"]) + + _HARDEN_LINKER_FLAGS + _HARDEN_CC_COMPILER_FLAGS + ]) + |