+++ /dev/null
-# 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) 2012-2019 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 17
-
-AC_DEFUN([_SET_SANITIZE_FLAGS],
- [AS_IF([test "x$MINGW" != xyes],[
- AS_IF([test "x$enable_shared" = "xyes"],
- [AS_CASE([$ax_harden_sanitize],
- [thread],[
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=thread])],
- [address],[
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=address])],
- [rest],[
- _APPEND_COMPILE_FLAGS_ERROR([-fno-omit-frame-pointer])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=memory])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=alignment])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bool])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bounds])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=enum])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-cast-overflow])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-divide-by-zero])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer-divide-by-zero])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=null])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=return])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=shift])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=signed-integer-overflow])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unreachable])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unsigned-integer-overflow])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vla-bound])
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vptr])
- AS_IF([test "$ax_cv_c_compiler_vendor" != "clang"],[
- _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=object-size])
- ])
- ])
- ])
- ])
- ])
-
-# 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([_AX_HARDEN_SANITIZE],
- [AC_REQUIRE([AX_DEBUG])
- AC_ARG_WITH([sanitize],
- [AS_HELP_STRING([--with-sanitize],
- [Enable sanitize flag for compiler if it supports them @<:@default=no@:>@])],
- [AS_CASE([$with_sanitize],
- [thread],[
- ax_harden_sanitize='thread'],
- [address],[
- ax_harden_sanitize='address'],
- [ax_harden_sanitize='rest'])
- ],
- [AS_IF([test "x$ax_enable_debug" = xyes],[ax_harden_sanitize='rest'])])
- ])
-
-AC_DEFUN([_HARDEN_CC_COMPILER_FLAGS],
- [AC_LANG_PUSH([C])dnl
-
- AS_IF([test "x$ax_enable_debug" = xyes],
- [
- #_APPEND_COMPILE_FLAGS_ERROR([-H])
- _APPEND_COMPILE_FLAGS_ERROR([-g])
- _APPEND_COMPILE_FLAGS_ERROR([-g3])
- _APPEND_COMPILE_FLAGS_ERROR([-fno-eliminate-unused-debug-types])
- _APPEND_COMPILE_FLAGS_ERROR([-fno-omit-frame-pointer])
- ],[
- _APPEND_COMPILE_FLAGS_ERROR([-g])
- _APPEND_COMPILE_FLAGS_ERROR([-O2])
- ])
-
- AS_IF([test "x$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 "$ax_cv_c_compiler_vendor" = "clang"],[_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])])
-
- _APPEND_COMPILE_FLAGS_ERROR([-Wall])
- _APPEND_COMPILE_FLAGS_ERROR([-Wextra])
- _APPEND_COMPILE_FLAGS_ERROR([-Weverything])
- _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])
-# Anything below this comment please keep sorted.
-# _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-format-attribute])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes])
- _APPEND_COMPILE_FLAGS_ERROR([-Waddress])
- _APPEND_COMPILE_FLAGS_ERROR([-Wvarargs])
- _APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds])
- _APPEND_COMPILE_FLAGS_ERROR([-Wbad-function-cast])
-# Not in use -Wc++-compat
- _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
- _APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
- _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
- _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security])
- _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
- _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k])
- _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
- AS_IF([test "x$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$MINGW" = xyes],
- [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=pure])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])],
- [_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])])
- _APPEND_COMPILE_FLAGS_ERROR([-Wshadow])
- _APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32])
- _APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare])
- _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1])
- _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-prototypes])
- _APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum])
- _APPEND_COMPILE_FLAGS_ERROR([-Wundef])
-
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-result])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-parameter])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-local-typedefs])
- _APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings])
- _APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
- _APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
- _APPEND_COMPILE_FLAGS_ERROR([-pipe])
- AS_IF([test "x$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])
- # Stop error when using -pie on library builds
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-unused-command-line-argument])
-# GCC 4.5 removed this.
-# _APPEND_COMPILE_FLAGS_ERROR([-Wunreachable-code])
-
- _SET_SANITIZE_FLAGS
-
- 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_ERROR([-g])
- _APPEND_COMPILE_FLAGS_ERROR([-O2])
- ])
-
- 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$MINGW" = xyes],
- [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])
- _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-error=suggest-attribute=noreturn])
- _APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])],
- [_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])])
- _APPEND_COMPILE_FLAGS_ERROR([-Wshadow])
- _APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32])
- _APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare])
- _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1])
- _APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum])
- _APPEND_COMPILE_FLAGS_ERROR([-Wtrampolines])
- _APPEND_COMPILE_FLAGS_ERROR([-Wundef])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunsafe-loop-optimizations])
- _APPEND_COMPILE_FLAGS_ERROR([-funsafe-loop-optimizations])
- _APPEND_COMPILE_FLAGS_ERROR([-Wc++11-compat])
-# Disabled due to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55837
-# _APPEND_COMPILE_FLAGS_ERROR([-Weffc++])
- _APPEND_COMPILE_FLAGS_ERROR([-Wold-style-cast])
- _APPEND_COMPILE_FLAGS_ERROR([-Wclobbered])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-result])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-parameter])
- _APPEND_COMPILE_FLAGS_ERROR([-Wunused-local-typedefs])
- _APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings])
- _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security])
- _APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
- _APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
- _APPEND_COMPILE_FLAGS_ERROR([-pipe])
- AS_IF([test "x$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])
-
- 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])
- ])])])])
-
- _SET_SANITIZE_FLAGS
-
- AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
- [AX_APPEND_COMPILE_FLAGS([-Werror])])
- AC_LANG_POP([C++])
- ])
-
-# All of the heavy lifting happens in _HARDEN_LINKER_FLAGS,
-# _HARDEN_CC_COMPILER_FLAGS, _HARDEN_CXX_COMPILER_FLAGS
- AC_DEFUN([AX_HARDEN_COMPILER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_REQUIRE([AC_CANONICAL_HOST])
- AC_REQUIRE([AX_COMPILER_VERSION])
- AC_REQUIRE([AX_DEBUG])
- AC_REQUIRE([AX_ASSERT])
- _AX_HARDEN_SANITIZE
-
- AC_REQUIRE([gl_VISIBILITY])
- AS_IF([test -n "$CFLAG_VISIBILITY"],[CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY"])
-
- _HARDEN_LINKER_FLAGS
- _HARDEN_CC_COMPILER_FLAGS
- _HARDEN_CXX_COMPILER_FLAGS
- ])
-
projects / awesomized / libmemcached / blobdiff