ce2f393bc7
1. Remove many redundant macros. 2. Reorder several macros to more appropriate locations. 3. Several macros take lists of items to process, not just individual items. Combined duplicated macros' parameters into lists. 4. Some macros had unnecessary parameters. 5. Added some AX_REQUIRE_DEFINED() checks for the macros used. 6. Add cyassl/options.h to the AC_CONFIG_FILES list. It will be recreated from the template when running config.status the same as wolfssl/options.h 7. Remove the dist-dir rule from Makefile.am. This is prefering the process rather than automating that one step. Make dist will not run config.status. * AC_PROG_CC must be before any macros that will try to compile for tests. * AC_CHECK_SIZEOF takes a single type, no size values. * Only one of the AC_CANONICAL_X macros are expanded. Removed AC_CANONICAL_BUILD since it is never actually used. * Removed the AC_PROG_CXX and anything C++ related. * Removed LT_LANG([C]) as it is the default and the C doesn't do anything.
240 lines
12 KiB
Plaintext
240 lines
12 KiB
Plaintext
# ===========================================================================
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# https://github.com/BrianAker/ddm4/
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_HARDEN_COMPILER_FLAGS()
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# AX_HARDEN_LINKER_FLAGS()
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# AX_HARDEN_CC_COMPILER_FLAGS()
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# AX_HARDEN_CXX_COMPILER_FLAGS()
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#
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# DESCRIPTION
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#
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# Any compiler flag that "hardens" or tests code. C99 is assumed.
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#
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# NOTE: Implementation based on AX_APPEND_FLAG.
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#
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# LICENSE
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#
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# Copyright (C) 2012 Brian Aker
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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#
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# * The names of its contributors may not be used to endorse or
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# promote products derived from this software without specific prior
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# written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# The Following flags are not checked for
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# -Wdeclaration-after-statement is counter to C99
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# AX_APPEND_COMPILE_FLAGS([-std=c++11]) -- Not ready yet
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# AX_APPEND_COMPILE_FLAGS([-pedantic]) -- ?
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# AX_APPEND_COMPILE_FLAGS([-Wstack-protector]) -- Issues on 32bit compile
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# AX_APPEND_COMPILE_FLAGS([-fstack-protector-all]) -- Issues on 32bit compile
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# AX_APPEND_COMPILE_FLAGS([-Wlong-long]) -- Don't turn on for compatibility issues memcached_stat_st
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# AX_APPEND_COMPILE_FLAGS([-Wold-style-definition],,[$ax_append_compile_cflags_extra])
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# AX_APPEND_COMPILE_FLAGS([-std=c99],,[$ax_append_compile_cflags_extra])
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# AX_APPEND_COMPILE_FLAGS([-Wlogical-op],,[$ax_append_compile_cflags_extra])
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# AX_APPEND_COMPILE_FLAGS([-fstack-check],,[$ax_append_compile_cflags_extra]) -- problems with fastmath stack size checks
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# AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all],,[$ax_append_compile_cflags_extra]) -- causes RSA verify problem on x64
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# AX_APPEND_COMPILE_FLAGS([-Wunreachable-code],,[$ax_append_compile_cflags_extra]) -- older clang and when gcc had it are buggy
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# AX_APPEND_COMPILE_FLAGS([-fPIE],,[$ax_append_compile_cflags_extra]) -- Flag for executables not libraries
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#serial 4.2
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# changes: deleted the clearing of CFLAGS
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AC_DEFUN([AX_HARDEN_LINKER_FLAGS], [
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AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
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AC_REQUIRE([AX_VCS_CHECKOUT])
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AC_REQUIRE([AX_DEBUG])
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dnl If we are inside of VCS we append -Werror, otherwise we just use it to test other flags
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AX_HARDEN_LIB=
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ax_append_compile_link_flags_extra=
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AS_IF([test "x$ac_cv_vcs_checkout" = "xyes"],[
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AX_CHECK_LINK_FLAG([-Werror],[
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AX_HARDEN_LIB="-Werror $AX_HARDEN_LIB"
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])
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],[
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AX_CHECK_LINK_FLAG([-Werror],[
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ax_append_compile_link_flags_extra='-Werror'
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])
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])
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AX_CHECK_LINK_FLAG([-z relro -z now],[
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AX_HARDEN_LIB="-z relro -z now $AX_HARDEN_LIB"
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],,[$ax_append_compile_link_flags_extra])
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AX_CHECK_LINK_FLAG([-pie],[
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AX_HARDEN_LIB="-pie $AX_HARDEN_LIB"
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],,[$ax_append_compile_link_flags_extra])
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LIB="$LIB $AX_HARDEN_LIB"
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])
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AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS], [
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AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
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AC_REQUIRE([AX_HARDEN_LINKER_FLAGS])
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AC_LANG_PUSH([C])
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ac_cv_warnings_as_errors=no
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ax_append_compile_cflags_extra=
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AS_IF([test "$ac_cv_vcs_checkout" = "yes"],[
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AX_APPEND_COMPILE_FLAGS([-Werror])
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ac_cv_warnings_as_errors=yes
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],[
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AX_APPEND_COMPILE_FLAGS([-Werror],[ax_append_compile_cflags_extra])
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])
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AS_IF([test "$ax_enable_debug" = "yes"], [
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AX_APPEND_COMPILE_FLAGS([-g])
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AX_APPEND_COMPILE_FLAGS([-ggdb],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-O0],,[$ax_append_compile_cflags_extra])
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],[])
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AX_APPEND_COMPILE_FLAGS([-Wno-pragmas],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wall],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wno-strict-aliasing],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wextra],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunknown-pragmas],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wthis-test-should-fail],,[$ax_append_compile_cflags_extra])
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dnl Anything below this comment please keep sorted.
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AS_IF([test "$CC" = "clang"],[],[
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AX_APPEND_COMPILE_FLAGS([--param=ssp-buffer-size=1],,[$ax_append_compile_cflags_extra])
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])
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AX_APPEND_COMPILE_FLAGS([-Waddress],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Warray-bounds],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast],,[$ax_append_compile_cflags_extra])
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dnl Not in use -Wc++-compat
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AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wcomment],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-equal],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wformat-security],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wformat=2],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wnested-externs],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wnormalized=id],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Woverride-init],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-arith],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-sign],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wshadow],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wsign-compare],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wswitch-enum],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wundef],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused-result],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused-variable],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wwrite-strings],,[$ax_append_compile_cflags_extra])
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AX_APPEND_COMPILE_FLAGS([-fwrapv],,[$ax_append_compile_cflags_extra])
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AC_LANG_POP
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])
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AC_DEFUN([AX_HARDEN_CXX_COMPILER_FLAGS], [
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AC_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
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AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
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AC_LANG_PUSH([C++])
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ax_append_compile_cxxflags_extra=
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AS_IF([test "$ac_cv_warnings_as_errors" = "yes"],[
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AX_APPEND_COMPILE_FLAGS([-Werror])
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],[
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AX_APPEND_COMPILE_FLAGS([-Werror],[ax_append_compile_cxxflags_extra])
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])
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AS_IF([test "$ax_enable_debug" = "yes" ], [
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AX_APPEND_COMPILE_FLAGS([-g],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-O0],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-ggdb],,[$ax_append_compile_cxxflags_extra])
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],[
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AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2],,[$ax_append_compile_cxxflags_extra])
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])
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AS_IF([test "$ac_cv_vcs_checkout" = "yes" ], [
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AX_APPEND_COMPILE_FLAGS([-Werror],,[$ax_append_compile_cxxflags_extra])
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],[
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AX_APPEND_COMPILE_FLAGS([-Wno-pragmas],,[$ax_append_compile_cxxflags_extra])
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])
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AX_APPEND_COMPILE_FLAGS([-Wall],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wno-strict-aliasing],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wextra],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunknown-pragmas],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wthis-test-should-fail],,[$ax_append_compile_cxxflags_extra])
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dnl Anything below this comment please keep sorted.
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AX_APPEND_COMPILE_FLAGS([--param=ssp-buffer-size=1],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Waddress],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Warray-bounds],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wcomment],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-equal],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wformat=2],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wnon-virtual-dtor],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wnormalized=id],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Woverloaded-virtual],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-arith],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wshadow],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wsign-compare],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wswitch-enum],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wundef],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wc++11-compat],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused-result],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wunused-variable],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wwrite-strings],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-Wformat-security],,[$ax_append_compile_cxxflags_extra])
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AX_APPEND_COMPILE_FLAGS([-fwrapv],,[$ax_append_compile_cxxflags_extra])
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AC_LANG_POP
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])
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AC_DEFUN([AX_HARDEN_COMPILER_FLAGS], [
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AC_REQUIRE([AX_HARDEN_CXX_COMPILER_FLAGS])
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])
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AC_DEFUN([AX_CC_OTHER_FLAGS], [
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AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
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AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
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AC_LANG_PUSH([C])
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AX_APPEND_COMPILE_FLAGS([-pipe],,[$ax_append_compile_cflags_extra])
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AC_LANG_POP
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])
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