mirror of https://github.com/wolfSSL/wolfssl.git
166 lines
6.8 KiB
Plaintext
166 lines
6.8 KiB
Plaintext
# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
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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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#
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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]) -- Mixed with -Werror either before or after is a problem because tests use main() instead of main(void)
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# AX_APPEND_COMPILE_FLAGS([-std=c99]) -- problem seeing DT_REG from dirent.h on some systems
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# AX_APPEND_COMPILE_FLAGS([-Wlogical-op]) -- doesn't like strchr argument in mygetopt for now
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#serial 2
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AC_DEFUN([AX_HARDEN_LINKER_FLAGS], [
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AC_REQUIRE([AX_CHECK_LINK_FLAG])
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AC_REQUIRE([AX_VCS_CHECKOUT])
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AS_IF([test "$ac_cv_vcs_checkout" = yes], [
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AX_CHECK_LINK_FLAG([-Werror])
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])
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AX_CHECK_LINK_FLAG([-z relro -z now])
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])
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AC_DEFUN([AX_HARDEN_C_COMPILER_FLAGS], [
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AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
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AC_REQUIRE([AX_HARDEN_LINKER_FLAGS])
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AC_LANG_PUSH([C])
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AS_IF([test "$ax_with_debug" = yes], [
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AX_APPEND_COMPILE_FLAGS([-O0])],[])
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ac_cv_warnings_as_errors=no
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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([-Wall])
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AX_APPEND_COMPILE_FLAGS([-Wextra])
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AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
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AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
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AX_APPEND_COMPILE_FLAGS([-Woverride-init])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes])
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AX_APPEND_COMPILE_FLAGS([-Wno-strict-aliasing])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
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AX_APPEND_COMPILE_FLAGS([-Wundef])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
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AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
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AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
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AX_APPEND_COMPILE_FLAGS([-Wcomment])
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AX_APPEND_COMPILE_FLAGS([-Wformat=2])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations])
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AX_APPEND_COMPILE_FLAGS([-Wswitch-enum])
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AX_APPEND_COMPILE_FLAGS([-Winit-self])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
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AX_APPEND_COMPILE_FLAGS([-Wdeclaration-after-statement])
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AX_APPEND_COMPILE_FLAGS([-Waddress])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])
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AX_APPEND_COMPILE_FLAGS([-Wnormalized=id])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1])
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AX_APPEND_COMPILE_FLAGS([-Wformat])
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AX_APPEND_COMPILE_FLAGS([-Wformat-security])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-sign])
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AX_APPEND_COMPILE_FLAGS([-Wshadow])
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AX_APPEND_COMPILE_FLAGS([-Wswitch-default])
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AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
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AC_LANG_POP
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])
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AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS], [
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AC_REQUIRE([AX_HARDEN_C_COMPILER_FLAGS])
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AC_LANG_PUSH([C++])
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AS_IF([test "$ax_with_debug" = yes], [
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AX_APPEND_COMPILE_FLAGS([-O0])],[
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AX_APPEND_COMPILE_FLAGS([-O2])
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AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2])
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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])
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])
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AX_APPEND_COMPILE_FLAGS([-Wall])
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AX_APPEND_COMPILE_FLAGS([-Wextra])
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AX_APPEND_COMPILE_FLAGS([-Wpragmas])
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AX_APPEND_COMPILE_FLAGS([--paramssp-buffer-size=1])
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AX_APPEND_COMPILE_FLAGS([-Waddress])
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AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
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AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
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AX_APPEND_COMPILE_FLAGS([-Wcomment])
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AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
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AX_APPEND_COMPILE_FLAGS([-Wformat=2])
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AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])
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AX_APPEND_COMPILE_FLAGS([-Wnon-virtual-dtor])
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AX_APPEND_COMPILE_FLAGS([-Wnormalized=id])
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AX_APPEND_COMPILE_FLAGS([-Woverloaded-virtual])
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AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
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AX_APPEND_COMPILE_FLAGS([-Wshadow])
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AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32])
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AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
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AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1])
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AX_APPEND_COMPILE_FLAGS([-Wswitch-enum])
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AX_APPEND_COMPILE_FLAGS([-Wundef])
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AX_APPEND_COMPILE_FLAGS([-Wunused-result])
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AX_APPEND_COMPILE_FLAGS([-Wunused-variable])
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AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
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AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all])
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AX_APPEND_COMPILE_FLAGS([-fwrapv])
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AX_APPEND_COMPILE_FLAGS([-ggdb])
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AC_LANG_POP
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])
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