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When building target binaries, ensure that the warning flags selected for the command line match the target compiler.

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bfd	* warning.m4 (AC_EGREP_CPP_FOR_BUILD): Introduce macro
	to verify CC_FOR_BUILD compiler.
	(AM_BINUTILS_WARNINGS): Introduce ac_cpp_for_build variable
	and add CC_FOR_BUILD compiler checks.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

binutils	* Makefile.am: Replace AM_CLFAGS with AM_CFLAGS_FOR_BUILD
	when building with CC_FOR_BUILD compiler.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gas	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gold	* Makefile.in: Regenerate.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

gprof	* Makefile.in: Regenerate.
	* configure: Likewise.

ld	* Makefile.in: Regenerate.
	* configure: Likewise.

opcodes	* Makefile.in: Regenerate.
	* configure: Likewise.
This commit is contained in:
Vlad Zakharov
2016-09-26 16:36:08 +01:00
committed by Nick Clifton
parent 384f750334
commit c5da193232
27 changed files with 461 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
bfd/warning.m4
View File

@ -17,12 +17,34 @@ dnl along with this program; see the file COPYING3. If not see
dnl <http://www.gnu.org/licenses/>.
dnl
# AC_EGREP_CPP_FOR_BUILD(PATTERN, PROGRAM,
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# ------------------------------------------------------
AC_DEFUN([AC_EGREP_CPP_FOR_BUILD],
[AC_LANG_PREPROC_REQUIRE()dnl
AC_REQUIRE([AC_PROG_EGREP])dnl
AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
AS_IF([dnl eval is necessary to expand ac_cpp.
dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
(eval "$ac_cpp_for_build conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
dnl Quote $1 to prevent m4 from eating character classes
$EGREP "[$1]" >/dev/null 2>&1],
[$3],
[$4])
rm -f conftest*
])# AC_EGREP_CPP_FOR_BUILD
AC_DEFUN([AM_BINUTILS_WARNINGS],[
# Set the 'development' global.
. $srcdir/../bfd/development.sh
# Set acp_cpp_for_build variable
ac_cpp_for_build="$CC_FOR_BUILD -E $CPPFLAGS_FOR_BUILD"
# Default set of GCC warnings to enable.
GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
GCC_WARN_CFLAGS_FOR_BUILD="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
# Add -Wshadow if the compiler is a sufficiently recent version of GCC.
AC_EGREP_CPP([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow")
@ -34,6 +56,14 @@ AC_EGREP_CPP([^[0-4]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usa
WARN_WRITE_STRINGS=""
AC_EGREP_CPP([^[0-3]$],[__GNUC__],,WARN_WRITE_STRINGS="-Wwrite-strings")
# Verify CC_FOR_BUILD to be compatible with waring flags
# Add -Wshadow if the compiler is a sufficiently recent version of GCC.
AC_EGREP_CPP_FOR_BUILD([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wshadow")
# Add -Wstack-usage if the compiler is a sufficiently recent version of GCC.
AC_EGREP_CPP_FOR_BUILD([^[0-4]$],[__GNUC__],,GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wstack-usage=262144")
AC_ARG_ENABLE(werror,
[ --enable-werror treat compile warnings as errors],
[case "${enableval}" in
@ -47,6 +77,7 @@ case "${host}" in
*-*-mingw32*)
if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format"
GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wno-format"
fi
;;
*) ;;
@ -60,25 +91,32 @@ fi
NO_WERROR=
if test "${ERROR_ON_WARNING}" = yes ; then
GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Werror"
NO_WERROR="-Wno-error"
fi
if test "${GCC}" = yes ; then
WARN_CFLAGS="${GCC_WARN_CFLAGS}"
WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD}"
fi
AC_ARG_ENABLE(build-warnings,
[ --enable-build-warnings enable build-time compiler warnings],
[case "${enableval}" in
yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}"
WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD}";;
no) if test "${GCC}" = yes ; then
WARN_CFLAGS="-w"
WARN_CFLAGS_FOR_BUILD="-w"
fi;;
,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}"
WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD} ${t}";;
*,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
*) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}"
WARN_CFLAGS_FOR_BUILD="${t} ${GCC_WARN_CFLAGS_FOR_BUILD}";;
*) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`
WARN_CFLAGS_FOR_BUILD=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac])
if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
@ -86,6 +124,7 @@ if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
fi
AC_SUBST(WARN_CFLAGS)
AC_SUBST(WARN_CFLAGS_FOR_BUILD)
AC_SUBST(NO_WERROR)
AC_SUBST(WARN_WRITE_STRINGS)
])