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build: allow building with address sanitizer #4594

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Oct 13, 2021
Merged

build: allow building with address sanitizer #4594

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54 changes: 54 additions & 0 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -711,6 +711,7 @@ ac_subst_files=''
ac_user_opts='
enable_option_checking
enable_analyzer
enable_sanitizer
enable_apparmor
enable_selinux
enable_dbusproxy
Expand Down Expand Up @@ -1368,6 +1369,8 @@ Optional Features:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
--enable-analyzer enable GCC static analyzer
--enable-sanitizer=[address | memory | undefined]
enable a compiler-based sanitizer (debug)
--enable-apparmor enable apparmor
--enable-selinux SELinux labeling support
--disable-dbusproxy disable dbus proxy
Expand Down Expand Up @@ -3294,6 +3297,57 @@ if test "x$enable_analyzer" = "xyes"; then :

fi

# Check whether --enable-sanitizer was given.
if test "${enable_sanitizer+set}" = set; then :
enableval=$enable_sanitizer;
else
enable_sanitizer=no
fi

if test "x$enable_sanitizer" != "xno" ; then :
as_CACHEVAR=`$as_echo "ax_cv_check_cflags__-fsanitize=$enable_sanitizer" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fsanitize=$enable_sanitizer" >&5
$as_echo_n "checking whether C compiler accepts -fsanitize=$enable_sanitizer... " >&6; }
if eval \${$as_CACHEVAR+:} false; then :
$as_echo_n "(cached) " >&6
else

ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS -fsanitize=$enable_sanitizer"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */

int
main ()
{

;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_CACHEVAR=yes"
else
eval "$as_CACHEVAR=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
eval ac_res=\$$as_CACHEVAR
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_CACHEVAR"\" = x"yes"; then :

EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=$enable_sanitizer -fno-omit-frame-pointer"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=$enable_sanitizer"

else
as_fn_error $? "sanitizer not supported: $enable_sanitizer" "$LINENO" 5

fi

fi

HAVE_APPARMOR=""
# Check whether --enable-apparmor was given.
if test "${enable_apparmor+set}" = set; then :
Expand Down
9 changes: 9 additions & 0 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,15 @@ AS_IF([test "x$enable_analyzer" = "xyes"], [
EXTRA_CFLAGS="$EXTRA_CFLAGS -fanalyzer -Wno-analyzer-malloc-leak"
])

AC_ARG_ENABLE([sanitizer],
AS_HELP_STRING([--enable-sanitizer=@<:@address | memory | undefined@:>@], [enable a compiler-based sanitizer (debug)]), [], [enable_sanitizer=no])
AS_IF([test "x$enable_sanitizer" != "xno" ],
[AX_CHECK_COMPILE_FLAG([-fsanitize=$enable_sanitizer], [
EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=$enable_sanitizer -fno-omit-frame-pointer"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=$enable_sanitizer"
], [AC_MSG_ERROR([sanitizer not supported: $enable_sanitizer])]
)])

HAVE_APPARMOR=""
AC_ARG_ENABLE([apparmor],
AS_HELP_STRING([--enable-apparmor], [enable apparmor]))
Expand Down