Avoid C++ tests when the C++ cannot be linked.
This commit is contained in:
Roland McGrath
parent
8e2e833ac4
commit
e4693aa7c1
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2015-03-04 Roland McGrath <roland@hack.frob.com>
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* configure.ac (libc_cv_cxx_link_ok): New check.
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Reset CXX to empty if it fails to link.
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* configure: Regenerated.
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* dlfcn/Makefile (tests, modules-names): Add bug-atexit3 and
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bug-atexit3-lib only if $(CXX) is nonempty.
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* nptl/Makefile (tests): Likewise for tst-cancel24.
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(tests, tests-static): Likewise for tst-cancel24-static.
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* debug/Makefile (tests): Likewise for tst-chk4, tst-chk5, tst-chk6,
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tst-lfschk4, tst-lfschk5, and tst-lfschk6.
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2015-03-04 Andreas Schwab <schwab@suse.de>
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[BZ #17631]
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@ -677,10 +677,10 @@ hardcoded_path_in_tests
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use_default_link
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sysheaders
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with_fp
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READELF
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ac_ct_CXX
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CXXFLAGS
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CXX
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READELF
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CPP
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cross_compiling
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BUILD_CC
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@ -1627,6 +1627,52 @@ fi
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} # ac_fn_cxx_try_compile
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# ac_fn_cxx_try_link LINENO
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# -------------------------
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# Try to link conftest.$ac_ext, and return whether this succeeded.
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ac_fn_cxx_try_link ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { { ac_try="$ac_link"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$ac_try_echo"; } >&5
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(eval "$ac_link") 2>conftest.err
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ac_status=$?
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if test -s conftest.err; then
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grep -v '^ *+' conftest.err >conftest.er1
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cat conftest.er1 >&5
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mv -f conftest.er1 conftest.err
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fi
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; } && {
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test -z "$ac_cxx_werror_flag" ||
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test ! -s conftest.err
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} && test -s conftest$ac_exeext && {
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test "$cross_compiling" = yes ||
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test -x conftest$ac_exeext
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}; then :
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ac_retval=0
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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ac_retval=1
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fi
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# Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
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# created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
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# interfere with the next link command; also delete a directory that is
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# left behind by Apple's compiler. We do this before executing the actions.
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rm -rf conftest.dSYM conftest_ipa8_conftest.oo
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eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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as_fn_set_status $ac_retval
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} # ac_fn_cxx_try_link
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# ac_fn_c_try_link LINENO
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# -----------------------
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# Try to link conftest.$ac_ext, and return whether this succeeded.
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@ -2985,6 +3031,99 @@ if test -z "$CPP"; then
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CPP="$CC -E"
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fi
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if test -n "$ac_tool_prefix"; then
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# Extract the first word of "${ac_tool_prefix}readelf", so it can be a program name with args.
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set dummy ${ac_tool_prefix}readelf; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_READELF+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$READELF"; then
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ac_cv_prog_READELF="$READELF" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_READELF="${ac_tool_prefix}readelf"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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READELF=$ac_cv_prog_READELF
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if test -n "$READELF"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $READELF" >&5
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$as_echo "$READELF" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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fi
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if test -z "$ac_cv_prog_READELF"; then
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ac_ct_READELF=$READELF
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# Extract the first word of "readelf", so it can be a program name with args.
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set dummy readelf; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_ac_ct_READELF+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$ac_ct_READELF"; then
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ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_ac_ct_READELF="readelf"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
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if test -n "$ac_ct_READELF"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_READELF" >&5
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$as_echo "$ac_ct_READELF" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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if test "x$ac_ct_READELF" = x; then
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READELF="false"
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else
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case $cross_compiling:$ac_tool_warned in
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yes:)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
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$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
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ac_tool_warned=yes ;;
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esac
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READELF=$ac_ct_READELF
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fi
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else
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READELF="$ac_cv_prog_READELF"
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fi
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# We need the C++ compiler only for testing.
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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@ -3243,98 +3382,49 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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if test -n "$ac_tool_prefix"; then
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# Extract the first word of "${ac_tool_prefix}readelf", so it can be a program name with args.
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set dummy ${ac_tool_prefix}readelf; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_READELF+:} false; then :
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# It's useless to us if it can't link programs (e.g. missing -lstdc++).
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX can link programs" >&5
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$as_echo_n "checking whether $CXX can link programs... " >&6; }
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if ${libc_cv_cxx_link_ok+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$READELF"; then
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ac_cv_prog_READELF="$READELF" # Let the user override the test.
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_cxx_try_link "$LINENO"; then :
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libc_cv_cxx_link_ok=yes
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_READELF="${ac_tool_prefix}readelf"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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libc_cv_cxx_link_ok=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cxx_link_ok" >&5
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$as_echo "$libc_cv_cxx_link_ok" >&6; }
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if test $libc_cv_cxx_link_ok != yes; then :
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CXX=
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fi
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READELF=$ac_cv_prog_READELF
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if test -n "$READELF"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $READELF" >&5
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$as_echo "$READELF" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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fi
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if test -z "$ac_cv_prog_READELF"; then
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ac_ct_READELF=$READELF
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# Extract the first word of "readelf", so it can be a program name with args.
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set dummy readelf; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_ac_ct_READELF+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$ac_ct_READELF"; then
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ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_ac_ct_READELF="readelf"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
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if test -n "$ac_ct_READELF"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_READELF" >&5
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$as_echo "$ac_ct_READELF" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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if test "x$ac_ct_READELF" = x; then
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READELF="false"
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else
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case $cross_compiling:$ac_tool_warned in
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yes:)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
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$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
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ac_tool_warned=yes ;;
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esac
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READELF=$ac_ct_READELF
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fi
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else
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READELF="$ac_cv_prog_READELF"
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fi
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if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then
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as_fn_error $? "you must configure in a separate build directory" "$LINENO" 5
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11
configure.ac
11
configure.ac
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@ -50,9 +50,18 @@ if test $host != $build; then
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fi
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AC_SUBST(cross_compiling)
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AC_PROG_CPP
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AC_CHECK_TOOL(READELF, readelf, false)
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# We need the C++ compiler only for testing.
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AC_PROG_CXX
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AC_CHECK_TOOL(READELF, readelf, false)
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# It's useless to us if it can't link programs (e.g. missing -lstdc++).
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AC_CACHE_CHECK([whether $CXX can link programs], libc_cv_cxx_link_ok, [dnl
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AC_LANG_PUSH([C++])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
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[libc_cv_cxx_link_ok=yes],
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[libc_cv_cxx_link_ok=no])
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AC_LANG_POP([C++])])
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AS_IF([test $libc_cv_cxx_link_ok != yes], [CXX=])
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if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then
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AC_MSG_ERROR([you must configure in a separate build directory])
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@ -133,10 +133,13 @@ LDFLAGS-tst-backtrace6 = -rdynamic
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tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
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tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
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tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6 \
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tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 tst-backtrace4 \
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tst-backtrace5 tst-backtrace6
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ifneq (,$(CXX))
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tests += tst-chk4 tst-chk5 tst-chk6 tst-lfschk4 tst-lfschk5 tst-lfschk6
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endif
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extra-libs = libSegFault libpcprofile
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extra-libs-others = $(extra-libs)
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@ -36,12 +36,12 @@ endif
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ifeq (yes,$(build-shared))
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tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \
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bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \
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bug-atexit3 tstatexit bug-dl-leaf tst-rec-dlopen
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tstatexit bug-dl-leaf tst-rec-dlopen
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endif
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modules-names = glreflib1 glreflib2 glreflib3 failtestmod defaultmod1 \
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defaultmod2 errmsg1mod modatexit modcxaatexit \
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bug-dlsym1-lib1 bug-dlsym1-lib2 bug-atexit1-lib \
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bug-atexit2-lib bug-atexit3-lib bug-dl-leaf-lib \
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bug-atexit2-lib bug-dl-leaf-lib \
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bug-dl-leaf-lib-cb moddummy1 moddummy2
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failtestmod.so-no-z-defs = yes
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@ -57,6 +57,11 @@ tststatic2-ENV = $(tststatic-ENV)
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tststatic3-ENV = $(tststatic-ENV)
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tststatic4-ENV = $(tststatic-ENV)
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tststatic5-ENV = $(tststatic-ENV)
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ifneq (,$(CXX))
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tests += bug-atexit3
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modules-names += bug-atexit3-lib
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endif
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endif
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extra-test-objs += $(modules-names:=.os)
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@ -245,8 +245,8 @@ tests = tst-typesizes \
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tst-cancel6 tst-cancel7 tst-cancel8 tst-cancel9 tst-cancel10 \
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tst-cancel11 tst-cancel12 tst-cancel13 tst-cancel14 tst-cancel15 \
|
||||
tst-cancel16 tst-cancel17 tst-cancel18 tst-cancel19 tst-cancel20 \
|
||||
tst-cancel21 tst-cancel22 tst-cancel23 tst-cancel24 tst-cancel25 \
|
||||
tst-cancel-self tst-cancel-self-cancelstate \
|
||||
tst-cancel21 tst-cancel22 tst-cancel23 $(if $(CXX),tst-cancel24) \
|
||||
tst-cancel25 tst-cancel-self tst-cancel-self-cancelstate \
|
||||
tst-cancel-self-canceltype tst-cancel-self-testcancel \
|
||||
tst-cleanup0 tst-cleanup1 tst-cleanup2 tst-cleanup3 tst-cleanup4 \
|
||||
tst-flock1 tst-flock2 \
|
||||
|
|
@ -364,14 +364,19 @@ link-libc-static := $(common-objpfx)libc.a $(static-gnulib) \
|
|||
$(common-objpfx)libc.a
|
||||
|
||||
tests-static += tst-locale1 tst-locale2 tst-stackguard1-static \
|
||||
tst-cancel21-static tst-cancel24-static tst-cond8-static \
|
||||
tst-cancel21-static tst-cond8-static \
|
||||
tst-mutex8-static tst-mutexpi8-static tst-sem11-static \
|
||||
tst-sem12-static
|
||||
tests += tst-stackguard1-static tst-cancel21-static tst-cancel24-static \
|
||||
tests += tst-stackguard1-static tst-cancel21-static \
|
||||
tst-cond8-static tst-mutex8-static tst-mutexpi8-static \
|
||||
tst-sem11-static tst-sem12-static
|
||||
xtests-static += tst-setuid1-static
|
||||
|
||||
ifneq (,$(CXX))
|
||||
tests += tst-cancel24-static
|
||||
tests-static += tst-cancel24-static
|
||||
endif
|
||||
|
||||
# These tests are linked with libc before libpthread
|
||||
tests-reverse += tst-cancel5 tst-cancel23 tst-vfork1x tst-vfork2x
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue