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Add TEST_CC and TEST_CXX support
Support testing glibc build with a different C compiler or a different C++ compiler with $ ../glibc-VERSION/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1" 1. Add LIBC_TRY_CC_AND_TEST_CC_OPTION, LIBC_TRY_CC_AND_TEST_CC_COMMAND and LIBC_TRY_CC_AND_TEST_LINK to test both CC and TEST_CC. 2. Add check and xcheck targets to Makefile.in and override build compiler options with ones from TEST_CC and TEST_CXX. Tested on Fedora 41/x86-64: 1. Building with GCC 14.2.1 and testing with GCC 6.4.1 and GCC 11.2.1. 2. Building with GCC 15 and testing with GCC 6.4.1. Support for GCC versions older than GCC 6.2 may need to change the test sources. Other targets may need to update configure.ac under sysdeps and modify Makefile.in to override target build compiler options. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu
parent
4d9a4c02f9
commit
b79f257533
6
INSTALL
6
INSTALL
@ -49,6 +49,12 @@ if 'CFLAGS' is specified it must enable optimization. For example:
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$ ../glibc-VERSION/configure CC="gcc -m32" CFLAGS="-O3"
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To test the GNU C Library with a different C compiler or a different
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C++ compiler, 'TEST_CC=COMPILER' and 'TEST_CXX=COMPILER' arguments can
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be passed to 'configure'. For example:
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$ ../glibc-VERSION/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1"
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The following list describes all of the available options for
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'configure':
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26
Makefile.in
26
Makefile.in
@ -1,5 +1,17 @@
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srcdir = @srcdir@
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TEST_CC = @TEST_CC@
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TEST_CXX = @TEST_CXX@
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test-cc-option-wimplicit-fallthrough = @libc_cv_test_cc_wimplicit_fallthrough@
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test-config-cflags-mprefer-vector-width = @libc_cv_test_cc_mprefer_vector_width@
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test-config-cflags-signaling-nans = @libc_cv_test_cc_signaling_nans@
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test-config-cflags-wno-ignored-attributes = @libc_cv_test_wno_ignored_attributes@
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test-enable-cet = @test_enable_cet@
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test-have-mamx-tile = @libc_cv_test_x86_have_amx_tile@
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test-have-mtls-descriptor = @libc_cv_test_mtls_descriptor@
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test-have-static-pie = @libc_cv_test_static_pie@
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test-supported-fortify = @libc_cv_test_supported_fortify_source@
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# Uncomment the line below if you want to do parallel build.
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# PARALLELMFLAGS = -j 4
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@ -8,6 +20,20 @@ srcdir = @srcdir@
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all .DEFAULT:
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$(MAKE) -r PARALLELMFLAGS="$(PARALLELMFLAGS)" -C $(srcdir) objdir=`pwd` $@
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check xcheck:
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$(MAKE) -r PARALLELMFLAGS="$(PARALLELMFLAGS)" -C $(srcdir) \
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CC="$(TEST_CC)" CXX="$(TEST_CXX)" \
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cc-option-wimplicit-fallthrough="$(test-cc-option-wimplicit-fallthrough)" \
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config-cflags-mprefer-vector-width="$(test-config-cflags-mprefer-vector-width)" \
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config-cflags-signaling-nans="$(test-config-cflags-signaling-nans)" \
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config-cflags-wno-ignored-attributes="$(test-config-cflags-wno-ignored-attributes)" \
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enable-cet="$(test-enable-cet)" \
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have-mamx-tile="$(test-have-mamx-tile)" \
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have-mtls-descriptor="$(test-have-mtls-descriptor)" \
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have-static-pie="$(test-have-static-pie)" \
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supported-fortify="$(test-supported-fortify)" \
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objdir=`pwd` $@
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install:
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LC_ALL=C; export LC_ALL; \
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$(MAKE) -r PARALLELMFLAGS="$(PARALLELMFLAGS)" -C $(srcdir) objdir=`pwd` $@
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83
aclocal.m4
vendored
83
aclocal.m4
vendored
@ -315,3 +315,86 @@ case "$prefix" in
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fi
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;;
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esac])
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dnl Run a test with TEST_CC.
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dnl LIBC_CHECK_TEST_CC([commands])
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AC_DEFUN([LIBC_CHECK_TEST_CC],
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[
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saved_CC="$CC"
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CC="$TEST_CC"
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[$1]
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CC="$saved_CC"
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])
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dnl Test a CC and TEST_CC compiler option or options with an empty input
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dnl file.
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dnl LIBC_TRY_CC_AND_TEST_CC_OPTION([message], [options],
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dnl [CC-cache-id], [CC-action-if-true], [CC-action-if-false]
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dnl [TEST_CC-cache-id], [TEST_CC-action-if-true], [TEST_CC-action-if-false])
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AC_DEFUN([LIBC_TRY_CC_AND_TEST_CC_OPTION],
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[
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AC_CACHE_CHECK([$1], $3,
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[LIBC_TRY_CC_OPTION([$2], [$4], [$5])])
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if test "$TEST_CC" = "$CC"; then
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$6=$[$3]
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else
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LIBC_CHECK_TEST_CC(
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AC_CACHE_CHECK([$1 in testing], $6,
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[LIBC_TRY_CC_OPTION([$2], [$7], [$8])])
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)
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fi
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])
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dnl Test a CC and TEST_CC compiler option or options with an input file.
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dnl LIBC_TRY_CC_AND_TEST_CC_COMMAND([message], [code], [options],
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dnl [CC-cache-id], [CC-action-if-true], [CC-action-if-false]
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dnl [TEST_CC-cache-id], [TEST_CC-action-if-true], [TEST_CC-action-if-false])
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AC_DEFUN([LIBC_TRY_CC_AND_TEST_CC_COMMAND],
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[
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cat > conftest.c <<EOF
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$2
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EOF
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AC_CACHE_CHECK([$1], $4, [dnl
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if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $3 conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD])
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then
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[$5]
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else
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[$6]
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fi
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])
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if test "$TEST_CC" = "$CC"; then
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$7=$[$4]
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else
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LIBC_CHECK_TEST_CC(
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AC_CACHE_CHECK([$1 in testing], $7, [dnl
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if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $3 conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD])
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then
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[$8]
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else
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[$9]
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fi])
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)
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fi
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rm -f conftest*])
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dnl Test if CC and TEST_CC can link with an input file.
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dnl LIBC_TRY_CC_AND_TEST_LINK([message], [code],
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dnl [CC-cache-id], [CC-action-if-true], [CC-action-if-false]
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dnl [TEST_CC-cache-id], [TEST_CC-action-if-true], [TEST_CC-action-if-false])
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AC_DEFUN([LIBC_TRY_CC_AND_TEST_LINK],
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[
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AC_CACHE_CHECK([$1], $3, [
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AC_LINK_IFELSE([AC_LANG_PROGRAM([], [$2])],
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[$4], [$5])
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])
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if test "$TEST_CC" = "$CC"; then
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$6=$[$3]
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else
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LIBC_CHECK_TEST_CC(
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AC_CACHE_CHECK([$1 in testing], $6, [
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AC_LINK_IFELSE([AC_LANG_PROGRAM([], [$2])],
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[$7], [$8])
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])
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)
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fi
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])
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331
configure
vendored
331
configure
vendored
@ -620,6 +620,9 @@ DEFINES
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static_nss
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profile
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libc_cv_multidir
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libc_cv_test_x86_have_amx_tile
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test_enable_cet
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libc_cv_test_cc_mprefer_vector_width
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shared
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static
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ldd_rewrite_script
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@ -641,15 +644,21 @@ fortify_source
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no_fortify_source
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libc_cv_fortify_source
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enable_fortify_source
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libc_cv_test_supported_fortify_source
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have_selinux
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have_libcap
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have_libaudit
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LIBGD
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libc_cv_test_cc_wimplicit_fallthrough
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libc_cv_cc_loop_to_function
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libc_cv_test_cc_signaling_nans
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libc_cv_cc_submachine
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libc_cv_cc_nofma
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libc_cv_test_wno_ignored_attributes
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libc_cv_test_mtls_descriptor
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libc_cv_has_glob_dat
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libc_cv_fpie
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libc_cv_test_static_pie
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libc_cv_z_execstack
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ASFLAGS_config
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libc_cv_cc_with_libunwind
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@ -704,12 +713,14 @@ man_pages_version
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rtld_early_cflags
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extra_nonshared_cflags
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sysheaders
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TEST_CXX
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ac_ct_CXX
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CXXFLAGS
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CXX
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CPP
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cross_compiling
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BUILD_CC
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TEST_CC
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OBJEXT
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ac_ct_CC
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CPPFLAGS
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@ -819,10 +830,12 @@ CFLAGS
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LDFLAGS
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LIBS
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CPPFLAGS
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TEST_CC
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CPP
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CXX
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CXXFLAGS
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CCC'
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CCC
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TEST_CXX'
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ac_subdirs_all=''
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# Initialize some variables set by options.
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@ -1523,9 +1536,11 @@ Some influential environment variables:
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LIBS libraries to pass to the linker, e.g. -l<library>
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CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
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you have headers in a nonstandard directory <include dir>
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TEST_CC C compiler for testing
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CPP C preprocessor
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CXX C++ compiler command
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CXXFLAGS C++ compiler flags
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TEST_CXX C++ compiler for testing
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Use these variables to override the choices made by 'configure' or to help
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it to find libraries and programs with nonstandard names/locations.
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@ -3806,6 +3821,10 @@ 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 -z "$TEST_CC"; then
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TEST_CC="$CC"
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fi
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if test $host != $build; then
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for ac_prog in gcc cc
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do
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@ -4280,6 +4299,14 @@ ac_compile='$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 -z "$TEST_CXX"; then
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saved_CXX=
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TEST_CXX="$CXX"
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else
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saved_CXX="$CXX"
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CXX="$TEST_CXX"
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fi
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# It's useless to us if it can't link programs (e.g. missing -lstdc++).
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX can link programs" >&5
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@ -4357,6 +4384,9 @@ if test $libc_cv_cxx_link_ok != yes
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then :
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CXX=
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fi
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if test -n "$saved_CXX"; then
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CXX="$saved_CXX"
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fi
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if test "`cd $srcdir; pwd -P`" = "`pwd -P`"; then
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as_fn_error $? "you must configure in a separate build directory" "$LINENO" 5
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@ -7103,6 +7133,7 @@ printf "%s\n" "$libc_linker_feature" >&6; }
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config_vars="$config_vars
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have-no-dynamic-linker = $libc_cv_no_dynamic_linker"
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -static-pie" >&5
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printf %s "checking for -static-pie... " >&6; }
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if test ${libc_cv_static_pie+y}
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@ -7120,15 +7151,49 @@ then :
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else case e in #(
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e) libc_cv_static_pie=no ;;
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esac
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fi
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;;
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fi ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie" >&5
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printf "%s\n" "$libc_cv_static_pie" >&6; }
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if test "$TEST_CC" = "$CC"; then
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libc_cv_test_static_pie=$libc_cv_static_pie
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else
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saved_CC="$CC"
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CC="$TEST_CC"
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -static-pie in testing" >&5
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printf %s "checking for -static-pie in testing... " >&6; }
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if test ${libc_cv_test_static_pie+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e) if { ac_try='${CC-cc} -static-pie -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then :
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libc_cv_test_static_pie=yes
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else case e in #(
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e) libc_cv_test_static_pie=no
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;;
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esac
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fi ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_static_pie" >&5
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printf "%s\n" "$libc_cv_test_static_pie" >&6; }
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CC="$saved_CC"
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fi
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config_vars="$config_vars
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have-static-pie = $libc_cv_static_pie"
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5
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printf %s "checking for -fpie... " >&6; }
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if test ${libc_cv_fpie+y}
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@ -7190,70 +7255,144 @@ fi
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printf "%s\n" "$libc_cv_has_glob_dat" >&6; }
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conftest_code="
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__thread int i;
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void foo (void)
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{
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i = 10;
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}
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"
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cat > conftest.c <<EOF
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$conftest_code
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EOF
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for tls descriptor support" >&5
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printf %s "checking for tls descriptor support... " >&6; }
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if test ${libc_cv_mtls_descriptor+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e) cat > conftest.c <<EOF
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__thread int i;
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void foo (void)
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{
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i = 10;
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles
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-shared conftest.c -o conftest 1>&5'
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e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared conftest.c -o conftest 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_cv_mtls_descriptor=$mtls_descriptor
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else
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libc_cv_mtls_descriptor=no
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fi
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rm -f conftest* ;;
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then
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libc_cv_mtls_descriptor=$mtls_descriptor
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else
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libc_cv_mtls_descriptor=no
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fi
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;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_descriptor" >&5
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printf "%s\n" "$libc_cv_mtls_descriptor" >&6; }
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if test "$TEST_CC" = "$CC"; then
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libc_cv_test_mtls_descriptor=$libc_cv_mtls_descriptor
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else
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saved_CC="$CC"
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CC="$TEST_CC"
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for tls descriptor support in testing" >&5
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printf %s "checking for tls descriptor support in testing... " >&6; }
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if test ${libc_cv_test_mtls_descriptor+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared conftest.c -o conftest 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_cv_test_mtls_descriptor=$mtls_descriptor
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else
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libc_cv_test_mtls_descriptor=no
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fi ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_mtls_descriptor" >&5
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printf "%s\n" "$libc_cv_test_mtls_descriptor" >&6; }
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CC="$saved_CC"
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fi
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rm -f conftest*
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config_vars="$config_vars
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have-mtls-descriptor = $libc_cv_mtls_descriptor"
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conftest_code="
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void __foo (void)
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{
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}
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extern __typeof (__foo) foo __attribute__ ((weak, alias ("__foo")));
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extern __typeof (__foo) bar __attribute__ ((weak, alias ("foo")));
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"
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cat > conftest.c <<EOF
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$conftest_code
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EOF
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if -Wno-ignored-attributes is required for aliases" >&5
|
||||
printf %s "checking if -Wno-ignored-attributes is required for aliases... " >&6; }
|
||||
if test ${libc_cv_wno_ignored_attributes+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) cat > conftest.c <<EOF
|
||||
void __foo (void)
|
||||
{
|
||||
}
|
||||
extern __typeof (__foo) foo __attribute__ ((weak, alias ("__foo")));
|
||||
extern __typeof (__foo) bar __attribute__ ((weak, alias ("foo")));
|
||||
EOF
|
||||
libc_cv_wno_ignored_attributes=""
|
||||
if ! { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -c conftest.c'
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -Werror -Wno-ignored-attributes conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
libc_cv_wno_ignored_attributes="-Wno-ignored-attributes"
|
||||
fi
|
||||
rm -f conftest* ;;
|
||||
then
|
||||
libc_cv_wno_ignored_attributes="-Wno-ignored-attributes"
|
||||
else
|
||||
libc_cv_wno_ignored_attributes=
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_wno_ignored_attributes" >&5
|
||||
printf "%s\n" "$libc_cv_wno_ignored_attributes" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_wno_ignored_attributes=$libc_cv_wno_ignored_attributes
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if -Wno-ignored-attributes is required for aliases in testing" >&5
|
||||
printf %s "checking if -Wno-ignored-attributes is required for aliases in testing... " >&6; }
|
||||
if test ${libc_cv_test_wno_ignored_attributes+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -Werror -Wno-ignored-attributes conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
libc_cv_test_wno_ignored_attributes="-Wno-ignored-attributes"
|
||||
else
|
||||
libc_cv_test_wno_ignored_attributes=
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_wno_ignored_attributes" >&5
|
||||
printf "%s\n" "$libc_cv_test_wno_ignored_attributes" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
rm -f conftest*
|
||||
config_vars="$config_vars
|
||||
config-cflags-wno-ignored-attributes = $libc_cv_wno_ignored_attributes"
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether cc puts quotes around section names" >&5
|
||||
printf %s "checking whether cc puts quotes around section names... " >&6; }
|
||||
if test ${libc_cv_have_section_quotes+y}
|
||||
@ -7405,6 +7544,7 @@ printf "%s\n" "$libc_cv_cc_submachine" >&6; }
|
||||
fi
|
||||
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for compiler option that -fsignaling-nans" >&5
|
||||
printf %s "checking for compiler option that -fsignaling-nans... " >&6; }
|
||||
if test ${libc_cv_cc_signaling_nans+y}
|
||||
@ -7422,15 +7562,48 @@ then :
|
||||
else case e in #(
|
||||
e) libc_cv_cc_signaling_nans= ;;
|
||||
esac
|
||||
fi
|
||||
;;
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_signaling_nans" >&5
|
||||
printf "%s\n" "$libc_cv_cc_signaling_nans" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_cc_signaling_nans=$libc_cv_cc_signaling_nans
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for compiler option that -fsignaling-nans in testing" >&5
|
||||
printf %s "checking for compiler option that -fsignaling-nans in testing... " >&6; }
|
||||
if test ${libc_cv_test_cc_signaling_nans+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} -Werror -fsignaling-nans -xc /dev/null -S -o /dev/null'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then :
|
||||
libc_cv_test_cc_signaling_nans=-fsignaling-nans
|
||||
else case e in #(
|
||||
e) libc_cv_test_cc_signaling_nans= ;;
|
||||
esac
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_cc_signaling_nans" >&5
|
||||
printf "%s\n" "$libc_cv_test_cc_signaling_nans" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
|
||||
config_vars="$config_vars
|
||||
config-cflags-signaling-nans = $libc_cv_cc_signaling_nans"
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC accepts -fno-tree-loop-distribute-patterns with \
|
||||
__attribute__ ((__optimize__))" >&5
|
||||
printf %s "checking if $CC accepts -fno-tree-loop-distribute-patterns with \
|
||||
@ -7465,6 +7638,7 @@ if test $libc_cv_cc_loop_to_function = yes; then
|
||||
fi
|
||||
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -Wimplicit-fallthrough" >&5
|
||||
printf %s "checking for -Wimplicit-fallthrough... " >&6; }
|
||||
if test ${libc_cv_cc_wimplicit_fallthrough+y}
|
||||
@ -7480,17 +7654,50 @@ else case e in #(
|
||||
then :
|
||||
libc_cv_cc_wimplicit_fallthrough=-Wimplicit-fallthrough
|
||||
else case e in #(
|
||||
e) libc_cv_cc_wimplicit_fallthrough= ;;
|
||||
e) libc_cv_cc_wimplicit_fallthrough=-Wimplicit-fallthrough ;;
|
||||
esac
|
||||
fi
|
||||
;;
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_wimplicit_fallthrough" >&5
|
||||
printf "%s\n" "$libc_cv_cc_wimplicit_fallthrough" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_cc_wimplicit_fallthrough=$libc_cv_cc_wimplicit_fallthrough
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -Wimplicit-fallthrough in testing" >&5
|
||||
printf %s "checking for -Wimplicit-fallthrough in testing... " >&6; }
|
||||
if test ${libc_cv_test_cc_wimplicit_fallthrough+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} -Werror -Wimplicit-fallthrough -xc /dev/null -S -o /dev/null'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then :
|
||||
libc_cv_test_cc_wimplicit_fallthrough=-Wimplicit-fallthrough
|
||||
else case e in #(
|
||||
e) libc_cv_test_cc_wimplicit_fallthrough= ;;
|
||||
esac
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_cc_wimplicit_fallthrough" >&5
|
||||
printf "%s\n" "$libc_cv_test_cc_wimplicit_fallthrough" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
|
||||
config_vars="$config_vars
|
||||
cc-option-wimplicit-fallthrough = $libc_cv_cc_wimplicit_fallthrough"
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libgd" >&5
|
||||
printf %s "checking for libgd... " >&6; }
|
||||
if test "$with_gd" != "no"; then
|
||||
@ -7721,6 +7928,7 @@ fi
|
||||
no_fortify_source="-U_FORTIFY_SOURCE"
|
||||
fortify_source="${no_fortify_source}"
|
||||
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for maximum supported _FORTIFY_SOURCE level" >&5
|
||||
printf %s "checking for maximum supported _FORTIFY_SOURCE level... " >&6; }
|
||||
if test ${libc_cv_supported_fortify_source+y}
|
||||
@ -7728,7 +7936,7 @@ then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e)
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
|
||||
int
|
||||
@ -7753,6 +7961,50 @@ esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_supported_fortify_source" >&5
|
||||
printf "%s\n" "$libc_cv_supported_fortify_source" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_supported_fortify_source=$libc_cv_supported_fortify_source
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for maximum supported _FORTIFY_SOURCE level in testing" >&5
|
||||
printf %s "checking for maximum supported _FORTIFY_SOURCE level in testing... " >&6; }
|
||||
if test ${libc_cv_test_supported_fortify_source+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e)
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
__builtin_dynamic_object_size("", 0)
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"
|
||||
then :
|
||||
libc_cv_test_supported_fortify_source=3
|
||||
else case e in #(
|
||||
e) libc_cv_test_supported_fortify_source=2 ;;
|
||||
esac
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext conftest.beam \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_supported_fortify_source" >&5
|
||||
printf "%s\n" "$libc_cv_test_supported_fortify_source" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
|
||||
|
||||
|
||||
case $enable_fortify_source in #(
|
||||
yes) :
|
||||
@ -8244,6 +8496,11 @@ fi
|
||||
config_vars="$config_vars
|
||||
enable-static-pie = $libc_cv_static_pie"
|
||||
|
||||
# Support configure.ac under sysdeps.
|
||||
|
||||
|
||||
|
||||
|
||||
# Set the `multidir' variable by grabbing the variable from the compiler.
|
||||
# We do it once and save the result in a generated makefile.
|
||||
libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
|
||||
|
||||
125
configure.ac
125
configure.ac
@ -46,6 +46,11 @@ AC_CONFIG_SUBDIRS()
|
||||
AC_CANONICAL_HOST
|
||||
|
||||
AC_PROG_CC
|
||||
AC_ARG_VAR([TEST_CC],
|
||||
[C compiler for testing])
|
||||
if test -z "$TEST_CC"; then
|
||||
TEST_CC="$CC"
|
||||
fi
|
||||
if test $host != $build; then
|
||||
AC_CHECK_PROGS(BUILD_CC, gcc cc)
|
||||
fi
|
||||
@ -70,6 +75,15 @@ AC_ARG_ENABLE([static-c++-link-check],
|
||||
|
||||
# We need the C++ compiler only for testing.
|
||||
AC_PROG_CXX
|
||||
AC_ARG_VAR([TEST_CXX],
|
||||
[C++ compiler for testing])
|
||||
if test -z "$TEST_CXX"; then
|
||||
saved_CXX=
|
||||
TEST_CXX="$CXX"
|
||||
else
|
||||
saved_CXX="$CXX"
|
||||
CXX="$TEST_CXX"
|
||||
fi
|
||||
# It's useless to us if it can't link programs (e.g. missing -lstdc++).
|
||||
AC_CACHE_CHECK([whether $CXX can link programs], libc_cv_cxx_link_ok, [dnl
|
||||
AC_LANG_PUSH([C++])
|
||||
@ -97,6 +111,9 @@ main()
|
||||
fi
|
||||
AC_LANG_POP([C++])])
|
||||
AS_IF([test $libc_cv_cxx_link_ok != yes], [CXX=])
|
||||
if test -n "$saved_CXX"; then
|
||||
CXX="$saved_CXX"
|
||||
fi
|
||||
|
||||
if test "`cd $srcdir; pwd -P`" = "`pwd -P`"; then
|
||||
AC_MSG_ERROR([you must configure in a separate build directory])
|
||||
@ -1278,12 +1295,14 @@ LIBC_LINKER_FEATURE([--no-dynamic-linker],
|
||||
[libc_cv_no_dynamic_linker=no])
|
||||
LIBC_CONFIG_VAR([have-no-dynamic-linker], [$libc_cv_no_dynamic_linker])
|
||||
|
||||
AC_CACHE_CHECK(for -static-pie, libc_cv_static_pie, [dnl
|
||||
LIBC_TRY_CC_OPTION([-static-pie],
|
||||
[libc_cv_static_pie=yes],
|
||||
[libc_cv_static_pie=no])
|
||||
])
|
||||
LIBC_TRY_CC_AND_TEST_CC_OPTION(for -static-pie, [-static-pie],
|
||||
libc_cv_static_pie,
|
||||
[libc_cv_static_pie=yes], [libc_cv_static_pie=no],
|
||||
libc_cv_test_static_pie,
|
||||
[libc_cv_test_static_pie=yes], [libc_cv_test_static_pie=no]
|
||||
)
|
||||
LIBC_CONFIG_VAR([have-static-pie], [$libc_cv_static_pie])
|
||||
AC_SUBST(libc_cv_test_static_pie)
|
||||
|
||||
AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
|
||||
LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
|
||||
@ -1314,46 +1333,48 @@ fi
|
||||
rm -f conftest*])
|
||||
AC_SUBST(libc_cv_has_glob_dat)
|
||||
|
||||
AC_CACHE_CHECK([for tls descriptor support], libc_cv_mtls_descriptor,
|
||||
[dnl
|
||||
cat > conftest.c <<EOF
|
||||
conftest_code="
|
||||
__thread int i;
|
||||
void foo (void)
|
||||
{
|
||||
i = 10;
|
||||
}
|
||||
EOF
|
||||
if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles
|
||||
-shared conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD])
|
||||
then
|
||||
libc_cv_mtls_descriptor=$mtls_descriptor
|
||||
else
|
||||
libc_cv_mtls_descriptor=no
|
||||
fi
|
||||
rm -f conftest*])
|
||||
"
|
||||
LIBC_TRY_CC_AND_TEST_CC_COMMAND([for tls descriptor support],
|
||||
[$conftest_code],
|
||||
[-fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared],
|
||||
libc_cv_mtls_descriptor,
|
||||
[libc_cv_mtls_descriptor=$mtls_descriptor],
|
||||
[libc_cv_mtls_descriptor=no],
|
||||
libc_cv_test_mtls_descriptor,
|
||||
[libc_cv_test_mtls_descriptor=$mtls_descriptor],
|
||||
[libc_cv_test_mtls_descriptor=no])
|
||||
LIBC_CONFIG_VAR([have-mtls-descriptor], [$libc_cv_mtls_descriptor])
|
||||
AC_SUBST(libc_cv_test_mtls_descriptor)
|
||||
|
||||
dnl clang emits an warning for a double alias redirection, to warn the
|
||||
dnl original symbol is sed even when weak definition overrides it.
|
||||
dnl It is a usual pattern for weak_alias, where multiple alias point to
|
||||
dnl same symbol.
|
||||
AC_CACHE_CHECK([if -Wno-ignored-attributes is required for aliases],
|
||||
libc_cv_wno_ignored_attributes, [dnl
|
||||
cat > conftest.c <<EOF
|
||||
conftest_code="
|
||||
void __foo (void)
|
||||
{
|
||||
}
|
||||
extern __typeof (__foo) foo __attribute__ ((weak, alias ("__foo")));
|
||||
extern __typeof (__foo) bar __attribute__ ((weak, alias ("foo")));
|
||||
EOF
|
||||
libc_cv_wno_ignored_attributes=""
|
||||
if ! AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -Werror -c conftest.c])
|
||||
then
|
||||
libc_cv_wno_ignored_attributes="-Wno-ignored-attributes"
|
||||
fi
|
||||
rm -f conftest*])
|
||||
"
|
||||
LIBC_TRY_CC_AND_TEST_CC_COMMAND([if -Wno-ignored-attributes is required for aliases],
|
||||
[$conftest_code],
|
||||
[-c -Werror -Wno-ignored-attributes],
|
||||
libc_cv_wno_ignored_attributes,
|
||||
[libc_cv_wno_ignored_attributes="-Wno-ignored-attributes"],
|
||||
[libc_cv_wno_ignored_attributes=],
|
||||
libc_cv_test_wno_ignored_attributes,
|
||||
[libc_cv_test_wno_ignored_attributes="-Wno-ignored-attributes"],
|
||||
[libc_cv_test_wno_ignored_attributes=])
|
||||
LIBC_CONFIG_VAR([config-cflags-wno-ignored-attributes],
|
||||
[$libc_cv_wno_ignored_attributes])
|
||||
AC_SUBST(libc_cv_test_wno_ignored_attributes)
|
||||
|
||||
AC_CACHE_CHECK(whether cc puts quotes around section names,
|
||||
libc_cv_have_section_quotes,
|
||||
@ -1440,14 +1461,17 @@ fi
|
||||
AC_SUBST(libc_cv_cc_submachine)
|
||||
|
||||
dnl Determine if compiler supports -fsignaling-nans
|
||||
AC_CACHE_CHECK([for compiler option that -fsignaling-nans],
|
||||
libc_cv_cc_signaling_nans, [dnl
|
||||
LIBC_TRY_CC_OPTION([-Werror -fsignaling-nans],
|
||||
[libc_cv_cc_signaling_nans=-fsignaling-nans],
|
||||
[libc_cv_cc_signaling_nans=])
|
||||
])
|
||||
LIBC_TRY_CC_AND_TEST_CC_OPTION([for compiler option that -fsignaling-nans],
|
||||
[-Werror -fsignaling-nans],
|
||||
libc_cv_cc_signaling_nans,
|
||||
[libc_cv_cc_signaling_nans=-fsignaling-nans],
|
||||
[libc_cv_cc_signaling_nans=],
|
||||
libc_cv_test_cc_signaling_nans,
|
||||
[libc_cv_test_cc_signaling_nans=-fsignaling-nans],
|
||||
[libc_cv_test_cc_signaling_nans=])
|
||||
LIBC_CONFIG_VAR([config-cflags-signaling-nans],
|
||||
[$libc_cv_cc_signaling_nans])
|
||||
AC_SUBST(libc_cv_test_cc_signaling_nans)
|
||||
|
||||
AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \
|
||||
__attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl
|
||||
@ -1467,14 +1491,17 @@ if test $libc_cv_cc_loop_to_function = yes; then
|
||||
fi
|
||||
AC_SUBST(libc_cv_cc_loop_to_function)
|
||||
|
||||
AC_CACHE_CHECK([for -Wimplicit-fallthrough],
|
||||
libc_cv_cc_wimplicit_fallthrough, [dnl
|
||||
LIBC_TRY_CC_OPTION([-Werror -Wimplicit-fallthrough],
|
||||
[libc_cv_cc_wimplicit_fallthrough=-Wimplicit-fallthrough],
|
||||
[libc_cv_cc_wimplicit_fallthrough=])
|
||||
])
|
||||
LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wimplicit-fallthrough],
|
||||
[-Werror -Wimplicit-fallthrough],
|
||||
libc_cv_cc_wimplicit_fallthrough,
|
||||
[libc_cv_cc_wimplicit_fallthrough=-Wimplicit-fallthrough],
|
||||
[libc_cv_cc_wimplicit_fallthrough=-Wimplicit-fallthrough],
|
||||
libc_cv_test_cc_wimplicit_fallthrough,
|
||||
[libc_cv_test_cc_wimplicit_fallthrough=-Wimplicit-fallthrough],
|
||||
[libc_cv_test_cc_wimplicit_fallthrough=])
|
||||
LIBC_CONFIG_VAR([cc-option-wimplicit-fallthrough],
|
||||
[$libc_cv_cc_wimplicit_fallthrough])
|
||||
AC_SUBST(libc_cv_test_cc_wimplicit_fallthrough)
|
||||
|
||||
dnl Check whether we have the gd library available.
|
||||
AC_MSG_CHECKING(for libgd)
|
||||
@ -1538,12 +1565,15 @@ dnl support it
|
||||
no_fortify_source="-U_FORTIFY_SOURCE"
|
||||
fortify_source="${no_fortify_source}"
|
||||
|
||||
AC_CACHE_CHECK([for maximum supported _FORTIFY_SOURCE level],
|
||||
[libc_cv_supported_fortify_source], [
|
||||
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_dynamic_object_size("", 0)])],
|
||||
[libc_cv_supported_fortify_source=3],
|
||||
[libc_cv_supported_fortify_source=2])
|
||||
])
|
||||
LIBC_TRY_CC_AND_TEST_LINK([for maximum supported _FORTIFY_SOURCE level],
|
||||
[__builtin_dynamic_object_size("", 0)],
|
||||
libc_cv_supported_fortify_source,
|
||||
[libc_cv_supported_fortify_source=3],
|
||||
[libc_cv_supported_fortify_source=2],
|
||||
libc_cv_test_supported_fortify_source,
|
||||
[libc_cv_test_supported_fortify_source=3],
|
||||
[libc_cv_test_supported_fortify_source=2])
|
||||
AC_SUBST(libc_cv_test_supported_fortify_source)
|
||||
|
||||
AS_CASE([$enable_fortify_source],
|
||||
[yes], [libc_cv_fortify_source=yes enable_fortify_source=$libc_cv_supported_fortify_source],
|
||||
@ -1835,6 +1865,11 @@ if test "$libc_cv_static_pie" = "yes"; then
|
||||
fi
|
||||
LIBC_CONFIG_VAR([enable-static-pie], [$libc_cv_static_pie])
|
||||
|
||||
# Support configure.ac under sysdeps.
|
||||
AC_SUBST(libc_cv_test_cc_mprefer_vector_width)
|
||||
AC_SUBST(test_enable_cet)
|
||||
AC_SUBST(libc_cv_test_x86_have_amx_tile)
|
||||
|
||||
# Set the `multidir' variable by grabbing the variable from the compiler.
|
||||
# We do it once and save the result in a generated makefile.
|
||||
libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
|
||||
|
||||
@ -75,6 +75,15 @@ and @theglibc{} cannot be compiled without optimization, so if
|
||||
$ ../glibc-@var{version}/configure CC="gcc -m32" CFLAGS="-O3"
|
||||
@end smallexample
|
||||
|
||||
To test @theglibc{} with a different C compiler or a different C++
|
||||
compiler, @samp{TEST_CC=@var{compiler}} and
|
||||
@samp{TEST_CXX=@var{compiler}} arguments can be passed to
|
||||
@code{configure}. For example:
|
||||
|
||||
@smallexample
|
||||
$ ../glibc-@var{version}/configure TEST_CC="gcc-6.4.1" TEST_CXX="g++-6.4.1"
|
||||
@end smallexample
|
||||
|
||||
The following list describes all of the available options for
|
||||
@code{configure}:
|
||||
|
||||
|
||||
172
sysdeps/x86_64/configure
vendored
172
sysdeps/x86_64/configure
vendored
@ -1,8 +1,9 @@
|
||||
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
|
||||
# Local configure fragment for sysdeps/x86_64.
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
|
||||
printf %s "checking -mprefer-vector-width=128... " >&6; }
|
||||
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -mprefer-vector-width=128" >&5
|
||||
printf %s "checking for -mprefer-vector-width=128... " >&6; }
|
||||
if test ${libc_cv_cc_mprefer_vector_width+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
@ -18,12 +19,44 @@ then :
|
||||
else case e in #(
|
||||
e) libc_cv_cc_mprefer_vector_width=no ;;
|
||||
esac
|
||||
fi
|
||||
;;
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
|
||||
printf "%s\n" "$libc_cv_cc_mprefer_vector_width" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_cc_mprefer_vector_width=$libc_cv_cc_mprefer_vector_width
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -mprefer-vector-width=128 in testing" >&5
|
||||
printf %s "checking for -mprefer-vector-width=128 in testing... " >&6; }
|
||||
if test ${libc_cv_test_cc_mprefer_vector_width+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} -mprefer-vector-width=128 -xc /dev/null -S -o /dev/null'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then :
|
||||
libc_cv_test_cc_mprefer_vector_width=yes
|
||||
else case e in #(
|
||||
e) libc_cv_test_cc_mprefer_vector_width=no ;;
|
||||
esac
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_cc_mprefer_vector_width" >&5
|
||||
printf "%s\n" "$libc_cv_test_cc_mprefer_vector_width" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
|
||||
config_vars="$config_vars
|
||||
config-cflags-mprefer-vector-width = $libc_cv_cc_mprefer_vector_width"
|
||||
|
||||
@ -66,34 +99,73 @@ if test x"$build_mathvec" = xnotset; then
|
||||
build_mathvec=yes
|
||||
fi
|
||||
|
||||
test_enable_cet=$enable_cet
|
||||
if test $enable_cet != no; then
|
||||
# Check if CET can be enabled.
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
|
||||
conftest_code="
|
||||
#if !defined __CET__ || __CET__ != 3
|
||||
# error CET is not available.
|
||||
#endif
|
||||
"
|
||||
|
||||
cat > conftest.c <<EOF
|
||||
$conftest_code
|
||||
EOF
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
|
||||
printf %s "checking whether CET can be enabled... " >&6; }
|
||||
if test ${libc_cv_x86_cet_available+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) cat > conftest.c <<EOF
|
||||
#if !defined __CET__ || __CET__ != 3
|
||||
# error CET isn't available.
|
||||
#endif
|
||||
EOF
|
||||
if { ac_try='${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&5'
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -fcf-protection -include cet.h conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }; then
|
||||
libc_cv_x86_cet_available=yes
|
||||
else
|
||||
libc_cv_x86_cet_available=no
|
||||
fi
|
||||
rm -rf conftest* ;;
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
libc_cv_x86_cet_available=yes
|
||||
else
|
||||
libc_cv_x86_cet_available=no
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
|
||||
printf "%s\n" "$libc_cv_x86_cet_available" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_x86_cet_available=$libc_cv_x86_cet_available
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled in testing" >&5
|
||||
printf %s "checking whether CET can be enabled in testing... " >&6; }
|
||||
if test ${libc_cv_test_x86_cet_available+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -fcf-protection -include cet.h conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
libc_cv_test_x86_cet_available=yes
|
||||
else
|
||||
libc_cv_test_x86_cet_available=no
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_x86_cet_available" >&5
|
||||
printf "%s\n" "$libc_cv_test_x86_cet_available" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
rm -f conftest*
|
||||
test_enable_cet=$libc_cv_test_x86_cet_available
|
||||
if test $libc_cv_x86_cet_available != yes; then
|
||||
as_fn_error $? "$CC doesn't support CET" "$LINENO" 5
|
||||
fi
|
||||
@ -139,31 +211,75 @@ config_vars="$config_vars
|
||||
enable-cet = $enable_cet"
|
||||
|
||||
# Check if -mamx-tile works properly.
|
||||
check_x86_have_amx_tile ()
|
||||
{
|
||||
eval $1=no
|
||||
if grep -q __builtin_ia32_ldtilecfg conftest; then
|
||||
eval $1=yes
|
||||
fi
|
||||
}
|
||||
|
||||
conftest_code="
|
||||
#include <x86intrin.h>
|
||||
"
|
||||
|
||||
cat > conftest.c <<EOF
|
||||
$conftest_code
|
||||
EOF
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -mamx-tile works properly" >&5
|
||||
printf %s "checking whether -mamx-tile works properly... " >&6; }
|
||||
if test ${libc_cv_x86_have_amx_tile+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) cat > conftest.c <<EOF
|
||||
#include <x86intrin.h>
|
||||
EOF
|
||||
libc_cv_x86_have_amx_tile=no
|
||||
if { ac_try='${CC-cc} -E $CFLAGS -mamx-tile conftest.c > conftest.i'
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -E -mamx-tile conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }; then
|
||||
if grep -q __builtin_ia32_ldtilecfg conftest.i; then
|
||||
libc_cv_x86_have_amx_tile=yes
|
||||
fi
|
||||
fi
|
||||
rm -rf conftest* ;;
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
check_x86_have_amx_tile libc_cv_x86_have_amx_tile
|
||||
else
|
||||
libc_cv_x86_have_amx_tile=no
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_have_amx_tile" >&5
|
||||
printf "%s\n" "$libc_cv_x86_have_amx_tile" >&6; }
|
||||
if test "$TEST_CC" = "$CC"; then
|
||||
libc_cv_test_x86_have_amx_tile=$libc_cv_x86_have_amx_tile
|
||||
else
|
||||
|
||||
saved_CC="$CC"
|
||||
CC="$TEST_CC"
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -mamx-tile works properly in testing" >&5
|
||||
printf %s "checking whether -mamx-tile works properly in testing... " >&6; }
|
||||
if test ${libc_cv_test_x86_have_amx_tile+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -E -mamx-tile conftest.c -o conftest 1>&5'
|
||||
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
|
||||
test $ac_status = 0; }; }
|
||||
then
|
||||
check_x86_have_amx_tile libc_cv_test_x86_have_amx_tile
|
||||
else
|
||||
libc_cv_test_x86_have_amx_tile=no
|
||||
fi ;;
|
||||
esac
|
||||
fi
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_x86_have_amx_tile" >&5
|
||||
printf "%s\n" "$libc_cv_test_x86_have_amx_tile" >&6; }
|
||||
|
||||
CC="$saved_CC"
|
||||
|
||||
fi
|
||||
rm -f conftest*
|
||||
config_vars="$config_vars
|
||||
have-mamx-tile = $libc_cv_x86_have_amx_tile"
|
||||
|
||||
|
||||
@ -2,11 +2,14 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
|
||||
# Local configure fragment for sysdeps/x86_64.
|
||||
|
||||
dnl Check if -mprefer-vector-width=128 works.
|
||||
AC_CACHE_CHECK(-mprefer-vector-width=128, libc_cv_cc_mprefer_vector_width, [dnl
|
||||
LIBC_TRY_CC_OPTION([-mprefer-vector-width=128],
|
||||
[libc_cv_cc_mprefer_vector_width=yes],
|
||||
[libc_cv_cc_mprefer_vector_width=no])
|
||||
])
|
||||
LIBC_TRY_CC_AND_TEST_CC_OPTION([for -mprefer-vector-width=128],
|
||||
[-mprefer-vector-width=128],
|
||||
libc_cv_cc_mprefer_vector_width,
|
||||
[libc_cv_cc_mprefer_vector_width=yes],
|
||||
[libc_cv_cc_mprefer_vector_width=no],
|
||||
libc_cv_test_cc_mprefer_vector_width,
|
||||
[libc_cv_test_cc_mprefer_vector_width=yes],
|
||||
[libc_cv_test_cc_mprefer_vector_width=no])
|
||||
LIBC_CONFIG_VAR([config-cflags-mprefer-vector-width],
|
||||
[$libc_cv_cc_mprefer_vector_width])
|
||||
|
||||
@ -18,21 +21,24 @@ if test x"$build_mathvec" = xnotset; then
|
||||
build_mathvec=yes
|
||||
fi
|
||||
|
||||
test_enable_cet=$enable_cet
|
||||
if test $enable_cet != no; then
|
||||
# Check if CET can be enabled.
|
||||
AC_CACHE_CHECK(whether CET can be enabled,
|
||||
libc_cv_x86_cet_available, [dnl
|
||||
cat > conftest.c <<EOF
|
||||
conftest_code="
|
||||
#if !defined __CET__ || __CET__ != 3
|
||||
# error CET isn't available.
|
||||
# error CET is not available.
|
||||
#endif
|
||||
EOF
|
||||
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&AS_MESSAGE_LOG_FD); then
|
||||
libc_cv_x86_cet_available=yes
|
||||
else
|
||||
libc_cv_x86_cet_available=no
|
||||
fi
|
||||
rm -rf conftest*])
|
||||
"
|
||||
LIBC_TRY_CC_AND_TEST_CC_COMMAND([whether CET can be enabled],
|
||||
[$conftest_code],
|
||||
[-c -fcf-protection -include cet.h],
|
||||
libc_cv_x86_cet_available,
|
||||
[libc_cv_x86_cet_available=yes],
|
||||
[libc_cv_x86_cet_available=no],
|
||||
libc_cv_test_x86_cet_available,
|
||||
[libc_cv_test_x86_cet_available=yes],
|
||||
[libc_cv_test_x86_cet_available=no])
|
||||
test_enable_cet=$libc_cv_test_x86_cet_available
|
||||
if test $libc_cv_x86_cet_available != yes; then
|
||||
AC_MSG_ERROR([$CC doesn't support CET])
|
||||
fi
|
||||
@ -62,18 +68,26 @@ fi
|
||||
LIBC_CONFIG_VAR([enable-cet], [$enable_cet])
|
||||
|
||||
# Check if -mamx-tile works properly.
|
||||
AC_CACHE_CHECK(whether -mamx-tile works properly,
|
||||
libc_cv_x86_have_amx_tile, [dnl
|
||||
cat > conftest.c <<EOF
|
||||
check_x86_have_amx_tile ()
|
||||
{
|
||||
eval $1=no
|
||||
if grep -q __builtin_ia32_ldtilecfg conftest; then
|
||||
eval $1=yes
|
||||
fi
|
||||
}
|
||||
|
||||
conftest_code="
|
||||
#include <x86intrin.h>
|
||||
EOF
|
||||
libc_cv_x86_have_amx_tile=no
|
||||
if AC_TRY_COMMAND(${CC-cc} -E $CFLAGS -mamx-tile conftest.c > conftest.i); then
|
||||
if grep -q __builtin_ia32_ldtilecfg conftest.i; then
|
||||
libc_cv_x86_have_amx_tile=yes
|
||||
fi
|
||||
fi
|
||||
rm -rf conftest*])
|
||||
"
|
||||
LIBC_TRY_CC_AND_TEST_CC_COMMAND([whether -mamx-tile works properly],
|
||||
[$conftest_code],
|
||||
[-E -mamx-tile],
|
||||
libc_cv_x86_have_amx_tile,
|
||||
[check_x86_have_amx_tile libc_cv_x86_have_amx_tile],
|
||||
[libc_cv_x86_have_amx_tile=no],
|
||||
libc_cv_test_x86_have_amx_tile,
|
||||
[check_x86_have_amx_tile libc_cv_test_x86_have_amx_tile],
|
||||
[libc_cv_test_x86_have_amx_tile=no])
|
||||
LIBC_CONFIG_VAR([have-mamx-tile], [$libc_cv_x86_have_amx_tile])
|
||||
|
||||
# Check if -mapxf is enabled.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user