From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19903 invoked by alias); 29 Jul 2013 16:25:14 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 19598 invoked by uid 89); 29 Jul 2013 16:25:11 -0000 X-Spam-SWARE-Status: No, score=-4.7 required=5.0 tests=AWL,BAYES_50,KHOP_THREADED,RCVD_IN_HOSTKARMA_W,RCVD_IN_HOSTKARMA_WL,RDNS_NONE,SPF_HELO_PASS,SPF_PASS autolearn=no version=3.3.1 Received: from Unknown (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Mon, 29 Jul 2013 16:24:44 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r6TGOad9009982 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 29 Jul 2013 12:24:36 -0400 Received: from barimba.redhat.com (ovpn-113-128.phx2.redhat.com [10.3.113.128]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r6TGOXH2016555; Mon, 29 Jul 2013 12:24:35 -0400 From: Tom Tromey To: gcc-patches@gcc.gnu.org Cc: Tom Tromey Subject: [PATCH v2 04/18] add configury Date: Mon, 29 Jul 2013 16:25:00 -0000 Message-Id: <1375115069-31143-5-git-send-email-tromey@redhat.com> In-Reply-To: <1375115069-31143-1-git-send-email-tromey@redhat.com> References: <1375115069-31143-1-git-send-email-tromey@redhat.com> X-SW-Source: 2013-07/txt/msg01396.txt.bz2 This adds the configury needed for automatic dependency tracking. It also adds some bits to the Makefile so we can begin converting (removing) explicit dependencies. * Makefile.in (CCDEPMODE, DEPDIR, depcomp, COMPILE.base) (COMPILE, POSTCOMPILE): New variables. (.cc.o .c.o): Use COMPILE, POSTCOMPILE. (DEPFILES): New variable. Include ".Po" files. * configure.ac: Add checks for dependency checking. * configure, aclocal.m4: Regenerate. --- gcc/Makefile.in | 28 ++++++++++- gcc/aclocal.m4 | 2 + gcc/configure | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- gcc/configure.ac | 16 ++++++ 4 files changed, 191 insertions(+), 3 deletions(-) diff --git a/gcc/Makefile.in b/gcc/Makefile.in index 6ba2e93..c663c81 100644 --- a/gcc/Makefile.in +++ b/gcc/Makefile.in @@ -308,6 +308,11 @@ write_entries_to_file = $(shell rm -f $(2) || :) $(shell touch $(2)) \ # UNSORTED # -------- +# Dependency tracking stuff. +CCDEPMODE = @CCDEPMODE@ +DEPDIR = @DEPDIR@ +depcomp = $(SHELL) $(srcdir)/../depcomp + # Some compilers can't handle cc -c blah.c -o foo/blah.o. # In stage2 and beyond, we force this to "-o $@" since we know we're using gcc. OUTPUT_OPTION = @OUTPUT_OPTION@ @@ -1067,8 +1072,19 @@ INCLUDES = -I. -I$(@D) -I$(srcdir) -I$(srcdir)/$(@D) \ $(CPPINC) $(GMPINC) $(DECNUMINC) $(BACKTRACEINC) \ $(CLOOGINC) $(ISLINC) +COMPILE.base = $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) -o $@ +ifeq ($(CCDEPMODE),depmode=gcc3) +COMPILE = $(COMPILE.base) -MT $@ -MMD -MP -MF $(*D)/$(DEPDIR)/$(*F).TPo +POSTCOMPILE = @mv $(*D)/$(DEPDIR)/$(*F).TPo $(*D)/$(DEPDIR)/$(*F).Po +else +COMPILE = source='$<' object='$@' libtool=no \ + DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) $(COMPILE.base) +POSTCOMPILE = +endif + .cc.o .c.o: - $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $< $(OUTPUT_OPTION) + $(COMPILE) $< + $(POSTCOMPILE) # # Support for additional languages (other than C). @@ -5354,7 +5370,17 @@ po/gcc.pot: force AWK=$(AWK) $(SHELL) $(srcdir)/po/exgettext \ $(XGETTEXT) gcc $(srcdir) +# + +# Dependency information. + # In order for parallel make to really start compiling the expensive # objects from $(OBJS) as early as possible, build all their # prerequisites strictly before all objects. $(ALL_HOST_OBJS) : | $(generated_files) + +# Include the auto-generated dependencies for all host objects. +DEPFILES = \ + $(foreach obj,$(ALL_HOST_OBJS),\ + $(dir $(obj))$(DEPDIR)/$(patsubst %.o,%.Po,$(notdir $(obj)))) +-include $(DEPFILES) diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index a992c3a..1bcf905 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -106,10 +106,12 @@ m4_include([../ltversion.m4]) m4_include([../lt~obsolete.m4]) m4_include([../config/acx.m4]) m4_include([../config/codeset.m4]) +m4_include([../config/depstand.m4]) m4_include([../config/dfp.m4]) m4_include([../config/gettext-sister.m4]) m4_include([../config/iconv.m4]) m4_include([../config/lcmessage.m4]) +m4_include([../config/lead-dot.m4]) m4_include([../config/lib-ld.m4]) m4_include([../config/lib-link.m4]) m4_include([../config/lib-prefix.m4]) diff --git a/gcc/configure b/gcc/configure index 0d6ddaa..e09cd52 100755 --- a/gcc/configure +++ b/gcc/configure @@ -735,6 +735,9 @@ LDEXP_LIB EXTRA_GCC_LIBS GNAT_LIBEXC COLLECT2_LIBS +CCDEPMODE +DEPDIR +am__leading_dot CXXCPP AR NM @@ -8873,6 +8876,136 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu # -------- +# Dependency checking. +# -------- + +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + +rm -rf .tst 2>/dev/null +mkdir .tst 2>/dev/null +if test -d .tst; then + am__leading_dot=. +else + am__leading_dot=_ +fi +rmdir .tst 2>/dev/null + +DEPDIR="${am__leading_dot}deps" + +ac_config_commands="$ac_config_commands depdir" + + +ac_config_commands="$ac_config_commands gccdepdir" + + +depcc="$CC" am_compiler_list= + +am_depcomp=$ac_aux_dir/depcomp +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5 +$as_echo_n "checking dependency style of $depcc... " >&6; } +if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if test -f "$am_depcomp"; then + # We make a subdir and do the tests there. Otherwise we can end up + # making bogus files that we don't know about and never remove. For + # instance it was reported that on HP-UX the gcc test will end up + # making a dummy file named `D' -- because `-MD' means `put the output + # in D'. + mkdir conftest.dir + # Copy depcomp to subdir because otherwise we won't find it if we're + # using a relative directory. + cp "$am_depcomp" conftest.dir + cd conftest.dir + # We will build objects and dependencies in a subdirectory because + # it helps to detect inapplicable dependency modes. For instance + # both Tru64's cc and ICC support -MD to output dependencies as a + # side effect of compilation, but ICC will put the dependencies in + # the current directory while Tru64 will put them in the object + # directory. + mkdir sub + + am_cv_CC_dependencies_compiler_type=none + if test "$am_compiler_list" = ""; then + am_compiler_list=`sed -n 's/^\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp` + fi + for depmode in $am_compiler_list; do + if test $depmode = none; then break; fi + + $as_echo "$as_me:$LINENO: trying $depmode" >&5 + # Setup a source with many dependencies, because some compilers + # like to wrap large dependency lists on column 80 (with \), and + # we should not choose a depcomp mode which is confused by this. + # + # We need to recreate these files for each test, as the compiler may + # overwrite some of them when testing with obscure command lines. + # This happens at least with the AIX C compiler. + : > sub/conftest.c + for i in 1 2 3 4 5 6; do + echo '#include "conftst'$i'.h"' >> sub/conftest.c + # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with + # Solaris 8's {/usr,}/bin/sh. + touch sub/conftst$i.h + done + echo "include sub/conftest.Po" > confmf + + # We check with `-c' and `-o' for the sake of the "dashmstdout" + # mode. It turns out that the SunPro C++ compiler does not properly + # handle `-M -o', and we need to detect this. + depcmd="depmode=$depmode \ + source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \ + depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \ + $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c" + echo "| $depcmd" | sed -e 's/ */ /g' >&5 + if env $depcmd > conftest.err 2>&1 && + grep sub/conftst6.h sub/conftest.Po >>conftest.err 2>&1 && + grep sub/conftest.${OBJEXT-o} sub/conftest.Po >>conftest.err 2>&1 && + ${MAKE-make} -s -f confmf >>conftest.err 2>&1; then + # icc doesn't choke on unknown options, it will just issue warnings + # or remarks (even with -Werror). So we grep stderr for any message + # that says an option was ignored or not supported. + # When given -MP, icc 7.0 and 7.1 complain thusly: + # icc: Command line warning: ignoring option '-M'; no argument required + # The diagnosis changed in icc 8.0: + # icc: Command line remark: option '-MP' not supported + if (grep 'ignoring option' conftest.err || + grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else + am_cv_CC_dependencies_compiler_type=$depmode + $as_echo "$as_me:$LINENO: success" >&5 + break + fi + fi + $as_echo "$as_me:$LINENO: failure, diagnostics are:" >&5 + sed -e 's/^/| /' < conftest.err >&5 + done + + cd .. + rm -rf conftest.dir +else + am_cv_CC_dependencies_compiler_type=none +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5 +$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; } +if test x${am_cv_CC_dependencies_compiler_type-none} = xnone +then as_fn_error "no usable dependency style found" "$LINENO" 5 +else CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# -------- # UNSORTED # -------- @@ -17894,7 +18027,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17897 "configure" +#line 18030 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -18000,7 +18133,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 18003 "configure" +#line 18136 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -28389,6 +28522,8 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 # # INIT-COMMANDS # +ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR +subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR subdirs='$subdirs' _ACEOF @@ -28400,6 +28535,8 @@ for ac_config_target in $ac_config_targets do case $ac_config_target in "auto-host.h") CONFIG_HEADERS="$CONFIG_HEADERS auto-host.h:config.in" ;; + "depdir") CONFIG_COMMANDS="$CONFIG_COMMANDS depdir" ;; + "gccdepdir") CONFIG_COMMANDS="$CONFIG_COMMANDS gccdepdir" ;; "as") CONFIG_FILES="$CONFIG_FILES as:exec-tool.in" ;; "collect-ld") CONFIG_FILES="$CONFIG_FILES collect-ld:exec-tool.in" ;; "nm") CONFIG_FILES="$CONFIG_FILES nm:exec-tool.in" ;; @@ -28983,6 +29120,13 @@ $as_echo "$as_me: executing $ac_file commands" >&6;} case $ac_file$ac_mode in + "depdir":C) $SHELL $ac_aux_dir/mkinstalldirs $DEPDIR ;; + "gccdepdir":C) + ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR + for lang in $subdirs c-family common + do + ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR + done ;; "as":F) chmod +x as ;; "collect-ld":F) chmod +x collect-ld ;; "nm":F) chmod +x nm ;; diff --git a/gcc/configure.ac b/gcc/configure.ac index b279373..9533902 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -972,6 +972,22 @@ AC_CHECK_HEADERS(ext/hash_map) AC_LANG_POP(C++) # -------- +# Dependency checking. +# -------- + +AC_LANG_PUSH(C++) +ZW_CREATE_DEPDIR +AC_CONFIG_COMMANDS([gccdepdir],[ + ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR + for lang in $subdirs c-family common + do + ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR + done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) + +ZW_PROG_COMPILER_DEPENDENCIES([CC]) +AC_LANG_POP(C++) + +# -------- # UNSORTED # -------- -- 1.8.1.4