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re PR bootstrap/25670 (build fail with 'make all-gcc') 

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/25670

	* Makefile.tpl ([+compare-target+]): Print explanation messages.

	* Makefile.def (ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES): New flags_to_pass.
	* Makefile.tpl (BASE_FLAGS_TO_PASS): Support optional flags_to_pass.
	(EXTRA_GCC_FLAGS): Remove ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES,
	BUILD_PREFIX, BUILD_PREFIX_1.
	* configure.in: (BUILD_PREFIX, BUILD_PREFIX_1): Don't substitute.

	* Makefile.def (bootstrap stage 1): Pass LIBCFLAGS too.
	* Makefile.tpl (POSTSTAGE1_FLAGS_TO_PASS): Override LIBCFLAGS too.

	* Makefile.tpl (configure-stage[+id+]-[+prefix+][+module+],
	all-stage[+id+]-[+prefix+][+module+], : Use $(current_stage) instead
	of `cat stage_current`.  Always provide the `r' and `s' variables.
	(clean-stage[+id+]-[+prefix+][+module+]): Likewise, and make it into
	a single shell execution.
	(configure-[+prefix+][+module+], all-[+prefix+][+module+]): For
	bootstrapped modules, make the stage1 module if the build was not
	started yet, else build the current stage.
	(all-host, all-target): Omit bootstrapped modules (if bootstrapping).
	(all-build, all-host, all-target, [+make_target+]-host,
	[+make_target+]-target): Do not use \-continued lines.
	(target modules): Depend on stage_last, not all-gcc, if bootstrapping.
	(current_stage, restrap, stage_last): New.

	* Makefile.in: Regenerate.
	* configure: Regenerate.

gcc:
2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/25476

	* Makefile.in (LDFLAGS): Define from autoconf substitution.

	* Makefile.in (BOOTSTRAPPING): New.
	(quickstrap): New definition if BOOTSTRAPPING=yes.

	* Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
	* configure.ac: Substitute all_selected_languages with the languages
	that were configured.  For all the other variables except
	lang_specs_files, include all the languages in the tree.
	* configure: Regenerate.
	
	* Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
	if there is one.  Run the commands to run fixincludes in the same
	subshell.

	* doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
	* doc/install.texi: Document exact conventions for searching target tools.
	Document --with-build-time-tools.  Document toplevel bootstrap.  Document
	something more about building an Ada cross-compiler.  Don't list GNU Make
	requirements which affect all platforms.

From-SVN: r111295
This commit is contained in:
Paolo Bonzini 2006-02-20 08:29:17 +00:00 committed by Paolo Bonzini
parent 6a34c78895
commit cc11cc9b0f
12 changed files with 2566 additions and 2154 deletions
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32
ChangeLog
View File

@ -1,3 +1,35 @@
2006-02-20 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/25670
* Makefile.tpl ([+compare-target+]): Print explanation messages.
* Makefile.def (ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES): New flags_to_pass.
* Makefile.tpl (BASE_FLAGS_TO_PASS): Support optional flags_to_pass.
(EXTRA_GCC_FLAGS): Remove ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES,
BUILD_PREFIX, BUILD_PREFIX_1.
* configure.in: (BUILD_PREFIX, BUILD_PREFIX_1): Don't substitute.
* Makefile.def (bootstrap stage 1): Pass LIBCFLAGS too.
* Makefile.tpl (POSTSTAGE1_FLAGS_TO_PASS): Override LIBCFLAGS too.
* Makefile.tpl (configure-stage[+id+]-[+prefix+][+module+],
all-stage[+id+]-[+prefix+][+module+], : Use $(current_stage) instead
of `cat stage_current`. Always provide the `r' and `s' variables.
(clean-stage[+id+]-[+prefix+][+module+]): Likewise, and make it into
a single shell execution.
(configure-[+prefix+][+module+], all-[+prefix+][+module+]): For
bootstrapped modules, make the stage1 module if the build was not
started yet, else build the current stage.
(all-host, all-target): Omit bootstrapped modules (if bootstrapping).
(all-build, all-host, all-target, [+make_target+]-host,
[+make_target+]-target): Do not use \-continued lines.
(target modules): Depend on stage_last, not all-gcc, if bootstrapping.
(current_stage, restrap, stage_last): New.
* Makefile.in: Regenerate.
* configure: Regenerate.
2006-02-19 Bud Davis <jmdavis@link.com> 2006-02-19 Bud Davis <jmdavis@link.com>
* MAINTAINERS (Write After Approval): Remove myself. * MAINTAINERS (Write After Approval): Remove myself.

5
Makefile.def
View File

@ -207,7 +207,9 @@ flags_to_pass = { flag= SHELL ; };
flags_to_pass = { flag= YACC ; }; flags_to_pass = { flag= YACC ; };
// Host tools // Host tools
flags_to_pass = { flag= ADAFLAGS ; optional=true ; };
flags_to_pass = { flag= AR_FLAGS ; }; flags_to_pass = { flag= AR_FLAGS ; };
flags_to_pass = { flag= BOOT_ADAFLAGS ; optional=true ; };
flags_to_pass = { flag= BOOT_CFLAGS ; }; flags_to_pass = { flag= BOOT_CFLAGS ; };
flags_to_pass = { flag= BOOT_LDFLAGS ; }; flags_to_pass = { flag= BOOT_LDFLAGS ; };
flags_to_pass = { flag= CFLAGS ; }; flags_to_pass = { flag= CFLAGS ; };
@ -241,6 +243,7 @@ flags_to_pass = { flag= STRIP_FOR_TARGET ; };
flags_to_pass = { flag= WINDRES_FOR_TARGET ; }; flags_to_pass = { flag= WINDRES_FOR_TARGET ; };
// Miscellaneous // Miscellaneous
flags_to_pass = { flag= LANGUAGES ; optional=true ; };
flags_to_pass = { flag= LEAN ; }; flags_to_pass = { flag= LEAN ; };
// Inter-module dependencies // Inter-module dependencies
@ -461,7 +464,7 @@ bootstrap_stage = {
id=1 ; id=1 ;
stage_configure_flags='--disable-intermodule \ stage_configure_flags='--disable-intermodule \
--disable-coverage --enable-languages="$(STAGE1_LANGUAGES)"' ; --disable-coverage --enable-languages="$(STAGE1_LANGUAGES)"' ;
stage_make_flags='CFLAGS="$(STAGE1_CFLAGS)"' ; }; stage_make_flags='CFLAGS="$(STAGE1_CFLAGS)" LIBCFLAGS="$(STAGE1_CFLAGS)"' ; };
bootstrap_stage = { bootstrap_stage = {
id=2 ; prev=1 ; id=2 ; prev=1 ;
bootstrap_target=bootstrap2 ; bootstrap_target=bootstrap2 ;

3396
Makefile.in
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135
Makefile.tpl
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@ -389,8 +389,9 @@ HOST_LIB_PATH_[+module+] = \
[+ ENDIF lib_path +][+ ENDFOR host_modules +] [+ ENDIF lib_path +][+ ENDFOR host_modules +]
# Flags to pass down to all sub-makes. # Flags to pass down to all sub-makes.
BASE_FLAGS_TO_PASS = [+ FOR flags_to_pass +]\ BASE_FLAGS_TO_PASS =[+ FOR flags_to_pass +][+ IF optional +] \
"[+flag+]=$([+flag+])" [+ ENDFOR flags_to_pass +]\ "`echo '[+flag+]=$([+flag+])' | sed -e s'/[^=][^=]*=$$/XFOO=/'`"[+ ELSE optional +] \
"[+flag+]=$([+flag+])"[+ ENDIF optional+][+ ENDFOR flags_to_pass +] \
"CONFIG_SHELL=$(SHELL)" \ "CONFIG_SHELL=$(SHELL)" \
"MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)"
@ -457,16 +458,12 @@ TARGET_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_TARGET_FLAGS)
# The BUILD_* variables are a special case, which are used for the gcc # The BUILD_* variables are a special case, which are used for the gcc
# cross-building scheme. # cross-building scheme.
EXTRA_GCC_FLAGS = \ EXTRA_GCC_FLAGS = \
'BUILD_PREFIX=$(BUILD_PREFIX)' \
'BUILD_PREFIX_1=$(BUILD_PREFIX_1)' \
"GCC_FOR_TARGET=$(GCC_FOR_TARGET)" \ "GCC_FOR_TARGET=$(GCC_FOR_TARGET)" \
"`echo 'LANGUAGES=$(LANGUAGES)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \
"`echo 'STMP_FIXPROTO=$(STMP_FIXPROTO)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \ "`echo 'STMP_FIXPROTO=$(STMP_FIXPROTO)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \
"`echo 'LIMITS_H_TEST=$(LIMITS_H_TEST)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \ "`echo 'LIMITS_H_TEST=$(LIMITS_H_TEST)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \
"`echo 'LIBGCC2_CFLAGS=$(LIBGCC2_CFLAGS)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \ "`echo 'LIBGCC2_CFLAGS=$(LIBGCC2_CFLAGS)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \
"`echo 'LIBGCC2_DEBUG_CFLAGS=$(LIBGCC2_DEBUG_CFLAGS)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \ "`echo 'LIBGCC2_DEBUG_CFLAGS=$(LIBGCC2_DEBUG_CFLAGS)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \
"`echo 'LIBGCC2_INCLUDES=$(LIBGCC2_INCLUDES)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`" \ "`echo 'LIBGCC2_INCLUDES=$(LIBGCC2_INCLUDES)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`"
"`echo 'BOOT_ADAFLAGS=$(BOOT_ADAFLAGS)' | sed -e s'/[^=][^=]*=$$/XFOO=/'`"
GCC_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_HOST_FLAGS) $(EXTRA_GCC_FLAGS) GCC_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_HOST_FLAGS) $(EXTRA_GCC_FLAGS)
@ -500,20 +497,20 @@ all:
fi fi
.PHONY: all-build .PHONY: all-build
all-build: [+ [+ FOR build_modules +]
FOR build_modules +] \ all-build: maybe-all-build-[+module+][+ ENDFOR build_modules +]
maybe-all-build-[+module+][+
ENDFOR build_modules +]
.PHONY: all-host .PHONY: all-host
all-host: [+ [+ FOR host_modules +][+ IF bootstrap +]
FOR host_modules +] \ @if [+module+]-no-bootstrap[+ ENDIF bootstrap +]
maybe-all-[+module+][+ all-host: maybe-all-[+module+][+ IF bootstrap +]
ENDFOR host_modules +] @endif [+module+]-no-bootstrap[+ ENDIF bootstrap +][+ ENDFOR host_modules +]
.PHONY: all-target .PHONY: all-target
all-target: [+ [+ FOR target_modules +][+ IF bootstrap +]
FOR target_modules +] \ @if [+module+]-no-bootstrap[+ ENDIF bootstrap +]
maybe-all-target-[+module+][+ all-target: maybe-all-target-[+module+][+ IF bootstrap +]
ENDFOR target_modules +] @endif [+module+]-no-bootstrap[+ ENDIF bootstrap +][+ ENDFOR target_modules +]
# Do a target for all the subdirectories. A ``make do-X'' will do a # Do a target for all the subdirectories. A ``make do-X'' will do a
# ``make X'' in all subdirectories (because, in general, there is a # ``make X'' in all subdirectories (because, in general, there is a
@ -530,16 +527,12 @@ do-[+make_target+]:
.PHONY: [+make_target+]-host .PHONY: [+make_target+]-host
[+make_target+]-host: [+ [+ FOR host_modules +]
FOR host_modules +] \ [+make_target+]-host: maybe-[+make_target+]-[+module+][+ ENDFOR host_modules +]
maybe-[+make_target+]-[+module+][+
ENDFOR host_modules +]
.PHONY: [+make_target+]-target .PHONY: [+make_target+]-target
[+make_target+]-target: [+ [+ FOR target_modules +]
FOR target_modules +] \ [+make_target+]-target: maybe-[+make_target+]-target-[+module+][+ ENDFOR target_modules +]
maybe-[+make_target+]-target-[+module+][+
ENDFOR target_modules +]
[+ ENDFOR recursive_targets +] [+ ENDFOR recursive_targets +]
# Here are the targets which correspond to the do-X targets. # Here are the targets which correspond to the do-X targets.
@ -729,13 +722,17 @@ TAGS: do-TAGS
maybe-configure-[+prefix+][+module+]: maybe-configure-[+prefix+][+module+]:
@if [+prefix+][+module+] @if [+prefix+][+module+]
maybe-configure-[+prefix+][+module+]: configure-[+prefix+][+module+] maybe-configure-[+prefix+][+module+]: configure-[+prefix+][+module+]
configure-[+prefix+][+module+]: configure-[+prefix+][+module+]: [+ IF bootstrap +]
@[+ IF bootstrap +]test -f stage_last && exit 0; \ @endif [+prefix+][+module+]
[+ ELSE bootstrap +]: $(MAKE); $(unstage) @if [+prefix+][+module+]-bootstrap
@[+ ENDIF bootstrap +][+ IF check_multilibs @if test -f stage_last; then $(unstage); else $(MAKE) stage1-start; fi
+]r=`${PWD_COMMAND}`; export r; \ @endif [+prefix+][+module+]-bootstrap
@if [+prefix+][+module+][+ ELSE bootstrap +]
@: $(MAKE); $(unstage)[+ ENDIF bootstrap +]
@r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
echo "Checking multilib configuration for [+module+]..."; \ [+ IF check_multilibs
+]echo "Checking multilib configuration for [+module+]..."; \
$(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] ; \ $(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] ; \
$(CC_FOR_TARGET) --print-multi-lib > [+subdir+]/[+module+]/multilib.tmp 2> /dev/null ; \ $(CC_FOR_TARGET) --print-multi-lib > [+subdir+]/[+module+]/multilib.tmp 2> /dev/null ; \
if test -r [+subdir+]/[+module+]/multilib.out; then \ if test -r [+subdir+]/[+module+]/multilib.out; then \
@ -747,11 +744,9 @@ configure-[+prefix+][+module+]:
fi; \ fi; \
else \ else \
mv [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; \ mv [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; \
fi fi; \
@[+ ENDIF check_multilibs +]test ! -f [+subdir+]/[+module+]/Makefile || exit 0; \ [+ ENDIF check_multilibs +]test ! -f [+subdir+]/[+module+]/Makefile || exit 0; \
$(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] ; \ $(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] ; \
r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
[+exports+] \ [+exports+] \
echo Configuring in [+subdir+]/[+module+]; \ echo Configuring in [+subdir+]/[+module+]; \
cd "[+subdir+]/[+module+]" || exit 1; \ cd "[+subdir+]/[+module+]" || exit 1; \
@ -775,12 +770,12 @@ maybe-configure-stage[+id+]-[+prefix+][+module+]:
@if [+prefix+][+module+]-bootstrap @if [+prefix+][+module+]-bootstrap
maybe-configure-stage[+id+]-[+prefix+][+module+]: configure-stage[+id+]-[+prefix+][+module+] maybe-configure-stage[+id+]-[+prefix+][+module+]: configure-stage[+id+]-[+prefix+][+module+]
configure-stage[+id+]-[+prefix+][+module+]: configure-stage[+id+]-[+prefix+][+module+]:
@[ `cat stage_current` = stage[+id+] ] || $(MAKE) stage[+id+]-start @[ $(current_stage) = stage[+id+] ] || $(MAKE) stage[+id+]-start
@$(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+] @$(SHELL) $(srcdir)/mkinstalldirs [+subdir+]/[+module+]
[+ IF check_multilibs @r=`${PWD_COMMAND}`; export r; \
+]@r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
echo "Checking multilib configuration for [+module+]..."; \ [+ IF check_multilibs
+]echo "Checking multilib configuration for [+module+]..."; \
$(CC_FOR_TARGET) --print-multi-lib > [+subdir+]/[+module+]/multilib.tmp 2> /dev/null ; \ $(CC_FOR_TARGET) --print-multi-lib > [+subdir+]/[+module+]/multilib.tmp 2> /dev/null ; \
if test -r [+subdir+]/[+module+]/multilib.out; then \ if test -r [+subdir+]/[+module+]/multilib.out; then \
if cmp -s [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; then \ if cmp -s [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; then \
@ -791,8 +786,8 @@ configure-stage[+id+]-[+prefix+][+module+]:
fi; \ fi; \
else \ else \
mv [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; \ mv [+subdir+]/[+module+]/multilib.tmp [+subdir+]/[+module+]/multilib.out; \
fi fi; \
@[+ ENDIF check_multilibs +]test ! -f [+subdir+]/[+module+]/Makefile || exit 0; \ [+ ENDIF check_multilibs +]test ! -f [+subdir+]/[+module+]/Makefile || exit 0; \
[+exports+][+ IF prev +] \ [+exports+][+ IF prev +] \
[+poststage1_exports+][+ ENDIF prev +] \ [+poststage1_exports+][+ ENDIF prev +] \
echo Configuring stage [+id+] in [+subdir+]/[+module+] ; \ echo Configuring stage [+id+] in [+subdir+]/[+module+] ; \
@ -820,10 +815,14 @@ maybe-all-[+prefix+][+module+]:
TARGET-[+prefix+][+module+]=[+ TARGET-[+prefix+][+module+]=[+
IF target +][+target+][+ ELSE +]all[+ ENDIF target +] IF target +][+target+][+ ELSE +]all[+ ENDIF target +]
maybe-all-[+prefix+][+module+]: all-[+prefix+][+module+] maybe-all-[+prefix+][+module+]: all-[+prefix+][+module+]
all-[+prefix+][+module+]: configure-[+prefix+][+module+] all-[+prefix+][+module+]: configure-[+prefix+][+module+][+ IF bootstrap +]
@[+ IF bootstrap +]test -f stage_last && exit 0; \ @endif [+prefix+][+module+]
[+ ELSE bootstrap +]: $(MAKE); $(unstage) @if [+prefix+][+module+]-bootstrap
@[+ ENDIF bootstrap +]r=`${PWD_COMMAND}`; export r; \ @if test -f stage_last; then $(unstage); else $(MAKE) stage1-start; fi
@endif [+prefix+][+module+]-bootstrap
@if [+prefix+][+module+][+ ELSE bootstrap +]
@: $(MAKE); $(unstage)[+ ENDIF bootstrap +]
@r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
[+exports+] \ [+exports+] \
(cd [+subdir+]/[+module+] && \ (cd [+subdir+]/[+module+] && \
@ -841,7 +840,7 @@ maybe-all-stage[+id+]-[+prefix+][+module+]: all-stage[+id+]-[+prefix+][+module+]
all-stage[+id+]: all-stage[+id+]-[+prefix+][+module+] all-stage[+id+]: all-stage[+id+]-[+prefix+][+module+]
TARGET-stage[+id+]-[+prefix+][+module+] = $(TARGET-[+prefix+][+module+]) TARGET-stage[+id+]-[+prefix+][+module+] = $(TARGET-[+prefix+][+module+])
all-stage[+id+]-[+prefix+][+module+]: configure-stage[+id+]-[+prefix+][+module+] all-stage[+id+]-[+prefix+][+module+]: configure-stage[+id+]-[+prefix+][+module+]
@[ `cat stage_current` = stage[+id+] ] || $(MAKE) stage[+id+]-start @[ $(current_stage) = stage[+id+] ] || $(MAKE) stage[+id+]-start
@r=`${PWD_COMMAND}`; export r; \ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \ s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
[+exports+][+ IF prev +] \ [+exports+][+ IF prev +] \
@ -857,7 +856,7 @@ clean-stage[+id+]: clean-stage[+id+]-[+prefix+][+module+]
clean-stage[+id+]-[+prefix+][+module+]: clean-stage[+id+]-[+prefix+][+module+]:
@[ -f [+subdir+]/[+module+]/Makefile ] || [ -f [+subdir+]/stage[+id+]-[+module+]/Makefile ] \ @[ -f [+subdir+]/[+module+]/Makefile ] || [ -f [+subdir+]/stage[+id+]-[+module+]/Makefile ] \
|| exit 0 ; \ || exit 0 ; \
[ `cat stage_current` = stage[+id+] ] || $(MAKE) stage[+id+]-start [ $(current_stage) = stage[+id+] ] || $(MAKE) stage[+id+]-start; \
cd [+subdir+]/[+module+] && \ cd [+subdir+]/[+module+] && \
$(MAKE) [+args+] [+ IF prev +] \ $(MAKE) [+args+] [+ IF prev +] \
[+poststage1_args+] [+ ENDIF prev +] \ [+poststage1_args+] [+ ENDIF prev +] \
@ -1210,10 +1209,12 @@ gcc-no-fixedincludes:
unstage = : unstage = :
stage = : stage = :
current_stage = ""
@if gcc-bootstrap @if gcc-bootstrap
unstage = [ -f stage_current ] || $(MAKE) `cat stage_last`-start unstage = [ -f stage_current ] || $(MAKE) `cat stage_last`-start
stage = if [ -f stage_current ]; then $(MAKE) `cat stage_current`-end || exit 1; else :; fi stage = if [ -f stage_current ]; then $(MAKE) `cat stage_current`-end || exit 1; else :; fi
current_stage = "`cat stage_current 2> /dev/null`"
@endif gcc-bootstrap @endif gcc-bootstrap
.PHONY: unstage stage .PHONY: unstage stage
@ -1256,6 +1257,7 @@ POSTSTAGE1_FLAGS_TO_PASS = \
CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \ CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
STAGE_PREFIX=$$r/prev-gcc/ \ STAGE_PREFIX=$$r/prev-gcc/ \
CFLAGS="$(BOOT_CFLAGS)" \ CFLAGS="$(BOOT_CFLAGS)" \
LIBCFLAGS="$(BOOT_CFLAGS)" \
LDFLAGS="$(BOOT_LDFLAGS)" \ LDFLAGS="$(BOOT_LDFLAGS)" \
ADAC="\$$(CC)" ADAC="\$$(CC)"
@ -1337,6 +1339,7 @@ do-clean: clean-stage[+id+]
fi; \ fi; \
: $(MAKE); $(stage); \ : $(MAKE); $(stage); \
rm -f .bad_compare ; \ rm -f .bad_compare ; \
echo Comparing stages [+prev+] and [+id+] ; \
cd stage[+id+]-gcc; \ cd stage[+id+]-gcc; \
files=`find . -name "*$(objext)" -print` ; \ files=`find . -name "*$(objext)" -print` ; \
cd .. ; \ cd .. ; \
@ -1357,7 +1360,7 @@ do-clean: clean-stage[+id+]
cat .bad_compare; \ cat .bad_compare; \
exit 1; \ exit 1; \
else \ else \
true; \ echo Comparison successful.; \
fi ; \ fi ; \
$(STAMP) [+compare-target+][+ IF prev +] $(STAMP) [+compare-target+][+ IF prev +]
if $(LEAN); then \ if $(LEAN); then \
@ -1420,19 +1423,39 @@ stagefeedback-start::
@if gcc-bootstrap @if gcc-bootstrap
do-distclean: distclean-stage1 do-distclean: distclean-stage1
# Provide a GCC build when we're building target libraries. This does
# not work as a dependency, just as the minimum necessary to avoid errors.
stage_last:
$(MAKE) $(RECURSE_FLAGS_TO_PASS) stage1-bubble
@endif gcc-bootstrap @endif gcc-bootstrap
.PHONY: restrap
restrap:
@: $(MAKE); $(stage)
rm -rf stage1-$(TARGET_SUBDIR) [+ FOR bootstrap-stage +][+ IF prev
+]stage[+id+] [+ ENDIF prev +][+ ENDFOR bootstrap-stage +]
$(MAKE) $(RECURSE_FLAGS_TO_PASS) all
# -------------------------------------- # --------------------------------------
# Dependencies between different modules # Dependencies between different modules
# -------------------------------------- # --------------------------------------
# Generic dependencies for target modules on host stuff, especially gcc # Generic dependencies for target modules on host stuff, especially gcc
[+ FOR target_modules +][+ IF bootstrap +] @if gcc-bootstrap[+ FOR target_modules +][+ IF bootstrap
@if gcc-bootstrap[+ FOR bootstrap_stage +] +][+ FOR bootstrap_stage +]
configure-stage[+id+]-target-[+module+]: maybe-all-stage[+id+]-gcc[+ ENDFOR +] configure-stage[+id+]-target-[+module+]: maybe-all-stage[+id+]-gcc[+
@endif gcc-bootstrap[+ ENDIF bootstrap +] ENDFOR +][+ ELSE bootstrap +]
configure-target-[+module+]: maybe-all-gcc configure-target-[+module+]: stage_last[+
[+ ENDFOR target_modules +] ENDIF bootstrap +][+ ENDFOR target_modules +]
@endif gcc-bootstrap
@if gcc-no-bootstrap[+ FOR target_modules +][+ IF bootstrap
+][+ ELSE +]
configure-target-[+module+]: maybe-all-gcc[+
ENDIF bootstrap +][+ ENDFOR target_modules +]
@endif gcc-no-bootstrap
[+ FOR lang_env_dependencies +] [+ FOR lang_env_dependencies +]
configure-target-[+module+]: maybe-all-target-newlib maybe-all-target-libgloss configure-target-[+module+]: maybe-all-target-newlib maybe-all-target-libgloss

273
configure vendored
View File

File diff suppressed because it is too large Load Diff

7
configure.in
View File

@ -1060,8 +1060,6 @@ if test "${build}" != "${host}" ; then
CXX=${CXX-${host_alias}-c++} CXX=${CXX-${host_alias}-c++}
CXXFLAGS=${CXXFLAGS-"-g -O2"} CXXFLAGS=${CXXFLAGS-"-g -O2"}
CC_FOR_BUILD=${CC_FOR_BUILD-gcc} CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
BUILD_PREFIX=${build_alias}-
BUILD_PREFIX_1=${build_alias}-
else else
# Set reasonable default values for some tools even if not Canadian. # Set reasonable default values for some tools even if not Canadian.
@ -1073,9 +1071,6 @@ else
# This is all going to change when we autoconfiscate... # This is all going to change when we autoconfiscate...
CC_FOR_BUILD="\$(CC)" CC_FOR_BUILD="\$(CC)"
BUILD_PREFIX=
BUILD_PREFIX_1=loser-
AC_PROG_CC AC_PROG_CC
# We must set the default linker to the linker used by gcc for the correct # We must set the default linker to the linker used by gcc for the correct
@ -2160,8 +2155,6 @@ AC_SUBST_FILE(ospace_frag)
# Miscellanea: directories, flags, etc. # Miscellanea: directories, flags, etc.
AC_SUBST(RPATH_ENVVAR) AC_SUBST(RPATH_ENVVAR)
AC_SUBST(BUILD_PREFIX)
AC_SUBST(BUILD_PREFIX_1)
AC_SUBST(tooldir) AC_SUBST(tooldir)
AC_SUBST(build_tooldir) AC_SUBST(build_tooldir)
AC_SUBST(CONFIGURE_GDB_TK) AC_SUBST(CONFIGURE_GDB_TK)

25
gcc/ChangeLog
View File

@ -1,3 +1,28 @@
2006-02-20 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/25476
* Makefile.in (LDFLAGS): Define from autoconf substitution.
* Makefile.in (BOOTSTRAPPING): New.
(quickstrap): New definition if BOOTSTRAPPING=yes.
* Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
* configure.ac: Substitute all_selected_languages with the languages
that were configured. For all the other variables except
lang_specs_files, include all the languages in the tree.
* configure: Regenerate.
* Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
if there is one. Run the commands to run fixincludes in the same
subshell.
* doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
* doc/install.texi: Document exact conventions for searching target tools.
Document --with-build-time-tools. Document toplevel bootstrap. Document
something more about building an Ada cross-compiler. Don't list GNU Make
requirements which affect all platforms.
2006-02-19 Roger Sayle <roger@eyesopen.com> 2006-02-19 Roger Sayle <roger@eyesopen.com>
PR middle-end/19543 PR middle-end/19543

20
gcc/Makefile.in
View File

@ -130,7 +130,7 @@ T_ADAFLAGS =
SUBDIRS =@subdirs@ build SUBDIRS =@subdirs@ build
# Selection of languages to be made. # Selection of languages to be made.
CONFIG_LANGUAGES = @all_languages@ CONFIG_LANGUAGES = @all_selected_languages@
LANGUAGES = c gcov$(exeext) gcov-dump$(exeext) $(CONFIG_LANGUAGES) LANGUAGES = c gcov$(exeext) gcov-dump$(exeext) $(CONFIG_LANGUAGES)
# Selection of languages to be made during stage1 build. # Selection of languages to be made during stage1 build.
@ -150,6 +150,7 @@ BOOT_LANGUAGES = c @all_boot_languages@
XCFLAGS = XCFLAGS =
TCFLAGS = TCFLAGS =
CFLAGS = -g CFLAGS = -g
LDFLAGS = @LDFLAGS@
STAGE1_CFLAGS = -g @stage1_cflags@ STAGE1_CFLAGS = -g @stage1_cflags@
STAGE1_CHECKING = -DENABLE_CHECKING -DENABLE_ASSERT_CHECKING STAGE1_CHECKING = -DENABLE_CHECKING -DENABLE_ASSERT_CHECKING
BOOT_CFLAGS = -g -O2 BOOT_CFLAGS = -g -O2
@ -3193,17 +3194,23 @@ stmp-fixinc: gsyslimits.h macro_list \
fi fi
rm -rf include; mkdir include rm -rf include; mkdir include
-chmod a+rx include -chmod a+rx include
if [ -d ../prev-gcc ]; then \
cd ../prev-gcc && \
$(MAKE) $(INSTALL_HEADERS_DIR) DESTDIR=`pwd`/../gcc/ \
libsubdir=. ; \
else \
(TARGET_MACHINE='$(target)'; srcdir=`cd $(srcdir); ${PWD_COMMAND}`; \ (TARGET_MACHINE='$(target)'; srcdir=`cd $(srcdir); ${PWD_COMMAND}`; \
SHELL='$(SHELL)'; MACRO_LIST=`${PWD_COMMAND}`/macro_list ; \ SHELL='$(SHELL)'; MACRO_LIST=`${PWD_COMMAND}`/macro_list ; \
export TARGET_MACHINE srcdir SHELL MACRO_LIST && \ export TARGET_MACHINE srcdir SHELL MACRO_LIST && \
cd $(build_objdir)/fixincludes && \ cd $(build_objdir)/fixincludes && \
$(SHELL) ./fixinc.sh ../../gcc/include \ $(SHELL) ./fixinc.sh ../../gcc/include \
$(SYSTEM_HEADER_DIR) $(OTHER_FIXINCLUDES_DIRS) ) $(SYSTEM_HEADER_DIR) $(OTHER_FIXINCLUDES_DIRS) ); \
rm -f include/syslimits.h rm -f include/syslimits.h; \
if [ -f include/limits.h ]; then \ if [ -f include/limits.h ]; then \
mv include/limits.h include/syslimits.h; \ mv include/limits.h include/syslimits.h; \
else \ else \
cp $(srcdir)/gsyslimits.h include/syslimits.h; \ cp $(srcdir)/gsyslimits.h include/syslimits.h; \
fi; \
fi fi
chmod a+r include/syslimits.h chmod a+r include/syslimits.h
$(STAMP) stmp-fixinc $(STAMP) stmp-fixinc
@ -4239,12 +4246,19 @@ bubblestrap:
$(MAKE) $(REMAKEFLAGS) stage4_build || exit 1; \ $(MAKE) $(REMAKEFLAGS) stage4_build || exit 1; \
fi fi
BOOTSTRAPPING := $(shell if test -f ../stage_last; then echo yes; else echo no; fi)
ifeq ($(BOOTSTRAPPING),yes)
# Provide quickstrap as a target that people can type into the gcc directory,
# and that fails if you're not into it.
quickstrap: all
else
quickstrap: quickstrap:
if test -f stage_last ; then \ if test -f stage_last ; then \
LAST=`cat stage_last`; rm $$LAST; $(MAKE) $(REMAKEFLAGS) $$LAST; \ LAST=`cat stage_last`; rm $$LAST; $(MAKE) $(REMAKEFLAGS) $$LAST; \
else \ else \
$(MAKE) $(REMAKEFLAGS) stage1_build; \ $(MAKE) $(REMAKEFLAGS) stage1_build; \
fi fi
endif
cleanstrap: cleanstrap:
-$(MAKE) clean -$(MAKE) clean

103
gcc/configure vendored
View File

@ -309,7 +309,7 @@ ac_includes_default="\
# include <unistd.h> # include <unistd.h>
#endif" #endif"
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os target_noncanonical build_subdir host_subdir target_subdir GENINSRC CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT NO_MINUS_C_MINUS_O OUTPUT_OPTION CPP EGREP strict1_warn cxx_compat_warn warn_cflags WERROR nocommon_flag TREEBROWSER valgrind_path valgrind_path_defines valgrind_command coverage_flags enable_multilib enable_decimal_float enable_shared TARGET_SYSTEM_ROOT TARGET_SYSTEM_ROOT_DEFINE CROSS_SYSTEM_HEADER_DIR onestep SET_MAKE AWK LN_S LN RANLIB ac_ct_RANLIB ranlib_flags INSTALL INSTALL_PROGRAM INSTALL_DATA make_compare_target have_mktemp_command MAKEINFO BUILD_INFO GENERATED_MANPAGES FLEX BISON NM AR stage1_cflags COLLECT2_LIBS GNAT_LIBEXC LDEXP_LIB TARGET_GETGROUPS_T LIBICONV LTLIBICONV LIBICONV_DEP manext objext gthread_flags extra_modes_file extra_opt_files USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS host_cc_for_libada CROSS ALL SYSTEM_HEADER_DIR inhibit_libc CC_FOR_BUILD BUILD_CFLAGS STMP_FIXINC STMP_FIXPROTO collect2 gcc_cv_as ORIGINAL_AS_FOR_TARGET gcc_cv_ld ORIGINAL_LD_FOR_TARGET gcc_cv_nm ORIGINAL_NM_FOR_TARGET gcc_cv_objdump libgcc_visibility GGC zlibdir zlibinc MAINT gcc_tooldir dollar slibdir objdir subdirs srcdir all_boot_languages all_compilers all_gtfiles all_gtfiles_files_langs all_gtfiles_files_files all_lang_makefrags all_lang_makefiles all_languages all_stagestuff build_exeext build_install_headers_dir build_xm_file_list build_xm_include_list build_xm_defines check_languages cc_set_by_configure quoted_cc_set_by_configure cpp_install_dir xmake_file tmake_file extra_gcc_objs extra_headers_list extra_objs extra_parts extra_passes extra_programs float_h_file gcc_config_arguments gcc_gxx_include_dir libstdcxx_incdir host_exeext host_xm_file_list host_xm_include_list host_xm_defines out_host_hook_obj install lang_opt_files lang_specs_files lang_tree_files local_prefix md_file objc_boehm_gc out_file out_object_file stage_prefix_set_by_configure quoted_stage_prefix_set_by_configure thread_file tm_file_list tm_include_list tm_defines tm_p_file_list tm_p_include_list xm_file_list xm_include_list xm_defines c_target_objs cxx_target_objs target_cpu_default GMPLIBS GMPINC LIBOBJS LTLIBOBJS' ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os target_noncanonical build_subdir host_subdir target_subdir GENINSRC CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT NO_MINUS_C_MINUS_O OUTPUT_OPTION CPP EGREP strict1_warn cxx_compat_warn warn_cflags WERROR nocommon_flag TREEBROWSER valgrind_path valgrind_path_defines valgrind_command coverage_flags enable_multilib enable_decimal_float enable_shared TARGET_SYSTEM_ROOT TARGET_SYSTEM_ROOT_DEFINE CROSS_SYSTEM_HEADER_DIR onestep SET_MAKE AWK LN_S LN RANLIB ac_ct_RANLIB ranlib_flags INSTALL INSTALL_PROGRAM INSTALL_DATA make_compare_target have_mktemp_command MAKEINFO BUILD_INFO GENERATED_MANPAGES FLEX BISON NM AR stage1_cflags COLLECT2_LIBS GNAT_LIBEXC LDEXP_LIB TARGET_GETGROUPS_T LIBICONV LTLIBICONV LIBICONV_DEP manext objext gthread_flags extra_modes_file extra_opt_files USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS host_cc_for_libada CROSS ALL SYSTEM_HEADER_DIR inhibit_libc CC_FOR_BUILD BUILD_CFLAGS STMP_FIXINC STMP_FIXPROTO collect2 gcc_cv_as ORIGINAL_AS_FOR_TARGET gcc_cv_ld ORIGINAL_LD_FOR_TARGET gcc_cv_nm ORIGINAL_NM_FOR_TARGET gcc_cv_objdump libgcc_visibility GGC zlibdir zlibinc MAINT gcc_tooldir dollar slibdir objdir subdirs srcdir all_boot_languages all_compilers all_gtfiles all_gtfiles_files_langs all_gtfiles_files_files all_lang_makefrags all_lang_makefiles all_languages all_selected_languages all_stagestuff build_exeext build_install_headers_dir build_xm_file_list build_xm_include_list build_xm_defines check_languages cc_set_by_configure quoted_cc_set_by_configure cpp_install_dir xmake_file tmake_file extra_gcc_objs extra_headers_list extra_objs extra_parts extra_passes extra_programs float_h_file gcc_config_arguments gcc_gxx_include_dir libstdcxx_incdir host_exeext host_xm_file_list host_xm_include_list host_xm_defines out_host_hook_obj install lang_opt_files lang_specs_files lang_tree_files local_prefix md_file objc_boehm_gc out_file out_object_file stage_prefix_set_by_configure quoted_stage_prefix_set_by_configure thread_file tm_file_list tm_include_list tm_defines tm_p_file_list tm_p_include_list xm_file_list xm_include_list xm_defines c_target_objs cxx_target_objs target_cpu_default GMPLIBS GMPINC LIBOBJS LTLIBOBJS'
ac_subst_files='language_hooks' ac_subst_files='language_hooks'
# Initialize some variables set by options. # Initialize some variables set by options.
@ -7184,28 +7184,6 @@ else
enable_languages=c enable_languages=c
fi; fi;
subdirs=
for lang in ${srcdir}/*/config-lang.in
do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
${srcdir}/[*]/config-lang.in) ;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
if test "x$lang_alias" = x
then
echo "$lang doesn't set \$language." 1>&2
exit 1
fi
case ",$enable_languages," in
*,$lang_alias,*)
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
esac
;;
esac
done
# ------------------------- # -------------------------
# Checks for other programs # Checks for other programs
@ -7634,7 +7612,7 @@ if test "${gcc_cv_prog_makeinfo_modern+set}" = set; then
else else
ac_prog_version=`$MAKEINFO --version 2>&1 | ac_prog_version=`$MAKEINFO --version 2>&1 |
sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'` sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
echo "configure:7637: version of makeinfo is $ac_prog_version" >&5 echo "configure:7615: version of makeinfo is $ac_prog_version" >&5
case $ac_prog_version in case $ac_prog_version in
'') gcc_cv_prog_makeinfo_modern=no;; '') gcc_cv_prog_makeinfo_modern=no;;
4.[4-9]*) 4.[4-9]*)
@ -15767,22 +15745,10 @@ fi
# Make empty files to contain the specs and options for each language. # Make empty files to contain the specs and options for each language.
# Then add #include lines to for a compiler that has specs and/or options. # Then add #include lines to for a compiler that has specs and/or options.
subdirs=
lang_opt_files= lang_opt_files=
lang_specs_files= lang_specs_files=
lang_tree_files= lang_tree_files=
for subdir in . $subdirs
do
if test -f $srcdir/$subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
fi
if test -f $srcdir/$subdir/lang-specs.h; then
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
fi
if test -f $srcdir/$subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
fi
done
# These (without "all_") are set in each config-lang.in. # These (without "all_") are set in each config-lang.in.
# `language' must be a single word so is spelled singularly. # `language' must be a single word so is spelled singularly.
all_languages= all_languages=
@ -15800,6 +15766,10 @@ all_gtfiles="$target_gtfiles"
all_gtfiles_files_langs= all_gtfiles_files_langs=
all_gtfiles_files_files= all_gtfiles_files_files=
# These are the languages that are set in --enable-languages,
# and are available in the GCC tree.
all_selected_languages=
# Add the language fragments. # Add the language fragments.
# Languages are added via two mechanisms. Some information must be # Languages are added via two mechanisms. Some information must be
# recorded in makefile variables, these are defined in config-lang.in. # recorded in makefile variables, these are defined in config-lang.in.
@ -15809,23 +15779,53 @@ all_gtfiles_files_files=
language_hooks="Make-hooks" language_hooks="Make-hooks"
for s in $subdirs for lang in ${srcdir}/*/config-lang.in
do do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
${srcdir}/[*]/config-lang.in)
continue ;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
if test "x$lang_alias" = x
then
echo "$lang doesn't set \$language." 1>&2
exit 1
fi
subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
subdirs="$subdirs $subdir"
case ",$enable_languages," in
*,$lang_alias,*)
all_selected_languages="$all_selected_languages $lang_alias"
if test -f $srcdir/$subdir/lang-specs.h; then
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
fi
;;
esac
if test -f $srcdir/$subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
fi
if test -f $srcdir/$subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
fi
language= language=
boot_language= boot_language=
compilers= compilers=
stagestuff= stagestuff=
outputs= outputs=
gtfiles= gtfiles=
. ${srcdir}/$s/config-lang.in . ${srcdir}/$subdir/config-lang.in
if test "x$language" = x if test "x$language" = x
then then
echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
exit 1 exit 1
fi fi
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in" all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
if test -f ${srcdir}/$s/Makefile.in if test -f ${srcdir}/$subdir/Makefile.in
then all_lang_makefiles="$s/Makefile" then all_lang_makefiles="$subdir/Makefile"
fi fi
all_languages="$all_languages $language" all_languages="$all_languages $language"
if test "x$boot_language" = xyes if test "x$boot_language" = xyes
@ -15838,30 +15838,32 @@ do
all_gtfiles="$all_gtfiles $gtfiles" all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles for f in $gtfiles
do do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} " all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done done
;;
esac
done done
# Pick up gtfiles for c # Pick up gtfiles for c
gtfiles= gtfiles=
s="c" subdir="c"
. ${srcdir}/c-config-lang.in . ${srcdir}/c-config-lang.in
all_gtfiles="$all_gtfiles $gtfiles" all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles for f in $gtfiles
do do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} " all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done done
check_languages= check_languages=
for language in $all_languages for language in $all_selected_languages
do do
check_languages="$check_languages check-$language" check_languages="$check_languages check-$language"
done done
# We link each language in with a set of hooks, reached indirectly via # We link each language in with a set of hooks, reached indirectly via
# lang.${target}. # lang.${target}. Only do so for selected languages.
rm -f Make-hooks rm -f Make-hooks
touch Make-hooks touch Make-hooks
@ -15870,10 +15872,11 @@ target_list="all.cross start.encap rest.encap tags \
uninstall info man srcextra srcman srcinfo \ uninstall info man srcextra srcman srcinfo \
mostlyclean clean distclean maintainer-clean \ mostlyclean clean distclean maintainer-clean \
stage1 stage2 stage3 stage4 stageprofile stagefeedback" stage1 stage2 stage3 stage4 stageprofile stagefeedback"
for t in $target_list for t in $target_list
do do
x= x=
for lang in $all_languages for lang in $all_selected_languages
do do
x="$x $lang.$t" x="$x $lang.$t"
done done
@ -16026,6 +16029,7 @@ objdir=`${PWDCMD-pwd}`
# Echo link setup. # Echo link setup.
@ -16802,6 +16806,7 @@ s,@all_gtfiles_files_files@,$all_gtfiles_files_files,;t t
s,@all_lang_makefrags@,$all_lang_makefrags,;t t s,@all_lang_makefrags@,$all_lang_makefrags,;t t
s,@all_lang_makefiles@,$all_lang_makefiles,;t t s,@all_lang_makefiles@,$all_lang_makefiles,;t t
s,@all_languages@,$all_languages,;t t s,@all_languages@,$all_languages,;t t
s,@all_selected_languages@,$all_selected_languages,;t t
s,@all_stagestuff@,$all_stagestuff,;t t s,@all_stagestuff@,$all_stagestuff,;t t
s,@build_exeext@,$build_exeext,;t t s,@build_exeext@,$build_exeext,;t t
s,@build_install_headers_dir@,$build_install_headers_dir,;t t s,@build_install_headers_dir@,$build_install_headers_dir,;t t

102
gcc/configure.ac
View File

@ -817,30 +817,6 @@ AC_ARG_ENABLE(languages,
esac], esac],
[enable_languages=c]) [enable_languages=c])
subdirs=
for lang in ${srcdir}/*/config-lang.in
do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
changequote(,)dnl
${srcdir}/[*]/config-lang.in) ;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
if test "x$lang_alias" = x
then
echo "$lang doesn't set \$language." 1>&2
exit 1
fi
case ",$enable_languages," in
*,$lang_alias,*)
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
esac
;;
changequote([,])dnl
esac
done
# ------------------------- # -------------------------
# Checks for other programs # Checks for other programs
@ -3258,22 +3234,10 @@ AC_SUBST(MAINT)dnl
# Make empty files to contain the specs and options for each language. # Make empty files to contain the specs and options for each language.
# Then add #include lines to for a compiler that has specs and/or options. # Then add #include lines to for a compiler that has specs and/or options.
subdirs=
lang_opt_files= lang_opt_files=
lang_specs_files= lang_specs_files=
lang_tree_files= lang_tree_files=
for subdir in . $subdirs
do
if test -f $srcdir/$subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
fi
if test -f $srcdir/$subdir/lang-specs.h; then
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
fi
if test -f $srcdir/$subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
fi
done
# These (without "all_") are set in each config-lang.in. # These (without "all_") are set in each config-lang.in.
# `language' must be a single word so is spelled singularly. # `language' must be a single word so is spelled singularly.
all_languages= all_languages=
@ -3291,6 +3255,10 @@ all_gtfiles="$target_gtfiles"
all_gtfiles_files_langs= all_gtfiles_files_langs=
all_gtfiles_files_files= all_gtfiles_files_files=
# These are the languages that are set in --enable-languages,
# and are available in the GCC tree.
all_selected_languages=
# Add the language fragments. # Add the language fragments.
# Languages are added via two mechanisms. Some information must be # Languages are added via two mechanisms. Some information must be
# recorded in makefile variables, these are defined in config-lang.in. # recorded in makefile variables, these are defined in config-lang.in.
@ -3300,23 +3268,55 @@ all_gtfiles_files_files=
language_hooks="Make-hooks" language_hooks="Make-hooks"
for s in $subdirs for lang in ${srcdir}/*/config-lang.in
do do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
changequote(,)dnl
${srcdir}/[*]/config-lang.in)
continue ;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
if test "x$lang_alias" = x
then
echo "$lang doesn't set \$language." 1>&2
exit 1
fi
subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
subdirs="$subdirs $subdir"
case ",$enable_languages," in
*,$lang_alias,*)
all_selected_languages="$all_selected_languages $lang_alias"
if test -f $srcdir/$subdir/lang-specs.h; then
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
fi
;;
esac
changequote([,])dnl
if test -f $srcdir/$subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
fi
if test -f $srcdir/$subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
fi
language= language=
boot_language= boot_language=
compilers= compilers=
stagestuff= stagestuff=
outputs= outputs=
gtfiles= gtfiles=
. ${srcdir}/$s/config-lang.in . ${srcdir}/$subdir/config-lang.in
if test "x$language" = x if test "x$language" = x
then then
echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
exit 1 exit 1
fi fi
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in" all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
if test -f ${srcdir}/$s/Makefile.in if test -f ${srcdir}/$subdir/Makefile.in
then all_lang_makefiles="$s/Makefile" then all_lang_makefiles="$subdir/Makefile"
fi fi
all_languages="$all_languages $language" all_languages="$all_languages $language"
if test "x$boot_language" = xyes if test "x$boot_language" = xyes
@ -3329,30 +3329,32 @@ do
all_gtfiles="$all_gtfiles $gtfiles" all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles for f in $gtfiles
do do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} " all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done done
;;
esac
done done
# Pick up gtfiles for c # Pick up gtfiles for c
gtfiles= gtfiles=
s="c" subdir="c"
. ${srcdir}/c-config-lang.in . ${srcdir}/c-config-lang.in
all_gtfiles="$all_gtfiles $gtfiles" all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles for f in $gtfiles
do do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} " all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done done
check_languages= check_languages=
for language in $all_languages for language in $all_selected_languages
do do
check_languages="$check_languages check-$language" check_languages="$check_languages check-$language"
done done
# We link each language in with a set of hooks, reached indirectly via # We link each language in with a set of hooks, reached indirectly via
# lang.${target}. # lang.${target}. Only do so for selected languages.
rm -f Make-hooks rm -f Make-hooks
touch Make-hooks touch Make-hooks
@ -3361,10 +3363,11 @@ target_list="all.cross start.encap rest.encap tags \
uninstall info man srcextra srcman srcinfo \ uninstall info man srcextra srcman srcinfo \
mostlyclean clean distclean maintainer-clean \ mostlyclean clean distclean maintainer-clean \
stage1 stage2 stage3 stage4 stageprofile stagefeedback" stage1 stage2 stage3 stage4 stageprofile stagefeedback"
for t in $target_list for t in $target_list
do do
x= x=
for lang in $all_languages for lang in $all_selected_languages
do do
x="$x $lang.$t" x="$x $lang.$t"
done done
@ -3463,6 +3466,7 @@ AC_SUBST(all_gtfiles_files_files)
AC_SUBST(all_lang_makefrags) AC_SUBST(all_lang_makefrags)
AC_SUBST(all_lang_makefiles) AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages) AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
AC_SUBST(all_stagestuff) AC_SUBST(all_stagestuff)
AC_SUBST(build_exeext) AC_SUBST(build_exeext)
AC_SUBST(build_install_headers_dir) AC_SUBST(build_install_headers_dir)

180
gcc/doc/install.texi
View File

@ -527,6 +527,7 @@ Second, when configuring a native system, either @command{cc} or
your environment before running configure. Otherwise the configuration your environment before running configure. Otherwise the configuration
scripts may fail. scripts may fail.
@ignore
Note that the bootstrap compiler and the resulting GCC must be link Note that the bootstrap compiler and the resulting GCC must be link
compatible, else the bootstrap will fail with linker errors about compatible, else the bootstrap will fail with linker errors about
incompatible object file formats. Several multilibed targets are incompatible object file formats. Several multilibed targets are
@ -537,6 +538,7 @@ affected by this requirement, see
@ifhtml @ifhtml
@uref{specific.html,,host/target specific installation notes}. @uref{specific.html,,host/target specific installation notes}.
@end ifhtml @end ifhtml
@end ignore
To configure GCC: To configure GCC:
@ -777,7 +779,8 @@ assembler found is not actually the GNU assembler. (Confusion may also
result if the compiler finds the GNU assembler but has not been result if the compiler finds the GNU assembler but has not been
configured with @option{--with-gnu-as}.) If you have more than one configured with @option{--with-gnu-as}.) If you have more than one
assembler installed on your system, you may want to use this option in assembler installed on your system, you may want to use this option in
connection with @option{--with-as=@var{pathname}}. connection with @option{--with-as=@var{pathname}} or
@option{--with-build-time-tools=@var{pathname}}.
The following systems are the only ones where it makes a difference The following systems are the only ones where it makes a difference
whether you use the GNU assembler. On any other system, whether you use the GNU assembler. On any other system,
@ -800,28 +803,40 @@ the 386, if you use the GNU assembler, you should also use the GNU linker
(and specify @option{--with-gnu-ld}). (and specify @option{--with-gnu-ld}).
@item @anchor{with-as}--with-as=@var{pathname} @item @anchor{with-as}--with-as=@var{pathname}
Specify that the Specify that the compiler should use the assembler pointed to by
compiler should use the assembler pointed to by @var{pathname}, rather @var{pathname}, rather than the one found by the standard rules to find
than the one found by the standard rules to find an assembler, which an assembler, which are:
are:
@itemize @bullet @itemize @bullet
@item @item
Check the @file{@var{libexec}/gcc/@var{target}/@var{version}} Unless GCC is being built with a cross compiler, check the
directory, where @var{libexec} defaults to @file{@var{libexec}/gcc/@var{target}/@var{version}} directory.
@file{@var{exec-prefix}/libexec} and @var{exec-prefix} defaults to @var{libexec} defaults to @file{@var{exec-prefix}/libexec};
@var{prefix} which defaults to @file{/usr/local} unless overridden by @var{exec-prefix} defaults to @var{prefix}, which
the @option{--prefix=@var{pathname}} switch described defaults to @file{/usr/local} unless overridden by the
above. @var{target} is the target system triple, such as @option{--prefix=@var{pathname}} switch described above. @var{target}
@samp{sparc-sun-solaris2.7}, and @var{version} denotes the GCC is the target system triple, such as @samp{sparc-sun-solaris2.7}, and
version, such as 3.0. @var{version} denotes the GCC version, such as 3.0.
@item @item
Check operating system specific directories (e.g.@: @file{/usr/ccs/bin} on If the target system is the same that you are building on, check
operating system specific directories (e.g.@: @file{/usr/ccs/bin} on
Sun Solaris 2). Sun Solaris 2).
@item
Check in the @env{PATH} for a tool whose name is prefixed by the
target system triple.
@item
Check in the @env{PATH} for a tool whose name is not prefixed by the
target system triple, if the host and target system triple are
the same (in other words, we use a host tool if it can be used for
the target as well).
@end itemize @end itemize
Note that these rules do not check for the value of @env{PATH}. You may
want to use @option{--with-as} if no assembler is installed in the You may want to use @option{--with-as} if no assembler
directories listed above, or if you have multiple assemblers installed is installed in the directories listed above, or if you have multiple
and want to choose one that is not found by the above rules. assemblers installed and want to choose one that is not found by the
above rules.
@item @anchor{with-gnu-ld}--with-gnu-ld @item @anchor{with-gnu-ld}--with-gnu-ld
Same as @uref{#with-gnu-as,,@option{--with-gnu-as}} Same as @uref{#with-gnu-as,,@option{--with-gnu-as}}
@ -1072,9 +1087,9 @@ Building the Ada compiler has special requirements, see below.
If you do not pass this flag, or specify the option @code{all}, then all If you do not pass this flag, or specify the option @code{all}, then all
default languages available in the @file{gcc} sub-tree will be configured. default languages available in the @file{gcc} sub-tree will be configured.
Ada, Objective-C++, and treelang are not default languages; the rest are. Ada, Objective-C++, and treelang are not default languages; the rest are.
Re-defining @code{LANGUAGES} when calling @samp{make bootstrap} Re-defining @code{LANGUAGES} when calling @samp{make} @strong{does not}
@strong{does not} work anymore, as those language sub-directories might work anymore, as those language sub-directories might not have been
not have been configured! configured!
@item --disable-libada @item --disable-libada
Specify that the run-time libraries and tools used by GNAT should not Specify that the run-time libraries and tools used by GNAT should not
@ -1294,11 +1309,29 @@ Specifies a list of directories which contain the target runtime
libraries. These libraries will be copied into the @file{gcc} install libraries. These libraries will be copied into the @file{gcc} install
directory. If the directory list is omitted, this option has no directory. If the directory list is omitted, this option has no
effect. effect.
@item --with-newlib @item --with-newlib
Specifies that @samp{newlib} is Specifies that @samp{newlib} is
being used as the target C library. This causes @code{__eprintf} to be being used as the target C library. This causes @code{__eprintf} to be
omitted from @file{libgcc.a} on the assumption that it will be provided by omitted from @file{libgcc.a} on the assumption that it will be provided by
@samp{newlib}. @samp{newlib}.
@item --with-build-time-tools=@var{dir}
Specifies where to find the set of target tools (assembler, linker, etc.)
that will be used while building GCC itself. This option can be useful
if the directory layouts are different between the system you are building
GCC on, and the system where you will deploy it.
For example, on a @option{ia64-hp-hpux} system, you may have the GNU
assembler and linker in @file{/usr/bin}, and the native tools in a
different path, and build a toolchain that expects to find the
native tools in @file{/usr/bin}.
When you use this option, you should ensure that @var{dir} includes
@command{ar}, @command{as}, @command{ld}, @command{nm},
@command{ranlib} and @command{strip} if necessary, and possibly
@command{objdump}. Otherwise, GCC may use an inconsistent set of
tools.
@end table @end table
@subheading Fortran-Specific Options @subheading Fortran-Specific Options
@ -1521,22 +1554,22 @@ documentation pre-built for the unmodified documentation in the release.
@section Building a native compiler @section Building a native compiler
For a native build issue the command @samp{make bootstrap}. This For a native build, the command @samp{make} will trigger a 3-stage
will build the entire GCC system, which includes the following steps: bootstrap of the compiler. This will build the entire GCC system
and ensure that it compiles itself correctly, by doing the
following steps:
@itemize @bullet @itemize @bullet
@item @item
Build host tools necessary to build the compiler such as texinfo, bison, Build tools necessary to build the compiler such as texinfo, bison,
gperf. gperf.
@item @item
Build target tools for use by the compiler such as binutils (bfd, Perform a 3-stage bootstrap of the compiler. This includes building
binutils, gas, gprof, ld, and opcodes) three times the target tools for use by the compiler such as binutils
if they have been individually linked (bfd, binutils, gas, gprof, ld, and opcodes) if they have been
or moved into the top level GCC source tree before configuring. individually linked or moved into the top level GCC source tree before
configuring.
@item
Perform a 3-stage bootstrap of the compiler.
@item @item
Perform a comparison test of the stage2 and stage3 compilers. Perform a comparison test of the stage2 and stage3 compilers.
@ -1547,8 +1580,8 @@ Build runtime libraries using the stage3 compiler from the previous step.
@end itemize @end itemize
If you are short on disk space you might consider @samp{make If you are short on disk space you might consider @samp{make
bootstrap-lean} instead. This is identical to @samp{make bootstrap-lean} instead. The sequence of compilation is the
bootstrap} except that object files from the stage1 and same described above, but object files from the stage1 and
stage2 of the 3-stage bootstrap of the compiler are deleted as stage2 of the 3-stage bootstrap of the compiler are deleted as
soon as they are no longer needed. soon as they are no longer needed.
@ -1565,7 +1598,7 @@ roughly 40% of disk space both for the bootstrap and the final installation.
If you wish to use non-default GCC flags when compiling the stage2 and If you wish to use non-default GCC flags when compiling the stage2 and
stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing
@samp{make bootstrap}. Non-default optimization flags are less well @samp{make}. Non-default optimization flags are less well
tested here than the default of @samp{-g -O2}, but should still work. tested here than the default of @samp{-g -O2}, but should still work.
In a few cases, you may find that you need to specify special flags such In a few cases, you may find that you need to specify special flags such
as @option{-msoft-float} here to complete the bootstrap; or, if the as @option{-msoft-float} here to complete the bootstrap; or, if the
@ -1574,17 +1607,17 @@ around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the
stage1 compiler that were miscompiled, or by using @samp{make stage1 compiler that were miscompiled, or by using @samp{make
bootstrap4} to increase the number of stages of bootstrap. bootstrap4} to increase the number of stages of bootstrap.
Note that using non-standard @code{CFLAGS} can cause bootstrap to fail in Note that using non-standard @code{CFLAGS} can cause bootstrap to fail
@file{libiberty}, if these trigger a warning with the new compiler. For if these trigger a warning with the new compiler. For example using
example using @samp{-O2 -g -mcpu=i686} on @code{i686-pc-linux-gnu} will @samp{-O2 -g -mcpu=i686} on @code{i686-pc-linux-gnu} will cause bootstrap
cause bootstrap failure as @option{-mcpu=} is deprecated in 3.4.0 and above. failure as @option{-mcpu=} is deprecated in 3.4.0 and above.
If you used the flag @option{--enable-languages=@dots{}} to restrict If you used the flag @option{--enable-languages=@dots{}} to restrict
the compilers to be built, only those you've actually enabled will be the compilers to be built, only those you've actually enabled will be
built. This will of course only build those runtime libraries, for built. This will of course only build those runtime libraries, for
which the particular compiler has been built. Please note, which the particular compiler has been built. Please note,
that re-defining @env{LANGUAGES} when calling @samp{make bootstrap} that re-defining @env{LANGUAGES} when calling @samp{make}
@strong{does not} work anymore! @strong{does not} work anymore!
If the comparison of stage2 and stage3 fails, this normally indicates If the comparison of stage2 and stage3 fails, this normally indicates
@ -1594,6 +1627,15 @@ a few systems, meaningful comparison of object files is impossible; they
always appear ``different''. If you encounter this problem, you will always appear ``different''. If you encounter this problem, you will
need to disable comparison in the @file{Makefile}.) need to disable comparison in the @file{Makefile}.)
If you do not want to bootstrap your compiler, you can configure with
@option{--disable-bootstrap}. In particular cases, you may want to
bootstrap your compiler even if the target system is not the same as
the one you are building on: for example, you could build a
@code{powerpc-unknown-linux-gnu} toolchain on a
@code{powerpc64-unknown-linux-gnu} host. In this case, pass
@option{--enable-bootstrap} to the configure script.
@section Building a cross compiler @section Building a cross compiler
We recommend reading the We recommend reading the
@ -1678,21 +1720,25 @@ compilation options. Check your target's definition of
@section Building in parallel @section Building in parallel
You can use @samp{make bootstrap MAKE="make -j 2" -j 2}, or just You can use @samp{make -j 2}@footnote{Only supported by GNU Make 3.79
@samp{make -j 2 bootstrap} for GNU Make 3.79 and above, instead of and above, which is anyway necessary to build GCC.}, instead of @samp{make},
@samp{make bootstrap} to build GCC in parallel. to build GCC in parallel. You can also specify a bigger number, and
You can also specify a bigger number, and in most cases using a value in most cases using a value greater than the number of processors in
greater than the number of processors in your machine will result in your machine will result in fewer and shorter I/O latency hits, thus
fewer and shorter I/O latency hits, thus improving overall throughput; improving overall throughput; this is especially true for slow drives
this is especially true for slow drives and network filesystems. and network filesystems.
@section Building the Ada compiler @section Building the Ada compiler
In order to build GNAT, the Ada compiler, you need a working GNAT In order to build GNAT, the Ada compiler, you need a working GNAT
compiler (GNAT version 3.14 or later, or GCC version 3.1 or later), compiler (GNAT version 3.14 or later, or GCC version 3.1 or later).
including GNAT tools such as @command{gnatmake} and @command{gnatlink}, This includes GNAT tools such as @command{gnatmake} and
since the Ada front end is written in Ada (with some @command{gnatlink}, since the Ada front end is written in Ada and
GNAT-specific extensions), and GNU make. uses some GNAT-specific extensions.
In order to build a cross compiler, it is suggested to install
the new compiler as native first, and then use it to build the cross
compiler.
@command{configure} does not test whether the GNAT installation works @command{configure} does not test whether the GNAT installation works
and has a sufficiently recent version; if too old a GNAT version is and has a sufficiently recent version; if too old a GNAT version is
@ -1704,7 +1750,7 @@ used to disable building the Ada front end.
It is possible to use profile feedback to optimize the compiler itself. This It is possible to use profile feedback to optimize the compiler itself. This
should result in a faster compiler binary. Experiments done on x86 using gcc should result in a faster compiler binary. Experiments done on x86 using gcc
3.3 showed approximately 7 percent speedup on compiling C programs. To 3.3 showed approximately 7 percent speedup on compiling C programs. To
bootstrap compiler with profile feedback, use @code{make profiledbootstrap}. bootstrap the compiler with profile feedback, use @code{make profiledbootstrap}.
When @samp{make profiledbootstrap} is run, it will first build a @code{stage1} When @samp{make profiledbootstrap} is run, it will first build a @code{stage1}
compiler. This compiler is used to build a @code{stageprofile} compiler compiler. This compiler is used to build a @code{stageprofile} compiler
@ -1712,7 +1758,7 @@ instrumented to collect execution counts of instruction and branch
probabilities. Then runtime libraries are compiled with profile collected. probabilities. Then runtime libraries are compiled with profile collected.
Finally a @code{stagefeedback} compiler is built using the information collected. Finally a @code{stagefeedback} compiler is built using the information collected.
Unlike @samp{make bootstrap} several additional restrictions apply. The Unlike standard bootstrap, several additional restrictions apply. The
compiler used to build @code{stage1} needs to support a 64-bit integral type. compiler used to build @code{stage1} needs to support a 64-bit integral type.
It is recommended to only use GCC for this. Also parallel make is currently It is recommended to only use GCC for this. Also parallel make is currently
not supported since collisions in profile collecting may occur. not supported since collisions in profile collecting may occur.
@ -2018,7 +2064,7 @@ it will not be created otherwise. This is regarded as a feature,
not as a bug, because it gives slightly more control to the packagers not as a bug, because it gives slightly more control to the packagers
using the @code{DESTDIR} feature. using the @code{DESTDIR} feature.
If you built a released version of GCC using @samp{make bootstrap} then please If you are bootstrapping a released version of GCC then please
quickly review the build status page for your release, available from quickly review the build status page for your release, available from
@uref{http://gcc.gnu.org/buildstat.html}. @uref{http://gcc.gnu.org/buildstat.html}.
If your system is not listed for the version of GCC that you built, If your system is not listed for the version of GCC that you built,
@ -2476,17 +2522,16 @@ and it is not possible to build parallel applications. Cray modules are not
supported; in particular, Craylibs are assumed to be in supported; in particular, Craylibs are assumed to be in
@file{/opt/ctl/craylibs/craylibs}. @file{/opt/ctl/craylibs/craylibs}.
You absolutely @strong{must} use GNU make on this platform. Also, you On this platform, you need to tell GCC where to find the assembler and
need to tell GCC where to find the assembler and the linker. The the linker. The simplest way to do so is by providing @option{--with-as}
simplest way to do so is by providing @option{--with-as} and and @option{--with-ld} to @file{configure}, e.g.@:
@option{--with-ld} to @file{configure}, e.g.@:
@smallexample @smallexample
configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld \ configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld \
--enable-languages=c --enable-languages=c
@end smallexample @end smallexample
The comparison test during @samp{make bootstrap} fails on Unicos/Mk The comparison test at the end of the bootstrapping process fails on Unicos/Mk
because the assembler inserts timestamps into object files. You should because the assembler inserts timestamps into object files. You should
be able to work around this by doing @samp{make all} after getting this be able to work around this by doing @samp{make all} after getting this
failure. failure.
@ -2824,9 +2869,9 @@ and Latin-America.
The HP assembler on these systems has some problems. Most notably the The HP assembler on these systems has some problems. Most notably the
assembler inserts timestamps into each object file it creates, causing assembler inserts timestamps into each object file it creates, causing
the 3-stage comparison test to fail during a @samp{make bootstrap}. the 3-stage comparison test to fail during a bootstrap.
You should be able to continue by saying @samp{make all} after getting You should be able to continue by saying @samp{make all-host all-target}
the failure from @samp{make bootstrap}. after getting the failure from @samp{make}.
GCC 4.0 requires CVS binutils as of April 28, 2004 or later. Earlier GCC 4.0 requires CVS binutils as of April 28, 2004 or later. Earlier
versions require binutils 2.8 or later. versions require binutils 2.8 or later.
@ -2912,10 +2957,10 @@ many limitations. For example, it does not support weak symbols or alias
definitions. As a result, explicit template instantiations are required definitions. As a result, explicit template instantiations are required
when using C++. This makes it difficult if not impossible to build many when using C++. This makes it difficult if not impossible to build many
C++ applications. You can't generate debugging information when using C++ applications. You can't generate debugging information when using
the HP assembler. Finally, @samp{make bootstrap} fails in the final the HP assembler. Finally, bootstrapping fails in the final
comparison of object modules due to the time stamps that it inserts into comparison of object modules due to the time stamps that it inserts into
the modules. The bootstrap can be continued from this point with the modules. The bootstrap can be continued from this point with
@samp{make all}. @samp{make all-host all-target}.
A recent linker patch must be installed for the correct operation of A recent linker patch must be installed for the correct operation of
GCC 3.3 and later. @code{PHSS_26559} and @code{PHSS_24304} are the GCC 3.3 and later. @code{PHSS_26559} and @code{PHSS_24304} are the
@ -3080,7 +3125,7 @@ command like this:
@emph{You should substitute @samp{i686} in the above command with the appropriate @emph{You should substitute @samp{i686} in the above command with the appropriate
processor for your host.} processor for your host.}
After the usual @samp{make bootstrap} and After the usual @samp{make} and
@samp{make install}, you can then access the UDK-targeted GCC @samp{make install}, you can then access the UDK-targeted GCC
tools by adding @command{udk-} before the commonly known name. For tools by adding @command{udk-} before the commonly known name. For
example, to invoke the C compiler, you would use @command{udk-gcc}. example, to invoke the C compiler, you would use @command{udk-gcc}.
@ -3129,9 +3174,6 @@ removed and the system libunwind library will always be used.
@heading @anchor{x-ibm-aix}*-ibm-aix* @heading @anchor{x-ibm-aix}*-ibm-aix*
Support for AIX version 3 and older was discontinued in GCC 3.4. Support for AIX version 3 and older was discontinued in GCC 3.4.
AIX Make frequently has problems with GCC makefiles. GNU Make 3.79.1 or
newer is recommended to build on this platform.
``out of memory'' bootstrap failures may indicate a problem with ``out of memory'' bootstrap failures may indicate a problem with
process resource limits (ulimit). Hard limits are configured in the process resource limits (ulimit). Hard limits are configured in the
@file{/etc/security/limits} system configuration file. @file{/etc/security/limits} system configuration file.
@ -3144,8 +3186,8 @@ one may use GNU Bash instead of AIX @command{/bin/sh}, e.g.,
% export CONFIG_SHELL % export CONFIG_SHELL
@end smallexample @end smallexample
and then proceed as described in @uref{build.html,,the build instructions}, and then proceed as described in @uref{build.html,,the build
where we strongly recommend using GNU make and specifying an absolute path instructions}, where we strongly recommend specifying an absolute path
to invoke @var{srcdir}/configure. to invoke @var{srcdir}/configure.
Errors involving @code{alloca} when building GCC generally are due Errors involving @code{alloca} when building GCC generally are due

130
gcc/doc/makefile.texi
View File

@ -7,6 +7,8 @@
@cindex makefile targets @cindex makefile targets
@cindex targets, makefile @cindex targets, makefile
These targets are available from the @samp{gcc} directory:
@table @code @table @code
@item all @item all
This is the default target. Depending on what your build/host/target This is the default target. Depending on what your build/host/target
@ -72,49 +74,59 @@ make check-gcc RUNTESTFLAGS="execute.exp=19980413-*"
Note that running the testsuite may require additional tools be Note that running the testsuite may require additional tools be
installed, such as TCL or dejagnu. installed, such as TCL or dejagnu.
@end table
@item bootstrap The toplevel tree from which you start GCC compilation is not
Builds GCC three times---once with the native compiler, once with the the GCC directory, but rather a complex Makefile that coordinates
native-built compiler it just built, and once with the compiler it built the various steps of the build, including bootstrapping the compiler
the second time. In theory, the last two should produce the same and using the new compiler to build target libraries.
results, which @samp{make compare} can check. Each step of this process
is called a ``stage'', and the results of each stage @var{N}
(@var{N} = 1@dots{}3) are copied to a subdirectory @file{stage@var{N}/}.
When GCC is configured for a native configuration, the default action
for @command{make} is to do a full three-stage bootstrap. This means
that GCC is built three times---once with the native compiler, once with
the native-built compiler it just built, and once with the compiler it
built the second time. In theory, the last two should produce the same
results, which @samp{make compare} can check. Each stage is configured
separately and compiled into a separate directory, to minimize problems
due to ABI incompatibilities between the native compiler and GCC.
If you do a change, rebuilding will also start from the first stage
and ``bubble'' up the change through the three stages. Each stage
is taken from its build directory (if it had been built previously),
rebuilt, and copied to its subdirectory. This will allow you to, for
example, continue a bootstrap after fixing a bug which causes the
stage2 build to crash. It does not provide as good coverage of the
compiler as bootstrapping from scratch, but it ensures that the new
code is syntactically correct (e.g. that you did not use GCC extensions
by mistake), and avoids spurious bootstrap comparison
failures@footnote{Except if the compiler was buggy and miscompiled
some of the files that were not modified. In this case, it's best
to use @command{make restrap}.}.
Other targets available from the top level include:
@table @code
@item bootstrap-lean @item bootstrap-lean
Like @code{bootstrap}, except that the various stages are removed once Like @code{bootstrap}, except that the various stages are removed once
they're no longer needed. This saves disk space. they're no longer needed. This saves disk space.
@item bubblestrap @item bootstrap2
This incrementally rebuilds each of the three stages, one at a time. @itemx bootstrap2-lean
It does this by ``bubbling'' the stages up from their subdirectories Performs only the first two stages of bootstrap. Unlike a three-stage
(if they had been built previously), rebuilding them, and copying them bootstrap, this does not perform a comparison to test that the compiler
back to their subdirectories. This will allow you to, for example, is running properly. Note that the disk space required by a ``lean''
continue a bootstrap after fixing a bug which causes the stage2 build bootstrap is approximately independent of the number of stages.
to crash.
@item quickstrap @item stage@var{N}-bubble (@var{N} = 1@dots{}4)
Rebuilds the most recently built stage. Since each stage requires Rebuild all the stages up to @var{N}, with the appropriate flags,
special invocation, using this target means you don't have to keep ``bubbling'' the changes as described above.
track of which stage you're on or what invocation that stage needs.
@item all-stage@var{N} (@var{N} = 1@dots{}4)
Assuming that stage @var{N} has already been built, rebuild it with the
appropriate flags. This is rarely needed.
@item cleanstrap @item cleanstrap
Removed everything (@samp{make clean}) and rebuilds (@samp{make bootstrap}). Remove everything (@samp{make clean}) and rebuilds (@samp{make bootstrap}).
@item restrap
Like @code{cleanstrap}, except that the process starts from the first
stage build, not from scratch.
@item stage@var{N} (@var{N} = 1@dots{}4)
For each stage, moves the appropriate files to the @file{stage@var{N}}
subdirectory.
@item unstage@var{N} (@var{N} = 1@dots{}4)
Undoes the corresponding @code{stage@var{N}}.
@item restage@var{N} (@var{N} = 1@dots{}4)
Undoes the corresponding @code{stage@var{N}} and rebuilds it with the
appropriate flags.
@item compare @item compare
Compares the results of stages 2 and 3. This ensures that the compiler Compares the results of stages 2 and 3. This ensures that the compiler
@ -125,7 +137,53 @@ regardless of how it itself was compiled.
Builds a compiler with profiling feedback information. For more Builds a compiler with profiling feedback information. For more
information, see information, see
@ref{Building,,Building with profile feedback,gccinstall,Installing GCC}. @ref{Building,,Building with profile feedback,gccinstall,Installing GCC}.
This is actually a target in the top-level directory, which then
recurses into the @file{gcc} subdirectory multiple times. @item restrap
Restart a bootstrap, so that everything that was not built with
the system compiler is rebuilt.
@item stage@var{N}-start (@var{N} = 1@dots{}4)
For each package that is bootstrapped, rename directories so that,
for example, @file{gcc} points to the stage@var{N} GCC, compiled
with the stage@var{N-1} GCC@footnote{Customarily, the system compiler
is also termed the @file{stage0} GCC.}.
You will invoke this target if you need to test or debug the
stage@var{N} GCC. If you only need to execute GCC (but you need
not run @samp{make} either to rebuild it or to run test suites),
you should be able to work directly in the @file{stage@var{N}-gcc}
directory. This makes it easier to debug multiple stages in
parallel.
@item stage
For each package that is bootstrapped, relocate its build directory
to indicate its stage. For example, if the @file{gcc} directory
points to the stage2 GCC, after invoking this target it will be
renamed to @file{stage2-gcc}.
@end table @end table
If you wish to use non-default GCC flags when compiling the stage2 and
stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing
@samp{make}.
Usually, the first stage only builds the languages that the compiler
is written in: typically, C and maybe Ada. If you are debugging a
miscompilation of a different stage2 front-end (for example, of the
Fortran front-end), you may want to have front-ends for other languages
in the first stage as well. To do so, set @code{STAGE1_LANGUAGES}
on the command line when doing @samp{make}.
For example, in the aforementioned scenario of debugging a Fortran
front-end miscompilation caused by the stage1 compiler, you may need a
command like
@example
make stage2-bubble STAGE1_LANGUAGES=c,fortran
@end example
Alternatively, you can use per-language targets to build and test
languages that are not enabled by default in stage1. For example,
@command{make f951} will build a Fortran compiler even in the stage1
build directory.