Sun May 12 11:16:58 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

	* mach/Machrules (%.udeps rule): Write deps for %_server.[ch] too.
	(%_server.[ch] rule): Don't depend on %.defs; use #include to get
	installed .defs file.

	* stdio-common/vfprintf.c (flockfile, funlockfile): Define to
	nothing for stdio.  Fix fUNlockfile -> funlockfile for libio.
	* stdio-common/vfscanf.c: Likewise.

Sat May 11 13:43:41 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* hurd/hurdfault.c: Include faultexc_server.h instead of faultexc.h.

	* mach/Machrules (%.ir rule): Don't produce deps for imports.

	* elf/dl-fini.c (_dl_fini): Clear L->l_init_called after calling fn.

	* Makerules (install): Depend on $(slibdir)/libc.so$(libc.so-version).
	[!subdir] ($(libdir)/libc.so, $(common-objpfx)/libc-syms.so): Protect
	these targets and install dep on $(libdir)/libc.so with this.

	* hurd/Makefile: Removed all rules and defns for using code from Hurd
	sources and installing headers from there.

	* sysdeps/mach/hurd/errnos.awk: Set in_mach_errors to FILENAME when we
 	set it.  In Mach error matching clause, only match if FILENAME is
 	still the same value.

	* sysdeps/mach/hurd/Makefile: Don't include sysdeps/mach/Makefile;
	$(mach-srcdir) no longer exists.
	(hurd-srcdir): Variable removed.
	(includes): Don't append -I$(hurd-srcdir).
	(last-includes): Variable removed.
	Remove vpath specs using $(hurd-srcdir).
	(mach-errno-h): New canned sequence.
	($(common-objpfx)errnos.d): New target, generated included makefile
	to determine absolute file names of Mach headers to search for error
	codes and set variable mach-errnos-deps.
	($(common-objpfx)stamp-errnos): Depend on $(mach-errnos-deps) instead
	of prior explicit list.
	(generated): Add errnos.d, stamp-errnos.

	* mach/Machrules (some-if-rtn): New variable and target; compute deps
	of some if routine and make all if routines depend on that .d file
	instead of static list of .h files.

	* mach/Makefile (mach/mach_interface.defs,
	mach/memory_object_user.defs): Targets removed.
	($(objpfx)mach-syscalls.mk): Tweak this kludge so it doesn't depend
	directly on Mach sources.

	* sysdeps/mach/Makefile (mach-srcdir): Variable removed.
	(includes): Don't append -I$(mach-srcdir).
	Remove vpath specs using $(mach-srcdir).

	* hurd/Makefile (server-interfaces): Add faultexc.
	(sig): Remove it from here.
	(fault%.[ch]): Rule removed.
	(MIGFLAGS-faultexc): New variable.

	* hurd/faultexc.defs: New file.

	* mach/Machrules (%.ustamp rule): Pass $(MIGFLAGS-$*) to mig.
	(%_server.[ch] rule): Likewise.

	* mach/Makefile: Removed all rules and defns for using code from Mach
	sources and installing headers from there.

	* Makeconfig [$(build-shared)=yes] (link-libc): Append
	$(libc.so-version) to libc.so.

	* mach/Machrules (%.ustamp rule): Don't depend on %.defs.
	(%.udeps): New rule parallel to that one, generating included
	makefiles with -M output from `#include <%.defs>'.

	* Makerules (sed-remove-objpfx): Remove space before \ at eol.

2 files changed, 36 insertions, 85 deletions

diff --git a/mach/Machrules b/mach/Machrules
index ef5809b86c..f7f6d2df63 100644
--- a/mach/Machrules
+++ b/mach/Machrules
@@ -81,19 +81,14 @@ endif
 # other useful pattern) causes the rule for `host_info' to also match
 # `xxx_host_info', and analogous lossage.
 #
-# While we're at it, we figure out the imports used by %.defs and give them
-# as dependencies of the object files for the generated RPC_*.c files.
-#
 # Depend on %.h just so they will be built from %.uh in the
 # makefile-rebuilding run which builds %.ir; otherwise, %.uh is built as an
 # intermediate in order to make %.ir and then removed before re-exec, when
 # %.uh is built all over again to build %.h.
 $(objpfx)%.ir: $(objpfx)%.uh $(objpfx)%.h
 	(awk "NF == 4 && (\$$2 == \"Routine\" || \$$2 == \"SimpleRoutine\")\
-	        { printf \"$*-calls += %s\\n\", \$$3 }	\
-	      /^#include/ { printf \"$*-imports += %s\\n\", \$$2 }" $<	;\
+	        { printf \"$*-calls += %s\\n\", \$$3 }" $<	;\
 	 echo '$$($*-calls:%=$$(objpfx)R\%C_%.c): $$(objpfx)$*.ustamp ;';\
-	 echo '$$($*-calls:%=$$(objpfx)RPC_%.o): $$($*-imports:<%>=%)'	;\
 	) > $@-new
 	mv $@-new $@
 vpath Machrules ../mach	# Find ourselves.
@@ -106,9 +101,12 @@ endef
 endif
 
 # Not an implicit rule so the stamps are never removed as intermediates!
-$(patsubst %,$(objpfx)%.ustamp,$(user-interfaces)): $(objpfx)%.ustamp: %.defs
-	$(MIG) $< $(MIGFLAGS) $(user-MIGFLAGS) \
-	       -prefix __ -i $(objpfx)tmp_ \
+$(patsubst %,$(objpfx)%.ustamp,$(user-interfaces)): $(objpfx)%.ustamp:
+	rm -f $@
+	echo '#include <$*.defs>' | \
+	$(MIG) - /dev/null -prefix __ \
+	       $(MIGFLAGS) $(user-MIGFLAGS) $(MIGFLAGS-$*) \
+	       -i $(objpfx)tmp_ \
 	       -server /dev/null -user /dev/null -header /dev/null
 	for call in $($*-calls); do \
 	  $(transform-user-stub) \
@@ -116,15 +114,24 @@ $(patsubst %,$(objpfx)%.ustamp,$(user-interfaces)): $(objpfx)%.ustamp: %.defs
 			    $(objpfx)RPC_$${call}.c; \
 	done
 	touch $@
+-include $(patsubst %,$(objpfx)%.udeps,$(user-interfaces))
+$(patsubst %,$(objpfx)%.udeps,$(user-interfaces)): $(objpfx)%.udeps:
+	echo '#include <$*.defs>' | \
+	$(CC) $(CPPFLAGS) -M -x c - | \
+	sed -e 's,- *:,$@ $(@:.udeps=.ustamp) \
+			  $(@:.udeps=_server.c) $(@:.udeps=_server.h):,' \
+	    $(sed-remove-objpfx) > $@.new
+	mv -f $@.new $@
 
 # Look for the server stub files where they will be written.
 vpath %_server.c $(addprefix $(objpfx),$(sort $(dir $(server-interfaces))))
 
 # Build the server stubs in $(objdir).
-$(objpfx)%_server.c $(objpfx)%_server.h: %.defs
-	$(MIG) $< $(MIGFLAGS) $(server-MIGFLAGS) \
-	       -prefix _S_ \
-	       -user /dev/null -header /dev/null \
+$(objpfx)%_server.c $(objpfx)%_server.h:
+	echo '#include <$*.defs>' | \
+	$(MIG) - /dev/null -prefix _S_ \
+	       $(MIGFLAGS) $(server-MIGFLAGS) $(MIGFLAGS-$*) \
+	       $< -user /dev/null -header /dev/null \
 	       -server $(@:.h=.c) -sheader $(@:.c=.h)
 
 # To get header files that declare both the straight and __ functions,
@@ -176,18 +183,14 @@ interface-headers: $(interface-headers)
 # dependencies ahead of time anyway because they're boilerplate.
 omit-deps += $(interface-routines)
 
-# Specify the static dependencies of the generated files.
-$(foreach o,$(object-suffixes),\
-$(foreach if,$(user-interfaces),$($(if)-calls:%=$(objpfx)RPC_%$o))): \
-    mach/boolean.h mach/kern_return.h mach/message.h mach/notify.h \
-    mach/mach_types.h mach/mig_errors.h mach/mig_support.h mach/msg_type.h \
-    $(..)libc-symbols.h $(objpfx)config.h
-$(foreach o,$(object-suffixes),\
-$(server-interfaces:%=$(objpfx)%$o)): \
-    mach/boolean.h mach/kern_return.h mach/message.h mach/mig_errors.h \
-    mach/mig_support.h mach/std_types.h
-# The MiG-generated sources also depend on the imports in their .defs files.
-# These dependencies are generated into the .ir files above.
+# Choose any single module generated by MiG.  We will compute this module's
+# dependencies and then assume all other MiG-generated modules depend on the
+# same headers.
+some-if-rtn := $(firstword $(interface-routines))
+ifdef some-if-rtn
+$(foreach o,$(object-suffixes),$(interfaces-routines:%=%$o)): $(some-if-rtn).d
+generated += $(some-if-rtn).d
+endif
 
 # If defined, $(interface-library) is `libNAME'.  It is to be a library
 # containing all the MiG-generated functions for the specified interfaces.
diff --git a/mach/Makefile b/mach/Makefile
index 747a6bfead..c4665c204c 100644
--- a/mach/Makefile
+++ b/mach/Makefile
@@ -57,57 +57,21 @@ distribute += Machrules syscalls.awk shortcut.awk \
 # Clear any environment	value.
 generated =
 
-# Get the proper definition of `mach-srcdir'.
-include ../sysdeps/mach/Makefile
-
-# Use and install the Mach header files directly out of the Mach kernel source.
-
-# Find the MiG defs files in the kernel source.
-vpath %.defs $(mach-srcdir)
-
-# Install all .h and .defs files we find in some of the kernel's source
-# directories and their subdirectories (in MK82, max one level deep).
-mach-src-headers := $(wildcard $(foreach dir,mach device mach_debug \
-					     $(base-machine),\
-					 $(addprefix $(mach-srcdir)/$(dir)/,\
-						     *.defs *.h \
-						     */*.defs */*.h)))
-# Exclude mach/machine/*.  A symlink will be installed for mach/machine.
-# Exclude $(headers) for Mach files we have our own versions of.
-mach-headers = $(filter-out mach/machine/% $(headers),\
-			    $(mach-src-headers:$(mach-srcdir)/%=%))
-# Rename Mach's sys/version.h to mach/version.h.
-mach-headers := $(patsubst sys/version.h,mach/version.h,$(mach-headers))
-
-# Don't distribute the Mach headers; they are in the Mach distribution.
-dont_distribute = $(mach-headers)
-
-# DO NOT try to remake these in any way!!!
-$(addprefix $(mach-srcdir)/,$(mach-headers)) : ;
-install-others += $(addprefix $(includedir)/,$(mach-headers))
-$(includedir)/%: $(mach-srcdir)/%; $(do-install)
-
-# Make symlinks for machine and mach/machine in the include directory.
-install-others += $(includedir)/mach/machine $(includedir)/machine
-$(includedir)/mach/machine $(includedir)/machine: $(common-objpfx)config.make
-	-rm -f $@
-	cd $(@D); ln -s $(base-machine) $(@F)
-
-# Install Mach's <sys/version.h> as <mach/version.h>.
-install-others += $(includedir)/mach/version.h
-$(includedir)/mach/version.h: $(mach-srcdir)/sys/version.h; $(do-install)
-
 # Define mach-syscalls and sysno-*.
 ifndef no_deps
 ifndef inhibit_mach_syscalls
 include $(objpfx)mach-syscalls.mk
 endif
 endif
-$(objpfx)mach-syscalls.mk: mach/syscall_sw.h syscalls.awk
+$(objpfx)mach-syscalls.mk: syscalls.awk Makefile
 # Go kludges!!!
-	sed -n -e '/Unix server implement them/,$$d' \
-	       -e 's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
-	< $< | awk -f $(word 2,$^) > $@-new
+	echo '#include <mach/syscall_sw.h>' | \
+	DEPENDENCIES_OUTPUT='$@-dep $@' \
+	$(CC) $(CPPFLAGS) -E -x c-header - \
+	      -D_MACH_`echo $(base-machine) | tr a-z A-Z`_SYSCALL_SW_H_=1 | \
+	sed -n -e 's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
+	| awk -f $< > $@-new
+	cat $@-dep >> $@-new; rm -f $@-dep
 	mv $@-new $@
 generated += mach-syscalls.mk
 
@@ -170,22 +134,6 @@ include Machrules
 include ../Rules
 
 
-# There is already a mach.h, so mach.defs generates mach_interface.h.
-$(objpfx)mach/mach_interface.defs: $(mach-srcdir)/mach/mach.defs
-	ln $< $@ || cp $< $@
-# There is already a memory_object.h,
-# so memory_object.defs generates memory_object_user.h.
-$(objpfx)mach/memory_object_user.defs: $(mach-srcdir)/mach/memory_object.defs
-	ln $< $@ || cp $< $@
-
-ifdef objdir
-vpath mach/mach_interface.defs $(objdir)
-vpath mach/memory_object_user.defs $(objdir)
-endif
-
-# Be sure not to make these with implicit rules from foo.defs.
-mach.h mach/memory_object.h: ;
-
 # A gcc bug prevents the generated file from working properly,
 # so we have one in the distribution for the time being.
 generated += errsystems.c