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Languguage OS 2
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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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glibc108.zip
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glibc108
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mach
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Machrules
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1994-04-27
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# Rules for MiG interfaces that want to go into the C library.
# Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License
# as published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If
# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
# Cambridge, MA 02139, USA.
# Makefiles may define these variable before including this file:
# user-interfaces Names of interfaces to put user stubs in for.
# server-interfaces Names of interfaces to put server stubs in for.
# interface-library Name of interface library to build and install.
# This file sets:
# interface-headers Names of generated interface header files.
# interface-routines Names of generated interface routines.
# All user stubs are put in individual files, prefixed with RPC_ (and the
# function names prefixed with __), and a symbol-alias to the un-__'d form
# generated; header for both is put in foo.h. Server interfaces are
# written to foo_server.c and foo_server.h; the server functions are called
# _S_rpcname.
# Includers can also add to or modify `migdefines' to set MiG flags.
all:
# Make sure no value comes from the environment, since we append to it.
# This is done also in ../Rules, but we append to the value before
# including Rules, which changes the origin.
ifneq "$(findstring env,$(origin generated))" ""
generated :=
endif
include ../Makeconfig
ifndef MIG
MIG = mig
endif
MIGFLAGS = -DMACH_IPC_COMPAT=0 -DSTANDALONE -DTypeCheck=0 \
$(+includes) $(migdefines) -subrprefix __
.SUFFIXES: .defs # Just to set specified_rule_matched.
define nl # This is needed by *.ir.
endef
ifdef user-interfaces
*.ir := $(addprefix $(objpfx),$(foreach if,$(user-interfaces),$(if).ir))
ifndef inhibit_interface_rules
include $(*.ir)
endif
ifneq "$(*.ir)" "$(wildcard $(*.ir))"
# If any .ir file is missing, we will be unable to make all the deps.
no_deps=t
endif
generated += $(*.ir:$(objpfx)%=%)
endif
# %.ir defines a variable `%-calls', which lists the RPCs defined by
# %.defs, and a rule to build $(%-calls:%=RPC_$(%-userprefix)%.c) from
# %.defs, where $(%-userprefix) is the user prefix given in %.defs. We use
# the kludgificacious method of defining a pattern rule to build files
# matching patterns we are pretty damn sure will only match the particular
# files we have in mind. To be so damn sure, we use the silly names
# RPC_*.c and the pattern R%C_*.c because using __*.c and _%*.c (or any
# 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 $(objpfx)%.h
(awk "/^kern_return_t/ { printf \"$*-calls += %s\\n\", \$$2 } \
/^#include/ { printf \"$*-imports += %s\\n\", \$$2 }" $< ;\
echo '$$($*-calls:%=$$(objpfx)R\%C_%.c): $$(objpfx)$*.ustamp ;';\
echo '$$($*-calls:%=$$(objpfx)RPC_%.o): $$($*-imports:<%>=%)' ;\
) > $@-new
mv $@-new $@
vpath Machrules ../mach # Find ourselves.
# 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_ \
-server /dev/null -user /dev/null -header /dev/null
for call in $($*-calls); do \
../move-if-change $(objpfx)tmp_$${call}.c $(objpfx)RPC_$${call}.c; \
done
touch $@
# 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 \
-server $(@:.h=.c) -sheader $(@:.c=.h)
# To get header files that declare both the straight and __ functions,
# we generate two files and paste them together.
$(objpfx)%.uh: %.defs; $(mig.uh)
define mig.uh
$(make-target-directory)
$(MIG) $< $(MIGFLAGS) \
-header $@ -server /dev/null -user /dev/null
endef
$(objpfx)%.__h: %.defs; $(mig.__h)
define mig.__h
$(make-target-directory)
$(MIG) $< $(MIGFLAGS) -prefix __ \
-header $@ -server /dev/null -user /dev/null
endef
$(objpfx)%.h: $(objpfx)%.__h $(objpfx)%.uh
# The last line of foo.__h is "#endif _foo_user_".
# The first two lines of foo.uh are "#ifndef _foo_user_"/"#define _foo_user_".
(sed -e '$$d' $<; sed -e '1,2d' $(word 2,$^)) > $@-new
mv $@-new $@
if-calls.c := $(strip $(foreach if,$(user-interfaces),$($(if)-calls:%=%.c)))
ifdef if-calls.c
$(addprefix $(objpfx),$(if-calls.c)): $(objpfx)%.c: # Machrules
(echo '#include <gnu-stabs.h>'; \
echo 'symbol_alias (__$*, $*);') > $@-new
mv $@-new $@
endif
interface-routines := $(foreach if,$(user-interfaces), \
$($(if)-calls) \
$(addprefix RPC_,$($(if)-calls))) \
$(server-interfaces:%=%_server)
interface-headers := $(user-interfaces:%=%.h) \
$(server-interfaces:%=%_server.h)
# Remove the generated user stub source and header files,
# and don't distribute them.
mach-generated = $(interface-routines:%=%.c) \
$(foreach h,$(interface-headers:%.h=%),$h.h $h.uh $h.__h)
generated += $(mach-generated)
# These are needed to generate the dependencies.
before-compile += $(interface-headers:%=$(objpfx)%)
# Don't let these be intermediate files and get removed.
$(foreach h,$(interface-headers:%.h=$(objpfx)%),$h.h $h.__h $h.uh) :
$(interface-routines:%=$(objpfx)%.c) :
# Convenient target to generate all the headers.
.PHONY: interface-headers
interface-headers: $(interface-headers)
# Don't automatically generate dependencies for the sources we generate.
# There are likely to be a whole lot of them, and we know their
# dependencies ahead of time anyway because they're boilerplate.
omit-deps += $(interface-routines)
# Specify the static dependencies of the generated files.
$(foreach if,$(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
$(foreach if,$(user-interfaces),$($(if)-calls:%=$(objpfx)%.o)): ../gnu-stabs.h
$(server-interfaces:%=$(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.
# If defined, $(interface-library) is `libNAME.a'. It is to be a library
# containing all the MiG-generated functions for the specified interfaces.
ifdef interface-library
$(interface-library)-objs := $(interface-routines:%=%.o)
install-lib += $(interface-library)
extra-objs += $($(interface-library)-objs)
$(objpfx)$(interface-library): $(addprefix $(objpfx),\
$($(interface-library)-objs))
ifdef objdir
cd $(objdir); $(AR) cru$(verbose) $(@:$(objpfx)%=%) $(^:$(objpfx)%=%)
else
$(AR) cru$(verbose) $@ $^
endif
$(RANLIB) $@
lib-noranlib: $(objpfx)$(interface-library)
mostlyclean:
-rm -f $(objpfx)$(interface-library)
endif