1 # Copyright (C) 1991,92,93,94,95,96,97,98,2001,02
2 # Free Software Foundation, Inc.
3 # This file is part of the GNU C Library.
5 # The GNU C Library is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU Lesser General Public
7 # License as published by the Free Software Foundation; either
8 # version 2.1 of the License, or (at your option) any later version.
10 # The GNU C Library is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # Lesser General Public License for more details.
15 # You should have received a copy of the GNU Lesser General Public
16 # License along with the GNU C Library; if not, write to the Free
17 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 # Some things below (but before including Rules) use configuration variables.
28 headers = mach_init.h mach.h mach_error.h mach-shortcuts.h mach/mach_traps.h \
29 $(interface-headers) mach/mach.h mach/mig_support.h mach/error.h \
30 $(lock-headers) machine-sp.h
31 distribute = thread_state.h
32 lock = spin-solid spin-lock mutex-init mutex-solid
33 lock-headers = lock-intern.h machine-lock.h spin-lock.h
34 routines = $(mach-syscalls) $(mach-shortcuts) \
35 mach_init mig_strncpy msg \
36 mig-alloc mig-dealloc mig-reply \
37 msg-destroy msgserver \
38 mach_error errstring error_compat errsystems \
39 devstream setup-thread $(lock)
41 # The RPC interfaces go in a separate library.
42 interface-library := libmachuser
44 # We produce mach_interface.h from mach.defs because there is already a
45 # <mach/mach.h> that is not the interface header (thanks CMU).
46 mach-interface-list := $(patsubst mach,mach_interface,$(mach-interface-list))
47 mach/mach_interface.defs = mach/mach.defs
49 # Similarly for memory_object_user vs. memory_object
50 mach-interface-list := $(patsubst memory_object,memory_object_user,\
51 $(mach-interface-list))
52 mach/memory_object_user.defs = mach/memory_object.defs
54 user-interfaces := $(addprefix mach/,$(mach-interface-list) \
55 mach_port mach_host exc \
57 $(addprefix device/,device device_request)
59 server-interfaces := mach/exc
61 # It is important that we do not use the wildcard function to expand
62 # `err_*.sub'. Leaving the wildcard allows Make-dist to find all matching
63 # files in all sysdep directories.
64 distribute += Machrules syscalls.awk shortcut.awk \
65 errorlib.h err_*.sub errsystems.awk
67 # Clear any environment value.
70 # Translate GNU names for CPUs into the names used in Mach header files.
71 mach-machine = $(patsubst powerpc,ppc,$(base-machine))
73 # Define mach-syscalls and sysno-*.
74 ifndef inhibit_mach_syscalls
75 -include $(objpfx)mach-syscalls.mk
77 $(objpfx)mach-syscalls.mk: syscalls.awk Makefile
79 $(make-target-directory)
80 # We must use $(CFLAGS) to get -O flags that affect #if's in header files.
81 echo '#include <mach/syscall_sw.h>' | \
82 $(CC) $(CFLAGS) $(CPPFLAGS) -E -MD -MP -MF $@-dep -MT $@ \
84 -D_MACH_`echo $(mach-machine) | tr a-z A-Z`_SYSCALL_SW_H_=1 | \
85 sed -n -e 's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
86 | $(AWK) -f $< > $@-new
88 sed $(sed-remove-objpfx) $@-dep >> $@-new
94 generated += mach-syscalls.mk
97 # We cannot make the deps properly until we know how to make the system
98 # call functions, and for that we must know what they all are.
101 $(mach-syscalls:%=$(objpfx)%.S): $(objpfx)%.S: $(objpfx)mach-syscalls.mk
102 (echo '#include <sysdep.h>'; \
103 echo 'kernel_trap (__$*,$(sysno-$*),$(nargs-$*))'; \
104 echo 'weak_alias (__$*, $*)') > $@-new
106 generated += $(mach-syscalls:=.S)
107 endif # mach-syscalls
109 # These syscalls that look like RPCs actually have no RPC equivalents.
110 mach-shortcuts := $(filter-out device_writev_request \
111 device_read_overwrite_request \
112 device_read_overwrite \
116 $(patsubst syscall_%,%,$(filter syscall_%,$(mach-syscalls))))
118 ifndef mach-shortcuts
119 # Forget about mach_interface.defs for this run. On the next run,
120 # $(mach-shortcuts) will be set, and that will change how
121 # mach_interface.defs is processed: it will get the -D flags below.
122 user-interfaces := $(filter-out $(mach-interface-list:%=mach/%) \
123 mach/mach_port mach/mach_host mach/mach4 \
124 device/device_request,\
128 # For some reason, the calls in this file are `protected' by an ifdef.
129 MIGFLAGS-mach/mach4=-DMACH_PCSAMPLE
131 # Make the MiG stubs for $(mach-shortcuts) be CALL_rpc.
132 migdefines += $(foreach call,$(mach-shortcuts),-D$(call)=$(call)_rpc)
133 $(mach-interface-list:%=mach/%.uh) \
134 mach/mach_host.uh mach/mach_port.uh: $(objpfx)mach-syscalls.mk
137 $(mach-shortcuts:%=$(objpfx)%.c): $(objpfx)%.c: shortcut.awk \
139 $(AWK) -v alias=$* -v call=__$* -v rpc=__$*_rpc \
140 -v syscall=__syscall_$* -f $^ > $@-new
142 generated += $(mach-shortcuts:%=%.c)
143 endif # mach-shortcuts
145 # Generate mach-shortcuts.h, which will contain the prototypes for the
146 # shortcutted kernel RPC functions.
147 $(objpfx)mach-shortcuts.h: $(mach-interface-list:%=$(objpfx)mach/%.h) \
148 $(objpfx)mach/mach_host.h \
149 $(objpfx)mach/mach_port.h
150 # The first line gets us one paragraph per line, with @s separating real lines.
151 # The second line selects paragraphs for the shortcutted functions.
152 # The third line removes `_rpc' from the names and reconstitutes the lines.
153 cat $^ | tr \\012 @ | sed s/@@/@%/g | tr % \\012 \
154 | grep '^/\* Routine [a-z0-9_]*_rpc \*/' \
155 | sed 's/_rpc//g' | tr @ \\012 > $@-new
157 generated += mach-shortcuts.h
159 before-compile += $(objpfx)mach-shortcuts.h
165 # A gcc bug prevents the generated file from working properly,
166 # so we have one in the distribution for the time being.
167 generated += errsystems.c
168 $(objpfx)errsystems.c: errsystems.awk err_*.sub \
169 $(wildcard $(addsuffix /err_*.sub,$(+sysdep_dirs)))
170 $(AWK) -v subsys='$(filter-out $<,$^)' -f $^ > $@.n
174 # Convenient target to update all the generated source files.
176 generated: $(addprefix $(common-objpfx),$(common-generated)) \
177 $(addprefix $(objpfx),$(generated))
179 .PHONY: mach-before-compile
180 mach-before-compile: $(mach-before-compile)