mach/Makefile

   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.
   4
   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.
   9
  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.
  14
  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
  18 # 02111-1307 USA.
  19
  20 subdir := mach
  21
  22 all:
  23
  24 # Some things below (but before including Rules) use configuration variables.
  25 include ../Makeconfig
  26
  27
  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)
  40
  41 # The RPC interfaces go in a separate library.
  42 interface-library := libmachuser
  43
  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
  48
  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
  53
  54 user-interfaces := $(addprefix mach/,$(mach-interface-list)     \
  55                                      mach_port mach_host exc    \
  56                     )\
  57                    $(addprefix device/,device device_request)
  58
  59 server-interfaces := mach/exc
  60
  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
  66
  67 # Clear any environment value.
  68 generated =
  69 \f
  70 # Translate GNU names for CPUs into the names used in Mach header files.
  71 mach-machine = $(patsubst powerpc,ppc,$(base-machine))
  72
  73 # Define mach-syscalls and sysno-*.
  74 ifndef inhibit_mach_syscalls
  75 -include $(objpfx)mach-syscalls.mk
  76 endif
  77 $(objpfx)mach-syscalls.mk: syscalls.awk Makefile
  78 # Go kludges!!!
  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 $@ \
  83               -x c-header - \
  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 $< > $@-new
  87 ifneq (,$(objpfx))
  88         sed $(sed-remove-objpfx) $@-dep >> $@-new
  89 else
  90         cat $@-dep >> $@-new
  91 endif
  92         rm -f $@-dep
  93         mv -f $@-new $@
  94 generated += mach-syscalls.mk
  95
  96 ifndef mach-syscalls
  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.
  99 no_deps=t
 100 else
 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
 105          mv -f $@-new $@
 106 generated += $(mach-syscalls:=.S)
 107 endif   # mach-syscalls
 108
 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 \
 113                                vm_read_overwrite \
 114                                thread_switch \
 115                                ,\
 116                   $(patsubst syscall_%,%,$(filter syscall_%,$(mach-syscalls))))
 117
 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,\
 125                                 $(user-interfaces))
 126 endif
 127
 128 # For some reason, the calls in this file are `protected' by an ifdef.
 129 MIGFLAGS-mach/mach4=-DMACH_PCSAMPLE
 130
 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
 135
 136 ifdef mach-shortcuts
 137 $(mach-shortcuts:%=$(objpfx)%.c): $(objpfx)%.c: shortcut.awk \
 138                                                 $(objpfx)RPC_%_rpc.c
 139         $(AWK)  -v alias=$* -v call=__$* -v rpc=__$*_rpc \
 140                 -v syscall=__syscall_$* -f $^ > $@-new
 141         mv -f $@-new $@
 142 generated += $(mach-shortcuts:%=%.c)
 143 endif   # mach-shortcuts
 144
 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
 156         mv -f $@-new $@
 157 generated += mach-shortcuts.h
 158
 159 before-compile += $(objpfx)mach-shortcuts.h
 160 \f
 161 include Machrules
 162 include ../Rules
 163
 164
 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
 171         mv -f $@.n $@
 172
 173
 174 # Convenient target to update all the generated source files.
 175 .PHONY: generated
 176 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 177            $(addprefix $(objpfx),$(generated))
 178
 179 .PHONY: mach-before-compile
 180 mach-before-compile: $(mach-before-compile)