mach/Makefile

   1 # Copyright (C) 1991,92,93,94,95,96,97,98,2001,02,12
   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, see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 subdir := mach
  20
  21 all:
  22
  23 # Some things below (but before including Rules) use configuration variables.
  24 include ../Makeconfig
  25
  26
  27 headers = mach_init.h mach.h mach_error.h mach-shortcuts.h mach/mach_traps.h \
  28           $(interface-headers) mach/mach.h mach/mig_support.h mach/error.h \
  29           $(lock-headers) machine-sp.h
  30 lock = spin-solid spin-lock mutex-init mutex-solid
  31 lock-headers = lock-intern.h machine-lock.h spin-lock.h
  32 routines = $(mach-syscalls) $(mach-shortcuts) \
  33            mach_init mig_strncpy msg \
  34            mig-alloc mig-dealloc mig-reply \
  35            msg-destroy msgserver \
  36            mach_error errstring error_compat errsystems \
  37            devstream setup-thread $(lock)
  38
  39 # The RPC interfaces go in a separate library.
  40 interface-library := libmachuser
  41
  42 # We produce mach_interface.h from mach.defs because there is already a
  43 # <mach/mach.h> that is not the interface header (thanks CMU).
  44 mach-interface-list := $(patsubst mach,mach_interface,$(mach-interface-list))
  45 mach/mach_interface.defs = mach/mach.defs
  46
  47 # Similarly for memory_object_user vs. memory_object
  48 mach-interface-list := $(patsubst memory_object,memory_object_user,\
  49                                   $(mach-interface-list))
  50 mach/memory_object_user.defs = mach/memory_object.defs
  51
  52 user-interfaces := $(addprefix mach/,$(mach-interface-list)     \
  53                                      mach_port mach_host exc    \
  54                     )\
  55                    $(addprefix device/,device device_request)
  56
  57 server-interfaces := mach/exc
  58
  59 # Clear any environment value.
  60 generated =
  61 \f
  62 # Translate GNU names for CPUs into the names used in Mach header files.
  63 mach-machine = $(patsubst powerpc,ppc,$(base-machine))
  64
  65 # Define mach-syscalls and sysno-*.
  66 ifndef inhibit_mach_syscalls
  67 -include $(objpfx)mach-syscalls.mk
  68 endif
  69 $(objpfx)mach-syscalls.mk: syscalls.awk Makefile
  70 # Go kludges!!!
  71         $(make-target-directory)
  72 # We must use $(CFLAGS) to get -O flags that affect #if's in header files.
  73         echo '#include <mach/syscall_sw.h>' | \
  74         $(CC) $(CFLAGS) $(CPPFLAGS) -E -MD -MP -MF $@-dep -MT $@ \
  75               -x c-header - \
  76               -D_MACH_`echo $(mach-machine) | tr a-z A-Z`_SYSCALL_SW_H_=1 | \
  77         sed -n -e 's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
  78         | $(AWK) -f $< > $@-new
  79 ifneq (,$(objpfx))
  80         sed $(sed-remove-objpfx) $@-dep >> $@-new
  81 else
  82         cat $@-dep >> $@-new
  83 endif
  84         rm -f $@-dep
  85         mv -f $@-new $@
  86 generated += mach-syscalls.mk
  87
  88 ifndef mach-syscalls
  89 # We cannot make the deps properly until we know how to make the system
  90 # call functions, and for that we must know what they all are.
  91 no_deps=t
  92 else
  93 $(mach-syscalls:%=$(objpfx)%.S): $(objpfx)%.S: $(objpfx)mach-syscalls.mk
  94         (echo '#include <sysdep.h>'; \
  95          echo 'kernel_trap (__$*,$(sysno-$*),$(nargs-$*))'; \
  96          echo 'weak_alias (__$*, $*)') > $@-new
  97          mv -f $@-new $@
  98 generated += $(mach-syscalls:=.S)
  99 endif   # mach-syscalls
 100
 101 # These syscalls that look like RPCs actually have no RPC equivalents.
 102 mach-shortcuts := $(filter-out device_writev_request \
 103                                device_read_overwrite_request \
 104                                device_read_overwrite \
 105                                vm_read_overwrite \
 106                                thread_switch \
 107                                ,\
 108                   $(patsubst syscall_%,%,$(filter syscall_%,$(mach-syscalls))))
 109
 110 ifndef mach-shortcuts
 111 # Forget about mach_interface.defs for this run.  On the next run,
 112 # $(mach-shortcuts) will be set, and that will change how
 113 # mach_interface.defs is processed: it will get the -D flags below.
 114 user-interfaces := $(filter-out $(mach-interface-list:%=mach/%) \
 115                                 mach/mach_port mach/mach_host mach/mach4 \
 116                                 device/device_request,\
 117                                 $(user-interfaces))
 118 endif
 119
 120 # For some reason, the calls in this file are `protected' by an ifdef.
 121 MIGFLAGS-mach/mach4=-DMACH_PCSAMPLE
 122
 123 # Make the MiG stubs for $(mach-shortcuts) be CALL_rpc.
 124 migdefines += $(foreach call,$(mach-shortcuts),-D$(call)=$(call)_rpc)
 125 $(mach-interface-list:%=mach/%.uh) \
 126   mach/mach_host.uh mach/mach_port.uh: $(objpfx)mach-syscalls.mk
 127
 128 ifdef mach-shortcuts
 129 $(mach-shortcuts:%=$(objpfx)%.c): $(objpfx)%.c: shortcut.awk \
 130                                                 $(objpfx)RPC_%_rpc.c
 131         $(AWK)  -v alias=$* -v call=__$* -v rpc=__$*_rpc \
 132                 -v syscall=__syscall_$* -f $^ > $@-new
 133         mv -f $@-new $@
 134 generated += $(mach-shortcuts:%=%.c)
 135 endif   # mach-shortcuts
 136
 137 # Generate mach-shortcuts.h, which will contain the prototypes for the
 138 # shortcutted kernel RPC functions.
 139 $(objpfx)mach-shortcuts.h: $(mach-interface-list:%=$(objpfx)mach/%.h) \
 140                            $(objpfx)mach/mach_host.h \
 141                            $(objpfx)mach/mach_port.h
 142 # The first line gets us one paragraph per line, with @s separating real lines.
 143 # The second line selects paragraphs for the shortcutted functions.
 144 # The third line removes `_rpc' from the names and reconstitutes the lines.
 145         cat $^ | tr \\012 @ | sed s/@@/@%/g | tr % \\012 \
 146         | grep '^/\* Routine [a-z0-9_]*_rpc \*/' \
 147         | sed 's/_rpc//g' | tr @ \\012 > $@-new
 148         mv -f $@-new $@
 149 generated += mach-shortcuts.h
 150
 151 before-compile += $(objpfx)mach-shortcuts.h
 152 \f
 153 include Machrules
 154 include ../Rules
 155
 156
 157 # A gcc bug prevents the generated file from working properly,
 158 # so we have one in the distribution for the time being.
 159 generated += errsystems.c
 160 $(objpfx)errsystems.c: errsystems.awk err_*.sub \
 161                        $(wildcard $(addsuffix /err_*.sub,$(+sysdep_dirs)))
 162         $(AWK) -v subsys='$(filter-out $<,$^)' -f $^ > $@.n
 163         mv -f $@.n $@
 164
 165
 166 # Convenient target to update all the generated source files.
 167 .PHONY: generated
 168 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 169            $(addprefix $(objpfx),$(generated))
 170
 171 .PHONY: mach-before-compile
 172 mach-before-compile: $(mach-before-compile)