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: ^L 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: ^L 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)