1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
# Copyright (C) 1991,92,93,94,95,96,97,98,2001,02,12
# 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 Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <http://www.gnu.org/licenses/>.
subdir := mach
all:
# Some things below (but before including Rules) use configuration variables.
include ../Makeconfig
headers = mach_init.h mach.h mach_error.h mach-shortcuts.h mach/mach_traps.h \
$(interface-headers) mach/mach.h mach/mig_support.h mach/error.h \
$(lock-headers) machine-sp.h
lock = spin-solid spin-lock mutex-init mutex-solid
lock-headers = lock-intern.h machine-lock.h spin-lock.h
routines = $(mach-syscalls) $(mach-shortcuts) \
mach_init mig_strncpy msg \
mig-alloc mig-dealloc mig-reply \
msg-destroy msgserver \
mach_error errstring error_compat errsystems \
devstream setup-thread $(lock)
# The RPC interfaces go in a separate library.
interface-library := libmachuser
# We produce mach_interface.h from mach.defs because there is already a
# <mach/mach.h> that is not the interface header (thanks CMU).
mach-interface-list := $(patsubst mach,mach_interface,$(mach-interface-list))
mach/mach_interface.defs = mach/mach.defs
# Similarly for memory_object_user vs. memory_object
mach-interface-list := $(patsubst memory_object,memory_object_user,\
$(mach-interface-list))
mach/memory_object_user.defs = mach/memory_object.defs
user-interfaces := $(addprefix mach/,$(mach-interface-list) \
mach_port mach_host exc \
)\
$(addprefix device/,device device_request)
server-interfaces := mach/exc
# Clear any environment value.
generated =
# Translate GNU names for CPUs into the names used in Mach header files.
mach-machine = $(patsubst powerpc,ppc,$(base-machine))
# Define mach-syscalls and sysno-*.
ifndef inhibit_mach_syscalls
-include $(objpfx)mach-syscalls.mk
endif
$(objpfx)mach-syscalls.mk: syscalls.awk Makefile
# Go kludges!!!
$(make-target-directory)
# We must use $(CFLAGS) to get -O flags that affect #if's in header files.
echo '#include <mach/syscall_sw.h>' | \
$(CC) $(CFLAGS) $(CPPFLAGS) -E -MD -MP -MF $@-dep -MT $@ \
-x c-header - \
-D_MACH_`echo $(mach-machine) | tr a-z A-Z`_SYSCALL_SW_H_=1 | \
sed -n -e 's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
| $(AWK) -f $< > $@-new
ifneq (,$(objpfx))
sed $(sed-remove-objpfx) $@-dep >> $@-new
else
cat $@-dep >> $@-new
endif
rm -f $@-dep
mv -f $@-new $@
generated += mach-syscalls.mk
ifndef mach-syscalls
# We cannot make the deps properly until we know how to make the system
# call functions, and for that we must know what they all are.
no_deps=t
else
$(mach-syscalls:%=$(objpfx)%.S): $(objpfx)%.S: $(objpfx)mach-syscalls.mk
(echo '#include <sysdep.h>'; \
echo 'kernel_trap (__$*,$(sysno-$*),$(nargs-$*))'; \
echo 'weak_alias (__$*, $*)') > $@-new
mv -f $@-new $@
generated += $(mach-syscalls:=.S)
endif # mach-syscalls
# These syscalls that look like RPCs actually have no RPC equivalents.
mach-shortcuts := $(filter-out device_writev_request \
device_read_overwrite_request \
device_read_overwrite \
vm_read_overwrite \
thread_switch \
,\
$(patsubst syscall_%,%,$(filter syscall_%,$(mach-syscalls))))
ifndef mach-shortcuts
# Forget about mach_interface.defs for this run. On the next run,
# $(mach-shortcuts) will be set, and that will change how
# mach_interface.defs is processed: it will get the -D flags below.
user-interfaces := $(filter-out $(mach-interface-list:%=mach/%) \
mach/mach_port mach/mach_host mach/mach4 \
device/device_request,\
$(user-interfaces))
endif
# For some reason, the calls in this file are `protected' by an ifdef.
MIGFLAGS-mach/mach4=-DMACH_PCSAMPLE
# Make the MiG stubs for $(mach-shortcuts) be CALL_rpc.
migdefines += $(foreach call,$(mach-shortcuts),-D$(call)=$(call)_rpc)
$(mach-interface-list:%=mach/%.uh) \
mach/mach_host.uh mach/mach_port.uh: $(objpfx)mach-syscalls.mk
ifdef mach-shortcuts
$(mach-shortcuts:%=$(objpfx)%.c): $(objpfx)%.c: shortcut.awk \
$(objpfx)RPC_%_rpc.c
$(AWK) -v alias=$* -v call=__$* -v rpc=__$*_rpc \
-v syscall=__syscall_$* -f $^ > $@-new
mv -f $@-new $@
generated += $(mach-shortcuts:%=%.c)
endif # mach-shortcuts
# Generate mach-shortcuts.h, which will contain the prototypes for the
# shortcutted kernel RPC functions.
$(objpfx)mach-shortcuts.h: $(mach-interface-list:%=$(objpfx)mach/%.h) \
$(objpfx)mach/mach_host.h \
$(objpfx)mach/mach_port.h
# The first line gets us one paragraph per line, with @s separating real lines.
# The second line selects paragraphs for the shortcutted functions.
# The third line removes `_rpc' from the names and reconstitutes the lines.
cat $^ | tr \\012 @ | sed s/@@/@%/g | tr % \\012 \
| grep '^/\* Routine [a-z0-9_]*_rpc \*/' \
| sed 's/_rpc//g' | tr @ \\012 > $@-new
mv -f $@-new $@
generated += mach-shortcuts.h
before-compile += $(objpfx)mach-shortcuts.h
include Machrules
include ../Rules
# A gcc bug prevents the generated file from working properly,
# so we have one in the distribution for the time being.
generated += errsystems.c
$(objpfx)errsystems.c: errsystems.awk err_*.sub \
$(wildcard $(addsuffix /err_*.sub,$(+sysdep_dirs)))
$(AWK) -v subsys='$(filter-out $<,$^)' -f $^ > $@.n
mv -f $@.n $@
# Convenient target to update all the generated source files.
.PHONY: generated
generated: $(addprefix $(common-objpfx),$(common-generated)) \
$(addprefix $(objpfx),$(generated))
.PHONY: mach-before-compile
mach-before-compile: $(mach-before-compile)
|
GitWeb