1 # Copyright (C) 1991-2023 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, see
16 # <https://www.gnu.org/licenses/>.
22 headers
= mach_init.h mach.h mach_error.h mach-shortcuts.h mach
/mach_traps.h \
23 $(interface-headers
) mach
/mach.h mach
/mig_support.h mach
/error.h \
24 $(lock-headers
) machine-sp.h bits
/mach
/param.h
25 lock
= spin-solid spin-lock mutex-init mutex-solid
26 lock-headers
= lock-intern.h spin-lock.h
27 routines
= $(mach-syscalls
) $(mach-shortcuts
) \
28 mach_init mig_strncpy mig_strlen mig_memcpy msg \
29 mig-alloc mig-dealloc mig-reply \
30 msg-destroy msgserver \
31 mach_error errstring error_compat errsystems \
32 devstream setup-thread
$(lock
)
34 # The RPC interfaces go in a separate library.
35 interface-library
:= libmachuser
37 # We produce mach_interface.h from mach.defs because there is already a
38 # <mach/mach.h> that is not the interface header (thanks CMU).
39 mach-interface-list
:= $(patsubst mach
,mach_interface
,$(mach-interface-list
))
40 mach
/mach_interface.defs
= mach
/mach.defs
42 # Similarly for memory_object_user vs. memory_object
43 mach-interface-list
:= $(patsubst memory_object
,memory_object_user
,\
44 $(mach-interface-list
))
45 mach
/memory_object_user.defs
= mach
/memory_object.defs
47 user-interfaces
:= $(addprefix mach
/,$(mach-interface-list
) \
48 mach_port mach_host exc \
50 $(addprefix device
/,device device_request
)
52 server-interfaces
:= mach
/exc
54 # Clear any environment value.
57 # Avoid ssp before TLS is initialized.
58 CFLAGS-mach_init.o
= $(no-stack-protector
)
59 CFLAGS-RPC_vm_statistics.o
= $(no-stack-protector
)
60 CFLAGS-RPC_vm_map.o
= $(no-stack-protector
)
61 CFLAGS-RPC_vm_protect.o
= $(no-stack-protector
)
62 CFLAGS-RPC_i386_set_gdt.o
= $(no-stack-protector
)
63 CFLAGS-RPC_i386_set_ldt.o
= $(no-stack-protector
)
64 CFLAGS-RPC_task_get_special_port.o
= $(no-stack-protector
)
65 CFLAGS-RPC_thread_set_state.o
= $(no-stack-protector
)
67 # Translate GNU names for CPUs into the names used in Mach header files.
68 mach-machine
= $(patsubst powerpc
,ppc
,$(base-machine
))
70 # Define mach-syscalls and sysno-*.
71 ifndef inhibit_mach_syscalls
72 -include $(objpfx
)mach-syscalls.mk
74 $(objpfx
)mach-syscalls.mk
: syscalls.awk Makefile libc-modules.h
76 $(make-target-directory
)
77 # We must use $(CFLAGS) to get -O flags that affect #if's in header files.
78 echo
'#include <mach/syscall_sw.h>' | \
79 $(CC
) $(CFLAGS
) $(CPPFLAGS
) -E
-MD
-MP
-MF
$@
-dep
-MT
$@ \
81 -D_MACH_
`echo $(mach-machine) | tr a-z A-Z`_SYSCALL_SW_H_
=1 | \
82 sed
-n
-e
's/^kernel_trap(\(.*\),\([-0-9]*\),\([0-9]*\))$$/\1 \2 \3/p'\
83 |
$(AWK
) -f
$< > $@
-new
85 sed
$(sed-remove-objpfx
) $@
-dep
>> $@
-new
91 generated
+= mach-syscalls.mk
94 # We cannot make the deps properly until we know how to make the system
95 # call functions, and for that we must know what they all are.
98 $(mach-syscalls
:%=$(objpfx
)%.S
): $(objpfx
)%.S
: $(objpfx
)mach-syscalls.mk
99 (echo
'#include <sysdep.h>'; \
100 echo
'kernel_trap (__$*,$(sysno-$*),$(nargs-$*))'; \
101 echo
'weak_alias (__$*, $*)'; \
102 echo
'libc_hidden_def (__$*)') > $@
-new
104 generated
+= $(mach-syscalls
:=.S
)
105 endif # mach-syscalls
107 # These syscalls that look like RPCs actually have no RPC equivalents.
108 mach-shortcuts
:= $(filter-out device_writev_request \
109 device_read_overwrite_request \
110 device_read_overwrite \
114 $(patsubst syscall_
%,%,$(filter syscall_
%,$(mach-syscalls
))))
116 ifndef mach-shortcuts
117 # Forget about mach_interface.defs for this run. On the next run,
118 # $(mach-shortcuts) will be set, and that will change how
119 # mach_interface.defs is processed: it will get the -D flags below.
120 user-interfaces
:= $(filter-out $(mach-interface-list
:%=mach
/%) \
121 mach
/mach_port mach
/mach_host mach
/mach4 mach
/gnumach \
122 device
/device_request
,\
126 # For some reason, the calls in this file are `protected' by an ifdef.
127 MIGFLAGS-mach
/mach4
= -DMACH_PCSAMPLE
128 MIGFLAGS-device
/device
= -DDEVICE_ENABLE_DEVICE_OPEN_NEW
130 # Make the MiG stubs for $(mach-shortcuts) be CALL_rpc.
131 migdefines
+= $(foreach call
,$(mach-shortcuts
),-D
$(call
)=$(call
)_rpc
)
132 $(mach-interface-list
:%=mach
/%.uh
) \
133 mach
/mach_host.uh mach
/mach_port.uh
: $(objpfx
)mach-syscalls.mk
136 $(mach-shortcuts
:%=$(objpfx
)%.c
): $(objpfx
)%.c
: shortcut.awk \
138 $(AWK
) -v alias
=$* -v call
=__
$* -v rpc
=__
$*_rpc \
139 -v syscall
=__syscall_
$* -f
$^
> $@
-new
141 generated
+= $(mach-shortcuts
:%=%.c
)
142 endif # mach-shortcuts
144 # Generate mach-shortcuts.h, which will contain the prototypes for the
145 # shortcutted kernel RPC functions.
146 $(objpfx
)mach-shortcuts.h
: $(mach-interface-list
:%=$(objpfx
)mach
/%.h
) \
147 $(objpfx
)mach
/mach_host.h \
148 $(objpfx
)mach
/mach_port.h
149 # The first line gets us one paragraph per line, with @s separating real lines.
150 # The second line selects paragraphs for the shortcutted functions.
151 # The third line removes `_rpc' from the names and reconstitutes the lines.
152 ( echo
"#include <mach/mach_types.h>" ; \
153 echo
"#include <mach/message.h>" ; \
155 cat
$^ | tr
\\012 @ | sed s
/@@
/@
%/g | tr
% \\012 \
156 | grep
'^/\* Routine [a-z0-9_]*_rpc \*/' \
157 | sed
's/_rpc//g' | tr @
\\012 ) > $@
-new
159 generated
+= mach-shortcuts.h
161 before-compile
+= $(objpfx
)mach-shortcuts.h
167 # A gcc bug prevents the generated file from working properly,
168 # so we have one in the distribution for the time being.
169 generated
+= errsystems.c
170 $(objpfx
)errsystems.c
: errsystems.awk err_
*.sub \
171 $(wildcard $(addsuffix /err_
*.sub
,$(+sysdep_dirs
)))
172 $(AWK
) -v subsys
='$(filter-out $<,$^)' -f
$^
> $@.n
176 # Convenient target to update all the generated source files.
178 generated
: $(addprefix $(common-objpfx
),$(common-generated
)) \
179 $(addprefix $(objpfx
),$(generated
))
181 .PHONY
: mach-before-compile
182 mach-before-compile
: $(mach-before-compile
)