Multi-arch REGISTER_BYTES_OK.
[deliverable/binutils-gdb.git] / gdb / gdbarch.sh
CommitLineData
66b43ecb 1#!/bin/sh -u
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2
3# Architecture commands for GDB, the GNU debugger.
59233f88 4# Copyright 1998-2000 Free Software Foundation, Inc.
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5#
6# This file is part of GDB.
7#
8# This program is free software; you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation; either version 2 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21
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22compare_new ()
23{
24 file=$1
66b43ecb 25 if test ! -r ${file}
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26 then
27 echo "${file} missing? cp new-${file} ${file}" 1>&2
28 elif diff -c ${file} new-${file}
29 then
30 echo "${file} unchanged" 1>&2
31 else
32 echo "${file} has changed? cp new-${file} ${file}" 1>&2
33 fi
34}
35
36
37# Format of the input table
0b8f9e4d 38read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
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39
40do_read ()
41{
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42 comment=""
43 class=""
44 while read line
45 do
46 if test "${line}" = ""
47 then
48 continue
49 elif test "${line}" = "#" -a "${comment}" = ""
f0d4cc9e 50 then
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51 continue
52 elif expr "${line}" : "#" > /dev/null
f0d4cc9e 53 then
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54 comment="${comment}
55${line}"
f0d4cc9e 56 else
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57
58 # The semantics of IFS varies between different SH's. Some
59 # treat ``::' as three fields while some treat it as just too.
60 # Work around this by eliminating ``::'' ....
61 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
62
63 OFS="${IFS}" ; IFS="[:]"
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64 eval read ${read} <<EOF
65${line}
66EOF
67 IFS="${OFS}"
68
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69 # .... and then going back through each field and strip out those
70 # that ended up with just that space character.
71 for r in ${read}
72 do
73 if eval test \"\${${r}}\" = \"\ \"
74 then
75 eval ${r}=""
76 fi
77 done
78
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79 test "${staticdefault}" || staticdefault=0
80 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
81 # multi-arch defaults.
82 # test "${predefault}" || predefault=0
83 test "${fmt}" || fmt="%ld"
84 test "${print}" || print="(long) ${macro}"
85 case "${invalid_p}" in
86 0 ) valid_p=1 ;;
87 "" )
88 if [ "${predefault}" ]
89 then
90 #invalid_p="gdbarch->${function} == ${predefault}"
91 valid_p="gdbarch->${function} != ${predefault}"
92 else
93 #invalid_p="gdbarch->${function} == 0"
94 valid_p="gdbarch->${function} != 0"
95 fi
96 ;;
97 * ) valid_p="!(${invalid_p})"
98 esac
99
100 # PREDEFAULT is a valid fallback definition of MEMBER when
101 # multi-arch is not enabled. This ensures that the
102 # default value, when multi-arch is the same as the
103 # default value when not multi-arch. POSTDEFAULT is
104 # always a valid definition of MEMBER as this again
105 # ensures consistency.
106
107 if [ "${postdefault}" != "" ]
108 then
109 fallbackdefault="${postdefault}"
110 elif [ "${predefault}" != "" ]
111 then
112 fallbackdefault="${predefault}"
113 else
114 fallbackdefault=""
115 fi
116
117 #NOT YET: See gdbarch.log for basic verification of
118 # database
119
120 break
f0d4cc9e 121 fi
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122 done
123 if [ "${class}" ]
124 then
125 true
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126 else
127 false
128 fi
129}
130
104c1213 131
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132fallback_default_p ()
133{
134 [ "${postdefault}" != "" -a "${invalid_p}" != "0" ] \
135 || [ "${predefault}" != "" -a "${invalid_p}" = "0" ]
136}
137
138class_is_variable_p ()
139{
140 [ "${class}" = "v" -o "${class}" = "V" ]
141}
142
143class_is_function_p ()
144{
145 [ "${class}" = "f" -o "${class}" = "F" ]
146}
147
148class_is_predicate_p ()
149{
150 [ "${class}" = "F" -o "${class}" = "V" ]
151}
152
153class_is_info_p ()
154{
155 [ "${class}" = "i" ]
156}
157
158
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159# dump out/verify the doco
160for field in ${read}
161do
162 case ${field} in
163
164 class ) : ;;
c4093a6a 165
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166 # # -> line disable
167 # f -> function
168 # hiding a function
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169 # F -> function + predicate
170 # hiding a function + predicate to test function validity
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171 # v -> variable
172 # hiding a variable
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173 # V -> variable + predicate
174 # hiding a variable + predicate to test variables validity
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175 # i -> set from info
176 # hiding something from the ``struct info'' object
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177
178 level ) : ;;
179
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180 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
181 # LEVEL is a predicate on checking that a given method is
182 # initialized (using INVALID_P).
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183
184 macro ) : ;;
185
c0e8c252 186 # The name of the MACRO that this method is to be accessed by.
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187
188 returntype ) : ;;
189
c0e8c252 190 # For functions, the return type; for variables, the data type
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191
192 function ) : ;;
193
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194 # For functions, the member function name; for variables, the
195 # variable name. Member function names are always prefixed with
196 # ``gdbarch_'' for name-space purity.
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197
198 formal ) : ;;
199
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200 # The formal argument list. It is assumed that the formal
201 # argument list includes the actual name of each list element.
202 # A function with no arguments shall have ``void'' as the
203 # formal argument list.
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204
205 actual ) : ;;
206
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207 # The list of actual arguments. The arguments specified shall
208 # match the FORMAL list given above. Functions with out
209 # arguments leave this blank.
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210
211 attrib ) : ;;
212
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213 # Any GCC attributes that should be attached to the function
214 # declaration. At present this field is unused.
cff3e48b 215
0b8f9e4d 216 staticdefault ) : ;;
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217
218 # To help with the GDB startup a static gdbarch object is
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219 # created. STATICDEFAULT is the value to insert into that
220 # static gdbarch object. Since this a static object only
221 # simple expressions can be used.
cff3e48b 222
0b8f9e4d 223 # If STATICDEFAULT is empty, zero is used.
c0e8c252 224
0b8f9e4d 225 predefault ) : ;;
cff3e48b 226
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227 # A initial value to assign to MEMBER of the freshly
228 # malloc()ed gdbarch object. After the gdbarch object has
229 # been initialized using PREDEFAULT, it is passed to the
230 # target code for further updates.
cff3e48b 231
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232 # If PREDEFAULT is empty, zero is used.
233
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234 # When POSTDEFAULT is empty, a non-empty PREDEFAULT and a zero
235 # INVALID_P will be used as default values when when
236 # multi-arch is disabled. Specify a zero PREDEFAULT function
237 # to make that fallback call internal_error().
238
239 # Variable declarations can refer to ``gdbarch'' which will
240 # contain the current architecture. Care should be taken.
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241
242 postdefault ) : ;;
243
244 # A value to assign to MEMBER of the new gdbarch object should
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245 # the target code fail to change the PREDEFAULT value. Also
246 # use POSTDEFAULT as the fallback value for the non-
247 # multi-arch case.
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248
249 # If POSTDEFAULT is empty, no post update is performed.
250
251 # If both INVALID_P and POSTDEFAULT are non-empty then
252 # INVALID_P will be used to determine if MEMBER should be
253 # changed to POSTDEFAULT.
254
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255 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
256
257 # Variable declarations can refer to ``gdbarch'' which will
258 # contain the current architecture. Care should be taken.
cff3e48b 259
c4093a6a 260 invalid_p ) : ;;
cff3e48b 261
0b8f9e4d 262 # A predicate equation that validates MEMBER. Non-zero is
c0e8c252 263 # returned if the code creating the new architecture failed to
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264 # initialize MEMBER or the initialized the member is invalid.
265 # If POSTDEFAULT is non-empty then MEMBER will be updated to
266 # that value. If POSTDEFAULT is empty then internal_error()
267 # is called.
268
269 # If INVALID_P is empty, a check that MEMBER is no longer
270 # equal to PREDEFAULT is used.
271
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272 # The expression ``0'' disables the INVALID_P check making
273 # PREDEFAULT a legitimate value.
0b8f9e4d
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274
275 # See also PREDEFAULT and POSTDEFAULT.
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276
277 fmt ) : ;;
278
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279 # printf style format string that can be used to print out the
280 # MEMBER. Sometimes "%s" is useful. For functions, this is
281 # ignored and the function address is printed.
282
0b8f9e4d 283 # If FMT is empty, ``%ld'' is used.
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284
285 print ) : ;;
286
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287 # An optional equation that casts MEMBER to a value suitable
288 # for formatting by FMT.
289
0b8f9e4d 290 # If PRINT is empty, ``(long)'' is used.
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291
292 print_p ) : ;;
293
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294 # An optional indicator for any predicte to wrap around the
295 # print member code.
296
4b9b3959 297 # () -> Call a custom function to do the dump.
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298 # exp -> Wrap print up in ``if (${print_p}) ...
299 # ``'' -> No predicate
cff3e48b 300
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301 # If PRINT_P is empty, ``1'' is always used.
302
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303 description ) : ;;
304
0b8f9e4d 305 # Currently unused.
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306
307 *) exit 1;;
308 esac
309done
310
cff3e48b 311
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312function_list ()
313{
cff3e48b 314 # See below (DOCO) for description of each field
34620563 315 cat <<EOF
0b8f9e4d 316i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
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317#
318i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
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319# Number of bits in a char or unsigned char for the target machine.
320# Just like CHAR_BIT in <limits.h> but describes the target machine.
321# v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
322#
323# Number of bits in a short or unsigned short for the target machine.
324v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
325# Number of bits in an int or unsigned int for the target machine.
326v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
327# Number of bits in a long or unsigned long for the target machine.
328v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
329# Number of bits in a long long or unsigned long long for the target
330# machine.
331v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
332# Number of bits in a float for the target machine.
333v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
334# Number of bits in a double for the target machine.
335v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
336# Number of bits in a long double for the target machine.
337v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
52204a0b
DT
338# For most targets, a pointer on the target and its representation as an
339# address in GDB have the same size and "look the same". For such a
340# target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
341# / addr_bit will be set from it.
342#
343# If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
344# also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
345#
346# ptr_bit is the size of a pointer on the target
66b43ecb 347v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
52204a0b
DT
348# addr_bit is the size of a target address as represented in gdb
349v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
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350# Number of bits in a BFD_VMA for the target object file format.
351v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
104c1213 352#
be8dfb87 353v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
104c1213 354#
be8dfb87
AC
355f::TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:generic_target_read_pc::0
356f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:generic_target_write_pc::0
357f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
358f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
359f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
360f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
66b43ecb 361#
104c1213 362v:2:NUM_REGS:int:num_regs::::0:-1
0aba1244
EZ
363# This macro gives the number of pseudo-registers that live in the
364# register namespace but do not get fetched or stored on the target.
3d9a5942
AC
365# These pseudo-registers may be aliases for other registers,
366# combinations of other registers, or they may be computed by GDB.
0aba1244 367v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
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368v:2:SP_REGNUM:int:sp_regnum::::0:-1
369v:2:FP_REGNUM:int:fp_regnum::::0:-1
370v:2:PC_REGNUM:int:pc_regnum::::0:-1
0b8f9e4d
AC
371v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
372v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
373v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
88c72b7d
AC
374# Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
375f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
376# Provide a default mapping from a ecoff register number to a gdb REGNUM.
377f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
378# Provide a default mapping from a DWARF register number to a gdb REGNUM.
379f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
380# Convert from an sdb register number to an internal gdb register number.
381# This should be defined in tm.h, if REGISTER_NAMES is not set up
382# to map one to one onto the sdb register numbers.
383f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
384f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
0b8f9e4d 385f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
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386v:2:REGISTER_SIZE:int:register_size::::0:-1
387v:2:REGISTER_BYTES:int:register_bytes::::0:-1
388f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
389f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
390v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
391f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
392v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
393f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
666e11c5 394f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
7c7651b2
AC
395# MAP a GDB RAW register number onto a simulator register number. See
396# also include/...-sim.h.
397f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
2649061d 398F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
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399#
400v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
401v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
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402f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0::gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0
403v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
7861024d 404v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1:::0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
104c1213 405v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
0b8f9e4d 406v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
104c1213
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407f:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
408v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
0b8f9e4d
AC
409v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
410v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
411v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
412v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0:::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P
413f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p:::0
104c1213 414#
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AC
415v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
416v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
0b8f9e4d 417f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0
104c1213
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418f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0
419#
0b8f9e4d
AC
420f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
421f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
422f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
34620563
AC
423# This function is called when the value of a pseudo-register needs to
424# be updated. Typically it will be defined on a per-architecture
425# basis.
7f1b2585 426f:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:::0::0
34620563
AC
427# This function is called when the value of a pseudo-register needs to
428# be set or stored. Typically it will be defined on a
429# per-architecture basis.
7f1b2585 430f:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:::0::0
104c1213 431#
ac2e2ef7
AC
432f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
433f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
4478b372 434#
0b8f9e4d 435f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
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436f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
437f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0
c0e8c252
AC
438f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
439f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
440f:2:POP_FRAME:void:pop_frame:void:-:::0
104c1213
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441#
442# I wish that these would just go away....
0b8f9e4d
AC
443f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x:::0::0
444f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x:::0::0
445f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x:::0::0
446f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x:::0::0
447f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x:::0::0
448f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x:::0::0
104c1213 449#
c0e8c252
AC
450f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
451f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
452f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
453f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::0
104c1213
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454#
455f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
c0e8c252 456f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
104c1213
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457#
458f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
0b8f9e4d 459f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
104c1213 460f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
0b8f9e4d
AC
461f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
462f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
463f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
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464v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
465v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
466#
0b8f9e4d 467f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
104c1213
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468#
469v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
0b8f9e4d 470f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
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471f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
472f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
473f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
474f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
475f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
476f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
477f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
478#
2ada493a 479F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
0a49d05e 480v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
d03e67c9 481F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
d1e3cf49 482F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
f0d4cc9e
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483#
484v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
485v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
486v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
f517ea4e 487f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::default_convert_from_func_ptr_addr::0
104c1213 488EOF
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489}
490
0b8f9e4d
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491#
492# The .log file
493#
494exec > new-gdbarch.log
34620563 495function_list | while do_read
0b8f9e4d
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496do
497 cat <<EOF
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498${class} ${macro}(${actual})
499 ${returntype} ${function} ($formal)${attrib}
104c1213 500EOF
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501 for r in ${read}
502 do
503 eval echo \"\ \ \ \ ${r}=\${${r}}\"
504 done
505# #fallbackdefault=${fallbackdefault}
506# #valid_p=${valid_p}
507#EOF
f0d4cc9e 508 if class_is_predicate_p && fallback_default_p
0b8f9e4d 509 then
66b43ecb 510 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
0b8f9e4d
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511 kill $$
512 exit 1
513 fi
f0d4cc9e
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514 if [ "${invalid_p}" = "0" -a "${postdefault}" != "" ]
515 then
516 echo "Error: postdefault is useless when invalid_p=0" 1>&2
517 kill $$
518 exit 1
519 fi
3d9a5942 520 echo ""
0b8f9e4d
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521done
522
523exec 1>&2
524compare_new gdbarch.log
525
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526
527copyright ()
528{
529cat <<EOF
59233f88
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530/* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
531
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532/* Dynamic architecture support for GDB, the GNU debugger.
533 Copyright 1998-1999, Free Software Foundation, Inc.
534
535 This file is part of GDB.
536
537 This program is free software; you can redistribute it and/or modify
538 it under the terms of the GNU General Public License as published by
539 the Free Software Foundation; either version 2 of the License, or
540 (at your option) any later version.
541
542 This program is distributed in the hope that it will be useful,
543 but WITHOUT ANY WARRANTY; without even the implied warranty of
544 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
545 GNU General Public License for more details.
546
547 You should have received a copy of the GNU General Public License
548 along with this program; if not, write to the Free Software
549 Foundation, Inc., 59 Temple Place - Suite 330,
550 Boston, MA 02111-1307, USA. */
551
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552/* This file was created with the aid of \`\`gdbarch.sh''.
553
52204a0b 554 The Bourne shell script \`\`gdbarch.sh'' creates the files
104c1213
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555 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
556 against the existing \`\`gdbarch.[hc]''. Any differences found
557 being reported.
558
559 If editing this file, please also run gdbarch.sh and merge any
52204a0b 560 changes into that script. Conversely, when making sweeping changes
104c1213
JM
561 to this file, modifying gdbarch.sh and using its output may prove
562 easier. */
563
564EOF
565}
566
567#
568# The .h file
569#
570
571exec > new-gdbarch.h
572copyright
573cat <<EOF
574#ifndef GDBARCH_H
575#define GDBARCH_H
576
577struct frame_info;
578struct value;
579
580
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581extern struct gdbarch *current_gdbarch;
582
583
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584/* If any of the following are defined, the target wasn't correctly
585 converted. */
586
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587#if GDB_MULTI_ARCH
588#if defined (EXTRA_FRAME_INFO)
589#error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
590#endif
591#endif
592
593#if GDB_MULTI_ARCH
594#if defined (FRAME_FIND_SAVED_REGS)
595#error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
596#endif
597#endif
598EOF
599
600# function typedef's
3d9a5942
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601printf "\n"
602printf "\n"
603printf "/* The following are pre-initialized by GDBARCH. */\n"
34620563 604function_list | while do_read
104c1213 605do
2ada493a
AC
606 if class_is_info_p
607 then
3d9a5942
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608 printf "\n"
609 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
610 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
611 printf "#if GDB_MULTI_ARCH\n"
612 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
613 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
614 printf "#endif\n"
615 printf "#endif\n"
2ada493a 616 fi
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617done
618
619# function typedef's
3d9a5942
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620printf "\n"
621printf "\n"
622printf "/* The following are initialized by the target dependent code. */\n"
34620563 623function_list | while do_read
104c1213 624do
34620563
AC
625 if [ "${comment}" ]
626 then
627 echo "${comment}" | sed \
628 -e '2 s,#,/*,' \
629 -e '3,$ s,#, ,' \
630 -e '$ s,$, */,'
631 fi
2ada493a
AC
632 if class_is_predicate_p
633 then
3d9a5942
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634 printf "\n"
635 printf "#if defined (${macro})\n"
636 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
637# printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
638 printf "#define ${macro}_P() (1)\n"
639 printf "#endif\n"
640 printf "\n"
641 printf "/* Default predicate for non- multi-arch targets. */\n"
642 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
643 printf "#define ${macro}_P() (0)\n"
644 printf "#endif\n"
645 printf "\n"
646 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
647 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
648 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
649 printf "#endif\n"
2ada493a
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650 fi
651 if class_is_variable_p
652 then
f0d4cc9e 653 if fallback_default_p || class_is_predicate_p
33489c5b 654 then
3d9a5942
AC
655 printf "\n"
656 printf "/* Default (value) for non- multi-arch platforms. */\n"
657 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
f0d4cc9e
AC
658 echo "#define ${macro} (${fallbackdefault})" \
659 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
3d9a5942 660 printf "#endif\n"
33489c5b 661 fi
3d9a5942
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662 printf "\n"
663 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
664 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
665 printf "#if GDB_MULTI_ARCH\n"
666 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
667 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
668 printf "#endif\n"
669 printf "#endif\n"
2ada493a
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670 fi
671 if class_is_function_p
672 then
f0d4cc9e 673 if fallback_default_p || class_is_predicate_p
33489c5b 674 then
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675 printf "\n"
676 printf "/* Default (function) for non- multi-arch platforms. */\n"
677 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
f0d4cc9e 678 if [ "${fallbackdefault}" = "0" ]
33489c5b 679 then
3d9a5942 680 printf "#define ${macro}(${actual}) (internal_error (\"${macro}\"), 0)\n"
33489c5b 681 else
f0d4cc9e
AC
682 # FIXME: Should be passing current_gdbarch through!
683 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
684 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
33489c5b 685 fi
3d9a5942 686 printf "#endif\n"
33489c5b 687 fi
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688 printf "\n"
689 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
104c1213
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690 if [ "${formal}" = "void" ]
691 then
3d9a5942 692 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
104c1213 693 else
3d9a5942 694 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
104c1213 695 fi
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696 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
697 printf "#if GDB_MULTI_ARCH\n"
698 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
104c1213
JM
699 if [ "${actual}" = "" ]
700 then
3d9a5942 701 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
104c1213
JM
702 elif [ "${actual}" = "-" ]
703 then
3d9a5942 704 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
104c1213 705 else
3d9a5942 706 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
104c1213 707 fi
3d9a5942
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708 printf "#endif\n"
709 printf "#endif\n"
2ada493a 710 fi
104c1213
JM
711done
712
713# close it off
714cat <<EOF
715
716extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
717
718
719/* Mechanism for co-ordinating the selection of a specific
720 architecture.
721
722 GDB targets (*-tdep.c) can register an interest in a specific
723 architecture. Other GDB components can register a need to maintain
724 per-architecture data.
725
726 The mechanisms below ensures that there is only a loose connection
727 between the set-architecture command and the various GDB
0fa6923a 728 components. Each component can independently register their need
104c1213
JM
729 to maintain architecture specific data with gdbarch.
730
731 Pragmatics:
732
733 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
734 didn't scale.
735
736 The more traditional mega-struct containing architecture specific
737 data for all the various GDB components was also considered. Since
0fa6923a 738 GDB is built from a variable number of (fairly independent)
104c1213
JM
739 components it was determined that the global aproach was not
740 applicable. */
741
742
743/* Register a new architectural family with GDB.
744
745 Register support for the specified ARCHITECTURE with GDB. When
746 gdbarch determines that the specified architecture has been
747 selected, the corresponding INIT function is called.
748
749 --
750
751 The INIT function takes two parameters: INFO which contains the
752 information available to gdbarch about the (possibly new)
753 architecture; ARCHES which is a list of the previously created
754 \`\`struct gdbarch'' for this architecture.
755
756 The INIT function parameter INFO shall, as far as possible, be
757 pre-initialized with information obtained from INFO.ABFD or
758 previously selected architecture (if similar). INIT shall ensure
759 that the INFO.BYTE_ORDER is non-zero.
760
761 The INIT function shall return any of: NULL - indicating that it
ec3d358c 762 doesn't recognize the selected architecture; an existing \`\`struct
104c1213
JM
763 gdbarch'' from the ARCHES list - indicating that the new
764 architecture is just a synonym for an earlier architecture (see
765 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
4b9b3959
AC
766 - that describes the selected architecture (see gdbarch_alloc()).
767
768 The DUMP_TDEP function shall print out all target specific values.
769 Care should be taken to ensure that the function works in both the
770 multi-arch and non- multi-arch cases. */
104c1213
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771
772struct gdbarch_list
773{
774 struct gdbarch *gdbarch;
775 struct gdbarch_list *next;
776};
777
778struct gdbarch_info
779{
780 /* Use default: bfd_arch_unknown (ZERO). */
781 enum bfd_architecture bfd_architecture;
782
783 /* Use default: NULL (ZERO). */
784 const struct bfd_arch_info *bfd_arch_info;
785
786 /* Use default: 0 (ZERO). */
787 int byte_order;
788
789 /* Use default: NULL (ZERO). */
790 bfd *abfd;
791
792 /* Use default: NULL (ZERO). */
793 struct gdbarch_tdep_info *tdep_info;
794};
795
796typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
4b9b3959 797typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
104c1213 798
4b9b3959 799/* DEPRECATED - use gdbarch_register() */
104c1213
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800extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
801
4b9b3959
AC
802extern void gdbarch_register (enum bfd_architecture architecture,
803 gdbarch_init_ftype *,
804 gdbarch_dump_tdep_ftype *);
805
104c1213 806
b4a20239
AC
807/* Return a freshly allocated, NULL terminated, array of the valid
808 architecture names. Since architectures are registered during the
809 _initialize phase this function only returns useful information
810 once initialization has been completed. */
811
812extern const char **gdbarch_printable_names (void);
813
814
104c1213
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815/* Helper function. Search the list of ARCHES for a GDBARCH that
816 matches the information provided by INFO. */
817
818extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
819
820
821/* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
822 basic initialization using values obtained from the INFO andTDEP
823 parameters. set_gdbarch_*() functions are called to complete the
824 initialization of the object. */
825
826extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
827
828
4b9b3959
AC
829/* Helper function. Free a partially-constructed \`\`struct gdbarch''.
830 It is assumed that the caller freeds the \`\`struct
831 gdbarch_tdep''. */
832
058f20d5
JB
833extern void gdbarch_free (struct gdbarch *);
834
835
104c1213
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836/* Helper function. Force an update of the current architecture. Used
837 by legacy targets that have added their own target specific
838 architecture manipulation commands.
839
840 The INFO parameter shall be fully initialized (\`\`memset (&INFO,
16f33e29
AC
841 sizeof (info), 0)'' set relevant fields) before gdbarch_update_p()
842 is called. gdbarch_update_p() shall initialize any \`\`default''
843 fields using information obtained from the previous architecture or
104c1213 844 INFO.ABFD (if specified) before calling the corresponding
16f33e29 845 architectures INIT function.
104c1213 846
16f33e29
AC
847 Returns non-zero if the update succeeds */
848
849extern int gdbarch_update_p (struct gdbarch_info info);
104c1213
JM
850
851
852
853/* Register per-architecture data-pointer.
854
855 Reserve space for a per-architecture data-pointer. An identifier
856 for the reserved data-pointer is returned. That identifer should
857 be saved in a local static.
858
859 When a new architecture is selected, INIT() is called. When a
860 previous architecture is re-selected, the per-architecture
861 data-pointer for that previous architecture is restored (INIT() is
862 not called).
863
864 INIT() shall return the initial value for the per-architecture
865 data-pointer for the current architecture.
866
867 Multiple registrarants for any architecture are allowed (and
868 strongly encouraged). */
869
870typedef void *(gdbarch_data_ftype) (void);
871extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init);
872
873/* Return the value of the per-architecture data-pointer for the
874 current architecture. */
875
876extern void *gdbarch_data (struct gdbarch_data*);
877
878
879
880/* Register per-architecture memory region.
881
882 Provide a memory-region swap mechanism. Per-architecture memory
883 region are created. These memory regions are swapped whenever the
884 architecture is changed. For a new architecture, the memory region
885 is initialized with zero (0) and the INIT function is called.
886
887 Memory regions are swapped / initialized in the order that they are
888 registered. NULL DATA and/or INIT values can be specified.
889
890 New code should use register_gdbarch_data(). */
891
892typedef void (gdbarch_swap_ftype) (void);
893extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
e514a9d6 894#define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
104c1213
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895
896
897
0fa6923a 898/* The target-system-dependent byte order is dynamic */
104c1213
JM
899
900/* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
901 is selectable at runtime. The user can use the \`\`set endian''
902 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
903 target_byte_order should be auto-detected (from the program image
904 say). */
905
906#if GDB_MULTI_ARCH
907/* Multi-arch GDB is always bi-endian. */
908#define TARGET_BYTE_ORDER_SELECTABLE_P 1
909#endif
910
911#ifndef TARGET_BYTE_ORDER_SELECTABLE_P
912/* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
913 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
914#ifdef TARGET_BYTE_ORDER_SELECTABLE
915#define TARGET_BYTE_ORDER_SELECTABLE_P 1
916#else
917#define TARGET_BYTE_ORDER_SELECTABLE_P 0
918#endif
919#endif
920
921extern int target_byte_order;
922#ifdef TARGET_BYTE_ORDER_SELECTABLE
923/* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
924 and expect defs.h to re-define TARGET_BYTE_ORDER. */
925#undef TARGET_BYTE_ORDER
926#endif
927#ifndef TARGET_BYTE_ORDER
928#define TARGET_BYTE_ORDER (target_byte_order + 0)
929#endif
930
931extern int target_byte_order_auto;
932#ifndef TARGET_BYTE_ORDER_AUTO
933#define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
934#endif
935
936
937
0fa6923a 938/* The target-system-dependent BFD architecture is dynamic */
104c1213
JM
939
940extern int target_architecture_auto;
941#ifndef TARGET_ARCHITECTURE_AUTO
942#define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
943#endif
944
945extern const struct bfd_arch_info *target_architecture;
946#ifndef TARGET_ARCHITECTURE
947#define TARGET_ARCHITECTURE (target_architecture + 0)
948#endif
949
104c1213 950
0fa6923a 951/* The target-system-dependent disassembler is semi-dynamic */
104c1213
JM
952
953#include "dis-asm.h" /* Get defs for disassemble_info */
954
955extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
ff844c8d 956 unsigned int len, disassemble_info *info);
104c1213
JM
957
958extern void dis_asm_memory_error (int status, bfd_vma memaddr,
959 disassemble_info *info);
960
961extern void dis_asm_print_address (bfd_vma addr,
962 disassemble_info *info);
963
964extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
965extern disassemble_info tm_print_insn_info;
966#ifndef TARGET_PRINT_INSN
967#define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info)
968#endif
969#ifndef TARGET_PRINT_INSN_INFO
970#define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
971#endif
972
973
974
975/* Explicit test for D10V architecture.
976 USE of these macro's is *STRONGLY* discouraged. */
977
978#define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v)
104c1213
JM
979
980
981/* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */
982#ifndef EXTRACT_STRUCT_VALUE_ADDRESS
983#define EXTRACT_STRUCT_VALUE_ADDRESS_P (0)
984#define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0)
985#else
986#ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P
987#define EXTRACT_STRUCT_VALUE_ADDRESS_P (1)
988#endif
989#endif
990
991
0fa6923a 992/* Set the dynamic target-system-dependent parameters (architecture,
104c1213
JM
993 byte-order, ...) using information found in the BFD */
994
995extern void set_gdbarch_from_file (bfd *);
996
997
e514a9d6
JM
998/* Initialize the current architecture to the "first" one we find on
999 our list. */
1000
1001extern void initialize_current_architecture (void);
1002
104c1213
JM
1003
1004/* gdbarch trace variable */
1005extern int gdbarch_debug;
1006
4b9b3959 1007extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
104c1213
JM
1008
1009#endif
1010EOF
1011exec 1>&2
1012#../move-if-change new-gdbarch.h gdbarch.h
59233f88 1013compare_new gdbarch.h
104c1213
JM
1014
1015
1016#
1017# C file
1018#
1019
1020exec > new-gdbarch.c
1021copyright
1022cat <<EOF
1023
1024#include "defs.h"
7355ddba 1025#include "arch-utils.h"
104c1213
JM
1026
1027#if GDB_MULTI_ARCH
1028#include "gdbcmd.h"
1029#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1030#else
1031/* Just include everything in sight so that the every old definition
1032 of macro is visible. */
1033#include "gdb_string.h"
1034#include <ctype.h>
1035#include "symtab.h"
1036#include "frame.h"
1037#include "inferior.h"
1038#include "breakpoint.h"
0596389c 1039#include "gdb_wait.h"
104c1213
JM
1040#include "gdbcore.h"
1041#include "gdbcmd.h"
1042#include "target.h"
1043#include "gdbthread.h"
1044#include "annotate.h"
1045#include "symfile.h" /* for overlay functions */
1046#endif
1047#include "symcat.h"
1048
f0d4cc9e 1049#include "floatformat.h"
104c1213
JM
1050
1051/* Static function declarations */
1052
1053static void verify_gdbarch (struct gdbarch *gdbarch);
1054static void init_gdbarch_data (struct gdbarch *);
1055static void init_gdbarch_swap (struct gdbarch *);
1056static void swapout_gdbarch_swap (struct gdbarch *);
1057static void swapin_gdbarch_swap (struct gdbarch *);
1058
1059/* Convenience macro for allocting typesafe memory. */
1060
1061#ifndef XMALLOC
1062#define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1063#endif
1064
1065
1066/* Non-zero if we want to trace architecture code. */
1067
1068#ifndef GDBARCH_DEBUG
1069#define GDBARCH_DEBUG 0
1070#endif
1071int gdbarch_debug = GDBARCH_DEBUG;
1072
1073EOF
1074
1075# gdbarch open the gdbarch object
3d9a5942
AC
1076printf "\n"
1077printf "/* Maintain the struct gdbarch object */\n"
1078printf "\n"
1079printf "struct gdbarch\n"
1080printf "{\n"
1081printf " /* basic architectural information */\n"
34620563 1082function_list | while do_read
104c1213 1083do
2ada493a
AC
1084 if class_is_info_p
1085 then
3d9a5942 1086 printf " ${returntype} ${function};\n"
2ada493a 1087 fi
104c1213 1088done
3d9a5942
AC
1089printf "\n"
1090printf " /* target specific vector. */\n"
1091printf " struct gdbarch_tdep *tdep;\n"
1092printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1093printf "\n"
1094printf " /* per-architecture data-pointers */\n"
1095printf " int nr_data;\n"
1096printf " void **data;\n"
1097printf "\n"
1098printf " /* per-architecture swap-regions */\n"
1099printf " struct gdbarch_swap *swap;\n"
1100printf "\n"
104c1213
JM
1101cat <<EOF
1102 /* Multi-arch values.
1103
1104 When extending this structure you must:
1105
1106 Add the field below.
1107
1108 Declare set/get functions and define the corresponding
1109 macro in gdbarch.h.
1110
1111 gdbarch_alloc(): If zero/NULL is not a suitable default,
1112 initialize the new field.
1113
1114 verify_gdbarch(): Confirm that the target updated the field
1115 correctly.
1116
7e73cedf 1117 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
104c1213
JM
1118 field is dumped out
1119
c0e8c252 1120 \`\`startup_gdbarch()'': Append an initial value to the static
104c1213
JM
1121 variable (base values on the host's c-type system).
1122
1123 get_gdbarch(): Implement the set/get functions (probably using
1124 the macro's as shortcuts).
1125
1126 */
1127
1128EOF
34620563 1129function_list | while do_read
104c1213 1130do
2ada493a
AC
1131 if class_is_variable_p
1132 then
3d9a5942 1133 printf " ${returntype} ${function};\n"
2ada493a
AC
1134 elif class_is_function_p
1135 then
3d9a5942 1136 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
2ada493a 1137 fi
104c1213 1138done
3d9a5942 1139printf "};\n"
104c1213
JM
1140
1141# A pre-initialized vector
3d9a5942
AC
1142printf "\n"
1143printf "\n"
104c1213
JM
1144cat <<EOF
1145/* The default architecture uses host values (for want of a better
1146 choice). */
1147EOF
3d9a5942
AC
1148printf "\n"
1149printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1150printf "\n"
1151printf "struct gdbarch startup_gdbarch =\n"
1152printf "{\n"
1153printf " /* basic architecture information */\n"
4b9b3959 1154function_list | while do_read
104c1213 1155do
2ada493a
AC
1156 if class_is_info_p
1157 then
3d9a5942 1158 printf " ${staticdefault},\n"
2ada493a 1159 fi
104c1213
JM
1160done
1161cat <<EOF
4b9b3959
AC
1162 /* target specific vector and its dump routine */
1163 NULL, NULL,
104c1213
JM
1164 /*per-architecture data-pointers and swap regions */
1165 0, NULL, NULL,
1166 /* Multi-arch values */
1167EOF
34620563 1168function_list | while do_read
104c1213 1169do
2ada493a
AC
1170 if class_is_function_p || class_is_variable_p
1171 then
3d9a5942 1172 printf " ${staticdefault},\n"
2ada493a 1173 fi
104c1213
JM
1174done
1175cat <<EOF
c0e8c252 1176 /* startup_gdbarch() */
104c1213 1177};
4b9b3959 1178
c0e8c252 1179struct gdbarch *current_gdbarch = &startup_gdbarch;
104c1213
JM
1180EOF
1181
1182# Create a new gdbarch struct
3d9a5942
AC
1183printf "\n"
1184printf "\n"
104c1213 1185cat <<EOF
66b43ecb 1186/* Create a new \`\`struct gdbarch'' based on information provided by
104c1213
JM
1187 \`\`struct gdbarch_info''. */
1188EOF
3d9a5942 1189printf "\n"
104c1213
JM
1190cat <<EOF
1191struct gdbarch *
1192gdbarch_alloc (const struct gdbarch_info *info,
1193 struct gdbarch_tdep *tdep)
1194{
1195 struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
1196 memset (gdbarch, 0, sizeof (*gdbarch));
1197
1198 gdbarch->tdep = tdep;
1199EOF
3d9a5942 1200printf "\n"
34620563 1201function_list | while do_read
104c1213 1202do
2ada493a
AC
1203 if class_is_info_p
1204 then
3d9a5942 1205 printf " gdbarch->${function} = info->${function};\n"
2ada493a 1206 fi
104c1213 1207done
3d9a5942
AC
1208printf "\n"
1209printf " /* Force the explicit initialization of these. */\n"
34620563 1210function_list | while do_read
104c1213 1211do
2ada493a
AC
1212 if class_is_function_p || class_is_variable_p
1213 then
0b8f9e4d 1214 if [ "${predefault}" != "" -a "${predefault}" != "0" ]
104c1213 1215 then
3d9a5942 1216 printf " gdbarch->${function} = ${predefault};\n"
104c1213 1217 fi
2ada493a 1218 fi
104c1213
JM
1219done
1220cat <<EOF
1221 /* gdbarch_alloc() */
1222
1223 return gdbarch;
1224}
1225EOF
1226
058f20d5 1227# Free a gdbarch struct.
3d9a5942
AC
1228printf "\n"
1229printf "\n"
058f20d5
JB
1230cat <<EOF
1231/* Free a gdbarch struct. This should never happen in normal
1232 operation --- once you've created a gdbarch, you keep it around.
1233 However, if an architecture's init function encounters an error
1234 building the structure, it may need to clean up a partially
1235 constructed gdbarch. */
4b9b3959 1236
058f20d5
JB
1237void
1238gdbarch_free (struct gdbarch *arch)
1239{
1240 /* At the moment, this is trivial. */
1241 free (arch);
1242}
1243EOF
1244
104c1213 1245# verify a new architecture
3d9a5942
AC
1246printf "\n"
1247printf "\n"
1248printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1249printf "\n"
104c1213
JM
1250cat <<EOF
1251static void
1252verify_gdbarch (struct gdbarch *gdbarch)
1253{
1254 /* Only perform sanity checks on a multi-arch target. */
6166d547 1255 if (!GDB_MULTI_ARCH)
104c1213
JM
1256 return;
1257 /* fundamental */
1258 if (gdbarch->byte_order == 0)
1259 internal_error ("verify_gdbarch: byte-order unset");
1260 if (gdbarch->bfd_arch_info == NULL)
1261 internal_error ("verify_gdbarch: bfd_arch_info unset");
1262 /* Check those that need to be defined for the given multi-arch level. */
1263EOF
34620563 1264function_list | while do_read
104c1213 1265do
2ada493a
AC
1266 if class_is_function_p || class_is_variable_p
1267 then
c0e8c252
AC
1268 if [ "${invalid_p}" = "0" ]
1269 then
3d9a5942 1270 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2ada493a
AC
1271 elif class_is_predicate_p
1272 then
3d9a5942 1273 printf " /* Skip verify of ${function}, has predicate */\n"
f0d4cc9e
AC
1274 # FIXME: See do_read for potential simplification
1275 elif [ "${invalid_p}" -a "${postdefault}" ]
1276 then
3d9a5942
AC
1277 printf " if (${invalid_p})\n"
1278 printf " gdbarch->${function} = ${postdefault};\n"
f0d4cc9e
AC
1279 elif [ "${predefault}" -a "${postdefault}" ]
1280 then
3d9a5942
AC
1281 printf " if (gdbarch->${function} == ${predefault})\n"
1282 printf " gdbarch->${function} = ${postdefault};\n"
f0d4cc9e
AC
1283 elif [ "${postdefault}" ]
1284 then
3d9a5942
AC
1285 printf " if (gdbarch->${function} == 0)\n"
1286 printf " gdbarch->${function} = ${postdefault};\n"
f0d4cc9e 1287 elif [ "${invalid_p}" ]
104c1213 1288 then
3d9a5942
AC
1289 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1290 printf " && (${invalid_p}))\n"
1291 printf " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");\n"
0b8f9e4d 1292 elif [ "${predefault}" ]
104c1213 1293 then
3d9a5942
AC
1294 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1295 printf " && (gdbarch->${function} == ${predefault}))\n"
1296 printf " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");\n"
104c1213 1297 fi
2ada493a 1298 fi
104c1213
JM
1299done
1300cat <<EOF
1301}
1302EOF
1303
1304# dump the structure
3d9a5942
AC
1305printf "\n"
1306printf "\n"
104c1213 1307cat <<EOF
4b9b3959
AC
1308/* Print out the details of the current architecture. */
1309
1310/* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1311 just happens to match the global variable \`\`current_gdbarch''. That
1312 way macros refering to that variable get the local and not the global
1313 version - ulgh. Once everything is parameterised with gdbarch, this
1314 will go away. */
1315
104c1213 1316void
4b9b3959 1317gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
104c1213 1318{
4b9b3959
AC
1319 fprintf_unfiltered (file,
1320 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1321 GDB_MULTI_ARCH);
104c1213 1322EOF
4b9b3959 1323function_list | while do_read
104c1213 1324do
66b43ecb 1325 if [ "${returntype}" = "void" ]
63e69063 1326 then
3d9a5942
AC
1327 printf "#if defined (${macro}) && GDB_MULTI_ARCH\n"
1328 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
63e69063 1329 else
3d9a5942 1330 printf "#ifdef ${macro}\n"
63e69063 1331 fi
2ada493a
AC
1332 if class_is_function_p
1333 then
3d9a5942
AC
1334 printf " fprintf_unfiltered (file,\n"
1335 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1336 printf " \"${macro}(${actual})\",\n"
1337 printf " XSTRING (${macro} (${actual})));\n"
2ada493a 1338 else
3d9a5942
AC
1339 printf " fprintf_unfiltered (file,\n"
1340 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1341 printf " XSTRING (${macro}));\n"
4b9b3959 1342 fi
3d9a5942 1343 printf "#endif\n"
4b9b3959
AC
1344done
1345function_list | while do_read
1346do
3d9a5942 1347 printf "#ifdef ${macro}\n"
4b9b3959
AC
1348 if [ "${print_p}" = "()" ]
1349 then
3d9a5942 1350 printf " gdbarch_dump_${function} (current_gdbarch);\n"
4b9b3959
AC
1351 elif [ "${print_p}" = "0" ]
1352 then
3d9a5942 1353 printf " /* skip print of ${macro}, print_p == 0. */\n"
4b9b3959
AC
1354 elif [ "${print_p}" ]
1355 then
3d9a5942
AC
1356 printf " if (${print_p})\n"
1357 printf " fprintf_unfiltered (file,\n"
1358 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1359 printf " ${print});\n"
4b9b3959
AC
1360 elif class_is_function_p
1361 then
3d9a5942
AC
1362 printf " if (GDB_MULTI_ARCH)\n"
1363 printf " fprintf_unfiltered (file,\n"
1364 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1365 printf " (long) current_gdbarch->${function}\n"
1366 printf " /*${macro} ()*/);\n"
4b9b3959 1367 else
3d9a5942
AC
1368 printf " fprintf_unfiltered (file,\n"
1369 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1370 printf " ${print});\n"
2ada493a 1371 fi
3d9a5942 1372 printf "#endif\n"
104c1213 1373done
381323f4 1374cat <<EOF
4b9b3959
AC
1375 if (current_gdbarch->dump_tdep != NULL)
1376 current_gdbarch->dump_tdep (current_gdbarch, file);
381323f4
AC
1377}
1378EOF
104c1213
JM
1379
1380
1381# GET/SET
3d9a5942 1382printf "\n"
104c1213
JM
1383cat <<EOF
1384struct gdbarch_tdep *
1385gdbarch_tdep (struct gdbarch *gdbarch)
1386{
1387 if (gdbarch_debug >= 2)
3d9a5942 1388 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
104c1213
JM
1389 return gdbarch->tdep;
1390}
1391EOF
3d9a5942 1392printf "\n"
34620563 1393function_list | while do_read
104c1213 1394do
2ada493a
AC
1395 if class_is_predicate_p
1396 then
3d9a5942
AC
1397 printf "\n"
1398 printf "int\n"
1399 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1400 printf "{\n"
2ada493a
AC
1401 if [ "${valid_p}" ]
1402 then
3d9a5942 1403 printf " return ${valid_p};\n"
2ada493a 1404 else
3d9a5942 1405 printf "#error \"gdbarch_${function}_p: not defined\"\n"
2ada493a 1406 fi
3d9a5942 1407 printf "}\n"
2ada493a
AC
1408 fi
1409 if class_is_function_p
1410 then
3d9a5942
AC
1411 printf "\n"
1412 printf "${returntype}\n"
104c1213
JM
1413 if [ "${formal}" = "void" ]
1414 then
3d9a5942 1415 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
104c1213 1416 else
3d9a5942 1417 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
104c1213 1418 fi
3d9a5942
AC
1419 printf "{\n"
1420 printf " if (gdbarch->${function} == 0)\n"
1421 printf " internal_error (\"gdbarch: gdbarch_${function} invalid\");\n"
1422 printf " if (gdbarch_debug >= 2)\n"
1423 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
104c1213
JM
1424 test "${actual}" = "-" && actual=""
1425 if [ "${returntype}" = "void" ]
1426 then
3d9a5942 1427 printf " gdbarch->${function} (${actual});\n"
104c1213 1428 else
3d9a5942 1429 printf " return gdbarch->${function} (${actual});\n"
104c1213 1430 fi
3d9a5942
AC
1431 printf "}\n"
1432 printf "\n"
1433 printf "void\n"
1434 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1435 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1436 printf "{\n"
1437 printf " gdbarch->${function} = ${function};\n"
1438 printf "}\n"
2ada493a
AC
1439 elif class_is_variable_p
1440 then
3d9a5942
AC
1441 printf "\n"
1442 printf "${returntype}\n"
1443 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1444 printf "{\n"
c0e8c252
AC
1445 if [ "${invalid_p}" = "0" ]
1446 then
3d9a5942 1447 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
c0e8c252 1448 elif [ "${invalid_p}" ]
104c1213 1449 then
3d9a5942
AC
1450 printf " if (${invalid_p})\n"
1451 printf " internal_error (\"gdbarch: gdbarch_${function} invalid\");\n"
0b8f9e4d 1452 elif [ "${predefault}" ]
104c1213 1453 then
3d9a5942
AC
1454 printf " if (gdbarch->${function} == ${predefault})\n"
1455 printf " internal_error (\"gdbarch: gdbarch_${function} invalid\");\n"
104c1213 1456 fi
3d9a5942
AC
1457 printf " if (gdbarch_debug >= 2)\n"
1458 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1459 printf " return gdbarch->${function};\n"
1460 printf "}\n"
1461 printf "\n"
1462 printf "void\n"
1463 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1464 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1465 printf "{\n"
1466 printf " gdbarch->${function} = ${function};\n"
1467 printf "}\n"
2ada493a
AC
1468 elif class_is_info_p
1469 then
3d9a5942
AC
1470 printf "\n"
1471 printf "${returntype}\n"
1472 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1473 printf "{\n"
1474 printf " if (gdbarch_debug >= 2)\n"
1475 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1476 printf " return gdbarch->${function};\n"
1477 printf "}\n"
2ada493a 1478 fi
104c1213
JM
1479done
1480
1481# All the trailing guff
1482cat <<EOF
1483
1484
f44c642f 1485/* Keep a registry of per-architecture data-pointers required by GDB
104c1213
JM
1486 modules. */
1487
1488struct gdbarch_data
1489{
1490 int index;
1491};
1492
1493struct gdbarch_data_registration
1494{
1495 gdbarch_data_ftype *init;
1496 struct gdbarch_data *data;
1497 struct gdbarch_data_registration *next;
1498};
1499
f44c642f 1500struct gdbarch_data_registry
104c1213
JM
1501{
1502 int nr;
1503 struct gdbarch_data_registration *registrations;
1504};
1505
f44c642f 1506struct gdbarch_data_registry gdbarch_data_registry =
104c1213
JM
1507{
1508 0, NULL,
1509};
1510
1511struct gdbarch_data *
1512register_gdbarch_data (gdbarch_data_ftype *init)
1513{
1514 struct gdbarch_data_registration **curr;
f44c642f 1515 for (curr = &gdbarch_data_registry.registrations;
104c1213
JM
1516 (*curr) != NULL;
1517 curr = &(*curr)->next);
1518 (*curr) = XMALLOC (struct gdbarch_data_registration);
1519 (*curr)->next = NULL;
1520 (*curr)->init = init;
1521 (*curr)->data = XMALLOC (struct gdbarch_data);
f44c642f 1522 (*curr)->data->index = gdbarch_data_registry.nr++;
104c1213
JM
1523 return (*curr)->data;
1524}
1525
1526
1527/* Walk through all the registered users initializing each in turn. */
1528
1529static void
1530init_gdbarch_data (struct gdbarch *gdbarch)
1531{
1532 struct gdbarch_data_registration *rego;
f44c642f 1533 gdbarch->nr_data = gdbarch_data_registry.nr + 1;
104c1213 1534 gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data);
f44c642f 1535 for (rego = gdbarch_data_registry.registrations;
104c1213
JM
1536 rego != NULL;
1537 rego = rego->next)
1538 {
1539 if (rego->data->index < gdbarch->nr_data)
1540 gdbarch->data[rego->data->index] = rego->init ();
1541 }
1542}
1543
1544
1545/* Return the current value of the specified per-architecture
1546 data-pointer. */
1547
1548void *
34620563 1549gdbarch_data (struct gdbarch_data *data)
104c1213
JM
1550{
1551 if (data->index >= current_gdbarch->nr_data)
1552 internal_error ("gdbarch_data: request for non-existant data.");
1553 return current_gdbarch->data[data->index];
1554}
1555
1556
1557
f44c642f 1558/* Keep a registry of swapped data required by GDB modules. */
104c1213
JM
1559
1560struct gdbarch_swap
1561{
1562 void *swap;
1563 struct gdbarch_swap_registration *source;
1564 struct gdbarch_swap *next;
1565};
1566
1567struct gdbarch_swap_registration
1568{
1569 void *data;
1570 unsigned long sizeof_data;
1571 gdbarch_swap_ftype *init;
1572 struct gdbarch_swap_registration *next;
1573};
1574
f44c642f 1575struct gdbarch_swap_registry
104c1213
JM
1576{
1577 int nr;
1578 struct gdbarch_swap_registration *registrations;
1579};
1580
f44c642f 1581struct gdbarch_swap_registry gdbarch_swap_registry =
104c1213
JM
1582{
1583 0, NULL,
1584};
1585
1586void
1587register_gdbarch_swap (void *data,
1588 unsigned long sizeof_data,
1589 gdbarch_swap_ftype *init)
1590{
1591 struct gdbarch_swap_registration **rego;
f44c642f 1592 for (rego = &gdbarch_swap_registry.registrations;
104c1213
JM
1593 (*rego) != NULL;
1594 rego = &(*rego)->next);
1595 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1596 (*rego)->next = NULL;
1597 (*rego)->init = init;
1598 (*rego)->data = data;
1599 (*rego)->sizeof_data = sizeof_data;
1600}
1601
1602
1603static void
1604init_gdbarch_swap (struct gdbarch *gdbarch)
1605{
1606 struct gdbarch_swap_registration *rego;
1607 struct gdbarch_swap **curr = &gdbarch->swap;
f44c642f 1608 for (rego = gdbarch_swap_registry.registrations;
104c1213
JM
1609 rego != NULL;
1610 rego = rego->next)
1611 {
1612 if (rego->data != NULL)
1613 {
1614 (*curr) = XMALLOC (struct gdbarch_swap);
1615 (*curr)->source = rego;
1616 (*curr)->swap = xmalloc (rego->sizeof_data);
1617 (*curr)->next = NULL;
1618 memset (rego->data, 0, rego->sizeof_data);
1619 curr = &(*curr)->next;
1620 }
1621 if (rego->init != NULL)
1622 rego->init ();
1623 }
1624}
1625
1626static void
1627swapout_gdbarch_swap (struct gdbarch *gdbarch)
1628{
1629 struct gdbarch_swap *curr;
1630 for (curr = gdbarch->swap;
1631 curr != NULL;
1632 curr = curr->next)
1633 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1634}
1635
1636static void
1637swapin_gdbarch_swap (struct gdbarch *gdbarch)
1638{
1639 struct gdbarch_swap *curr;
1640 for (curr = gdbarch->swap;
1641 curr != NULL;
1642 curr = curr->next)
1643 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1644}
1645
1646
f44c642f 1647/* Keep a registry of the architectures known by GDB. */
104c1213 1648
4b9b3959 1649struct gdbarch_registration
104c1213
JM
1650{
1651 enum bfd_architecture bfd_architecture;
1652 gdbarch_init_ftype *init;
4b9b3959 1653 gdbarch_dump_tdep_ftype *dump_tdep;
104c1213 1654 struct gdbarch_list *arches;
4b9b3959 1655 struct gdbarch_registration *next;
104c1213
JM
1656};
1657
f44c642f 1658static struct gdbarch_registration *gdbarch_registry = NULL;
104c1213 1659
b4a20239
AC
1660static void
1661append_name (const char ***buf, int *nr, const char *name)
1662{
1663 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1664 (*buf)[*nr] = name;
1665 *nr += 1;
1666}
1667
1668const char **
1669gdbarch_printable_names (void)
1670{
1671 if (GDB_MULTI_ARCH)
1672 {
1673 /* Accumulate a list of names based on the registed list of
1674 architectures. */
1675 enum bfd_architecture a;
1676 int nr_arches = 0;
1677 const char **arches = NULL;
4b9b3959 1678 struct gdbarch_registration *rego;
f44c642f 1679 for (rego = gdbarch_registry;
b4a20239
AC
1680 rego != NULL;
1681 rego = rego->next)
1682 {
1683 const struct bfd_arch_info *ap;
1684 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1685 if (ap == NULL)
1686 internal_error ("gdbarch_architecture_names: multi-arch unknown");
1687 do
1688 {
1689 append_name (&arches, &nr_arches, ap->printable_name);
1690 ap = ap->next;
1691 }
1692 while (ap != NULL);
1693 }
1694 append_name (&arches, &nr_arches, NULL);
1695 return arches;
1696 }
1697 else
1698 /* Just return all the architectures that BFD knows. Assume that
1699 the legacy architecture framework supports them. */
1700 return bfd_arch_list ();
1701}
1702
1703
104c1213 1704void
4b9b3959
AC
1705gdbarch_register (enum bfd_architecture bfd_architecture,
1706 gdbarch_init_ftype *init,
1707 gdbarch_dump_tdep_ftype *dump_tdep)
104c1213 1708{
4b9b3959 1709 struct gdbarch_registration **curr;
104c1213 1710 const struct bfd_arch_info *bfd_arch_info;
ec3d358c 1711 /* Check that BFD recognizes this architecture */
104c1213
JM
1712 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1713 if (bfd_arch_info == NULL)
1714 {
1715 internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture);
1716 }
1717 /* Check that we haven't seen this architecture before */
f44c642f 1718 for (curr = &gdbarch_registry;
104c1213
JM
1719 (*curr) != NULL;
1720 curr = &(*curr)->next)
1721 {
1722 if (bfd_architecture == (*curr)->bfd_architecture)
1723 internal_error ("gdbarch: Duplicate registraration of architecture (%s)",
1724 bfd_arch_info->printable_name);
1725 }
1726 /* log it */
1727 if (gdbarch_debug)
1728 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1729 bfd_arch_info->printable_name,
1730 (long) init);
1731 /* Append it */
4b9b3959 1732 (*curr) = XMALLOC (struct gdbarch_registration);
104c1213
JM
1733 (*curr)->bfd_architecture = bfd_architecture;
1734 (*curr)->init = init;
4b9b3959 1735 (*curr)->dump_tdep = dump_tdep;
104c1213
JM
1736 (*curr)->arches = NULL;
1737 (*curr)->next = NULL;
8e1a459b
C
1738 /* When non- multi-arch, install whatever target dump routine we've
1739 been provided - hopefully that routine has been written correctly
4b9b3959
AC
1740 and works regardless of multi-arch. */
1741 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1742 && startup_gdbarch.dump_tdep == NULL)
1743 startup_gdbarch.dump_tdep = dump_tdep;
1744}
1745
1746void
1747register_gdbarch_init (enum bfd_architecture bfd_architecture,
1748 gdbarch_init_ftype *init)
1749{
1750 gdbarch_register (bfd_architecture, init, NULL);
104c1213 1751}
104c1213
JM
1752
1753
1754/* Look for an architecture using gdbarch_info. Base search on only
1755 BFD_ARCH_INFO and BYTE_ORDER. */
1756
1757struct gdbarch_list *
1758gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1759 const struct gdbarch_info *info)
1760{
1761 for (; arches != NULL; arches = arches->next)
1762 {
1763 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1764 continue;
1765 if (info->byte_order != arches->gdbarch->byte_order)
1766 continue;
1767 return arches;
1768 }
1769 return NULL;
1770}
1771
1772
1773/* Update the current architecture. Return ZERO if the update request
1774 failed. */
1775
1776int
16f33e29 1777gdbarch_update_p (struct gdbarch_info info)
104c1213
JM
1778{
1779 struct gdbarch *new_gdbarch;
1780 struct gdbarch_list **list;
4b9b3959 1781 struct gdbarch_registration *rego;
104c1213
JM
1782
1783 /* Fill in any missing bits. Most important is the bfd_architecture
1784 which is used to select the target architecture. */
1785 if (info.bfd_architecture == bfd_arch_unknown)
1786 {
1787 if (info.bfd_arch_info != NULL)
1788 info.bfd_architecture = info.bfd_arch_info->arch;
1789 else if (info.abfd != NULL)
1790 info.bfd_architecture = bfd_get_arch (info.abfd);
1791 /* FIXME - should query BFD for its default architecture. */
1792 else
1793 info.bfd_architecture = current_gdbarch->bfd_arch_info->arch;
1794 }
1795 if (info.bfd_arch_info == NULL)
1796 {
1797 if (target_architecture_auto && info.abfd != NULL)
1798 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
1799 else
1800 info.bfd_arch_info = current_gdbarch->bfd_arch_info;
1801 }
1802 if (info.byte_order == 0)
1803 {
1804 if (target_byte_order_auto && info.abfd != NULL)
1805 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
1806 : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
1807 : 0);
1808 else
1809 info.byte_order = current_gdbarch->byte_order;
1810 /* FIXME - should query BFD for its default byte-order. */
1811 }
1812 /* A default for abfd? */
1813
1814 /* Find the target that knows about this architecture. */
f44c642f 1815 for (rego = gdbarch_registry;
4b9b3959
AC
1816 rego != NULL;
1817 rego = rego->next)
1818 if (rego->bfd_architecture == info.bfd_architecture)
1819 break;
104c1213
JM
1820 if (rego == NULL)
1821 {
1822 if (gdbarch_debug)
3d9a5942 1823 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
104c1213
JM
1824 return 0;
1825 }
1826
1827 if (gdbarch_debug)
1828 {
1829 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1830 "gdbarch_update: info.bfd_architecture %d (%s)\\n",
104c1213
JM
1831 info.bfd_architecture,
1832 bfd_lookup_arch (info.bfd_architecture, 0)->printable_name);
1833 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1834 "gdbarch_update: info.bfd_arch_info %s\\n",
104c1213
JM
1835 (info.bfd_arch_info != NULL
1836 ? info.bfd_arch_info->printable_name
1837 : "(null)"));
1838 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1839 "gdbarch_update: info.byte_order %d (%s)\\n",
104c1213
JM
1840 info.byte_order,
1841 (info.byte_order == BIG_ENDIAN ? "big"
1842 : info.byte_order == LITTLE_ENDIAN ? "little"
1843 : "default"));
1844 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1845 "gdbarch_update: info.abfd 0x%lx\\n",
104c1213
JM
1846 (long) info.abfd);
1847 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1848 "gdbarch_update: info.tdep_info 0x%lx\\n",
104c1213
JM
1849 (long) info.tdep_info);
1850 }
1851
1852 /* Ask the target for a replacement architecture. */
1853 new_gdbarch = rego->init (info, rego->arches);
1854
1855 /* Did the target like it? No. Reject the change. */
1856 if (new_gdbarch == NULL)
1857 {
1858 if (gdbarch_debug)
3d9a5942 1859 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
104c1213
JM
1860 return 0;
1861 }
1862
1863 /* Did the architecture change? No. Do nothing. */
1864 if (current_gdbarch == new_gdbarch)
1865 {
1866 if (gdbarch_debug)
3d9a5942 1867 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
104c1213
JM
1868 (long) new_gdbarch,
1869 new_gdbarch->bfd_arch_info->printable_name);
1870 return 1;
1871 }
1872
1873 /* Swap all data belonging to the old target out */
1874 swapout_gdbarch_swap (current_gdbarch);
1875
1876 /* Is this a pre-existing architecture? Yes. Swap it in. */
1877 for (list = &rego->arches;
1878 (*list) != NULL;
1879 list = &(*list)->next)
1880 {
1881 if ((*list)->gdbarch == new_gdbarch)
1882 {
1883 if (gdbarch_debug)
4b9b3959 1884 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1885 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
104c1213
JM
1886 (long) new_gdbarch,
1887 new_gdbarch->bfd_arch_info->printable_name);
1888 current_gdbarch = new_gdbarch;
1889 swapin_gdbarch_swap (new_gdbarch);
1890 return 1;
1891 }
1892 }
4b9b3959 1893
104c1213
JM
1894 /* Append this new architecture to this targets list. */
1895 (*list) = XMALLOC (struct gdbarch_list);
1896 (*list)->next = NULL;
1897 (*list)->gdbarch = new_gdbarch;
1898
1899 /* Switch to this new architecture. Dump it out. */
1900 current_gdbarch = new_gdbarch;
1901 if (gdbarch_debug)
1902 {
1903 fprintf_unfiltered (gdb_stdlog,
3d9a5942 1904 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
104c1213
JM
1905 (long) new_gdbarch,
1906 new_gdbarch->bfd_arch_info->printable_name);
104c1213
JM
1907 }
1908
4b9b3959
AC
1909 /* Check that the newly installed architecture is valid. Plug in
1910 any post init values. */
1911 new_gdbarch->dump_tdep = rego->dump_tdep;
104c1213
JM
1912 verify_gdbarch (new_gdbarch);
1913
1914 /* Initialize the per-architecture memory (swap) areas.
1915 CURRENT_GDBARCH must be update before these modules are
1916 called. */
1917 init_gdbarch_swap (new_gdbarch);
1918
1919 /* Initialize the per-architecture data-pointer of all parties that
1920 registered an interest in this architecture. CURRENT_GDBARCH
1921 must be updated before these modules are called. */
1922 init_gdbarch_data (new_gdbarch);
1923
4b9b3959
AC
1924 if (gdbarch_debug)
1925 gdbarch_dump (current_gdbarch, gdb_stdlog);
1926
104c1213
JM
1927 return 1;
1928}
1929
1930
104c1213
JM
1931/* Disassembler */
1932
1933/* Pointer to the target-dependent disassembly function. */
1934int (*tm_print_insn) (bfd_vma, disassemble_info *);
1935disassemble_info tm_print_insn_info;
1936
1937
104c1213 1938extern void _initialize_gdbarch (void);
b4a20239 1939
104c1213 1940void
34620563 1941_initialize_gdbarch (void)
104c1213 1942{
59233f88
AC
1943 struct cmd_list_element *c;
1944
104c1213
JM
1945 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
1946 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
1947 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
1948 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
1949 tm_print_insn_info.print_address_func = dis_asm_print_address;
1950
59233f88 1951 add_show_from_set (add_set_cmd ("arch",
104c1213
JM
1952 class_maintenance,
1953 var_zinteger,
1954 (char *)&gdbarch_debug,
3d9a5942 1955 "Set architecture debugging.\\n\\
59233f88
AC
1956When non-zero, architecture debugging is enabled.", &setdebuglist),
1957 &showdebuglist);
1958 c = add_set_cmd ("archdebug",
1959 class_maintenance,
1960 var_zinteger,
1961 (char *)&gdbarch_debug,
3d9a5942 1962 "Set architecture debugging.\\n\\
59233f88
AC
1963When non-zero, architecture debugging is enabled.", &setlist);
1964
1965 deprecate_cmd (c, "set debug arch");
1966 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
104c1213
JM
1967}
1968EOF
1969
1970# close things off
1971exec 1>&2
1972#../move-if-change new-gdbarch.c gdbarch.c
59233f88 1973compare_new gdbarch.c
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