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104c1213 JM |
1 | #!/usr/local/bin/bash |
2 | ||
3 | # Architecture commands for GDB, the GNU debugger. | |
4 | # Copyright 1998-1999 Free Software Foundation, Inc. | |
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 | ||
c4093a6a | 22 | read="class level macro returntype function formal actual attrib default init invalid_p fmt print print_p description" |
104c1213 | 23 | |
cff3e48b JM |
24 | # dump out/verify the doco |
25 | for field in ${read} | |
26 | do | |
27 | case ${field} in | |
28 | ||
29 | class ) : ;; | |
c4093a6a | 30 | |
cff3e48b JM |
31 | # # -> line disable |
32 | # f -> function | |
33 | # hiding a function | |
34 | # v -> variable | |
35 | # hiding a variable | |
36 | # i -> set from info | |
37 | # hiding something from the ``struct info'' object | |
38 | ||
39 | level ) : ;; | |
40 | ||
41 | # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= | |
42 | # LEVEL is a predicate on checking that a given method is | |
c4093a6a | 43 | # initialized (using INVALID_P). |
cff3e48b JM |
44 | |
45 | macro ) : ;; | |
46 | ||
47 | # The name of the MACRO that this method is to be accessed by. | |
48 | ||
49 | returntype ) : ;; | |
50 | ||
51 | # For functions, the return type; for variables, the data type | |
52 | ||
53 | function ) : ;; | |
54 | ||
55 | # For functions, the member function name; for variables, the | |
56 | # variable name. Member function names are always prefixed with | |
57 | # ``gdbarch_'' for name-space purity. | |
58 | ||
59 | formal ) : ;; | |
60 | ||
61 | # The formal argument list. It is assumed that the formal | |
62 | # argument list includes the actual name of each list element. | |
63 | # A function with no arguments shall have ``void'' as the formal | |
64 | # argument list. | |
65 | ||
66 | actual ) : ;; | |
67 | ||
68 | # The list of actual arguments. The arguments specified shall | |
69 | # match the FORMAL list given above. Functions with out | |
70 | # arguments leave this blank. | |
71 | ||
72 | attrib ) : ;; | |
73 | ||
74 | # Any GCC attributes that should be attached to the function | |
75 | # declaration. At present this field is unused. | |
76 | ||
77 | default ) : ;; | |
78 | ||
79 | # To help with the GDB startup a default static gdbarch object | |
c4093a6a JM |
80 | # is created. DEFAULT is the value to insert into the static |
81 | # gdbarch object. If empty ZERO is used. | |
cff3e48b JM |
82 | |
83 | init ) : ;; | |
84 | ||
c4093a6a JM |
85 | # Any initial value to assign to a new gdbarch object after it |
86 | # as been malloc()ed. Zero is used by default. | |
cff3e48b | 87 | |
c4093a6a | 88 | invalid_p ) : ;; |
cff3e48b | 89 | |
c4093a6a JM |
90 | # A predicate equation that validates MEMBER. Non-zero is returned |
91 | # if the code creating the new architecture failed to initialize | |
92 | # the MEMBER or initialized the member to something invalid. | |
93 | # By default, a check that the value is no longer equal to INIT | |
94 | # is performed. The equation ``0'' disables the invalid_p check. | |
cff3e48b JM |
95 | |
96 | fmt ) : ;; | |
97 | ||
98 | # printf style format string that can be used to print out the | |
99 | # MEMBER. The default is to assume "%ld" is safe. Sometimes | |
100 | # "%s" is useful. For functions, this is ignored and the | |
101 | # function address is printed. | |
102 | ||
103 | print ) : ;; | |
104 | ||
105 | # An optional equation that converts the MEMBER into a value | |
106 | # suitable for that FMT. By default it is assumed that the | |
107 | # member's MACRO cast to long is safe. | |
108 | ||
109 | print_p ) : ;; | |
110 | ||
111 | # An optional indicator for any predicte to wrap around the | |
112 | # print member code. | |
113 | # # -> Wrap print up in ``#ifdef MACRO'' | |
114 | # exp -> Wrap print up in ``if (${print_p}) ... | |
115 | ||
116 | description ) : ;; | |
117 | ||
118 | # Currently unused. | |
119 | ||
120 | *) exit 1;; | |
121 | esac | |
122 | done | |
123 | ||
124 | IFS=: | |
125 | ||
104c1213 JM |
126 | function_list () |
127 | { | |
cff3e48b | 128 | # See below (DOCO) for description of each field |
104c1213 JM |
129 | cat <<EOF | |
130 | i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct:::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL | |
131 | # | |
132 | i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN | |
133 | # | |
c4093a6a | 134 | v:1:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address:0 |
104c1213 JM |
135 | v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0 |
136 | #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0 | |
137 | v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0 | |
138 | v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0 | |
139 | v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0 | |
140 | v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0 | |
141 | v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0 | |
142 | v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0 | |
143 | v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0 | |
144 | # | |
145 | f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0 | |
146 | f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0 | |
147 | f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0 | |
148 | f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0 | |
149 | f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0 | |
150 | f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0 | |
151 | # | |
152 | v:2:NUM_REGS:int:num_regs::::0:-1 | |
153 | v:2:SP_REGNUM:int:sp_regnum::::0:-1 | |
154 | v:2:FP_REGNUM:int:fp_regnum::::0:-1 | |
155 | v:2:PC_REGNUM:int:pc_regnum::::0:-1 | |
156 | f:2:REGISTER_NAME:char *:register_name:int regnr:regnr::0:0 | |
157 | v:2:REGISTER_SIZE:int:register_size::::0:-1 | |
158 | v:2:REGISTER_BYTES:int:register_bytes::::0:-1 | |
159 | f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0 | |
160 | f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0 | |
161 | v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1 | |
162 | f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0 | |
163 | v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1 | |
164 | f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0 | |
165 | # | |
166 | v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 | |
167 | v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0 | |
168 | f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0:gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0: | |
169 | v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1::0x%08lx | |
170 | v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::0x%08lx | |
171 | v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1 | |
172 | v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END | |
173 | f: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 | |
174 | v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 | |
175 | v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:::0x%08lx | |
176 | v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:::0x%08lx | |
177 | v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1::0x%08lx | |
178 | v: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 | |
179 | f: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::0:0 | |
180 | # | |
181 | v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0:::::# | |
182 | v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0:::::# | |
183 | f: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 | |
184 | # | |
185 | f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr::0:0 | |
186 | f: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 | |
187 | f: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 | |
188 | # | |
189 | f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 | |
190 | f: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 | |
191 | f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-::0:0 | |
192 | f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp::0:0 | |
193 | f:2:POP_FRAME:void:pop_frame:void:-::0:0 | |
194 | # | |
195 | # I wish that these would just go away.... | |
196 | f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x::0:0 | |
197 | f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x::0:0 | |
198 | f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x::0:0 | |
199 | f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x::0:0 | |
200 | f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x::0:0 | |
201 | f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x::0:0 | |
202 | # | |
203 | f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp::0:0 | |
204 | f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf::0:0 | |
205 | f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf::0:0 | |
206 | f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::0:0 | |
207 | # | |
208 | f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0 | |
209 | f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame::0:0 | |
210 | # | |
211 | f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 | |
212 | f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 | |
213 | f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:0 | |
917317f4 JM |
214 | f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint:0 |
215 | f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint:0 | |
104c1213 JM |
216 | v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 |
217 | v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1 | |
218 | # | |
219 | f: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::0:0 | |
220 | # | |
221 | v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1 | |
222 | f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi::0:0 | |
223 | f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 | |
224 | f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 | |
225 | f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 | |
226 | f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 | |
227 | f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 | |
228 | f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 | |
229 | f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 | |
230 | # | |
231 | EOF | |
232 | grep -v '^#' | |
233 | } | |
234 | ||
235 | ||
236 | # dump it out | |
237 | if true | |
238 | then | |
239 | exec > new-gdbarch | |
240 | function_list | while eval read $read | |
241 | do | |
242 | cat <<EOF | |
243 | ${class} ${macro}(${actual}) | |
244 | ${returntype} ${function} ($formal)${attrib} | |
245 | level=${level} | |
246 | default=${default} | |
247 | init=${init} | |
c4093a6a | 248 | invalid_p=${invalid_p} |
104c1213 JM |
249 | fmt=${fmt} |
250 | print=${print} | |
251 | print_p=${print_p} | |
252 | description=${description} | |
253 | EOF | |
254 | done | |
255 | exec 1>&2 | |
256 | fi | |
257 | ||
258 | copyright () | |
259 | { | |
260 | cat <<EOF | |
261 | /* Dynamic architecture support for GDB, the GNU debugger. | |
262 | Copyright 1998-1999, Free Software Foundation, Inc. | |
263 | ||
264 | This file is part of GDB. | |
265 | ||
266 | This program is free software; you can redistribute it and/or modify | |
267 | it under the terms of the GNU General Public License as published by | |
268 | the Free Software Foundation; either version 2 of the License, or | |
269 | (at your option) any later version. | |
270 | ||
271 | This program is distributed in the hope that it will be useful, | |
272 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
273 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
274 | GNU General Public License for more details. | |
275 | ||
276 | You should have received a copy of the GNU General Public License | |
277 | along with this program; if not, write to the Free Software | |
278 | Foundation, Inc., 59 Temple Place - Suite 330, | |
279 | Boston, MA 02111-1307, USA. */ | |
280 | ||
281 | /* *INDENT-OFF* */ /* \`\`typedef (f)();'' confuses indent */ | |
282 | ||
283 | /* This file was created with the aid of \`\`gdbarch.sh''. | |
284 | ||
285 | The bourn shell script \`\`gdbarch.sh'' creates the files | |
286 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them | |
287 | against the existing \`\`gdbarch.[hc]''. Any differences found | |
288 | being reported. | |
289 | ||
290 | If editing this file, please also run gdbarch.sh and merge any | |
291 | changes into that script. Conversely, when makeing sweeping changes | |
292 | to this file, modifying gdbarch.sh and using its output may prove | |
293 | easier. */ | |
294 | ||
295 | EOF | |
296 | } | |
297 | ||
298 | # | |
299 | # The .h file | |
300 | # | |
301 | ||
302 | exec > new-gdbarch.h | |
303 | copyright | |
304 | cat <<EOF | |
305 | #ifndef GDBARCH_H | |
306 | #define GDBARCH_H | |
307 | ||
308 | struct frame_info; | |
309 | struct value; | |
310 | ||
311 | ||
312 | #ifndef GDB_MULTI_ARCH | |
313 | #define GDB_MULTI_ARCH 0 | |
314 | #endif | |
315 | ||
316 | extern struct gdbarch *current_gdbarch; | |
317 | ||
318 | ||
319 | /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH | |
320 | macro */ | |
321 | ||
322 | ||
323 | /* If any of the following are defined, the target wasn't correctly | |
324 | converted. */ | |
325 | ||
326 | #if GDB_MULTI_ARCH | |
327 | #if defined (CALL_DUMMY) | |
328 | #error "CALL_DUMMY: replaced by CALL_DUMMY_WORDS/SIZEOF_CALL_DUMMY_WORDS" | |
329 | #endif | |
330 | #endif | |
331 | ||
332 | #if GDB_MULTI_ARCH | |
333 | #if defined (REGISTER_NAMES) | |
334 | #error "REGISTER_NAMES: replaced by REGISTER_NAME" | |
335 | #endif | |
336 | #endif | |
337 | ||
338 | #if GDB_MULTI_ARCH | |
339 | #if defined (EXTRA_FRAME_INFO) | |
340 | #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info" | |
341 | #endif | |
342 | #endif | |
343 | ||
344 | #if GDB_MULTI_ARCH | |
345 | #if defined (FRAME_FIND_SAVED_REGS) | |
346 | #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS" | |
347 | #endif | |
348 | #endif | |
349 | EOF | |
350 | ||
351 | # function typedef's | |
352 | echo "" | |
353 | echo "" | |
354 | echo "/* The following are pre-initialized by GDBARCH. */" | |
355 | function_list | while eval read $read | |
356 | do | |
357 | case "${class}" in | |
358 | "i" ) | |
359 | echo "" | |
360 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" | |
361 | echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */" | |
362 | echo "#if GDB_MULTI_ARCH" | |
363 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" | |
364 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" | |
365 | echo "#endif" | |
366 | echo "#endif" | |
367 | ;; | |
368 | esac | |
369 | done | |
370 | ||
371 | # function typedef's | |
372 | echo "" | |
373 | echo "" | |
374 | echo "/* The following are initialized by the target dependant code. */" | |
375 | function_list | while eval read $read | |
376 | do | |
377 | case "${class}" in | |
378 | "v" ) | |
379 | echo "" | |
380 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" | |
381 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});" | |
382 | echo "#if GDB_MULTI_ARCH" | |
383 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" | |
384 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" | |
385 | echo "#endif" | |
386 | echo "#endif" | |
387 | ;; | |
388 | "f" ) | |
389 | echo "" | |
390 | echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});" | |
391 | if [ "${formal}" = "void" ] | |
392 | then | |
393 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" | |
394 | else | |
395 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});" | |
396 | fi | |
397 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});" | |
398 | echo "#if GDB_MULTI_ARCH" | |
399 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" | |
400 | if [ "${actual}" = "" ] | |
401 | then | |
402 | echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))" | |
403 | elif [ "${actual}" = "-" ] | |
404 | then | |
405 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" | |
406 | else | |
407 | echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" | |
408 | fi | |
409 | echo "#endif" | |
410 | echo "#endif" | |
411 | ;; | |
412 | esac | |
413 | done | |
414 | ||
415 | # close it off | |
416 | cat <<EOF | |
417 | ||
418 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); | |
419 | ||
420 | ||
421 | /* Mechanism for co-ordinating the selection of a specific | |
422 | architecture. | |
423 | ||
424 | GDB targets (*-tdep.c) can register an interest in a specific | |
425 | architecture. Other GDB components can register a need to maintain | |
426 | per-architecture data. | |
427 | ||
428 | The mechanisms below ensures that there is only a loose connection | |
429 | between the set-architecture command and the various GDB | |
430 | components. Each component can independantly register their need | |
431 | to maintain architecture specific data with gdbarch. | |
432 | ||
433 | Pragmatics: | |
434 | ||
435 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It | |
436 | didn't scale. | |
437 | ||
438 | The more traditional mega-struct containing architecture specific | |
439 | data for all the various GDB components was also considered. Since | |
440 | GDB is built from a variable number of (fairly independant) | |
441 | components it was determined that the global aproach was not | |
442 | applicable. */ | |
443 | ||
444 | ||
445 | /* Register a new architectural family with GDB. | |
446 | ||
447 | Register support for the specified ARCHITECTURE with GDB. When | |
448 | gdbarch determines that the specified architecture has been | |
449 | selected, the corresponding INIT function is called. | |
450 | ||
451 | -- | |
452 | ||
453 | The INIT function takes two parameters: INFO which contains the | |
454 | information available to gdbarch about the (possibly new) | |
455 | architecture; ARCHES which is a list of the previously created | |
456 | \`\`struct gdbarch'' for this architecture. | |
457 | ||
458 | The INIT function parameter INFO shall, as far as possible, be | |
459 | pre-initialized with information obtained from INFO.ABFD or | |
460 | previously selected architecture (if similar). INIT shall ensure | |
461 | that the INFO.BYTE_ORDER is non-zero. | |
462 | ||
463 | The INIT function shall return any of: NULL - indicating that it | |
464 | doesn't reconize the selected architecture; an existing \`\`struct | |
465 | gdbarch'' from the ARCHES list - indicating that the new | |
466 | architecture is just a synonym for an earlier architecture (see | |
467 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' | |
468 | - that describes the selected architecture (see | |
469 | gdbarch_alloc()). */ | |
470 | ||
471 | struct gdbarch_list | |
472 | { | |
473 | struct gdbarch *gdbarch; | |
474 | struct gdbarch_list *next; | |
475 | }; | |
476 | ||
477 | struct gdbarch_info | |
478 | { | |
479 | /* Use default: bfd_arch_unknown (ZERO). */ | |
480 | enum bfd_architecture bfd_architecture; | |
481 | ||
482 | /* Use default: NULL (ZERO). */ | |
483 | const struct bfd_arch_info *bfd_arch_info; | |
484 | ||
485 | /* Use default: 0 (ZERO). */ | |
486 | int byte_order; | |
487 | ||
488 | /* Use default: NULL (ZERO). */ | |
489 | bfd *abfd; | |
490 | ||
491 | /* Use default: NULL (ZERO). */ | |
492 | struct gdbarch_tdep_info *tdep_info; | |
493 | }; | |
494 | ||
495 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); | |
496 | ||
497 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); | |
498 | ||
499 | ||
500 | /* Helper function. Search the list of ARCHES for a GDBARCH that | |
501 | matches the information provided by INFO. */ | |
502 | ||
503 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); | |
504 | ||
505 | ||
506 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform | |
507 | basic initialization using values obtained from the INFO andTDEP | |
508 | parameters. set_gdbarch_*() functions are called to complete the | |
509 | initialization of the object. */ | |
510 | ||
511 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); | |
512 | ||
513 | ||
514 | /* Helper function. Force an update of the current architecture. Used | |
515 | by legacy targets that have added their own target specific | |
516 | architecture manipulation commands. | |
517 | ||
518 | The INFO parameter shall be fully initialized (\`\`memset (&INFO, | |
519 | sizeof (info), 0)'' set relevant fields) before gdbarch_update() is | |
520 | called. gdbarch_update() shall initialize any \`\`default'' fields | |
521 | using information obtained from the previous architecture or | |
522 | INFO.ABFD (if specified) before calling the corresponding | |
523 | architectures INIT function. */ | |
524 | ||
525 | extern int gdbarch_update (struct gdbarch_info info); | |
526 | ||
527 | ||
528 | ||
529 | /* Register per-architecture data-pointer. | |
530 | ||
531 | Reserve space for a per-architecture data-pointer. An identifier | |
532 | for the reserved data-pointer is returned. That identifer should | |
533 | be saved in a local static. | |
534 | ||
535 | When a new architecture is selected, INIT() is called. When a | |
536 | previous architecture is re-selected, the per-architecture | |
537 | data-pointer for that previous architecture is restored (INIT() is | |
538 | not called). | |
539 | ||
540 | INIT() shall return the initial value for the per-architecture | |
541 | data-pointer for the current architecture. | |
542 | ||
543 | Multiple registrarants for any architecture are allowed (and | |
544 | strongly encouraged). */ | |
545 | ||
546 | typedef void *(gdbarch_data_ftype) (void); | |
547 | extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init); | |
548 | ||
549 | /* Return the value of the per-architecture data-pointer for the | |
550 | current architecture. */ | |
551 | ||
552 | extern void *gdbarch_data (struct gdbarch_data*); | |
553 | ||
554 | ||
555 | ||
556 | /* Register per-architecture memory region. | |
557 | ||
558 | Provide a memory-region swap mechanism. Per-architecture memory | |
559 | region are created. These memory regions are swapped whenever the | |
560 | architecture is changed. For a new architecture, the memory region | |
561 | is initialized with zero (0) and the INIT function is called. | |
562 | ||
563 | Memory regions are swapped / initialized in the order that they are | |
564 | registered. NULL DATA and/or INIT values can be specified. | |
565 | ||
566 | New code should use register_gdbarch_data(). */ | |
567 | ||
568 | typedef void (gdbarch_swap_ftype) (void); | |
569 | extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); | |
e514a9d6 | 570 | #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) |
104c1213 JM |
571 | |
572 | ||
573 | ||
574 | /* The target-system-dependant byte order is dynamic */ | |
575 | ||
576 | /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness | |
577 | is selectable at runtime. The user can use the \`\`set endian'' | |
578 | command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when | |
579 | target_byte_order should be auto-detected (from the program image | |
580 | say). */ | |
581 | ||
582 | #if GDB_MULTI_ARCH | |
583 | /* Multi-arch GDB is always bi-endian. */ | |
584 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 | |
585 | #endif | |
586 | ||
587 | #ifndef TARGET_BYTE_ORDER_SELECTABLE_P | |
588 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE | |
589 | when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ | |
590 | #ifdef TARGET_BYTE_ORDER_SELECTABLE | |
591 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 | |
592 | #else | |
593 | #define TARGET_BYTE_ORDER_SELECTABLE_P 0 | |
594 | #endif | |
595 | #endif | |
596 | ||
597 | extern int target_byte_order; | |
598 | #ifdef TARGET_BYTE_ORDER_SELECTABLE | |
599 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE | |
600 | and expect defs.h to re-define TARGET_BYTE_ORDER. */ | |
601 | #undef TARGET_BYTE_ORDER | |
602 | #endif | |
603 | #ifndef TARGET_BYTE_ORDER | |
604 | #define TARGET_BYTE_ORDER (target_byte_order + 0) | |
605 | #endif | |
606 | ||
607 | extern int target_byte_order_auto; | |
608 | #ifndef TARGET_BYTE_ORDER_AUTO | |
609 | #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) | |
610 | #endif | |
611 | ||
612 | ||
613 | ||
614 | /* The target-system-dependant BFD architecture is dynamic */ | |
615 | ||
616 | extern int target_architecture_auto; | |
617 | #ifndef TARGET_ARCHITECTURE_AUTO | |
618 | #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) | |
619 | #endif | |
620 | ||
621 | extern const struct bfd_arch_info *target_architecture; | |
622 | #ifndef TARGET_ARCHITECTURE | |
623 | #define TARGET_ARCHITECTURE (target_architecture + 0) | |
624 | #endif | |
625 | ||
626 | /* Notify the target dependant backend of a change to the selected | |
627 | architecture. A zero return status indicates that the target did | |
628 | not like the change. */ | |
629 | ||
630 | extern int (*target_architecture_hook) (const struct bfd_arch_info *); | |
631 | ||
632 | ||
633 | ||
634 | /* The target-system-dependant disassembler is semi-dynamic */ | |
635 | ||
636 | #include "dis-asm.h" /* Get defs for disassemble_info */ | |
637 | ||
638 | extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, | |
639 | int len, disassemble_info *info); | |
640 | ||
641 | extern void dis_asm_memory_error (int status, bfd_vma memaddr, | |
642 | disassemble_info *info); | |
643 | ||
644 | extern void dis_asm_print_address (bfd_vma addr, | |
645 | disassemble_info *info); | |
646 | ||
647 | extern int (*tm_print_insn) (bfd_vma, disassemble_info*); | |
648 | extern disassemble_info tm_print_insn_info; | |
649 | #ifndef TARGET_PRINT_INSN | |
650 | #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) | |
651 | #endif | |
652 | #ifndef TARGET_PRINT_INSN_INFO | |
653 | #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) | |
654 | #endif | |
655 | ||
656 | ||
657 | ||
658 | /* Explicit test for D10V architecture. | |
659 | USE of these macro's is *STRONGLY* discouraged. */ | |
660 | ||
661 | #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v) | |
662 | #ifndef D10V_MAKE_DADDR | |
663 | #define D10V_MAKE_DADDR(X) (internal_error ("gdbarch: D10V_MAKE_DADDR"), 0) | |
664 | #endif | |
665 | #ifndef D10V_MAKE_IADDR | |
666 | #define D10V_MAKE_IADDR(X) (internal_error ("gdbarch: D10V_MAKE_IADDR"), 0) | |
667 | #endif | |
668 | ||
669 | ||
670 | /* Fallback definition of FRAMELESS_FUNCTION_INVOCATION */ | |
671 | #ifndef FRAMELESS_FUNCTION_INVOCATION | |
672 | #define FRAMELESS_FUNCTION_INVOCATION(FI) (0) | |
673 | #endif | |
674 | ||
675 | ||
676 | /* Fallback definition of REGISTER_CONVERTIBLE etc */ | |
677 | extern int generic_register_convertible_not (int reg_nr); | |
678 | #ifndef REGISTER_CONVERTIBLE | |
679 | #define REGISTER_CONVERTIBLE(x) (0) | |
680 | #endif | |
681 | #ifndef REGISTER_CONVERT_TO_VIRTUAL | |
682 | #define REGISTER_CONVERT_TO_VIRTUAL(x, y, z, a) | |
683 | #endif | |
684 | #ifndef REGISTER_CONVERT_TO_RAW | |
685 | #define REGISTER_CONVERT_TO_RAW(x, y, z, a) | |
686 | #endif | |
687 | ||
688 | ||
689 | /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */ | |
690 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS | |
691 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0) | |
692 | #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0) | |
693 | #else | |
694 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P | |
695 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1) | |
696 | #endif | |
697 | #endif | |
698 | ||
699 | ||
700 | /* Fallback definition for REGISTER_NAME for systems still defining | |
701 | REGISTER_NAMES. */ | |
702 | #ifndef REGISTER_NAME | |
703 | extern char *gdb_register_names[]; | |
704 | #define REGISTER_NAME(i) gdb_register_names[i] | |
705 | #endif | |
706 | ||
707 | ||
708 | /* Set the dynamic target-system-dependant parameters (architecture, | |
709 | byte-order, ...) using information found in the BFD */ | |
710 | ||
711 | extern void set_gdbarch_from_file (bfd *); | |
712 | ||
713 | ||
714 | /* Explicitly set the dynamic target-system-dependant parameters based | |
715 | on bfd_architecture and machine. */ | |
716 | ||
717 | extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); | |
718 | ||
719 | ||
e514a9d6 JM |
720 | /* Initialize the current architecture to the "first" one we find on |
721 | our list. */ | |
722 | ||
723 | extern void initialize_current_architecture (void); | |
724 | ||
104c1213 JM |
725 | /* Helper function for targets that don't know how my arguments are |
726 | being passed */ | |
727 | ||
728 | extern int frame_num_args_unknown (struct frame_info *fi); | |
729 | ||
730 | ||
731 | /* gdbarch trace variable */ | |
732 | extern int gdbarch_debug; | |
733 | ||
734 | extern void gdbarch_dump (void); | |
735 | ||
736 | #endif | |
737 | EOF | |
738 | exec 1>&2 | |
739 | #../move-if-change new-gdbarch.h gdbarch.h | |
740 | if ! test -r gdbarch.h | |
741 | then | |
742 | echo "gdbarch.h missing? cp new-gdbarch.h gdbarch.h" 1>&2 | |
743 | elif diff -c gdbarch.h new-gdbarch.h | |
744 | then | |
745 | echo "gdbarch.h unchanged" 1>&2 | |
746 | else | |
747 | echo "gdbarch.h has changed? cp new-gdbarch.h gdbarch.h" 1>&2 | |
748 | fi | |
749 | ||
750 | ||
751 | # | |
752 | # C file | |
753 | # | |
754 | ||
755 | exec > new-gdbarch.c | |
756 | copyright | |
757 | cat <<EOF | |
758 | ||
759 | #include "defs.h" | |
760 | ||
761 | #if GDB_MULTI_ARCH | |
762 | #include "gdbcmd.h" | |
763 | #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ | |
764 | #else | |
765 | /* Just include everything in sight so that the every old definition | |
766 | of macro is visible. */ | |
767 | #include "gdb_string.h" | |
768 | #include <ctype.h> | |
769 | #include "symtab.h" | |
770 | #include "frame.h" | |
771 | #include "inferior.h" | |
772 | #include "breakpoint.h" | |
773 | #include "wait.h" | |
774 | #include "gdbcore.h" | |
775 | #include "gdbcmd.h" | |
776 | #include "target.h" | |
777 | #include "gdbthread.h" | |
778 | #include "annotate.h" | |
779 | #include "symfile.h" /* for overlay functions */ | |
780 | #endif | |
781 | #include "symcat.h" | |
782 | ||
783 | ||
784 | /* Static function declarations */ | |
785 | ||
786 | static void verify_gdbarch (struct gdbarch *gdbarch); | |
787 | static void init_gdbarch_data (struct gdbarch *); | |
788 | static void init_gdbarch_swap (struct gdbarch *); | |
789 | static void swapout_gdbarch_swap (struct gdbarch *); | |
790 | static void swapin_gdbarch_swap (struct gdbarch *); | |
791 | ||
792 | /* Convenience macro for allocting typesafe memory. */ | |
793 | ||
794 | #ifndef XMALLOC | |
795 | #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) | |
796 | #endif | |
797 | ||
798 | ||
799 | /* Non-zero if we want to trace architecture code. */ | |
800 | ||
801 | #ifndef GDBARCH_DEBUG | |
802 | #define GDBARCH_DEBUG 0 | |
803 | #endif | |
804 | int gdbarch_debug = GDBARCH_DEBUG; | |
805 | ||
806 | EOF | |
807 | ||
808 | # gdbarch open the gdbarch object | |
809 | echo "" | |
810 | echo "/* Maintain the struct gdbarch object */" | |
811 | echo "" | |
812 | echo "struct gdbarch" | |
813 | echo "{" | |
814 | echo " /* basic architectural information */" | |
815 | function_list | while eval read $read | |
816 | do | |
817 | case "${class}" in | |
818 | "i" ) echo " ${returntype} ${function};" ;; | |
819 | esac | |
820 | done | |
821 | echo "" | |
822 | echo " /* target specific vector. */" | |
823 | echo " struct gdbarch_tdep *tdep;" | |
824 | echo "" | |
825 | echo " /* per-architecture data-pointers */" | |
826 | echo " int nr_data;" | |
827 | echo " void **data;" | |
828 | echo "" | |
829 | echo " /* per-architecture swap-regions */" | |
830 | echo " struct gdbarch_swap *swap;" | |
831 | echo "" | |
832 | cat <<EOF | |
833 | /* Multi-arch values. | |
834 | ||
835 | When extending this structure you must: | |
836 | ||
837 | Add the field below. | |
838 | ||
839 | Declare set/get functions and define the corresponding | |
840 | macro in gdbarch.h. | |
841 | ||
842 | gdbarch_alloc(): If zero/NULL is not a suitable default, | |
843 | initialize the new field. | |
844 | ||
845 | verify_gdbarch(): Confirm that the target updated the field | |
846 | correctly. | |
847 | ||
848 | gdbarch_dump(): Add a fprintf_unfiltered call to so that the new | |
849 | field is dumped out | |
850 | ||
851 | \`\`default_gdbarch()'': Append an initial value to the static | |
852 | variable (base values on the host's c-type system). | |
853 | ||
854 | get_gdbarch(): Implement the set/get functions (probably using | |
855 | the macro's as shortcuts). | |
856 | ||
857 | */ | |
858 | ||
859 | EOF | |
860 | function_list | while eval read $read | |
861 | do | |
862 | case "${class}" in | |
863 | "v" ) echo " ${returntype} ${function};" ;; | |
864 | "f" ) echo " gdbarch_${function}_ftype *${function}${attrib};" ;; | |
865 | esac | |
866 | done | |
867 | echo "};" | |
868 | ||
869 | # A pre-initialized vector | |
870 | echo "" | |
871 | echo "" | |
872 | cat <<EOF | |
873 | /* The default architecture uses host values (for want of a better | |
874 | choice). */ | |
875 | EOF | |
876 | echo "" | |
877 | echo "extern const struct bfd_arch_info bfd_default_arch_struct;" | |
878 | echo "" | |
879 | echo "struct gdbarch default_gdbarch = {" | |
880 | echo " /* basic architecture information */" | |
881 | function_list | while eval read $read | |
882 | do | |
883 | case "${class}" in | |
884 | "i" ) echo " ${default}," ;; | |
885 | esac | |
886 | done | |
887 | cat <<EOF | |
888 | /* target specific vector */ | |
889 | NULL, | |
890 | /*per-architecture data-pointers and swap regions */ | |
891 | 0, NULL, NULL, | |
892 | /* Multi-arch values */ | |
893 | EOF | |
894 | function_list | while eval read $read | |
895 | do | |
896 | case "${class}" in | |
897 | "f" | "v" ) echo " ${default}," ;; | |
898 | esac | |
899 | done | |
900 | cat <<EOF | |
901 | /* default_gdbarch() */ | |
902 | }; | |
903 | struct gdbarch *current_gdbarch = &default_gdbarch; | |
904 | EOF | |
905 | ||
906 | # Create a new gdbarch struct | |
907 | echo "" | |
908 | echo "" | |
909 | cat <<EOF | |
910 | /* Create a new \`\`struct gdbarch'' based in information provided by | |
911 | \`\`struct gdbarch_info''. */ | |
912 | EOF | |
913 | echo "" | |
914 | cat <<EOF | |
915 | struct gdbarch * | |
916 | gdbarch_alloc (const struct gdbarch_info *info, | |
917 | struct gdbarch_tdep *tdep) | |
918 | { | |
919 | struct gdbarch *gdbarch = XMALLOC (struct gdbarch); | |
920 | memset (gdbarch, 0, sizeof (*gdbarch)); | |
921 | ||
922 | gdbarch->tdep = tdep; | |
923 | EOF | |
924 | echo "" | |
925 | function_list | while eval read $read | |
926 | do | |
927 | case "${class}" in | |
928 | "i" ) echo " gdbarch->${function} = info->${function};" | |
929 | esac | |
930 | done | |
931 | echo "" | |
932 | echo " /* Force the explicit initialization of these. */" | |
933 | function_list | while eval read $read | |
934 | do | |
935 | case "${class}" in | |
936 | "f" | "v" ) | |
937 | if [ "${init}" != "" -a "${init}" != "0" ] | |
938 | then | |
939 | echo " gdbarch->${function} = ${init};" | |
940 | fi | |
941 | ;; | |
942 | esac | |
943 | done | |
944 | cat <<EOF | |
945 | /* gdbarch_alloc() */ | |
946 | ||
947 | return gdbarch; | |
948 | } | |
949 | EOF | |
950 | ||
951 | # verify a new architecture | |
952 | echo "" | |
953 | echo "" | |
954 | echo "/* Ensure that all values in a GDBARCH are reasonable. */" | |
955 | echo "" | |
956 | cat <<EOF | |
957 | static void | |
958 | verify_gdbarch (struct gdbarch *gdbarch) | |
959 | { | |
960 | /* Only perform sanity checks on a multi-arch target. */ | |
961 | if (GDB_MULTI_ARCH <= 0) | |
962 | return; | |
963 | /* fundamental */ | |
964 | if (gdbarch->byte_order == 0) | |
965 | internal_error ("verify_gdbarch: byte-order unset"); | |
966 | if (gdbarch->bfd_arch_info == NULL) | |
967 | internal_error ("verify_gdbarch: bfd_arch_info unset"); | |
968 | /* Check those that need to be defined for the given multi-arch level. */ | |
969 | EOF | |
970 | function_list | while eval read $read | |
971 | do | |
972 | case "${class}" in | |
973 | "f" | "v" ) | |
c4093a6a | 974 | if [ "${invalid_p}" ] |
104c1213 JM |
975 | then |
976 | echo " if ((GDB_MULTI_ARCH >= ${level})" | |
c4093a6a | 977 | echo " && (${invalid_p}))" |
104c1213 JM |
978 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
979 | elif [ "${init}" ] | |
980 | then | |
981 | echo " if ((GDB_MULTI_ARCH >= ${level})" | |
982 | echo " && (gdbarch->${function} == ${init}))" | |
983 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" | |
984 | fi | |
985 | ;; | |
986 | esac | |
987 | done | |
988 | cat <<EOF | |
989 | } | |
990 | EOF | |
991 | ||
992 | # dump the structure | |
993 | echo "" | |
994 | echo "" | |
995 | echo "/* Print out the details of the current architecture. */" | |
996 | echo "" | |
997 | cat <<EOF | |
998 | void | |
999 | gdbarch_dump (void) | |
1000 | { | |
1001 | EOF | |
1002 | function_list | while eval read $read | |
1003 | do | |
1004 | case "${class}" in | |
1005 | "f" ) | |
1006 | echo " fprintf_unfiltered (gdb_stdlog," | |
1007 | echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\"," | |
1008 | echo " (long) current_gdbarch->${function}" | |
1009 | echo " /*${macro} ()*/);" | |
1010 | ;; | |
1011 | * ) | |
1012 | test "${fmt}" || fmt="%ld" | |
1013 | test "${print}" || print="(long) ${macro}" | |
1014 | if [ "${print_p}" = "#" ] | |
1015 | then | |
1016 | echo "#ifdef ${macro}" | |
1017 | echo " fprintf_unfiltered (gdb_stdlog," | |
1018 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," | |
1019 | echo " ${print});" | |
1020 | echo "#endif" | |
1021 | elif [ "${print_p}" ] | |
1022 | then | |
1023 | echo " if (${print_p})" | |
1024 | echo " fprintf_unfiltered (gdb_stdlog," | |
1025 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," | |
1026 | echo " ${print});" | |
1027 | else | |
1028 | echo " fprintf_unfiltered (gdb_stdlog," | |
1029 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," | |
1030 | echo " ${print});" | |
1031 | fi | |
1032 | ;; | |
1033 | esac | |
1034 | done | |
1035 | echo "}" | |
1036 | ||
1037 | ||
1038 | # GET/SET | |
1039 | echo "" | |
1040 | cat <<EOF | |
1041 | struct gdbarch_tdep * | |
1042 | gdbarch_tdep (struct gdbarch *gdbarch) | |
1043 | { | |
1044 | if (gdbarch_debug >= 2) | |
1045 | /* FIXME: gdb_std??? */ | |
1046 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n"); | |
1047 | return gdbarch->tdep; | |
1048 | } | |
1049 | EOF | |
1050 | echo "" | |
1051 | function_list | while eval read $read | |
1052 | do | |
1053 | case "${class}" in | |
1054 | "f" ) | |
1055 | echo "" | |
1056 | echo "${returntype}" | |
1057 | if [ "${formal}" = "void" ] | |
1058 | then | |
1059 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" | |
1060 | else | |
1061 | echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})" | |
1062 | fi | |
1063 | echo "{" | |
1064 | echo " if (gdbarch->${function} == 0)" | |
1065 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" | |
1066 | echo " if (gdbarch_debug >= 2)" | |
1067 | echo " /* FIXME: gdb_std??? */" | |
1068 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" | |
1069 | test "${actual}" = "-" && actual="" | |
1070 | if [ "${returntype}" = "void" ] | |
1071 | then | |
1072 | echo " gdbarch->${function} (${actual});" | |
1073 | else | |
1074 | echo " return gdbarch->${function} (${actual});" | |
1075 | fi | |
1076 | echo "}" | |
1077 | echo "" | |
1078 | echo "void" | |
1079 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," | |
cff3e48b | 1080 | echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})" |
104c1213 JM |
1081 | echo "{" |
1082 | echo " gdbarch->${function} = ${function};" | |
1083 | echo "}" | |
1084 | ;; | |
1085 | "v" ) | |
1086 | echo "" | |
1087 | echo "${returntype}" | |
1088 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" | |
1089 | echo "{" | |
c4093a6a | 1090 | if [ "${invalid_p}" ] |
104c1213 | 1091 | then |
c4093a6a | 1092 | echo " if (${invalid_p})" |
104c1213 JM |
1093 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
1094 | elif [ "${init}" ] | |
1095 | then | |
1096 | echo " if (gdbarch->${function} == ${init})" | |
1097 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" | |
1098 | fi | |
1099 | echo " if (gdbarch_debug >= 2)" | |
1100 | echo " /* FIXME: gdb_std??? */" | |
1101 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" | |
1102 | echo " return gdbarch->${function};" | |
1103 | echo "}" | |
1104 | echo "" | |
1105 | echo "void" | |
1106 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," | |
cff3e48b | 1107 | echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})" |
104c1213 JM |
1108 | echo "{" |
1109 | echo " gdbarch->${function} = ${function};" | |
1110 | echo "}" | |
1111 | ;; | |
1112 | "i" ) | |
1113 | echo "" | |
1114 | echo "${returntype}" | |
1115 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" | |
1116 | echo "{" | |
1117 | echo " if (gdbarch_debug >= 2)" | |
1118 | echo " /* FIXME: gdb_std??? */" | |
1119 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" | |
1120 | echo " return gdbarch->${function};" | |
1121 | echo "}" | |
1122 | ;; | |
1123 | esac | |
1124 | done | |
1125 | ||
1126 | # All the trailing guff | |
1127 | cat <<EOF | |
1128 | ||
1129 | ||
1130 | /* Keep a registrary of per-architecture data-pointers required by GDB | |
1131 | modules. */ | |
1132 | ||
1133 | struct gdbarch_data | |
1134 | { | |
1135 | int index; | |
1136 | }; | |
1137 | ||
1138 | struct gdbarch_data_registration | |
1139 | { | |
1140 | gdbarch_data_ftype *init; | |
1141 | struct gdbarch_data *data; | |
1142 | struct gdbarch_data_registration *next; | |
1143 | }; | |
1144 | ||
1145 | struct gdbarch_data_registrary | |
1146 | { | |
1147 | int nr; | |
1148 | struct gdbarch_data_registration *registrations; | |
1149 | }; | |
1150 | ||
1151 | struct gdbarch_data_registrary gdbarch_data_registrary = | |
1152 | { | |
1153 | 0, NULL, | |
1154 | }; | |
1155 | ||
1156 | struct gdbarch_data * | |
1157 | register_gdbarch_data (gdbarch_data_ftype *init) | |
1158 | { | |
1159 | struct gdbarch_data_registration **curr; | |
1160 | for (curr = &gdbarch_data_registrary.registrations; | |
1161 | (*curr) != NULL; | |
1162 | curr = &(*curr)->next); | |
1163 | (*curr) = XMALLOC (struct gdbarch_data_registration); | |
1164 | (*curr)->next = NULL; | |
1165 | (*curr)->init = init; | |
1166 | (*curr)->data = XMALLOC (struct gdbarch_data); | |
1167 | (*curr)->data->index = gdbarch_data_registrary.nr++; | |
1168 | return (*curr)->data; | |
1169 | } | |
1170 | ||
1171 | ||
1172 | /* Walk through all the registered users initializing each in turn. */ | |
1173 | ||
1174 | static void | |
1175 | init_gdbarch_data (struct gdbarch *gdbarch) | |
1176 | { | |
1177 | struct gdbarch_data_registration *rego; | |
1178 | gdbarch->nr_data = gdbarch_data_registrary.nr + 1; | |
1179 | gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data); | |
1180 | for (rego = gdbarch_data_registrary.registrations; | |
1181 | rego != NULL; | |
1182 | rego = rego->next) | |
1183 | { | |
1184 | if (rego->data->index < gdbarch->nr_data) | |
1185 | gdbarch->data[rego->data->index] = rego->init (); | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | ||
1190 | /* Return the current value of the specified per-architecture | |
1191 | data-pointer. */ | |
1192 | ||
1193 | void * | |
1194 | gdbarch_data (data) | |
1195 | struct gdbarch_data *data; | |
1196 | { | |
1197 | if (data->index >= current_gdbarch->nr_data) | |
1198 | internal_error ("gdbarch_data: request for non-existant data."); | |
1199 | return current_gdbarch->data[data->index]; | |
1200 | } | |
1201 | ||
1202 | ||
1203 | ||
1204 | /* Keep a registrary of swaped data required by GDB modules. */ | |
1205 | ||
1206 | struct gdbarch_swap | |
1207 | { | |
1208 | void *swap; | |
1209 | struct gdbarch_swap_registration *source; | |
1210 | struct gdbarch_swap *next; | |
1211 | }; | |
1212 | ||
1213 | struct gdbarch_swap_registration | |
1214 | { | |
1215 | void *data; | |
1216 | unsigned long sizeof_data; | |
1217 | gdbarch_swap_ftype *init; | |
1218 | struct gdbarch_swap_registration *next; | |
1219 | }; | |
1220 | ||
1221 | struct gdbarch_swap_registrary | |
1222 | { | |
1223 | int nr; | |
1224 | struct gdbarch_swap_registration *registrations; | |
1225 | }; | |
1226 | ||
1227 | struct gdbarch_swap_registrary gdbarch_swap_registrary = | |
1228 | { | |
1229 | 0, NULL, | |
1230 | }; | |
1231 | ||
1232 | void | |
1233 | register_gdbarch_swap (void *data, | |
1234 | unsigned long sizeof_data, | |
1235 | gdbarch_swap_ftype *init) | |
1236 | { | |
1237 | struct gdbarch_swap_registration **rego; | |
1238 | for (rego = &gdbarch_swap_registrary.registrations; | |
1239 | (*rego) != NULL; | |
1240 | rego = &(*rego)->next); | |
1241 | (*rego) = XMALLOC (struct gdbarch_swap_registration); | |
1242 | (*rego)->next = NULL; | |
1243 | (*rego)->init = init; | |
1244 | (*rego)->data = data; | |
1245 | (*rego)->sizeof_data = sizeof_data; | |
1246 | } | |
1247 | ||
1248 | ||
1249 | static void | |
1250 | init_gdbarch_swap (struct gdbarch *gdbarch) | |
1251 | { | |
1252 | struct gdbarch_swap_registration *rego; | |
1253 | struct gdbarch_swap **curr = &gdbarch->swap; | |
1254 | for (rego = gdbarch_swap_registrary.registrations; | |
1255 | rego != NULL; | |
1256 | rego = rego->next) | |
1257 | { | |
1258 | if (rego->data != NULL) | |
1259 | { | |
1260 | (*curr) = XMALLOC (struct gdbarch_swap); | |
1261 | (*curr)->source = rego; | |
1262 | (*curr)->swap = xmalloc (rego->sizeof_data); | |
1263 | (*curr)->next = NULL; | |
1264 | memset (rego->data, 0, rego->sizeof_data); | |
1265 | curr = &(*curr)->next; | |
1266 | } | |
1267 | if (rego->init != NULL) | |
1268 | rego->init (); | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | static void | |
1273 | swapout_gdbarch_swap (struct gdbarch *gdbarch) | |
1274 | { | |
1275 | struct gdbarch_swap *curr; | |
1276 | for (curr = gdbarch->swap; | |
1277 | curr != NULL; | |
1278 | curr = curr->next) | |
1279 | memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); | |
1280 | } | |
1281 | ||
1282 | static void | |
1283 | swapin_gdbarch_swap (struct gdbarch *gdbarch) | |
1284 | { | |
1285 | struct gdbarch_swap *curr; | |
1286 | for (curr = gdbarch->swap; | |
1287 | curr != NULL; | |
1288 | curr = curr->next) | |
1289 | memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); | |
1290 | } | |
1291 | ||
1292 | ||
1293 | /* Keep a registrary of the architectures known by GDB. */ | |
1294 | ||
1295 | struct gdbarch_init_registration | |
1296 | { | |
1297 | enum bfd_architecture bfd_architecture; | |
1298 | gdbarch_init_ftype *init; | |
1299 | struct gdbarch_list *arches; | |
1300 | struct gdbarch_init_registration *next; | |
1301 | }; | |
1302 | ||
1303 | static struct gdbarch_init_registration *gdbarch_init_registrary = NULL; | |
1304 | ||
1305 | void | |
1306 | register_gdbarch_init (enum bfd_architecture bfd_architecture, | |
1307 | gdbarch_init_ftype *init) | |
1308 | { | |
1309 | struct gdbarch_init_registration **curr; | |
1310 | const struct bfd_arch_info *bfd_arch_info; | |
1311 | /* Check that BFD reconizes this architecture */ | |
1312 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); | |
1313 | if (bfd_arch_info == NULL) | |
1314 | { | |
1315 | internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); | |
1316 | } | |
1317 | /* Check that we haven't seen this architecture before */ | |
1318 | for (curr = &gdbarch_init_registrary; | |
1319 | (*curr) != NULL; | |
1320 | curr = &(*curr)->next) | |
1321 | { | |
1322 | if (bfd_architecture == (*curr)->bfd_architecture) | |
1323 | internal_error ("gdbarch: Duplicate registraration of architecture (%s)", | |
1324 | bfd_arch_info->printable_name); | |
1325 | } | |
1326 | /* log it */ | |
1327 | if (gdbarch_debug) | |
1328 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", | |
1329 | bfd_arch_info->printable_name, | |
1330 | (long) init); | |
1331 | /* Append it */ | |
1332 | (*curr) = XMALLOC (struct gdbarch_init_registration); | |
1333 | (*curr)->bfd_architecture = bfd_architecture; | |
1334 | (*curr)->init = init; | |
1335 | (*curr)->arches = NULL; | |
1336 | (*curr)->next = NULL; | |
1337 | } | |
1338 | ||
1339 | ||
1340 | ||
1341 | /* Look for an architecture using gdbarch_info. Base search on only | |
1342 | BFD_ARCH_INFO and BYTE_ORDER. */ | |
1343 | ||
1344 | struct gdbarch_list * | |
1345 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, | |
1346 | const struct gdbarch_info *info) | |
1347 | { | |
1348 | for (; arches != NULL; arches = arches->next) | |
1349 | { | |
1350 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) | |
1351 | continue; | |
1352 | if (info->byte_order != arches->gdbarch->byte_order) | |
1353 | continue; | |
1354 | return arches; | |
1355 | } | |
1356 | return NULL; | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* Update the current architecture. Return ZERO if the update request | |
1361 | failed. */ | |
1362 | ||
1363 | int | |
1364 | gdbarch_update (struct gdbarch_info info) | |
1365 | { | |
1366 | struct gdbarch *new_gdbarch; | |
1367 | struct gdbarch_list **list; | |
1368 | struct gdbarch_init_registration *rego; | |
1369 | ||
1370 | /* Fill in any missing bits. Most important is the bfd_architecture | |
1371 | which is used to select the target architecture. */ | |
1372 | if (info.bfd_architecture == bfd_arch_unknown) | |
1373 | { | |
1374 | if (info.bfd_arch_info != NULL) | |
1375 | info.bfd_architecture = info.bfd_arch_info->arch; | |
1376 | else if (info.abfd != NULL) | |
1377 | info.bfd_architecture = bfd_get_arch (info.abfd); | |
1378 | /* FIXME - should query BFD for its default architecture. */ | |
1379 | else | |
1380 | info.bfd_architecture = current_gdbarch->bfd_arch_info->arch; | |
1381 | } | |
1382 | if (info.bfd_arch_info == NULL) | |
1383 | { | |
1384 | if (target_architecture_auto && info.abfd != NULL) | |
1385 | info.bfd_arch_info = bfd_get_arch_info (info.abfd); | |
1386 | else | |
1387 | info.bfd_arch_info = current_gdbarch->bfd_arch_info; | |
1388 | } | |
1389 | if (info.byte_order == 0) | |
1390 | { | |
1391 | if (target_byte_order_auto && info.abfd != NULL) | |
1392 | info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN | |
1393 | : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN | |
1394 | : 0); | |
1395 | else | |
1396 | info.byte_order = current_gdbarch->byte_order; | |
1397 | /* FIXME - should query BFD for its default byte-order. */ | |
1398 | } | |
1399 | /* A default for abfd? */ | |
1400 | ||
1401 | /* Find the target that knows about this architecture. */ | |
1402 | for (rego = gdbarch_init_registrary; | |
1403 | rego != NULL && rego->bfd_architecture != info.bfd_architecture; | |
1404 | rego = rego->next); | |
1405 | if (rego == NULL) | |
1406 | { | |
1407 | if (gdbarch_debug) | |
1408 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n"); | |
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | if (gdbarch_debug) | |
1413 | { | |
1414 | fprintf_unfiltered (gdb_stdlog, | |
1415 | "gdbarch_update: info.bfd_architecture %d (%s)\n", | |
1416 | info.bfd_architecture, | |
1417 | bfd_lookup_arch (info.bfd_architecture, 0)->printable_name); | |
1418 | fprintf_unfiltered (gdb_stdlog, | |
1419 | "gdbarch_update: info.bfd_arch_info %s\n", | |
1420 | (info.bfd_arch_info != NULL | |
1421 | ? info.bfd_arch_info->printable_name | |
1422 | : "(null)")); | |
1423 | fprintf_unfiltered (gdb_stdlog, | |
1424 | "gdbarch_update: info.byte_order %d (%s)\n", | |
1425 | info.byte_order, | |
1426 | (info.byte_order == BIG_ENDIAN ? "big" | |
1427 | : info.byte_order == LITTLE_ENDIAN ? "little" | |
1428 | : "default")); | |
1429 | fprintf_unfiltered (gdb_stdlog, | |
1430 | "gdbarch_update: info.abfd 0x%lx\n", | |
1431 | (long) info.abfd); | |
1432 | fprintf_unfiltered (gdb_stdlog, | |
1433 | "gdbarch_update: info.tdep_info 0x%lx\n", | |
1434 | (long) info.tdep_info); | |
1435 | } | |
1436 | ||
1437 | /* Ask the target for a replacement architecture. */ | |
1438 | new_gdbarch = rego->init (info, rego->arches); | |
1439 | ||
1440 | /* Did the target like it? No. Reject the change. */ | |
1441 | if (new_gdbarch == NULL) | |
1442 | { | |
1443 | if (gdbarch_debug) | |
1444 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\n"); | |
1445 | return 0; | |
1446 | } | |
1447 | ||
1448 | /* Did the architecture change? No. Do nothing. */ | |
1449 | if (current_gdbarch == new_gdbarch) | |
1450 | { | |
1451 | if (gdbarch_debug) | |
1452 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n", | |
1453 | (long) new_gdbarch, | |
1454 | new_gdbarch->bfd_arch_info->printable_name); | |
1455 | return 1; | |
1456 | } | |
1457 | ||
1458 | /* Swap all data belonging to the old target out */ | |
1459 | swapout_gdbarch_swap (current_gdbarch); | |
1460 | ||
1461 | /* Is this a pre-existing architecture? Yes. Swap it in. */ | |
1462 | for (list = ®o->arches; | |
1463 | (*list) != NULL; | |
1464 | list = &(*list)->next) | |
1465 | { | |
1466 | if ((*list)->gdbarch == new_gdbarch) | |
1467 | { | |
1468 | if (gdbarch_debug) | |
1469 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n", | |
1470 | (long) new_gdbarch, | |
1471 | new_gdbarch->bfd_arch_info->printable_name); | |
1472 | current_gdbarch = new_gdbarch; | |
1473 | swapin_gdbarch_swap (new_gdbarch); | |
1474 | return 1; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | /* Append this new architecture to this targets list. */ | |
1479 | (*list) = XMALLOC (struct gdbarch_list); | |
1480 | (*list)->next = NULL; | |
1481 | (*list)->gdbarch = new_gdbarch; | |
1482 | ||
1483 | /* Switch to this new architecture. Dump it out. */ | |
1484 | current_gdbarch = new_gdbarch; | |
1485 | if (gdbarch_debug) | |
1486 | { | |
1487 | fprintf_unfiltered (gdb_stdlog, | |
1488 | "gdbarch_update: New architecture 0x%08lx (%s) selected\n", | |
1489 | (long) new_gdbarch, | |
1490 | new_gdbarch->bfd_arch_info->printable_name); | |
1491 | gdbarch_dump (); | |
1492 | } | |
1493 | ||
1494 | /* Check that the newly installed architecture is valid. */ | |
1495 | verify_gdbarch (new_gdbarch); | |
1496 | ||
1497 | /* Initialize the per-architecture memory (swap) areas. | |
1498 | CURRENT_GDBARCH must be update before these modules are | |
1499 | called. */ | |
1500 | init_gdbarch_swap (new_gdbarch); | |
1501 | ||
1502 | /* Initialize the per-architecture data-pointer of all parties that | |
1503 | registered an interest in this architecture. CURRENT_GDBARCH | |
1504 | must be updated before these modules are called. */ | |
1505 | init_gdbarch_data (new_gdbarch); | |
1506 | ||
1507 | return 1; | |
1508 | } | |
1509 | ||
1510 | ||
1511 | ||
1512 | /* Functions to manipulate the endianness of the target. */ | |
1513 | ||
1514 | #ifdef TARGET_BYTE_ORDER_SELECTABLE | |
1515 | /* compat - Catch old targets that expect a selectable byte-order to | |
1516 | default to BIG_ENDIAN */ | |
1517 | #ifndef TARGET_BYTE_ORDER_DEFAULT | |
1518 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN | |
1519 | #endif | |
1520 | #endif | |
1521 | #if !TARGET_BYTE_ORDER_SELECTABLE_P | |
1522 | #ifndef TARGET_BYTE_ORDER_DEFAULT | |
1523 | /* compat - Catch old non byte-order selectable targets that do not | |
1524 | define TARGET_BYTE_ORDER_DEFAULT and instead expect | |
1525 | TARGET_BYTE_ORDER to be used as the default. For targets that | |
1526 | defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the | |
1527 | below will get a strange compiler warning. */ | |
1528 | #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER | |
1529 | #endif | |
1530 | #endif | |
1531 | #ifndef TARGET_BYTE_ORDER_DEFAULT | |
1532 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */ | |
1533 | #endif | |
1534 | int target_byte_order = TARGET_BYTE_ORDER_DEFAULT; | |
1535 | int target_byte_order_auto = 1; | |
1536 | ||
1537 | /* Chain containing the \"set endian\" commands. */ | |
1538 | static struct cmd_list_element *endianlist = NULL; | |
1539 | ||
1540 | /* Called by \`\`show endian''. */ | |
1541 | static void | |
1542 | show_endian (char *args, int from_tty) | |
1543 | { | |
1544 | char *msg = | |
1545 | (TARGET_BYTE_ORDER_AUTO | |
1546 | ? "The target endianness is set automatically (currently %s endian)\n" | |
1547 | : "The target is assumed to be %s endian\n"); | |
1548 | printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little")); | |
1549 | } | |
1550 | ||
1551 | /* Called if the user enters \`\`set endian'' without an argument. */ | |
1552 | static void | |
1553 | set_endian (char *args, int from_tty) | |
1554 | { | |
1555 | printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n"); | |
1556 | show_endian (args, from_tty); | |
1557 | } | |
1558 | ||
1559 | /* Called by \`\`set endian big''. */ | |
1560 | static void | |
1561 | set_endian_big (char *args, int from_tty) | |
1562 | { | |
1563 | if (TARGET_BYTE_ORDER_SELECTABLE_P) | |
1564 | { | |
1565 | target_byte_order = BIG_ENDIAN; | |
1566 | target_byte_order_auto = 0; | |
1567 | if (GDB_MULTI_ARCH) | |
1568 | { | |
1569 | struct gdbarch_info info; | |
1570 | memset (&info, 0, sizeof info); | |
1571 | info.byte_order = BIG_ENDIAN; | |
1572 | gdbarch_update (info); | |
1573 | } | |
1574 | } | |
1575 | else | |
1576 | { | |
1577 | printf_unfiltered ("Byte order is not selectable."); | |
1578 | show_endian (args, from_tty); | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | /* Called by \`\`set endian little''. */ | |
1583 | static void | |
1584 | set_endian_little (char *args, int from_tty) | |
1585 | { | |
1586 | if (TARGET_BYTE_ORDER_SELECTABLE_P) | |
1587 | { | |
1588 | target_byte_order = LITTLE_ENDIAN; | |
1589 | target_byte_order_auto = 0; | |
1590 | if (GDB_MULTI_ARCH) | |
1591 | { | |
1592 | struct gdbarch_info info; | |
1593 | memset (&info, 0, sizeof info); | |
1594 | info.byte_order = LITTLE_ENDIAN; | |
1595 | gdbarch_update (info); | |
1596 | } | |
1597 | } | |
1598 | else | |
1599 | { | |
1600 | printf_unfiltered ("Byte order is not selectable."); | |
1601 | show_endian (args, from_tty); | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | /* Called by \`\`set endian auto''. */ | |
1606 | static void | |
1607 | set_endian_auto (char *args, int from_tty) | |
1608 | { | |
1609 | if (TARGET_BYTE_ORDER_SELECTABLE_P) | |
1610 | { | |
1611 | target_byte_order_auto = 1; | |
1612 | } | |
1613 | else | |
1614 | { | |
1615 | printf_unfiltered ("Byte order is not selectable."); | |
1616 | show_endian (args, from_tty); | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | /* Set the endianness from a BFD. */ | |
1621 | static void | |
1622 | set_endian_from_file (bfd *abfd) | |
1623 | { | |
1624 | if (TARGET_BYTE_ORDER_SELECTABLE_P) | |
1625 | { | |
1626 | int want; | |
1627 | ||
1628 | if (bfd_big_endian (abfd)) | |
1629 | want = BIG_ENDIAN; | |
1630 | else | |
1631 | want = LITTLE_ENDIAN; | |
1632 | if (TARGET_BYTE_ORDER_AUTO) | |
1633 | target_byte_order = want; | |
1634 | else if (TARGET_BYTE_ORDER != want) | |
1635 | warning ("%s endian file does not match %s endian target.", | |
1636 | want == BIG_ENDIAN ? "big" : "little", | |
1637 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); | |
1638 | } | |
1639 | else | |
1640 | { | |
1641 | if (bfd_big_endian (abfd) | |
1642 | ? TARGET_BYTE_ORDER != BIG_ENDIAN | |
1643 | : TARGET_BYTE_ORDER == BIG_ENDIAN) | |
1644 | warning ("%s endian file does not match %s endian target.", | |
1645 | bfd_big_endian (abfd) ? "big" : "little", | |
1646 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | ||
1651 | ||
1652 | /* Functions to manipulate the architecture of the target */ | |
1653 | ||
1654 | enum set_arch { set_arch_auto, set_arch_manual }; | |
1655 | ||
1656 | int target_architecture_auto = 1; | |
1657 | extern const struct bfd_arch_info bfd_default_arch_struct; | |
1658 | const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct; | |
1659 | int (*target_architecture_hook) (const struct bfd_arch_info *ap); | |
1660 | ||
1661 | static void show_endian (char *, int); | |
1662 | static void set_endian (char *, int); | |
1663 | static void set_endian_big (char *, int); | |
1664 | static void set_endian_little (char *, int); | |
1665 | static void set_endian_auto (char *, int); | |
1666 | static void set_endian_from_file (bfd *); | |
1667 | static int arch_ok (const struct bfd_arch_info *arch); | |
1668 | static void set_arch (const struct bfd_arch_info *arch, enum set_arch type); | |
1669 | static void show_architecture (char *, int); | |
1670 | static void set_architecture (char *, int); | |
1671 | static void info_architecture (char *, int); | |
1672 | static void set_architecture_from_file (bfd *); | |
1673 | ||
1674 | /* Do the real work of changing the current architecture */ | |
1675 | ||
1676 | static int | |
1677 | arch_ok (const struct bfd_arch_info *arch) | |
1678 | { | |
1679 | /* Should be performing the more basic check that the binary is | |
1680 | compatible with GDB. */ | |
1681 | /* Check with the target that the architecture is valid. */ | |
1682 | return (target_architecture_hook == NULL | |
1683 | || target_architecture_hook (arch)); | |
1684 | } | |
1685 | ||
1686 | static void | |
1687 | set_arch (const struct bfd_arch_info *arch, | |
1688 | enum set_arch type) | |
1689 | { | |
1690 | switch (type) | |
1691 | { | |
1692 | case set_arch_auto: | |
1693 | if (!arch_ok (arch)) | |
1694 | warning ("Target may not support %s architecture", | |
1695 | arch->printable_name); | |
1696 | target_architecture = arch; | |
1697 | break; | |
1698 | case set_arch_manual: | |
1699 | if (!arch_ok (arch)) | |
1700 | { | |
1701 | printf_unfiltered ("Target does not support \`%s' architecture.\n", | |
1702 | arch->printable_name); | |
1703 | } | |
1704 | else | |
1705 | { | |
1706 | target_architecture_auto = 0; | |
1707 | target_architecture = arch; | |
1708 | } | |
1709 | break; | |
1710 | } | |
1711 | if (gdbarch_debug) | |
1712 | gdbarch_dump (); | |
1713 | } | |
1714 | ||
1715 | /* Called if the user enters \`\`show architecture'' without an argument. */ | |
1716 | static void | |
1717 | show_architecture (char *args, int from_tty) | |
1718 | { | |
1719 | const char *arch; | |
1720 | arch = TARGET_ARCHITECTURE->printable_name; | |
1721 | if (target_architecture_auto) | |
1722 | printf_filtered ("The target architecture is set automatically (currently %s)\n", arch); | |
1723 | else | |
1724 | printf_filtered ("The target architecture is assumed to be %s\n", arch); | |
1725 | } | |
1726 | ||
1727 | /* Called if the user enters \`\`set architecture'' with or without an | |
1728 | argument. */ | |
1729 | static void | |
1730 | set_architecture (char *args, int from_tty) | |
1731 | { | |
1732 | if (args == NULL) | |
1733 | { | |
1734 | printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n"); | |
1735 | } | |
1736 | else if (strcmp (args, "auto") == 0) | |
1737 | { | |
1738 | target_architecture_auto = 1; | |
1739 | } | |
1740 | else if (GDB_MULTI_ARCH) | |
1741 | { | |
1742 | const struct bfd_arch_info *arch = bfd_scan_arch (args); | |
1743 | if (arch == NULL) | |
1744 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); | |
1745 | else | |
1746 | { | |
1747 | struct gdbarch_info info; | |
1748 | memset (&info, 0, sizeof info); | |
1749 | info.bfd_arch_info = arch; | |
1750 | if (gdbarch_update (info)) | |
1751 | target_architecture_auto = 0; | |
1752 | else | |
1753 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); | |
1754 | } | |
1755 | } | |
1756 | else | |
1757 | { | |
1758 | const struct bfd_arch_info *arch = bfd_scan_arch (args); | |
1759 | if (arch != NULL) | |
1760 | set_arch (arch, set_arch_manual); | |
1761 | else | |
1762 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | /* Called if the user enters \`\`info architecture'' without an argument. */ | |
1767 | static void | |
1768 | info_architecture (char *args, int from_tty) | |
1769 | { | |
1770 | enum bfd_architecture a; | |
1771 | if (GDB_MULTI_ARCH) | |
1772 | { | |
1773 | if (gdbarch_init_registrary != NULL) | |
1774 | { | |
1775 | struct gdbarch_init_registration *rego; | |
1776 | printf_filtered ("Available architectures are:\n"); | |
1777 | for (rego = gdbarch_init_registrary; | |
1778 | rego != NULL; | |
1779 | rego = rego->next) | |
1780 | { | |
1781 | const struct bfd_arch_info *ap; | |
1782 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); | |
1783 | if (ap != NULL) | |
1784 | { | |
1785 | do | |
1786 | { | |
1787 | printf_filtered (" %s", ap->printable_name); | |
1788 | ap = ap->next; | |
1789 | } | |
1790 | while (ap != NULL); | |
1791 | printf_filtered ("\n"); | |
1792 | } | |
1793 | } | |
1794 | } | |
1795 | else | |
1796 | { | |
1797 | printf_filtered ("There are no available architectures.\n"); | |
1798 | } | |
1799 | return; | |
1800 | } | |
1801 | printf_filtered ("Available architectures are:\n"); | |
1802 | for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++) | |
1803 | { | |
1804 | const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0); | |
1805 | if (ap != NULL) | |
1806 | { | |
1807 | do | |
1808 | { | |
1809 | printf_filtered (" %s", ap->printable_name); | |
1810 | ap = ap->next; | |
1811 | } | |
1812 | while (ap != NULL); | |
1813 | printf_filtered ("\n"); | |
1814 | } | |
1815 | } | |
1816 | } | |
1817 | ||
1818 | /* Set the architecture from arch/machine */ | |
1819 | void | |
1820 | set_architecture_from_arch_mach (arch, mach) | |
1821 | enum bfd_architecture arch; | |
1822 | unsigned long mach; | |
1823 | { | |
1824 | const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach); | |
1825 | if (wanted != NULL) | |
1826 | set_arch (wanted, set_arch_manual); | |
1827 | else | |
1828 | internal_error ("gdbarch: hardwired architecture/machine not reconized"); | |
1829 | } | |
1830 | ||
1831 | /* Set the architecture from a BFD */ | |
1832 | static void | |
1833 | set_architecture_from_file (bfd *abfd) | |
1834 | { | |
1835 | const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd); | |
1836 | if (target_architecture_auto) | |
1837 | { | |
1838 | set_arch (wanted, set_arch_auto); | |
1839 | } | |
1840 | else if (wanted != target_architecture) | |
1841 | { | |
1842 | warning ("%s architecture file may be incompatible with %s target.", | |
1843 | wanted->printable_name, | |
1844 | target_architecture->printable_name); | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | ||
1849 | /* Misc helper functions for targets. */ | |
1850 | ||
1851 | int | |
1852 | frame_num_args_unknown (fi) | |
1853 | struct frame_info *fi; | |
1854 | { | |
1855 | return -1; | |
1856 | } | |
1857 | ||
1858 | ||
1859 | int | |
1860 | generic_register_convertible_not (num) | |
1861 | int num; | |
1862 | { | |
1863 | return 0; | |
1864 | } | |
1865 | ||
1866 | /* Disassembler */ | |
1867 | ||
1868 | /* Pointer to the target-dependent disassembly function. */ | |
1869 | int (*tm_print_insn) (bfd_vma, disassemble_info *); | |
1870 | disassemble_info tm_print_insn_info; | |
1871 | ||
1872 | ||
1873 | ||
1874 | /* Set the dynamic target-system-dependant parameters (architecture, | |
1875 | byte-order) using information found in the BFD */ | |
1876 | ||
1877 | void | |
1878 | set_gdbarch_from_file (abfd) | |
1879 | bfd *abfd; | |
1880 | { | |
1881 | if (GDB_MULTI_ARCH) | |
1882 | { | |
1883 | struct gdbarch_info info; | |
1884 | memset (&info, 0, sizeof info); | |
1885 | info.abfd = abfd; | |
1886 | gdbarch_update (info); | |
1887 | return; | |
1888 | } | |
1889 | set_architecture_from_file (abfd); | |
1890 | set_endian_from_file (abfd); | |
1891 | } | |
1892 | ||
1893 | ||
1894 | #if defined (CALL_DUMMY) | |
1895 | /* FIXME - this should go away */ | |
1896 | LONGEST call_dummy_words[] = CALL_DUMMY; | |
1897 | int sizeof_call_dummy_words = sizeof (call_dummy_words); | |
1898 | #endif | |
1899 | ||
1900 | ||
e514a9d6 JM |
1901 | /* Initialize the current architecture. */ |
1902 | void | |
1903 | initialize_current_architecture () | |
1904 | { | |
1905 | if (GDB_MULTI_ARCH) | |
1906 | { | |
1907 | struct gdbarch_init_registration *rego; | |
1908 | const struct bfd_arch_info *chosen = NULL; | |
1909 | for (rego = gdbarch_init_registrary; rego != NULL; rego = rego->next) | |
1910 | { | |
1911 | const struct bfd_arch_info *ap | |
1912 | = bfd_lookup_arch (rego->bfd_architecture, 0); | |
1913 | ||
1914 | /* Choose the first architecture alphabetically. */ | |
1915 | if (chosen == NULL | |
1916 | || strcmp (ap->printable_name, chosen->printable_name) < 0) | |
1917 | chosen = ap; | |
1918 | } | |
1919 | ||
1920 | if (chosen != NULL) | |
1921 | { | |
1922 | struct gdbarch_info info; | |
1923 | memset (&info, 0, sizeof info); | |
1924 | info.bfd_arch_info = chosen; | |
1925 | gdbarch_update (info); | |
1926 | } | |
1927 | } | |
1928 | } | |
1929 | ||
104c1213 JM |
1930 | extern void _initialize_gdbarch (void); |
1931 | void | |
1932 | _initialize_gdbarch () | |
1933 | { | |
1934 | add_prefix_cmd ("endian", class_support, set_endian, | |
1935 | "Set endianness of target.", | |
1936 | &endianlist, "set endian ", 0, &setlist); | |
1937 | add_cmd ("big", class_support, set_endian_big, | |
1938 | "Set target as being big endian.", &endianlist); | |
1939 | add_cmd ("little", class_support, set_endian_little, | |
1940 | "Set target as being little endian.", &endianlist); | |
1941 | add_cmd ("auto", class_support, set_endian_auto, | |
1942 | "Select target endianness automatically.", &endianlist); | |
1943 | add_cmd ("endian", class_support, show_endian, | |
1944 | "Show endianness of target.", &showlist); | |
1945 | ||
1946 | add_cmd ("architecture", class_support, set_architecture, | |
1947 | "Set architecture of target.", &setlist); | |
1948 | add_alias_cmd ("processor", "architecture", class_support, 1, &setlist); | |
1949 | add_cmd ("architecture", class_support, show_architecture, | |
1950 | "Show architecture of target.", &showlist); | |
1951 | add_cmd ("architecture", class_support, info_architecture, | |
1952 | "List supported target architectures", &infolist); | |
1953 | ||
1954 | INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered); | |
1955 | tm_print_insn_info.flavour = bfd_target_unknown_flavour; | |
1956 | tm_print_insn_info.read_memory_func = dis_asm_read_memory; | |
1957 | tm_print_insn_info.memory_error_func = dis_asm_memory_error; | |
1958 | tm_print_insn_info.print_address_func = dis_asm_print_address; | |
1959 | ||
1960 | add_show_from_set (add_set_cmd ("archdebug", | |
1961 | class_maintenance, | |
1962 | var_zinteger, | |
1963 | (char *)&gdbarch_debug, | |
1964 | "Set architecture debugging.\n\\ | |
1965 | When non-zero, architecture debugging is enabled.", &setlist), | |
1966 | &showlist); | |
1967 | } | |
1968 | EOF | |
1969 | ||
1970 | # close things off | |
1971 | exec 1>&2 | |
1972 | #../move-if-change new-gdbarch.c gdbarch.c | |
1973 | if ! test -r gdbarch.c | |
1974 | then | |
1975 | echo "gdbarch.c missing? cp new-gdbarch.c gdbarch.c" 1>&2 | |
1976 | elif diff -c gdbarch.c new-gdbarch.c | |
1977 | then | |
1978 | echo "gdbarch.c unchanged" 1>&2 | |
1979 | else | |
1980 | echo "gdbarch.c has changed? cp new-gdbarch.c gdbarch.c" 1>&2 | |
1981 | fi |