1 /* Target-dependent code for Hitachi Super-H, for GDB.
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
23 Contributed by Steve Chamberlain
36 #include "inferior.h" /* for BEFORE_TEXT_END etc. */
37 #include "gdb_string.h"
38 #include "arch-utils.h"
39 #include "floatformat.h"
46 #include "solib-svr4.h"
50 /* registers numbers shared with the simulator */
51 #include "gdb/sim-sh.h"
53 void (*sh_show_regs) (void);
54 CORE_ADDR (*skip_prologue_hard_way) (CORE_ADDR);
55 void (*do_pseudo_register) (int);
57 #define SH_DEFAULT_NUM_REGS 59
59 /* Define other aspects of the stack frame.
60 we keep a copy of the worked out return pc lying around, since it
61 is a useful bit of info */
63 struct frame_extra_info
71 sh_generic_register_name (int reg_nr)
73 static char *register_names[] =
75 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
76 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
77 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
79 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
80 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
82 "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
83 "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
87 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
89 return register_names[reg_nr];
93 sh_sh_register_name (int reg_nr)
95 static char *register_names[] =
97 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
98 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
99 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
101 "", "", "", "", "", "", "", "",
102 "", "", "", "", "", "", "", "",
104 "", "", "", "", "", "", "", "",
105 "", "", "", "", "", "", "", "",
109 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
111 return register_names[reg_nr];
115 sh_sh3_register_name (int reg_nr)
117 static char *register_names[] =
119 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
120 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
121 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
123 "", "", "", "", "", "", "", "",
124 "", "", "", "", "", "", "", "",
126 "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
127 "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1"
131 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
133 return register_names[reg_nr];
137 sh_sh3e_register_name (int reg_nr)
139 static char *register_names[] =
141 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
142 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
143 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
145 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
146 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
148 "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
149 "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
153 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
155 return register_names[reg_nr];
159 sh_sh_dsp_register_name (int reg_nr)
161 static char *register_names[] =
163 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
164 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
165 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
167 "a0g", "a0", "a1g", "a1", "m0", "m1", "x0", "x1",
168 "y0", "y1", "", "", "", "", "", "mod",
170 "rs", "re", "", "", "", "", "", "",
171 "", "", "", "", "", "", "", "",
175 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
177 return register_names[reg_nr];
181 sh_sh3_dsp_register_name (int reg_nr)
183 static char *register_names[] =
185 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
186 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
187 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
189 "a0g", "a0", "a1g", "a1", "m0", "m1", "x0", "x1",
190 "y0", "y1", "", "", "", "", "", "mod",
192 "rs", "re", "", "", "", "", "", "",
193 "r0b", "r1b", "r2b", "r3b", "r4b", "r5b", "r6b", "r7b"
194 "", "", "", "", "", "", "", "",
198 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
200 return register_names[reg_nr];
204 sh_sh4_register_name (int reg_nr)
206 static char *register_names[] =
208 /* general registers 0-15 */
209 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
210 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
212 "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
215 /* floating point registers 25 - 40 */
216 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
217 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
221 "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
223 "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
224 /* double precision (pseudo) 59 - 66 */
225 "dr0", "dr2", "dr4", "dr6", "dr8", "dr10", "dr12", "dr14",
226 /* vectors (pseudo) 67 - 70 */
227 "fv0", "fv4", "fv8", "fv12",
228 /* FIXME: missing XF 71 - 86 */
229 /* FIXME: missing XD 87 - 94 */
233 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
235 return register_names[reg_nr];
239 sh_sh64_register_name (int reg_nr)
241 static char *register_names[] =
243 /* SH MEDIA MODE (ISA 32) */
244 /* general registers (64-bit) 0-63 */
245 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
246 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
247 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
248 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
249 "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39",
250 "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47",
251 "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55",
252 "r56", "r57", "r58", "r59", "r60", "r61", "r62", "r63",
257 /* status reg., saved status reg., saved pc reg. (64-bit) 65-67 */
260 /* target registers (64-bit) 68-75*/
261 "tr0", "tr1", "tr2", "tr3", "tr4", "tr5", "tr6", "tr7",
263 /* floating point state control register (32-bit) 76 */
266 /* single precision floating point registers (32-bit) 77-140*/
267 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
268 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
269 "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
270 "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
271 "fr32", "fr33", "fr34", "fr35", "fr36", "fr37", "fr38", "fr39",
272 "fr40", "fr41", "fr42", "fr43", "fr44", "fr45", "fr46", "fr47",
273 "fr48", "fr49", "fr50", "fr51", "fr52", "fr53", "fr54", "fr55",
274 "fr56", "fr57", "fr58", "fr59", "fr60", "fr61", "fr62", "fr63",
276 /* double precision registers (pseudo) 141-172 */
277 "dr0", "dr2", "dr4", "dr6", "dr8", "dr10", "dr12", "dr14",
278 "dr16", "dr18", "dr20", "dr22", "dr24", "dr26", "dr28", "dr30",
279 "dr32", "dr34", "dr36", "dr38", "dr40", "dr42", "dr44", "dr46",
280 "dr48", "dr50", "dr52", "dr54", "dr56", "dr58", "dr60", "dr62",
282 /* floating point pairs (pseudo) 173-204*/
283 "fp0", "fp2", "fp4", "fp6", "fp8", "fp10", "fp12", "fp14",
284 "fp16", "fp18", "fp20", "fp22", "fp24", "fp26", "fp28", "fp30",
285 "fp32", "fp34", "fp36", "fp38", "fp40", "fp42", "fp44", "fp46",
286 "fp48", "fp50", "fp52", "fp54", "fp56", "fp58", "fp60", "fp62",
288 /* floating point vectors (4 floating point regs) (pseudo) 205-220*/
289 "fv0", "fv4", "fv8", "fv12", "fv16", "fv20", "fv24", "fv28",
290 "fv32", "fv36", "fv40", "fv44", "fv48", "fv52", "fv56", "fv60",
292 /* SH COMPACT MODE (ISA 16) (all pseudo) 221-272*/
293 "r0_c", "r1_c", "r2_c", "r3_c", "r4_c", "r5_c", "r6_c", "r7_c",
294 "r8_c", "r9_c", "r10_c", "r11_c", "r12_c", "r13_c", "r14_c", "r15_c",
296 "gbr_c", "mach_c", "macl_c", "pr_c", "t_c",
298 "fr0_c", "fr1_c", "fr2_c", "fr3_c", "fr4_c", "fr5_c", "fr6_c", "fr7_c",
299 "fr8_c", "fr9_c", "fr10_c", "fr11_c", "fr12_c", "fr13_c", "fr14_c", "fr15_c",
300 "dr0_c", "dr2_c", "dr4_c", "dr6_c", "dr8_c", "dr10_c", "dr12_c", "dr14_c",
301 "fv0_c", "fv4_c", "fv8_c", "fv12_c",
302 /* FIXME!!!! XF0 XF15, XD0 XD14 ?????*/
307 if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
309 return register_names[reg_nr];
312 #define NUM_PSEUDO_REGS_SH_MEDIA 80
313 #define NUM_PSEUDO_REGS_SH_COMPACT 51
315 static const unsigned char *
316 sh_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
318 /* 0xc3c3 is trapa #c3, and it works in big and little endian modes */
319 static unsigned char breakpoint[] = {0xc3, 0xc3};
321 *lenptr = sizeof (breakpoint);
325 /* Macros and functions for setting and testing a bit in a minimal
326 symbol that marks it as 32-bit function. The MSB of the minimal
327 symbol's "info" field is used for this purpose. This field is
328 already being used to store the symbol size, so the assumption is
329 that the symbol size cannot exceed 2^31.
331 ELF_MAKE_MSYMBOL_SPECIAL
332 tests whether an ELF symbol is "special", i.e. refers
333 to a 32-bit function, and sets a "special" bit in a
334 minimal symbol to mark it as a 32-bit function
335 MSYMBOL_IS_SPECIAL tests the "special" bit in a minimal symbol
336 MSYMBOL_SIZE returns the size of the minimal symbol, i.e.
337 the "info" field with the "special" bit masked out */
339 #define MSYMBOL_IS_SPECIAL(msym) \
340 (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
343 sh64_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
348 if (((elf_symbol_type *)(sym))->internal_elf_sym.st_other == STO_SH5_ISA32)
350 MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000);
351 SYMBOL_VALUE_ADDRESS (msym) |= 1;
355 /* ISA32 (shmedia) function addresses are odd (bit 0 is set). Here
356 are some macros to test, set, or clear bit 0 of addresses. */
357 #define IS_ISA32_ADDR(addr) ((addr) & 1)
358 #define MAKE_ISA32_ADDR(addr) ((addr) | 1)
359 #define UNMAKE_ISA32_ADDR(addr) ((addr) & ~1)
362 pc_is_isa32 (bfd_vma memaddr)
364 struct minimal_symbol *sym;
366 /* If bit 0 of the address is set, assume this is a
367 ISA32 (shmedia) address. */
368 if (IS_ISA32_ADDR (memaddr))
371 /* A flag indicating that this is a ISA32 function is stored by elfread.c in
372 the high bit of the info field. Use this to decide if the function is
374 sym = lookup_minimal_symbol_by_pc (memaddr);
376 return MSYMBOL_IS_SPECIAL (sym);
381 static const unsigned char *
382 sh_sh64_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
384 /* The BRK instruction for shmedia is
385 01101111 11110101 11111111 11110000
386 which translates in big endian mode to 0x6f, 0xf5, 0xff, 0xf0
387 and in little endian mode to 0xf0, 0xff, 0xf5, 0x6f */
389 /* The BRK instruction for shcompact is
391 which translates in big endian mode to 0x0, 0x3b
392 and in little endian mode to 0x3b, 0x0*/
394 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
396 if (pc_is_isa32 (*pcptr))
398 static unsigned char big_breakpoint_media[] = {0x6f, 0xf5, 0xff, 0xf0};
399 *pcptr = UNMAKE_ISA32_ADDR (*pcptr);
400 *lenptr = sizeof (big_breakpoint_media);
401 return big_breakpoint_media;
405 static unsigned char big_breakpoint_compact[] = {0x0, 0x3b};
406 *lenptr = sizeof (big_breakpoint_compact);
407 return big_breakpoint_compact;
412 if (pc_is_isa32 (*pcptr))
414 static unsigned char little_breakpoint_media[] = {0xf0, 0xff, 0xf5, 0x6f};
415 *pcptr = UNMAKE_ISA32_ADDR (*pcptr);
416 *lenptr = sizeof (little_breakpoint_media);
417 return little_breakpoint_media;
421 static unsigned char little_breakpoint_compact[] = {0x3b, 0x0};
422 *lenptr = sizeof (little_breakpoint_compact);
423 return little_breakpoint_compact;
428 /* Prologue looks like
429 [mov.l <regs>,@-r15]...
434 Actually it can be more complicated than this. For instance, with
452 /* PTABS/L Rn, TRa 0110101111110001nnnnnnl00aaa0000
453 with l=1 and n = 18 0110101111110001010010100aaa0000 */
454 #define IS_PTABSL_R18(x) (((x) & 0xffffff8f) == 0x6bf14a00)
456 /* STS.L PR,@-r0 0100000000100010
457 r0-4-->r0, PR-->(r0) */
458 #define IS_STS_R0(x) ((x) == 0x4022)
460 /* STS PR, Rm 0000mmmm00101010
462 #define IS_STS_PR(x) (((x) & 0xf0ff) == 0x2a)
464 /* MOV.L Rm,@(disp,r15) 00011111mmmmdddd
466 #define IS_MOV_TO_R15(x) (((x) & 0xff00) == 0x1f00)
468 /* MOV.L R14,@(disp,r15) 000111111110dddd
469 R14-->(dispx4+r15) */
470 #define IS_MOV_R14(x) (((x) & 0xfff0) == 0x1fe0)
472 /* ST.Q R14, disp, R18 101011001110dddddddddd0100100000
473 R18-->(dispx8+R14) */
474 #define IS_STQ_R18_R14(x) (((x) & 0xfff003ff) == 0xace00120)
476 /* ST.Q R15, disp, R18 101011001111dddddddddd0100100000
477 R18-->(dispx8+R15) */
478 #define IS_STQ_R18_R15(x) (((x) & 0xfff003ff) == 0xacf00120)
480 /* ST.L R15, disp, R18 101010001111dddddddddd0100100000
481 R18-->(dispx4+R15) */
482 #define IS_STL_R18_R15(x) (((x) & 0xfff003ff) == 0xa8f00120)
484 /* ST.Q R15, disp, R14 1010 1100 1111 dddd dddd dd00 1110 0000
485 R14-->(dispx8+R15) */
486 #define IS_STQ_R14_R15(x) (((x) & 0xfff003ff) == 0xacf000e0)
488 /* ST.L R15, disp, R14 1010 1000 1111 dddd dddd dd00 1110 0000
489 R14-->(dispx4+R15) */
490 #define IS_STL_R14_R15(x) (((x) & 0xfff003ff) == 0xa8f000e0)
492 /* ADDI.L R15,imm,R15 1101 0100 1111 ssss ssss ss00 1111 0000
494 #define IS_ADDIL_SP_MEDIA(x) (((x) & 0xfff003ff) == 0xd4f000f0)
496 /* ADDI R15,imm,R15 1101 0000 1111 ssss ssss ss00 1111 0000
498 #define IS_ADDI_SP_MEDIA(x) (((x) & 0xfff003ff) == 0xd0f000f0)
500 /* ADD.L R15,R63,R14 0000 0000 1111 1000 1111 1100 1110 0000
502 #define IS_ADDL_SP_FP_MEDIA(x) ((x) == 0x00f8fce0)
504 /* ADD R15,R63,R14 0000 0000 1111 1001 1111 1100 1110 0000
506 #define IS_ADD_SP_FP_MEDIA(x) ((x) == 0x00f9fce0)
508 #define IS_MOV_SP_FP_MEDIA(x) (IS_ADDL_SP_FP_MEDIA(x) || IS_ADD_SP_FP_MEDIA(x))
510 /* MOV #imm, R0 1110 0000 ssss ssss
512 #define IS_MOV_R0(x) (((x) & 0xff00) == 0xe000)
514 /* MOV.L @(disp,PC), R0 1101 0000 iiii iiii */
515 #define IS_MOVL_R0(x) (((x) & 0xff00) == 0xd000)
517 /* ADD r15,r0 0011 0000 1111 1100
519 #define IS_ADD_SP_R0(x) ((x) == 0x30fc)
521 /* MOV.L R14 @-R0 0010 0000 1110 0110
522 R14-->(R0-4), R0-4-->R0 */
523 #define IS_MOV_R14_R0(x) ((x) == 0x20e6)
525 /* ADD Rm,R63,Rn Rm+R63-->Rn 0000 00mm mmmm 1001 1111 11nn nnnn 0000
526 where Rm is one of r2-r9 which are the argument registers. */
527 /* FIXME: Recognize the float and double register moves too! */
528 #define IS_MEDIA_IND_ARG_MOV(x) \
529 ((((x) & 0xfc0ffc0f) == 0x0009fc00) && (((x) & 0x03f00000) >= 0x00200000 && ((x) & 0x03f00000) <= 0x00900000))
531 /* ST.Q Rn,0,Rm Rm-->Rn+0 1010 11nn nnnn 0000 0000 00mm mmmm 0000
532 or ST.L Rn,0,Rm Rm-->Rn+0 1010 10nn nnnn 0000 0000 00mm mmmm 0000
533 where Rm is one of r2-r9 which are the argument registers. */
534 #define IS_MEDIA_ARG_MOV(x) \
535 (((((x) & 0xfc0ffc0f) == 0xac000000) || (((x) & 0xfc0ffc0f) == 0xa8000000)) \
536 && (((x) & 0x000003f0) >= 0x00000020 && ((x) & 0x000003f0) <= 0x00000090))
538 /* ST.B R14,0,Rn Rn-->(R14+0) 1010 0000 1110 0000 0000 00nn nnnn 0000*/
539 /* ST.W R14,0,Rn Rn-->(R14+0) 1010 0100 1110 0000 0000 00nn nnnn 0000*/
540 /* ST.L R14,0,Rn Rn-->(R14+0) 1010 1000 1110 0000 0000 00nn nnnn 0000*/
541 /* FST.S R14,0,FRn Rn-->(R14+0) 1011 0100 1110 0000 0000 00nn nnnn 0000*/
542 /* FST.D R14,0,DRn Rn-->(R14+0) 1011 1100 1110 0000 0000 00nn nnnn 0000*/
543 #define IS_MEDIA_MOV_TO_R14(x) \
544 ((((x) & 0xfffffc0f) == 0xa0e00000) \
545 || (((x) & 0xfffffc0f) == 0xa4e00000) \
546 || (((x) & 0xfffffc0f) == 0xa8e00000) \
547 || (((x) & 0xfffffc0f) == 0xb4e00000) \
548 || (((x) & 0xfffffc0f) == 0xbce00000))
550 /* MOV Rm, Rn Rm-->Rn 0110 nnnn mmmm 0011
552 #define IS_COMPACT_IND_ARG_MOV(x) \
553 ((((x) & 0xf00f) == 0x6003) && (((x) & 0x00f0) >= 0x0020) && (((x) & 0x00f0) <= 0x0090))
555 /* compact direct arg move!
556 MOV.L Rn, @r14 0010 1110 mmmm 0010 */
557 #define IS_COMPACT_ARG_MOV(x) \
558 (((((x) & 0xff0f) == 0x2e02) && (((x) & 0x00f0) >= 0x0020) && ((x) & 0x00f0) <= 0x0090))
560 /* MOV.B Rm, @R14 0010 1110 mmmm 0000
561 MOV.W Rm, @R14 0010 1110 mmmm 0001 */
562 #define IS_COMPACT_MOV_TO_R14(x) \
563 ((((x) & 0xff0f) == 0x2e00) || (((x) & 0xff0f) == 0x2e01))
565 #define IS_JSR_R0(x) ((x) == 0x400b)
566 #define IS_NOP(x) ((x) == 0x0009)
569 /* STS.L PR,@-r15 0100111100100010
570 r15-4-->r15, PR-->(r15) */
571 #define IS_STS(x) ((x) == 0x4f22)
573 /* MOV.L Rm,@-r15 00101111mmmm0110
574 r15-4-->r15, Rm-->(R15) */
575 #define IS_PUSH(x) (((x) & 0xff0f) == 0x2f06)
577 #define GET_PUSHED_REG(x) (((x) >> 4) & 0xf)
579 /* MOV r15,r14 0110111011110011
581 #define IS_MOV_SP_FP(x) ((x) == 0x6ef3)
583 /* ADD #imm,r15 01111111iiiiiiii
585 #define IS_ADD_SP(x) (((x) & 0xff00) == 0x7f00)
587 #define IS_MOV_R3(x) (((x) & 0xff00) == 0x1a00)
588 #define IS_SHLL_R3(x) ((x) == 0x4300)
590 /* ADD r3,r15 0011111100111100
592 #define IS_ADD_R3SP(x) ((x) == 0x3f3c)
594 /* FMOV.S FRm,@-Rn Rn-4-->Rn, FRm-->(Rn) 1111nnnnmmmm1011
595 FMOV DRm,@-Rn Rn-8-->Rn, DRm-->(Rn) 1111nnnnmmm01011
596 FMOV XDm,@-Rn Rn-8-->Rn, XDm-->(Rn) 1111nnnnmmm11011 */
597 #define IS_FMOV(x) (((x) & 0xf00f) == 0xf00b)
599 /* MOV Rm,Rn Rm-->Rn 0110nnnnmmmm0011
600 MOV.L Rm,@(disp,Rn) Rm-->(dispx4+Rn) 0001nnnnmmmmdddd
601 MOV.L Rm,@Rn Rm-->(Rn) 0010nnnnmmmm0010
602 where Rm is one of r4,r5,r6,r7 which are the argument registers. */
603 #define IS_ARG_MOV(x) \
604 (((((x) & 0xf00f) == 0x6003) && (((x) & 0x00f0) >= 0x0040 && ((x) & 0x00f0) <= 0x0070)) \
605 || ((((x) & 0xf000) == 0x1000) && (((x) & 0x00f0) >= 0x0040 && ((x) & 0x00f0) <= 0x0070)) \
606 || ((((x) & 0xf00f) == 0x2002) && (((x) & 0x00f0) >= 0x0040 && ((x) & 0x00f0) <= 0x0070)))
608 /* MOV.L Rm,@(disp,r14) 00011110mmmmdddd
609 Rm-->(dispx4+r14) where Rm is one of r4,r5,r6,r7 */
610 #define IS_MOV_TO_R14(x) \
611 ((((x) & 0xff00) == 0x1e) && (((x) & 0x00f0) >= 0x0040 && ((x) & 0x00f0) <= 0x0070))
613 #define FPSCR_SZ (1 << 20)
615 /* Skip any prologue before the guts of a function */
617 /* Skip the prologue using the debug information. If this fails we'll
618 fall back on the 'guess' method below. */
620 after_prologue (CORE_ADDR pc)
622 struct symtab_and_line sal;
623 CORE_ADDR func_addr, func_end;
625 /* If we can not find the symbol in the partial symbol table, then
626 there is no hope we can determine the function's start address
628 if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end))
631 /* Get the line associated with FUNC_ADDR. */
632 sal = find_pc_line (func_addr, 0);
634 /* There are only two cases to consider. First, the end of the source line
635 is within the function bounds. In that case we return the end of the
636 source line. Second is the end of the source line extends beyond the
637 bounds of the current function. We need to use the slow code to
638 examine instructions in that case. */
639 if (sal.end < func_end)
645 /* Here we look at each instruction in the function, and try to guess
646 where the prologue ends. Unfortunately this is not always
649 sh_skip_prologue_hard_way (CORE_ADDR start_pc)
657 for (here = start_pc, end = start_pc + (2 * 28); here < end;)
659 int w = read_memory_integer (here, 2);
661 if (IS_FMOV (w) || IS_PUSH (w) || IS_STS (w) || IS_MOV_R3 (w)
662 || IS_ADD_R3SP (w) || IS_ADD_SP (w) || IS_SHLL_R3 (w)
663 || IS_ARG_MOV (w) || IS_MOV_TO_R14 (w))
667 else if (IS_MOV_SP_FP (w))
673 /* Don't bail out yet, if we are before the copy of sp. */
682 look_for_args_moves (CORE_ADDR start_pc, int media_mode)
686 int insn_size = (media_mode ? 4 : 2);
688 for (here = start_pc, end = start_pc + (insn_size * 28); here < end;)
692 w = read_memory_integer (UNMAKE_ISA32_ADDR (here), insn_size);
694 if (IS_MEDIA_IND_ARG_MOV (w))
696 /* This must be followed by a store to r14, so the argument
697 is where the debug info says it is. This can happen after
698 the SP has been saved, unfortunately. */
700 int next_insn = read_memory_integer (UNMAKE_ISA32_ADDR (here),
703 if (IS_MEDIA_MOV_TO_R14 (next_insn))
706 else if (IS_MEDIA_ARG_MOV (w))
708 /* These instructions store directly the argument in r14. */
716 w = read_memory_integer (here, insn_size);
719 if (IS_COMPACT_IND_ARG_MOV (w))
721 /* This must be followed by a store to r14, so the argument
722 is where the debug info says it is. This can happen after
723 the SP has been saved, unfortunately. */
725 int next_insn = 0xffff & read_memory_integer (here, insn_size);
727 if (IS_COMPACT_MOV_TO_R14 (next_insn))
730 else if (IS_COMPACT_ARG_MOV (w))
732 /* These instructions store directly the argument in r14. */
735 else if (IS_MOVL_R0 (w))
737 /* There is a function that gcc calls to get the arguments
738 passed correctly to the function. Only after this
739 function call the arguments will be found at the place
740 where they are supposed to be. This happens in case the
741 argument has to be stored into a 64-bit register (for
742 instance doubles, long longs). SHcompact doesn't have
743 access to the full 64-bits, so we store the register in
744 stack slot and store the address of the stack slot in
745 the register, then do a call through a wrapper that
746 loads the memory value into the register. A SHcompact
747 callee calls an argument decoder
748 (GCC_shcompact_incoming_args) that stores the 64-bit
749 value in a stack slot and stores the address of the
750 stack slot in the register. GCC thinks the argument is
751 just passed by transparent reference, but this is only
752 true after the argument decoder is called. Such a call
753 needs to be considered part of the prologue. */
755 /* This must be followed by a JSR @r0 instruction and by
756 a NOP instruction. After these, the prologue is over! */
758 int next_insn = 0xffff & read_memory_integer (here, insn_size);
760 if (IS_JSR_R0 (next_insn))
762 next_insn = 0xffff & read_memory_integer (here, insn_size);
765 if (IS_NOP (next_insn))
778 sh64_skip_prologue_hard_way (CORE_ADDR start_pc)
788 if (pc_is_isa32 (start_pc) == 0)
794 for (here = start_pc, end = start_pc + (insn_size * 28); here < end;)
799 int w = read_memory_integer (UNMAKE_ISA32_ADDR (here), insn_size);
801 if (IS_STQ_R18_R14 (w) || IS_STQ_R18_R15 (w) || IS_STQ_R14_R15 (w)
802 || IS_STL_R14_R15 (w) || IS_STL_R18_R15 (w)
803 || IS_ADDIL_SP_MEDIA (w) || IS_ADDI_SP_MEDIA (w) || IS_PTABSL_R18 (w))
807 else if (IS_MOV_SP_FP (w) || IS_MOV_SP_FP_MEDIA(w))
815 /* Don't bail out yet, we may have arguments stored in
816 registers here, according to the debug info, so that
817 gdb can print the frames correctly. */
818 start_pc = look_for_args_moves (here - insn_size, media_mode);
824 int w = 0xffff & read_memory_integer (here, insn_size);
827 if (IS_STS_R0 (w) || IS_STS_PR (w)
828 || IS_MOV_TO_R15 (w) || IS_MOV_R14 (w)
829 || IS_MOV_R0 (w) || IS_ADD_SP_R0 (w) || IS_MOV_R14_R0 (w))
833 else if (IS_MOV_SP_FP (w))
841 /* Don't bail out yet, we may have arguments stored in
842 registers here, according to the debug info, so that
843 gdb can print the frames correctly. */
844 start_pc = look_for_args_moves (here - insn_size, media_mode);
854 sh_skip_prologue (CORE_ADDR pc)
856 CORE_ADDR post_prologue_pc;
858 /* See if we can determine the end of the prologue via the symbol table.
859 If so, then return either PC, or the PC after the prologue, whichever
861 post_prologue_pc = after_prologue (pc);
863 /* If after_prologue returned a useful address, then use it. Else
864 fall back on the instruction skipping code. */
865 if (post_prologue_pc != 0)
866 return max (pc, post_prologue_pc);
868 return (skip_prologue_hard_way (pc));
871 /* Immediately after a function call, return the saved pc.
872 Can't always go through the frames for this because on some machines
873 the new frame is not set up until the new function executes
876 The return address is the value saved in the PR register + 4 */
878 sh_saved_pc_after_call (struct frame_info *frame)
880 return (ADDR_BITS_REMOVE (read_register (gdbarch_tdep (current_gdbarch)->PR_REGNUM)));
883 /* Should call_function allocate stack space for a struct return? */
885 sh_use_struct_convention (int gcc_p, struct type *type)
888 return (TYPE_LENGTH (type) > 1);
890 int len = TYPE_LENGTH (type);
891 int nelem = TYPE_NFIELDS (type);
892 return ((len != 1 && len != 2 && len != 4 && len != 8) || nelem != 1) &&
893 (len != 8 || TYPE_LENGTH (TYPE_FIELD_TYPE (type, 0)) != 4);
898 sh64_use_struct_convention (int gcc_p, struct type *type)
900 return (TYPE_LENGTH (type) > 8);
903 /* Store the address of the place in which to copy the structure the
904 subroutine will return. This is called from call_function.
906 We store structs through a pointer passed in R2 */
908 sh_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
910 write_register (STRUCT_RETURN_REGNUM, (addr));
913 /* Disassemble an instruction. */
915 gdb_print_insn_sh (bfd_vma memaddr, disassemble_info *info)
917 info->endian = TARGET_BYTE_ORDER;
918 return print_insn_sh (memaddr, info);
921 /* Given a GDB frame, determine the address of the calling function's
922 frame. This will be used to create a new GDB frame struct, and
923 then INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC will be
924 called for the new frame.
926 For us, the frame address is its stack pointer value, so we look up
927 the function prologue to determine the caller's sp value, and return it. */
929 sh_frame_chain (struct frame_info *frame)
931 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
932 return frame->frame; /* dummy frame same as caller's frame */
933 if (get_frame_pc (frame) && !inside_entry_file (get_frame_pc (frame)))
934 return read_memory_integer (get_frame_base (frame) + frame->extra_info->f_offset, 4);
939 /* Given a register number RN as it appears in an assembly
940 instruction, find the corresponding register number in the GDB
943 translate_insn_rn (int rn, int media_mode)
945 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
947 /* FIXME: this assumes that the number rn is for a not pseudo
953 /* These registers don't have a corresponding compact one. */
954 /* FIXME: This is probably not enough. */
956 if ((rn >= 16 && rn <= 63) || (rn >= 93 && rn <= 140))
959 if (rn >= 0 && rn <= tdep->R0_C_REGNUM)
960 return tdep->R0_C_REGNUM + rn;
967 sh64_frame_chain (struct frame_info *frame)
969 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
970 return frame->frame; /* dummy frame same as caller's frame */
971 if (get_frame_pc (frame) && !inside_entry_file (get_frame_pc (frame)))
973 int media_mode = pc_is_isa32 (get_frame_pc (frame));
975 if (gdbarch_tdep (current_gdbarch)->sh_abi == SH_ABI_32)
978 size = REGISTER_RAW_SIZE (translate_insn_rn (FP_REGNUM, media_mode));
979 return read_memory_integer (get_frame_base (frame) + frame->extra_info->f_offset, size);
985 /* Find REGNUM on the stack. Otherwise, it's in an active register. One thing
986 we might want to do here is to check REGNUM against the clobber mask, and
987 somehow flag it as invalid if it isn't saved on the stack somewhere. This
988 would provide a graceful failure mode when trying to get the value of
989 caller-saves registers for an inner frame. */
991 sh_find_callers_reg (struct frame_info *fi, int regnum)
993 for (; fi; fi = fi->next)
994 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
995 /* When the caller requests PR from the dummy frame, we return PC because
996 that's where the previous routine appears to have done a call from. */
997 return deprecated_read_register_dummy (get_frame_pc (fi), fi->frame, regnum);
1000 FRAME_INIT_SAVED_REGS (fi);
1001 if (!get_frame_pc (fi))
1003 if (fi->saved_regs[regnum] != 0)
1004 return read_memory_integer (fi->saved_regs[regnum],
1005 REGISTER_RAW_SIZE (regnum));
1007 return read_register (regnum);
1011 sh64_get_saved_pr (struct frame_info *fi, int pr_regnum)
1015 for (; fi; fi = fi->next)
1016 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
1017 /* When the caller requests PR from the dummy frame, we return PC because
1018 that's where the previous routine appears to have done a call from. */
1019 return deprecated_read_register_dummy (get_frame_pc (fi), fi->frame, pr_regnum);
1022 FRAME_INIT_SAVED_REGS (fi);
1023 if (!get_frame_pc (fi))
1026 media_mode = pc_is_isa32 (get_frame_pc (fi));
1028 if (fi->saved_regs[pr_regnum] != 0)
1030 int gdb_reg_num = translate_insn_rn (pr_regnum, media_mode);
1031 int size = ((gdbarch_tdep (current_gdbarch)->sh_abi == SH_ABI_32)
1033 : REGISTER_RAW_SIZE (gdb_reg_num));
1034 return read_memory_integer (fi->saved_regs[pr_regnum], size);
1037 return read_register (pr_regnum);
1040 /* Put here the code to store, into a struct frame_saved_regs, the
1041 addresses of the saved registers of frame described by FRAME_INFO.
1042 This includes special registers such as pc and fp saved in special
1043 ways in the stack frame. sp is even more special: the address we
1044 return for it IS the sp for the next frame. */
1046 sh_nofp_frame_init_saved_regs (struct frame_info *fi)
1048 int *where = (int *) alloca ((NUM_REGS + NUM_PSEUDO_REGS) * sizeof(int));
1056 char *dummy_regs = deprecated_generic_find_dummy_frame (get_frame_pc (fi), fi->frame);
1058 if (fi->saved_regs == NULL)
1059 frame_saved_regs_zalloc (fi);
1061 memset (fi->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS);
1065 /* DANGER! This is ONLY going to work if the char buffer format of
1066 the saved registers is byte-for-byte identical to the
1067 CORE_ADDR regs[NUM_REGS] format used by struct frame_saved_regs! */
1068 memcpy (fi->saved_regs, dummy_regs, sizeof (fi->saved_regs));
1072 fi->extra_info->leaf_function = 1;
1073 fi->extra_info->f_offset = 0;
1075 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1080 /* Loop around examining the prologue insns until we find something
1081 that does not appear to be part of the prologue. But give up
1082 after 20 of them, since we're getting silly then. */
1084 pc = get_pc_function_start (get_frame_pc (fi));
1087 deprecated_update_frame_pc_hack (fi, 0);
1091 for (opc = pc + (2 * 28); pc < opc; pc += 2)
1093 insn = read_memory_integer (pc, 2);
1094 /* See where the registers will be saved to */
1097 rn = GET_PUSHED_REG (insn);
1101 else if (IS_STS (insn))
1103 where[gdbarch_tdep (current_gdbarch)->PR_REGNUM] = depth;
1104 /* If we're storing the pr then this isn't a leaf */
1105 fi->extra_info->leaf_function = 0;
1108 else if (IS_MOV_R3 (insn))
1110 r3_val = ((insn & 0xff) ^ 0x80) - 0x80;
1112 else if (IS_SHLL_R3 (insn))
1116 else if (IS_ADD_R3SP (insn))
1120 else if (IS_ADD_SP (insn))
1122 depth -= ((insn & 0xff) ^ 0x80) - 0x80;
1124 else if (IS_MOV_SP_FP (insn))
1126 #if 0 /* This used to just stop when it found an instruction that
1127 was not considered part of the prologue. Now, we just
1128 keep going looking for likely instructions. */
1134 /* Now we know how deep things are, we can work out their addresses */
1136 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1140 if (rn == FP_REGNUM)
1143 fi->saved_regs[rn] = fi->frame - where[rn] + depth - 4;
1147 fi->saved_regs[rn] = 0;
1153 fi->saved_regs[SP_REGNUM] = read_memory_integer (fi->saved_regs[FP_REGNUM], 4);
1157 fi->saved_regs[SP_REGNUM] = fi->frame - 4;
1160 fi->extra_info->f_offset = depth - where[FP_REGNUM] - 4;
1161 /* Work out the return pc - either from the saved pr or the pr
1165 /* For vectors of 4 floating point registers. */
1167 fv_reg_base_num (int fv_regnum)
1171 fp_regnum = FP0_REGNUM +
1172 (fv_regnum - gdbarch_tdep (current_gdbarch)->FV0_REGNUM) * 4;
1176 /* For double precision floating point registers, i.e 2 fp regs.*/
1178 dr_reg_base_num (int dr_regnum)
1182 fp_regnum = FP0_REGNUM +
1183 (dr_regnum - gdbarch_tdep (current_gdbarch)->DR0_REGNUM) * 2;
1187 /* For pairs of floating point registers */
1189 fpp_reg_base_num (int fpp_regnum)
1193 fp_regnum = FP0_REGNUM +
1194 (fpp_regnum - gdbarch_tdep (current_gdbarch)->FPP0_REGNUM) * 2;
1199 is_media_pseudo (int rn)
1201 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1203 return (rn >= tdep->DR0_REGNUM
1204 && rn <= tdep->FV_LAST_REGNUM);
1208 sh64_get_gdb_regnum (int gcc_regnum, CORE_ADDR pc)
1210 return translate_insn_rn (gcc_regnum, pc_is_isa32 (pc));
1214 sh64_media_reg_base_num (int reg_nr)
1216 int base_regnum = -1;
1217 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1219 if (reg_nr >= tdep->DR0_REGNUM
1220 && reg_nr <= tdep->DR_LAST_REGNUM)
1221 base_regnum = dr_reg_base_num (reg_nr);
1223 else if (reg_nr >= tdep->FPP0_REGNUM
1224 && reg_nr <= tdep->FPP_LAST_REGNUM)
1225 base_regnum = fpp_reg_base_num (reg_nr);
1227 else if (reg_nr >= tdep->FV0_REGNUM
1228 && reg_nr <= tdep->FV_LAST_REGNUM)
1229 base_regnum = fv_reg_base_num (reg_nr);
1236 SH COMPACT MODE (ISA 16) (all pseudo) 221-272
1237 GDB_REGNUM BASE_REGNUM
1297 sh64_compact_reg_base_num (int reg_nr)
1299 int base_regnum = -1;
1300 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1302 /* general register N maps to general register N */
1303 if (reg_nr >= tdep->R0_C_REGNUM
1304 && reg_nr <= tdep->R_LAST_C_REGNUM)
1305 base_regnum = reg_nr - tdep->R0_C_REGNUM;
1307 /* floating point register N maps to floating point register N */
1308 else if (reg_nr >= tdep->FP0_C_REGNUM
1309 && reg_nr <= tdep->FP_LAST_C_REGNUM)
1310 base_regnum = reg_nr - tdep->FP0_C_REGNUM + FP0_REGNUM;
1312 /* double prec register N maps to base regnum for double prec register N */
1313 else if (reg_nr >= tdep->DR0_C_REGNUM
1314 && reg_nr <= tdep->DR_LAST_C_REGNUM)
1315 base_regnum = dr_reg_base_num (tdep->DR0_REGNUM
1316 + reg_nr - tdep->DR0_C_REGNUM);
1318 /* vector N maps to base regnum for vector register N */
1319 else if (reg_nr >= tdep->FV0_C_REGNUM
1320 && reg_nr <= tdep->FV_LAST_C_REGNUM)
1321 base_regnum = fv_reg_base_num (tdep->FV0_REGNUM
1322 + reg_nr - tdep->FV0_C_REGNUM);
1324 else if (reg_nr == tdep->PC_C_REGNUM)
1325 base_regnum = PC_REGNUM;
1327 else if (reg_nr == tdep->GBR_C_REGNUM)
1330 else if (reg_nr == tdep->MACH_C_REGNUM
1331 || reg_nr == tdep->MACL_C_REGNUM)
1334 else if (reg_nr == tdep->PR_C_REGNUM)
1337 else if (reg_nr == tdep->T_C_REGNUM)
1340 else if (reg_nr == tdep->FPSCR_C_REGNUM)
1341 base_regnum = tdep->FPSCR_REGNUM; /*???? this register is a mess. */
1343 else if (reg_nr == tdep->FPUL_C_REGNUM)
1344 base_regnum = FP0_REGNUM + 32;
1349 /* Given a register number RN (according to the gdb scheme) , return
1350 its corresponding architectural register. In media mode, only a
1351 subset of the registers is pseudo registers. For compact mode, all
1352 the registers are pseudo. */
1354 translate_rn_to_arch_reg_num (int rn, int media_mode)
1359 if (!is_media_pseudo (rn))
1362 return sh64_media_reg_base_num (rn);
1365 /* All compact registers are pseudo. */
1366 return sh64_compact_reg_base_num (rn);
1370 sign_extend (int value, int bits)
1372 value = value & ((1 << bits) - 1);
1373 return (value & (1 << (bits - 1))
1374 ? value | (~((1 << bits) - 1))
1379 sh64_nofp_frame_init_saved_regs (struct frame_info *fi)
1381 int *where = (int *) alloca ((NUM_REGS + NUM_PSEUDO_REGS) * sizeof (int));
1393 int gdb_register_number;
1394 int register_number;
1395 char *dummy_regs = deprecated_generic_find_dummy_frame (get_frame_pc (fi), fi->frame);
1396 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1398 if (fi->saved_regs == NULL)
1399 frame_saved_regs_zalloc (fi);
1401 memset (fi->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS);
1405 /* DANGER! This is ONLY going to work if the char buffer format of
1406 the saved registers is byte-for-byte identical to the
1407 CORE_ADDR regs[NUM_REGS] format used by struct frame_saved_regs! */
1408 memcpy (fi->saved_regs, dummy_regs, sizeof (fi->saved_regs));
1412 fi->extra_info->leaf_function = 1;
1413 fi->extra_info->f_offset = 0;
1415 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1420 /* Loop around examining the prologue insns until we find something
1421 that does not appear to be part of the prologue. But give up
1422 after 20 of them, since we're getting silly then. */
1424 pc = get_pc_function_start (get_frame_pc (fi));
1427 deprecated_update_frame_pc_hack (fi, 0);
1431 if (pc_is_isa32 (pc))
1442 /* The frame pointer register is general register 14 in shmedia and
1443 shcompact modes. In sh compact it is a pseudo register. Same goes
1444 for the stack pointer register, which is register 15. */
1445 fp_regnum = translate_insn_rn (FP_REGNUM, media_mode);
1446 sp_regnum = translate_insn_rn (SP_REGNUM, media_mode);
1448 for (opc = pc + (insn_size * 28); pc < opc; pc += insn_size)
1450 insn = read_memory_integer (media_mode ? UNMAKE_ISA32_ADDR (pc) : pc,
1453 if (media_mode == 0)
1455 if (IS_STS_PR (insn))
1457 int next_insn = read_memory_integer (pc + insn_size, insn_size);
1458 if (IS_MOV_TO_R15 (next_insn))
1460 int reg_nr = tdep->PR_C_REGNUM;
1462 where[reg_nr] = depth - ((((next_insn & 0xf) ^ 0x8) - 0x8) << 2);
1463 fi->extra_info->leaf_function = 0;
1467 else if (IS_MOV_R14 (insn))
1469 where[fp_regnum] = depth - ((((insn & 0xf) ^ 0x8) - 0x8) << 2);
1472 else if (IS_MOV_R0 (insn))
1474 /* Put in R0 the offset from SP at which to store some
1475 registers. We are interested in this value, because it
1476 will tell us where the given registers are stored within
1478 r0_val = ((insn & 0xff) ^ 0x80) - 0x80;
1480 else if (IS_ADD_SP_R0 (insn))
1482 /* This instruction still prepares r0, but we don't care.
1483 We already have the offset in r0_val. */
1485 else if (IS_STS_R0 (insn))
1487 /* Store PR at r0_val-4 from SP. Decrement r0 by 4*/
1488 int reg_nr = tdep->PR_C_REGNUM;
1489 where[reg_nr] = depth - (r0_val - 4);
1491 fi->extra_info->leaf_function = 0;
1493 else if (IS_MOV_R14_R0 (insn))
1495 /* Store R14 at r0_val-4 from SP. Decrement r0 by 4 */
1496 where[fp_regnum] = depth - (r0_val - 4);
1500 else if (IS_ADD_SP (insn))
1502 depth -= ((insn & 0xff) ^ 0x80) - 0x80;
1504 else if (IS_MOV_SP_FP (insn))
1509 if (IS_ADDIL_SP_MEDIA (insn)
1510 || IS_ADDI_SP_MEDIA (insn))
1512 depth -= sign_extend ((((insn & 0xffc00) ^ 0x80000) - 0x80000) >> 10, 9);
1515 else if (IS_STQ_R18_R15 (insn))
1517 where[tdep->PR_REGNUM] =
1518 depth - (sign_extend ((insn & 0xffc00) >> 10, 9) << 3);
1519 fi->extra_info->leaf_function = 0;
1522 else if (IS_STL_R18_R15 (insn))
1524 where[tdep->PR_REGNUM] =
1525 depth - (sign_extend ((insn & 0xffc00) >> 10, 9) << 2);
1526 fi->extra_info->leaf_function = 0;
1529 else if (IS_STQ_R14_R15 (insn))
1531 where[fp_regnum] = depth - (sign_extend ((insn & 0xffc00) >> 10, 9) << 3);
1534 else if (IS_STL_R14_R15 (insn))
1536 where[fp_regnum] = depth - (sign_extend ((insn & 0xffc00) >> 10, 9) << 2);
1539 else if (IS_MOV_SP_FP_MEDIA (insn))
1544 /* Now we know how deep things are, we can work out their addresses. */
1545 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1547 register_number = translate_rn_to_arch_reg_num (rn, media_mode);
1551 if (rn == fp_regnum)
1554 /* Watch out! saved_regs is only for the real registers, and
1555 doesn't include space for the pseudo registers. */
1556 fi->saved_regs[register_number]= fi->frame - where[rn] + depth;
1560 fi->saved_regs[register_number] = 0;
1565 /* SP_REGNUM is 15. For shmedia 15 is the real register. For
1566 shcompact 15 is the arch register corresponding to the pseudo
1567 register r15 which still is the SP register. */
1568 /* The place on the stack where fp is stored contains the sp of
1570 /* Again, saved_registers contains only space for the real registers,
1571 so we store in FP_REGNUM position. */
1573 if (tdep->sh_abi == SH_ABI_32)
1576 size = REGISTER_RAW_SIZE (fp_regnum);
1577 fi->saved_regs[sp_regnum] = read_memory_integer (fi->saved_regs[fp_regnum], size);
1580 fi->saved_regs[sp_regnum] = fi->frame;
1582 fi->extra_info->f_offset = depth - where[fp_regnum];
1586 sh_fp_frame_init_saved_regs (struct frame_info *fi)
1588 int *where = (int *) alloca ((NUM_REGS + NUM_PSEUDO_REGS) * sizeof (int));
1596 char *dummy_regs = deprecated_generic_find_dummy_frame (get_frame_pc (fi), fi->frame);
1597 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1599 if (fi->saved_regs == NULL)
1600 frame_saved_regs_zalloc (fi);
1602 memset (fi->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS);
1606 /* DANGER! This is ONLY going to work if the char buffer format of
1607 the saved registers is byte-for-byte identical to the
1608 CORE_ADDR regs[NUM_REGS] format used by struct frame_saved_regs! */
1609 memcpy (fi->saved_regs, dummy_regs, sizeof (fi->saved_regs));
1613 fi->extra_info->leaf_function = 1;
1614 fi->extra_info->f_offset = 0;
1616 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1621 /* Loop around examining the prologue insns until we find something
1622 that does not appear to be part of the prologue. But give up
1623 after 20 of them, since we're getting silly then. */
1625 pc = get_pc_function_start (get_frame_pc (fi));
1628 deprecated_update_frame_pc_hack (fi, 0);
1632 for (opc = pc + (2 * 28); pc < opc; pc += 2)
1634 insn = read_memory_integer (pc, 2);
1635 /* See where the registers will be saved to */
1638 rn = GET_PUSHED_REG (insn);
1642 else if (IS_STS (insn))
1644 where[tdep->PR_REGNUM] = depth;
1645 /* If we're storing the pr then this isn't a leaf */
1646 fi->extra_info->leaf_function = 0;
1649 else if (IS_MOV_R3 (insn))
1651 r3_val = ((insn & 0xff) ^ 0x80) - 0x80;
1653 else if (IS_SHLL_R3 (insn))
1657 else if (IS_ADD_R3SP (insn))
1661 else if (IS_ADD_SP (insn))
1663 depth -= ((insn & 0xff) ^ 0x80) - 0x80;
1665 else if (IS_FMOV (insn))
1667 if (read_register (tdep->FPSCR_REGNUM) & FPSCR_SZ)
1676 else if (IS_MOV_SP_FP (insn))
1678 #if 0 /* This used to just stop when it found an instruction that
1679 was not considered part of the prologue. Now, we just
1680 keep going looking for likely instructions. */
1686 /* Now we know how deep things are, we can work out their addresses */
1688 for (rn = 0; rn < NUM_REGS + NUM_PSEUDO_REGS; rn++)
1692 if (rn == FP_REGNUM)
1695 fi->saved_regs[rn] = fi->frame - where[rn] + depth - 4;
1699 fi->saved_regs[rn] = 0;
1705 fi->saved_regs[SP_REGNUM] =
1706 read_memory_integer (fi->saved_regs[FP_REGNUM], 4);
1710 fi->saved_regs[SP_REGNUM] = fi->frame - 4;
1713 fi->extra_info->f_offset = depth - where[FP_REGNUM] - 4;
1714 /* Work out the return pc - either from the saved pr or the pr
1718 /* Initialize the extra info saved in a FRAME */
1720 sh_init_extra_frame_info (int fromleaf, struct frame_info *fi)
1723 fi->extra_info = (struct frame_extra_info *)
1724 frame_obstack_alloc (sizeof (struct frame_extra_info));
1727 deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (fi->next));
1729 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
1731 /* We need to setup fi->frame here because run_stack_dummy gets it wrong
1732 by assuming it's always FP. */
1733 fi->frame = deprecated_read_register_dummy (get_frame_pc (fi), fi->frame,
1735 fi->extra_info->return_pc = deprecated_read_register_dummy (get_frame_pc (fi),
1738 fi->extra_info->f_offset = -(CALL_DUMMY_LENGTH + 4);
1739 fi->extra_info->leaf_function = 0;
1744 FRAME_INIT_SAVED_REGS (fi);
1745 fi->extra_info->return_pc =
1746 sh_find_callers_reg (fi, gdbarch_tdep (current_gdbarch)->PR_REGNUM);
1751 sh64_init_extra_frame_info (int fromleaf, struct frame_info *fi)
1753 int media_mode = pc_is_isa32 (get_frame_pc (fi));
1755 fi->extra_info = (struct frame_extra_info *)
1756 frame_obstack_alloc (sizeof (struct frame_extra_info));
1759 deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (fi->next));
1761 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
1763 /* We need to setup fi->frame here because run_stack_dummy gets it wrong
1764 by assuming it's always FP. */
1765 fi->frame = deprecated_read_register_dummy (get_frame_pc (fi), fi->frame,
1767 fi->extra_info->return_pc =
1768 deprecated_read_register_dummy (get_frame_pc (fi), fi->frame, PC_REGNUM);
1769 fi->extra_info->f_offset = -(CALL_DUMMY_LENGTH + 4);
1770 fi->extra_info->leaf_function = 0;
1775 FRAME_INIT_SAVED_REGS (fi);
1776 fi->extra_info->return_pc =
1777 sh64_get_saved_pr (fi, gdbarch_tdep (current_gdbarch)->PR_REGNUM);
1782 sh64_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp,
1783 struct frame_info *frame, int regnum,
1784 enum lval_type *lval)
1787 int live_regnum = regnum;
1788 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1790 if (!target_has_registers)
1791 error ("No registers.");
1793 /* Normal systems don't optimize out things with register numbers. */
1794 if (optimized != NULL)
1797 if (addrp) /* default assumption: not found in memory */
1801 memset (raw_buffer, 0, sizeof (raw_buffer));
1803 /* We must do this here, before the following while loop changes
1804 frame, and makes it NULL. If this is a media register number,
1805 but we are in compact mode, it will become the corresponding
1806 compact pseudo register. If there is no corresponding compact
1807 pseudo-register what do we do?*/
1808 media_mode = pc_is_isa32 (get_frame_pc (frame));
1809 live_regnum = translate_insn_rn (regnum, media_mode);
1811 /* Note: since the current frame's registers could only have been
1812 saved by frames INTERIOR TO the current frame, we skip examining
1813 the current frame itself: otherwise, we would be getting the
1814 previous frame's registers which were saved by the current frame. */
1816 while (frame && ((frame = frame->next) != NULL))
1818 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
1820 if (lval) /* found it in a CALL_DUMMY frame */
1824 (deprecated_generic_find_dummy_frame (get_frame_pc (frame), frame->frame)
1825 + REGISTER_BYTE (regnum)),
1826 REGISTER_RAW_SIZE (regnum));
1830 FRAME_INIT_SAVED_REGS (frame);
1831 if (frame->saved_regs != NULL
1832 && frame->saved_regs[regnum] != 0)
1834 if (lval) /* found it saved on the stack */
1835 *lval = lval_memory;
1836 if (regnum == SP_REGNUM)
1838 if (raw_buffer) /* SP register treated specially */
1839 store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
1840 frame->saved_regs[regnum]);
1843 { /* any other register */
1846 *addrp = frame->saved_regs[regnum];
1850 if (tdep->sh_abi == SH_ABI_32
1851 && (live_regnum == FP_REGNUM
1852 || live_regnum == tdep->PR_REGNUM))
1855 size = REGISTER_RAW_SIZE (live_regnum);
1856 if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
1857 read_memory (frame->saved_regs[regnum], raw_buffer, size);
1859 read_memory (frame->saved_regs[regnum],
1861 + REGISTER_RAW_SIZE (live_regnum)
1870 /* If we get thru the loop to this point, it means the register was
1871 not saved in any frame. Return the actual live-register value. */
1873 if (lval) /* found it in a live register */
1874 *lval = lval_register;
1876 *addrp = REGISTER_BYTE (live_regnum);
1878 deprecated_read_register_gen (live_regnum, raw_buffer);
1881 /* Extract from an array REGBUF containing the (raw) register state
1882 the address in which a function should return its structure value,
1883 as a CORE_ADDR (or an expression that can be used as one). */
1885 sh_extract_struct_value_address (char *regbuf)
1887 return (extract_address ((regbuf), REGISTER_RAW_SIZE (0)));
1891 sh64_extract_struct_value_address (char *regbuf)
1893 return (extract_address ((regbuf + REGISTER_BYTE (STRUCT_RETURN_REGNUM)),
1894 REGISTER_RAW_SIZE (STRUCT_RETURN_REGNUM)));
1898 sh_frame_saved_pc (struct frame_info *frame)
1900 return ((frame)->extra_info->return_pc);
1903 /* Discard from the stack the innermost frame,
1904 restoring all saved registers. */
1908 register struct frame_info *frame = get_current_frame ();
1909 register CORE_ADDR fp;
1910 register int regnum;
1912 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
1913 generic_pop_dummy_frame ();
1916 fp = get_frame_base (frame);
1917 FRAME_INIT_SAVED_REGS (frame);
1919 /* Copy regs from where they were saved in the frame */
1920 for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
1921 if (frame->saved_regs[regnum])
1922 write_register (regnum,
1923 read_memory_integer (frame->saved_regs[regnum], 4));
1925 write_register (PC_REGNUM, frame->extra_info->return_pc);
1926 write_register (SP_REGNUM, fp + 4);
1928 flush_cached_frames ();
1931 /* Used in the 'return' command. */
1933 sh64_pop_frame (void)
1935 register struct frame_info *frame = get_current_frame ();
1936 register CORE_ADDR fp;
1937 register int regnum;
1938 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
1940 int media_mode = pc_is_isa32 (get_frame_pc (frame));
1942 if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
1943 generic_pop_dummy_frame ();
1946 fp = get_frame_base (frame);
1947 FRAME_INIT_SAVED_REGS (frame);
1949 /* Copy regs from where they were saved in the frame */
1950 for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
1951 if (frame->saved_regs[regnum])
1954 if (tdep->sh_abi == SH_ABI_32
1955 && (regnum == FP_REGNUM
1956 || regnum == tdep->PR_REGNUM))
1959 size = REGISTER_RAW_SIZE (translate_insn_rn (regnum,
1961 write_register (regnum,
1962 read_memory_integer (frame->saved_regs[regnum],
1966 write_register (PC_REGNUM, frame->extra_info->return_pc);
1967 write_register (SP_REGNUM, fp + 8);
1969 flush_cached_frames ();
1972 /* Function: push_arguments
1973 Setup the function arguments for calling a function in the inferior.
1975 On the Hitachi SH architecture, there are four registers (R4 to R7)
1976 which are dedicated for passing function arguments. Up to the first
1977 four arguments (depending on size) may go into these registers.
1978 The rest go on the stack.
1980 Arguments that are smaller than 4 bytes will still take up a whole
1981 register or a whole 32-bit word on the stack, and will be
1982 right-justified in the register or the stack word. This includes
1983 chars, shorts, and small aggregate types.
1985 Arguments that are larger than 4 bytes may be split between two or
1986 more registers. If there are not enough registers free, an argument
1987 may be passed partly in a register (or registers), and partly on the
1988 stack. This includes doubles, long longs, and larger aggregates.
1989 As far as I know, there is no upper limit to the size of aggregates
1990 that will be passed in this way; in other words, the convention of
1991 passing a pointer to a large aggregate instead of a copy is not used.
1993 An exceptional case exists for struct arguments (and possibly other
1994 aggregates such as arrays) if the size is larger than 4 bytes but
1995 not a multiple of 4 bytes. In this case the argument is never split
1996 between the registers and the stack, but instead is copied in its
1997 entirety onto the stack, AND also copied into as many registers as
1998 there is room for. In other words, space in registers permitting,
1999 two copies of the same argument are passed in. As far as I can tell,
2000 only the one on the stack is used, although that may be a function
2001 of the level of compiler optimization. I suspect this is a compiler
2002 bug. Arguments of these odd sizes are left-justified within the
2003 word (as opposed to arguments smaller than 4 bytes, which are
2006 If the function is to return an aggregate type such as a struct, it
2007 is either returned in the normal return value register R0 (if its
2008 size is no greater than one byte), or else the caller must allocate
2009 space into which the callee will copy the return value (if the size
2010 is greater than one byte). In this case, a pointer to the return
2011 value location is passed into the callee in register R2, which does
2012 not displace any of the other arguments passed in via registers R4
2016 sh_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
2017 int struct_return, CORE_ADDR struct_addr)
2019 int stack_offset, stack_alloc;
2027 int odd_sized_struct;
2028 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2030 /* first force sp to a 4-byte alignment */
2033 /* The "struct return pointer" pseudo-argument has its own dedicated
2036 write_register (STRUCT_RETURN_REGNUM, struct_addr);
2038 /* Now make sure there's space on the stack */
2039 for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
2040 stack_alloc += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3);
2041 sp -= stack_alloc; /* make room on stack for args */
2043 /* Now load as many as possible of the first arguments into
2044 registers, and push the rest onto the stack. There are 16 bytes
2045 in four registers available. Loop thru args from first to last. */
2047 argreg = tdep->ARG0_REGNUM;
2048 for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++)
2050 type = VALUE_TYPE (args[argnum]);
2051 len = TYPE_LENGTH (type);
2052 memset (valbuf, 0, sizeof (valbuf));
2055 /* value gets right-justified in the register or stack word */
2056 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2057 memcpy (valbuf + (4 - len),
2058 (char *) VALUE_CONTENTS (args[argnum]), len);
2060 memcpy (valbuf, (char *) VALUE_CONTENTS (args[argnum]), len);
2064 val = (char *) VALUE_CONTENTS (args[argnum]);
2066 if (len > 4 && (len & 3) != 0)
2067 odd_sized_struct = 1; /* such structs go entirely on stack */
2069 odd_sized_struct = 0;
2072 if (argreg > tdep->ARGLAST_REGNUM
2073 || odd_sized_struct)
2075 /* must go on the stack */
2076 write_memory (sp + stack_offset, val, 4);
2079 /* NOTE WELL!!!!! This is not an "else if" clause!!!
2080 That's because some *&^%$ things get passed on the stack
2081 AND in the registers! */
2082 if (argreg <= tdep->ARGLAST_REGNUM)
2084 /* there's room in a register */
2085 regval = extract_address (val, REGISTER_RAW_SIZE (argreg));
2086 write_register (argreg++, regval);
2088 /* Store the value 4 bytes at a time. This means that things
2089 larger than 4 bytes may go partly in registers and partly
2091 len -= REGISTER_RAW_SIZE (argreg);
2092 val += REGISTER_RAW_SIZE (argreg);
2098 /* R2-R9 for integer types and integer equivalent (char, pointers) and
2099 non-scalar (struct, union) elements (even if the elements are
2101 FR0-FR11 for single precision floating point (float)
2102 DR0-DR10 for double precision floating point (double)
2104 If a float is argument number 3 (for instance) and arguments number
2105 1,2, and 4 are integer, the mapping will be:
2106 arg1 -->R2, arg2 --> R3, arg3 -->FR0, arg4 --> R5. I.e. R4 is not used.
2108 If a float is argument number 10 (for instance) and arguments number
2109 1 through 10 are integer, the mapping will be:
2110 arg1->R2, arg2->R3, arg3->R4, arg4->R5, arg5->R6, arg6->R7, arg7->R8,
2111 arg8->R9, arg9->(0,SP)stack(8-byte aligned), arg10->FR0, arg11->stack(16,SP).
2112 I.e. there is hole in the stack.
2114 Different rules apply for variable arguments functions, and for functions
2115 for which the prototype is not known. */
2118 sh64_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
2119 int struct_return, CORE_ADDR struct_addr)
2121 int stack_offset, stack_alloc;
2125 int float_arg_index = 0;
2126 int double_arg_index = 0;
2136 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2138 memset (fp_args, 0, sizeof (fp_args));
2140 /* first force sp to a 8-byte alignment */
2143 /* The "struct return pointer" pseudo-argument has its own dedicated
2147 write_register (STRUCT_RETURN_REGNUM, struct_addr);
2149 /* Now make sure there's space on the stack */
2150 for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
2151 stack_alloc += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 7) & ~7);
2152 sp -= stack_alloc; /* make room on stack for args */
2154 /* Now load as many as possible of the first arguments into
2155 registers, and push the rest onto the stack. There are 64 bytes
2156 in eight registers available. Loop thru args from first to last. */
2158 int_argreg = tdep->ARG0_REGNUM;
2159 float_argreg = FP0_REGNUM;
2160 double_argreg = tdep->DR0_REGNUM;
2162 for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++)
2164 type = VALUE_TYPE (args[argnum]);
2165 len = TYPE_LENGTH (type);
2166 memset (valbuf, 0, sizeof (valbuf));
2168 if (TYPE_CODE (type) != TYPE_CODE_FLT)
2170 argreg_size = REGISTER_RAW_SIZE (int_argreg);
2172 if (len < argreg_size)
2174 /* value gets right-justified in the register or stack word */
2175 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2176 memcpy (valbuf + argreg_size - len,
2177 (char *) VALUE_CONTENTS (args[argnum]), len);
2179 memcpy (valbuf, (char *) VALUE_CONTENTS (args[argnum]), len);
2184 val = (char *) VALUE_CONTENTS (args[argnum]);
2188 if (int_argreg > tdep->ARGLAST_REGNUM)
2190 /* must go on the stack */
2191 write_memory (sp + stack_offset, val, argreg_size);
2192 stack_offset += 8;/*argreg_size;*/
2194 /* NOTE WELL!!!!! This is not an "else if" clause!!!
2195 That's because some *&^%$ things get passed on the stack
2196 AND in the registers! */
2197 if (int_argreg <= tdep->ARGLAST_REGNUM)
2199 /* there's room in a register */
2200 regval = extract_address (val, argreg_size);
2201 write_register (int_argreg, regval);
2203 /* Store the value 8 bytes at a time. This means that
2204 things larger than 8 bytes may go partly in registers
2205 and partly on the stack. FIXME: argreg is incremented
2206 before we use its size. */
2214 val = (char *) VALUE_CONTENTS (args[argnum]);
2217 /* Where is it going to be stored? */
2218 while (fp_args[float_arg_index])
2221 /* Now float_argreg points to the register where it
2222 should be stored. Are we still within the allowed
2224 if (float_arg_index <= tdep->FLOAT_ARGLAST_REGNUM)
2226 /* Goes in FR0...FR11 */
2227 deprecated_write_register_gen (FP0_REGNUM + float_arg_index,
2229 fp_args[float_arg_index] = 1;
2230 /* Skip the corresponding general argument register. */
2235 /* Store it as the integers, 8 bytes at the time, if
2236 necessary spilling on the stack. */
2241 /* Where is it going to be stored? */
2242 while (fp_args[double_arg_index])
2243 double_arg_index += 2;
2244 /* Now double_argreg points to the register
2245 where it should be stored.
2246 Are we still within the allowed register set? */
2247 if (double_arg_index < tdep->FLOAT_ARGLAST_REGNUM)
2249 /* Goes in DR0...DR10 */
2250 /* The numbering of the DRi registers is consecutive,
2251 i.e. includes odd numbers. */
2252 int double_register_offset = double_arg_index / 2;
2253 int regnum = tdep->DR0_REGNUM +
2254 double_register_offset;
2256 if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
2258 memset (valbuf_tmp, 0, sizeof (valbuf_tmp));
2259 REGISTER_CONVERT_TO_VIRTUAL (regnum,
2260 type, val, valbuf_tmp);
2264 /* Note: must use write_register_gen here instead
2265 of regcache_raw_write, because
2266 regcache_raw_write works only for real
2267 registers, not pseudo. write_register_gen will
2268 call the gdbarch function to do register
2269 writes, and that will properly know how to deal
2271 deprecated_write_register_gen (regnum, val);
2272 fp_args[double_arg_index] = 1;
2273 fp_args[double_arg_index + 1] = 1;
2274 /* Skip the corresponding general argument register. */
2279 /* Store it as the integers, 8 bytes at the time, if
2280 necessary spilling on the stack. */
2287 /* Function: push_return_address (pc)
2288 Set up the return address for the inferior function call.
2289 Needed for targets where we don't actually execute a JSR/BSR instruction */
2292 sh_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
2294 write_register (gdbarch_tdep (current_gdbarch)->PR_REGNUM,
2295 CALL_DUMMY_ADDRESS ());
2299 /* Function: fix_call_dummy
2300 Poke the callee function's address into the destination part of
2301 the CALL_DUMMY. The address is actually stored in a data word
2302 following the actualy CALL_DUMMY instructions, which will load
2303 it into a register using PC-relative addressing. This function
2304 expects the CALL_DUMMY to look like this:
2315 sh_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
2316 struct value **args, struct type *type, int gcc_p)
2318 *(unsigned long *) (dummy + 8) = fun;
2323 sh_coerce_float_to_double (struct type *formal, struct type *actual)
2328 /* Find a function's return value in the appropriate registers (in
2329 regbuf), and copy it into valbuf. Extract from an array REGBUF
2330 containing the (raw) register state a function return value of type
2331 TYPE, and copy that, in virtual format, into VALBUF. */
2333 sh_extract_return_value (struct type *type, char *regbuf, char *valbuf)
2335 int len = TYPE_LENGTH (type);
2336 int return_register = R0_REGNUM;
2341 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2342 offset = REGISTER_BYTE (return_register) + 4 - len;
2344 offset = REGISTER_BYTE (return_register);
2345 memcpy (valbuf, regbuf + offset, len);
2349 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2350 offset = REGISTER_BYTE (return_register) + 8 - len;
2352 offset = REGISTER_BYTE (return_register);
2353 memcpy (valbuf, regbuf + offset, len);
2356 error ("bad size for return value");
2360 sh3e_sh4_extract_return_value (struct type *type, char *regbuf, char *valbuf)
2362 int return_register;
2364 int len = TYPE_LENGTH (type);
2366 if (TYPE_CODE (type) == TYPE_CODE_FLT)
2367 return_register = FP0_REGNUM;
2369 return_register = R0_REGNUM;
2371 if (len == 8 && TYPE_CODE (type) == TYPE_CODE_FLT)
2374 if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
2375 floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword,
2376 (char *) regbuf + REGISTER_BYTE (return_register),
2379 floatformat_to_doublest (&floatformat_ieee_double_big,
2380 (char *) regbuf + REGISTER_BYTE (return_register),
2382 store_floating (valbuf, len, val);
2386 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2387 offset = REGISTER_BYTE (return_register) + 4 - len;
2389 offset = REGISTER_BYTE (return_register);
2390 memcpy (valbuf, regbuf + offset, len);
2394 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2395 offset = REGISTER_BYTE (return_register) + 8 - len;
2397 offset = REGISTER_BYTE (return_register);
2398 memcpy (valbuf, regbuf + offset, len);
2401 error ("bad size for return value");
2405 sh64_extract_return_value (struct type *type, char *regbuf, char *valbuf)
2408 int return_register;
2409 int len = TYPE_LENGTH (type);
2410 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2412 if (TYPE_CODE (type) == TYPE_CODE_FLT)
2416 /* Return value stored in FP0_REGNUM */
2417 return_register = FP0_REGNUM;
2418 offset = REGISTER_BYTE (return_register);
2419 memcpy (valbuf, (char *) regbuf + offset, len);
2423 /* return value stored in DR0_REGNUM */
2426 return_register = tdep->DR0_REGNUM;
2427 offset = REGISTER_BYTE (return_register);
2429 if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
2430 floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword,
2431 (char *) regbuf + offset, &val);
2433 floatformat_to_doublest (&floatformat_ieee_double_big,
2434 (char *) regbuf + offset, &val);
2435 store_floating (valbuf, len, val);
2442 /* Result is in register 2. If smaller than 8 bytes, it is padded
2443 at the most significant end. */
2444 return_register = tdep->RETURN_REGNUM;
2445 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2446 offset = REGISTER_BYTE (return_register) +
2447 REGISTER_RAW_SIZE (return_register) - len;
2449 offset = REGISTER_BYTE (return_register);
2450 memcpy (valbuf, (char *) regbuf + offset, len);
2453 error ("bad size for return value");
2457 /* Write into appropriate registers a function return value
2458 of type TYPE, given in virtual format.
2459 If the architecture is sh4 or sh3e, store a function's return value
2460 in the R0 general register or in the FP0 floating point register,
2461 depending on the type of the return value. In all the other cases
2462 the result is stored in r0, left-justified. */
2464 sh_default_store_return_value (struct type *type, char *valbuf)
2466 char buf[32]; /* more than enough... */
2468 if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (R0_REGNUM))
2470 /* Add leading zeros to the value. */
2471 memset (buf, 0, REGISTER_RAW_SIZE (R0_REGNUM));
2472 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
2473 memcpy (buf + REGISTER_RAW_SIZE (R0_REGNUM) - TYPE_LENGTH (type),
2474 valbuf, TYPE_LENGTH (type));
2476 memcpy (buf, valbuf, TYPE_LENGTH (type));
2477 deprecated_write_register_bytes (REGISTER_BYTE (R0_REGNUM), buf,
2478 REGISTER_RAW_SIZE (R0_REGNUM));
2481 deprecated_write_register_bytes (REGISTER_BYTE (R0_REGNUM), valbuf,
2482 TYPE_LENGTH (type));
2486 sh3e_sh4_store_return_value (struct type *type, char *valbuf)
2488 if (TYPE_CODE (type) == TYPE_CODE_FLT)
2489 deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
2490 valbuf, TYPE_LENGTH (type));
2492 sh_default_store_return_value (type, valbuf);
2496 sh64_store_return_value (struct type *type, char *valbuf)
2498 char buf[64]; /* more than enough... */
2499 int len = TYPE_LENGTH (type);
2501 if (TYPE_CODE (type) == TYPE_CODE_FLT)
2505 /* Return value stored in FP0_REGNUM */
2506 deprecated_write_register_gen (FP0_REGNUM, valbuf);
2510 /* return value stored in DR0_REGNUM */
2511 /* FIXME: Implement */
2516 int return_register = gdbarch_tdep (current_gdbarch)->RETURN_REGNUM;
2519 if (len <= REGISTER_RAW_SIZE (return_register))
2521 /* Pad with zeros. */
2522 memset (buf, 0, REGISTER_RAW_SIZE (return_register));
2523 if (TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE)
2524 offset = 0; /*REGISTER_RAW_SIZE (return_register) - len;*/
2526 offset = REGISTER_RAW_SIZE (return_register) - len;
2528 memcpy (buf + offset, valbuf, len);
2529 deprecated_write_register_gen (return_register, buf);
2532 deprecated_write_register_gen (return_register, valbuf);
2536 /* Print the registers in a form similar to the E7000 */
2539 sh_generic_show_regs (void)
2541 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2543 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2544 paddr (read_register (PC_REGNUM)),
2545 (long) read_register (tdep->SR_REGNUM),
2546 (long) read_register (tdep->PR_REGNUM),
2547 (long) read_register (MACH_REGNUM),
2548 (long) read_register (MACL_REGNUM));
2550 printf_filtered ("GBR=%08lx VBR=%08lx",
2551 (long) read_register (GBR_REGNUM),
2552 (long) read_register (VBR_REGNUM));
2554 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2555 (long) read_register (0),
2556 (long) read_register (1),
2557 (long) read_register (2),
2558 (long) read_register (3),
2559 (long) read_register (4),
2560 (long) read_register (5),
2561 (long) read_register (6),
2562 (long) read_register (7));
2563 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2564 (long) read_register (8),
2565 (long) read_register (9),
2566 (long) read_register (10),
2567 (long) read_register (11),
2568 (long) read_register (12),
2569 (long) read_register (13),
2570 (long) read_register (14),
2571 (long) read_register (15));
2575 sh3_show_regs (void)
2577 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2579 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2580 paddr (read_register (PC_REGNUM)),
2581 (long) read_register (tdep->SR_REGNUM),
2582 (long) read_register (tdep->PR_REGNUM),
2583 (long) read_register (MACH_REGNUM),
2584 (long) read_register (MACL_REGNUM));
2586 printf_filtered ("GBR=%08lx VBR=%08lx",
2587 (long) read_register (GBR_REGNUM),
2588 (long) read_register (VBR_REGNUM));
2589 printf_filtered (" SSR=%08lx SPC=%08lx",
2590 (long) read_register (tdep->SSR_REGNUM),
2591 (long) read_register (tdep->SPC_REGNUM));
2593 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2594 (long) read_register (0),
2595 (long) read_register (1),
2596 (long) read_register (2),
2597 (long) read_register (3),
2598 (long) read_register (4),
2599 (long) read_register (5),
2600 (long) read_register (6),
2601 (long) read_register (7));
2602 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2603 (long) read_register (8),
2604 (long) read_register (9),
2605 (long) read_register (10),
2606 (long) read_register (11),
2607 (long) read_register (12),
2608 (long) read_register (13),
2609 (long) read_register (14),
2610 (long) read_register (15));
2615 sh3e_show_regs (void)
2617 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2619 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2620 paddr (read_register (PC_REGNUM)),
2621 (long) read_register (tdep->SR_REGNUM),
2622 (long) read_register (tdep->PR_REGNUM),
2623 (long) read_register (MACH_REGNUM),
2624 (long) read_register (MACL_REGNUM));
2626 printf_filtered ("GBR=%08lx VBR=%08lx",
2627 (long) read_register (GBR_REGNUM),
2628 (long) read_register (VBR_REGNUM));
2629 printf_filtered (" SSR=%08lx SPC=%08lx",
2630 (long) read_register (tdep->SSR_REGNUM),
2631 (long) read_register (tdep->SPC_REGNUM));
2632 printf_filtered (" FPUL=%08lx FPSCR=%08lx",
2633 (long) read_register (tdep->FPUL_REGNUM),
2634 (long) read_register (tdep->FPSCR_REGNUM));
2636 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2637 (long) read_register (0),
2638 (long) read_register (1),
2639 (long) read_register (2),
2640 (long) read_register (3),
2641 (long) read_register (4),
2642 (long) read_register (5),
2643 (long) read_register (6),
2644 (long) read_register (7));
2645 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2646 (long) read_register (8),
2647 (long) read_register (9),
2648 (long) read_register (10),
2649 (long) read_register (11),
2650 (long) read_register (12),
2651 (long) read_register (13),
2652 (long) read_register (14),
2653 (long) read_register (15));
2655 printf_filtered (("FP0-FP7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
2656 (long) read_register (FP0_REGNUM + 0),
2657 (long) read_register (FP0_REGNUM + 1),
2658 (long) read_register (FP0_REGNUM + 2),
2659 (long) read_register (FP0_REGNUM + 3),
2660 (long) read_register (FP0_REGNUM + 4),
2661 (long) read_register (FP0_REGNUM + 5),
2662 (long) read_register (FP0_REGNUM + 6),
2663 (long) read_register (FP0_REGNUM + 7));
2664 printf_filtered (("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
2665 (long) read_register (FP0_REGNUM + 8),
2666 (long) read_register (FP0_REGNUM + 9),
2667 (long) read_register (FP0_REGNUM + 10),
2668 (long) read_register (FP0_REGNUM + 11),
2669 (long) read_register (FP0_REGNUM + 12),
2670 (long) read_register (FP0_REGNUM + 13),
2671 (long) read_register (FP0_REGNUM + 14),
2672 (long) read_register (FP0_REGNUM + 15));
2676 sh3_dsp_show_regs (void)
2678 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2680 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2681 paddr (read_register (PC_REGNUM)),
2682 (long) read_register (tdep->SR_REGNUM),
2683 (long) read_register (tdep->PR_REGNUM),
2684 (long) read_register (MACH_REGNUM),
2685 (long) read_register (MACL_REGNUM));
2687 printf_filtered ("GBR=%08lx VBR=%08lx",
2688 (long) read_register (GBR_REGNUM),
2689 (long) read_register (VBR_REGNUM));
2691 printf_filtered (" SSR=%08lx SPC=%08lx",
2692 (long) read_register (tdep->SSR_REGNUM),
2693 (long) read_register (tdep->SPC_REGNUM));
2695 printf_filtered (" DSR=%08lx",
2696 (long) read_register (tdep->DSR_REGNUM));
2698 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2699 (long) read_register (0),
2700 (long) read_register (1),
2701 (long) read_register (2),
2702 (long) read_register (3),
2703 (long) read_register (4),
2704 (long) read_register (5),
2705 (long) read_register (6),
2706 (long) read_register (7));
2707 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2708 (long) read_register (8),
2709 (long) read_register (9),
2710 (long) read_register (10),
2711 (long) read_register (11),
2712 (long) read_register (12),
2713 (long) read_register (13),
2714 (long) read_register (14),
2715 (long) read_register (15));
2717 printf_filtered ("A0G=%02lx A0=%08lx M0=%08lx X0=%08lx Y0=%08lx RS=%08lx MOD=%08lx\n",
2718 (long) read_register (tdep->A0G_REGNUM) & 0xff,
2719 (long) read_register (tdep->A0_REGNUM),
2720 (long) read_register (tdep->M0_REGNUM),
2721 (long) read_register (tdep->X0_REGNUM),
2722 (long) read_register (tdep->Y0_REGNUM),
2723 (long) read_register (tdep->RS_REGNUM),
2724 (long) read_register (tdep->MOD_REGNUM));
2725 printf_filtered ("A1G=%02lx A1=%08lx M1=%08lx X1=%08lx Y1=%08lx RE=%08lx\n",
2726 (long) read_register (tdep->A1G_REGNUM) & 0xff,
2727 (long) read_register (tdep->A1_REGNUM),
2728 (long) read_register (tdep->M1_REGNUM),
2729 (long) read_register (tdep->X1_REGNUM),
2730 (long) read_register (tdep->Y1_REGNUM),
2731 (long) read_register (tdep->RE_REGNUM));
2735 sh4_show_regs (void)
2737 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2739 int pr = read_register (tdep->FPSCR_REGNUM) & 0x80000;
2740 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2741 paddr (read_register (PC_REGNUM)),
2742 (long) read_register (tdep->SR_REGNUM),
2743 (long) read_register (tdep->PR_REGNUM),
2744 (long) read_register (MACH_REGNUM),
2745 (long) read_register (MACL_REGNUM));
2747 printf_filtered ("GBR=%08lx VBR=%08lx",
2748 (long) read_register (GBR_REGNUM),
2749 (long) read_register (VBR_REGNUM));
2750 printf_filtered (" SSR=%08lx SPC=%08lx",
2751 (long) read_register (tdep->SSR_REGNUM),
2752 (long) read_register (tdep->SPC_REGNUM));
2753 printf_filtered (" FPUL=%08lx FPSCR=%08lx",
2754 (long) read_register (tdep->FPUL_REGNUM),
2755 (long) read_register (tdep->FPSCR_REGNUM));
2757 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2758 (long) read_register (0),
2759 (long) read_register (1),
2760 (long) read_register (2),
2761 (long) read_register (3),
2762 (long) read_register (4),
2763 (long) read_register (5),
2764 (long) read_register (6),
2765 (long) read_register (7));
2766 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2767 (long) read_register (8),
2768 (long) read_register (9),
2769 (long) read_register (10),
2770 (long) read_register (11),
2771 (long) read_register (12),
2772 (long) read_register (13),
2773 (long) read_register (14),
2774 (long) read_register (15));
2776 printf_filtered ((pr
2777 ? "DR0-DR6 %08lx%08lx %08lx%08lx %08lx%08lx %08lx%08lx\n"
2778 : "FP0-FP7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
2779 (long) read_register (FP0_REGNUM + 0),
2780 (long) read_register (FP0_REGNUM + 1),
2781 (long) read_register (FP0_REGNUM + 2),
2782 (long) read_register (FP0_REGNUM + 3),
2783 (long) read_register (FP0_REGNUM + 4),
2784 (long) read_register (FP0_REGNUM + 5),
2785 (long) read_register (FP0_REGNUM + 6),
2786 (long) read_register (FP0_REGNUM + 7));
2787 printf_filtered ((pr
2788 ? "DR8-DR14 %08lx%08lx %08lx%08lx %08lx%08lx %08lx%08lx\n"
2789 : "FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
2790 (long) read_register (FP0_REGNUM + 8),
2791 (long) read_register (FP0_REGNUM + 9),
2792 (long) read_register (FP0_REGNUM + 10),
2793 (long) read_register (FP0_REGNUM + 11),
2794 (long) read_register (FP0_REGNUM + 12),
2795 (long) read_register (FP0_REGNUM + 13),
2796 (long) read_register (FP0_REGNUM + 14),
2797 (long) read_register (FP0_REGNUM + 15));
2801 sh_dsp_show_regs (void)
2803 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2805 printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
2806 paddr (read_register (PC_REGNUM)),
2807 (long) read_register (tdep->SR_REGNUM),
2808 (long) read_register (tdep->PR_REGNUM),
2809 (long) read_register (MACH_REGNUM),
2810 (long) read_register (MACL_REGNUM));
2812 printf_filtered ("GBR=%08lx VBR=%08lx",
2813 (long) read_register (GBR_REGNUM),
2814 (long) read_register (VBR_REGNUM));
2816 printf_filtered (" DSR=%08lx",
2817 (long) read_register (tdep->DSR_REGNUM));
2819 printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2820 (long) read_register (0),
2821 (long) read_register (1),
2822 (long) read_register (2),
2823 (long) read_register (3),
2824 (long) read_register (4),
2825 (long) read_register (5),
2826 (long) read_register (6),
2827 (long) read_register (7));
2828 printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2829 (long) read_register (8),
2830 (long) read_register (9),
2831 (long) read_register (10),
2832 (long) read_register (11),
2833 (long) read_register (12),
2834 (long) read_register (13),
2835 (long) read_register (14),
2836 (long) read_register (15));
2838 printf_filtered ("A0G=%02lx A0=%08lx M0=%08lx X0=%08lx Y0=%08lx RS=%08lx MOD=%08lx\n",
2839 (long) read_register (tdep->A0G_REGNUM) & 0xff,
2840 (long) read_register (tdep->A0_REGNUM),
2841 (long) read_register (tdep->M0_REGNUM),
2842 (long) read_register (tdep->X0_REGNUM),
2843 (long) read_register (tdep->Y0_REGNUM),
2844 (long) read_register (tdep->RS_REGNUM),
2845 (long) read_register (tdep->MOD_REGNUM));
2846 printf_filtered ("A1G=%02lx A1=%08lx M1=%08lx X1=%08lx Y1=%08lx RE=%08lx\n",
2847 (long) read_register (tdep->A1G_REGNUM) & 0xff,
2848 (long) read_register (tdep->A1_REGNUM),
2849 (long) read_register (tdep->M1_REGNUM),
2850 (long) read_register (tdep->X1_REGNUM),
2851 (long) read_register (tdep->Y1_REGNUM),
2852 (long) read_register (tdep->RE_REGNUM));
2856 sh64_show_media_regs (void)
2859 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2861 printf_filtered ("PC=%s SR=%016llx \n",
2862 paddr (read_register (PC_REGNUM)),
2863 (long long) read_register (tdep->SR_REGNUM));
2865 printf_filtered ("SSR=%016llx SPC=%016llx \n",
2866 (long long) read_register (tdep->SSR_REGNUM),
2867 (long long) read_register (tdep->SPC_REGNUM));
2868 printf_filtered ("FPSCR=%016lx\n ",
2869 (long) read_register (tdep->FPSCR_REGNUM));
2871 for (i = 0; i < 64; i = i + 4)
2872 printf_filtered ("\nR%d-R%d %016llx %016llx %016llx %016llx\n",
2874 (long long) read_register (i + 0),
2875 (long long) read_register (i + 1),
2876 (long long) read_register (i + 2),
2877 (long long) read_register (i + 3));
2879 printf_filtered ("\n");
2881 for (i = 0; i < 64; i = i + 8)
2882 printf_filtered ("FR%d-FR%d %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2884 (long) read_register (FP0_REGNUM + i + 0),
2885 (long) read_register (FP0_REGNUM + i + 1),
2886 (long) read_register (FP0_REGNUM + i + 2),
2887 (long) read_register (FP0_REGNUM + i + 3),
2888 (long) read_register (FP0_REGNUM + i + 4),
2889 (long) read_register (FP0_REGNUM + i + 5),
2890 (long) read_register (FP0_REGNUM + i + 6),
2891 (long) read_register (FP0_REGNUM + i + 7));
2895 sh64_show_compact_regs (void)
2898 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2900 printf_filtered ("PC=%s \n",
2901 paddr (read_register (tdep->PC_C_REGNUM)));
2903 printf_filtered ("GBR=%08lx MACH=%08lx MACL=%08lx PR=%08lx T=%08lx\n",
2904 (long) read_register (tdep->GBR_C_REGNUM),
2905 (long) read_register (tdep->MACH_C_REGNUM),
2906 (long) read_register (tdep->MACL_C_REGNUM),
2907 (long) read_register (tdep->PR_C_REGNUM),
2908 (long) read_register (tdep->T_C_REGNUM));
2909 printf_filtered ("FPSCR=%08lx FPUL=%08lx\n",
2910 (long) read_register (tdep->FPSCR_REGNUM),
2911 (long) read_register (tdep->FPUL_REGNUM));
2913 for (i = 0; i < 16; i = i + 4)
2914 printf_filtered ("\nR%d-R%d %08lx %08lx %08lx %08lx\n",
2916 (long) read_register (i + 0),
2917 (long) read_register (i + 1),
2918 (long) read_register (i + 2),
2919 (long) read_register (i + 3));
2921 printf_filtered ("\n");
2923 for (i = 0; i < 16; i = i + 8)
2924 printf_filtered ("FR%d-FR%d %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
2926 (long) read_register (FP0_REGNUM + i + 0),
2927 (long) read_register (FP0_REGNUM + i + 1),
2928 (long) read_register (FP0_REGNUM + i + 2),
2929 (long) read_register (FP0_REGNUM + i + 3),
2930 (long) read_register (FP0_REGNUM + i + 4),
2931 (long) read_register (FP0_REGNUM + i + 5),
2932 (long) read_register (FP0_REGNUM + i + 6),
2933 (long) read_register (FP0_REGNUM + i + 7));
2936 /*FIXME!!! This only shows the registers for shmedia, excluding the
2937 pseudo registers. */
2939 sh64_show_regs (void)
2941 if (pc_is_isa32 (get_frame_pc (deprecated_selected_frame)))
2942 sh64_show_media_regs ();
2944 sh64_show_compact_regs ();
2947 void sh_show_regs_command (char *args, int from_tty)
2953 /* Index within `registers' of the first byte of the space for
2956 sh_default_register_byte (int reg_nr)
2958 return (reg_nr * 4);
2962 sh_sh4_register_byte (int reg_nr)
2964 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
2966 if (reg_nr >= tdep->DR0_REGNUM
2967 && reg_nr <= tdep->DR_LAST_REGNUM)
2968 return (dr_reg_base_num (reg_nr) * 4);
2969 else if (reg_nr >= tdep->FV0_REGNUM
2970 && reg_nr <= tdep->FV_LAST_REGNUM)
2971 return (fv_reg_base_num (reg_nr) * 4);
2973 return (reg_nr * 4);
2978 SH MEDIA MODE (ISA 32)
2979 general registers (64-bit) 0-63
2980 0 r0, r1, r2, r3, r4, r5, r6, r7,
2981 64 r8, r9, r10, r11, r12, r13, r14, r15,
2982 128 r16, r17, r18, r19, r20, r21, r22, r23,
2983 192 r24, r25, r26, r27, r28, r29, r30, r31,
2984 256 r32, r33, r34, r35, r36, r37, r38, r39,
2985 320 r40, r41, r42, r43, r44, r45, r46, r47,
2986 384 r48, r49, r50, r51, r52, r53, r54, r55,
2987 448 r56, r57, r58, r59, r60, r61, r62, r63,
2992 status reg., saved status reg., saved pc reg. (64-bit) 65-67
2995 target registers (64-bit) 68-75
2996 544 tr0, tr1, tr2, tr3, tr4, tr5, tr6, tr7,
2998 floating point state control register (32-bit) 76
3001 single precision floating point registers (32-bit) 77-140
3002 612 fr0, fr1, fr2, fr3, fr4, fr5, fr6, fr7,
3003 644 fr8, fr9, fr10, fr11, fr12, fr13, fr14, fr15,
3004 676 fr16, fr17, fr18, fr19, fr20, fr21, fr22, fr23,
3005 708 fr24, fr25, fr26, fr27, fr28, fr29, fr30, fr31,
3006 740 fr32, fr33, fr34, fr35, fr36, fr37, fr38, fr39,
3007 772 fr40, fr41, fr42, fr43, fr44, fr45, fr46, fr47,
3008 804 fr48, fr49, fr50, fr51, fr52, fr53, fr54, fr55,
3009 836 fr56, fr57, fr58, fr59, fr60, fr61, fr62, fr63,
3011 TOTAL SPACE FOR REGISTERS: 868 bytes
3013 From here on they are all pseudo registers: no memory allocated.
3014 REGISTER_BYTE returns the register byte for the base register.
3016 double precision registers (pseudo) 141-172
3017 dr0, dr2, dr4, dr6, dr8, dr10, dr12, dr14,
3018 dr16, dr18, dr20, dr22, dr24, dr26, dr28, dr30,
3019 dr32, dr34, dr36, dr38, dr40, dr42, dr44, dr46,
3020 dr48, dr50, dr52, dr54, dr56, dr58, dr60, dr62,
3022 floating point pairs (pseudo) 173-204
3023 fp0, fp2, fp4, fp6, fp8, fp10, fp12, fp14,
3024 fp16, fp18, fp20, fp22, fp24, fp26, fp28, fp30,
3025 fp32, fp34, fp36, fp38, fp40, fp42, fp44, fp46,
3026 fp48, fp50, fp52, fp54, fp56, fp58, fp60, fp62,
3028 floating point vectors (4 floating point regs) (pseudo) 205-220
3029 fv0, fv4, fv8, fv12, fv16, fv20, fv24, fv28,
3030 fv32, fv36, fv40, fv44, fv48, fv52, fv56, fv60,
3032 SH COMPACT MODE (ISA 16) (all pseudo) 221-272
3033 r0_c, r1_c, r2_c, r3_c, r4_c, r5_c, r6_c, r7_c,
3034 r8_c, r9_c, r10_c, r11_c, r12_c, r13_c, r14_c, r15_c,
3036 gbr_c, mach_c, macl_c, pr_c, t_c,
3038 fr0_c, fr1_c, fr2_c, fr3_c, fr4_c, fr5_c, fr6_c, fr7_c,
3039 fr8_c, fr9_c, fr10_c, fr11_c, fr12_c, fr13_c, fr14_c, fr15_c
3040 dr0_c, dr2_c, dr4_c, dr6_c, dr8_c, dr10_c, dr12_c, dr14_c
3041 fv0_c, fv4_c, fv8_c, fv12_c
3045 sh_sh64_register_byte (int reg_nr)
3047 int base_regnum = -1;
3048 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3050 /* If it is a pseudo register, get the number of the first floating
3051 point register that is part of it. */
3052 if (reg_nr >= tdep->DR0_REGNUM
3053 && reg_nr <= tdep->DR_LAST_REGNUM)
3054 base_regnum = dr_reg_base_num (reg_nr);
3056 else if (reg_nr >= tdep->FPP0_REGNUM
3057 && reg_nr <= tdep->FPP_LAST_REGNUM)
3058 base_regnum = fpp_reg_base_num (reg_nr);
3060 else if (reg_nr >= tdep->FV0_REGNUM
3061 && reg_nr <= tdep->FV_LAST_REGNUM)
3062 base_regnum = fv_reg_base_num (reg_nr);
3064 /* sh compact pseudo register. FPSCR is a pathological case, need to
3065 treat it as special. */
3066 else if ((reg_nr >= tdep->R0_C_REGNUM
3067 && reg_nr <= tdep->FV_LAST_C_REGNUM)
3068 && reg_nr != tdep->FPSCR_C_REGNUM)
3069 base_regnum = sh64_compact_reg_base_num (reg_nr);
3071 /* Now return the offset in bytes within the register cache. */
3072 /* sh media pseudo register, i.e. any of DR, FFP, FV registers. */
3073 if (reg_nr >= tdep->DR0_REGNUM
3074 && reg_nr <= tdep->FV_LAST_REGNUM)
3075 return (base_regnum - FP0_REGNUM + 1) * 4
3076 + (tdep->TR7_REGNUM + 1) * 8;
3078 /* sh compact pseudo register: general register */
3079 if ((reg_nr >= tdep->R0_C_REGNUM
3080 && reg_nr <= tdep->R_LAST_C_REGNUM))
3081 return (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
3082 ? base_regnum * 8 + 4
3085 /* sh compact pseudo register: */
3086 if (reg_nr == tdep->PC_C_REGNUM
3087 || reg_nr == tdep->GBR_C_REGNUM
3088 || reg_nr == tdep->MACL_C_REGNUM
3089 || reg_nr == tdep->PR_C_REGNUM)
3090 return (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
3091 ? base_regnum * 8 + 4
3094 if (reg_nr == tdep->MACH_C_REGNUM)
3095 return base_regnum * 8;
3097 if (reg_nr == tdep->T_C_REGNUM)
3098 return base_regnum * 8; /* FIXME??? how do we get bit 0? Do we have to? */
3100 /* sh compact pseudo register: floating point register */
3101 else if (reg_nr >=tdep->FP0_C_REGNUM
3102 && reg_nr <= tdep->FV_LAST_C_REGNUM)
3103 return (base_regnum - FP0_REGNUM) * 4
3104 + (tdep->TR7_REGNUM + 1) * 8 + 4;
3106 else if (reg_nr == tdep->FPSCR_C_REGNUM)
3107 /* This is complicated, for now return the beginning of the
3108 architectural FPSCR register. */
3109 return (tdep->TR7_REGNUM + 1) * 8;
3111 else if (reg_nr == tdep->FPUL_C_REGNUM)
3112 return ((base_regnum - FP0_REGNUM) * 4 +
3113 (tdep->TR7_REGNUM + 1) * 8 + 4);
3115 /* It is not a pseudo register. */
3116 /* It is a 64 bit register. */
3117 else if (reg_nr <= tdep->TR7_REGNUM)
3120 /* It is a 32 bit register. */
3122 if (reg_nr == tdep->FPSCR_REGNUM)
3123 return (tdep->FPSCR_REGNUM * 8);
3125 /* It is floating point 32-bit register */
3127 return ((tdep->TR7_REGNUM + 1) * 8
3128 + (reg_nr - FP0_REGNUM + 1) * 4);
3131 /* Number of bytes of storage in the actual machine representation for
3134 sh_default_register_raw_size (int reg_nr)
3140 sh_sh4_register_raw_size (int reg_nr)
3142 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3144 if (reg_nr >= tdep->DR0_REGNUM
3145 && reg_nr <= tdep->DR_LAST_REGNUM)
3147 else if (reg_nr >= tdep->FV0_REGNUM
3148 && reg_nr <= tdep->FV_LAST_REGNUM)
3155 sh_sh64_register_raw_size (int reg_nr)
3157 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3159 if ((reg_nr >= tdep->DR0_REGNUM
3160 && reg_nr <= tdep->DR_LAST_REGNUM)
3161 || (reg_nr >= tdep->FPP0_REGNUM
3162 && reg_nr <= tdep->FPP_LAST_REGNUM)
3163 || (reg_nr >= tdep->DR0_C_REGNUM
3164 && reg_nr <= tdep->DR_LAST_C_REGNUM)
3165 || (reg_nr <= tdep->TR7_REGNUM))
3168 else if ((reg_nr >= tdep->FV0_REGNUM
3169 && reg_nr <= tdep->FV_LAST_REGNUM)
3170 || (reg_nr >= tdep->FV0_C_REGNUM
3171 && reg_nr <= tdep->FV_LAST_C_REGNUM))
3174 else /* this covers also the 32-bit SH compact registers. */
3178 /* Number of bytes of storage in the program's representation
3181 sh_register_virtual_size (int reg_nr)
3188 sh_sh64_register_virtual_size (int reg_nr)
3190 if (reg_nr >= FP0_REGNUM
3191 && reg_nr <= gdbarch_tdep (current_gdbarch)->FP_LAST_REGNUM)
3197 /* Return the GDB type object for the "standard" data type
3198 of data in register N. */
3199 static struct type *
3200 sh_sh3e_register_virtual_type (int reg_nr)
3202 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3204 if ((reg_nr >= FP0_REGNUM
3205 && (reg_nr <= tdep->FP_LAST_REGNUM))
3206 || (reg_nr == tdep->FPUL_REGNUM))
3207 return builtin_type_float;
3209 return builtin_type_int;
3212 static struct type *
3213 sh_sh4_build_float_register_type (int high)
3217 temp = create_range_type (NULL, builtin_type_int, 0, high);
3218 return create_array_type (NULL, builtin_type_float, temp);
3221 static struct type *
3222 sh_sh4_register_virtual_type (int reg_nr)
3224 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3226 if ((reg_nr >= FP0_REGNUM
3227 && (reg_nr <= tdep->FP_LAST_REGNUM))
3228 || (reg_nr == tdep->FPUL_REGNUM))
3229 return builtin_type_float;
3230 else if (reg_nr >= tdep->DR0_REGNUM
3231 && reg_nr <= tdep->DR_LAST_REGNUM)
3232 return builtin_type_double;
3233 else if (reg_nr >= tdep->FV0_REGNUM
3234 && reg_nr <= tdep->FV_LAST_REGNUM)
3235 return sh_sh4_build_float_register_type (3);
3237 return builtin_type_int;
3240 static struct type *
3241 sh_sh64_register_virtual_type (int reg_nr)
3243 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3245 if ((reg_nr >= FP0_REGNUM
3246 && reg_nr <= tdep->FP_LAST_REGNUM)
3247 || (reg_nr >= tdep->FP0_C_REGNUM
3248 && reg_nr <= tdep->FP_LAST_C_REGNUM))
3249 return builtin_type_float;
3250 else if ((reg_nr >= tdep->DR0_REGNUM
3251 && reg_nr <= tdep->DR_LAST_REGNUM)
3252 || (reg_nr >= tdep->DR0_C_REGNUM
3253 && reg_nr <= tdep->DR_LAST_C_REGNUM))
3254 return builtin_type_double;
3255 else if (reg_nr >= tdep->FPP0_REGNUM
3256 && reg_nr <= tdep->FPP_LAST_REGNUM)
3257 return sh_sh4_build_float_register_type (1);
3258 else if ((reg_nr >= tdep->FV0_REGNUM
3259 && reg_nr <= tdep->FV_LAST_REGNUM)
3260 ||(reg_nr >= tdep->FV0_C_REGNUM
3261 && reg_nr <= tdep->FV_LAST_C_REGNUM))
3262 return sh_sh4_build_float_register_type (3);
3263 else if (reg_nr == tdep->FPSCR_REGNUM)
3264 return builtin_type_int;
3265 else if (reg_nr >= tdep->R0_C_REGNUM
3266 && reg_nr < tdep->FP0_C_REGNUM)
3267 return builtin_type_int;
3269 return builtin_type_long_long;
3272 static struct type *
3273 sh_default_register_virtual_type (int reg_nr)
3275 return builtin_type_int;
3278 /* On the sh4, the DRi pseudo registers are problematic if the target
3279 is little endian. When the user writes one of those registers, for
3280 instance with 'ser var $dr0=1', we want the double to be stored
3282 fr0 = 0x00 0x00 0x00 0x00 0x00 0xf0 0x3f
3283 fr1 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
3285 This corresponds to little endian byte order & big endian word
3286 order. However if we let gdb write the register w/o conversion, it
3287 will write fr0 and fr1 this way:
3288 fr0 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
3289 fr1 = 0x00 0x00 0x00 0x00 0x00 0xf0 0x3f
3290 because it will consider fr0 and fr1 as a single LE stretch of memory.
3292 To achieve what we want we must force gdb to store things in
3293 floatformat_ieee_double_littlebyte_bigword (which is defined in
3294 include/floatformat.h and libiberty/floatformat.c.
3296 In case the target is big endian, there is no problem, the
3297 raw bytes will look like:
3298 fr0 = 0x3f 0xf0 0x00 0x00 0x00 0x00 0x00
3299 fr1 = 0x00 0x00 0x00 0x00 0x00 0x00 0x00
3301 The other pseudo registers (the FVs) also don't pose a problem
3302 because they are stored as 4 individual FP elements. */
3305 sh_sh4_register_convert_to_virtual (int regnum, struct type *type,
3306 char *from, char *to)
3308 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3310 if (regnum >= tdep->DR0_REGNUM
3311 && regnum <= tdep->DR_LAST_REGNUM)
3314 floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword, from, &val);
3315 store_floating (to, TYPE_LENGTH (type), val);
3318 error ("sh_register_convert_to_virtual called with non DR register number");
3322 sh_sh64_register_convert_to_virtual (int regnum, struct type *type,
3323 char *from, char *to)
3325 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3327 if (TARGET_BYTE_ORDER != BFD_ENDIAN_LITTLE)
3329 /* It is a no-op. */
3330 memcpy (to, from, REGISTER_RAW_SIZE (regnum));
3334 if ((regnum >= tdep->DR0_REGNUM
3335 && regnum <= tdep->DR_LAST_REGNUM)
3336 || (regnum >= tdep->DR0_C_REGNUM
3337 && regnum <= tdep->DR_LAST_C_REGNUM))
3340 floatformat_to_doublest (&floatformat_ieee_double_littlebyte_bigword, from, &val);
3341 store_floating(to, TYPE_LENGTH(type), val);
3344 error("sh_register_convert_to_virtual called with non DR register number");
3348 sh_sh4_register_convert_to_raw (struct type *type, int regnum,
3349 const void *from, void *to)
3351 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3353 if (regnum >= tdep->DR0_REGNUM
3354 && regnum <= tdep->DR_LAST_REGNUM)
3356 DOUBLEST val = extract_floating (from, TYPE_LENGTH(type));
3357 floatformat_from_doublest (&floatformat_ieee_double_littlebyte_bigword, &val, to);
3360 error("sh_register_convert_to_raw called with non DR register number");
3364 sh_sh64_register_convert_to_raw (struct type *type, int regnum,
3365 const void *from, void *to)
3367 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3369 if (TARGET_BYTE_ORDER != BFD_ENDIAN_LITTLE)
3371 /* It is a no-op. */
3372 memcpy (to, from, REGISTER_RAW_SIZE (regnum));
3376 if ((regnum >= tdep->DR0_REGNUM
3377 && regnum <= tdep->DR_LAST_REGNUM)
3378 || (regnum >= tdep->DR0_C_REGNUM
3379 && regnum <= tdep->DR_LAST_C_REGNUM))
3381 DOUBLEST val = extract_floating (from, TYPE_LENGTH(type));
3382 floatformat_from_doublest (&floatformat_ieee_double_littlebyte_bigword, &val, to);
3385 error("sh_register_convert_to_raw called with non DR register number");
3389 sh_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
3390 int reg_nr, void *buffer)
3392 int base_regnum, portion;
3393 char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
3394 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
3396 if (reg_nr >= tdep->DR0_REGNUM
3397 && reg_nr <= tdep->DR_LAST_REGNUM)
3399 base_regnum = dr_reg_base_num (reg_nr);
3401 /* Build the value in the provided buffer. */
3402 /* Read the real regs for which this one is an alias. */
3403 for (portion = 0; portion < 2; portion++)
3404 regcache_raw_read (regcache, base_regnum + portion,
3406 + REGISTER_RAW_SIZE (base_regnum) * portion));
3407 /* We must pay attention to the endiannes. */
3408 sh_sh4_register_convert_to_virtual (reg_nr,
3409 REGISTER_VIRTUAL_TYPE (reg_nr),
3410 temp_buffer, buffer);
3412 else if (reg_nr >= tdep->FV0_REGNUM
3413 && reg_nr <= tdep->FV_LAST_REGNUM)
3415 base_regnum = fv_reg_base_num (reg_nr);
3417 /* Read the real regs for which this one is an alias. */
3418 for (portion = 0; portion < 4; portion++)
3419 regcache_raw_read (regcache, base_regnum + portion,
3421 + REGISTER_RAW_SIZE (base_regnum) * portion));
3426 sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
3427 int reg_nr, void *buffer)
3432 char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
3433 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
3435 if (reg_nr >= tdep->DR0_REGNUM
3436 && reg_nr <= tdep->DR_LAST_REGNUM)
3438 base_regnum = dr_reg_base_num (reg_nr);
3440 /* Build the value in the provided buffer. */
3441 /* DR regs are double precision registers obtained by
3442 concatenating 2 single precision floating point registers. */
3443 for (portion = 0; portion < 2; portion++)
3444 regcache_raw_read (regcache, base_regnum + portion,
3446 + REGISTER_RAW_SIZE (base_regnum) * portion));
3448 /* We must pay attention to the endiannes. */
3449 sh_sh64_register_convert_to_virtual (reg_nr, REGISTER_VIRTUAL_TYPE (reg_nr),
3450 temp_buffer, buffer);
3454 else if (reg_nr >= tdep->FPP0_REGNUM
3455 && reg_nr <= tdep->FPP_LAST_REGNUM)
3457 base_regnum = fpp_reg_base_num (reg_nr);
3459 /* Build the value in the provided buffer. */
3460 /* FPP regs are pairs of single precision registers obtained by
3461 concatenating 2 single precision floating point registers. */
3462 for (portion = 0; portion < 2; portion++)
3463 regcache_raw_read (regcache, base_regnum + portion,
3465 + REGISTER_RAW_SIZE (base_regnum) * portion));
3468 else if (reg_nr >= tdep->FV0_REGNUM
3469 && reg_nr <= tdep->FV_LAST_REGNUM)
3471 base_regnum = fv_reg_base_num (reg_nr);
3473 /* Build the value in the provided buffer. */
3474 /* FV regs are vectors of single precision registers obtained by
3475 concatenating 4 single precision floating point registers. */
3476 for (portion = 0; portion < 4; portion++)
3477 regcache_raw_read (regcache, base_regnum + portion,
3479 + REGISTER_RAW_SIZE (base_regnum) * portion));
3482 /* sh compact pseudo registers. 1-to-1 with a shmedia register */
3483 else if (reg_nr >= tdep->R0_C_REGNUM
3484 && reg_nr <= tdep->T_C_REGNUM)
3486 base_regnum = sh64_compact_reg_base_num (reg_nr);
3488 /* Build the value in the provided buffer. */
3489 regcache_raw_read (regcache, base_regnum, temp_buffer);
3490 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
3492 memcpy (buffer, temp_buffer + offset, 4); /* get LOWER 32 bits only????*/
3495 else if (reg_nr >= tdep->FP0_C_REGNUM
3496 && reg_nr <= tdep->FP_LAST_C_REGNUM)
3498 base_regnum = sh64_compact_reg_base_num (reg_nr);
3500 /* Build the value in the provided buffer. */
3501 /* Floating point registers map 1-1 to the media fp regs,
3502 they have the same size and endienness. */
3503 regcache_raw_read (regcache, base_regnum, buffer);
3506 else if (reg_nr >= tdep->DR0_C_REGNUM
3507 && reg_nr <= tdep->DR_LAST_C_REGNUM)
3509 base_regnum = sh64_compact_reg_base_num (reg_nr);
3511 /* DR_C regs are double precision registers obtained by
3512 concatenating 2 single precision floating point registers. */
3513 for (portion = 0; portion < 2; portion++)
3514 regcache_raw_read (regcache, base_regnum + portion,
3516 + REGISTER_RAW_SIZE (base_regnum) * portion));
3518 /* We must pay attention to the endiannes. */
3519 sh_sh64_register_convert_to_virtual (reg_nr, REGISTER_VIRTUAL_TYPE (reg_nr),
3520 temp_buffer, buffer);
3523 else if (reg_nr >= tdep->FV0_C_REGNUM
3524 && reg_nr <= tdep->FV_LAST_C_REGNUM)
3526 base_regnum = sh64_compact_reg_base_num (reg_nr);
3528 /* Build the value in the provided buffer. */
3529 /* FV_C regs are vectors of single precision registers obtained by
3530 concatenating 4 single precision floating point registers. */
3531 for (portion = 0; portion < 4; portion++)
3532 regcache_raw_read (regcache, base_regnum + portion,
3534 + REGISTER_RAW_SIZE (base_regnum) * portion));
3537 else if (reg_nr == tdep->FPSCR_C_REGNUM)
3539 int fpscr_base_regnum;
3541 unsigned int fpscr_value;
3542 unsigned int sr_value;
3543 unsigned int fpscr_c_value;
3544 unsigned int fpscr_c_part1_value;
3545 unsigned int fpscr_c_part2_value;
3547 fpscr_base_regnum = tdep->FPSCR_REGNUM;
3548 sr_base_regnum = tdep->SR_REGNUM;
3550 /* Build the value in the provided buffer. */
3551 /* FPSCR_C is a very weird register that contains sparse bits
3552 from the FPSCR and the SR architectural registers.
3559 2-17 Bit 2-18 of FPSCR
3560 18-20 Bits 12,13,14 of SR
3564 /* Get FPSCR into a local buffer */
3565 regcache_raw_read (regcache, fpscr_base_regnum, temp_buffer);
3566 /* Get value as an int. */
3567 fpscr_value = extract_unsigned_integer (temp_buffer, 4);
3568 /* Get SR into a local buffer */
3569 regcache_raw_read (regcache, sr_base_regnum, temp_buffer);
3570 /* Get value as an int. */
3571 sr_value = extract_unsigned_integer (temp_buffer, 4);
3572 /* Build the new value. */
3573 fpscr_c_part1_value = fpscr_value & 0x3fffd;
3574 fpscr_c_part2_value = (sr_value & 0x7000) << 6;
3575 fpscr_c_value = fpscr_c_part1_value | fpscr_c_part2_value;
3576 /* Store that in out buffer!!! */
3577 store_unsigned_integer (buffer, 4, fpscr_c_value);
3578 /* FIXME There is surely an endianness gotcha here. */
3581 else if (reg_nr == tdep->FPUL_C_REGNUM)
3583 base_regnum = sh64_compact_reg_base_num (reg_nr);
3585 /* FPUL_C register is floating point register 32,
3586 same size, same endianness. */
3587 regcache_raw_read (regcache, base_regnum, buffer);
3592 sh_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
3593 int reg_nr, const void *buffer)
3595 int base_regnum, portion;
3596 char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
3597 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
3599 if (reg_nr >= tdep->DR0_REGNUM
3600 && reg_nr <= tdep->DR_LAST_REGNUM)
3602 base_regnum = dr_reg_base_num (reg_nr);
3604 /* We must pay attention to the endiannes. */
3605 sh_sh4_register_convert_to_raw (REGISTER_VIRTUAL_TYPE (reg_nr), reg_nr,
3606 buffer, temp_buffer);
3608 /* Write the real regs for which this one is an alias. */
3609 for (portion = 0; portion < 2; portion++)
3610 regcache_raw_write (regcache, base_regnum + portion,
3612 + REGISTER_RAW_SIZE (base_regnum) * portion));
3614 else if (reg_nr >= tdep->FV0_REGNUM
3615 && reg_nr <= tdep->FV_LAST_REGNUM)
3617 base_regnum = fv_reg_base_num (reg_nr);
3619 /* Write the real regs for which this one is an alias. */
3620 for (portion = 0; portion < 4; portion++)
3621 regcache_raw_write (regcache, base_regnum + portion,
3623 + REGISTER_RAW_SIZE (base_regnum) * portion));
3628 sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
3629 int reg_nr, const void *buffer)
3631 int base_regnum, portion;
3633 char *temp_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
3634 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
3636 if (reg_nr >= tdep->DR0_REGNUM
3637 && reg_nr <= tdep->DR_LAST_REGNUM)
3639 base_regnum = dr_reg_base_num (reg_nr);
3640 /* We must pay attention to the endiannes. */
3641 sh_sh64_register_convert_to_raw (REGISTER_VIRTUAL_TYPE (reg_nr), reg_nr,
3642 buffer, temp_buffer);
3645 /* Write the real regs for which this one is an alias. */
3646 for (portion = 0; portion < 2; portion++)
3647 regcache_raw_write (regcache, base_regnum + portion,
3649 + REGISTER_RAW_SIZE (base_regnum) * portion));
3652 else if (reg_nr >= tdep->FPP0_REGNUM
3653 && reg_nr <= tdep->FPP_LAST_REGNUM)
3655 base_regnum = fpp_reg_base_num (reg_nr);
3657 /* Write the real regs for which this one is an alias. */
3658 for (portion = 0; portion < 2; portion++)
3659 regcache_raw_write (regcache, base_regnum + portion,
3661 + REGISTER_RAW_SIZE (base_regnum) * portion));
3664 else if (reg_nr >= tdep->FV0_REGNUM
3665 && reg_nr <= tdep->FV_LAST_REGNUM)
3667 base_regnum = fv_reg_base_num (reg_nr);
3669 /* Write the real regs for which this one is an alias. */
3670 for (portion = 0; portion < 4; portion++)
3671 regcache_raw_write (regcache, base_regnum + portion,
3673 + REGISTER_RAW_SIZE (base_regnum) * portion));
3676 /* sh compact general pseudo registers. 1-to-1 with a shmedia
3677 register but only 4 bytes of it. */
3678 else if (reg_nr >= tdep->R0_C_REGNUM
3679 && reg_nr <= tdep->T_C_REGNUM)
3681 base_regnum = sh64_compact_reg_base_num (reg_nr);
3682 /* reg_nr is 32 bit here, and base_regnum is 64 bits. */
3683 if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
3687 /* Let's read the value of the base register into a temporary
3688 buffer, so that overwriting the last four bytes with the new
3689 value of the pseudo will leave the upper 4 bytes unchanged. */
3690 regcache_raw_read (regcache, base_regnum, temp_buffer);
3691 /* Write as an 8 byte quantity */
3692 memcpy (temp_buffer + offset, buffer, 4);
3693 regcache_raw_write (regcache, base_regnum, temp_buffer);
3696 /* sh floating point compact pseudo registers. 1-to-1 with a shmedia
3697 registers. Both are 4 bytes. */
3698 else if (reg_nr >= tdep->FP0_C_REGNUM
3699 && reg_nr <= tdep->FP_LAST_C_REGNUM)
3701 base_regnum = sh64_compact_reg_base_num (reg_nr);
3702 regcache_raw_write (regcache, base_regnum, buffer);
3705 else if (reg_nr >= tdep->DR0_C_REGNUM
3706 && reg_nr <= tdep->DR_LAST_C_REGNUM)
3708 base_regnum = sh64_compact_reg_base_num (reg_nr);
3709 for (portion = 0; portion < 2; portion++)
3711 /* We must pay attention to the endiannes. */
3712 sh_sh64_register_convert_to_raw (REGISTER_VIRTUAL_TYPE (reg_nr), reg_nr,
3713 buffer, temp_buffer);
3715 regcache_raw_write (regcache, base_regnum + portion,
3717 + REGISTER_RAW_SIZE (base_regnum) * portion));
3721 else if (reg_nr >= tdep->FV0_C_REGNUM
3722 && reg_nr <= tdep->FV_LAST_C_REGNUM)
3724 base_regnum = sh64_compact_reg_base_num (reg_nr);
3726 for (portion = 0; portion < 4; portion++)
3728 regcache_raw_write (regcache, base_regnum + portion,
3730 + REGISTER_RAW_SIZE (base_regnum) * portion));
3734 else if (reg_nr == tdep->FPSCR_C_REGNUM)
3736 int fpscr_base_regnum;
3738 unsigned int fpscr_value;
3739 unsigned int sr_value;
3740 unsigned int old_fpscr_value;
3741 unsigned int old_sr_value;
3742 unsigned int fpscr_c_value;
3743 unsigned int fpscr_mask;
3744 unsigned int sr_mask;
3746 fpscr_base_regnum = tdep->FPSCR_REGNUM;
3747 sr_base_regnum = tdep->SR_REGNUM;
3749 /* FPSCR_C is a very weird register that contains sparse bits
3750 from the FPSCR and the SR architectural registers.
3757 2-17 Bit 2-18 of FPSCR
3758 18-20 Bits 12,13,14 of SR
3762 /* Get value as an int. */
3763 fpscr_c_value = extract_unsigned_integer (buffer, 4);
3765 /* Build the new values. */
3766 fpscr_mask = 0x0003fffd;
3767 sr_mask = 0x001c0000;
3769 fpscr_value = fpscr_c_value & fpscr_mask;
3770 sr_value = (fpscr_value & sr_mask) >> 6;
3772 regcache_raw_read (regcache, fpscr_base_regnum, temp_buffer);
3773 old_fpscr_value = extract_unsigned_integer (temp_buffer, 4);
3774 old_fpscr_value &= 0xfffc0002;
3775 fpscr_value |= old_fpscr_value;
3776 store_unsigned_integer (temp_buffer, 4, fpscr_value);
3777 regcache_raw_write (regcache, fpscr_base_regnum, temp_buffer);
3779 regcache_raw_read (regcache, sr_base_regnum, temp_buffer);
3780 old_sr_value = extract_unsigned_integer (temp_buffer, 4);
3781 old_sr_value &= 0xffff8fff;
3782 sr_value |= old_sr_value;
3783 store_unsigned_integer (temp_buffer, 4, sr_value);
3784 regcache_raw_write (regcache, sr_base_regnum, temp_buffer);
3787 else if (reg_nr == tdep->FPUL_C_REGNUM)
3789 base_regnum = sh64_compact_reg_base_num (reg_nr);
3790 regcache_raw_write (regcache, base_regnum, buffer);
3794 /* Floating point vector of 4 float registers. */
3796 do_fv_register_info (int fv_regnum)
3798 int first_fp_reg_num = fv_reg_base_num (fv_regnum);
3799 printf_filtered ("fv%d\t0x%08x\t0x%08x\t0x%08x\t0x%08x\n",
3800 fv_regnum - gdbarch_tdep (current_gdbarch)->FV0_REGNUM,
3801 (int) read_register (first_fp_reg_num),
3802 (int) read_register (first_fp_reg_num + 1),
3803 (int) read_register (first_fp_reg_num + 2),
3804 (int) read_register (first_fp_reg_num + 3));
3807 /* Floating point vector of 4 float registers, compact mode. */
3809 do_fv_c_register_info (int fv_regnum)
3811 int first_fp_reg_num = sh64_compact_reg_base_num (fv_regnum);
3812 printf_filtered ("fv%d_c\t0x%08x\t0x%08x\t0x%08x\t0x%08x\n",
3813 fv_regnum - gdbarch_tdep (current_gdbarch)->FV0_C_REGNUM,
3814 (int) read_register (first_fp_reg_num),
3815 (int) read_register (first_fp_reg_num + 1),
3816 (int) read_register (first_fp_reg_num + 2),
3817 (int) read_register (first_fp_reg_num + 3));
3820 /* Pairs of single regs. The DR are instead double precision
3823 do_fpp_register_info (int fpp_regnum)
3825 int first_fp_reg_num = fpp_reg_base_num (fpp_regnum);
3827 printf_filtered ("fpp%d\t0x%08x\t0x%08x\n",
3828 fpp_regnum - gdbarch_tdep (current_gdbarch)->FPP0_REGNUM,
3829 (int) read_register (first_fp_reg_num),
3830 (int) read_register (first_fp_reg_num + 1));
3833 /* Double precision registers. */
3835 do_dr_register_info (int dr_regnum)
3837 int first_fp_reg_num = dr_reg_base_num (dr_regnum);
3839 printf_filtered ("dr%d\t0x%08x%08x\n",
3840 dr_regnum - gdbarch_tdep (current_gdbarch)->DR0_REGNUM,
3841 (int) read_register (first_fp_reg_num),
3842 (int) read_register (first_fp_reg_num + 1));
3845 /* Double precision registers, compact mode. */
3847 do_dr_c_register_info (int dr_regnum)
3849 int first_fp_reg_num = sh64_compact_reg_base_num (dr_regnum);
3851 printf_filtered ("dr%d_c\t0x%08x%08x\n",
3852 dr_regnum - gdbarch_tdep (current_gdbarch)->DR0_C_REGNUM,
3853 (int) read_register (first_fp_reg_num),
3854 (int) read_register (first_fp_reg_num +1));
3857 /* General register in compact mode. */
3859 do_r_c_register_info (int r_c_regnum)
3861 int regnum = sh64_compact_reg_base_num (r_c_regnum);
3863 printf_filtered ("r%d_c\t0x%08x\n",
3864 r_c_regnum - gdbarch_tdep (current_gdbarch)->R0_C_REGNUM,
3865 /*FIXME!!!*/ (int) read_register (regnum));
3868 /* FIXME:!! THIS SHOULD TAKE CARE OF GETTING THE RIGHT PORTION OF THE
3869 shmedia REGISTERS. */
3870 /* Control registers, compact mode. */
3872 do_cr_c_register_info (int cr_c_regnum)
3874 switch (cr_c_regnum)
3876 case 237: printf_filtered ("pc_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3878 case 238: printf_filtered ("gbr_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3880 case 239: printf_filtered ("mach_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3882 case 240: printf_filtered ("macl_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3884 case 241: printf_filtered ("pr_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3886 case 242: printf_filtered ("t_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3888 case 243: printf_filtered ("fpscr_c\t0x%08x\n", (int) read_register (cr_c_regnum));
3890 case 244: printf_filtered ("fpul_c\t0x%08x\n", (int)read_register (cr_c_regnum));
3896 sh_do_pseudo_register (int regnum)
3898 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3900 if (regnum < NUM_REGS || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
3901 internal_error (__FILE__, __LINE__,
3902 "Invalid pseudo register number %d\n", regnum);
3903 else if (regnum >= tdep->DR0_REGNUM
3904 && regnum < tdep->DR_LAST_REGNUM)
3905 do_dr_register_info (regnum);
3906 else if (regnum >= tdep->FV0_REGNUM
3907 && regnum <= tdep->FV_LAST_REGNUM)
3908 do_fv_register_info (regnum);
3912 sh_do_fp_register (int regnum)
3913 { /* do values for FP (float) regs */
3915 double flt; /* double extracted from raw hex data */
3919 /* Allocate space for the float. */
3920 raw_buffer = (char *) alloca (REGISTER_RAW_SIZE (FP0_REGNUM));
3922 /* Get the data in raw format. */
3923 if (!frame_register_read (deprecated_selected_frame, regnum, raw_buffer))
3924 error ("can't read register %d (%s)", regnum, REGISTER_NAME (regnum));
3926 /* Get the register as a number */
3927 flt = unpack_double (builtin_type_float, raw_buffer, &inv);
3929 /* Print the name and some spaces. */
3930 fputs_filtered (REGISTER_NAME (regnum), gdb_stdout);
3931 print_spaces_filtered (15 - strlen (REGISTER_NAME (regnum)), gdb_stdout);
3933 /* Print the value. */
3935 printf_filtered ("<invalid float>");
3937 printf_filtered ("%-10.9g", flt);
3939 /* Print the fp register as hex. */
3940 printf_filtered ("\t(raw 0x");
3941 for (j = 0; j < REGISTER_RAW_SIZE (regnum); j++)
3943 register int idx = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? j
3944 : REGISTER_RAW_SIZE (regnum) - 1 - j;
3945 printf_filtered ("%02x", (unsigned char) raw_buffer[idx]);
3947 printf_filtered (")");
3948 printf_filtered ("\n");
3952 sh64_do_pseudo_register (int regnum)
3954 /* All the sh64-compact mode registers are pseudo registers. */
3955 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
3957 if (regnum < NUM_REGS
3958 || regnum >= NUM_REGS + NUM_PSEUDO_REGS_SH_MEDIA + NUM_PSEUDO_REGS_SH_COMPACT)
3959 internal_error (__FILE__, __LINE__,
3960 "Invalid pseudo register number %d\n", regnum);
3962 else if ((regnum >= tdep->DR0_REGNUM
3963 && regnum <= tdep->DR_LAST_REGNUM))
3964 do_dr_register_info (regnum);
3966 else if ((regnum >= tdep->DR0_C_REGNUM
3967 && regnum <= tdep->DR_LAST_C_REGNUM))
3968 do_dr_c_register_info (regnum);
3970 else if ((regnum >= tdep->FV0_REGNUM
3971 && regnum <= tdep->FV_LAST_REGNUM))
3972 do_fv_register_info (regnum);
3974 else if ((regnum >= tdep->FV0_C_REGNUM
3975 && regnum <= tdep->FV_LAST_C_REGNUM))
3976 do_fv_c_register_info (regnum);
3978 else if (regnum >= tdep->FPP0_REGNUM
3979 && regnum <= tdep->FPP_LAST_REGNUM)
3980 do_fpp_register_info (regnum);
3982 else if (regnum >= tdep->R0_C_REGNUM
3983 && regnum <= tdep->R_LAST_C_REGNUM)
3984 do_r_c_register_info (regnum); /* FIXME, this function will not print the right format */
3986 else if (regnum >= tdep->FP0_C_REGNUM
3987 && regnum <= tdep->FP_LAST_C_REGNUM)
3988 sh_do_fp_register (regnum); /* this should work also for pseudoregs */
3990 else if (regnum >= tdep->PC_C_REGNUM
3991 && regnum <= tdep->FPUL_C_REGNUM)
3992 do_cr_c_register_info (regnum);
3997 sh_do_register (int regnum)
3999 char raw_buffer[MAX_REGISTER_RAW_SIZE];
4001 fputs_filtered (REGISTER_NAME (regnum), gdb_stdout);
4002 print_spaces_filtered (15 - strlen (REGISTER_NAME (regnum)), gdb_stdout);
4004 /* Get the data in raw format. */
4005 if (!frame_register_read (deprecated_selected_frame, regnum, raw_buffer))
4006 printf_filtered ("*value not available*\n");
4008 val_print (REGISTER_VIRTUAL_TYPE (regnum), raw_buffer, 0, 0,
4009 gdb_stdout, 'x', 1, 0, Val_pretty_default);
4010 printf_filtered ("\t");
4011 val_print (REGISTER_VIRTUAL_TYPE (regnum), raw_buffer, 0, 0,
4012 gdb_stdout, 0, 1, 0, Val_pretty_default);
4013 printf_filtered ("\n");
4017 sh_print_register (int regnum)
4019 if (regnum < 0 || regnum >= NUM_REGS + NUM_PSEUDO_REGS)
4020 internal_error (__FILE__, __LINE__,
4021 "Invalid register number %d\n", regnum);
4023 else if (regnum >= 0 && regnum < NUM_REGS)
4025 if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (regnum)) == TYPE_CODE_FLT)
4026 sh_do_fp_register (regnum); /* FP regs */
4028 sh_do_register (regnum); /* All other regs */
4031 else if (regnum < NUM_REGS + NUM_PSEUDO_REGS)
4032 do_pseudo_register (regnum);
4036 sh_do_registers_info (int regnum, int fpregs)
4038 if (regnum != -1) /* do one specified register */
4040 if (*(REGISTER_NAME (regnum)) == '\0')
4041 error ("Not a valid register for the current processor type");
4043 sh_print_register (regnum);
4046 /* do all (or most) registers */
4049 while (regnum < NUM_REGS)
4051 /* If the register name is empty, it is undefined for this
4052 processor, so don't display anything. */
4053 if (REGISTER_NAME (regnum) == NULL
4054 || *(REGISTER_NAME (regnum)) == '\0')
4060 if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (regnum)) == TYPE_CODE_FLT)
4064 /* true for "INFO ALL-REGISTERS" command */
4065 sh_do_fp_register (regnum); /* FP regs */
4069 regnum += (gdbarch_tdep (current_gdbarch)->FP_LAST_REGNUM - FP0_REGNUM); /* skip FP regs */
4073 sh_do_register (regnum); /* All other regs */
4079 while (regnum < NUM_REGS + NUM_PSEUDO_REGS)
4081 do_pseudo_register (regnum);
4088 sh_compact_do_registers_info (int regnum, int fpregs)
4090 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
4091 if (regnum != -1) /* do one specified register */
4093 if (*(REGISTER_NAME (regnum)) == '\0')
4094 error ("Not a valid register for the current processor type");
4096 if (regnum >= 0 && regnum < tdep->R0_C_REGNUM)
4097 error ("Not a valid register for the current processor mode.");
4099 sh_print_register (regnum);
4102 /* do all compact registers */
4104 regnum = tdep->R0_C_REGNUM;
4105 while (regnum < NUM_REGS + NUM_PSEUDO_REGS)
4107 do_pseudo_register (regnum);
4114 sh64_do_registers_info (int regnum, int fpregs)
4116 if (pc_is_isa32 (get_frame_pc (deprecated_selected_frame)))
4117 sh_do_registers_info (regnum, fpregs);
4119 sh_compact_do_registers_info (regnum, fpregs);
4122 #ifdef SVR4_SHARED_LIBS
4124 /* Fetch (and possibly build) an appropriate link_map_offsets structure
4125 for native i386 linux targets using the struct offsets defined in
4126 link.h (but without actual reference to that file).
4128 This makes it possible to access i386-linux shared libraries from
4129 a gdb that was not built on an i386-linux host (for cross debugging).
4132 struct link_map_offsets *
4133 sh_linux_svr4_fetch_link_map_offsets (void)
4135 static struct link_map_offsets lmo;
4136 static struct link_map_offsets *lmp = 0;
4142 lmo.r_debug_size = 8; /* 20 not actual size but all we need */
4144 lmo.r_map_offset = 4;
4147 lmo.link_map_size = 20; /* 552 not actual size but all we need */
4149 lmo.l_addr_offset = 0;
4150 lmo.l_addr_size = 4;
4152 lmo.l_name_offset = 4;
4153 lmo.l_name_size = 4;
4155 lmo.l_next_offset = 12;
4156 lmo.l_next_size = 4;
4158 lmo.l_prev_offset = 16;
4159 lmo.l_prev_size = 4;
4164 #endif /* SVR4_SHARED_LIBS */
4169 DSP_DSR_REGNUM = 24,
4181 DSP_MOD_REGNUM = 40,
4186 DSP_R0_BANK_REGNUM = 51,
4187 DSP_R7_BANK_REGNUM = DSP_R0_BANK_REGNUM + 7
4191 sh_dsp_register_sim_regno (int nr)
4193 if (legacy_register_sim_regno (nr) < 0)
4194 return legacy_register_sim_regno (nr);
4195 if (nr >= DSP_DSR_REGNUM && nr < DSP_Y1_REGNUM)
4196 return nr - DSP_DSR_REGNUM + SIM_SH_DSR_REGNUM;
4197 if (nr == DSP_MOD_REGNUM)
4198 return SIM_SH_MOD_REGNUM;
4199 if (nr == DSP_RS_REGNUM)
4200 return SIM_SH_RS_REGNUM;
4201 if (nr == DSP_RE_REGNUM)
4202 return SIM_SH_RE_REGNUM;
4203 if (nr >= DSP_R0_BANK_REGNUM && nr <= DSP_R7_BANK_REGNUM)
4204 return nr - DSP_R0_BANK_REGNUM + SIM_SH_R0_BANK_REGNUM;
4208 static gdbarch_init_ftype sh_gdbarch_init;
4210 static struct gdbarch *
4211 sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
4213 static LONGEST sh_call_dummy_words[] = {0};
4214 struct gdbarch *gdbarch;
4215 struct gdbarch_tdep *tdep;
4216 gdbarch_register_name_ftype *sh_register_name;
4217 gdbarch_deprecated_store_return_value_ftype *sh_store_return_value;
4218 gdbarch_register_virtual_type_ftype *sh_register_virtual_type;
4219 enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
4221 /* Try to determine the ABI of the object we are loading. */
4223 if (info.abfd != NULL)
4225 osabi = gdbarch_lookup_osabi (info.abfd);
4226 /* If we get "unknown" back, just leave it that way. */
4229 /* Find a candidate among the list of pre-declared architectures. */
4230 for (arches = gdbarch_list_lookup_by_info (arches, &info);
4232 arches = gdbarch_list_lookup_by_info (arches->next, &info))
4234 /* Make sure the ABI selection matches. */
4235 tdep = gdbarch_tdep (arches->gdbarch);
4236 if (tdep && tdep->osabi == osabi)
4237 return arches->gdbarch;
4240 /* None found, create a new architecture from the information
4242 tdep = XMALLOC (struct gdbarch_tdep);
4243 gdbarch = gdbarch_alloc (&info, tdep);
4245 /* NOTE: cagney/2002-12-06: This can be deleted when this arch is
4246 ready to unwind the PC first (see frame.c:get_prev_frame()). */
4247 set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
4249 tdep->osabi = osabi;
4251 /* Initialize the register numbers that are not common to all the
4252 variants to -1, if necessary thse will be overwritten in the case
4254 tdep->FPUL_REGNUM = -1;
4255 tdep->FPSCR_REGNUM = -1;
4256 tdep->PR_REGNUM = 17;
4257 tdep->SR_REGNUM = 22;
4258 tdep->DSR_REGNUM = -1;
4259 tdep->FP_LAST_REGNUM = -1;
4260 tdep->A0G_REGNUM = -1;
4261 tdep->A0_REGNUM = -1;
4262 tdep->A1G_REGNUM = -1;
4263 tdep->A1_REGNUM = -1;
4264 tdep->M0_REGNUM = -1;
4265 tdep->M1_REGNUM = -1;
4266 tdep->X0_REGNUM = -1;
4267 tdep->X1_REGNUM = -1;
4268 tdep->Y0_REGNUM = -1;
4269 tdep->Y1_REGNUM = -1;
4270 tdep->MOD_REGNUM = -1;
4271 tdep->RS_REGNUM = -1;
4272 tdep->RE_REGNUM = -1;
4273 tdep->SSR_REGNUM = -1;
4274 tdep->SPC_REGNUM = -1;
4275 tdep->DR0_REGNUM = -1;
4276 tdep->DR_LAST_REGNUM = -1;
4277 tdep->FV0_REGNUM = -1;
4278 tdep->FV_LAST_REGNUM = -1;
4279 tdep->ARG0_REGNUM = 4;
4280 tdep->ARGLAST_REGNUM = 7;
4281 tdep->RETURN_REGNUM = 0;
4282 tdep->FLOAT_ARGLAST_REGNUM = -1;
4284 tdep->sh_abi = SH_ABI_UNKNOWN;
4286 set_gdbarch_fp0_regnum (gdbarch, -1);
4287 set_gdbarch_num_pseudo_regs (gdbarch, 0);
4288 set_gdbarch_max_register_raw_size (gdbarch, 4);
4289 set_gdbarch_max_register_virtual_size (gdbarch, 4);
4290 set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4291 set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4292 set_gdbarch_num_regs (gdbarch, SH_DEFAULT_NUM_REGS);
4293 set_gdbarch_sp_regnum (gdbarch, 15);
4294 set_gdbarch_fp_regnum (gdbarch, 14);
4295 set_gdbarch_pc_regnum (gdbarch, 16);
4296 set_gdbarch_register_size (gdbarch, 4);
4297 set_gdbarch_register_bytes (gdbarch, SH_DEFAULT_NUM_REGS * 4);
4298 set_gdbarch_deprecated_do_registers_info (gdbarch, sh_do_registers_info);
4299 set_gdbarch_breakpoint_from_pc (gdbarch, sh_breakpoint_from_pc);
4300 set_gdbarch_frame_chain (gdbarch, sh_frame_chain);
4301 set_gdbarch_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
4302 set_gdbarch_init_extra_frame_info (gdbarch, sh_init_extra_frame_info);
4303 set_gdbarch_deprecated_extract_return_value (gdbarch, sh_extract_return_value);
4304 set_gdbarch_push_arguments (gdbarch, sh_push_arguments);
4305 set_gdbarch_store_struct_return (gdbarch, sh_store_struct_return);
4306 set_gdbarch_use_struct_convention (gdbarch, sh_use_struct_convention);
4307 set_gdbarch_deprecated_extract_struct_value_address (gdbarch, sh_extract_struct_value_address);
4308 set_gdbarch_pop_frame (gdbarch, sh_pop_frame);
4309 set_gdbarch_print_insn (gdbarch, gdb_print_insn_sh);
4310 set_gdbarch_register_sim_regno (gdbarch, legacy_register_sim_regno);
4311 skip_prologue_hard_way = sh_skip_prologue_hard_way;
4312 do_pseudo_register = sh_do_pseudo_register;
4314 switch (info.bfd_arch_info->mach)
4317 sh_register_name = sh_sh_register_name;
4318 sh_show_regs = sh_generic_show_regs;
4319 sh_store_return_value = sh_default_store_return_value;
4320 sh_register_virtual_type = sh_default_register_virtual_type;
4321 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4322 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4323 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4324 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4327 sh_register_name = sh_sh_register_name;
4328 sh_show_regs = sh_generic_show_regs;
4329 sh_store_return_value = sh_default_store_return_value;
4330 sh_register_virtual_type = sh_default_register_virtual_type;
4331 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4332 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4333 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4334 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4336 case bfd_mach_sh_dsp:
4337 sh_register_name = sh_sh_dsp_register_name;
4338 sh_show_regs = sh_dsp_show_regs;
4339 sh_store_return_value = sh_default_store_return_value;
4340 sh_register_virtual_type = sh_default_register_virtual_type;
4341 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4342 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4343 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4344 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4345 set_gdbarch_register_sim_regno (gdbarch, sh_dsp_register_sim_regno);
4346 tdep->DSR_REGNUM = 24;
4347 tdep->A0G_REGNUM = 25;
4348 tdep->A0_REGNUM = 26;
4349 tdep->A1G_REGNUM = 27;
4350 tdep->A1_REGNUM = 28;
4351 tdep->M0_REGNUM = 29;
4352 tdep->M1_REGNUM = 30;
4353 tdep->X0_REGNUM = 31;
4354 tdep->X1_REGNUM = 32;
4355 tdep->Y0_REGNUM = 33;
4356 tdep->Y1_REGNUM = 34;
4357 tdep->MOD_REGNUM = 40;
4358 tdep->RS_REGNUM = 43;
4359 tdep->RE_REGNUM = 44;
4362 sh_register_name = sh_sh3_register_name;
4363 sh_show_regs = sh3_show_regs;
4364 sh_store_return_value = sh_default_store_return_value;
4365 sh_register_virtual_type = sh_default_register_virtual_type;
4366 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4367 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4368 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4369 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4370 tdep->SSR_REGNUM = 41;
4371 tdep->SPC_REGNUM = 42;
4374 sh_register_name = sh_sh3e_register_name;
4375 sh_show_regs = sh3e_show_regs;
4376 sh_store_return_value = sh3e_sh4_store_return_value;
4377 sh_register_virtual_type = sh_sh3e_register_virtual_type;
4378 set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
4379 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4380 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4381 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4382 set_gdbarch_deprecated_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
4383 set_gdbarch_fp0_regnum (gdbarch, 25);
4384 tdep->FPUL_REGNUM = 23;
4385 tdep->FPSCR_REGNUM = 24;
4386 tdep->FP_LAST_REGNUM = 40;
4387 tdep->SSR_REGNUM = 41;
4388 tdep->SPC_REGNUM = 42;
4390 case bfd_mach_sh3_dsp:
4391 sh_register_name = sh_sh3_dsp_register_name;
4392 sh_show_regs = sh3_dsp_show_regs;
4393 sh_store_return_value = sh_default_store_return_value;
4394 sh_register_virtual_type = sh_default_register_virtual_type;
4395 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4396 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4397 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4398 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4399 tdep->DSR_REGNUM = 24;
4400 tdep->A0G_REGNUM = 25;
4401 tdep->A0_REGNUM = 26;
4402 tdep->A1G_REGNUM = 27;
4403 tdep->A1_REGNUM = 28;
4404 tdep->M0_REGNUM = 29;
4405 tdep->M1_REGNUM = 30;
4406 tdep->X0_REGNUM = 31;
4407 tdep->X1_REGNUM = 32;
4408 tdep->Y0_REGNUM = 33;
4409 tdep->Y1_REGNUM = 34;
4410 tdep->MOD_REGNUM = 40;
4411 tdep->RS_REGNUM = 43;
4412 tdep->RE_REGNUM = 44;
4413 tdep->SSR_REGNUM = 41;
4414 tdep->SPC_REGNUM = 42;
4417 sh_register_name = sh_sh4_register_name;
4418 sh_show_regs = sh4_show_regs;
4419 sh_store_return_value = sh3e_sh4_store_return_value;
4420 sh_register_virtual_type = sh_sh4_register_virtual_type;
4421 set_gdbarch_frame_init_saved_regs (gdbarch, sh_fp_frame_init_saved_regs);
4422 set_gdbarch_deprecated_extract_return_value (gdbarch, sh3e_sh4_extract_return_value);
4423 set_gdbarch_fp0_regnum (gdbarch, 25);
4424 set_gdbarch_register_raw_size (gdbarch, sh_sh4_register_raw_size);
4425 set_gdbarch_register_virtual_size (gdbarch, sh_sh4_register_raw_size);
4426 set_gdbarch_register_byte (gdbarch, sh_sh4_register_byte);
4427 set_gdbarch_num_pseudo_regs (gdbarch, 12);
4428 set_gdbarch_max_register_raw_size (gdbarch, 4 * 4);
4429 set_gdbarch_max_register_virtual_size (gdbarch, 4 * 4);
4430 set_gdbarch_pseudo_register_read (gdbarch, sh_pseudo_register_read);
4431 set_gdbarch_pseudo_register_write (gdbarch, sh_pseudo_register_write);
4432 tdep->FPUL_REGNUM = 23;
4433 tdep->FPSCR_REGNUM = 24;
4434 tdep->FP_LAST_REGNUM = 40;
4435 tdep->SSR_REGNUM = 41;
4436 tdep->SPC_REGNUM = 42;
4437 tdep->DR0_REGNUM = 59;
4438 tdep->DR_LAST_REGNUM = 66;
4439 tdep->FV0_REGNUM = 67;
4440 tdep->FV_LAST_REGNUM = 70;
4443 tdep->PR_REGNUM = 18;
4444 tdep->SR_REGNUM = 65;
4445 tdep->FPSCR_REGNUM = SIM_SH64_FPCSR_REGNUM;
4446 tdep->FP_LAST_REGNUM = SIM_SH64_FR0_REGNUM + SIM_SH64_NR_FP_REGS - 1;
4447 tdep->SSR_REGNUM = SIM_SH64_SSR_REGNUM;
4448 tdep->SPC_REGNUM = SIM_SH64_SPC_REGNUM;
4449 tdep->TR7_REGNUM = SIM_SH64_TR0_REGNUM + 7;
4450 tdep->FPP0_REGNUM = 173;
4451 tdep->FPP_LAST_REGNUM = 204;
4452 tdep->DR0_REGNUM = 141;
4453 tdep->DR_LAST_REGNUM = 172;
4454 tdep->FV0_REGNUM = 205;
4455 tdep->FV_LAST_REGNUM = 220;
4456 tdep->R0_C_REGNUM = 221;
4457 tdep->R_LAST_C_REGNUM = 236;
4458 tdep->PC_C_REGNUM = 237;
4459 tdep->GBR_C_REGNUM = 238;
4460 tdep->MACH_C_REGNUM = 239;
4461 tdep->MACL_C_REGNUM = 240;
4462 tdep->PR_C_REGNUM = 241;
4463 tdep->T_C_REGNUM = 242;
4464 tdep->FPSCR_C_REGNUM = 243;
4465 tdep->FPUL_C_REGNUM = 244;
4466 tdep->FP0_C_REGNUM = 245;
4467 tdep->FP_LAST_C_REGNUM = 260;
4468 tdep->DR0_C_REGNUM = 261;
4469 tdep->DR_LAST_C_REGNUM = 268;
4470 tdep->FV0_C_REGNUM = 269;
4471 tdep->FV_LAST_C_REGNUM = 272;
4472 tdep->ARG0_REGNUM = 2;
4473 tdep->ARGLAST_REGNUM = 9;
4474 tdep->RETURN_REGNUM = 2;
4475 tdep->FLOAT_ARGLAST_REGNUM = 11;
4477 set_gdbarch_num_pseudo_regs (gdbarch, NUM_PSEUDO_REGS_SH_MEDIA + NUM_PSEUDO_REGS_SH_COMPACT);
4478 set_gdbarch_fp0_regnum (gdbarch, SIM_SH64_FR0_REGNUM);
4479 set_gdbarch_pc_regnum (gdbarch, 64);
4481 /* Determine the ABI */
4482 if (bfd_get_arch_size (info.abfd) == 64)
4484 /* If the ABI is the 64-bit one, it can only be sh-media. */
4485 tdep->sh_abi = SH_ABI_64;
4486 set_gdbarch_ptr_bit (gdbarch, 8 * TARGET_CHAR_BIT);
4487 set_gdbarch_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
4491 /* If the ABI is the 32-bit one it could be either media or
4493 tdep->sh_abi = SH_ABI_32;
4494 set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4495 set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4498 /* the number of real registers is the same whether we are in
4499 ISA16(compact) or ISA32(media). */
4500 set_gdbarch_num_regs (gdbarch, SIM_SH64_NR_REGS);
4501 set_gdbarch_register_size (gdbarch, 8); /*????*/
4502 set_gdbarch_register_bytes (gdbarch,
4503 ((SIM_SH64_NR_FP_REGS + 1) * 4)
4504 + (SIM_SH64_NR_REGS - SIM_SH64_NR_FP_REGS -1) * 8);
4506 sh_register_name = sh_sh64_register_name;
4507 sh_show_regs = sh64_show_regs;
4508 sh_register_virtual_type = sh_sh64_register_virtual_type;
4509 sh_store_return_value = sh64_store_return_value;
4510 skip_prologue_hard_way = sh64_skip_prologue_hard_way;
4511 do_pseudo_register = sh64_do_pseudo_register;
4512 set_gdbarch_register_raw_size (gdbarch, sh_sh64_register_raw_size);
4513 set_gdbarch_register_virtual_size (gdbarch, sh_sh64_register_raw_size);
4514 set_gdbarch_register_byte (gdbarch, sh_sh64_register_byte);
4515 /* This seems awfully wrong!*/
4516 /*set_gdbarch_max_register_raw_size (gdbarch, 8);*/
4517 /* should include the size of the pseudo regs. */
4518 set_gdbarch_max_register_raw_size (gdbarch, 4 * 4);
4519 /* Or should that go in the virtual_size? */
4520 /*set_gdbarch_max_register_virtual_size (gdbarch, 8);*/
4521 set_gdbarch_max_register_virtual_size (gdbarch, 4 * 4);
4522 set_gdbarch_pseudo_register_read (gdbarch, sh64_pseudo_register_read);
4523 set_gdbarch_pseudo_register_write (gdbarch, sh64_pseudo_register_write);
4525 set_gdbarch_deprecated_do_registers_info (gdbarch, sh64_do_registers_info);
4526 set_gdbarch_frame_init_saved_regs (gdbarch, sh64_nofp_frame_init_saved_regs);
4527 set_gdbarch_breakpoint_from_pc (gdbarch, sh_sh64_breakpoint_from_pc);
4528 set_gdbarch_init_extra_frame_info (gdbarch, sh64_init_extra_frame_info);
4529 set_gdbarch_frame_chain (gdbarch, sh64_frame_chain);
4530 set_gdbarch_get_saved_register (gdbarch, sh64_get_saved_register);
4531 set_gdbarch_deprecated_extract_return_value (gdbarch, sh64_extract_return_value);
4532 set_gdbarch_push_arguments (gdbarch, sh64_push_arguments);
4533 /*set_gdbarch_store_struct_return (gdbarch, sh64_store_struct_return);*/
4534 set_gdbarch_deprecated_extract_struct_value_address (gdbarch, sh64_extract_struct_value_address);
4535 set_gdbarch_use_struct_convention (gdbarch, sh64_use_struct_convention);
4536 set_gdbarch_pop_frame (gdbarch, sh64_pop_frame);
4537 set_gdbarch_elf_make_msymbol_special (gdbarch,
4538 sh64_elf_make_msymbol_special);
4541 sh_register_name = sh_generic_register_name;
4542 sh_show_regs = sh_generic_show_regs;
4543 sh_store_return_value = sh_default_store_return_value;
4544 sh_register_virtual_type = sh_default_register_virtual_type;
4545 set_gdbarch_frame_init_saved_regs (gdbarch, sh_nofp_frame_init_saved_regs);
4546 set_gdbarch_register_raw_size (gdbarch, sh_default_register_raw_size);
4547 set_gdbarch_register_virtual_size (gdbarch, sh_default_register_raw_size);
4548 set_gdbarch_register_byte (gdbarch, sh_default_register_byte);
4552 set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
4553 set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
4554 set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
4555 set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
4556 set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
4558 set_gdbarch_register_name (gdbarch, sh_register_name);
4559 set_gdbarch_register_virtual_type (gdbarch, sh_register_virtual_type);
4561 set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
4562 set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4563 set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
4564 set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
4565 set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
4566 set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
4568 set_gdbarch_call_dummy_length (gdbarch, 0);
4569 set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
4570 set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1); /*???*/
4571 set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
4572 set_gdbarch_call_dummy_start_offset (gdbarch, 0);
4573 set_gdbarch_call_dummy_words (gdbarch, sh_call_dummy_words);
4574 set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (sh_call_dummy_words));
4575 set_gdbarch_call_dummy_p (gdbarch, 1);
4576 set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
4577 set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy);
4578 set_gdbarch_coerce_float_to_double (gdbarch,
4579 sh_coerce_float_to_double);
4581 set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
4582 set_gdbarch_push_return_address (gdbarch, sh_push_return_address);
4584 set_gdbarch_deprecated_store_return_value (gdbarch, sh_store_return_value);
4585 set_gdbarch_skip_prologue (gdbarch, sh_skip_prologue);
4586 set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
4587 set_gdbarch_decr_pc_after_break (gdbarch, 0);
4588 set_gdbarch_function_start_offset (gdbarch, 0);
4590 set_gdbarch_frame_args_skip (gdbarch, 0);
4591 set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);
4592 set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
4593 set_gdbarch_frame_saved_pc (gdbarch, sh_frame_saved_pc);
4594 set_gdbarch_saved_pc_after_call (gdbarch, sh_saved_pc_after_call);
4595 set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
4596 set_gdbarch_believe_pcc_promotion (gdbarch, 1);
4598 /* Hook in ABI-specific overrides, if they have been registered.
4600 FIXME: if the ABI is unknown, this is probably an embedded target,
4601 so we should not warn about this situation. */
4602 gdbarch_init_osabi (info, gdbarch, osabi);
4608 sh_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
4610 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
4615 fprintf_unfiltered (file, "sh_dump_tdep: OS ABI = %s\n",
4616 gdbarch_osabi_name (tdep->osabi));
4620 _initialize_sh_tdep (void)
4622 struct cmd_list_element *c;
4624 gdbarch_register (bfd_arch_sh, sh_gdbarch_init, sh_dump_tdep);
4626 add_com ("regs", class_vars, sh_show_regs_command, "Print all registers");