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c906108c
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1/* Target machine sub-parameters for SPARC, for GDB, the GNU debugger.
2 This is included by other tm-*.h files to define SPARC cpu-related info.
3 Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994
4 Free Software Foundation, Inc.
5 Contributed by Michael Tiemann (tiemann@mcc.com)
6
c5aa993b 7 This file is part of GDB.
c906108c 8
c5aa993b
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9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
c906108c 13
c5aa993b
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14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
c906108c 18
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19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
c906108c
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23
24#ifdef __STDC__
25struct frame_info;
26struct type;
27struct value;
28#endif
29
30#define TARGET_BYTE_ORDER BIG_ENDIAN
31
32/* Floating point is IEEE compatible. */
33#define IEEE_FLOAT
34
35/* If an argument is declared "register", Sun cc will keep it in a register,
36 never saving it onto the stack. So we better not believe the "p" symbol
37 descriptor stab. */
38
39#define USE_REGISTER_NOT_ARG
40
41/* When passing a structure to a function, Sun cc passes the address
42 not the structure itself. It (under SunOS4) creates two symbols,
43 which we need to combine to a LOC_REGPARM. Gcc version two (as of
44 1.92) behaves like sun cc. REG_STRUCT_HAS_ADDR is smart enough to
45 distinguish between Sun cc, gcc version 1 and gcc version 2. */
46
47#define REG_STRUCT_HAS_ADDR(gcc_p,type) (gcc_p != 1)
48
49/* Sun /bin/cc gets this right as of SunOS 4.1.x. We need to define
50 BELIEVE_PCC_PROMOTION to get this right now that the code which
51 detects gcc2_compiled. is broken. This loses for SunOS 4.0.x and
52 earlier. */
53
54#define BELIEVE_PCC_PROMOTION 1
55
56/* For acc, there's no need to correct LBRAC entries by guessing how
57 they should work. In fact, this is harmful because the LBRAC
58 entries now all appear at the end of the function, not intermixed
59 with the SLINE entries. n_opt_found detects acc for Solaris binaries;
60 function_stab_type detects acc for SunOS4 binaries.
61
62 For binary from SunOS4 /bin/cc, need to correct LBRAC's.
63
64 For gcc, like acc, don't correct. */
65
66#define SUN_FIXED_LBRAC_BUG \
67 (n_opt_found \
68 || function_stab_type == N_STSYM \
69 || function_stab_type == N_GSYM \
70 || processing_gcc_compilation)
71
72/* Do variables in the debug stabs occur after the N_LBRAC or before it?
73 acc: after, gcc: before, SunOS4 /bin/cc: before. */
74
75#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) \
76 (!(gcc_p) \
77 && (n_opt_found \
78 || function_stab_type == N_STSYM \
79 || function_stab_type == N_GSYM))
80
81/* Offset from address of function to start of its code.
82 Zero on most machines. */
83
84#define FUNCTION_START_OFFSET 0
85
86/* Advance PC across any function entry prologue instructions
87 to reach some "real" code. SKIP_PROLOGUE_FRAMELESS_P advances
88 the PC past some of the prologue, but stops as soon as it
89 knows that the function has a frame. Its result is equal
90 to its input PC if the function is frameless, unequal otherwise. */
91
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92#define SKIP_PROLOGUE(pc) (sparc_skip_prologue (pc, 0))
93#define SKIP_PROLOGUE_FRAMELESS_P(pc) (sparc_skip_prologue (pc, 1))
94extern CORE_ADDR sparc_skip_prologue PARAMS ((CORE_ADDR, int));
c906108c
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95
96/* Immediately after a function call, return the saved pc.
97 Can't go through the frames for this because on some machines
98 the new frame is not set up until the new function executes
99 some instructions. */
100
101/* On the Sun 4 under SunOS, the compile will leave a fake insn which
102 encodes the structure size being returned. If we detect such
103 a fake insn, step past it. */
104
105#define PC_ADJUST(pc) sparc_pc_adjust(pc)
106extern CORE_ADDR sparc_pc_adjust PARAMS ((CORE_ADDR));
107
108#define SAVED_PC_AFTER_CALL(frame) PC_ADJUST (read_register (RP_REGNUM))
109
110/* Stack grows downward. */
111
112#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
113
114/* Stack must be aligned on 64-bit boundaries when synthesizing
115 function calls. */
116
117#define STACK_ALIGN(ADDR) (((ADDR) + 7) & -8)
118
119/* Sequence of bytes for breakpoint instruction (ta 1). */
120
121#define BREAKPOINT {0x91, 0xd0, 0x20, 0x01}
122
123/* Amount PC must be decremented by after a breakpoint.
124 This is often the number of bytes in BREAKPOINT
125 but not always. */
126
127#define DECR_PC_AFTER_BREAK 0
128
129/* Say how long (ordinary) registers are. This is a piece of bogosity
130 used in push_word and a few other places; REGISTER_RAW_SIZE is the
131 real way to know how big a register is. */
132
133#define REGISTER_SIZE 4
134
135/* Number of machine registers */
136
137#define NUM_REGS 72
138
139/* Initializer for an array of names of registers.
140 There should be NUM_REGS strings in this initializer. */
141
142#define REGISTER_NAMES \
143{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
144 "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
145 "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
146 "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
147 \
148 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
149 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
150 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
151 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
152 \
153 "y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr" }
154
155/* Register numbers of various important registers.
156 Note that some of these values are "real" register numbers,
157 and correspond to the general registers of the machine,
158 and some are "phony" register numbers which are too large
159 to be actual register numbers as far as the user is concerned
160 but do serve to get the desired values when passed to read_register. */
161
c5aa993b 162#define G0_REGNUM 0 /* %g0 */
c906108c
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163#define G1_REGNUM 1 /* %g1 */
164#define O0_REGNUM 8 /* %o0 */
165#define SP_REGNUM 14 /* Contains address of top of stack, \
166 which is also the bottom of the frame. */
167#define RP_REGNUM 15 /* Contains return address value, *before* \
168 any windows get switched. */
169#define O7_REGNUM 15 /* Last local reg not saved on stack frame */
170#define L0_REGNUM 16 /* First local reg that's saved on stack frame
171 rather than in machine registers */
172#define I0_REGNUM 24 /* %i0 */
173#define FP_REGNUM 30 /* Contains address of executing stack frame */
174#define I7_REGNUM 31 /* Last local reg saved on stack frame */
175#define FP0_REGNUM 32 /* Floating point register 0 */
176#define Y_REGNUM 64 /* Temp register for multiplication, etc. */
177#define PS_REGNUM 65 /* Contains processor status */
178#define PS_FLAG_CARRY 0x100000 /* Carry bit in PS */
179#define WIM_REGNUM 66 /* Window Invalid Mask (not really supported) */
180#define TBR_REGNUM 67 /* Trap Base Register (not really supported) */
181#define PC_REGNUM 68 /* Contains program counter */
c5aa993b 182#define NPC_REGNUM 69 /* Contains next PC */
c906108c
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183#define FPS_REGNUM 70 /* Floating point status register */
184#define CPS_REGNUM 71 /* Coprocessor status register */
185
186/* Total amount of space needed to store our copies of the machine's
187 register state, the array `registers'. On the sparc, `registers'
188 contains the ins and locals, even though they are saved on the
189 stack rather than with the other registers, and this causes hair
190 and confusion in places like pop_frame. It might be
191 better to remove the ins and locals from `registers', make sure
192 that get_saved_register can get them from the stack (even in the
193 innermost frame), and make this the way to access them. For the
194 frame pointer we would do that via TARGET_READ_FP. On the other hand,
195 that is likely to be confusing or worse for flat frames. */
196
197#define REGISTER_BYTES (32*4+32*4+8*4)
198
199/* Index within `registers' of the first byte of the space for
200 register N. */
201/* ?? */
202#define REGISTER_BYTE(N) ((N)*4)
203
204/* We need to override GET_SAVED_REGISTER so that we can deal with the way
205 outs change into ins in different frames. HAVE_REGISTER_WINDOWS can't
206 deal with this case and also handle flat frames at the same time. */
207
7a292a7a
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208#ifdef __STDC__
209struct frame_info;
210enum lval_type;
211#endif
c5aa993b 212void sparc_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADDR * addrp, struct frame_info * frame, int regnum, enum lval_type * lvalp));
7a292a7a
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213#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
214 sparc_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
c906108c
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215
216/* Number of bytes of storage in the actual machine representation
217 for register N. */
218
219/* On the SPARC, all regs are 4 bytes. */
220
221#define REGISTER_RAW_SIZE(N) (4)
222
223/* Number of bytes of storage in the program's representation
224 for register N. */
225
226/* On the SPARC, all regs are 4 bytes. */
227
228#define REGISTER_VIRTUAL_SIZE(N) (4)
229
230/* Largest value REGISTER_RAW_SIZE can have. */
231
232#define MAX_REGISTER_RAW_SIZE 8
233
234/* Largest value REGISTER_VIRTUAL_SIZE can have. */
235
236#define MAX_REGISTER_VIRTUAL_SIZE 8
237
238/* Return the GDB type object for the "standard" data type
239 of data in register N. */
240
241#define REGISTER_VIRTUAL_TYPE(N) \
242 ((N) < 32 ? builtin_type_int : (N) < 64 ? builtin_type_float : \
243 builtin_type_int)
244
245/* Writing to %g0 is a noop (not an error or exception or anything like
246 that, however). */
247
248#define CANNOT_STORE_REGISTER(regno) ((regno) == G0_REGNUM)
249
250/* Store the address of the place in which to copy the structure the
251 subroutine will return. This is called from call_function_by_hand.
252 The ultimate mystery is, tho, what is the value "16"? */
253
254#define STORE_STRUCT_RETURN(ADDR, SP) \
255 { char val[4]; \
256 store_unsigned_integer (val, 4, (ADDR)); \
257 write_memory ((SP)+(16*4), val, 4); }
258
259/* Extract from an array REGBUF containing the (raw) register state
260 a function return value of type TYPE, and copy that, in virtual format,
261 into VALBUF. */
262
263#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
264 sparc_extract_return_value(TYPE, REGBUF, VALBUF)
265extern void
c5aa993b 266sparc_extract_return_value PARAMS ((struct type *, char[], char *));
c906108c
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267
268/* Write into appropriate registers a function return value
269 of type TYPE, given in virtual format. */
270#define STORE_RETURN_VALUE(TYPE,VALBUF) \
271 sparc_store_return_value(TYPE, VALBUF)
272extern void sparc_store_return_value PARAMS ((struct type *, char *));
273
274/* Extract from an array REGBUF containing the (raw) register state
275 the address in which a function should return its structure value,
276 as a CORE_ADDR (or an expression that can be used as one). */
277
278#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
279 (sparc_extract_struct_value_address (REGBUF))
280
281extern CORE_ADDR
c5aa993b 282 sparc_extract_struct_value_address PARAMS ((char[REGISTER_BYTES]));
c906108c 283\f
c5aa993b 284
c906108c
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285/* Describe the pointer in each stack frame to the previous stack frame
286 (its caller). */
287
288/* FRAME_CHAIN takes a frame's nominal address
289 and produces the frame's chain-pointer. */
290
291/* In the case of the Sun 4, the frame-chain's nominal address
292 is held in the frame pointer register.
293
294 On the Sun4, the frame (in %fp) is %sp for the previous frame.
295 From the previous frame's %sp, we can find the previous frame's
296 %fp: it is in the save area just above the previous frame's %sp.
297
298 If we are setting up an arbitrary frame, we'll need to know where
299 it ends. Hence the following. This part of the frame cache
300 structure should be checked before it is assumed that this frame's
301 bottom is in the stack pointer.
302
303 If there isn't a frame below this one, the bottom of this frame is
304 in the stack pointer.
305
306 If there is a frame below this one, and the frame pointers are
307 identical, it's a leaf frame and the bottoms are the same also.
308
309 Otherwise the bottom of this frame is the top of the next frame.
310
311 The bottom field is misnamed, since it might imply that memory from
312 bottom to frame contains this frame. That need not be true if
313 stack frames are allocated in different segments (e.g. some on a
314 stack, some on a heap in the data segment).
315
316 GCC 2.6 and later can generate ``flat register window'' code that
317 makes frames by explicitly saving those registers that need to be
318 saved. %i7 is used as the frame pointer, and the frame is laid out so
319 that flat and non-flat calls can be intermixed freely within a
320 program. Unfortunately for GDB, this means it must detect and record
321 the flatness of frames.
322
323 Since the prologue in a flat frame also tells us where fp and pc
324 have been stashed (the frame is of variable size, so their location
325 is not fixed), it's convenient to record them in the frame info. */
326
327#define EXTRA_FRAME_INFO \
328 CORE_ADDR bottom; \
329 int in_prologue; \
330 int flat; \
331 /* Following fields only relevant for flat frames. */ \
332 CORE_ADDR pc_addr; \
333 CORE_ADDR fp_addr; \
334 /* Add this to ->frame to get the value of the stack pointer at the */ \
335 /* time of the register saves. */ \
336 int sp_offset;
337
c5aa993b 338#define FRAME_INIT_SAVED_REGS(fp) /*no-op */
c906108c
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339
340#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \
341 sparc_init_extra_frame_info (fromleaf, fci)
c5aa993b 342extern void sparc_init_extra_frame_info PARAMS ((int, struct frame_info *));
c906108c
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343
344#define PRINT_EXTRA_FRAME_INFO(fi) \
345 { \
346 if ((fi) && (fi)->flat) \
347 printf_filtered (" flat, pc saved at 0x%x, fp saved at 0x%x\n", \
348 (fi)->pc_addr, (fi)->fp_addr); \
349 }
350
351#define FRAME_CHAIN(thisframe) (sparc_frame_chain (thisframe))
352extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *));
353
354/* INIT_EXTRA_FRAME_INFO needs the PC to detect flat frames. */
355
c5aa993b 356#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
c906108c
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357#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
358 (prev)->pc = ((fromleaf) ? SAVED_PC_AFTER_CALL ((prev)->next) : \
359 (prev)->next ? FRAME_SAVED_PC ((prev)->next) : read_pc ());
360
361/* Define other aspects of the stack frame. */
362
363/* A macro that tells us whether the function invocation represented
364 by FI does not have a frame on the stack associated with it. If it
365 does not, FRAMELESS is set to 1, else 0. */
392a587b
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366#define FRAMELESS_FUNCTION_INVOCATION(FI) \
367 (frameless_look_for_prologue(FI))
c906108c
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368
369/* The location of I0 w.r.t SP. This is actually dependent on how the system's
370 window overflow/underflow routines are written. Most vendors save the L regs
371 followed by the I regs (at the higher address). Some vendors get it wrong.
372 */
373
374#define FRAME_SAVED_L0 0
375#define FRAME_SAVED_I0 (8 * REGISTER_RAW_SIZE (L0_REGNUM))
376
377/* Where is the PC for a specific frame */
378
379#define FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME)
380extern CORE_ADDR sparc_frame_saved_pc PARAMS ((struct frame_info *));
381
382/* If the argument is on the stack, it will be here. */
383#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
384
385#define FRAME_STRUCT_ARGS_ADDRESS(fi) ((fi)->frame)
386
387#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
388
389/* Set VAL to the number of args passed to frame described by FI.
390 Can set VAL to -1, meaning no way to tell. */
391
392/* We can't tell how many args there are
393 now that the C compiler delays popping them. */
392a587b 394#define FRAME_NUM_ARGS(fi) (-1)
c906108c
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395
396/* Return number of bytes at start of arglist that are not really args. */
397
398#define FRAME_ARGS_SKIP 68
399\f
400/* Things needed for making the inferior call functions. */
401/*
402 * First of all, let me give my opinion of what the DUMMY_FRAME
403 * actually looks like.
404 *
405 * | |
406 * | |
407 * + - - - - - - - - - - - - - - - - +<-- fp (level 0)
408 * | |
409 * | |
410 * | |
411 * | |
412 * | Frame of innermost program |
413 * | function |
414 * | |
415 * | |
416 * | |
417 * | |
418 * | |
419 * |---------------------------------|<-- sp (level 0), fp (c)
420 * | |
421 * DUMMY | fp0-31 |
422 * | |
423 * | ------ |<-- fp - 0x80
424 * FRAME | g0-7 |<-- fp - 0xa0
425 * | i0-7 |<-- fp - 0xc0
426 * | other |<-- fp - 0xe0
427 * | ? |
428 * | ? |
429 * |---------------------------------|<-- sp' = fp - 0x140
430 * | |
431 * xcution start | |
432 * sp' + 0x94 -->| CALL_DUMMY (x code) |
433 * | |
434 * | |
435 * |---------------------------------|<-- sp'' = fp - 0x200
436 * | align sp to 8 byte boundary |
437 * | ==> args to fn <== |
438 * Room for | |
439 * i & l's + agg | CALL_DUMMY_STACK_ADJUST = 0x0x44|
440 * |---------------------------------|<-- final sp (variable)
441 * | |
442 * | Where function called will |
443 * | build frame. |
444 * | |
445 * | |
446 *
447 * I understand everything in this picture except what the space
448 * between fp - 0xe0 and fp - 0x140 is used for. Oh, and I don't
449 * understand why there's a large chunk of CALL_DUMMY that never gets
450 * executed (its function is superceeded by PUSH_DUMMY_FRAME; they
451 * are designed to do the same thing).
452 *
453 * PUSH_DUMMY_FRAME saves the registers above sp' and pushes the
454 * register file stack down one.
455 *
456 * call_function then writes CALL_DUMMY, pushes the args onto the
457 * stack, and adjusts the stack pointer.
458 *
459 * run_stack_dummy then starts execution (in the middle of
460 * CALL_DUMMY, as directed by call_function).
461 */
462
463/* Push an empty stack frame, to record the current PC, etc. */
464
465#define PUSH_DUMMY_FRAME sparc_push_dummy_frame ()
466#define POP_FRAME sparc_pop_frame ()
467
468void sparc_push_dummy_frame PARAMS ((void)), sparc_pop_frame PARAMS ((void));
469
470#ifndef CALL_DUMMY
471/* This sequence of words is the instructions
472
473 0: bc 10 00 01 mov %g1, %fp
474 4: 9d e3 80 00 save %sp, %g0, %sp
475 8: bc 10 00 02 mov %g2, %fp
476 c: be 10 00 03 mov %g3, %i7
c5aa993b
JM
477 10: da 03 a0 58 ld [ %sp + 0x58 ], %o5
478 14: d8 03 a0 54 ld [ %sp + 0x54 ], %o4
479 18: d6 03 a0 50 ld [ %sp + 0x50 ], %o3
480 1c: d4 03 a0 4c ld [ %sp + 0x4c ], %o2
481 20: d2 03 a0 48 ld [ %sp + 0x48 ], %o1
482 24: 40 00 00 00 call <fun>
483 28: d0 03 a0 44 ld [ %sp + 0x44 ], %o0
484 2c: 01 00 00 00 nop
485 30: 91 d0 20 01 ta 1
486 34: 01 00 00 00 nop
c906108c
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487
488 NOTES:
c5aa993b
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489 * the first four instructions are necessary only on the simulator.
490 * this is a multiple of 8 (not only 4) bytes.
491 * the `call' insn is a relative, not an absolute call.
492 * the `nop' at the end is needed to keep the trap from
493 clobbering things (if NPC pointed to garbage instead).
494 */
c906108c
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495
496#define CALL_DUMMY { 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003, \
497 0xda03a058, 0xd803a054, 0xd603a050, 0xd403a04c, \
498 0xd203a048, 0x40000000, 0xd003a044, 0x01000000, \
499 0x91d02001, 0x01000000 }
500
501
502/* Size of the call dummy in bytes. */
503
504#define CALL_DUMMY_LENGTH 0x38
505
506/* Offset within call dummy of first instruction to execute. */
507
508#define CALL_DUMMY_START_OFFSET 0
509
510/* Offset within CALL_DUMMY of the 'call' instruction. */
511
512#define CALL_DUMMY_CALL_OFFSET (CALL_DUMMY_START_OFFSET + 0x24)
513
514/* Offset within CALL_DUMMY of the 'ta 1' instruction. */
515
516#define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + 0x30)
517
518#define CALL_DUMMY_STACK_ADJUST 68
519
520#endif
521/* Insert the specified number of args and function address
522 into a call sequence of the above form stored at DUMMYNAME. */
523
524#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
525 sparc_fix_call_dummy (dummyname, pc, fun, type, gcc_p)
526void sparc_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
c5aa993b 527 struct type * value_type, int using_gcc));
c906108c
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528
529/* The Sparc returns long doubles on the stack. */
530
531#define RETURN_VALUE_ON_STACK(TYPE) \
532 (TYPE_CODE(TYPE) == TYPE_CODE_FLT \
533 && TYPE_LENGTH(TYPE) > 8)
534\f
535/* Sparc has no reliable single step ptrace call */
536
537#define SOFTWARE_SINGLE_STEP_P 1
538extern void sparc_software_single_step PARAMS ((unsigned int, int));
539#define SOFTWARE_SINGLE_STEP(sig,bp_p) sparc_software_single_step (sig,bp_p)
540
541/* We need more arguments in a frame specification for the
542 "frame" or "info frame" command. */
543
544#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
545extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
546
547/* To print every pair of float registers as a double, we use this hook.
548 We also print the condition code registers in a readable format
549 (FIXME: can expand this to all control regs). */
550
551#undef PRINT_REGISTER_HOOK
552#define PRINT_REGISTER_HOOK(regno) \
553 sparc_print_register_hook (regno)
554extern void sparc_print_register_hook PARAMS ((int regno));
555
556
557/* Optimization for storing registers to the inferior. The hook
558 DO_DEFERRED_STORES
559 actually executes any deferred stores. It is called any time
560 we are going to proceed the child, or read its registers.
561 The hook CLEAR_DEFERRED_STORES is called when we want to throw
562 away the inferior process, e.g. when it dies or we kill it.
563 FIXME, this does not handle remote debugging cleanly. */
564
565extern int deferred_stores;
566#define DO_DEFERRED_STORES \
567 if (deferred_stores) \
568 target_store_registers (-2);
569#define CLEAR_DEFERRED_STORES \
570 deferred_stores = 0;
571
572/* If the current gcc for for this target does not produce correct debugging
573 information for float parameters, both prototyped and unprototyped, then
574 define this macro. This forces gdb to always assume that floats are
575 passed as doubles and then converted in the callee. */
576
577#define COERCE_FLOAT_TO_DOUBLE 1
578
579/* Select the sparc disassembler */
580
581#define TM_PRINT_INSN_MACH bfd_mach_sparc
582
583/* Arguments smaller than an int must promoted to ints when synthesizing
584 function calls. */
585
586#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
392a587b 587 (sparc_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
c906108c 588extern CORE_ADDR
c5aa993b 589 sparc_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));