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, 1995, 1996, 1997,
4 1998, 1999, 2000, 2001, 2002, 2003
5 Free Software Foundation, Inc.
6 Contributed by Michael Tiemann (tiemann@mcc.com)
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
32 * The following enums are purely for the convenience of the GDB
33 * developer, when debugging GDB.
36 enum { /* Sparc general registers, for all sparc versions. */
37 G0_REGNUM
, G1_REGNUM
, G2_REGNUM
, G3_REGNUM
,
38 G4_REGNUM
, G5_REGNUM
, G6_REGNUM
, G7_REGNUM
,
39 O0_REGNUM
, O1_REGNUM
, O2_REGNUM
, O3_REGNUM
,
40 O4_REGNUM
, O5_REGNUM
, O6_REGNUM
, O7_REGNUM
,
41 L0_REGNUM
, L1_REGNUM
, L2_REGNUM
, L3_REGNUM
,
42 L4_REGNUM
, L5_REGNUM
, L6_REGNUM
, L7_REGNUM
,
43 I0_REGNUM
, I1_REGNUM
, I2_REGNUM
, I3_REGNUM
,
44 I4_REGNUM
, I5_REGNUM
, I6_REGNUM
, I7_REGNUM
,
45 FP0_REGNUM
/* Floating point register 0 */
48 enum { /* Sparc general registers, alternate names. */
49 R0_REGNUM
, R1_REGNUM
, R2_REGNUM
, R3_REGNUM
,
50 R4_REGNUM
, R5_REGNUM
, R6_REGNUM
, R7_REGNUM
,
51 R8_REGNUM
, R9_REGNUM
, R10_REGNUM
, R11_REGNUM
,
52 R12_REGNUM
, R13_REGNUM
, R14_REGNUM
, R15_REGNUM
,
53 R16_REGNUM
, R17_REGNUM
, R18_REGNUM
, R19_REGNUM
,
54 R20_REGNUM
, R21_REGNUM
, R22_REGNUM
, R23_REGNUM
,
55 R24_REGNUM
, R25_REGNUM
, R26_REGNUM
, R27_REGNUM
,
56 R28_REGNUM
, R29_REGNUM
, R30_REGNUM
, R31_REGNUM
59 enum { /* Sparc32 control registers. */
60 PS_REGNUM
= 65, /* PC, NPC, and Y are omitted because */
61 WIM_REGNUM
= 66, /* they have different values depending on */
62 TBR_REGNUM
= 67, /* 32-bit / 64-bit mode. */
67 /* v9 misc. and priv. regs */
69 /* Note: specifying values explicitly for documentation purposes. */
70 enum { /* Sparc64 control registers, excluding Y, PC, and NPC. */
71 CCR_REGNUM
= 82, /* Condition Code Register (%xcc,%icc) */
72 FSR_REGNUM
= 83, /* Floating Point State */
73 FPRS_REGNUM
= 84, /* Floating Point Registers State */
74 ASI_REGNUM
= 86, /* Alternate Space Identifier */
75 VER_REGNUM
= 87, /* Version register */
76 TICK_REGNUM
= 88, /* Tick register */
77 PIL_REGNUM
= 89, /* Processor Interrupt Level */
78 PSTATE_REGNUM
= 90, /* Processor State */
79 TSTATE_REGNUM
= 91, /* Trap State */
80 TBA_REGNUM
= 92, /* Trap Base Address */
81 TL_REGNUM
= 93, /* Trap Level */
82 TT_REGNUM
= 94, /* Trap Type */
83 TPC_REGNUM
= 95, /* Trap pc */
84 TNPC_REGNUM
= 96, /* Trap npc */
85 WSTATE_REGNUM
= 97, /* Window State */
86 CWP_REGNUM
= 98, /* Current Window Pointer */
87 CANSAVE_REGNUM
= 99, /* Savable Windows */
88 CANRESTORE_REGNUM
= 100, /* Restorable Windows */
89 CLEANWIN_REGNUM
= 101, /* Clean Windows */
90 OTHERWIN_REGNUM
= 102, /* Other Windows */
91 ASR16_REGNUM
= 103, /* Ancillary State Registers */
107 ICC_REGNUM
= 119, /* 32 bit condition codes */
108 XCC_REGNUM
= 120, /* 64 bit condition codes */
109 FCC0_REGNUM
= 121, /* fp cc reg 0 */
110 FCC1_REGNUM
= 122, /* fp cc reg 1 */
111 FCC2_REGNUM
= 123, /* fp cc reg 2 */
112 FCC3_REGNUM
= 124 /* fp cc reg 3 */
116 * Make sparc target multi-archable: April 2000
119 #if defined (GDB_MULTI_ARCH) && (GDB_MULTI_ARCH > 0)
121 /* Multi-arch definition of TARGET_IS_SPARC64, TARGET_ELF64 */
122 #undef GDB_TARGET_IS_SPARC64
123 #define GDB_TARGET_IS_SPARC64 \
124 (sparc_intreg_size () == 8)
126 #define TARGET_ELF64 \
127 (sparc_intreg_size () == 8)
128 extern int sparc_intreg_size (void);
131 /* Non-multi-arch: if it isn't defined, define it to zero. */
132 #ifndef GDB_TARGET_IS_SPARC64
133 #define GDB_TARGET_IS_SPARC64 0
136 #define TARGET_ELF64 0
140 #if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
142 * The following defines must go away for MULTI_ARCH
145 /* Initializer for an array of names of registers.
146 There should be NUM_REGS strings in this initializer. */
148 #define REGISTER_NAMES \
149 { "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
150 "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
151 "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
152 "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
154 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
155 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
156 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
157 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
159 "y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr" \
162 /* Offset from address of function to start of its code.
163 Zero on most machines. */
165 #define FUNCTION_START_OFFSET 0
167 /* Amount PC must be decremented by after a breakpoint.
168 This is often the number of bytes in BREAKPOINT
171 #define DECR_PC_AFTER_BREAK 0
173 /* Say how long (ordinary) registers are. This is a piece of bogosity
174 used in push_word and a few other places; REGISTER_RAW_SIZE is the
175 real way to know how big a register is. */
177 #define REGISTER_SIZE 4
179 /* Number of machine registers */
183 #define SP_REGNUM 14 /* Contains address of top of stack, \
184 which is also the bottom of the frame. */
185 #define FP_REGNUM 30 /* Contains address of executing stack frame */
187 #define FP0_REGNUM 32 /* Floating point register 0 */
189 #define Y_REGNUM 64 /* Temp register for multiplication, etc. */
191 #define PC_REGNUM 68 /* Contains program counter */
193 #define NPC_REGNUM 69 /* Contains next PC */
196 /* Total amount of space needed to store our copies of the machine's
197 register state, the array `registers'. On the sparc, `registers'
198 contains the ins and locals, even though they are saved on the
199 stack rather than with the other registers, and this causes hair
200 and confusion in places like pop_frame. It might be better to
201 remove the ins and locals from `registers', make sure that
202 get_saved_register can get them from the stack (even in the
203 innermost frame), and make this the way to access them. For the
204 frame pointer we would do that via TARGET_READ_FP. On the other
205 hand, that is likely to be confusing or worse for flat frames. */
207 #define REGISTER_BYTES (32*4+32*4+8*4)
209 /* Index within `registers' of the first byte of the space for
212 #define REGISTER_BYTE(N) ((N)*4)
214 /* Number of bytes of storage in the actual machine representation for
217 /* On the SPARC, all regs are 4 bytes (except Sparc64, where they're 8). */
219 #define REGISTER_RAW_SIZE(N) (4)
221 /* Number of bytes of storage in the program's representation
224 /* On the SPARC, all regs are 4 bytes (except Sparc64, where they're 8). */
226 #define REGISTER_VIRTUAL_SIZE(N) (4)
228 /* Largest value REGISTER_RAW_SIZE can have. */
230 #define MAX_REGISTER_RAW_SIZE 8
232 /* Largest value REGISTER_VIRTUAL_SIZE can have. */
234 #define MAX_REGISTER_VIRTUAL_SIZE 8
236 /* Return the GDB type object for the "standard" data type
237 of data in register N. */
239 #define REGISTER_VIRTUAL_TYPE(N) \
240 ((N) < 32 ? builtin_type_int : (N) < 64 ? builtin_type_float : \
243 /* Sun /bin/cc gets this right as of SunOS 4.1.x. We need to define
244 BELIEVE_PCC_PROMOTION to get this right now that the code which
245 detects gcc2_compiled. is broken. This loses for SunOS 4.0.x and
248 #define BELIEVE_PCC_PROMOTION 1
250 /* Advance PC across any function entry prologue instructions
251 to reach some "real" code. */
253 extern CORE_ADDR
sparc_skip_prologue (CORE_ADDR
);
254 #define SKIP_PROLOGUE(PC) sparc_skip_prologue (PC)
256 /* Immediately after a function call, return the saved pc.
257 Can't go through the frames for this because on some machines
258 the new frame is not set up until the new function executes
259 some instructions. */
261 #define SAVED_PC_AFTER_CALL(FRAME) PC_ADJUST (read_register (RP_REGNUM))
263 /* Stack grows downward. */
265 #define INNER_THAN(LHS,RHS) ((LHS) < (RHS))
267 /* Write into appropriate registers a function return value of type
268 TYPE, given in virtual format. */
270 #define DEPRECATED_STORE_RETURN_VALUE(TYPE, VALBUF) \
271 sparc_store_return_value (TYPE, VALBUF)
272 extern void sparc_store_return_value (struct type
*, char *);
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). */
278 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
279 sparc_extract_struct_value_address (REGBUF)
281 extern CORE_ADDR
sparc_extract_struct_value_address (char *);
283 /* Stack must be aligned on 64-bit boundaries when synthesizing
284 function calls (128-bit for sparc64). */
286 #define STACK_ALIGN(ADDR) sparc32_stack_align (ADDR)
287 extern CORE_ADDR
sparc32_stack_align (CORE_ADDR addr
);
289 /* The Sparc returns long doubles on the stack. */
291 #define RETURN_VALUE_ON_STACK(TYPE) \
292 (TYPE_CODE(TYPE) == TYPE_CODE_FLT \
293 && TYPE_LENGTH(TYPE) > 8)
295 /* When passing a structure to a function, Sun cc passes the address
296 not the structure itself. It (under SunOS4) creates two symbols,
297 which we need to combine to a LOC_REGPARM. Gcc version two (as of
298 1.92) behaves like sun cc. REG_STRUCT_HAS_ADDR is smart enough to
299 distinguish between Sun cc, gcc version 1 and gcc version 2. */
301 #define REG_STRUCT_HAS_ADDR(GCC_P, TYPE) \
302 sparc_reg_struct_has_addr (GCC_P, TYPE)
303 extern int sparc_reg_struct_has_addr (int, struct type
*);
305 /* Is the prologue at PC frameless? */
306 #define PROLOGUE_FRAMELESS_P(PC) sparc_prologue_frameless_p (PC)
307 extern int sparc_prologue_frameless_p (CORE_ADDR
);
309 #endif /* GDB_MULTI_ARCH */
311 #if defined (GDB_MULTI_ARCH) && (GDB_MULTI_ARCH > 0)
313 * The following defines should ONLY appear for MULTI_ARCH.
316 /* Multi-arch the nPC and Y registers. */
317 #define Y_REGNUM (sparc_y_regnum ())
318 extern int sparc_npc_regnum (void);
319 extern int sparc_y_regnum (void);
321 #endif /* GDB_MULTI_ARCH */
323 /* On the Sun 4 under SunOS, the compile will leave a fake insn which
324 encodes the structure size being returned. If we detect such
325 a fake insn, step past it. */
327 #define PC_ADJUST(PC) sparc_pc_adjust (PC)
328 extern CORE_ADDR
sparc_pc_adjust (CORE_ADDR
);
330 /* If an argument is declared "register", Sun cc will keep it in a register,
331 never saving it onto the stack. So we better not believe the "p" symbol
334 #define USE_REGISTER_NOT_ARG
336 /* For acc, there's no need to correct LBRAC entries by guessing how
337 they should work. In fact, this is harmful because the LBRAC
338 entries now all appear at the end of the function, not intermixed
339 with the SLINE entries. n_opt_found detects acc for Solaris binaries;
340 function_stab_type detects acc for SunOS4 binaries.
342 For binary from SunOS4 /bin/cc, need to correct LBRAC's.
344 For gcc, like acc, don't correct. */
346 #define SUN_FIXED_LBRAC_BUG \
348 || function_stab_type == N_STSYM \
349 || function_stab_type == N_GSYM \
350 || processing_gcc_compilation)
352 /* Do variables in the debug stabs occur after the N_LBRAC or before it?
353 acc: after, gcc: before, SunOS4 /bin/cc: before. */
355 #define VARIABLES_INSIDE_BLOCK(desc, gcc_p) \
358 || function_stab_type == N_STSYM \
359 || function_stab_type == N_GSYM))
361 /* Sequence of bytes for breakpoint instruction (ta 1). */
363 #define BREAKPOINT {0x91, 0xd0, 0x20, 0x01}
365 /* Register numbers of various important registers.
366 Note that some of these values are "real" register numbers,
367 and correspond to the general registers of the machine,
368 and some are "phony" register numbers which are too large
369 to be actual register numbers as far as the user is concerned
370 but do serve to get the desired values when passed to read_register. */
372 #define G0_REGNUM 0 /* %g0 */
373 #define G1_REGNUM 1 /* %g1 */
374 #define O0_REGNUM 8 /* %o0 */
375 #define RP_REGNUM 15 /* Contains return address value, *before* \
376 any windows get switched. */
377 #define O7_REGNUM 15 /* Last local reg not saved on stack frame */
378 #define L0_REGNUM 16 /* First local reg that's saved on stack frame
379 rather than in machine registers */
380 #define I0_REGNUM 24 /* %i0 */
381 #define I7_REGNUM 31 /* Last local reg saved on stack frame */
382 #define PS_REGNUM 65 /* Contains processor status */
383 #define PS_FLAG_CARRY 0x100000 /* Carry bit in PS */
384 #define WIM_REGNUM 66 /* Window Invalid Mask (not really supported) */
385 #define TBR_REGNUM 67 /* Trap Base Register (not really supported) */
386 #define FPS_REGNUM 70 /* Floating point status register */
387 #define CPS_REGNUM 71 /* Coprocessor status register */
389 /* Writing to %g0 is a noop (not an error or exception or anything like
392 #define CANNOT_STORE_REGISTER(regno) ((regno) == G0_REGNUM)
395 * FRAME_CHAIN and FRAME_INFO definitions, collected here for convenience.
398 #if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
400 * The following defines must go away for MULTI_ARCH.
403 /* Describe the pointer in each stack frame to the previous stack frame
406 /* FRAME_CHAIN takes a frame's nominal address
407 and produces the frame's chain-pointer. */
409 /* In the case of the Sun 4, the frame-chain's nominal address
410 is held in the frame pointer register.
412 On the Sun4, the frame (in %fp) is %sp for the previous frame.
413 From the previous frame's %sp, we can find the previous frame's
414 %fp: it is in the save area just above the previous frame's %sp.
416 If we are setting up an arbitrary frame, we'll need to know where
417 it ends. Hence the following. This part of the frame cache
418 structure should be checked before it is assumed that this frame's
419 bottom is in the stack pointer.
421 If there isn't a frame below this one, the bottom of this frame is
422 in the stack pointer.
424 If there is a frame below this one, and the frame pointers are
425 identical, it's a leaf frame and the bottoms are the same also.
427 Otherwise the bottom of this frame is the top of the next frame.
429 The bottom field is misnamed, since it might imply that memory from
430 bottom to frame contains this frame. That need not be true if
431 stack frames are allocated in different segments (e.g. some on a
432 stack, some on a heap in the data segment).
434 GCC 2.6 and later can generate ``flat register window'' code that
435 makes frames by explicitly saving those registers that need to be
436 saved. %i7 is used as the frame pointer, and the frame is laid out
437 so that flat and non-flat calls can be intermixed freely within a
438 program. Unfortunately for GDB, this means it must detect and
439 record the flatness of frames.
441 Since the prologue in a flat frame also tells us where fp and pc
442 have been stashed (the frame is of variable size, so their location
443 is not fixed), it's convenient to record them in the frame info. */
445 #define EXTRA_FRAME_INFO \
449 /* Following fields only relevant for flat frames. */ \
452 /* Add this to ->frame to get the value of the stack pointer at the */ \
453 /* time of the register saves. */ \
456 /* We need to override GET_SAVED_REGISTER so that we can deal with the
457 way outs change into ins in different frames. */
459 void sparc_get_saved_register (char *raw_buffer
,
462 struct frame_info
*frame
,
463 int regnum
, enum lval_type
*lvalp
);
465 #define GET_SAVED_REGISTER(RAW_BUFFER, OPTIMIZED, ADDRP, FRAME, REGNUM, LVAL) \
466 sparc_get_saved_register (RAW_BUFFER, OPTIMIZED, ADDRP, \
469 #define FRAME_INIT_SAVED_REGS(FP) /*no-op */
471 #define INIT_EXTRA_FRAME_INFO(FROMLEAF, FCI) \
472 sparc_init_extra_frame_info (FROMLEAF, FCI)
473 extern void sparc_init_extra_frame_info (int, struct frame_info
*);
475 #define FRAME_CHAIN(THISFRAME) (sparc_frame_chain (THISFRAME))
476 extern CORE_ADDR
sparc_frame_chain (struct frame_info
*);
478 /* A macro that tells us whether the function invocation represented
479 by FI does not have a frame on the stack associated with it. If it
480 does not, FRAMELESS is set to 1, else 0. */
482 #define FRAMELESS_FUNCTION_INVOCATION(FI) \
483 frameless_look_for_prologue (FI)
485 /* Where is the PC for a specific frame */
487 #define FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME)
488 extern CORE_ADDR
sparc_frame_saved_pc (struct frame_info
*);
490 /* If the argument is on the stack, it will be here. */
491 #define FRAME_ARGS_ADDRESS(FI) (get_frame_base (FI))
493 #define FRAME_LOCALS_ADDRESS(FI) (get_frame_base (FI))
495 /* Set VAL to the number of args passed to frame described by FI.
496 Can set VAL to -1, meaning no way to tell. */
498 /* We can't tell how many args there are
499 now that the C compiler delays popping them. */
500 #define FRAME_NUM_ARGS(FI) (-1)
502 /* Return number of bytes at start of arglist that are not really args. */
504 #define FRAME_ARGS_SKIP 68
506 #endif /* GDB_MULTI_ARCH */
508 #define PRINT_EXTRA_FRAME_INFO(FI) \
509 sparc_print_extra_frame_info (FI)
510 extern void sparc_print_extra_frame_info (struct frame_info
*);
512 /* INIT_EXTRA_FRAME_INFO needs the PC to detect flat frames. */
514 #define DEPRECATED_INIT_FRAME_PC(FROMLEAF, PREV) (init_frame_pc_noop (FROMLEAF, PREV))
515 #define DEPRECATED_INIT_FRAME_PC_FIRST(FROMLEAF, PREV) \
516 ((FROMLEAF) ? SAVED_PC_AFTER_CALL ((PREV)->next) : \
517 (PREV)->next ? FRAME_SAVED_PC ((PREV)->next) : read_pc ())
519 /* Define other aspects of the stack frame. */
521 /* The location of I0 w.r.t SP. This is actually dependent on how the
522 system's window overflow/underflow routines are written. Most
523 vendors save the L regs followed by the I regs (at the higher
524 address). Some vendors get it wrong. */
526 #define FRAME_SAVED_L0 0
527 #define FRAME_SAVED_I0 (8 * REGISTER_RAW_SIZE (L0_REGNUM))
529 #define FRAME_STRUCT_ARGS_ADDRESS(FI) (get_frame_base (FI))
531 /* Things needed for making the inferior call functions. */
533 * First of all, let me give my opinion of what the DUMMY_FRAME
534 * actually looks like.
538 * + - - - - - - - - - - - - - - - - +<-- fp (level 0)
543 * | Frame of innermost program |
550 * |---------------------------------|<-- sp (level 0), fp (c)
554 * | ------ |<-- fp - 0x80
555 * FRAME | g0-7 |<-- fp - 0xa0
556 * | i0-7 |<-- fp - 0xc0
557 * | other |<-- fp - 0xe0
560 * |---------------------------------|<-- sp' = fp - 0x140
563 * sp' + 0x94 -->| CALL_DUMMY (x code) |
566 * |---------------------------------|<-- sp'' = fp - 0x200
567 * | align sp to 8 byte boundary |
568 * | ==> args to fn <== |
570 * i & l's + agg | CALL_DUMMY_STACK_ADJUST = 0x0x44|
571 * |---------------------------------|<-- final sp (variable)
573 * | Where function called will |
578 * I understand everything in this picture except what the space
579 * between fp - 0xe0 and fp - 0x140 is used for. Oh, and I don't
580 * understand why there's a large chunk of CALL_DUMMY that never gets
581 * executed (its function is superceeded by PUSH_DUMMY_FRAME; they
582 * are designed to do the same thing).
584 * PUSH_DUMMY_FRAME saves the registers above sp' and pushes the
585 * register file stack down one.
587 * call_function then writes CALL_DUMMY, pushes the args onto the
588 * stack, and adjusts the stack pointer.
590 * run_stack_dummy then starts execution (in the middle of
591 * CALL_DUMMY, as directed by call_function).
595 /* This sequence of words is the instructions
597 00: bc 10 00 01 mov %g1, %fp
598 04: 9d e3 80 00 save %sp, %g0, %sp
599 08: bc 10 00 02 mov %g2, %fp
600 0c: be 10 00 03 mov %g3, %i7
601 10: da 03 a0 58 ld [ %sp + 0x58 ], %o5
602 14: d8 03 a0 54 ld [ %sp + 0x54 ], %o4
603 18: d6 03 a0 50 ld [ %sp + 0x50 ], %o3
604 1c: d4 03 a0 4c ld [ %sp + 0x4c ], %o2
605 20: d2 03 a0 48 ld [ %sp + 0x48 ], %o1
606 24: 40 00 00 00 call <fun>
607 28: d0 03 a0 44 ld [ %sp + 0x44 ], %o0
613 * the first four instructions are necessary only on the simulator.
614 * this is a multiple of 8 (not only 4) bytes.
615 * the `call' insn is a relative, not an absolute call.
616 * the `nop' at the end is needed to keep the trap from
617 clobbering things (if NPC pointed to garbage instead).
620 #if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
622 * The following defines must go away for MULTI_ARCH.
625 #define CALL_DUMMY { 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003, \
626 0xda03a058, 0xd803a054, 0xd603a050, 0xd403a04c, \
627 0xd203a048, 0x40000000, 0xd003a044, 0x01000000, \
628 0x91d02001, 0x01000000 }
631 /* Size of the call dummy in bytes. */
633 #define CALL_DUMMY_LENGTH 0x38
635 /* Offset within call dummy of first instruction to execute. */
637 #define CALL_DUMMY_START_OFFSET 0
639 /* Offset within CALL_DUMMY of the 'call' instruction. */
641 #define CALL_DUMMY_CALL_OFFSET (CALL_DUMMY_START_OFFSET + 0x24)
643 /* Offset within CALL_DUMMY of the 'ta 1' trap instruction. */
645 #define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + 0x30)
647 #define CALL_DUMMY_STACK_ADJUST 68
649 /* Call dummy method (eg. on stack, at entry point, etc.) */
651 #define CALL_DUMMY_LOCATION ON_STACK
653 /* Method for detecting dummy frames. */
655 #define DEPRECATED_PC_IN_CALL_DUMMY(PC, SP, FRAME_ADDRESS) \
656 deprecated_pc_in_call_dummy_on_stack (PC, SP, FRAME_ADDRESS)
658 #endif /* GDB_MULTI_ARCH */
660 #endif /* CALL_DUMMY */
662 #if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
664 * The following defines must go away for MULTI_ARCH.
667 /* Insert the specified number of args and function address
668 into a call sequence of the above form stored at DUMMYNAME. */
670 #define FIX_CALL_DUMMY(DUMMYNAME, PC, FUN, NARGS, ARGS, TYPE, GCC_P) \
671 sparc_fix_call_dummy (DUMMYNAME, PC, FUN, TYPE, GCC_P)
672 void sparc_fix_call_dummy (char *dummy
, CORE_ADDR pc
, CORE_ADDR fun
,
673 struct type
*value_type
, int using_gcc
);
675 /* Arguments smaller than an int must be promoted to ints when
676 synthesizing function calls. */
678 /* Push an empty stack frame, to record the current PC, etc. */
680 #define PUSH_DUMMY_FRAME sparc_push_dummy_frame ()
681 #define POP_FRAME sparc_pop_frame ()
683 void sparc_push_dummy_frame (void);
684 void sparc_pop_frame (void);
686 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
687 sparc32_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
689 extern CORE_ADDR
sparc32_push_arguments (int, struct value
**, CORE_ADDR
, int,
692 /* Store the address of the place in which to copy the structure the
693 subroutine will return. This is called from call_function_by_hand.
694 The ultimate mystery is, tho, what is the value "16"? */
696 #define STORE_STRUCT_RETURN(ADDR, SP) \
698 store_unsigned_integer (val, 4, (ADDR)); \
699 write_memory ((SP)+(16*4), val, 4); }
701 /* Default definition of USE_STRUCT_CONVENTION. */
703 #ifndef USE_STRUCT_CONVENTION
704 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
705 generic_use_struct_convention (GCC_P, TYPE)
708 /* Extract from an array REGBUF containing the (raw) register state a
709 function return value of type TYPE, and copy that, in virtual
710 format, into VALBUF. */
712 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
713 sparc32_extract_return_value (TYPE, REGBUF, VALBUF)
714 extern void sparc32_extract_return_value (struct type
*, char[], char *);
716 #endif /* GDB_MULTI_ARCH */
719 /* Sparc has no reliable single step ptrace call */
721 #define SOFTWARE_SINGLE_STEP_P() 1
722 extern void sparc_software_single_step (enum target_signal
, int);
723 #define SOFTWARE_SINGLE_STEP(sig,bp_p) sparc_software_single_step (sig,bp_p)
725 /* We need more arguments in a frame specification for the
726 "frame" or "info frame" command. */
728 #define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
729 extern struct frame_info
*setup_arbitrary_frame (int, CORE_ADDR
*);
731 extern void sparc_do_registers_info (int regnum
, int all
);
732 #undef DEPRECATED_DO_REGISTERS_INFO
733 #define DEPRECATED_DO_REGISTERS_INFO(REGNUM,ALL) sparc_do_registers_info (REGNUM, ALL)
735 /* Optimization for storing registers to the inferior. The hook
737 actually executes any deferred stores. It is called any time
738 we are going to proceed the child, or read its registers.
739 The hook CLEAR_DEFERRED_STORES is called when we want to throw
740 away the inferior process, e.g. when it dies or we kill it.
741 FIXME, this does not handle remote debugging cleanly. */
743 extern int deferred_stores
;
744 #define DO_DEFERRED_STORES \
745 if (deferred_stores) \
746 target_store_registers (-2);
747 #define CLEAR_DEFERRED_STORES \
750 /* Select the sparc disassembler */
752 #define TM_PRINT_INSN_MACH bfd_mach_sparc
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