1 /* Target machine sub-parameters for SPARC64, for GDB, the GNU debugger.
2 This is included by other tm-*.h files to define SPARC64 cpu-related info.
3 Copyright 1994, 1995 Free Software Foundation, Inc.
4 This is (obviously) based on the SPARC Vn (n<9) port.
5 Contributed by Doug Evans (dje@cygnus.com).
7 This file is part of GDB.
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.
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.
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, Boston, MA 02111-1307, USA. */
23 #define GDB_TARGET_IS_SPARC64
25 /* Need to define this so gdb will know what to do with long long's.
26 Defining FORCE_LONG_LONG is incorrect (as of 940731) because that
27 doesn't work for BFD64 targets. */
29 #define CC_HAS_LONG_LONG
31 #include "sparc/tm-sparc.h"
33 /* Stack has strict alignment. */
36 #define STACK_ALIGN(ADDR) (((ADDR)+15)&-16)
38 /* Number of machine registers. */
43 /* Initializer for an array of names of registers.
44 There should be NUM_REGS strings in this initializer. */
45 /* Some of these registers are only accessible from priviledged mode.
46 They are here for kernel debuggers, etc. */
47 /* FIXME: icc and xcc are currently considered separate registers.
48 This may have to change and consider them as just one (ccr).
49 Let's postpone this as long as we can. It's nice to be able to set
51 /* FIXME: fcc0-3 are currently separate, even though they are also part of
52 fsr. May have to remove them but let's postpone this as long as
53 possible. It's nice to be able to set them individually. */
54 /* FIXME: Whether to include f33, f35, etc. here is not clear.
55 There are advantages and disadvantages. */
58 #define REGISTER_NAMES \
59 { "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
60 "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
61 "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
62 "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
64 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
65 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
66 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
67 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
68 "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \
69 "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", \
71 "pc", "npc", "ccr", "fsr", "fprs", "y", "asi", \
72 "ver", "tick", "pil", "pstate", \
73 "tstate", "tba", "tl", "tt", "tpc", "tnpc", "wstate", \
74 "cwp", "cansave", "canrestore", "cleanwin", "otherwin", \
75 "asr16", "asr17", "asr18", "asr19", "asr20", "asr21", \
76 "asr22", "asr23", "asr24", "asr25", "asr26", "asr27", \
77 "asr28", "asr29", "asr30", "asr31", \
78 /* These are here at the end to simplify removing them if we have to. */ \
79 "icc", "xcc", "fcc0", "fcc1", "fcc2", "fcc3" \
82 /* Register numbers of various important registers.
83 Note that some of these values are "real" register numbers,
84 and correspond to the general registers of the machine,
85 and some are "phony" register numbers which are too large
86 to be actual register numbers as far as the user is concerned
87 but do serve to get the desired values when passed to read_register. */
89 #if 0 /* defined in tm-sparc.h, replicated for doc purposes */
90 #define G0_REGNUM 0 /* %g0 */
91 #define G1_REGNUM 1 /* %g1 */
92 #define O0_REGNUM 8 /* %o0 */
93 #define SP_REGNUM 14 /* Contains address of top of stack, \
94 which is also the bottom of the frame. */
95 #define RP_REGNUM 15 /* Contains return address value, *before* \
96 any windows get switched. */
97 #define O7_REGNUM 15 /* Last local reg not saved on stack frame */
98 #define L0_REGNUM 16 /* First local reg that's saved on stack frame
99 rather than in machine registers */
100 #define I0_REGNUM 24 /* %i0 */
101 #define FP_REGNUM 30 /* Contains address of executing stack frame */
102 #define I7_REGNUM 31 /* Last local reg saved on stack frame */
103 #define FP0_REGNUM 32 /* Floating point register 0 */
106 #define FP_MAX_REGNUM 80 /* 1 + last fp reg number */
108 /* #undef v8 misc. regs */
119 /* v9 misc. and priv. regs */
121 #define C0_REGNUM FP_MAX_REGNUM /* Start of control registers */
122 #define PC_REGNUM (C0_REGNUM + 0) /* Current PC */
123 #define NPC_REGNUM (C0_REGNUM + 1) /* Next PC */
124 #define CCR_REGNUM (C0_REGNUM + 2) /* Condition Code Register (%xcc,%icc) */
125 #define FSR_REGNUM (C0_REGNUM + 3) /* Floating Point State */
126 #define FPRS_REGNUM (C0_REGNUM + 4) /* Floating Point Registers State */
127 #define Y_REGNUM (C0_REGNUM + 5) /* Temp register for multiplication, etc. */
128 #define ASI_REGNUM (C0_REGNUM + 6) /* Alternate Space Identifier */
129 #define VER_REGNUM (C0_REGNUM + 7) /* Version register */
130 #define TICK_REGNUM (C0_REGNUM + 8) /* Tick register */
131 #define PIL_REGNUM (C0_REGNUM + 9) /* Processor Interrupt Level */
132 #define PSTATE_REGNUM (C0_REGNUM + 10) /* Processor State */
133 #define TSTATE_REGNUM (C0_REGNUM + 11) /* Trap State */
134 #define TBA_REGNUM (C0_REGNUM + 12) /* Trap Base Address */
135 #define TL_REGNUM (C0_REGNUM + 13) /* Trap Level */
136 #define TT_REGNUM (C0_REGNUM + 14) /* Trap Type */
137 #define TPC_REGNUM (C0_REGNUM + 15) /* Trap pc */
138 #define TNPC_REGNUM (C0_REGNUM + 16) /* Trap npc */
139 #define WSTATE_REGNUM (C0_REGNUM + 17) /* Window State */
140 #define CWP_REGNUM (C0_REGNUM + 18) /* Current Window Pointer */
141 #define CANSAVE_REGNUM (C0_REGNUM + 19) /* Savable Windows */
142 #define CANRESTORE_REGNUM (C0_REGNUM + 20) /* Restorable Windows */
143 #define CLEANWIN_REGNUM (C0_REGNUM + 21) /* Clean Windows */
144 #define OTHERWIN_REGNUM (C0_REGNUM + 22) /* Other Windows */
145 #define ASR_REGNUM(n) (C0_REGNUM+(23-16)+(n)) /* Ancillary State Register
147 #define ICC_REGNUM (C0_REGNUM + 39) /* 32 bit condition codes */
148 #define XCC_REGNUM (C0_REGNUM + 40) /* 64 bit condition codes */
149 #define FCC0_REGNUM (C0_REGNUM + 41) /* fp cc reg 0 */
150 #define FCC1_REGNUM (C0_REGNUM + 42) /* fp cc reg 1 */
151 #define FCC2_REGNUM (C0_REGNUM + 43) /* fp cc reg 2 */
152 #define FCC3_REGNUM (C0_REGNUM + 44) /* fp cc reg 3 */
154 /* Total amount of space needed to store our copies of the machine's
155 register state, the array `registers'.
156 Some of the registers aren't 64 bits, but it's a lot simpler just to assume
157 they all are (since most of them are). */
158 #undef REGISTER_BYTES
159 #define REGISTER_BYTES (32*8+32*8+45*8)
161 /* Index within `registers' of the first byte of the space for
164 #define REGISTER_BYTE(N) \
166 : (N) < 64 ? 32*8 + ((N)-32)*4 \
167 : (N) < C0_REGNUM ? 32*8 + 32*4 + ((N)-64)*8 \
168 : 64*8 + ((N)-C0_REGNUM)*8)
170 /* Say how long (ordinary) registers are. This is a piece of bogosity
171 used in push_word and a few other places; REGISTER_RAW_SIZE is the
172 real way to know how big a register is. */
175 #define REGISTER_SIZE 8
177 /* Number of bytes of storage in the actual machine representation
179 /* ??? It's not clear whether we want to return 4 or 8 for fp regs. */
181 #undef REGISTER_RAW_SIZE
182 #define REGISTER_RAW_SIZE(N) 8
184 /* Number of bytes of storage in the program's representation
187 #undef REGISTER_VIRTUAL_SIZE
188 #define REGISTER_VIRTUAL_SIZE(N) 8
190 /* Largest value REGISTER_RAW_SIZE can have. */
191 /* tm-sparc.h defines this as 8, but play it safe. */
193 #undef MAX_REGISTER_RAW_SIZE
194 #define MAX_REGISTER_RAW_SIZE 8
196 /* Largest value REGISTER_VIRTUAL_SIZE can have. */
197 /* tm-sparc.h defines this as 8, but play it safe. */
199 #undef MAX_REGISTER_VIRTUAL_SIZE
200 #define MAX_REGISTER_VIRTUAL_SIZE 8
202 /* Return the GDB type object for the "standard" data type
203 of data in register N. */
205 #undef REGISTER_VIRTUAL_TYPE
206 #define REGISTER_VIRTUAL_TYPE(N) \
207 ((N) < 32 ? builtin_type_long_long : (N) < 80 ? builtin_type_float : \
208 builtin_type_long_long)
210 /* We use to support both 32 bit and 64 bit pointers.
211 We can't anymore because TARGET_PTR_BIT must now be a constant. */
212 #undef TARGET_PTR_BIT
213 #define TARGET_PTR_BIT 64
215 /* Does the specified function use the "struct returning" convention
216 or the "value returning" convention? The "value returning" convention
217 almost invariably returns the entire value in registers. The
218 "struct returning" convention often returns the entire value in
219 memory, and passes a pointer (out of or into the function) saying
220 where the value (is or should go).
222 Since this sometimes depends on whether it was compiled with GCC,
223 this is also an argument. This is used in call_function to build a
224 stack, and in value_being_returned to print return values.
226 On sparc64, all structs are returned via a pointer. */
228 #undef USE_STRUCT_CONVENTION
229 #define USE_STRUCT_CONVENTION(gcc_p, type) 1
231 /* Store the address of the place in which to copy the structure the
232 subroutine will return. This is called from call_function. */
233 /* FIXME: V9 uses %o0 for this. */
235 #undef STORE_STRUCT_RETURN
236 #define STORE_STRUCT_RETURN(ADDR, SP) \
237 { target_write_memory ((SP)+(16*8), (char *)&(ADDR), 8); }
239 /* Return number of bytes at start of arglist that are not really args. */
241 #undef FRAME_ARGS_SKIP
242 #define FRAME_ARGS_SKIP 136
244 /* We need two arguments (in general) to the "info frame" command.
245 Note that the definition of this macro implies that there exists a
246 function "setup_arbitrary_frame" in sparc-tdep.c */
248 #undef SETUP_ARBITRARY_FRAME /*FIXME*/
249 #undef FRAME_SPECIFICATION_DYADIC
250 #define FRAME_SPECIFICATION_DYADIC
252 /* To print every pair of float registers as a double, we use this hook.
253 We also print the condition code registers in a readable format
254 (FIXME: can expand this to all control regs). */
256 #undef PRINT_REGISTER_HOOK
257 #define PRINT_REGISTER_HOOK(regno) \
258 sparc_print_register_hook (regno)
260 /* Offsets into jmp_buf.
261 FIXME: This was borrowed from the v8 stuff and will probably have to change
264 #define JB_ELEMENT_SIZE 8 /* Size of each element in jmp_buf */
266 #define JB_ONSSTACK 0
276 /* Figure out where the longjmp will land. We expect that we have just entered
277 longjmp and haven't yet setup the stack frame, so the args are still in the
278 output regs. %o0 (O0_REGNUM) points at the jmp_buf structure from which we
279 extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
280 This routine returns true on success */
283 get_longjmp_target
PARAMS ((CORE_ADDR
*));
285 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
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