aboutsummaryrefslogtreecommitdiff
path: root/gdb/config/a29k/tm-ultra3.h
blob: 8b96210e475eae7bcca8d9f9520f4b0be615dee8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
/* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger.
   Copyright 1990, 1991 Free Software Foundation, Inc.
   Contributed by David Wood @ New York University (wood@nyu.edu). 
   
This file is part of GDB.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* This file includes tm-a29k.h, but predefines REGISTER_NAMES and
   related macros.  The file supports a a29k running our flavor of
   Unix on our Ultra3 PE Boards.  */

/* Byte order is configurable, but this machine runs big-endian.  */
#define TARGET_BYTE_ORDER BIG_ENDIAN

/* Initializer for an array of names of registers.
   There should be NUM_REGS strings in this initializer.
 */
#define NUM_REGS   (EXO_REGNUM + 1)	

#define REGISTER_NAMES { 						 \
 "gr1",									 \
 "gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \
 "gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \
 "gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \
 "gr91", "gr92", "gr93", "gr94", "gr95",				 \
 "gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \
 "gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \
 "gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \
 "gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127",		 \
 "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9",   \
 "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \
 "lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \
 "lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \
 "lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \
 "lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \
 "lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \
 "lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \
 "lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \
 "lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \
 "lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \
 "lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \
 "lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \
 "lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \
 "lr124", "lr125", "lr126", "lr127",					 \
 "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr",	 \
 "pc0", "pc1", "pc2", "mmu", "lru",					 \
 "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr",			 \
 "fpe", "int", "fps", "exo" }


#ifdef KERNEL_DEBUGGING
# define	PADDR_U_REGNUM	22		/* gr86 */
# define	RETURN_REGNUM	GR64_REGNUM	
#else
# define	RETURN_REGNUM	GR96_REGNUM	
#endif	/* KERNEL_DEBUGGING */


/* Should rename all GR96_REGNUM to RETURN_REGNUM */ 
#define GR1_REGNUM 	(0)
#define GR64_REGNUM	1
#define GR96_REGNUM 	(GR64_REGNUM + 32)
/* This needs to be the memory stack pointer, not the register stack pointer,
   to make call_function work right.  */
#define SP_REGNUM 	MSP_REGNUM

#define FP_REGNUM 	(LR0_REGNUM + 1)	/* lr1 */
/* Large Return Pointer  */
#define LRP_REGNUM (123 - 96 + RETURN_REGNUM)
/* Static link pointer   */
#define SLP_REGNUM (124 - 96 + RETURN_REGNUM)
/* Memory Stack Pointer.  */
#define MSP_REGNUM (125 - 96 + RETURN_REGNUM)
/* Register allocate bound.  */
#define RAB_REGNUM (126 - 96 + RETURN_REGNUM)
/* Register Free Bound.  */
#define RFB_REGNUM (127 - 96 + RETURN_REGNUM)
/* Register Stack Pointer.  */
#define RSP_REGNUM GR1_REGNUM
#define LR0_REGNUM ( 32 +  GR96_REGNUM) 

/* Protected Special registers */
#define VAB_REGNUM (LR0_REGNUM +  128)
#define OPS_REGNUM (VAB_REGNUM + 1)  
#define CPS_REGNUM (VAB_REGNUM + 2)  
#define CFG_REGNUM (VAB_REGNUM + 3)  
#define CHA_REGNUM (VAB_REGNUM + 4)  
#define CHD_REGNUM (VAB_REGNUM + 5)  
#define CHC_REGNUM (VAB_REGNUM + 6)  
#define RBP_REGNUM (VAB_REGNUM + 7)  
#define TMC_REGNUM (VAB_REGNUM + 8)  
#define TMR_REGNUM (VAB_REGNUM + 9)  
#define NPC_REGNUM (VAB_REGNUM + 10)	/* pc0 */
#define PC_REGNUM  (VAB_REGNUM + 11)  	/* pc1 */
#define PC2_REGNUM (VAB_REGNUM + 12)  	/* pc2 */
#define MMU_REGNUM (VAB_REGNUM + 13)
#define LRU_REGNUM (VAB_REGNUM + 14)
	/* Register sequence gap */
/* Unprotected Special registers */
#define IPC_REGNUM (LRU_REGNUM + 1) 
#define IPA_REGNUM (IPC_REGNUM + 1) 
#define IPB_REGNUM (IPC_REGNUM + 2) 
#define Q_REGNUM   (IPC_REGNUM + 3) 
#define ALU_REGNUM (IPC_REGNUM + 4) 
#define PS_REGNUM  ALU_REGNUM
#define BP_REGNUM  (IPC_REGNUM + 5) 
#define FC_REGNUM  (IPC_REGNUM + 6) 
#define CR_REGNUM  (IPC_REGNUM + 7) 
	/* Register sequence gap */
#define FPE_REGNUM (CR_REGNUM  + 1) 
#define INT_REGNUM (FPE_REGNUM + 1) 
#define FPS_REGNUM (FPE_REGNUM + 2) 
	/* Register sequence gap */
#define EXO_REGNUM (FPS_REGNUM + 1) 

/* Special register #x.  */
#define SR_REGNUM(x) \
  ((x) < 15  ? VAB_REGNUM + (x)					 \
   : (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128)		 \
   : (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160)		 \
   : (x) == 164 ? EXO_REGNUM                                     \
   : (error ("Internal error in SR_REGNUM"), 0))

#ifndef KERNEL_DEBUGGING
/*
 * This macro defines the register numbers (from REGISTER_NAMES) that
 * are effectively unavailable to the user through ptrace().  It allows 
 * us to include the whole register set in REGISTER_NAMES (inorder to 
 * better support remote debugging).  If it is used in 
 * fetch/store_inferior_registers() gdb will not complain about I/O errors 
 * on fetching these registers.  If all registers in REGISTER_NAMES
 * are available, then return false (0).
 */
#define CANNOT_STORE_REGISTER(regno)		\
                  (((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) ||	\
                   ((regno)==VAB_REGNUM) ||	\
		   ((regno)==OPS_REGNUM) ||	\
                   ((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM)     ||	\
                   ((regno)==MMU_REGNUM) ||	\
		   ((regno)==LRU_REGNUM) ||	\
                   ((regno)>=ALU_REGNUM) ||	\
                   ((regno)==CR_REGNUM)  ||	\
		   ((regno)==EXO_REGNUM))
#define CANNOT_FETCH_REGISTER(regno)	CANNOT_STORE_REGISTER(regno)
#endif /* KERNEL_DEBUGGING */

/*
 * Converts an sdb register number to an internal gdb register number.
 * Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or...
 * 		  	gr64->0...gr95->31, lr0->32...lr127->159.
 */
#define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \
		 		                 ((value)-32+LR0_REGNUM))

#ifdef KERNEL_DEBUGGING
  /* ublock virtual address as defined in our sys/param.h */
  /* FIXME: Should get this from sys/param.h */
# define UVADDR	((32*0x100000)-8192)    
#endif

/*
 * Are we in sigtramp(), needed in infrun.c.  Specific to ultra3, because
 * we take off the leading '_'.
 */
#if !defined(KERNEL_DEBUGGING)
#ifdef SYM1
# define IN_SIGTRAMP(pc, name) (name && STREQ ("sigtramp", name))
#else
        Need to define IN_SIGTRAMP() for sym2.
#endif
#endif /* !KERNEL_DEBUGGING */

#include "a29k/tm-a29k.h"

/**** The following are definitions that override those in tm-a29k.h ****/

/* This sequence of words is the instructions
   mtsrim cr, 15
   loadm 0, 0, lr2, msp     ; load first 16 words of arguments into registers
   add msp, msp, 16 * 4     ; point to the remaining arguments
  CONST_INSN:
   const gr96,inf
   consth gr96,inf
   calli lr0, gr96
   aseq 0x40,gr1,gr1   ; nop
   asneq 0x50,gr1,gr1  ; breakpoint
   When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64,
                                    7d  -> 5d,    60  -> 40
   */

/* Position of the "const" instruction within CALL_DUMMY in bytes.  */
#undef CALL_DUMMY
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#ifdef KERNEL_DEBUGGING /* gr96 -> gr64 */
#  define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff,    \
                    0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101}
#else
#  define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff,    \
                    0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101}
#endif /* KERNEL_DEBUGGING */
#else /* Byte order differs.  */
  you lose
#endif /* Byte order differs.  */

#if !defined(KERNEL_DEBUGGING)
# ifdef SYM1
#  undef  DECR_PC_AFTER_BREAK
#  define DECR_PC_AFTER_BREAK 0	/* Sym1 kernel does the decrement */
# else
    ->"ULTRA3 running other than sym1 OS"!;
# endif
#endif /* !KERNEL_DEBUGGING */