1 /* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger.
2 Copyright 1990, 1991 Free Software Foundation, Inc.
3 Contributed by David Wood @ New York University (wood@nyu.edu).
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* This file includes tm-29k.h, but predefines REGISTER_NAMES and
22 related macros. The file supports a 29k running our flavor of
23 Unix on our Ultra3 PE Boards. */
25 /* Byte order is configurable, but this machine runs big-endian. */
26 #define TARGET_BYTE_ORDER BIG_ENDIAN
28 /* Initializer for an array of names of registers.
29 There should be NUM_REGS strings in this initializer.
31 #define NUM_REGS (EXO_REGNUM + 1)
33 #define REGISTER_NAMES { \
35 "gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \
36 "gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \
37 "gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \
38 "gr91", "gr92", "gr93", "gr94", "gr95", \
39 "gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \
40 "gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \
41 "gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \
42 "gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127", \
43 "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9", \
44 "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \
45 "lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \
46 "lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \
47 "lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \
48 "lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \
49 "lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \
50 "lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \
51 "lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \
52 "lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \
53 "lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \
54 "lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \
55 "lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \
56 "lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \
57 "lr124", "lr125", "lr126", "lr127", \
58 "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr", \
59 "pc0", "pc1", "pc2", "mmu", "lru", \
60 "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr", \
61 "fpe", "int", "fps", "exo" }
64 #ifdef KERNEL_DEBUGGING
65 # define PADDR_U_REGNUM 22 /* gr86 */
66 # define RETURN_REGNUM GR64_REGNUM
68 # define RETURN_REGNUM GR96_REGNUM
69 #endif /* KERNEL_DEBUGGING */
72 /* Should rename all GR96_REGNUM to RETURN_REGNUM */
73 #define GR1_REGNUM (0)
75 #define GR96_REGNUM (GR64_REGNUM + 32)
76 /* This needs to be the memory stack pointer, not the register stack pointer,
77 to make call_function work right. */
78 #define SP_REGNUM MSP_REGNUM
80 #define FP_REGNUM (LR0_REGNUM + 1) /* lr1 */
81 /* Large Return Pointer */
82 #define LRP_REGNUM (123 - 96 + RETURN_REGNUM)
83 /* Static link pointer */
84 #define SLP_REGNUM (124 - 96 + RETURN_REGNUM)
85 /* Memory Stack Pointer. */
86 #define MSP_REGNUM (125 - 96 + RETURN_REGNUM)
87 /* Register allocate bound. */
88 #define RAB_REGNUM (126 - 96 + RETURN_REGNUM)
89 /* Register Free Bound. */
90 #define RFB_REGNUM (127 - 96 + RETURN_REGNUM)
91 /* Register Stack Pointer. */
92 #define RSP_REGNUM GR1_REGNUM
93 #define LR0_REGNUM ( 32 + GR96_REGNUM)
95 /* Protected Special registers */
96 #define VAB_REGNUM (LR0_REGNUM + 128)
97 #define OPS_REGNUM (VAB_REGNUM + 1)
98 #define CPS_REGNUM (VAB_REGNUM + 2)
99 #define CFG_REGNUM (VAB_REGNUM + 3)
100 #define CHA_REGNUM (VAB_REGNUM + 4)
101 #define CHD_REGNUM (VAB_REGNUM + 5)
102 #define CHC_REGNUM (VAB_REGNUM + 6)
103 #define RBP_REGNUM (VAB_REGNUM + 7)
104 #define TMC_REGNUM (VAB_REGNUM + 8)
105 #define TMR_REGNUM (VAB_REGNUM + 9)
106 #define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */
107 #define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */
108 #define PC2_REGNUM (VAB_REGNUM + 12) /* pc2 */
109 #define MMU_REGNUM (VAB_REGNUM + 13)
110 #define LRU_REGNUM (VAB_REGNUM + 14)
111 /* Register sequence gap */
112 /* Unprotected Special registers */
113 #define IPC_REGNUM (LRU_REGNUM + 1)
114 #define IPA_REGNUM (IPC_REGNUM + 1)
115 #define IPB_REGNUM (IPC_REGNUM + 2)
116 #define Q_REGNUM (IPC_REGNUM + 3)
117 #define ALU_REGNUM (IPC_REGNUM + 4)
118 #define PS_REGNUM ALU_REGNUM
119 #define BP_REGNUM (IPC_REGNUM + 5)
120 #define FC_REGNUM (IPC_REGNUM + 6)
121 #define CR_REGNUM (IPC_REGNUM + 7)
122 /* Register sequence gap */
123 #define FPE_REGNUM (CR_REGNUM + 1)
124 #define INT_REGNUM (FPE_REGNUM + 1)
125 #define FPS_REGNUM (FPE_REGNUM + 2)
126 /* Register sequence gap */
127 #define EXO_REGNUM (FPS_REGNUM + 1)
129 /* Special register #x. */
130 #define SR_REGNUM(x) \
131 ((x) < 15 ? VAB_REGNUM + (x) \
132 : (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128) \
133 : (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160) \
134 : (x) == 164 ? EXO_REGNUM \
135 : (error ("Internal error in SR_REGNUM"), 0))
137 #ifndef KERNEL_DEBUGGING
139 * This macro defines the register numbers (from REGISTER_NAMES) that
140 * are effectively unavailable to the user through ptrace(). It allows
141 * us to include the whole register set in REGISTER_NAMES (inorder to
142 * better support remote debugging). If it is used in
143 * fetch/store_inferior_registers() gdb will not complain about I/O errors
144 * on fetching these registers. If all registers in REGISTER_NAMES
145 * are available, then return false (0).
147 #define CANNOT_STORE_REGISTER(regno) \
148 (((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) || \
149 ((regno)==VAB_REGNUM) || \
150 ((regno)==OPS_REGNUM) || \
151 ((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM) || \
152 ((regno)==MMU_REGNUM) || \
153 ((regno)==LRU_REGNUM) || \
154 ((regno)>=ALU_REGNUM) || \
155 ((regno)==CR_REGNUM) || \
156 ((regno)==EXO_REGNUM))
157 #define CANNOT_FETCH_REGISTER(regno) CANNOT_STORE_REGISTER(regno)
158 #endif /* KERNEL_DEBUGGING */
161 * Converts an sdb register number to an internal gdb register number.
162 * Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or...
163 * gr64->0...gr95->31, lr0->32...lr127->159.
165 #define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \
166 ((value)-32+LR0_REGNUM))
168 #ifdef KERNEL_DEBUGGING
169 /* ublock virtual address as defined in our sys/param.h */
170 /* FIXME: Should get this from sys/param.h */
171 # define UVADDR ((32*0x100000)-8192)
175 * Are we in sigtramp(), needed in infrun.c. Specific to ultra3, because
176 * we take off the leading '_'.
178 #if !defined(KERNEL_DEBUGGING)
180 # define IN_SIGTRAMP(pc, name) (name && !strcmp ("sigtramp", name))
182 Need to define
IN_SIGTRAMP() for sym2
.
184 #endif /* !KERNEL_DEBUGGING */
188 /**** The following are definitions that override those in tm-29k.h ****/
190 /* This sequence of words is the instructions
192 loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers
193 add msp, msp, 16 * 4 ; point to the remaining arguments
198 aseq 0x40,gr1,gr1 ; nop
199 asneq 0x50,gr1,gr1 ; breakpoint
200 When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64,
204 /* Position of the "const" instruction within CALL_DUMMY in bytes. */
206 #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
207 #ifdef KERNEL_DEBUGGING /* gr96 -> gr64 */
208 # define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff, \
209 0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101}
211 # define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff, \
212 0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101}
213 #endif /* KERNEL_DEBUGGING */
214 #else /* Byte order differs. */
216 #endif /* Byte order differs. */
218 #if !defined(KERNEL_DEBUGGING)
220 # undef DECR_PC_AFTER_BREAK
221 # define DECR_PC_AFTER_BREAK 0 /* Sym1 kernel does the decrement */
223 ->"ULTRA3 running other than sym1 OS"!;
225 #endif /* !KERNEL_DEBUGGING */
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