1 /* Parameters for HP 9000 model 320 hosting, for GDB, the GNU debugger.
2 Copyright (C) 1986, 1987, 1989, 1992 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
20 #define HOST_BYTE_ORDER BIG_ENDIAN
22 /* HPUX 8.0, in its infinite wisdom, has chosen to prototype ptrace
23 with five arguments, so programs written for normal ptrace lose.
27 (They should have just made it varadic). */
28 #define FIVE_ARG_PTRACE
30 /* Define this to indicate problems with traps after continuing. */
33 /* Set flag to indicate whether HP's assembler is in use. */
38 #else /* not GNU C. */
40 #endif /* not GNU C. */
42 /* Define this for versions of hp-ux older than 6.0 */
43 /* #define HPUX_VERSION_5 */
45 /* define USG if you are using sys5 /usr/include's */
46 #undef USG /* In case it was defined in the Makefile for cplus-dem.c */
49 /* The mem functions are in <string.h>. */
50 #undef MEM_FNS_DECLARED
51 #define MEM_FNS_DECLARED 1
55 /* Get rid of any system-imposed stack limit if possible. */
56 /* The hp9k320.h doesn't seem to have this feature. */
57 /* #define SET_STACK_LIMIT_HUGE */
58 /* So we'll just have to avoid big alloca's. */
59 #define BROKEN_LARGE_ALLOCA
61 #define REGISTER_ADDR(u_ar0, regno) \
63 (((regno) < PS_REGNUM) \
64 ? (&((struct exception_stack *) (u_ar0))->e_regs[(regno + R0)]) \
65 : (((regno) == PS_REGNUM) \
66 ? ((int *) (&((struct exception_stack *) (u_ar0))->e_PS)) \
67 : (&((struct exception_stack *) (u_ar0))->e_PC)))
69 #define FP_REGISTER_ADDR(u, regno) \
71 (((regno) < FPC_REGNUM) \
72 ? (&u.u_pcb.pcb_mc68881[FMC68881_R0 + (((regno) - FP0_REGNUM) * 3)]) \
73 : (&u.u_pcb.pcb_mc68881[FMC68881_C + ((regno) - FPC_REGNUM)]))) \
76 /* Interface definitions for kernel debugger KDB. */
78 /* Map machine fault codes into signal numbers.
79 First subtract 0, divide by 4, then index in a table.
80 Faults for which the entry in this table is 0
81 are not handled by KDB; the program's own trap handler
82 gets to handle then. */
84 #define FAULT_CODE_ORIGIN 0
85 #define FAULT_CODE_UNITS 4
87 { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \
88 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \
89 0, 0, 0, 0, 0, 0, 0, 0, \
94 /* Start running with a stack stretching from BEG to END.
95 BEG and END should be symbols meaningful to the assembler.
96 This is used only for kdb. */
98 #define INIT_STACK(beg, end) \
99 { asm (".globl end"); \
100 asm ("movel $ end, sp"); \
103 /* Push the frame pointer register on the stack. */
104 #define PUSH_FRAME_PTR \
105 asm ("movel fp, -(sp)");
107 /* Copy the top-of-stack to the frame pointer register. */
108 #define POP_FRAME_PTR \
109 asm ("movl (sp), fp");
111 /* After KDB is entered by a fault, push all registers
112 that GDB thinks about (all NUM_REGS of them),
113 so that they appear in order of ascending GDB register number.
114 The fault code will be on the stack beyond the last register. */
116 #define PUSH_REGISTERS \
117 { asm ("clrw -(sp)"); \
118 asm ("pea 10(sp)"); \
119 asm ("movem $ 0xfffe,-(sp)"); }
121 /* Assuming the registers (including processor status) have been
122 pushed on the stack in order of ascending GDB register number,
123 restore them and return to the address in the saved PC register. */
125 #define POP_REGISTERS \
126 { asm ("subil $8,28(sp)"); \
127 asm ("movem (sp),$ 0xffff"); \
132 /* Start running with a stack stretching from BEG to END.
133 BEG and END should be symbols meaningful to the assembler.
134 This is used only for kdb. */
136 #define INIT_STACK(beg, end) \
137 { asm ("global end"); \
138 asm ("mov.l &end,%sp"); \
141 /* Push the frame pointer register on the stack. */
142 #define PUSH_FRAME_PTR \
143 asm ("mov.l %fp,-(%sp)");
145 /* Copy the top-of-stack to the frame pointer register. */
146 #define POP_FRAME_PTR \
147 asm ("mov.l (%sp),%fp");
149 /* After KDB is entered by a fault, push all registers
150 that GDB thinks about (all NUM_REGS of them),
151 so that they appear in order of ascending GDB register number.
152 The fault code will be on the stack beyond the last register. */
154 #define PUSH_REGISTERS \
155 { asm ("clr.w -(%sp)"); \
156 asm ("pea 10(%sp)"); \
157 asm ("movm.l &0xfffe,-(%sp)"); }
159 /* Assuming the registers (including processor status) have been
160 pushed on the stack in order of ascending GDB register number,
161 restore them and return to the address in the saved PC register. */
163 #define POP_REGISTERS \
164 { asm ("subi.l &8,28(%sp)"); \
165 asm ("mov.m (%sp),&0xffff"); \
168 #endif /* HPUX_ASM */