Annotation of sys/arch/mips64/include/db_machdep.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: db_machdep.h,v 1.8 2005/04/19 15:23:37 miod Exp $ */
2:
3: /*
4: * Copyright (c) 1998-2003 Opsycon AB (www.opsycon.se)
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25: * SUCH DAMAGE.
26: *
27: */
28:
29: #ifndef _MIPS_DB_MACHDEP_H_
30: #define _MIPS_DB_MACHDEP_H_
31:
32: #include <machine/frame.h>
33: #include <machine/trap.h>
34: #include <uvm/uvm_param.h>
35:
36: #define DB_MACHINE_COMMANDS /* We have machine specific commands */
37: #define DB_ELF_SYMBOLS /* Elf style symbol table support */
38:
39: typedef struct trap_frame db_regs_t;
40: extern db_regs_t ddb_regs;
41:
42: typedef long db_expr_t;
43: typedef vaddr_t db_addr_t;
44:
45: #define SOFTWARE_SSTEP /* Need software single step */
46: #define SOFTWARE_SSTEP_EMUL /* next_instr_address() emulates 100% */
47: db_addr_t next_instr_address(db_addr_t, boolean_t);
48: #define BKPT_SIZE (4)
49: #define BKPT_SET(ins) (BREAK_DDB)
50: #define DB_VALID_BREAKPOINT(addr) (((addr) & 3) == 0)
51:
52: #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAK)
53: #define IS_WATCHPOINT_TRAP(type, code) (0) /* XXX mips3 watchpoint */
54:
55: #define PC_REGS(regs) ((db_addr_t)(regs)->pc)
56: #define SET_PC_REGS(regs, value) (regs)->pc = (register_t)(value)
57: #define DDB_REGS (&ddb_regs)
58:
59: /*
60: * Test of instructions to see class.
61: */
62: #define IT_CALL 0x01
63: #define IT_BRANCH 0x02
64: #define IT_LOAD 0x03
65: #define IT_STORE 0x04
66:
67: #define inst_branch(i) (db_inst_type(i) == IT_BRANCH)
68: #define inst_trap_return(i) ((i) & 0)
69: #define inst_call(i) (db_inst_type(i) == IT_CALL)
70: #define inst_return(i) ((i) == 0x03e00008)
71: #define inst_load(i) (db_inst_type(i) == IT_LOAD)
72: #define inst_store(i) (db_inst_type(i) == IT_STORE)
73:
74: int db_inst_type(int);
75: void db_machine_init(void);
76:
77: #endif /* !_MIPS_DB_MACHDEP_H_ */
CVSweb