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Annotation of sys/arch/sparc/include/db_machdep.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: db_machdep.h,v 1.13 2005/11/13 17:50:44 fgsch Exp $   */
                      2: /*     $NetBSD: db_machdep.h,v 1.10 1997/08/31 21:23:40 pk Exp $ */
                      3:
                      4: /*
                      5:  * Mach Operating System
                      6:  * Copyright (c) 1991,1990 Carnegie Mellon University
                      7:  * All Rights Reserved.
                      8:  *
                      9:  * Permission to use, copy, modify and distribute this software and its
                     10:  * documentation is hereby granted, provided that both the copyright
                     11:  * notice and this permission notice appear in all copies of the
                     12:  * software, derivative works or modified versions, and any portions
                     13:  * thereof, and that both notices appear in supporting documentation.
                     14:  *
                     15:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     16:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     17:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     18:  *
                     19:  * Carnegie Mellon requests users of this software to return to
                     20:  *
                     21:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     22:  *  School of Computer Science
                     23:  *  Carnegie Mellon University
                     24:  *  Pittsburgh PA 15213-3890
                     25:  *
                     26:  * any improvements or extensions that they make and grant Carnegie Mellon
                     27:  * the rights to redistribute these changes.
                     28:  */
                     29:
                     30: #ifndef        _SPARC_DB_MACHDEP_H_
                     31: #define        _SPARC_DB_MACHDEP_H_
                     32:
                     33: /*
                     34:  * Machine-dependent defines for new kernel debugger.
                     35:  */
                     36:
                     37:
                     38: #include <uvm/uvm_extern.h>
                     39: #include <machine/frame.h>
                     40: #include <machine/psl.h>
                     41: #include <machine/trap.h>
                     42: #include <machine/reg.h>
                     43:
                     44: /* end of mangling */
                     45:
                     46: typedef        vaddr_t         db_addr_t;      /* address - unsigned */
                     47: typedef        long            db_expr_t;      /* expression - signed */
                     48:
                     49: typedef struct {
                     50:        struct trapframe db_tf;
                     51:        struct frame     db_fr;
                     52: } db_regs_t;
                     53:
                     54: extern db_regs_t       ddb_regs;       /* register state */
                     55: #define        DDB_REGS        (&ddb_regs)
                     56: #define        DDB_TF          (&ddb_regs.db_tf)
                     57: #define        DDB_FR          (&ddb_regs.db_fr)
                     58:
                     59: #define        PC_REGS(regs)   ((db_addr_t)(regs)->db_tf.tf_pc)
                     60: #define        SET_PC_REGS(regs, value)        (regs)->db_tf.tf_pc = (int)(value)
                     61: #define        PC_ADVANCE(regs) do {                           \
                     62:        int n = (regs)->db_tf.tf_npc;                   \
                     63:        (regs)->db_tf.tf_pc = n;                        \
                     64:        (regs)->db_tf.tf_npc = n + 4;                   \
                     65: } while(0)
                     66:
                     67: #define        BKPT_INST       0x91d02001      /* breakpoint instruction */
                     68: #define        BKPT_SIZE       (4)             /* size of breakpoint inst */
                     69: #define        BKPT_SET(inst)  (BKPT_INST)
                     70:
                     71: #define        db_clear_single_step(regs)      (void) (0)
                     72: #define        db_set_single_step(regs)        (void) (0)
                     73:
                     74: #define        IS_BREAKPOINT_TRAP(type, code)  \
                     75:        ((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
                     76: #define IS_WATCHPOINT_TRAP(type, code) (0)
                     77:
                     78: #define        inst_trap_return(ins)   ((ins)&0)
                     79: #define        inst_return(ins)        ((ins)&0)
                     80: #define        inst_call(ins)          ((ins)&0)
                     81: #define inst_load(ins)         0
                     82: #define inst_store(ins)                0
                     83:
                     84: #define DB_MACHINE_COMMANDS
                     85:
                     86: void db_machine_init(void);
                     87: int kdb_trap(int, struct trapframe *);
                     88:
                     89: #define DB_ELF_SYMBOLS
                     90: #define DB_ELFSIZE     32
                     91:
                     92:
                     93: /*
                     94:  * KGDB definitions
                     95:  */
                     96: typedef u_long         kgdb_reg_t;
                     97: #define KGDB_NUMREGS   72
                     98: #define KGDB_BUFLEN    1024
                     99:
                    100: #define KGDB_PREPARE   fb_unblank()
                    101: #define KGDB_ENTER     __asm("ta %0" :: "n" (T_KGDB_EXEC))
                    102:
                    103: #endif /* _SPARC_DB_MACHDEP_H_ */