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Annotation of sys/arch/sh/include/db_machdep.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: db_machdep.h,v 1.3 2006/11/02 22:16:22 mickey Exp $   */
        !             2: /*     $NetBSD: db_machdep.h,v 1.12 2006/05/10 06:24:03 skrll 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        _SH_DB_MACHDEP_H_
        !            31: #define        _SH_DB_MACHDEP_H_
        !            32:
        !            33: /*
        !            34:  * Machine-dependent defines for the kernel debugger.
        !            35:  */
        !            36:
        !            37: #include <sys/param.h>
        !            38: #include <uvm/uvm_extern.h>
        !            39: #include <sh/trap.h>
        !            40:
        !            41: typedef        vaddr_t         db_addr_t;      /* address - unsigned */
        !            42: typedef        long            db_expr_t;      /* expression - signed */
        !            43:
        !            44: typedef struct trapframe db_regs_t;
        !            45: extern db_regs_t       ddb_regs;       /* register state */
        !            46: #define        DDB_REGS        (&ddb_regs)
        !            47:
        !            48: #define        PC_REGS(regs)   ((db_addr_t)(regs)->tf_spc)
        !            49: #define PC_ADVANCE(regs) ((regs)->tf_spc += BKPT_SIZE)
        !            50:
        !            51: #define        BKPT_INST       0xc3c3          /* breakpoint instruction */
        !            52: #define        BKPT_SIZE       2               /* size of breakpoint inst */
        !            53: #define        BKPT_SET(inst)  BKPT_INST
        !            54:
        !            55: #define        FIXUP_PC_AFTER_BREAK(regs)      ((regs)->tf_spc -= BKPT_SIZE)
        !            56:
        !            57: #define        IS_BREAKPOINT_TRAP(type, code)  ((type) == EXPEVT_TRAPA)
        !            58: #define        IS_WATCHPOINT_TRAP(type, code)  (0) /* XXX (msaitoh) */
        !            59:
        !            60: #define        inst_load(ins)          0
        !            61: #define        inst_store(ins)         0
        !            62:
        !            63: /* macro for checking if a thread has used floating-point */
        !            64: #define        db_thread_fp_used(thread)       ((thread)->pcb->ims.ifps != 0)
        !            65:
        !            66: int kdb_trap(int, int, db_regs_t *);
        !            67: void db_machine_init (void);
        !            68: boolean_t inst_call(int);
        !            69: boolean_t inst_return(int);
        !            70: boolean_t inst_trap_return(int);
        !            71:
        !            72: /*
        !            73:  * We use ELF symbols in DDB.
        !            74:  *
        !            75:  */
        !            76: #define        DB_ELF_SYMBOLS
        !            77: #define        DB_ELFSIZE      32
        !            78:
        !            79: /*
        !            80:  * We have machine-dependent commands.
        !            81:  */
        !            82: #define        DB_MACHINE_COMMANDS
        !            83:
        !            84: #endif /* !_SH_DB_MACHDEP_H_ */