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

1.1     ! nbrk        1: /*     $OpenBSD: db_machdep.h,v 1.19 2005/12/17 07:31:23 miod Exp $    */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1997 Niklas Hallqvist.  All rights reserved.
        !             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 OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            17:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            18:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
        !            19:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
        !            20:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
        !            21:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
        !            22:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
        !            23:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
        !            24:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            25:  */
        !            26:
        !            27: #ifndef        _ALPHA_DB_MACHDEP_H_
        !            28: #define        _ALPHA_DB_MACHDEP_H_
        !            29:
        !            30: /* XXX - Need to include vm.h for boolean_t */
        !            31: #include <uvm/uvm_extern.h>
        !            32:
        !            33: /*
        !            34:  * We use Elf64 symbols in DDB.
        !            35:  */
        !            36: #define        DB_ELF_SYMBOLS
        !            37: #define        DB_ELFSIZE      64
        !            38:
        !            39: struct opcode {
        !            40:        enum opc_fmt { OPC_PAL, OPC_RES, OPC_MEM, OPC_OP, OPC_BR } opc_fmt;
        !            41:        char *opc_name;
        !            42:        int opc_print;
        !            43: };
        !            44: extern struct opcode opcode[];
        !            45:
        !            46: /* types the generic ddb module needs */
        !            47: typedef        vaddr_t db_addr_t;
        !            48: typedef        long db_expr_t;
        !            49: typedef struct trapframe db_regs_t;
        !            50:
        !            51: extern db_regs_t       ddb_regs;
        !            52: #define        DDB_REGS        (&ddb_regs)
        !            53:
        !            54: #define        PC_REGS(regs)   ((db_addr_t)(regs)->tf_regs[FRAME_PC])
        !            55: #define        SET_PC_REGS(regs, value) (regs)->tf_regs[FRAME_PC] = (unsigned long)(value)
        !            56:
        !            57: /* Breakpoint related definitions */
        !            58: #define        BKPT_INST       0x00000080      /* call_pal bpt */
        !            59: #define        BKPT_SIZE       sizeof(int)
        !            60: #define        BKPT_SET(inst)  BKPT_INST
        !            61:
        !            62: #define        IS_BREAKPOINT_TRAP(type, code) \
        !            63:     ((type) == ALPHA_KENTRY_IF && (code) == ALPHA_IF_CODE_BPT)
        !            64: #ifdef notyet
        !            65: #define        IS_WATCHPOINT_TRAP(type, code)  ((type) == ALPHA_KENTRY_MM)
        !            66: #else
        !            67: #define        IS_WATCHPOINT_TRAP(type, code)  0
        !            68: #endif
        !            69:
        !            70: #define        FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int))
        !            71:
        !            72: #define SOFTWARE_SSTEP
        !            73: #define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
        !            74:
        !            75: /* Hack to skip GCC "unused" warnings. */
        !            76: #define        inst_trap_return(ins)   ((ins) & 0)             /* XXX */
        !            77: #define        inst_return(ins)        (((ins) & 0xfc000000) == 0x68000000)
        !            78:
        !            79: int    alpha_debug(unsigned long, unsigned long, unsigned long,
        !            80:     unsigned long, struct trapframe *);
        !            81: db_addr_t db_branch_taken(int, db_addr_t, db_regs_t *);
        !            82: boolean_t db_inst_branch(int);
        !            83: boolean_t db_inst_call(int);
        !            84: boolean_t db_inst_load(int);
        !            85: boolean_t db_inst_return(int);
        !            86: boolean_t db_inst_store(int);
        !            87: boolean_t db_inst_trap_return(int);
        !            88: boolean_t db_inst_unconditional_flow_transfer(int);
        !            89: u_long db_register_value(db_regs_t *, int);
        !            90: int    db_valid_breakpoint(db_addr_t);
        !            91: int    ddb_trap(unsigned long, unsigned long, unsigned long,
        !            92:     unsigned long, struct trapframe *);
        !            93: int    kdb_trap(int, int, db_regs_t *);
        !            94: db_addr_t next_instr_address(db_addr_t, int);
        !            95:
        !            96: #if 1
        !            97: /* Backwards compatibility until we switch all archs to use the db_ prefix */
        !            98: #define branch_taken(ins, pc, fun, regs) db_branch_taken((ins), (pc), (regs))
        !            99: #define inst_branch db_inst_branch
        !           100: #define inst_call db_inst_call
        !           101: #define inst_load db_inst_load
        !           102: #define inst_store db_inst_store
        !           103: #endif
        !           104:
        !           105: #endif /* _ALPHA_DB_MACHDEP_H_ */