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Annotation of sys/arch/hppa64/include/db_machdep.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: db_machdep.h,v 1.1 2005/04/01 10:40:48 mickey Exp $   */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2005 Michael Shalayeff
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Permission to use, copy, modify, and distribute this software for any
        !             8:  * purpose with or without fee is hereby granted, provided that the above
        !             9:  * copyright notice and this permission notice appear in all copies.
        !            10:  *
        !            11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            15:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
        !            16:  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
        !            17:  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            18:  */
        !            19:
        !            20: #ifndef        _MACHINE_DB_MACHDEP_H_
        !            21: #define        _MACHINE_DB_MACHDEP_H_
        !            22:
        !            23: #include <uvm/uvm_extern.h>
        !            24:
        !            25: #define        DB_ELF_SYMBOLS
        !            26: #define        DB_ELFSIZE      64
        !            27:
        !            28: /* types the generic ddb module needs */
        !            29: typedef        vaddr_t db_addr_t;
        !            30: typedef        long db_expr_t;
        !            31:
        !            32: typedef struct trapframe db_regs_t;
        !            33: extern db_regs_t       ddb_regs;
        !            34: #define        DDB_REGS        (&ddb_regs)
        !            35:
        !            36: #define        PC_REGS(regs)   ((db_addr_t)(regs)->tf_iioq[0])
        !            37: #define        SET_PC_REGS(r,pc) ((r)->tf_iioq[0] = (pc), (r)->tf_iioq[1] = (pc) + 4)
        !            38:
        !            39: /* Breakpoint related definitions */
        !            40: #define        BKPT_INST       0x00010000      /* break 0,8 */
        !            41: #define        BKPT_SIZE       sizeof(int)
        !            42: #define        BKPT_SET(inst)  BKPT_INST
        !            43:
        !            44: #define        IS_BREAKPOINT_TRAP(type, code) ((type) == T_IBREAK)
        !            45: #define        IS_WATCHPOINT_TRAP(type, code) ((type) == T_DBREAK)
        !            46:
        !            47: #define        FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_iioq[0] -= sizeof(int))
        !            48:
        !            49: #define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
        !            50:
        !            51: /* TODO 64bit insns */
        !            52:
        !            53: static __inline int inst_call(u_int ins) {
        !            54:        return (ins & 0xfc00e000) == 0xe8000000 ||
        !            55:               (ins & 0xfc00e000) == 0xe8004000 ||
        !            56:               (ins & 0xfc000000) == 0xe4000000;
        !            57: }
        !            58: static __inline int inst_branch(u_int ins) {
        !            59:        return (ins & 0xf0000000) == 0xe0000000 ||
        !            60:               (ins & 0xf0000000) == 0xc0000000 ||
        !            61:               (ins & 0xf0000000) == 0xa0000000 ||
        !            62:               (ins & 0xf0000000) == 0x80000000;
        !            63: }
        !            64: static __inline int inst_load(u_int ins) {
        !            65:        return (ins & 0xf0000000) == 0x40000000 ||
        !            66:               (ins & 0xf4000200) == 0x24000000 ||
        !            67:               (ins & 0xfc000200) == 0x0c000000 ||
        !            68:               (ins & 0xfc001fc0) != 0x0c0011c0;
        !            69: }
        !            70: static __inline int inst_store(u_int ins) {
        !            71:        return (ins & 0xf0000000) == 0x60000000 ||      /* st */
        !            72:               (ins & 0xf4000200) == 0x24000200 ||      /* fst/cst */
        !            73:               (ins & 0xfc000200) == 0x0c000200 ||      /* stby */
        !            74:               (ins & 0xfc0003c0) == 0x0c0001c0;        /* ldcw */
        !            75: }
        !            76: static __inline int inst_return(u_int ins) {
        !            77:        return (ins & 0xfc00e000) == 0xe800c000 ||
        !            78:               (ins & 0xfc000000) == 0xe0000000;
        !            79: }
        !            80: static __inline int inst_trap_return(u_int ins)        {
        !            81:        return (ins & 0xfc001fc0) == 0x00000ca0;
        !            82: }
        !            83:
        !            84: #if 0
        !            85: #define db_clear_single_step(r)        ((r)->tf_flags &= ~(PSL_Z))
        !            86: #define db_set_single_step(r)  ((r)->tf_flags |= (PSL_Z))
        !            87: #else
        !            88: #define        SOFTWARE_SSTEP          1
        !            89: #define        SOFTWARE_SSTEP_EMUL     1
        !            90:
        !            91: static __inline db_addr_t
        !            92: next_instr_address(db_addr_t addr, int b) {
        !            93:        return (addr + 4);
        !            94: }
        !            95:
        !            96: #define        branch_taken(ins,pc,f,regs)     branch_taken1(ins, pc, regs)
        !            97: static __inline db_addr_t
        !            98: branch_taken1(int ins, db_addr_t pc, db_regs_t *regs) {
        !            99:        return (pc);
        !           100: }
        !           101:
        !           102: #endif
        !           103:
        !           104: int db_valid_breakpoint(db_addr_t);
        !           105: int kdb_trap(int, int, db_regs_t *);
        !           106:
        !           107: #endif /* _MACHINE_DB_MACHDEP_H_ */