Return to db_machdep.h CVS log

Up to [local] / sys / arch / arm / include

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

1.1       nbrk        1: /*     $OpenBSD: db_machdep.h,v 1.5 2005/04/19 15:23:34 miod Exp $     */
                      2: /*     $NetBSD: db_machdep.h,v 1.5 2001/11/22 18:00:00 thorpej Exp $   */
                      3:
                      4: /*
                      5:  * Copyright (c) 1996 Scott K Stevens
                      6:  *
                      7:  * Mach Operating System
                      8:  * Copyright (c) 1991,1990 Carnegie Mellon University
                      9:  * All Rights Reserved.
                     10:  *
                     11:  * Permission to use, copy, modify and distribute this software and its
                     12:  * documentation is hereby granted, provided that both the copyright
                     13:  * notice and this permission notice appear in all copies of the
                     14:  * software, derivative works or modified versions, and any portions
                     15:  * thereof, and that both notices appear in supporting documentation.
                     16:  *
                     17:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     18:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     19:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     20:  *
                     21:  * Carnegie Mellon requests users of this software to return to
                     22:  *
                     23:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     24:  *  School of Computer Science
                     25:  *  Carnegie Mellon University
                     26:  *  Pittsburgh PA 15213-3890
                     27:  *
                     28:  * any improvements or extensions that they make and grant Carnegie Mellon
                     29:  * the rights to redistribute these changes.
                     30:  */
                     31:
                     32: #ifndef        _ARM_DB_MACHDEP_H_
                     33: #define        _ARM_DB_MACHDEP_H_
                     34:
                     35: /*
                     36:  * Machine-dependent defines for new kernel debugger.
                     37:  */
                     38:
                     39: #include <uvm/uvm_extern.h>
                     40: #include <arm/armreg.h>
                     41: #include <machine/frame.h>
                     42: #include <machine/trap.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 trapframe_t db_regs_t;
                     50:
                     51: extern db_regs_t               ddb_regs;       /* register state */
                     52: #define        DDB_REGS        (&ddb_regs)
                     53:
                     54: #ifdef __PROG26
                     55: #define        PC_REGS(regs)   ((db_addr_t)(regs)->tf_r15 & R15_PC)
                     56: #define PC_ADVANCE(regs) ((regs)->tf_r15 += 4)
                     57: #else
                     58: #define        PC_REGS(regs)   ((db_addr_t)(regs)->tf_pc)
                     59: #define        SET_PC_REGS(regs, value)        (regs)->tf_pc = (register_t)(value)
                     60: #endif
                     61:
                     62: #define        BKPT_INST       (KERNEL_BREAKPOINT)     /* breakpoint instruction */
                     63: #define        BKPT_SIZE       (INSN_SIZE)             /* size of breakpoint inst */
                     64: #define        BKPT_SET(inst)  (BKPT_INST)
                     65:
                     66: /*#define FIXUP_PC_AFTER_BREAK(regs)   ((regs)->tf_pc -= BKPT_SIZE)*/
                     67:
                     68: #define T_BREAKPOINT                   (1)
                     69:
                     70: #define        IS_BREAKPOINT_TRAP(type, code)  ((type) == T_BREAKPOINT)
                     71: #define IS_WATCHPOINT_TRAP(type, code) (0)
                     72:
                     73: #define        inst_trap_return(ins)   (0)
                     74: /* ldmxx reg, {..., pc}
                     75:                                            01800000  stack mode
                     76:                                            000f0000  register
                     77:                                            0000ffff  register list */
                     78: /* mov pc, reg
                     79:                                            0000000f  register */
                     80: #define        inst_return(ins)        (((ins) & 0x0e108000) == 0x08108000 || \
                     81:                                 ((ins) & 0x0ff0fff0) == 0x01a0f000)
                     82: /* bl ...
                     83:                                            00ffffff  offset>>2 */
                     84: #define        inst_call(ins)          (((ins) & 0x0f000000) == 0x0b000000)
                     85: /* b ...
                     86:                                            00ffffff  offset>>2 */
                     87: /* ldr pc, [pc, reg, lsl #2]
                     88:                                            0000000f  register */
                     89: #define        inst_branch(ins)        (((ins) & 0x0f000000) == 0x0a000000 || \
                     90:                                 ((ins) & 0x0fdffff0) == 0x079ff100)
                     91: #define inst_load(ins)         (0)
                     92: #define inst_store(ins)                (0)
                     93: #define inst_unconditional_flow_transfer(ins)  \
                     94:        ((((ins) & INSN_COND_MASK) == INSN_COND_AL) && \
                     95:         (inst_branch(ins) || inst_call(ins) || inst_return(ins)))
                     96:
                     97: #define getreg_val                     (0)
                     98: #define next_instr_address(pc, bd)     ((bd) ? (pc) : ((pc) + INSN_SIZE))
                     99:
                    100: #define DB_MACHINE_COMMANDS
                    101:
                    102: #define SOFTWARE_SSTEP
                    103:
                    104: db_addr_t      db_branch_taken(u_int inst, db_addr_t pc, db_regs_t *regs);
                    105: int kdb_trap (int, db_regs_t *);
                    106: void db_machine_init (void);
                    107:
                    108: #define branch_taken(ins, pc, fun, regs) \
                    109:                                db_branch_taken((ins), (pc), (regs))
                    110:
                    111: #define DB_ELF_SYMBOLS
                    112: #define DB_ELFSIZE 32
                    113:
                    114: void db_show_frame_cmd (db_expr_t, int, db_expr_t, char *);
                    115:
                    116: #endif /* _ARM_DB_MACHDEP_H_ */