Annotation of sys/arch/sparc64/include/db_machdep.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: db_machdep.h,v 1.9 2005/01/04 21:14:35 espie Exp $ */
! 2: /* $NetBSD: db_machdep.h,v 1.12 2001/07/07 15:16:13 eeh 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: #include <uvm/uvm_extern.h>
! 38:
! 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: struct trapstate {
! 50: int64_t tstate;
! 51: int64_t tpc;
! 52: int64_t tnpc;
! 53: int64_t tt;
! 54: };
! 55: #if 1
! 56: typedef struct {
! 57: struct trapframe64 ddb_tf;
! 58: struct frame64 ddb_fr;
! 59: struct trapstate ddb_ts[5];
! 60: int ddb_tl;
! 61: struct fpstate64 ddb_fpstate;
! 62: } db_regs_t;
! 63: #else
! 64: typedef struct db_regs {
! 65: struct trapregs dbr_traps[4];
! 66: int dbr_y;
! 67: char dbr_tl;
! 68: char dbr_canrestore;
! 69: char dbr_cansave;
! 70: char dbr_cleanwin;
! 71: char dbr_cwp;
! 72: char dbr_wstate;
! 73: int64_t dbr_g[8];
! 74: int64_t dbr_ag[8];
! 75: int64_t dbr_ig[8];
! 76: int64_t dbr_mg[8];
! 77: int64_t dbr_out[8];
! 78: int64_t dbr_local[8];
! 79: int64_t dbr_in[8];
! 80: } db_regs_t;
! 81: #endif
! 82:
! 83: extern db_regs_t ddb_regs; /* register state */
! 84: #define DDB_REGS (&ddb_regs)
! 85: #define DDB_TF (&ddb_regs.ddb_tf)
! 86: #define DDB_FR (&ddb_regs.ddb_fr)
! 87: #define DDB_FP (&ddb_regs.ddb_fpstate)
! 88:
! 89: #define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc)
! 90: #define SET_PC_REGS(regs, value) (regs)->ddb_tf.tf_pc = (int32_t)(value)
! 91: #define PC_ADVANCE(regs) do { \
! 92: vaddr_t n = (regs)->ddb_tf.tf_npc; \
! 93: (regs)->ddb_tf.tf_pc = n; \
! 94: (regs)->ddb_tf.tf_npc = n + 4; \
! 95: } while(0)
! 96:
! 97: #define BKPT_INST 0x91d02001 /* breakpoint instruction */
! 98: #define BKPT_SIZE (4) /* size of breakpoint inst */
! 99: #define BKPT_SET(inst) (BKPT_INST)
! 100:
! 101: #define IS_BREAKPOINT_TRAP(type, code) \
! 102: ((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
! 103: #define IS_WATCHPOINT_TRAP(type, code) \
! 104: ((type) ==T_PA_WATCHPT || (type) == T_VA_WATCHPT)
! 105:
! 106: /*
! 107: * Sparc cpus have no hardware single-step.
! 108: */
! 109: #define SOFTWARE_SSTEP
! 110:
! 111: boolean_t db_inst_trap_return(int inst);
! 112: boolean_t db_inst_return(int inst);
! 113: boolean_t db_inst_call(int inst);
! 114: boolean_t db_inst_branch(int inst);
! 115: int db_inst_load(int inst);
! 116: int db_inst_store(int inst);
! 117: boolean_t db_inst_unconditional_flow_transfer(int inst);
! 118: db_addr_t db_branch_taken(int inst, db_addr_t pc, db_regs_t *regs);
! 119: void db_machine_init(void);
! 120:
! 121: #define inst_trap_return(ins) db_inst_trap_return(ins)
! 122: #define inst_return(ins) db_inst_return(ins)
! 123: #define inst_call(ins) db_inst_call(ins)
! 124: #define inst_branch(ins) db_inst_branch(ins)
! 125: #define inst_load(ins) db_inst_load(ins)
! 126: #define inst_store(ins) db_inst_store(ins)
! 127: #define inst_unconditional_flow_transfer(ins) \
! 128: db_inst_unconditional_flow_transfer(ins)
! 129: #define branch_taken(ins, pc, fun, regs) \
! 130: db_branch_taken((ins), (pc), (regs))
! 131:
! 132: /* see note in db_interface.c about reversed breakpoint addrs */
! 133: #define next_instr_address(pc, bd) \
! 134: ((bd) ? (pc) : ddb_regs.ddb_tf.tf_npc)
! 135:
! 136: #define DB_MACHINE_COMMANDS
! 137:
! 138: void db_machine_init(void);
! 139: int kdb_trap(int, struct trapframe64 *);
! 140:
! 141: /*
! 142: * We will use elf symbols in DDB when they work.
! 143: */
! 144: #define DB_ELF_SYMBOLS
! 145: #define DB_ELFSIZE 64
! 146:
! 147: /*
! 148: * KGDB definitions
! 149: */
! 150: typedef u_long kgdb_reg_t;
! 151: #define KGDB_NUMREGS 72
! 152: #define KGDB_BUFLEN 1024
! 153:
! 154: #endif /* _SPARC_DB_MACHDEP_H_ */
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