/*- * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. * * from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04 * $FreeBSD$ */ #ifndef _MACHINE_DB_MACHDEP_H_ #define _MACHINE_DB_MACHDEP_H_ #include <machine/frame.h> #include <machine/trap.h> #include <machine/armreg.h> #define T_BREAKPOINT (1) #define T_WATCHPOINT (2) typedef vm_offset_t db_addr_t; typedef int db_expr_t; #define PC_REGS() ((db_addr_t)kdb_thrctx->pcb_regs.sf_pc) #define BKPT_INST (KERNEL_BREAKPOINT) #define BKPT_SIZE (INSN_SIZE) #define BKPT_SET(inst) (BKPT_INST) #define BKPT_SKIP do { \ kdb_frame->tf_pc += BKPT_SIZE; \ } while (0) #if __ARM_ARCH >= 6 #define db_clear_single_step kdb_cpu_clear_singlestep #define db_set_single_step kdb_cpu_set_singlestep #define db_pc_is_singlestep kdb_cpu_pc_is_singlestep #else #define SOFTWARE_SSTEP 1 #endif #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) #define IS_WATCHPOINT_TRAP(type, code) (type == T_WATCHPOINT) #define inst_trap_return(ins) (0) /* ldmxx reg, {..., pc} 01800000 stack mode 000f0000 register 0000ffff register list */ /* mov pc, reg 0000000f register */ #define inst_return(ins) (((ins) & 0x0e108000) == 0x08108000 || \ ((ins) & 0x0ff0fff0) == 0x01a0f000 || \ ((ins) & 0x0ffffff0) == 0x012fff10) /* bx */ /* bl ... 00ffffff offset>>2 */ #define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000) /* b ... 00ffffff offset>>2 */ /* ldr pc, [pc, reg, lsl #2] 0000000f register */ #define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000 || \ ((ins) & 0x0fdffff0) == 0x079ff100 || \ ((ins) & 0x0cd0f000) == 0x0490f000 || \ ((ins) & 0x0ffffff0) == 0x012fff30 || /* blx */ \ ((ins) & 0x0de0f000) == 0x0080f000) #define inst_load(ins) (0) #define inst_store(ins) (0) #define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + INSN_SIZE)) #define DB_ELFSIZE 32 int db_validate_address(vm_offset_t); u_int branch_taken (u_int insn, db_addr_t pc); #endif /* !_MACHINE_DB_MACHDEP_H_ */ |