diff options
Diffstat (limited to 'sys/arch/arm/include/db_machdep.h')
| -rw-r--r-- | sys/arch/arm/include/db_machdep.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/sys/arch/arm/include/db_machdep.h b/sys/arch/arm/include/db_machdep.h new file mode 100644 index 00000000000..073bd60d296 --- /dev/null +++ b/sys/arch/arm/include/db_machdep.h @@ -0,0 +1,117 @@ +/* $OpenBSD: db_machdep.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */ +/* $NetBSD: db_machdep.h,v 1.5 2001/11/22 18:00:00 thorpej Exp $ */ + +/* + * Copyright (c) 1996 Scott K Stevens + * + * 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. + */ + +#ifndef _ARM_DB_MACHDEP_H_ +#define _ARM_DB_MACHDEP_H_ + +/* + * Machine-dependent defines for new kernel debugger. + */ + +#include <uvm/uvm_extern.h> +#include <arm/armreg.h> +#include <machine/frame.h> +#include <machine/trap.h> + +/* end of mangling */ + +typedef vaddr_t db_addr_t; /* address - unsigned */ +typedef long db_expr_t; /* expression - signed */ + +typedef trapframe_t db_regs_t; + +extern db_regs_t ddb_regs; /* register state */ +#define DDB_REGS (&ddb_regs) + +#ifdef __PROG26 +#define PC_REGS(regs) ((db_addr_t)(regs)->tf_r15 & R15_PC) +#define PC_ADVANCE(regs) ((regs)->tf_r15 += 4) +#else +#define PC_REGS(regs) ((db_addr_t)(regs)->tf_pc) +#endif + +#define BKPT_INST (KERNEL_BREAKPOINT) /* breakpoint instruction */ +#define BKPT_SIZE (INSN_SIZE) /* size of breakpoint inst */ +#define BKPT_SET(inst) (BKPT_INST) + +/*#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_pc -= BKPT_SIZE)*/ + +#define T_BREAKPOINT (1) + +#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT) +#define IS_WATCHPOINT_TRAP(type, code) (0) + +#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) +/* 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) +#define inst_load(ins) (0) +#define inst_store(ins) (0) +#define inst_unconditional_flow_transfer(ins) \ + ((((ins) & INSN_COND_MASK) == INSN_COND_AL) && \ + (inst_branch(ins) || inst_call(ins) || inst_return(ins))) + +#define getreg_val (0) +#define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + INSN_SIZE)) + +#define DB_MACHINE_COMMANDS + +#define SOFTWARE_SSTEP + +db_addr_t db_branch_taken(u_int inst, db_addr_t pc, db_regs_t *regs); +int kdb_trap __P((int, db_regs_t *)); +void db_machine_init __P((void)); + +#define branch_taken(ins, pc, fun, regs) \ + db_branch_taken((ins), (pc), (regs)) + +#define DB_ELF_SYMBOLS +#define DB_ELFSIZE 32 +#define DB_NO_AOUT + +void db_show_panic_cmd __P((db_expr_t, int, db_expr_t, char *)); +void db_show_frame_cmd __P((db_expr_t, int, db_expr_t, char *)); + +#endif /* _ARM_DB_MACHDEP_H_ */ |