/* * Created by: Jason Wessel <jason.wessel@windriver.com> * * Copyright (c) 2009 Wind River Systems, Inc.  All Rights Reserved. * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #ifndef _DEBUG_CORE_H_#define _DEBUG_CORE_H_/* * These are the private implementation headers between the kernel * debugger core and the debugger front end code. */ /* kernel debug core data structures */struct kgdb_state {	int			ex_vector;	int			signo;	int			err_code;	int			cpu;	int			pass_exception;	unsigned long		thr_query;	unsigned long		threadid;	long			kgdb_usethreadid;	struct pt_regs		*linux_regs;	atomic_t		*send_ready;}; /* Exception state values */#define DCPU_WANT_MASTER 0x1 /* Waiting to become a master kgdb cpu */#define DCPU_NEXT_MASTER 0x2 /* Transition from one master cpu to another */#define DCPU_IS_SLAVE    0x4 /* Slave cpu enter exception */#define DCPU_SSTEP       0x8 /* CPU is single stepping */ struct debuggerinfo_struct {	void			*debuggerinfo;	struct task_struct	*task;	int			exception_state;	int			ret_state;	int			irq_depth;	int			enter_kgdb;}; extern struct debuggerinfo_struct kgdb_info[]; /* kernel debug core break point routines */extern int dbg_remove_all_break(void);extern int dbg_set_sw_break(unsigned long addr);extern int dbg_remove_sw_break(unsigned long addr);extern int dbg_activate_sw_breakpoints(void);extern int dbg_deactivate_sw_breakpoints(void); /* polled character access to i/o module */extern int dbg_io_get_char(void); /* stub return value for switching between the gdbstub and kdb */#define DBG_PASS_EVENT -12345/* Switch from one cpu to another */#define DBG_SWITCH_CPU_EVENT -123456extern int dbg_switch_cpu; /* gdbstub interface functions */extern int gdb_serial_stub(struct kgdb_state *ks);extern void gdbstub_msg_write(const char *s, int len); /* gdbstub functions used for kdb <-> gdbstub transition */extern int gdbstub_state(struct kgdb_state *ks, char *cmd);extern int dbg_kdb_mode; #ifdef CONFIG_KGDB_KDBextern int kdb_stub(struct kgdb_state *ks);extern int kdb_parse(const char *cmdstr);extern int kdb_common_init_state(struct kgdb_state *ks);extern int kdb_common_deinit_state(void);#else /* ! CONFIG_KGDB_KDB */static inline int kdb_stub(struct kgdb_state *ks){	return DBG_PASS_EVENT;}#endif /* CONFIG_KGDB_KDB */ #endif /* _DEBUG_CORE_H_ */