git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 53197fc4 JW |
1 | /* |
| 2 | * Created by: Jason Wessel <jason.wessel@windriver.com> | |
| 3 | * | |
| 4 | * Copyright (c) 2009 Wind River Systems, Inc. All Rights Reserved. | |
| 5 | * | |
| 6 | * This file is licensed under the terms of the GNU General Public | |
| 7 | * License version 2. This program is licensed "as is" without any | |
| 8 | * warranty of any kind, whether express or implied. | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _DEBUG_CORE_H_ | |
| 12 | #define _DEBUG_CORE_H_ | |
| 13 | /* | |
| 14 | * These are the private implementation headers between the kernel | |
| 15 | * debugger core and the debugger front end code. | |
| 16 | */ | |
| 17 | ||
| 18 | /* kernel debug core data structures */ | |
| 19 | struct kgdb_state { | |
| 20 | int ex_vector; | |
| 21 | int signo; | |
| 22 | int err_code; | |
| 23 | int cpu; | |
| 24 | int pass_exception; | |
| 25 | unsigned long thr_query; | |
| 26 | unsigned long threadid; | |
| 27 | long kgdb_usethreadid; | |
| 28 | struct pt_regs *linux_regs; | |
| 29 | }; | |
| 30 | ||
| 31 | /* Exception state values */ | |
| 32 | #define DCPU_WANT_MASTER 0x1 /* Waiting to become a master kgdb cpu */ | |
| 33 | #define DCPU_NEXT_MASTER 0x2 /* Transition from one master cpu to another */ | |
| 34 | #define DCPU_IS_SLAVE 0x4 /* Slave cpu enter exception */ | |
| 35 | #define DCPU_SSTEP 0x8 /* CPU is single stepping */ | |
| 36 | ||
| 37 | struct debuggerinfo_struct { | |
| 38 | void *debuggerinfo; | |
| 39 | struct task_struct *task; | |
| 40 | int exception_state; | |
| dcc78711 JW |
41 | int ret_state; |
| 42 | int irq_depth; | |
| 53197fc4 JW |
43 | }; |
| 44 | ||
| 45 | extern struct debuggerinfo_struct kgdb_info[]; | |
| 46 | ||
| 47 | /* kernel debug core break point routines */ | |
| 48 | extern int dbg_remove_all_break(void); | |
| 49 | extern int dbg_set_sw_break(unsigned long addr); | |
| 50 | extern int dbg_remove_sw_break(unsigned long addr); | |
| 51 | extern int dbg_activate_sw_breakpoints(void); | |
| dcc78711 JW |
52 | extern int dbg_deactivate_sw_breakpoints(void); |
| 53 | ||
| 54 | /* polled character access to i/o module */ | |
| 55 | extern int dbg_io_get_char(void); | |
| 56 | ||
| 57 | /* stub return value for switching between the gdbstub and kdb */ | |
| 58 | #define DBG_PASS_EVENT -12345 | |
| 59 | /* Switch from one cpu to another */ | |
| 60 | #define DBG_SWITCH_CPU_EVENT -123456 | |
| 61 | extern int dbg_switch_cpu; | |
| 53197fc4 JW |
62 | |
| 63 | /* gdbstub interface functions */ | |
| 64 | extern int gdb_serial_stub(struct kgdb_state *ks); | |
| 65 | extern void gdbstub_msg_write(const char *s, int len); | |
| 66 | ||
| dcc78711 JW |
67 | /* gdbstub functions used for kdb <-> gdbstub transition */ |
| 68 | extern int gdbstub_state(struct kgdb_state *ks, char *cmd); | |
| a0de055c | 69 | extern int dbg_kdb_mode; |
| dcc78711 JW |
70 | |
| 71 | #ifdef CONFIG_KGDB_KDB | |
| 72 | extern int kdb_stub(struct kgdb_state *ks); | |
| a0de055c | 73 | extern int kdb_parse(const char *cmdstr); |
| dcc78711 JW |
74 | #else /* ! CONFIG_KGDB_KDB */ |
| 75 | static inline int kdb_stub(struct kgdb_state *ks) | |
| 76 | { | |
| 77 | return DBG_PASS_EVENT; | |
| 78 | } | |
| 79 | #endif /* CONFIG_KGDB_KDB */ | |
| 80 | ||
| 53197fc4 | 81 | #endif /* _DEBUG_CORE_H_ */ |