projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 53197fc4 JW |
1 | /* |
| 2 | * Created by: Jason Wessel <[email protected]> | |
| 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; | |
| 8daaa5f8 | 29 | atomic_t *send_ready; |
| 53197fc4 JW |
30 | }; |
| 31 | ||
| 32 | /* Exception state values */ | |
| 33 | #define DCPU_WANT_MASTER 0x1 /* Waiting to become a master kgdb cpu */ | |
| 34 | #define DCPU_NEXT_MASTER 0x2 /* Transition from one master cpu to another */ | |
| 35 | #define DCPU_IS_SLAVE 0x4 /* Slave cpu enter exception */ | |
| 2277b492 | 36 | #define DCPU_WANT_BT 0x8 /* Slave cpu should backtrace then clear flag */ |
| 53197fc4 JW |
37 | |
| 38 | struct debuggerinfo_struct { | |
| 39 | void *debuggerinfo; | |
| 40 | struct task_struct *task; | |
| 41 | int exception_state; | |
| dcc78711 JW |
42 | int ret_state; |
| 43 | int irq_depth; | |
| dfee3a7b | 44 | int enter_kgdb; |
| 87b09592 | 45 | bool rounding_up; |
| 53197fc4 JW |
46 | }; |
| 47 | ||
| 48 | extern struct debuggerinfo_struct kgdb_info[]; | |
| 49 | ||
| 50 | /* kernel debug core break point routines */ | |
| 51 | extern int dbg_remove_all_break(void); | |
| 52 | extern int dbg_set_sw_break(unsigned long addr); | |
| 53 | extern int dbg_remove_sw_break(unsigned long addr); | |
| 54 | extern int dbg_activate_sw_breakpoints(void); | |
| dcc78711 JW |
55 | extern int dbg_deactivate_sw_breakpoints(void); |
| 56 | ||
| 57 | /* polled character access to i/o module */ | |
| 58 | extern int dbg_io_get_char(void); | |
| 59 | ||
| 60 | /* stub return value for switching between the gdbstub and kdb */ | |
| 61 | #define DBG_PASS_EVENT -12345 | |
| 62 | /* Switch from one cpu to another */ | |
| 63 | #define DBG_SWITCH_CPU_EVENT -123456 | |
| 64 | extern int dbg_switch_cpu; | |
| 53197fc4 JW |
65 | |
| 66 | /* gdbstub interface functions */ | |
| 67 | extern int gdb_serial_stub(struct kgdb_state *ks); | |
| 68 | extern void gdbstub_msg_write(const char *s, int len); | |
| 69 | ||
| dcc78711 JW |
70 | /* gdbstub functions used for kdb <-> gdbstub transition */ |
| 71 | extern int gdbstub_state(struct kgdb_state *ks, char *cmd); | |
| a0de055c | 72 | extern int dbg_kdb_mode; |
| dcc78711 JW |
73 | |
| 74 | #ifdef CONFIG_KGDB_KDB | |
| 75 | extern int kdb_stub(struct kgdb_state *ks); | |
| a0de055c | 76 | extern int kdb_parse(const char *cmdstr); |
| 00370b8f MK |
77 | extern int kdb_common_init_state(struct kgdb_state *ks); |
| 78 | extern int kdb_common_deinit_state(void); | |
| 2277b492 | 79 | extern void kdb_dump_stack_on_cpu(int cpu); |
| dcc78711 JW |
80 | #else /* ! CONFIG_KGDB_KDB */ |
| 81 | static inline int kdb_stub(struct kgdb_state *ks) | |
| 82 | { | |
| 83 | return DBG_PASS_EVENT; | |
| 84 | } | |
| 85 | #endif /* CONFIG_KGDB_KDB */ | |
| 86 | ||
| 53197fc4 | 87 | #endif /* _DEBUG_CORE_H_ */ |