diff options
Diffstat (limited to 'kernel/debug/debug_core.h')
| -rw-r--r-- | kernel/debug/debug_core.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/kernel/debug/debug_core.h b/kernel/debug/debug_core.h new file mode 100644 index 000000000000..c5d753d80f67 --- /dev/null +++ b/kernel/debug/debug_core.h | |||
| @@ -0,0 +1,81 @@ | |||
| 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; | ||
| 41 | int ret_state; | ||
| 42 | int irq_depth; | ||
| 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); | ||
| 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; | ||
| 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 | |||
| 67 | /* gdbstub functions used for kdb <-> gdbstub transition */ | ||
| 68 | extern int gdbstub_state(struct kgdb_state *ks, char *cmd); | ||
| 69 | extern int dbg_kdb_mode; | ||
| 70 | |||
| 71 | #ifdef CONFIG_KGDB_KDB | ||
| 72 | extern int kdb_stub(struct kgdb_state *ks); | ||
| 73 | extern int kdb_parse(const char *cmdstr); | ||
| 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 | |||
| 81 | #endif /* _DEBUG_CORE_H_ */ | ||