projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 867e359b CM |
1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation, version 2. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but | |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef _ASM_TILE_STACK_H | |
| 16 | #define _ASM_TILE_STACK_H | |
| 17 | ||
| 18 | #include <linux/types.h> | |
| 19 | #include <linux/sched.h> | |
| b17b0153 IM |
20 | #include <linux/sched/debug.h> |
| 21 | ||
| 867e359b | 22 | #include <asm/backtrace.h> |
| 76c567fb | 23 | #include <asm/page.h> |
| 867e359b CM |
24 | #include <hv/hypervisor.h> |
| 25 | ||
| 26 | /* Everything we need to keep track of a backtrace iteration */ | |
| 27 | struct KBacktraceIterator { | |
| 28 | BacktraceIterator it; | |
| 29 | struct task_struct *task; /* task we are backtracing */ | |
| 867e359b CM |
30 | int end; /* iteration complete. */ |
| 31 | int new_context; /* new context is starting */ | |
| 32 | int profile; /* profiling, so stop on async intrpt */ | |
| 33 | int verbose; /* printk extra info (don't want to | |
| 34 | * do this for profiling) */ | |
| 35 | int is_current; /* backtracing current task */ | |
| 36 | }; | |
| 37 | ||
| 38 | /* Iteration methods for kernel backtraces */ | |
| 39 | ||
| 40 | /* | |
| 41 | * Initialize a KBacktraceIterator from a task_struct, and optionally from | |
| 42 | * a set of registers. If the registers are omitted, the process is | |
| 43 | * assumed to be descheduled, and registers are read from the process's | |
| 44 | * thread_struct and stack. "verbose" means to printk some additional | |
| 45 | * information about fault handlers as we pass them on the stack. | |
| 46 | */ | |
| 47 | extern void KBacktraceIterator_init(struct KBacktraceIterator *kbt, | |
| 48 | struct task_struct *, struct pt_regs *); | |
| 49 | ||
| 50 | /* Initialize iterator based on current stack. */ | |
| 51 | extern void KBacktraceIterator_init_current(struct KBacktraceIterator *kbt); | |
| 52 | ||
| 0707ad30 CM |
53 | /* Helper method for above. */ |
| 54 | extern void _KBacktraceIterator_init_current(struct KBacktraceIterator *kbt, | |
| 55 | ulong pc, ulong lr, ulong sp, ulong r52); | |
| 56 | ||
| 867e359b CM |
57 | /* No more frames? */ |
| 58 | extern int KBacktraceIterator_end(struct KBacktraceIterator *kbt); | |
| 59 | ||
| 60 | /* Advance to the next frame. */ | |
| 61 | extern void KBacktraceIterator_next(struct KBacktraceIterator *kbt); | |
| 62 | ||
| 47ad7b9b CM |
63 | /* Dump just the contents of the pt_regs structure. */ |
| 64 | extern void tile_show_regs(struct pt_regs *); | |
| 65 | ||
| 867e359b CM |
66 | /* |
| 67 | * Dump stack given complete register info. Use only from the | |
| 68 | * architecture-specific code; show_stack() | |
| 47ad7b9b | 69 | * and dump_stack() are architecture-independent entry points. |
| 867e359b | 70 | */ |
| 47ad7b9b | 71 | extern void tile_show_stack(struct KBacktraceIterator *); |
| 867e359b CM |
72 | |
| 73 | #endif /* _ASM_TILE_STACK_H */ |