projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 3fa17c39 TL |
1 | /* |
| 2 | * arch/tile/include/asm/kprobes.h | |
| 3 | * | |
| 4 | * Copyright 2012 Tilera Corporation. All Rights Reserved. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation, version 2. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but | |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| 13 | * NON INFRINGEMENT. See the GNU General Public License for | |
| 14 | * more details. | |
| 15 | */ | |
| 16 | ||
| 17 | #ifndef _ASM_TILE_KPROBES_H | |
| 18 | #define _ASM_TILE_KPROBES_H | |
| 19 | ||
| 7d134b2c LR |
20 | #include <asm-generic/kprobes.h> |
| 21 | ||
| 22 | #ifdef CONFIG_KPROBES | |
| 23 | ||
| 3fa17c39 TL |
24 | #include <linux/types.h> |
| 25 | #include <linux/ptrace.h> | |
| 26 | #include <linux/percpu.h> | |
| 3fa17c39 TL |
27 | #include <arch/opcode.h> |
| 28 | ||
| 29 | #define __ARCH_WANT_KPROBES_INSN_SLOT | |
| 30 | #define MAX_INSN_SIZE 2 | |
| 31 | ||
| 32 | #define kretprobe_blacklist_size 0 | |
| 33 | ||
| 34 | typedef tile_bundle_bits kprobe_opcode_t; | |
| 35 | ||
| 36 | #define flush_insn_slot(p) \ | |
| 37 | flush_icache_range((unsigned long)p->addr, \ | |
| 38 | (unsigned long)p->addr + \ | |
| 39 | (MAX_INSN_SIZE * sizeof(kprobe_opcode_t))) | |
| 40 | ||
| 41 | struct kprobe; | |
| 42 | ||
| 43 | /* Architecture specific copy of original instruction. */ | |
| 44 | struct arch_specific_insn { | |
| 45 | kprobe_opcode_t *insn; | |
| 46 | }; | |
| 47 | ||
| 48 | struct prev_kprobe { | |
| 49 | struct kprobe *kp; | |
| 50 | unsigned long status; | |
| 51 | unsigned long saved_pc; | |
| 52 | }; | |
| 53 | ||
| 54 | #define MAX_JPROBES_STACK_SIZE 128 | |
| 55 | #define MAX_JPROBES_STACK_ADDR \ | |
| 56 | (((unsigned long)current_thread_info()) + THREAD_SIZE - 32 \ | |
| 57 | - sizeof(struct pt_regs)) | |
| 58 | ||
| 59 | #define MIN_JPROBES_STACK_SIZE(ADDR) \ | |
| 60 | ((((ADDR) + MAX_JPROBES_STACK_SIZE) > MAX_JPROBES_STACK_ADDR) \ | |
| 61 | ? MAX_JPROBES_STACK_ADDR - (ADDR) \ | |
| 62 | : MAX_JPROBES_STACK_SIZE) | |
| 63 | ||
| 64 | /* per-cpu kprobe control block. */ | |
| 65 | struct kprobe_ctlblk { | |
| 66 | unsigned long kprobe_status; | |
| 67 | unsigned long kprobe_saved_pc; | |
| 68 | unsigned long jprobe_saved_sp; | |
| 69 | struct prev_kprobe prev_kprobe; | |
| 70 | struct pt_regs jprobe_saved_regs; | |
| 71 | char jprobes_stack[MAX_JPROBES_STACK_SIZE]; | |
| 72 | }; | |
| 73 | ||
| 74 | extern tile_bundle_bits breakpoint2_insn; | |
| 75 | extern tile_bundle_bits breakpoint_insn; | |
| 76 | ||
| 77 | void arch_remove_kprobe(struct kprobe *); | |
| 78 | ||
| 79 | extern int kprobe_exceptions_notify(struct notifier_block *self, | |
| 80 | unsigned long val, void *data); | |
| 81 | ||
| 7d134b2c | 82 | #endif /* CONFIG_KPROBES */ |
| 3fa17c39 | 83 | #endif /* _ASM_TILE_KPROBES_H */ |