diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/kprobes_32.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/kprobes_32.h')
-rw-r--r-- | include/asm-x86/kprobes_32.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/include/asm-x86/kprobes_32.h b/include/asm-x86/kprobes_32.h new file mode 100644 index 000000000000..06f7303c30ca --- /dev/null +++ b/include/asm-x86/kprobes_32.h | |||
@@ -0,0 +1,92 @@ | |||
1 | #ifndef _ASM_KPROBES_H | ||
2 | #define _ASM_KPROBES_H | ||
3 | /* | ||
4 | * Kernel Probes (KProbes) | ||
5 | * include/asm-i386/kprobes.h | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
20 | * | ||
21 | * Copyright (C) IBM Corporation, 2002, 2004 | ||
22 | * | ||
23 | * 2002-Oct Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel | ||
24 | * Probes initial implementation ( includes suggestions from | ||
25 | * Rusty Russell). | ||
26 | */ | ||
27 | #include <linux/types.h> | ||
28 | #include <linux/ptrace.h> | ||
29 | |||
30 | #define __ARCH_WANT_KPROBES_INSN_SLOT | ||
31 | |||
32 | struct kprobe; | ||
33 | struct pt_regs; | ||
34 | |||
35 | typedef u8 kprobe_opcode_t; | ||
36 | #define BREAKPOINT_INSTRUCTION 0xcc | ||
37 | #define RELATIVEJUMP_INSTRUCTION 0xe9 | ||
38 | #define MAX_INSN_SIZE 16 | ||
39 | #define MAX_STACK_SIZE 64 | ||
40 | #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ | ||
41 | (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ | ||
42 | ? (MAX_STACK_SIZE) \ | ||
43 | : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) | ||
44 | |||
45 | #define ARCH_SUPPORTS_KRETPROBES | ||
46 | #define ARCH_INACTIVE_KPROBE_COUNT 0 | ||
47 | #define flush_insn_slot(p) do { } while (0) | ||
48 | |||
49 | void arch_remove_kprobe(struct kprobe *p); | ||
50 | void kretprobe_trampoline(void); | ||
51 | |||
52 | /* Architecture specific copy of original instruction*/ | ||
53 | struct arch_specific_insn { | ||
54 | /* copy of the original instruction */ | ||
55 | kprobe_opcode_t *insn; | ||
56 | /* | ||
57 | * If this flag is not 0, this kprobe can be boost when its | ||
58 | * post_handler and break_handler is not set. | ||
59 | */ | ||
60 | int boostable; | ||
61 | }; | ||
62 | |||
63 | struct prev_kprobe { | ||
64 | struct kprobe *kp; | ||
65 | unsigned long status; | ||
66 | unsigned long old_eflags; | ||
67 | unsigned long saved_eflags; | ||
68 | }; | ||
69 | |||
70 | /* per-cpu kprobe control block */ | ||
71 | struct kprobe_ctlblk { | ||
72 | unsigned long kprobe_status; | ||
73 | unsigned long kprobe_old_eflags; | ||
74 | unsigned long kprobe_saved_eflags; | ||
75 | long *jprobe_saved_esp; | ||
76 | struct pt_regs jprobe_saved_regs; | ||
77 | kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; | ||
78 | struct prev_kprobe prev_kprobe; | ||
79 | }; | ||
80 | |||
81 | /* trap3/1 are intr gates for kprobes. So, restore the status of IF, | ||
82 | * if necessary, before executing the original int3/1 (trap) handler. | ||
83 | */ | ||
84 | static inline void restore_interrupts(struct pt_regs *regs) | ||
85 | { | ||
86 | if (regs->eflags & IF_MASK) | ||
87 | local_irq_enable(); | ||
88 | } | ||
89 | |||
90 | extern int kprobe_exceptions_notify(struct notifier_block *self, | ||
91 | unsigned long val, void *data); | ||
92 | #endif /* _ASM_KPROBES_H */ | ||