projects / deliverable / linux.git / blame
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| 2b144498 SD |
1 | #ifndef _ASM_UPROBES_H |
| 2 | #define _ASM_UPROBES_H | |
| 3 | /* | |
| 7b2d81d4 | 4 | * User-space Probes (UProbes) for x86 |
| 2b144498 SD |
5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 19 | * | |
| 20 | * Copyright (C) IBM Corporation, 2008-2011 | |
| 21 | * Authors: | |
| 22 | * Srikar Dronamraju | |
| 23 | * Jim Keniston | |
| 24 | */ | |
| 25 | ||
| 0326f5a9 SD |
26 | #include <linux/notifier.h> |
| 27 | ||
| 2b144498 | 28 | typedef u8 uprobe_opcode_t; |
| 2b144498 | 29 | |
| 7b2d81d4 | 30 | #define MAX_UINSN_BYTES 16 |
| 900771a4 | 31 | #define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */ |
| 7b2d81d4 | 32 | |
| 5cb4ac3a SD |
33 | #define UPROBE_SWBP_INSN 0xcc |
| 34 | #define UPROBE_SWBP_INSN_SIZE 1 | |
| 2b144498 | 35 | |
| 3ff54efd | 36 | struct arch_uprobe { |
| 7b2d81d4 | 37 | u16 fixups; |
| 3ff54efd | 38 | u8 insn[MAX_UINSN_BYTES]; |
| 2b144498 | 39 | #ifdef CONFIG_X86_64 |
| 7b2d81d4 | 40 | unsigned long rip_rela_target_address; |
| 2b144498 SD |
41 | #endif |
| 42 | }; | |
| 43 | ||
| 0326f5a9 | 44 | struct arch_uprobe_task { |
| 0326f5a9 SD |
45 | #ifdef CONFIG_X86_64 |
| 46 | unsigned long saved_scratch_register; | |
| 47 | #endif | |
| baedbf02 | 48 | unsigned int saved_trap_nr; |
| 3a4664aa | 49 | unsigned int saved_tf; |
| 0326f5a9 SD |
50 | }; |
| 51 | ||
| 7eb9ba5e | 52 | extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); |
| 0326f5a9 SD |
53 | extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); |
| 54 | extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); | |
| 55 | extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); | |
| 56 | extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); | |
| 57 | extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); | |
| 2b144498 | 58 | #endif /* _ASM_UPROBES_H */ |