| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | #ifndef _ASM_UPROBES_H |
| 3 | #define _ASM_UPROBES_H |
| 4 | /* |
| 5 | * User-space Probes (UProbes) for sparc |
| 6 | * |
| 7 | * Copyright (C) 2013 Oracle, Inc. |
| 8 | * |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 9 | * Authors: |
| 10 | * Jose E. Marchesi <jose.marchesi@oracle.com> |
| 11 | * Eric Saint Etienne <eric.saint.etienne@oracle.com> |
| 12 | */ |
| 13 | |
| 14 | typedef u32 uprobe_opcode_t; |
| 15 | |
| 16 | #define MAX_UINSN_BYTES 4 |
| 17 | #define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) |
| 18 | |
| 19 | #define UPROBE_SWBP_INSN_SIZE 4 |
| 20 | #define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ |
| 21 | #define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ |
| 22 | |
| 23 | #define ANNUL_BIT (1 << 29) |
| 24 | |
| 25 | struct arch_uprobe { |
| 26 | union { |
| 27 | u8 insn[MAX_UINSN_BYTES]; |
| 28 | u32 ixol; |
| 29 | }; |
| 30 | }; |
| 31 | |
| 32 | struct arch_uprobe_task { |
| 33 | u64 saved_tpc; |
| 34 | u64 saved_tnpc; |
| 35 | }; |
| 36 | |
| 37 | struct task_struct; |
| 38 | struct notifier_block; |
| 39 | |
| 40 | extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); |
| 41 | extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); |
| 42 | extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); |
| 43 | extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); |
| 44 | extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); |
| 45 | extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); |
| 46 | |
| 47 | #endif /* _ASM_UPROBES_H */ |