/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _ASM_UPROBES_H #define _ASM_UPROBES_H /* * User-space Probes (UProbes) for sparc * * Copyright (C) 2013 Oracle, Inc. * * Authors: * Jose E. Marchesi <jose.marchesi@oracle.com> * Eric Saint Etienne <eric.saint.etienne@oracle.com> */ typedef u32 uprobe_opcode_t; #define MAX_UINSN_BYTES 4 #define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) #define UPROBE_SWBP_INSN_SIZE 4 #define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ #define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ #define ANNUL_BIT (1 << 29) struct arch_uprobe { union { u8 insn[MAX_UINSN_BYTES]; u32 ixol; }; }; struct arch_uprobe_task { u64 saved_tpc; u64 saved_tnpc; }; struct task_struct; struct notifier_block; extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); #endif /* _ASM_UPROBES_H */