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Diffstat (limited to 'arch/arm/include/asm/uprobes.h')
| -rw-r--r-- | arch/arm/include/asm/uprobes.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/include/asm/uprobes.h b/arch/arm/include/asm/uprobes.h new file mode 100644 index 0000000000..6a61b28749 --- /dev/null +++ b/arch/arm/include/asm/uprobes.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2012 Rabin Vincent <rabin at rab.in> + */ + +#ifndef _ASM_UPROBES_H +#define _ASM_UPROBES_H + +#include <asm/probes.h> +#include <asm/opcodes.h> + +typedef u32 uprobe_opcode_t; + +#define MAX_UINSN_BYTES 4 +#define UPROBE_XOL_SLOT_BYTES 64 + +#define UPROBE_SWBP_ARM_INSN 0xe7f001f9 +#define UPROBE_SS_ARM_INSN 0xe7f001fa +#define UPROBE_SWBP_INSN __opcode_to_mem_arm(UPROBE_SWBP_ARM_INSN) +#define UPROBE_SWBP_INSN_SIZE 4 + +struct arch_uprobe_task { + u32 backup; + unsigned long saved_trap_no; +}; + +struct arch_uprobe { + u8 insn[MAX_UINSN_BYTES]; + unsigned long ixol[2]; + uprobe_opcode_t bpinsn; + bool simulate; + u32 pcreg; + void (*prehandler)(struct arch_uprobe *auprobe, + struct arch_uprobe_task *autask, + struct pt_regs *regs); + void (*posthandler)(struct arch_uprobe *auprobe, + struct arch_uprobe_task *autask, + struct pt_regs *regs); + struct arch_probes_insn asi; +}; + +#endif |