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Diffstat (limited to '')
| -rw-r--r-- | arch/arm/include/asm/probes.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/include/asm/probes.h b/arch/arm/include/asm/probes.h new file mode 100644 index 000000000..ebbd9ec95 --- /dev/null +++ b/arch/arm/include/asm/probes.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * arch/arm/include/asm/probes.h + * + * Original contents copied from arch/arm/include/asm/kprobes.h + * which contains the following notice... + * + * Copyright (C) 2006, 2007 Motorola Inc. + */ + +#ifndef _ASM_PROBES_H +#define _ASM_PROBES_H + +#ifndef __ASSEMBLY__ + +typedef u32 probes_opcode_t; + +struct arch_probes_insn; +typedef void (probes_insn_handler_t)(probes_opcode_t, + struct arch_probes_insn *, + struct pt_regs *); +typedef unsigned long (probes_check_cc)(unsigned long); +typedef void (probes_insn_singlestep_t)(probes_opcode_t, + struct arch_probes_insn *, + struct pt_regs *); +typedef void (probes_insn_fn_t)(void); + +/* Architecture specific copy of original instruction. */ +struct arch_probes_insn { + probes_opcode_t *insn; + probes_insn_handler_t *insn_handler; + probes_check_cc *insn_check_cc; + probes_insn_singlestep_t *insn_singlestep; + probes_insn_fn_t *insn_fn; + int stack_space; + unsigned long register_usage_flags; + bool kprobe_direct_exec; +}; + +#endif /* __ASSEMBLY__ */ + +/* + * We assume one instruction can consume at most 64 bytes stack, which is + * 'push {r0-r15}'. Instructions consume more or unknown stack space like + * 'str r0, [sp, #-80]' and 'str r0, [sp, r1]' should be prohibit to probe. + */ +#define MAX_STACK_SIZE 64 + +#endif |