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#ifndef _ASM_X86_INSN_EVAL_H #define _ASM_X86_INSN_EVAL_H /* * A collection of utility functions for x86 instruction analysis to be * used in a kernel context. Useful when, for instance, making sense * of the registers indicated by operands. */ #include <linux/compiler.h> #include <linux/bug.h> #include <linux/err.h> #include <asm/ptrace.h> #define INSN_CODE_SEG_ADDR_SZ(params) ((params >> 4) & 0xf) #define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf) #define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4)) int pt_regs_offset(struct pt_regs *regs, int regno); bool insn_has_rep_prefix(struct insn *insn); void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs); int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs); int insn_get_modrm_reg_off(struct insn *insn, struct pt_regs *regs); unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx); int insn_get_code_seg_params(struct pt_regs *regs); int insn_get_effective_ip(struct pt_regs *regs, unsigned long *ip); int insn_fetch_from_user(struct pt_regs *regs, unsigned char buf[MAX_INSN_SIZE]); int insn_fetch_from_user_inatomic(struct pt_regs *regs, unsigned char buf[MAX_INSN_SIZE]); bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs, unsigned char buf[MAX_INSN_SIZE], int buf_size); #endif /* _ASM_X86_INSN_EVAL_H */