Viewing file:  insn-eval.h (1.35 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
#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 */
|