kernel/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h

   1 /*
   2  * intel_pt_insn_decoder.h: Intel Processor Trace support
   3  * Copyright (c) 2013-2014, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  */
  15
  16 #ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
  17 #define INCLUDE__INTEL_PT_INSN_DECODER_H__
  18
  19 #include <stddef.h>
  20 #include <stdint.h>
  21
  22 #define INTEL_PT_INSN_DESC_MAX          32
  23 #define INTEL_PT_INSN_DBG_BUF_SZ        16
  24
  25 enum intel_pt_insn_op {
  26         INTEL_PT_OP_OTHER,
  27         INTEL_PT_OP_CALL,
  28         INTEL_PT_OP_RET,
  29         INTEL_PT_OP_JCC,
  30         INTEL_PT_OP_JMP,
  31         INTEL_PT_OP_LOOP,
  32         INTEL_PT_OP_IRET,
  33         INTEL_PT_OP_INT,
  34         INTEL_PT_OP_SYSCALL,
  35         INTEL_PT_OP_SYSRET,
  36 };
  37
  38 enum intel_pt_insn_branch {
  39         INTEL_PT_BR_NO_BRANCH,
  40         INTEL_PT_BR_INDIRECT,
  41         INTEL_PT_BR_CONDITIONAL,
  42         INTEL_PT_BR_UNCONDITIONAL,
  43 };
  44
  45 struct intel_pt_insn {
  46         enum intel_pt_insn_op           op;
  47         enum intel_pt_insn_branch       branch;
  48         int                             length;
  49         int32_t                         rel;
  50         unsigned char                   buf[INTEL_PT_INSN_DBG_BUF_SZ];
  51 };
  52
  53 int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
  54                       struct intel_pt_insn *intel_pt_insn);
  55
  56 const char *intel_pt_insn_name(enum intel_pt_insn_op op);
  57
  58 int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
  59                        size_t buf_len);
  60
  61 size_t intel_pt_insn_max_size(void);
  62
  63 int intel_pt_insn_type(enum intel_pt_insn_op op);
  64
  65 #endif