util/intel-pt-decoder/intel-pt-insn-decoder.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * intel_pt_insn_decoder.h: Intel Processor Trace support
0004  * Copyright (c) 2013-2014, Intel Corporation.
0005  */
0006
0007 #ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
0008 #define INCLUDE__INTEL_PT_INSN_DECODER_H__
0009
0010 #include <stddef.h>
0011 #include <stdint.h>
0012
0013 #define INTEL_PT_INSN_DESC_MAX      32
0014 #define INTEL_PT_INSN_BUF_SZ        16
0015
0016 enum intel_pt_insn_op {
0017     INTEL_PT_OP_OTHER,
0018     INTEL_PT_OP_CALL,
0019     INTEL_PT_OP_RET,
0020     INTEL_PT_OP_JCC,
0021     INTEL_PT_OP_JMP,
0022     INTEL_PT_OP_LOOP,
0023     INTEL_PT_OP_IRET,
0024     INTEL_PT_OP_INT,
0025     INTEL_PT_OP_SYSCALL,
0026     INTEL_PT_OP_SYSRET,
0027     INTEL_PT_OP_VMENTRY,
0028 };
0029
0030 enum intel_pt_insn_branch {
0031     INTEL_PT_BR_NO_BRANCH,
0032     INTEL_PT_BR_INDIRECT,
0033     INTEL_PT_BR_CONDITIONAL,
0034     INTEL_PT_BR_UNCONDITIONAL,
0035 };
0036
0037 struct intel_pt_insn {
0038     enum intel_pt_insn_op       op;
0039     enum intel_pt_insn_branch   branch;
0040     bool                emulated_ptwrite;
0041     int             length;
0042     int32_t             rel;
0043     unsigned char           buf[INTEL_PT_INSN_BUF_SZ];
0044 };
0045
0046 int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
0047               struct intel_pt_insn *intel_pt_insn);
0048
0049 const char *intel_pt_insn_name(enum intel_pt_insn_op op);
0050
0051 int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
0052                size_t buf_len);
0053
0054 int intel_pt_insn_type(enum intel_pt_insn_op op);
0055
0056 #endif