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32f98aab75
Tidy instruction buffer size usage in preparation for copying the instruction bytes onto samples. The instruction buffer is presently used for debugging, so rename its size macro from INTEL_PT_INSN_DBG_BUF_SZ to INTEL_PT_INSN_BUF_SZ, and use it everywhere. Note that the maximum instruction size is 15 which is a less efficient size to copy than 16, which is why a separate buffer size is used. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1475847747-30994-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* intel_pt_insn_decoder.h: Intel Processor Trace support
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* Copyright (c) 2013-2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
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#define INCLUDE__INTEL_PT_INSN_DECODER_H__
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#include <stddef.h>
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#include <stdint.h>
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#define INTEL_PT_INSN_DESC_MAX 32
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#define INTEL_PT_INSN_BUF_SZ 16
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enum intel_pt_insn_op {
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INTEL_PT_OP_OTHER,
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INTEL_PT_OP_CALL,
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INTEL_PT_OP_RET,
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INTEL_PT_OP_JCC,
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INTEL_PT_OP_JMP,
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INTEL_PT_OP_LOOP,
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INTEL_PT_OP_IRET,
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INTEL_PT_OP_INT,
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INTEL_PT_OP_SYSCALL,
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INTEL_PT_OP_SYSRET,
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};
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enum intel_pt_insn_branch {
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INTEL_PT_BR_NO_BRANCH,
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INTEL_PT_BR_INDIRECT,
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INTEL_PT_BR_CONDITIONAL,
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INTEL_PT_BR_UNCONDITIONAL,
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};
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struct intel_pt_insn {
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enum intel_pt_insn_op op;
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enum intel_pt_insn_branch branch;
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int length;
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int32_t rel;
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unsigned char buf[INTEL_PT_INSN_BUF_SZ];
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};
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int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
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struct intel_pt_insn *intel_pt_insn);
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const char *intel_pt_insn_name(enum intel_pt_insn_op op);
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int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
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size_t buf_len);
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int intel_pt_insn_type(enum intel_pt_insn_op op);
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#endif
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