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Add a facility to log Intel Processor Trace decoding. The log is intended for debugging purposes only. The log file name is "intel_pt.log" and is opened in the current directory. The log contains a record of all packets and instructions decoded and can get very large (10 MB would be a small one). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* intel_pt_log.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_LOG_H__
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#define INCLUDE__INTEL_PT_LOG_H__
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#include <stdint.h>
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#include <inttypes.h>
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struct intel_pt_pkt;
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void intel_pt_log_enable(void);
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void intel_pt_log_disable(void);
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void intel_pt_log_set_name(const char *name);
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void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
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uint64_t pos, const unsigned char *buf);
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struct intel_pt_insn;
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void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip);
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void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn,
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uint64_t ip);
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__attribute__((format(printf, 1, 2)))
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void intel_pt_log(const char *fmt, ...);
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#define x64_fmt "0x%" PRIx64
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static inline void intel_pt_log_at(const char *msg, uint64_t u)
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{
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intel_pt_log("%s at " x64_fmt "\n", msg, u);
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}
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static inline void intel_pt_log_to(const char *msg, uint64_t u)
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{
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intel_pt_log("%s to " x64_fmt "\n", msg, u);
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}
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#endif
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