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85f87cf491
Its latest version merged from: ^/vendor/processor-trace/892e12c5a27bda5806d1e63269986bb4171b5a8b Sponsored by: DARPA, AFRL
134 lines
4.9 KiB
C
134 lines
4.9 KiB
C
/*
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* Copyright (c) 2014-2019, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PT_QUERY_DECODER_H
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#define PT_QUERY_DECODER_H
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#include "pt_last_ip.h"
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#include "pt_tnt_cache.h"
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#include "pt_time.h"
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#include "pt_event_queue.h"
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#include "intel-pt.h"
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struct pt_decoder_function;
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/* An Intel PT query decoder. */
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struct pt_query_decoder {
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/* The decoder configuration. */
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struct pt_config config;
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/* The current position in the trace buffer. */
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const uint8_t *pos;
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/* The position of the last PSB packet. */
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const uint8_t *sync;
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/* The decoding function for the next packet. */
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const struct pt_decoder_function *next;
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/* The last-ip. */
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struct pt_last_ip ip;
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/* The cached tnt indicators. */
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struct pt_tnt_cache tnt;
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/* Timing information. */
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struct pt_time time;
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/* The time at the last query (before reading ahead). */
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struct pt_time last_time;
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/* Timing calibration. */
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struct pt_time_cal tcal;
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/* Pending (incomplete) events. */
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struct pt_event_queue evq;
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/* The current event. */
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struct pt_event *event;
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/* A collection of flags relevant for decoding:
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*
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* - tracing is enabled.
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*/
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uint32_t enabled:1;
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/* - consume the current packet. */
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uint32_t consume_packet:1;
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};
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/* Initialize the query decoder.
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*
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* Returns zero on success, a negative error code otherwise.
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*/
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extern int pt_qry_decoder_init(struct pt_query_decoder *,
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const struct pt_config *);
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/* Finalize the query decoder. */
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extern void pt_qry_decoder_fini(struct pt_query_decoder *);
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/* Decoder functions (tracing context). */
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extern int pt_qry_decode_unknown(struct pt_query_decoder *);
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extern int pt_qry_decode_pad(struct pt_query_decoder *);
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extern int pt_qry_decode_psb(struct pt_query_decoder *);
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extern int pt_qry_decode_tip(struct pt_query_decoder *);
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extern int pt_qry_decode_tnt_8(struct pt_query_decoder *);
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extern int pt_qry_decode_tnt_64(struct pt_query_decoder *);
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extern int pt_qry_decode_tip_pge(struct pt_query_decoder *);
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extern int pt_qry_decode_tip_pgd(struct pt_query_decoder *);
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extern int pt_qry_decode_fup(struct pt_query_decoder *);
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extern int pt_qry_decode_pip(struct pt_query_decoder *);
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extern int pt_qry_decode_ovf(struct pt_query_decoder *);
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extern int pt_qry_decode_mode(struct pt_query_decoder *);
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extern int pt_qry_decode_psbend(struct pt_query_decoder *);
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extern int pt_qry_decode_tsc(struct pt_query_decoder *);
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extern int pt_qry_header_tsc(struct pt_query_decoder *);
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extern int pt_qry_decode_cbr(struct pt_query_decoder *);
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extern int pt_qry_header_cbr(struct pt_query_decoder *);
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extern int pt_qry_decode_tma(struct pt_query_decoder *);
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extern int pt_qry_decode_mtc(struct pt_query_decoder *);
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extern int pt_qry_decode_cyc(struct pt_query_decoder *);
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extern int pt_qry_decode_stop(struct pt_query_decoder *);
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extern int pt_qry_decode_vmcs(struct pt_query_decoder *);
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extern int pt_qry_decode_mnt(struct pt_query_decoder *);
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extern int pt_qry_decode_exstop(struct pt_query_decoder *);
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extern int pt_qry_decode_mwait(struct pt_query_decoder *);
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extern int pt_qry_decode_pwre(struct pt_query_decoder *);
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extern int pt_qry_decode_pwrx(struct pt_query_decoder *);
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extern int pt_qry_decode_ptw(struct pt_query_decoder *);
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/* Decoder functions (header context). */
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extern int pt_qry_header_fup(struct pt_query_decoder *);
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extern int pt_qry_header_pip(struct pt_query_decoder *);
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extern int pt_qry_header_mode(struct pt_query_decoder *);
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extern int pt_qry_header_vmcs(struct pt_query_decoder *);
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extern int pt_qry_header_mnt(struct pt_query_decoder *);
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#endif /* PT_QUERY_DECODER_H */
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