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85f87cf491
Its latest version merged from: ^/vendor/processor-trace/892e12c5a27bda5806d1e63269986bb4171b5a8b Sponsored by: DARPA, AFRL
125 lines
4.5 KiB
C
125 lines
4.5 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_ENCODER_H
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#define PT_ENCODER_H
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#include "intel-pt.h"
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/* An Intel PT packet encoder. */
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struct pt_encoder {
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/* The encoder configuration. */
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struct pt_config config;
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/** The current position in the trace buffer. */
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uint8_t *pos;
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};
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/* Initialize the packet encoder.
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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_encoder_init(struct pt_encoder *, const struct pt_config *);
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/* Finalize the packet encoder. */
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extern void pt_encoder_fini(struct pt_encoder *);
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/* The below functions are convenience wrappers around pt_enc_next(). */
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/* Encode a Padding (pad) packet. */
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extern int pt_encode_pad(struct pt_encoder *);
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/* Encode a Packet Stream Boundary (psb) packet. */
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extern int pt_encode_psb(struct pt_encoder *);
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/* Encode an End PSB (psbend) packet. */
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extern int pt_encode_psbend(struct pt_encoder *);
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/* Encode a Target Instruction Pointer (tip) packet. */
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extern int pt_encode_tip(struct pt_encoder *, uint64_t ip,
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enum pt_ip_compression ipc);
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/* Encode a Taken Not Taken (tnt) packet - 8-bit version. */
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extern int pt_encode_tnt_8(struct pt_encoder *, uint8_t tnt, int size);
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/* Encode a Taken Not Taken (tnt) packet - 64-bit version. */
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extern int pt_encode_tnt_64(struct pt_encoder *, uint64_t tnt, int size);
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/* Encode a Packet Generation Enable (tip.pge) packet. */
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extern int pt_encode_tip_pge(struct pt_encoder *, uint64_t ip,
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enum pt_ip_compression ipc);
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/* Encode a Packet Generation Disable (tip.pgd) packet. */
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extern int pt_encode_tip_pgd(struct pt_encoder *, uint64_t ip,
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enum pt_ip_compression ipc);
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/* Encode a Flow Update Packet (fup). */
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extern int pt_encode_fup(struct pt_encoder *, uint64_t ip,
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enum pt_ip_compression ipc);
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/* Encode a Paging Information Packet (pip). */
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extern int pt_encode_pip(struct pt_encoder *, uint64_t cr3, uint8_t flags);
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/* Encode a Overflow Packet (ovf). */
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extern int pt_encode_ovf(struct pt_encoder *);
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/* Encode a Mode Exec Packet (mode.exec). */
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extern int pt_encode_mode_exec(struct pt_encoder *, enum pt_exec_mode);
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/* Encode a Mode Tsx Packet (mode.tsx). */
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extern int pt_encode_mode_tsx(struct pt_encoder *, uint8_t);
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/* Encode a Time Stamp Counter (tsc) packet. */
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extern int pt_encode_tsc(struct pt_encoder *, uint64_t);
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/* Encode a Core Bus Ratio (cbr) packet. */
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extern int pt_encode_cbr(struct pt_encoder *, uint8_t);
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/* Encode a TSC/MTC Alignment (tma) packet. */
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extern int pt_encode_tma(struct pt_encoder *, uint16_t ctc,
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uint16_t fc);
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/* Encode a Mini Time Counter (mtc) packet. */
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extern int pt_encode_mtc(struct pt_encoder *, uint8_t ctc);
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/* Encode a Cycle Count (cyc) packet. */
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extern int pt_encode_cyc(struct pt_encoder *, uint32_t cyc);
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/* Encode a TraceStop Packet (stop). */
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extern int pt_encode_stop(struct pt_encoder *);
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/* Encode a VMCS packet. */
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extern int pt_encode_vmcs(struct pt_encoder *, uint64_t);
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/* Encode a Maintenance (mnt) packet. */
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extern int pt_encode_mnt(struct pt_encoder *, uint64_t);
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#endif /* PT_ENCODER_H */
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