Differential D12815 Diff 40474 processor-trace/24982c1a6fce48f1e416461d42899805f74fbb26/libipt/internal/include/pt_insn_decoder.h
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processor-trace/24982c1a6fce48f1e416461d42899805f74fbb26/libipt/internal/include/pt_insn_decoder.h
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/* | |||||
* Copyright (c) 2013-2018, Intel Corporation | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions are met: | |||||
* | |||||
* * Redistributions of source code must retain the above copyright notice, | |||||
* this list of conditions and the following disclaimer. | |||||
* * Redistributions in binary form must reproduce the above copyright notice, | |||||
* this list of conditions and the following disclaimer in the documentation | |||||
* and/or other materials provided with the distribution. | |||||
* * Neither the name of Intel Corporation nor the names of its contributors | |||||
* may be used to endorse or promote products derived from this software | |||||
* without specific prior written permission. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |||||
* POSSIBILITY OF SUCH DAMAGE. | |||||
*/ | |||||
#ifndef PT_INSN_DECODER_H | |||||
#define PT_INSN_DECODER_H | |||||
#include "pt_query_decoder.h" | |||||
#include "pt_image.h" | |||||
#include "pt_retstack.h" | |||||
#include "pt_ild.h" | |||||
#include "pt_msec_cache.h" | |||||
#include <inttypes.h> | |||||
struct pt_insn_decoder { | |||||
/* The Intel(R) Processor Trace query decoder. */ | |||||
struct pt_query_decoder query; | |||||
/* The configuration flags. | |||||
* | |||||
* Those are our flags set by the user. In @query.config.flags, we set | |||||
* the flags we need for the query decoder. | |||||
*/ | |||||
struct pt_conf_flags flags; | |||||
/* The default image. */ | |||||
struct pt_image default_image; | |||||
/* The image. */ | |||||
struct pt_image *image; | |||||
/* The current cached section. */ | |||||
struct pt_msec_cache scache; | |||||
/* The current address space. */ | |||||
struct pt_asid asid; | |||||
/* The current Intel(R) Processor Trace event. */ | |||||
struct pt_event event; | |||||
/* The call/return stack for ret compression. */ | |||||
struct pt_retstack retstack; | |||||
/* The current instruction. | |||||
* | |||||
* This is only valid if @process_insn is set. | |||||
*/ | |||||
struct pt_insn insn; | |||||
struct pt_insn_ext iext; | |||||
/* The current IP. | |||||
* | |||||
* If tracing is disabled, this is the IP at which we assume tracing to | |||||
* be resumed. | |||||
*/ | |||||
uint64_t ip; | |||||
/* The current execution mode. */ | |||||
enum pt_exec_mode mode; | |||||
/* The status of the last successful decoder query. | |||||
* | |||||
* Errors are reported directly; the status is always a non-negative | |||||
* pt_status_flag bit-vector. | |||||
*/ | |||||
int status; | |||||
/* A collection of flags defining how to proceed flow reconstruction: | |||||
* | |||||
* - tracing is enabled. | |||||
*/ | |||||
uint32_t enabled:1; | |||||
/* - process @event. */ | |||||
uint32_t process_event:1; | |||||
/* - instructions are executed speculatively. */ | |||||
uint32_t speculative:1; | |||||
/* - process @insn/@iext. | |||||
* | |||||
* We have started processing events binding to @insn/@iext. We have | |||||
* not yet proceeded past it. | |||||
* | |||||
* We will do so in pt_insn_event() after processing all events that | |||||
* bind to it. | |||||
*/ | |||||
uint32_t process_insn:1; | |||||
/* - a paging event has already been bound to @insn/@iext. */ | |||||
uint32_t bound_paging:1; | |||||
/* - a vmcs event has already been bound to @insn/@iext. */ | |||||
uint32_t bound_vmcs:1; | |||||
/* - a ptwrite event has already been bound to @insn/@iext. */ | |||||
uint32_t bound_ptwrite:1; | |||||
}; | |||||
/* Initialize an instruction flow decoder. | |||||
* | |||||
* Returns zero on success; a negative error code otherwise. | |||||
* Returns -pte_internal, if @decoder is NULL. | |||||
* Returns -pte_invalid, if @config is NULL. | |||||
*/ | |||||
extern int pt_insn_decoder_init(struct pt_insn_decoder *decoder, | |||||
const struct pt_config *config); | |||||
/* Finalize an instruction flow decoder. */ | |||||
extern void pt_insn_decoder_fini(struct pt_insn_decoder *decoder); | |||||
#endif /* PT_INSN_DECODER_H */ |