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85f87cf491
Its latest version merged from: ^/vendor/processor-trace/892e12c5a27bda5806d1e63269986bb4171b5a8b Sponsored by: DARPA, AFRL
82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/*
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* Copyright (c) 2015-2019, 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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#include "intel-pt.h"
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/* Read the configuration provided by a library user and zero-initialize
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* missing fields.
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*
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* We keep the user's size value if it is smaller than sizeof(*@config) to
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* allow decoders to detect missing configuration bits.
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*
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* Returns zero on success, a negative error code otherwise.
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* Returns -pte_internal if @config is NULL.
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* Returns -pte_invalid if @uconfig is NULL.
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* Returns -pte_bad_config if @config is too small to be useful.
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*/
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extern int pt_config_from_user(struct pt_config *config,
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const struct pt_config *uconfig);
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/* Get the configuration for the n'th address filter.
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*
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* Returns zero if @filter is NULL or @n is out of bounds.
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*
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* This corresponds to IA32_RTIT_CTL.ADDRn_CFG.
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*/
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extern uint32_t pt_filter_addr_cfg(const struct pt_conf_addr_filter *filter,
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uint8_t n);
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/* Get the lower bound (inclusive) of the n'th address filter.
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*
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* Returns zero if @filter is NULL or @n is out of bounds.
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*
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* This corresponds to IA32_RTIT_ADDRn_A.
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*/
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extern uint64_t pt_filter_addr_a(const struct pt_conf_addr_filter *filter,
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uint8_t n);
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/* Get the upper bound (inclusive) of the n'th address filter.
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*
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* Returns zero if @filter is NULL or @n is out of bounds.
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*
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* This corresponds to IA32_RTIT_ADDRn_B.
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*/
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extern uint64_t pt_filter_addr_b(const struct pt_conf_addr_filter *filter,
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uint8_t n);
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/* Check address filters.
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*
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* Checks @addr against @filter.
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*
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* Returns a positive number if @addr lies in a tracing-enabled region.
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* Returns zero if @addr lies in a tracing-disabled region.
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* Returns a negative pt_error_code otherwise.
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*/
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extern int pt_filter_addr_check(const struct pt_conf_addr_filter *filter,
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uint64_t addr);
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