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Current Path: /usr/src/contrib/processor-trace/libipt/src

usr / src / contrib / processor-trace / libipt / src /

📁 ..
📁 posix
📄 pt_asid.c(2.93 KB)
📄 pt_block_cache.c(2.94 KB)
📄 pt_block_decoder.c(88.11 KB)
📄 pt_config.c(5.87 KB)
📄 pt_cpu.c(3.89 KB)
📄 pt_decoder_function.c(9.07 KB)
📄 pt_encoder.c(19.19 KB)
📄 pt_error.c(3.09 KB)
📄 pt_event_queue.c(4.18 KB)
📄 pt_ild.c(30.45 KB)
📄 pt_image.c(15.28 KB)
📄 pt_image_section_cache.c(24.12 KB)
📄 pt_insn.c(8.6 KB)
📄 pt_insn_decoder.c(39.42 KB)
📄 pt_last_ip.c(3.28 KB)
📄 pt_msec_cache.c(3.38 KB)
📄 pt_packet.c(12.43 KB)
📄 pt_packet_decoder.c(14.01 KB)
📄 pt_query_decoder.c(80.68 KB)
📄 pt_retstack.c(2.56 KB)
📄 pt_section.c(12.77 KB)
📄 pt_section_file.c(5.53 KB)
📄 pt_sync.c(6.26 KB)
📄 pt_time.c(17.95 KB)
📄 pt_tnt_cache.c(2.47 KB)
📄 pt_version.c(1.8 KB)
📁 windows

Editing: pt_tnt_cache.c

/*
 * Copyright (c) 2013-2019, 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.
 */

#include "pt_tnt_cache.h"

#include "intel-pt.h"

void pt_tnt_cache_init(struct pt_tnt_cache *cache)
{
	if (!cache)
		return;

cache->tnt = 0ull;
	cache->index = 0ull;
}

int pt_tnt_cache_is_empty(const struct pt_tnt_cache *cache)
{
	if (!cache)
		return -pte_invalid;

return cache->index == 0;
}

int pt_tnt_cache_query(struct pt_tnt_cache *cache)
{
	int taken;

if (!cache)
		return -pte_invalid;

if (!cache->index)
		return -pte_bad_query;

taken = (cache->tnt & cache->index) != 0;
	cache->index >>= 1;

return taken;
}

int pt_tnt_cache_update_tnt(struct pt_tnt_cache *cache,
			    const struct pt_packet_tnt *packet,
			    const struct pt_config *config)
{
	uint8_t bit_size;

(void) config;

if (!cache || !packet)
		return -pte_invalid;

if (cache->index)
		return -pte_bad_context;

bit_size = packet->bit_size;
	if (!bit_size)
		return -pte_bad_packet;

cache->tnt = packet->payload;
	cache->index = 1ull << (bit_size - 1);

return 0;
}

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Editing: pt_tnt_cache.c

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