mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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3d6ff0e5f4
Current implementation save trace data files on tmpfs by default, acrntrace would use up all the physical mem, which can affect system functioning. This commit changes default location for trace data file to current dir, and removes the codes for space reservation, which is not necessary. Signed-off-by: Yan, Like <like.yan@intel.com> Reviewed-by: Eddie Dong <eddie.dong@intel.com> Reviewed-by: Li, Fei1 <fei1.li@intel.com>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "sbuf.h"
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#define PCPU_NUM 4
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#define TRACE_ELEMENT_SIZE 32 /* byte */
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#define TRACE_ELEMENT_NUM ((4 * 1024 * 1024 - 64) / TRACE_ELEMENT_SIZE)
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#define PAGE_SIZE 4096
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#define PAGE_MASK (~(PAGE_SIZE - 1))
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#define MMAP_SIZE (4 * 1024 * 1024)
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/*
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#define MMAP_SIZE ((TRACE_ELEMENT_SIZE * TRACE_ELEMENT_NUM \
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+ PAGE_SIZE - 1) & PAGE_MASK)
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*/
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#define TRACE_FILE_NAME_LEN 32
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#define TRACE_FILE_DIR_LEN (TRACE_FILE_NAME_LEN - 3)
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#define TRACE_FILE_ROOT "acrntrace/"
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#define DEV_PATH_LEN 18
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#define TIME_STR_LEN 16
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#define CMD_MAX_LEN 48
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#define pr_fmt(fmt) "acrntrace: " fmt
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#define pr_info(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_err(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
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#ifdef DEBUG
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#define pr_dbg(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
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#else
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#define pr_dbg(fmt, ...)
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#endif
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/*
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* flags:
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* FLAG_TO_REL - resources need to be release
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* FLAG_CLEAR_BUF - to clear buffered old data
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*/
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#define FLAG_TO_REL (1UL << 0)
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#define FLAG_CLEAR_BUF (1UL << 1)
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#define foreach_cpu(cpu) \
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for ((cpu) = 0; (cpu) < (pcpu_num); (cpu)++)
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typedef unsigned char uint8_t;
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typedef unsigned int uint32_t;
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typedef unsigned long uint64_t;
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typedef struct {
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uint64_t tsc;
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uint64_t id;
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union {
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struct {
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uint32_t a, b, c, d;
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};
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struct {
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uint8_t a1, a2, a3, a4;
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uint8_t b1, b2, b3, b4;
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uint8_t c1, c2, c3, c4;
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uint8_t d1, d2, d3, d4;
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};
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struct {
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uint64_t e;
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uint64_t f;
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};
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char str[16];
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};
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} trace_ev_t;
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typedef struct {
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uint32_t cpuid;
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int exit_flag;
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int trace_fd;
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shared_buf_t *sbuf;
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pthread_mutex_t *sbuf_lock;
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} param_t;
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typedef struct {
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int dev_fd;
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char dev_name[DEV_PATH_LEN];
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pthread_t thrd;
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param_t param;
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} reader_struct;
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