mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-08-11 13:03:15 +00:00
a35a650f5f
Benefits of outputing trace data as raw data:
- Smaller trace data size
- More convenient to add new trace entry. There is no need to change acrntrace
when we add new trace entry to HV. All we need do is to update the analysis
scripts to deal with this situation.
Trace data size(with 1 UOS):
~57M -- with patch
~137M -- without patch
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
|
|
#include "sbuf.h"
|
|
|
|
#define PCPU_NUM 4
|
|
#define TRACE_ELEMENT_SIZE 32 /* byte */
|
|
#define TRACE_ELEMENT_NUM ((4 * 1024 * 1024 - 64) / TRACE_ELEMENT_SIZE)
|
|
#define PAGE_SIZE 4096
|
|
#define PAGE_MASK (~(PAGE_SIZE - 1))
|
|
#define MMAP_SIZE (4 * 1024 * 1024)
|
|
/*
|
|
#define MMAP_SIZE ((TRACE_ELEMENT_SIZE * TRACE_ELEMENT_NUM \
|
|
+ PAGE_SIZE - 1) & PAGE_MASK)
|
|
*/
|
|
#define TRACE_FILE_NAME_LEN 36
|
|
#define TRACE_FILE_DIR_LEN (TRACE_FILE_NAME_LEN - 2)
|
|
#define TRACE_FILE_ROOT "/tmp/acrntrace/"
|
|
#define DEV_PATH_LEN 18
|
|
#define TIME_STR_LEN 16
|
|
#define CMD_MAX_LEN 48
|
|
|
|
#define pr_fmt(fmt) "acrntrace: " fmt
|
|
#define pr_info(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_err(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
|
|
|
|
#ifdef DEBUG
|
|
#define pr_dbg(fmt, ...) printf(pr_fmt(fmt), ##__VA_ARGS__)
|
|
#else
|
|
#define pr_dbg(fmt, ...)
|
|
#endif
|
|
|
|
/*
|
|
* flags:
|
|
* FLAG_TO_REL - resources need to be release
|
|
* FLAG_CLEAR_BUF - to clear buffered old data
|
|
*/
|
|
#define FLAG_TO_REL (1UL << 0)
|
|
#define FLAG_CLEAR_BUF (1UL << 1)
|
|
|
|
#define foreach_cpu(cpu) \
|
|
for ((cpu) = 0; (cpu) < (pcpu_num); (cpu)++)
|
|
|
|
typedef unsigned char uint8_t;
|
|
typedef unsigned int uint32_t;
|
|
typedef unsigned long uint64_t;
|
|
|
|
typedef struct {
|
|
uint64_t tsc;
|
|
uint64_t id;
|
|
union {
|
|
struct {
|
|
uint32_t a, b, c, d;
|
|
};
|
|
struct {
|
|
uint8_t a1, a2, a3, a4;
|
|
uint8_t b1, b2, b3, b4;
|
|
uint8_t c1, c2, c3, c4;
|
|
uint8_t d1, d2, d3, d4;
|
|
};
|
|
struct {
|
|
uint64_t e;
|
|
uint64_t f;
|
|
};
|
|
char str[16];
|
|
};
|
|
} trace_ev_t;
|
|
|
|
typedef struct {
|
|
uint32_t cpuid;
|
|
int exit_flag;
|
|
int trace_fd;
|
|
shared_buf_t *sbuf;
|
|
pthread_mutex_t *sbuf_lock;
|
|
} param_t;
|
|
|
|
typedef struct {
|
|
int dev_fd;
|
|
char dev_name[DEV_PATH_LEN];
|
|
pthread_t thrd;
|
|
param_t param;
|
|
} reader_struct;
|