zhangyang-variable-monitor/source/module/monitor_kernel.h

#include "monitor_kallsyms.h"
#include "monitor_mem.h"
#include "monitor_proc.h"
#include "monitor_timer.h"
#include "monitor_trace.h"
#include "monitor_perf.h"

#include <linux/ioctl.h> // for ioctl

// ioctl
#define IOCTL_MAGIC_NUMBER 'k'
#define IOCTL_WATCH_VARIABLE 0
#define IOCTL_DUMP_LOG 1
#define IOCTL_PID _IOWR(IOCTL_MAGIC_NUMBER, 2, int)
#define IOCTL_TGID _IOWR(IOCTL_MAGIC_NUMBER, 3, int)
#define IOCTL_DUMP_LOG_SA _IOWR(IOCTL_MAGIC_NUMBER, 4, int)

// default value
extern int def_interval_ns;
extern int dump_reset_sec;

extern mm_tree mm_tree_struct;
extern struct diag_variant_buffer load_monitor_variant_buffer; // global buffer
#define VARIABLE_MONITOR_BUFFER_SIZE 256 * 1024 * 1024         // 256MB
extern struct diag_variant_buffer stand_alone_buffer; // buffer for single work
#define STAND_ALONE_BUFFER_SIZE 50 * 1024 * 1024      // 50 MB

// for buffer
int dump_log(ioctl_dump_param *dump_param, unsigned long ioctl_param,
             struct diag_variant_buffer *buffer);

int monitor_init(void);  // monitor init
void monitor_exit(void); // monitor exit

int start_watch_variable(watch_arg warg); // for open
void clear_watch(pid_t pid);              // for release

enum hrtimer_restart
check_variable_cb(struct hrtimer *timer); // hrtimer callback

// for test
int diag_pid(int id);  // for test
int diag_tgid(int id); // for test
void diag_task(kernel_watch_timer *k_watch_timer);
void diag_task_all(void);
void diag_task_by_tgid(pid_t tgid);