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#ifndef UFTRACE_KERNEL_H
#define UFTRACE_KERNEL_H
#include "libtraceevent/event-parse.h"
#include "uftrace.h"
#include "utils/list.h"
#include "utils/utils.h"
#define KERNEL_NOP_TRACER "nop"
#define KERNEL_GRAPH_TRACER "function_graph"
struct uftrace_kernel_writer {
int pid;
int nr_cpus;
int depth;
unsigned long bufsize;
char *tracer;
int *traces;
int *fds;
char *output_dir;
char *clock;
struct list_head filters;
struct list_head notrace;
struct list_head patches;
struct list_head nopatch;
struct list_head events;
};
struct uftrace_kernel_reader {
int nr_cpus;
int last_read_cpu;
bool skip_out;
char *dirname;
int *fds;
int64_t *offsets;
int64_t *sizes;
size_t pagesize;
void **mmaps;
struct kbuffer **kbufs;
struct pevent *pevent;
struct uftrace_data *handle;
struct uftrace_record *rstacks;
struct uftrace_rstack_list *rstack_list;
struct trace_seq trace_buf;
struct uftrace_record trace_rec;
bool *rstack_valid;
bool *rstack_done;
int *missed_events;
int *tids;
};
/* these functions will be used at record time */
int setup_kernel_tracing(struct uftrace_kernel_writer *kernel, struct uftrace_opts *opts);
int start_kernel_tracing(struct uftrace_kernel_writer *kernel);
int record_kernel_tracing(struct uftrace_kernel_writer *kernel);
int record_kernel_trace_pipe(struct uftrace_kernel_writer *kernel, int cpu, int sock);
int stop_kernel_tracing(struct uftrace_kernel_writer *kernel);
int finish_kernel_tracing(struct uftrace_kernel_writer *kernel);
void list_kernel_events(void);
/* these functions will be used at replay time */
int setup_kernel_data(struct uftrace_kernel_reader *kernel);
int read_kernel_stack(struct uftrace_data *handle, struct uftrace_task_reader **taskp);
int read_kernel_cpu_data(struct uftrace_kernel_reader *kernel, int cpu);
void *read_kernel_event(struct uftrace_kernel_reader *kernel, int cpu, int *psize);
struct uftrace_record *get_kernel_record(struct uftrace_kernel_reader *kernel,
struct uftrace_task_reader *task, int cpu);
int finish_kernel_data(struct uftrace_kernel_reader *kernel);
static inline bool has_kernel_data(struct uftrace_kernel_reader *kernel)
{
return kernel && kernel->pevent != NULL;
}
static inline bool has_kernel_event(char *events)
{
return events && has_kernel_filter(events);
}
bool check_kernel_pid_filter(void);
#endif /* UFTRACE_KERNEL_H */
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