internal.h File Reference

#include <linux/hardirq.h>
#include <linux/uaccess.h>

Go to the source code of this file.

Data Structures
struct	ring_buffer

Macros
#define	RING_BUFFER_WRITABLE   0x01
#define	DEFINE_OUTPUT_COPY(func_name, memcpy_func)
#define	MEMCPY_SKIP(dst, src, n)   (n)
#define	arch_perf_out_copy_user   __copy_from_user_inatomic
#define	perf_user_stack_pointer(regs)   0

Functions
void	rb_free (struct ring_buffer *rb)
struct ring_buffer *	rb_alloc (int nr_pages, long watermark, int cpu, int flags)
void	perf_event_wakeup (struct perf_event *event)
void	perf_event_header__init_id (struct perf_event_header *header, struct perf_sample_data *data, struct perf_event *event)
void	perf_event__output_id_sample (struct perf_event *event, struct perf_output_handle *handle, struct perf_sample_data *sample)
struct page *	perf_mmap_to_page (struct ring_buffer *rb, unsigned long pgoff)
struct perf_callchain_entry *	perf_callchain (struct perf_event *event, struct pt_regs *regs)
int	get_callchain_buffers (void)
void	put_callchain_buffers (void)

Macro Definition Documentation

#define arch_perf_out_copy_user   __copy_from_user_inatomic

Definition at line 122 of file internal.h.

#define DEFINE_OUTPUT_COPY	(		func_name,
			memcpy_func
	)

Value:

static inline unsigned int                      \
func_name(struct perf_output_handle *handle,                \
      const void *buf, unsigned int len)                \
{                                   \
    unsigned long size, written;                    \
                                    \
    do {                                \
        size = min_t(unsigned long, handle->size, len);     \
                                    \
        written = memcpy_func(handle->addr, buf, size);     \
                                    \
        len -= written;                     \
		handle->addr += written;              \
		buf += written;                       \
		handle->size -= written;              \
        if (!handle->size) {                    \
			struct ring_buffer *rb = handle->rb;     \
                                    \
			handle->page++;                  \
			handle->page &= rb->nr_pages - 1;        \
			handle->addr = rb->data_pages[handle->page]; \
			handle->size = PAGE_SIZE << page_order(rb);  \
        }                           \
    } while (len && written == size);               \
                                    \
    return len;                         \
}

Definition at line 80 of file internal.h.

#define MEMCPY_SKIP	(		dst,
			src,
			n
	)		(n)

Definition at line 117 of file internal.h.

#define perf_user_stack_pointer

(

regs

)

0

Definition at line 174 of file internal.h.

#define RING_BUFFER_WRITABLE   0x01

Definition at line 9 of file internal.h.

Function Documentation

int get_callchain_buffers

(

void

)

Definition at line 97 of file callchain.c.

struct perf_callchain_entry* perf_callchain ( struct perf_event *  event, struct pt_regs *  regs  )

read

Definition at line 157 of file callchain.c.

void perf_event__output_id_sample	(	struct perf_event *	event,
		struct perf_output_handle *	handle,
		struct perf_sample_data *	sample
	)

Definition at line 3949 of file core.c.

void perf_event_header__init_id	(	struct perf_event_header *	header,
		struct perf_sample_data *	data,
		struct perf_event *	event
	)

Definition at line 3920 of file core.c.

void perf_event_wakeup

(

struct perf_event *

event

)

Definition at line 3717 of file core.c.

struct page* perf_mmap_to_page ( struct ring_buffer *  rb, unsigned long  pgoff  )

read

Definition at line 230 of file ring_buffer.c.

void put_callchain_buffers

(

void

)

Definition at line 124 of file callchain.c.

struct ring_buffer* rb_alloc ( int  nr_pages, long  watermark, int  cpu, int  flags  )

read

Definition at line 254 of file ring_buffer.c.

void rb_free

(

struct ring_buffer *

rb

)

Definition at line 304 of file ring_buffer.c.