linux/arch/mips/oprofile/op_impl.h
Daniel Kalmar 5f307491f3 MIPS: oprofile: Add callgraph support
Stack unwinding is done by code examination. For kernelspace, the
already existing unwind function is utilized that uses kallsyms to
quickly find the beginning of functions. For userspace a new function
was added that examines code at and before the pc.

Signed-off-by: Daniel Kalmar <kalmard@homejinni.com>
Signed-off-by: Gergely Kis <gergely@homejinni.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-06-15 14:35:34 +02:00

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945 B
C

/**
* @file arch/alpha/oprofile/op_impl.h
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author Richard Henderson <rth@twiddle.net>
*/
#ifndef OP_IMPL_H
#define OP_IMPL_H 1
extern int (*perf_irq)(void);
/* Per-counter configuration as set via oprofilefs. */
struct op_counter_config {
unsigned long enabled;
unsigned long event;
unsigned long count;
/* Dummies because I am too lazy to hack the userspace tools. */
unsigned long kernel;
unsigned long user;
unsigned long exl;
unsigned long unit_mask;
};
/* Per-architecture configury and hooks. */
struct op_mips_model {
void (*reg_setup) (struct op_counter_config *);
void (*cpu_setup) (void *dummy);
int (*init)(void);
void (*exit)(void);
void (*cpu_start)(void *args);
void (*cpu_stop)(void *args);
char *cpu_type;
unsigned char num_counters;
};
void op_mips_backtrace(struct pt_regs * const regs, unsigned int depth);
#endif