5f307491f3
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>
42 lines
945 B
C
42 lines
945 B
C
/**
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* @file arch/alpha/oprofile/op_impl.h
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*
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* @remark Copyright 2002 OProfile authors
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* @remark Read the file COPYING
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*
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* @author Richard Henderson <rth@twiddle.net>
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*/
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#ifndef OP_IMPL_H
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#define OP_IMPL_H 1
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extern int (*perf_irq)(void);
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/* Per-counter configuration as set via oprofilefs. */
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struct op_counter_config {
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unsigned long enabled;
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unsigned long event;
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unsigned long count;
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/* Dummies because I am too lazy to hack the userspace tools. */
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unsigned long kernel;
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unsigned long user;
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unsigned long exl;
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unsigned long unit_mask;
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};
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/* Per-architecture configury and hooks. */
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struct op_mips_model {
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void (*reg_setup) (struct op_counter_config *);
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void (*cpu_setup) (void *dummy);
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int (*init)(void);
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void (*exit)(void);
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void (*cpu_start)(void *args);
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void (*cpu_stop)(void *args);
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char *cpu_type;
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unsigned char num_counters;
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};
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void op_mips_backtrace(struct pt_regs * const regs, unsigned int depth);
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#endif
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