86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef __UNWIND_H
|
||
|
|
#define __UNWIND_H
|
||
|
|
|
||
|
|
#include <linux/compiler.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
struct map;
|
||
|
|
struct perf_sample;
|
||
|
|
struct symbol;
|
||
|
|
struct thread;
|
||
|
|
|
||
|
|
struct unwind_entry {
|
||
|
|
struct map *map;
|
||
|
|
struct symbol *sym;
|
||
|
|
u64 ip;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
|
||
|
|
|
||
|
|
struct unwind_libunwind_ops {
|
||
|
|
int (*prepare_access)(struct thread *thread);
|
||
|
|
void (*flush_access)(struct thread *thread);
|
||
|
|
void (*finish_access)(struct thread *thread);
|
||
|
|
int (*get_entries)(unwind_entry_cb_t cb, void *arg,
|
||
|
|
struct thread *thread,
|
||
|
|
struct perf_sample *data, int max_stack);
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef HAVE_DWARF_UNWIND_SUPPORT
|
||
|
|
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
|
||
|
|
struct thread *thread,
|
||
|
|
struct perf_sample *data, int max_stack);
|
||
|
|
/* libunwind specific */
|
||
|
|
#ifdef HAVE_LIBUNWIND_SUPPORT
|
||
|
|
#ifndef LIBUNWIND__ARCH_REG_ID
|
||
|
|
#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef LIBUNWIND__ARCH_REG_SP
|
||
|
|
#define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef LIBUNWIND__ARCH_REG_IP
|
||
|
|
#define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int LIBUNWIND__ARCH_REG_ID(int regnum);
|
||
|
|
int unwind__prepare_access(struct thread *thread, struct map *map,
|
||
|
|
bool *initialized);
|
||
|
|
void unwind__flush_access(struct thread *thread);
|
||
|
|
void unwind__finish_access(struct thread *thread);
|
||
|
|
#else
|
||
|
|
static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
|
||
|
|
struct map *map __maybe_unused,
|
||
|
|
bool *initialized __maybe_unused)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
|
||
|
|
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
static inline int
|
||
|
|
unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
|
||
|
|
void *arg __maybe_unused,
|
||
|
|
struct thread *thread __maybe_unused,
|
||
|
|
struct perf_sample *data __maybe_unused,
|
||
|
|
int max_stack __maybe_unused)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
|
||
|
|
struct map *map __maybe_unused,
|
||
|
|
bool *initialized __maybe_unused)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
|
||
|
|
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
|
||
|
|
#endif /* HAVE_DWARF_UNWIND_SUPPORT */
|
||
|
|
#endif /* __UNWIND_H */
|