xref: /openbmc/linux/tools/perf/util/unwind.h (revision 37676af15c8d5a9689c9d1220d2a27d510cbe238)
171ad0f5eSJiri Olsa #ifndef __UNWIND_H
271ad0f5eSJiri Olsa #define __UNWIND_H
371ad0f5eSJiri Olsa 
471ad0f5eSJiri Olsa #include "types.h"
571ad0f5eSJiri Olsa #include "event.h"
671ad0f5eSJiri Olsa #include "symbol.h"
771ad0f5eSJiri Olsa 
871ad0f5eSJiri Olsa struct unwind_entry {
971ad0f5eSJiri Olsa 	struct map	*map;
1071ad0f5eSJiri Olsa 	struct symbol	*sym;
1171ad0f5eSJiri Olsa 	u64		ip;
1271ad0f5eSJiri Olsa };
1371ad0f5eSJiri Olsa 
1471ad0f5eSJiri Olsa typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
1571ad0f5eSJiri Olsa 
1689fe808aSIngo Molnar #ifdef HAVE_LIBUNWIND_SUPPORT
1771ad0f5eSJiri Olsa int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
1871ad0f5eSJiri Olsa 			struct machine *machine,
1971ad0f5eSJiri Olsa 			struct thread *thread,
2071ad0f5eSJiri Olsa 			u64 sample_uregs,
21*37676af1SArnaldo Carvalho de Melo 			struct perf_sample *data, int max_stack);
2271ad0f5eSJiri Olsa int unwind__arch_reg_id(int regnum);
2371ad0f5eSJiri Olsa #else
2471ad0f5eSJiri Olsa static inline int
251d037ca1SIrina Tirdea unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
261d037ca1SIrina Tirdea 		    void *arg __maybe_unused,
271d037ca1SIrina Tirdea 		    struct machine *machine __maybe_unused,
281d037ca1SIrina Tirdea 		    struct thread *thread __maybe_unused,
291d037ca1SIrina Tirdea 		    u64 sample_uregs __maybe_unused,
30*37676af1SArnaldo Carvalho de Melo 		    struct perf_sample *data __maybe_unused,
31*37676af1SArnaldo Carvalho de Melo 		    int max_stack __maybe_unused)
3271ad0f5eSJiri Olsa {
3371ad0f5eSJiri Olsa 	return 0;
3471ad0f5eSJiri Olsa }
3589fe808aSIngo Molnar #endif /* HAVE_LIBUNWIND_SUPPORT */
3671ad0f5eSJiri Olsa #endif /* __UNWIND_H */
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