/* SPDX-License-Identifier: GPL-2.0 */#ifndef PERF_LIBDW_H#define PERF_LIBDW_H #include <linux/types.h> struct dso;struct inline_node;struct symbol; #ifdef HAVE_LIBDW_SUPPORT/* * libdw__addr2line - Convert address to source location using libdw * @addr: Address to resolve * @file: Pointer to return filename (caller must free) * @line_nr: Pointer to return line number * @dso: The dso struct * @unwind_inlines: Whether to unwind inline function calls * @node: Inline node list to append to * @sym: The symbol associated with the address * * This function initializes a Dwfl context for the DSO if not already present, * finds the source line information for the given address, and optionally * resolves inline function call chains. * * Returns 1 on success (found), 0 on failure (not found). */int libdw__addr2line(u64 addr, char **file,		     unsigned int *line_nr, struct dso *dso,		     bool unwind_inlines, struct inline_node *node,		     struct symbol *sym); /* * dso__free_libdw - Free libdw resources associated with the DSO * @dso: The dso to free resources for * * This function cleans up the Dwfl context used for addr2line lookups. */void dso__free_libdw(struct dso *dso); #else /* HAVE_LIBDW_SUPPORT */ static inline int libdw__addr2line(u64 addr __maybe_unused, char **file __maybe_unused,				   unsigned int *line_nr __maybe_unused,				   struct dso *dso __maybe_unused,				   bool unwind_inlines __maybe_unused,				   struct inline_node *node __maybe_unused,				   struct symbol *sym __maybe_unused){	return 0;} static inline void dso__free_libdw(struct dso *dso __maybe_unused){}#endif /* HAVE_LIBDW_SUPPORT */ #endif /* PERF_LIBDW_H */