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/* 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 */
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