NAME

dwarf_get_elf — retrieve the Elf descriptor associated with a Dwarf_Debug instance

LIBRARY

DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

#include <libdwarf.h>

int
dwarf_get_elf(Dwarf_Debug dbg, Elf **elf, Dwarf_Error *err);

DESCRIPTION

Function dwarf_get_elf() returns the Elf descriptor associated with a Dwarf_Debug instance.

Argument dbg should be a handle to a valid Dwarf_Debug instance returned by a prior call to dwarf_init(3) or dwarf_elf_init(3).

Argument elf points a location into which a handle to an Elf descriptor will be written.

Argument err is used to record error information in case of failure.

RETURN VALUES

On success, function dwarf_get_elf() returns DW_DLV_OK. In case of an error, it returns DW_DLV_ERROR and sets argument err.

EXAMPLES

To retrieve the Elf instance associated with a Dwarf_Debug instance use:

Dwarf_Debug dbg;
Dwarf_Error de;
Elf *elf;

... allocate dbg using dwarf_init() etc ...

if (dwarf_get_elf(dbg, &elf, &de) != DW_DLV_OK)
	errx(EXIT_FAILURE, "dwarf_get_elf: %s", dwarf_errmsg(de));