DWARF_GET_ELF(3) | Library Functions Manual | DWARF_GET_ELF(3)

# 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));

# SEE ALSO

dwarf(3), dwarf_errmsg(3), dwarf_init(3), dwarf_finish(3), elf(3)

November 9, 2011 | NetBSD 9.1