gelf_getversym - Man Page

retrieve GNU symbol versioning entries

Synopsis

#include <gelf.h>

GElf_Versym  *gelf_getversym (Elf_Data *data, int ndx, GElf_Versym  *dst);
GElf_Verdef  *gelf_getverdef (Elf_Data *data, int offset, GElf_Verdef  *dst);
GElf_Verdaux *gelf_getverdaux(Elf_Data *data, int offset, GElf_Verdaux *dst);
GElf_Verneed *gelf_getverneed(Elf_Data *data, int offset, GElf_Verneed *dst);
GElf_Vernaux *gelf_getvernaux(Elf_Data *data, int offset, GElf_Vernaux *dst);

Description

These functions provide class-independent access to GNU ELF symbol version information. The requested entry is retrieved from data and stored in the caller-supplied dst.

gelf_getversym(): Retrieves the symbol version index at index ndx from the SHT_GNU_versym section associated with data.
gelf_getverdef(): Retrieves the version definition entry at section offset offset from the SHT_GNU_verdef section associated with data.
gelf_getverdaux(): Retrieves the version definition auxiliary entry at section offset offset from the SHT_GNU_verdef section associated with data.
gelf_getverneed(): Retrieves the version needed entry at section offset offset from the SHT_GNU_verneed section associated with data.
gelf_getvernaux(): Retrieves the version needed auxiliary entry at section offset offset from the SHT_GNU_verneed section associated with data.

Parameters

data: Pointer to an Elf_Data corresponding to the appropriate GNU versioning section.
ndx: (For gelf_getversym() only.) Zero-based index of the entry within data.
offset: (For gelf_getverdef(), gelf_getverdaux(), gelf_getverneed(), and gelf_getvernaux().) Section-relative byte offset of the entry within data.
dst: Pointer to a caller-provided entry of the appropriate type: GElf_Versym, GElf_Verdef, GElf_Verdaux, GElf_Verneed, or GElf_Vernaux. This argument must not be NULL.

On success, these functions store the requested entry in dst and return dst. On failure, these functions return NULL and set elf_errno. If data is NULL, then NULL is returned without setting elf_errno.