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GELF_UPDATE_VERSYM
Section: Libelf Programmer's Manual (3)Updated: 202-0-27
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NAME
gelf_update_versym, gelf_update_verdef, gelf_update_verdaux, gelf_update_verneed, gelf_update_vernaux - modify class-independent symbol versioning recordsSYNOPSIS
#include <gelf.h> int gelf_update_versym (Elf_Data *data, int ndx, GElf_Versym *src); int gelf_update_verdef (Elf_Data *data, int offset, GElf_Verdef *src); int gelf_update_verdaux(Elf_Data *data, int offset, GElf_Verdaux *src); int gelf_update_verneed(Elf_Data *data, int offset, GElf_Verneed *src); int gelf_update_vernaux(Elf_Data *data, int offset, GElf_Vernaux *src);
DESCRIPTION
These functions provide class-independent modification of GNU ELF symbol versioning sections. Each function copies the contents of the caller-supplied src into the symbol versioning entry at the specified index or offset within data.
- gelf_update_versym()
-
Write a symbol version index into the
SHT_GNU_versym
section associated with
data
at index
ndx.
- gelf_update_verdef()
-
Write a version definition entry into the
SHT_GNU_verdef
section associated with
data
at section offset
offset.
- gelf_update_verdaux()
-
Write a version definition auxiliary entry into the
SHT_GNU_verdef
section associated with
data
at section offset
offset.
- gelf_update_verneed()
-
Write a version needed entry into the
SHT_GNU_verneed
section associated with
data
at section offset
offset.
- gelf_update_vernaux()
-
Write a version needed auxiliary entry into the
SHT_GNU_verneed
section associated with
data
at section offset
offset.
PARAMETERS
- data
-
Elf_Data
pointer corresponding to the appropriate GNU symbol versioning section.
- ndx
-
(For
gelf_update_versym()
only.)
Zero-based index of the entry within
data.
- offset
-
(For
gelf_update_verdef(),
gelf_update_verdaux(),
gelf_update_verneed(),
and
gelf_update_vernaux().)
Section-relative byte offset of the entry within
data.
- src
-
Pointer to the caller-supplied symbol:
GElf_Versym,
GElf_Verdef,
GElf_Verdaux,
GElf_Verneed,
or
GElf_Vernaux
as appropriate.
This argument must not be NULL.
RETURN VALUE
On success, these functions store the requested entry in src, mark the section corresponding to data with ELF_F_DIRTY and return a no-zero value. On failure, 0 is returned and elf_errno is set. If data is NULL, 0 is returned without setting elf_errno.SEE ALSO
gelf_getverdaux(3), gelf_getverdef(3), gelf_getvernaux(3), gelf_getverneed(3), gelf_getversym(3), libelf(3), elf(5)ATTRIBUTES
| Interface | Attribute | Value |
|
gelf_update_versym(),
gelf_update_verdef(), gelf_update_verdaux(), gelf_update_verneed(), gelf_update_vernaux() | Thread safety | M-Safe |
REPORTING BUGS
Report bugs to <elfutil-devel@sourceware.org> or https://sourceware.org/bugzilla/.