NAME
gelf_getsyminfo,
gelf_update_syminfo —
read and update symbol
information
LIBRARY
library “libelf”
SYNOPSIS
#include
<gelf.h>
GElf_Syminfo *
gelf_getsyminfo(Elf_Data
*data, int ndx,
GElf_Syminfo
*syminfo);
int
gelf_update_syminfo(Elf_Data
*data, int ndx,
GElf_Syminfo
*syminfo);
DESCRIPTION
These convenience functions are used to retrieve and update class-dependent Elf32_Syminfo and Elf64_Syminfo records in an ELF object.
Argument data is an
Elf_Data descriptor associated with a section of type
SHT_SUNW_syminfo. Argument ndx
is the index of the record being retrieved or updated. The class-independent
GElf_Syminfo structure is described in
gelf(3).
Function
gelf_getsyminfo()
retrieves class-dependent record at index ndx in data
buffer data and copies it to the destination pointed
to by argument syminfo after translation to
class-independent form.
Function
gelf_update_syminfo()
converts the class-independent record pointed to by argument
syminfo to class-dependent form, and writes it to the
record at index ndx in the data buffer described by
argument data.
RETURN VALUES
Function gelf_getsyminfo() returns the
value of argument syminfo if successful, or NULL in
case of an error. Function gelf_update_syminfo()
returns a non-zero value if successful, or zero in case of an error.
ERRORS
These functions may fail with the following errors:
- [
ELF_E_ARGUMENT] - Arguments data or syminfo were NULL.
- [
ELF_E_ARGUMENT] - Argument ndx was less than zero or larger than the number of symbols in the data descriptor.
- [
ELF_E_ARGUMENT] - Data descriptor data was not associated with a section containing symbol information.
- [
ELF_E_VERSION] - The Elf_Data descriptor denoted by argument data is associated with an ELF object with an unsupported version.
SEE ALSO
elf(3), elf_getdata(3), elf_getscn(3), gelf(3), gelf_getsym(3), gelf_update_sym(3)