gelf_getsyminfo,
gelf_update_syminfo —
read and update symbol information
ELF Access Library (libelf, -lelf)
#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);
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.
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.
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.
elf(3),
elf_getdata(3),
elf_getscn(3),
gelf(3),
gelf_getsym(3),
gelf_update_sym(3)