NAME
gelf_update_auxv - Update information in the auxiliary vector at the given index
SYNOPSIS
#include <gelf.h> int gelf_update_auxv (Elf_Data *data, int ndx, GElf_auxv_t *src);
DESCRIPTION
Copy a class-independent auxiliary vector entry from src into the NT_AUXV note associated with data at index ndx. See getauxval(3) for more information regarding the auxiliary vector.
PARAMETERS
- data
-
Pointer to an Elf_Data associated with an NT_AUXV ELF note. data->d_type should be ELF_T_AUXV. NT_AUXV notes are normally found in core files. The auxiliary vector can also be read directly from /proc/PID/auxv of a live process, in which case this function does not write back to data itself.
- ndx
-
Zero-based index of the auxiliary vector entry to be updated within data.
- src
-
Pointer to a caller-provided auxiliary vector entry. For ELFCLASS32 binaries, a_type and a_val must fit within unsigned 32-bit values. src must not be NULL.
RETURN VALUE
On success, this function returns a non-zero value, updates the auxiliary vector entry at index ndx in data, and marks the section or segment associated with data with ELF_F_DIRTY. On failure, zero is returned and elf_errno is set. If data is NULL, then zero is returned without setting elf_errno.
SEE ALSO
ATTRIBUTES
| Interface | Attribute | Value |
| gelf_update_auxv() | Thread safety | MT-Safe |
REPORTING BUGS
Report bugs to <[email protected]> or https://sourceware.org/bugzilla/.