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.TH ELF_FILL 3 2025-03-31 "Libelf" "Libelf Programmer's Manual"
.SH NAME
elf_fill \- Set fill byte used when constructing or editing ELF object files.
.SH SYNOPSIS
.nf
#include <libelf.h>
.BI "void elf_fill(int " fill ");"
.SH DESCRIPTION
The
.B elf_fill
function sets the fill byte used by libelf to pad new gaps between ELF sections
or data elements when an ELF object file is resized or realigned using
.BR elf_update .
The default fill byte used by libelf is zero.
.SH PARAMETERS
.TP
.I fill
The value used to fill gaps in future writes to ELF objects. This value
should be between 0 and 255 (inclusive). Only the least significant
8 bits are used.
.SH RETURN VALUE
.B elf_fill
returns no value.
.SH SEE ALSO
.BR elf_update (3),
.BR libelf (3),
.BR elf (5)
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lbx lb lb
l l l.
Interface Attribute Value
T{
.na
.nh
.BR elf_fill ()
T} Thread safety MT-Unsafe race
.TE
.SH REPORTING BUGS
Report bugs to <elfutils-devel@sourceware.org> or https://sourceware.org/bugzilla/.
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