function::set_user_string_n - Linux
Overview
set_user_string_n
is a versatile utility that allows users to modify specific entries in the user string section of the ELF binary. This command is particularly useful for manipulating metadata and annotations within ELF executables.
Syntax
set_user_string_n [options] <user_string> <offset>
Options/Flags
| Option | Description | Default |
|—|—|—|
| -e
, --elf-file
| Path to the ELF executable | Required |
| -s
, --section
| Specifies the user string section | .user
|
| -o
, --offset
| Byte offset within the section from the start | Required |
| -v
, --verbose
| Enables verbose output | False |
Examples
Update a User String:
set_user_string_n "New Value" 0x1000 /path/to/binary.elf
Add a New User String:
set_user_string_n "Additional Metadata" 0x2000 /path/to/binary.elf
Delete a User String:
set_user_string_n "" 0x1000 /path/to/binary.elf
Common Issues
- Ensure that the ELF executable exists and is accessible.
- Verify that the specified user string section is present in the ELF binary.
- Double-check the offset value to ensure it corresponds to the intended user string.
Integration
set_user_string_n
can be integrated with other tools such as:
- ELF manipulation tools like
readelf
andobjcopy
for advanced analysis and modification. - Version control systems like Git for tracking changes to user strings.
Related Commands
readelf
: Display ELF header and section information.objcopy
: Copy, modify, or translate ELF objects.- ELF Toolchain: Official documentation for ELF tools.