config - Builds system configuration files
/sys/conf/config [-k] [-p] [-q] [system_name]
Creates a define variable 'KDEBUG' that can be used to
conditionally compile source code for kernel debugging.
Configure the system for profiling. You must have sources
to use this option. Concatenates and displays all the
system configuration files, including any configuration
files described in the /sys/conf/NAME.list file.
The doconfig command calls the config command to build a
set of system configuration files from a file that
describes the sort of system that is being configured.
The config command also takes as input another file that
tells it what files are needed to generate a system. This
other file can be augmented by a configuration-specific
set of files that name alternate files for a specific
Normally, you should run the doconfig program and not the
config command. If you need to issue the config command,
be sure to change your directory to the /sys/conf directory.
As an argument to the config command, specify the
name of a system configuration file containing device
specifications, configuration options and other system
operands for that specific system configuration. The config
command places all its output files in the directory
The output of config consists of a number of files; each
machine type has its own specific set of files. All
machine types have a makefile which is used by make during
the system build. Typically, there are also a set of
header files which contain definitions of the number of
various devices that will be compiled into the system, and
a set of swap configuration files contain definitions for
the disk areas to be used for swapping, the root file system,
argument processing, and system dumps.
After running config, you run make depend in the directory
where the new makefile was created.
If any other error messages are produced by config, the
problems in the configuration file should be corrected and
config should be run again. Attempts to compile a system
that had configuration errors are likely to be unsuccessful.
The line numbers reported in error messages are usually
off by one.
List of common files used to build the system List of
files specific to NAME, where NAME is the value specified
for the ident option in the system configuration file
Machine-independent portion of the makefile template used
for building kernels from binaries Machine-independent
portion of the makefile template used for building kernels
from sources Machine-dependent portion of the makefile
template List of machine-specific files Machine-specific
name to major device mapping file
Commands: make(1), doconfig(8)
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