Apple Darwin Bedienungsanleitung PDF herunterladen (Seite 6)

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Chapter 7: Building the Darwin Kernel

To build the kernel, use this command (the output is not shown):

% make

When make is finished, you should see mach_kernel in the xnu/BUILD/obj/

RELEASE_PPC directory. Before you install the new kernel, back up your

old kernel as follows:

% sudo cp /mach_kernel /mach_kernel.backup

Next, copy the new kernel over the older version:

% sudo cp BUILD/obj/RELEASE_PPC/mach_kernel /

Cross your fingers, knock on wood, and reboot. If all goes well, you should

see the build time, hostname, and your username (since you’re the person

who compiled the kernel) when you run uname -v:

Darwin Kernel Version 6.0: Thu Aug 22 15:52:19 EDT 2002;

bjepson:BUILD/obj/RELEASE_PPC

Once you’ve made it that far, you can start modifying the code or experi-

menting with unofficial patches!

Kernel Conﬁguration

Darwin includes configuration directories for each major component of the

operating system, as listed here:

xnu/bsd/conf

Contains configuration files for the BSD portions of Darwin.

xnu/iokit/conf

Contains configuration files for IOKit, Darwin’s subsystem for device

drivers.

xnu/libkern/conf

Contains configuration files for libkern, a set of base classes for kernel

C++ code.

xnu/libsa/conf

Contains configuration files for implementations of standard C library

functions that are used by the kernel.

xnu/osfmk/conf

Contains configuration files for the Mach portions of Darwin.

xnu/pexpert/conf

Contains configuration files for pexpert (platform expert). This is for

low-level hardware support during the boot sequence.

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Apple Darwin Bedienungsanleitung Seite 6