architecture. Contrary to popular myth, the bzImage is not a bzip2 -compressed image. It is a big zImage. Without going into the details of legacy PC architecture, it is enough to know that a bzImage is suitable only for PC- compatible machines with an industry-standard PC-style BIOS.
Listing 4-7 contains the output from make help from a recent Linux kernel. You can see from the listing that many targets are available in the top-level Linux kernel makefile. Each is listed along with a short description of its use. It is important to realize that even the help make target (as in make help) is architecture specific. You get a different list of architecture-specific targets depending on the architecture you pass on the make invocation. Listing 4-7 illustrates an invocation that specifies the ARM architecture, as you can see from the make command line.
Listing 4-7. Makefile Targets
$ make ARCH=arm help
Cleaning targets:
clean - remove most generated files but keep the config
mrproper - remove all generated files + config + various backup files
Configuration targets:
config - Update current config utilising a line-oriented program
menuconfig - Update current config utilising a menu based program
xconfig - Update current config utilising a QT based front-end
gconfig - Update current config utilising a GTK based front-end
oldconfig - Update current config utilising a provided .config as base
randconfig - New config with random answer to all options
defconfig - New config with default answer to all options
allmodconfig - New config selecting modules when possible
allyesconfig - New config where all options are accepted with yes
allnoconfig - New minimal config
Other generic targets:
all - Build all targets marked with [*]
* vmlinux - Build the bare kernel
* modules - Build all modules
modules_install - Install all modules
dir/ - Build all files in dir and below
dir/file.[ois] - Build specified target only
dir/file.ko - Build module including final link
rpm - Build a kernel as an RPM package
tags/TAGS - Generate tags file for editors
cscope - Generate cscope index
kernelrelease - Output the release version string
Static analysers
buildcheck - List dangling references to vmlinux discarded sections and
init sections from non-init sections
checkstack - Generate a list of stack hogs
namespacecheck - Name space analysis on compiled kernel
Kernel packaging:
rpm-pkg - Build the kernel as an RPM package
binrpm-pkg - Build an rpm package containing the compiled kernel and
modules
deb-pkg - Build the kernel as an deb package
tar-pkg - Build the kernel as an uncompressed tarball
targz-pkg - Build the kernel as a gzip compressed tarball
tarbz2-pkg - Build the kernel as a bzip2 compressed tarball
Documentation targets:
Linux kernel internal documentation in different formats:
xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF)
htmldocs (HTML), mandocs (man pages, use installmandocs to install)
Architecture specific targets (arm):
* zImage - Compressed kernel image (arch/arm/boot/zImage)
Image - Uncompressed kernel image (arch/arm/boot/Image)
* xipImage - XIP kernel image, if configured (arch/arm/boot/xipImage)
bootpImage - Combined zImage and initial RAM disk
(supply initrd image via make variable INITRD=<path>)
install - Install uncompressed kernel
zinstall - Install compressed kernel
Install using (your) ~/bin/installkernel or
(distribution) /sbin/installkernel or
install to $(INSTALL_PATH) and run lilo
assabet_defconfig - Build for assabet
badge4_defconfig - Build for badge4
bast_defconfig - Build for bast
cerfcube_defconfig - Build for cerfcube
clps7500_defconfig - Build for clps7500
collie_defconfig - Build for collie
corgi_defconfig - Build for corgi
ebsa110_defconfig - Build for ebsa110
edb7211_defconfig - Build for edb7211
enp2611_defconfig - Build for enp2611
ep80219_defconfig - Build for ep80219
epxa10db_defconfig - Build for epxa10db
footbridge_defconfig - Build for footbridge
fortunet_defconfig - Build for fortunet
h3600_defconfig - Build for h3600
h7201_defconfig - Build for h7201
h7202_defconfig - Build for h7202
hackkit_defconfig - Build for hackkit
integrator_defconfig - Build for integrator
iq31244_defconfig - Build for iq31244
iq80321_defconfig - Build for iq80321
iq80331_defconfig - Build for iq80331
iq80332_defconfig - Build for iq80332
ixdp2400_defconfig - Build for ixdp2400
ixdp2401_defconfig - Build for ixdp2401
ixdp2800_defconfig - Build for ixdp2800
ixdp2801_defconfig - Build for ixdp2801
ixp4xx_defconfig - Build for ixp4xx
