linux-toradex.git/arch/arm/boot/Makefile, branch v3.17

arm, kbuild: make "make install" not depend on vmlinux

2013-10-02T20:30:35+00:00

Install targets (install, zinstall, uinstall) on arm have a dependency
to vmlinux. This may cause parts of the kernel to be rebuilt during
installation. We must avoid this since this may run as root. Install
targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

 http://lkml.org/lkml/2013/7/10/600

So on arm and maybe other archs we need the same as for x86:

 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This patch fixes this for arm. Dependencies are removed and instead a
check to install.sh is added for the files that are needed.

This issue was uncovered by this build error where the -j option is
used in conjunction with install targets:

 $ make 
 $ make  zinstall
 ...
   DEPMOD
 Usage: .../scripts/depmod.sh /sbin/depmod 

(INSTALL_MOD_PATH and INSTALL_PATH variables set, so no root perms
required in this case.)

The problem is that zinstall on arm due to its dependency to vmlinux
does a prepare/prepare3 and finally does a forced rewrite of
kernel.release even if it exists already.

Rebuilding kernel.release removes it first and then recreates it. This
might race with another parallel make job running depmod.

So this patch should fix this one too.

Also quoting $(KERNELRELEASE) arg for install.sh as this messes
argument order in case it is empty (which is the case if the kernel
was not built yet).

Signed-off-by: Robert Richter 
Signed-off-by: Robert Richter 
Acked-by: Michal Marek .
Acked-by: Linus Torvalds 
Signed-off-by: "Yann E. MORIN" 
Signed-off-by: Michal Marek

ARM: dts: remove generated .dtb files on clean

2013-03-05T01:15:35+00:00

commit 5f300acd8ae9f3d4585154370012ffc5c665330f
(ARM: 7152/1: distclean: Remove generated .dtb files)
ensured that dtbs were cleaned up when they were in
arch/arm/boot.
However, with the following commit:
commit 499cd8298628eeabf0eb5eb6525d4faa0eec80d8
(ARM: dt: change .dtb build rules to build in dts directory)

make clean now leaves dtbs in arch/arm/boot/dts/
untouched. Include dts directory so that clean-files rule
from arch/arm/boot/dts/Makefile is invoked when make
clean is done.

Cc: Dirk Behme 
CC: Grant Likely 

Signed-off-by: Nishanth Menon 
Signed-off-by: Olof Johansson

ARM: 7656/1: uImage: Error out on build of multiplatform without LOADADDR

2013-02-23T14:06:27+00:00

On multiplatform kernels, $MACHINE will be empty so there will be no
default LOADADDR. Fail to build the uImage target unless one is provided by the
developer at build time.

Signed-off-by: Olof Johansson 
Acked-by: Nicolas Pitre 
Signed-off-by: Russell King

Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

2012-12-11T19:30:41+00:00

Pull device tree changes from Grant Likely:
 "Here are the DT changes I've got queued up for v3.8.  As described
  below, there are a lot of bug fixes here and documentation updates but
  nothing major:

  Bug fixes, little cleanups, and documentation changes.  The most
  invasive thing here touches a bunch of the arch directories to use a
  common build rule for .dtb files.  There are no major changes to
  functionality here other than a few new helper functions."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
  arm64: Fix the dtbs target building
  mtd: nand: davinci: fix the binding documentation
  rtc: rtc-mv: Add the device tree binding documentation
  devicetree/bindings: Move gpio-leds binding into leds directory
  of/vendor-prefixes: add Imagination Technologies
  microblaze: use new common dtc rule
  c6x: use new common dtc rule
  openrisc: use new common dtc rule
  arm64: Add dtbs target for building all the enabled dtb files
  arm64: use new common dtc rule
  ARM: dt: change .dtb build rules to build in dts directory
  kbuild: centralize .dts->.dtb rule
  Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes"
  of/spi: Honour "status=disabled" property of device
  of_mdio: Honour "status=disabled" property of device
  of_i2c: Honour "status=disabled" property of device
  powerpc: Fix fallout from device_node->name constification
  of: add 'const' for of_parse_phandle parameter *np
  Documentation: correct of_platform_populate() argument list
  script: dtc: clean generated files
  ...

ARM: dt: change .dtb build rules to build in dts directory

2012-12-03T18:48:44+00:00

The current rules have the .dtb files build in a different directory
from the .dts files. The only reason for this is that it was what
PowerPC has done historically. This patch changes ARM to use the generic
dtb rule which builds .dtb files in the same directory as the source .dts.

Cc: Russell King 
Cc: Arnd Bergmann 
Acked-by: Olof Johansson 
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Grant Likely 
[swarren: added rm command for old stale .dtb files]
Signed-off-by: Stephen Warren 
Signed-off-by: Rob Herring

ARM: boot: Fix usage of kecho

2012-11-12T22:22:54+00:00

Since commit edc88ceb0 (ARM: be really quiet when building with 'make -s') the
following output is generated when building a kernel for ARM:

echo '  Kernel: arch/arm/boot/Image is ready'
  Kernel: arch/arm/boot/Image is ready
  Building modules, stage 2.
echo '  Kernel: arch/arm/boot/zImage is ready'
  Kernel: arch/arm/boot/zImage is ready

As per Documentation/kbuild/makefiles.txt the correct way of using kecho is
'@$(kecho)'.

Make this change so no more unwanted 'echo' messages are displayed.

Signed-off-by: Fabio Estevam 
Signed-off-by: Arnd Bergmann

ARM: be really quiet when building with 'make -s'

2012-10-09T18:29:05+00:00

Sometimes we want the kernel build process to only print messages
on errors, e.g. in automated build testing. This uses the "kecho"
macro that the build system provides to hide a few informational
messages. Nothing changes for a regular "make" or "make V=1".

Without this patch, building any ARM kernel results in:

  Kernel: arch/arm/boot/Image is ready
  Kernel: arch/arm/boot/zImage is ready

Signed-off-by: Arnd Bergmann 
Acked-by: Nicolas Pitre 
Cc: Russell King 
Cc: Catalin Marinas 
Cc: Michal Marek

ARM: move all dtb targets out of Makefile.boot

2012-09-14T14:22:04+00:00

In preparation to support multi-platform kernels, move all the dtb targets
out of the mach Makefile.boot and into the arch/arm/boot/dts/Makefile
which is closer to the sources.

DTBs are only built when CONFIG_OF is enabled and now use top level
CONFIG_ARCH_xxx instead of chip or board specific config options.

Signed-off-by: Rob Herring 
Cc: Russell King 
Cc: Andrew Victor 
Cc: Nicolas Ferre 
Cc: Jean-Christophe Plagniol-Villard 
Cc: Kukjin Kim 
Cc: Sascha Hauer 
Cc: Jason Cooper 
Cc: Andrew Lunn 
Cc: Gregory Clement 
Acked-by: Shawn Guo 
Cc: Viresh Kumar 
Cc: Shiraz Hashim 
Cc: Rajeev Kumar 
Cc: Stephen Warren 
Cc: Srinidhi Kasagar 
Cc: Linus Walleij

Kbuild: centralize MKIMAGE and cmd_uimage definitions

2012-03-26T13:49:20+00:00

All ARCHs have the same definition of MKIMAGE. Move it to Makefile.lib
to avoid duplication.

All ARCHs have similar definitions of cmd_uimage. Place a sufficiently
parameterized version in Makefile.lib to avoid duplication.

Signed-off-by: Stephen Warren 
Acked-by: Nicolas Pitre 
Tested-by: Mike Frysinger  [Blackfin]
Tested-by: Michal Simek  [Microblaze]
Tested-by: Guan Xuetao  [unicore32]
Signed-off-by: Michal Marek

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2012-01-16T22:34:54+00:00

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Kbuild: Use dtc's -d (dependency) option
  dtc: Implement -d option to write out a dependency file
  kbuild: Fix comment in Makefile.lib
  scripts/genksyms: clean lex/yacc generated files
  kbuild: Correctly deal with make options which contain an "s"