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  1. 02 Feb, 2010 6 commits
    • nir.tzachar@gmail.com's avatar
      kconfig: new configuration interface (nconfig) · 692d97c3
      nir.tzachar@gmail.com authored 
      This patch was inspired by the kernel projects page, where an ncurses
replacement for menuconfig was mentioned (by Sam Ravnborg).

Building on menuconfig, this patch implements a more modern look
interface using ncurses and ncurses' satellite libraries (menu, panel,
form). The implementation does not depend on lxdialog, which is
currently distributed with the kernel.
Signed-off-by: default avatarNir Tzachar <nir.tzachar@gmail.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      692d97c3
    • Alexander Beregalov's avatar
      genksyms: close ref_file after use · c64152bf
      Alexander Beregalov authored 
      It is the last place when the file is read, so close it.
Signed-off-by: default avatarAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      c64152bf
    • Vadim Bendebury (вб)'s avatar
      menuconfig: wrap long help lines · da60fbbc
      Vadim Bendebury (вб) authored 
      Help text for certain config options is very extensive (the text
includes the names of all  other options the option in question depends
on). Long lines are not wrapped, making it impossible to see the list
without scrolling horizontally.

This patch adds some logic which wraps help screen lines at word
boundaries to prevent truncating.

Tested by running

  ARCH=powerpc make menuconfig O=/tmp/build

which shows that the long lines are now wrapped, and

 ARCH=powerpc make xconfig O=/tmp/build

to demonstrate that it still compiles and operates as expected.
Signed-off-by: default avatarVadim Bendebury <vbendeb@google.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      da60fbbc
    • Rabin Vincent's avatar
      scripts: add ARM support to decodecode · 5358db0b
      Rabin Vincent authored 
      This patch adds support for decoding ARM oopses to scripts/decodecode.
The following things are handled:

 - ARCH and CROSS_COMPILE environment variables are respected.

 - The Code: in x86 oopses is in bytes, while it is in either words (4
   bytes) or halfwords for ARM.

 - Some versions of ARM objdump refuse to disassemble instructions
   generated by literal constants (".word 0x...").  The workaround is to
   strip the object file first.

 - The faulting instruction is marked (liked so) in ARM, but <like so>
   in x86.

 - ARM mnemonics may include characters such as [] which need to be
   escaped before being passed to sed for the "<- trapping instruction"
   substitution.
Signed-off-by: default avatarRabin Vincent <rabin@rab.in>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      5358db0b
    • Roland McGrath's avatar
      kconfig CROSS_COMPILE option · 84336466
      Roland McGrath authored 
      This adds CROSS_COMPILE as a kconfig string so you can store it in
.config.  Then you can use plain "make" in the configured kernel build
directory to do the right cross compilation without setting the
command-line or environment variable every time.

With this, you can set up different build directories for different kernel
configurations, whether native or cross-builds, and then use the simple:

	make -C /build/dir M=module-source-dir

idiom to build modules for any given target kernel, indicating which one
by nothing but the build directory chosen.

I tried a version that defaults the string with env="CROSS_COMPILE" so
that in a "make oldconfig" with CROSS_COMPILE in the environment you can
just hit return to store the way you're building it.  But the kconfig
prompt for strings doesn't give you any way to say you want an empty
string instead of the default, so I punted that.
Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Anibal Monsalve Salazar <anibal@debian.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      84336466
    • Jiafu He's avatar
      kbuild: Fix linking error built-in.o no such file or directory · 4b024242
      Jiafu He authored 
      This patch fixes the link error "built-in.o: no such file or directory".
The problem happens if "dirx/Makefile" contains only "obj-m += diry/
dirz/" and the empty "dirx/built-in.o" is missing. Adding $(subdir-m)
into check for builtin-target fixes this error.
Signed-off-by: default avatarJiafu He <jay@goldhive.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
      4b024242
  3. 29 Jan, 2010 13 commits
  5. 28 Jan, 2010 16 commits
  7. 27 Jan, 2010 5 commits
    • David VomLehn's avatar
      MIPS: PowerTV: Fix support for timer interrupts with > 64 external IRQs · 010c108d
      David VomLehn authored 
      The MIPS processor is limited to 64 external interrupt sources. Using a
greater number without IRQ sharing requires reading platform-specific
registers. On such platforms, reading the IntCtl register to determine
which interrupt corresponds to a timer interrupt will not work.

On MIPSR2 systems there is a solution - the TI bit in the Cause register,
specifically indicates that a timer interrupt has occured. This patch uses
that bit to detect interrupts for MIPSR2 processors, which may be expected
to work regardless of how the timer interrupt may be routed in the hardware.

Signed-off-by: David VomLehn (dvomlehn@cisco.com)
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/804/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      010c108d
    • David VomLehn's avatar
      MIPS: PowerTV: Streamline access to platform device registers · 59dfa2fc
      David VomLehn authored 
      Pre-compute addresses for the basic ASIC registers. This speeds up access
and allows memory for unused configurations to be freed. In addition,
uninitialized register addresses will be returned as NULL to catch bad
usage quickly.
Signed-off-by: default avatarDavid VomLehn <dvomlehn@cisco.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/806/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      59dfa2fc
    • Alexander Clouter's avatar
      MIPS: Fix vmlinuz build for 32bit-only math shells · 9c4a6fce
      Alexander Clouter authored 
      POSIX requires $((<expression>)) arithmetic in sh only to have long
arithmetic so on 32-bit sh binaries might do only 32-bit arithmetic but
the arithmetic done in arch/mips/boot/compressed/Makefile needs 64-bit.

I play with the AR7 platform, so VMLINUX_LOAD_ADDRESS is
0xffffffff94100000, and for an example 4MiB kernel
VMLINUZ_LOAD_ADDRESS is made out to be:
----
alex@berk:~$ bash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))'
ffffffff94500000
alex@berk:~$ dash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))'
80000000003fffff
----

The former is obviously correct whilst the later breaks things royally.

Fortunately working with only the lower 32bit's works for both bash and
dash:
----
$ bash -c 'printf "%x\n" $((0x94100000 + 0x400000))'
94500000
$ dash -c 'printf "%x\n" $((0x94100000 + 0x400000))'
94500000
----

So, we can split the original 64bit string to two parts, and only
calculate the low 32bit part, which is big enough (1GiB kernel sizes
anyone?) for a normal Linux kernel image file, now, we calculate the
VMLINUZ_LOAD_ADDRESS like this:

1. if present, append top 32bit of VMLINUX_LOAD_ADDRESS" as a prefix
2. get the sum of the low 32bit of VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE

This patch fixes vmlinuz kernel builds on systems where only a
32bit-only math shell is available.

Patch Changelog:
  Version 2
    - simplified method by using 'expr' for 'substr' and making it work
	with dash once again
  Version 1
    - Revert the removals of '-n "$(VMLINUX_SIZE)"' to avoid the error
        of "make clean"
    - Consider more cases of the VMLINUX_LOAD_ADDRESS
  Version 0
    - initial release
Signed-off-by: default avatarAlexander Clouter <alex@digriz.org.uk>
Acked-by: default avatarWu Zhangjin <wuzhangjin@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/861/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      9c4a6fce
    • Wu Zhangjin's avatar
      MIPS: Add support of LZO-compressed kernels · fe1d45e0
      Wu Zhangjin authored 
      The necessary changes to the x86 Kconfig and boot/compressed to allow the
use of this new compression method.
Signed-off-by: default avatarWu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Patchwork: http://patchwork.linux-mips.org/patch/857/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      fe1d45e0
    • Russell King's avatar
      Merge branch 'for-rmk' of git://git.marvell.com/orion · 00e4acb1
      Russell King authored
      00e4acb1
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