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  1. 20 9月, 2009 18 次提交
  3. 19 9月, 2009 1 次提交
  5. 16 9月, 2009 1 次提交
    • D
      sparc: Kill PROM console driver. · 09d3f3f0
      由 David S. Miller 提交于 
      Many years ago when this driver was written, it had a use, but these
days it's nothing but trouble and distributions should not enable it
in any situation.

Pretty much every console device a sparc machine could see has a
bonafide real driver, making the PROM console hack unnecessary.

If any new device shows up, we should write a driver instead of
depending upon this crutch to save us.  We've been able to take care
of this even when no chip documentation exists (sunxvr500, sunxvr2500)
so there are no excuses.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      09d3f3f0
  7. 22 8月, 2009 1 次提交
    • S
      kconfig: add missing dependency of conf to localyesconfig · 48586218
      由 Steven Rostedt 提交于 
      There's a dependency missing.

$ make localyesconfig
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/docproc
  HOSTCC  scripts/basic/hash
using config: '/boot/config-2.6.27.25-78.2.56.fc9.x86_64'
/bin/sh: line 8: scripts/kconfig/conf: No such file or directory
make[1]: *** [localyesconfig] Error 127
make: *** [localyesconfig] Error 2

Thus the script failed to run. But the sed command that converts the '=m'
to '=y' still ran. This gives us a distro config with all modules
converted to built in!

The missing dependency was for conf for localyesconfig. This
dependency was already set for localmodconfig.
Reported-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      48586218
  9. 19 8月, 2009 13 次提交
    • S
      kconfig: test if a .config already exists · a7c02602
      由 Steven Rostedt 提交于 
      If one were to run localmodconfig or localyesconfig without having
a .config already in the file, then the end of the process would give
a warning when it tries to move the old .config to .config.old.

This patch adds a test to check if .config exists and avoid the moves
if it does not.

[ Impact: remove warning after make localmodconfig ]
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      a7c02602
    • S
      kconfig: make local .config default for streamline_config · a9024838
      由 Steven Rostedt 提交于 
      As Andi Kleen pointed out, most people would expect that the local .config
file to be based for a streamline config. This patch changes the order
of searching for a config file to consider the .config in the local
directory first.
Reported-by: NAndi Kleen <andi@firstfloor.org>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      a9024838
    • S
      kconfig: test for /boot/config-uname after /proc/config.gz in localconfig · 810b2be6
      由 Steven Rostedt 提交于 
      Many distros put their config in /boot/config-`uname -r`, add a check
for that right after /proc/config.gz
Reported-by: NAlan Jenkins <sourcejedi.lkml@googlemail.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      810b2be6
    • S
      kconfig: unset IKCONFIG_PROC and clean up nesting · d08ca277
      由 Steven Rostedt 提交于 
      Due to cut and paste error IKCONFIG was both set and cleared.
It was suppose to be IKCONFIG_PROC to be cleared.

Also cleaned up if nesting.
Reported-by: NAlan Jenkins <sourcejedi.lkml@googlemail.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      d08ca277
    • S
      kconfig: search for a config to base the local(mod|yes)config on · cdfc4795
      由 Steven Rostedt 提交于 
      Instead of using the .config in the local directory. This patch
changes streamline_config.pl to search various locations for a config.

Here's the list and order of search:

  /proc/config.gz
  /boot/vmlinuz-`uname -r`
  vmlinux  # local to the directory
  /lib/modules/`uname -r`/kernel/kernel/configs.ko
  kernel/configs.ko
  kernel/configs.o
  .config

Once it finds a file that contains a config (it checks if the binary
objects have configs first) it then uses it to create the .config
with minimum modules needed.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      cdfc4795
    • S
      kconfig: have extract-ikconfig read ELF files · 6be51ffc
      由 Steven Rostedt 提交于 
      It would be nice to use extract-ikconfig to find the congfig.gz
in either vmlinux (not vmlinuz) or configs.ko.

This patch changes the script to also be able to read ELF files directly.

[ Impact: find config.gz in vmlinux and configs.ko ]
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      6be51ffc
    • S
      kconfig: add check if end exists in extract-ikconfig · fd3132d5
      由 Steven Rostedt 提交于 
      Both start and end should be tested for existence before continuing
to parse the config.gz file.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      fd3132d5
    • S
      kconfig: enable CONFIG_IKCONFIG from streamline_config.pl · 744ffcbe
      由 Steven Rostedt 提交于 
      Ingo Molnar suggested that the streamline_config.pl should enable
CONFIG_IKCONFIG to keep the current config in the kernel.
Then we can use scripts/extract-ikconfig to find the current
modules.

This patch changes streamline_config.pl to check if CONFIG_IKCONFIG
is not set, and if it is not, it enables it to be a module.

[ Impact: make current config options easier to find ]
Reported-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      744ffcbe
    • S
      kconfig: do not warn about modules built in · ea2c1894
      由 Steven Rostedt 提交于 
      The streamline_config.pl finds all the configs that are needed to
compile the currently loaded modules. After it creates the .config
file, it tests to make sure all the configs that are needed were
set.

It only looks at the configs that are modules, it does not look
at the builtin configs. This causes unnecessary warnings about modules
not being covered.
Reported-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      ea2c1894
    • S
      kconfig: streamline_config.pl do not stop with no depends · 74398d32
      由 Steven Rostedt 提交于 
      If a config does not have a prompt, it must be selected.
streamline_config.pl keeps track of all configs that select other configs.
If a config that does not have a prompt needs to be set to enable a
current module, it will include all configs that select it.
Note, streamline_config.pl does not enable modules that are not already
enabled. It only keeps enabled those that were enabled and might be
needed to compile the current modules.

The code to find the selects of a config is after the code that
adds the depends. But if a config needed selects but had no dependencies,
it would not be set. Because the code would stop before getting to
the select.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      74398d32
    • S
      kconfig: add make localyesconfig option · 281c9dad
      由 Steven Rostedt 提交于 
      This adds the option localyesconfig to make. This is similar to
localmodconfig, but after it removes unnecessary modules it runs

  sed -i s/=m/=y/

on the .config file. It then runs "make silentoldconfig" to fix any
wholes that were created by the conversion of modules to core.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      281c9dad
    • S
      kconfig: make localmodconfig to run streamline_config.pl · 03fa25da
      由 Steven Rostedt 提交于 
      Running the streamline_config.pl script manually can still be confusing
for some users. This patch adds the localmodconfig option. This will
automatically run streamline_config.pl on the current .config and
then run "make silentoldconfig" to fix any wholes that might have been
created.

 $ make localmodconfig

This will remove any module configurations in .config that are not needed
to compile the modules that are loaded.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      03fa25da
    • S
      kconfig: add streamline_config.pl to scripts · dcc60243
      由 Steven Rostedt 提交于 
      streamline_config.pl is a very powerful tool. For those that install
a kernel to a new box using the config file from the distribution know that
it can take forever to compile the kernel.

Making a custom config file that will still boot your box, but bring
down the compile time of the kernel can be quit painful, and to ask
someone that reported a bug to do this can be a large burdon since that
person may not even know how to build a kernel.

This script will perform "lsmod" to find all the modules loaded on the
current running system. It will read all the Makefiles to map which
CONFIG enables a module. It will read the Kconfig files to find the
dependencies and selects that may be needed to support a CONFIG.
Finally, it reads the .config file and removes any module "=m" that is
not needed to enable the currently loaded modules. The output goes to
standard out.

Here's a way to run the script. From the Linux directory that holds
a distribution .config.

 $ scripts/kconfig/streamline_config.pl arch/x86/Kconfig > config-sl
 $ mv .config config-save
 $ mv config-sl .config
 $ make oldconfig

Now you have a .config that will still build all your modules, but also
take much less time to build the kernel.
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      dcc60243
  11. 07 8月, 2009 1 次提交
  13. 06 8月, 2009 1 次提交
    • S
      tracing: do not use functions starting with .L in recordmcount.pl · 3f6e968e
      由 Steven Rostedt 提交于 
      On Wed, 5 Aug 2009, Ingo Molnar wrote:
> * Dave Airlie <airlied@gmail.com> wrote:
>
> > Hey,
> >
> > So I spent 3-4 hrs today (I'm stupid yes) tracking down a .o
> > breakage by blaming rawhide gcc/binutils as I was using make
> > V=1and seeing only the compiler chain running,
>
> Hm, is this that powerpc related build bug you just reported?

Well we tracked it down and it is powerpc64 specific.

Seems that in drivers/hwmon/lm93.c there's a function called:

   LM93_IN_FROM_REG()

But PPC64 has function descriptors and the real function names (the ones
you see in objdump) start with a '.'. Thus this in objdump you have:

 Disassembly of section .text:

 0000000000000000 <.LM93_IN_FROM_REG>:
       0:       7c 08 02 a6     mflr    r0
       4:       fb 81 ff e0     std     r28,-32(r1)

The function name used is .LM93_IN_FROM_REG. But gcc considers symbols
that start with ".L" as a special symbol that is used inside the assembly
stage.

The nm passed into recordmcount uses the --synthetic option which shows
the ".L" symbols (my runs outside of the build did not include the
--synthetic option, so my older patch worked). We see the function as a
local.

Now to capture all the locations that use "mcount" we need to have a
reference to link into the object file a list of mcount callers. We need a
reference that will not disappear. We try to use a global function and if
that does not work, we use a local function as a reference. But to relink
the section back into the object, we need to make it global. In this case,
we run objcopy using --globalize-symbol and --localize-symbol to convert
the symbol into a global symbol, link the mcount list, then convert it
back to a local symbol.

This works great except for this case. .L* symbols can not be converted
into a global symbol, and the mcount section referencing it will remain
unresolved.
Reported-by: NDave Airlie <airlied@gmail.com>
LKML-Reference: <alpine.DEB.2.00.0908052011590.5010@gandalf.stny.rr.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      3f6e968e
  15. 30 7月, 2009 4 次提交