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  1. 26 4月, 2008 6 次提交
    • R
      kbuild: Add new Kbuild variable KBUILD_EXTRA_SYMBOLS · 0d96fb20
      由 Richard Hacker 提交于 
      This patch adds a new (Kbuild) Makefile variable KBUILD_EXTRA_SYMBOLS.
The space separated list of file names assigned to KBUILD_EXTRA_SYMBOLS
is used when calling scripts/mod/modpost during stage 2 of the Kbuild
process for non-kernel-tree modules.
Signed-off-by: NRichard Hacker <lerichi@gmx.net>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      0d96fb20
    • R
      kbuild: support loading extra symbols in modpost · 2d04b5ae
      由 Richard Hacker 提交于 
      This patch adds a new command line option -E to modpost, expecting a symbol
file as an argument which is read prior to symbol processing. -E can be
supplied multiple times for as many files as is needed.

When building kernel modules that depend on other modules not in the main
kernel tree, modpost complains about undefined symbols:
# make -C /path/to/linux/kernel M=/path/to/my/module
...
Building modules, stage 2.
....
WARNING: "rt_copy_buf" [/home/rich/osc_etl_rtw/osc_kmod.ko] undefined!
...etc

This situation occurs when modpost processes the new module's symbols. When
it finds symbols not exported by the mainline kernel, it issues this warning.

The patch adds a new command line option -e to modpost which expects a symbol
file as an argument. The symbols listed in this file are added to modpost's
symbol tables during startup. -e can be supplied as often as required.

This patch works together with the second patch. It introduces a new make
variable, KBUILD_EXTRA_SYMBOLS, which is used when calling modpost.
Signed-off-by: NRichard Hacker <lerichi@gmx.net>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      2d04b5ae
    • A
      Add option to enable -Wframe-larger-than= on gcc 4.4 · 35bb5b1e
      由 Andi Kleen 提交于 
      Add option to enable -Wframe-larger-than= on gcc 4.4

gcc mainline (upcoming 4.4) added a new -Wframe-larger-than=...
option to warn at build time about too large stack frames. Add a config
option to enable this warning, since this very useful for the kernel.

I choose (somewhat arbitarily) 2048 as default warning threshold for 64bit
and 1024 as default for 32bit architectures.  With some research and
fixing all the code for smaller values these defaults should be probably
lowered.

With the default allyesconfigs have some new warnings, but I think
that is all code that should be just fixed.

At some point (when gcc 4.4 is released and widely used) this should
obsolete make checkstack
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      35bb5b1e
    • A
      kbuild: add kconfig symbols to tags output · 80ff2624
      由 Alexey Dobriyan 提交于 
      Steps to reproduce:

	vi -t NETFILTER
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      80ff2624
    • R
      kbuild: fix some minor typoes · 3156fd05
      由 Robert P. J. Day 提交于 
      Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      3156fd05
    • S
      kbuild: error out on missing MODULE_LICENSE · eed7d279
      由 Sam Ravnborg 提交于 
      Adrian Bunk suggested a build time check for
missing MODULE_LICENSE annotation in modules.
The build time check is fatal as we really
want this fixed for all modules.
In-tree modules should all have been fixed up by now.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@kernel.org>
      eed7d279
  3. 25 4月, 2008 34 次提交