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* headers_install: check exit status of unifdefMike Frysinger2010-12-141-0/+7
| | | | | | | | | If unifdef fails for any reason (like segfaulting), we should be aborting the install steps. So check its exit status in this unlikely scenario. Reported-by: Diego Elio Pettenò <flameeyes@gentoo.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* headers_install: use local file handlesStephen Hemminger2010-03-071-9/+10
| | | | | | | | | | Better practice to use 3 arg open and local file handles. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: WANG Cong <amwang@redhat.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* warn about use of uninstalled kernel headersArnd Bergmann2009-10-111-1/+1
| | | | | | | | | | | | User applications frequently hit problems when they try to use the kernel headers directly, rather than the exported headers. This adds an explicit warning for this case, and points to a URL holding an explanation of why this is wrong and what to do about it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: in headers_install autoconvert asm/inline/volatile to __xxx__Mike Frysinger2009-01-021-0/+3
| | | | | | | | | | Headers in userspace should be using the __xxx__ form of the asm, inline, and volatile keywords. Since people like to revert these things without realizing what's going on, have the headers install step autoconvert these keywords. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Fix incompatibility with versions of Perl less than 5.6.0Jeremy Huntwork2008-10-291-8/+9
| | | | | | | | | | | | | | | | | | Fix headers_install.pl and headers_check.pl to be compatible with versions of Perl less than 5.6.0. It has been tested with Perl 5.005_03 and 5.8.8. I realize this may not be an issue for most people, but there will still be some that hit it, I imagine. There are three basic issues: 1. Prior to 5.6.0 open() only used 2 arguments, and the versions of the scripts in 2.6.27.1 use 3. 2. 5.6.0 also introduced the ability to use uninitialized scalar variables as file handles, which the current scripts make use of. 3. Lastly, 5.6.0 also introduced the pragma 'use warnings'. We can use the -w switch and be backwards compatible. Signed-off-by: Jeremy Huntwork <jhuntwork@lightcubesolutions.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: install all headers when arch is changedSam Ravnborg2008-07-251-5/+8
| | | | | | | | | | We see some header files that are selected dependent on the actual architecture so force a reinstallation of all header files when the arch changes. This slows down "make headers_check_all" but then we better reflect reality. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: optimize headers_* targetsSam Ravnborg2008-07-251-0/+42
Move the core functionality of headers_install and headers_check to two small perl scripts. The makefile is adapted to use the perl scrip and changed to operate on all files in a directory. So if one file is changed then all files in the directory is processed. perl were chosen for the helper scripts because this is pure text processing which perl is good at and especially the headers_check.pl script are expected to see changes / new checks implmented. The speed is ~300% faster on this box. And the output generated to the screen is now down to two lines per directory (one for install, one for check) so it is easier to scroll back after a kernel build. The perl scripts has been brought to sanity by patient feedback from: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>