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  1. 20 6月, 2009 4 次提交
  3. 19 6月, 2009 1 次提交
    • P
      gcov: add gcov profiling infrastructure · 2521f2c2
      由 Peter Oberparleiter 提交于 
      Enable the use of GCC's coverage testing tool gcov [1] with the Linux
kernel.  gcov may be useful for:

 * debugging (has this code been reached at all?)
 * test improvement (how do I change my test to cover these lines?)
 * minimizing kernel configurations (do I need this option if the
   associated code is never run?)

The profiling patch incorporates the following changes:

 * change kbuild to include profiling flags
 * provide functions needed by profiling code
 * present profiling data as files in debugfs

Note that on some architectures, enabling gcc's profiling option
"-fprofile-arcs" for the entire kernel may trigger compile/link/
run-time problems, some of which are caused by toolchain bugs and
others which require adjustment of architecture code.

For this reason profiling the entire kernel is initially restricted
to those architectures for which it is known to work without changes.
This restriction can be lifted once an architecture has been tested
and found compatible with gcc's profiling. Profiling of single files
or directories is still available on all platforms (see config help
text).

[1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.htmlSigned-off-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      2521f2c2
  5. 17 6月, 2009 12 次提交
  7. 16 6月, 2009 2 次提交
  9. 15 6月, 2009 7 次提交
  11. 12 6月, 2009 3 次提交
  13. 10 6月, 2009 11 次提交
    • R
      kernel-doc: cleanup perl script · b9d97328
      由 Randy Dunlap 提交于 
      Various cleanups of scripts/kernel-doc:
- don't use **/ as an ending kernel-doc block since it's not preferred;
- typos/spellos
- add whitespace around ==, after comma, & around . operator;
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      b9d97328
    • R
      kbuild: fix headers_exports with boolean expression · eedc9d83
      由 Russell King 提交于 
      When we had code like this in a header unifdef failed to
deduct that the expression was always false - and we had code exported
that was not intended for userspace.

#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
  int a;
#endif

This commit implment support in unidef which allows it to work out if
an #if expression always evaluates true or false for symbols which
are being undefined/always defined.

The patch is slightly more complicated than I'd hoped because unifdef
needs to see lines fully evaluated - doing otherwise causes it to
mark the line as "dirty" and copy it over no matter what.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      eedc9d83
    • A
      kbuild/headers_check: refine extern check · 67b7ebe0
      由 Amerigo Wang 提交于 
      'extern' checking information is not clear, refine it.
Plus, fix a comment.
Signed-off-by: NWANG Cong <amwang@redhat.com>
[sam: redid the extern error message]
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      67b7ebe0
    • S
      kbuild: fix "Argument list too long" error for "make headers_check", · 7211b8b9
      由 Sergei Poselenov 提交于 
      I'm trying to install kernel headers to build a cross-toolchain, but got
the following:

make ARCH=arm
INSTALL_HDR_PATH=/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/
+arm-linux-gnueabi/arm-linux-gnueabi/
headers_check
...
  CHECK   include/linux/raid (2 files)
  CHECK   include/linux/spi (1 files)
  CHECK   include/linux/sunrpc (1 files)
  CHECK   include/linux/tc_act (6 files)
  CHECK   include/linux/tc_ematch (4 files)
  CHECK   include/linux/usb (8 files)
make[2]: execvp: /bin/sh: Argument list too long
make[2]: ***
[/work/psl/eldk-builds/arm-2009-04-21/work/var/tmp/crosstool-0.43-3-root/usr/crosstool/gcc-4.2.2-glibc-20070515T2025-eldk/arm-linux-gnueab
+i/arm-linux-gnueabi//include/linux/.check]
Error 127
make[1]: *** [linux] Error 2
make: *** [headers_check] Error 2
->

Introduce use of xargs to fix this.
Signed-off-by: NSergei Poselenov <sposelenov@emcraft.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      7211b8b9
    • D
      Remove bashisms from scripts · bdefe35d
      由 dann frazier 提交于 
      The '-e' option to echo and brace expansion are not guaranteed to be supported
by a POSIX-compliant /bin/sh (e.g. dash)
Signed-off-by: Ndann frazier <dannf@debian.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      bdefe35d
    • S
      kbuild: add hint about __refdata to modpost · 8b8b76c0
      由 Sam Ravnborg 提交于 
      As requested by Guennadi Liakhovetski

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      8b8b76c0
    • R
      scripts/headers_check.pl: correct RE in header CONFIG leak check · 1581c1ce
      由 Robert P. J. Day 提交于 
      Correct the regular expression in scripts/headers_check.pl to include '_'
as a valid character in the class; otherwise, the check will report a
"leaked" symbol of CONFIG_A_B_C as merely CONFIG_A.

This patch will make no difference whatsoever in the current kernel tree
as the call to the perl routine that does that check is currently
commented out:

                &check_include();
                &check_asm_types();
                &check_sizetypes();
                &check_prototypes();
                # Dropped for now. Too much noise &check_config();

However, I noticed that problem when I was building the yum downloadable
kernel source rpm for fedora 11 (beta), which *does* run that check, and
that's where the problem became obvious.
Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      1581c1ce
    • M
      kconfig: do not hardcode "include/config/auto.conf" filename · 12122f62
      由 Markus Heidelberg 提交于 
      Regardless of KCONFIG_AUTOCONFIG, the filename written as a Make target
into "include/config/auto.conf.cmd" was always the default one.

Of course this doesn't make it work for the Kernel kbuild system, since
there the filename is hardcoded at several places in the Makefiles.
Signed-off-by: NMarkus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      12122f62
    • M
      kconfig: do not hardcode ".config" filename · 284026cd
      由 Markus Heidelberg 提交于 
      Rather than hardcoding ".config" use conf_get_configname(), which also
respects the environment variable KCONFIG_CONFIG.

This fixes "make silentoldconfig" when KCONFIG_CONFIG is used and also
suggests the given filename for "Load" and "Save as" in qconf.
Signed-off-by: NMarkus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      284026cd
    • M
      kconfig qconf: fix the type of the desktop widget · 8d90c97e
      由 Markus Heidelberg 提交于 
      QApplication::desktop() returns a pointer to QDesktopWidget, not to
QWidget.

Fixes the following compiler error after a quick conversion with 'qt3to4',
which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2.

scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()':
scripts/kconfig/qconf.cc:1289: error: cannot convert 'QDesktopWidget*' to 'QWidget*' in initialization
Signed-off-by: NMarkus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      8d90c97e
    • M
      kconfig qconf: add namespace for use of Key_ enum values · fbb86374
      由 Markus Heidelberg 提交于 
      They are defined in the 'Qt' namespace.

Fixes the following compiler errors after a quick conversion with 'qt3to4',
which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2.

scripts/kconfig/qconf.cc: In member function 'virtual void ConfigLineEdit::keyPressEvent(QKeyEvent*)':
scripts/kconfig/qconf.cc:311: error: 'Key_Escape' was not declared in this scope
scripts/kconfig/qconf.cc:313: error: 'Key_Return' was not declared in this scope
scripts/kconfig/qconf.cc:314: error: 'Key_Enter' was not declared in this scope

scripts/kconfig/qconf.cc: In member function 'virtual void ConfigList::keyPressEvent(QKeyEvent*)':
scripts/kconfig/qconf.cc:653: error: 'Key_Escape' was not declared in this scope
scripts/kconfig/qconf.cc:666: error: 'Key_Return' was not declared in this scope
scripts/kconfig/qconf.cc:667: error: 'Key_Enter' was not declared in this scope
scripts/kconfig/qconf.cc:681: error: 'Key_Space' was not declared in this scope
scripts/kconfig/qconf.cc:684: error: 'Key_N' was not declared in this scope
scripts/kconfig/qconf.cc:687: error: 'Key_M' was not declared in this scope
scripts/kconfig/qconf.cc:690: error: 'Key_Y' was not declared in this scope

scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()':
scripts/kconfig/qconf.cc:1329: error: 'CTRL' was not declared in this scope
scripts/kconfig/qconf.cc:1329: error: 'Key_Q' was not declared in this scope
scripts/kconfig/qconf.cc:1331: error: 'Key_L' was not declared in this scope
scripts/kconfig/qconf.cc:1333: error: 'Key_S' was not declared in this scope
scripts/kconfig/qconf.cc:1340: error: 'Key_F' was not declared in this scope
Signed-off-by: NMarkus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      fbb86374