1. 28 9月, 2009 1 次提交
  2. 20 9月, 2009 6 次提交
    • S
      arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0 · 51b563fc
      Sam Ravnborg 提交于
      Albin Tonnerre <albin.tonnerre@free-electrons.com> reported:
      
          Bash 4 filters out variables which contain a dot in them.
          This happends to be the case of CPPFLAGS_vmlinux.lds.
          This is rather unfortunate, as it now causes
          build failures when using SHELL=/bin/bash to compile,
          or when bash happens to be used by make (eg when it's /bin/sh)
      
      Remove the common definition of CPPFLAGS_vmlinux.lds by
      pushing relevant stuff to either Makefile.build or the
      arch specific kernel/Makefile where we build the linker script.
      
      This is also nice cleanup as we move the information out where
      it is used.
      
      Notes for the different architectures touched:
      
      arm - we use an already exported symbol
      cris - we use a config symbol aleady available
             [Not build tested]
      mips - the jiffies complexity has moved to vmlinux.lds.S where we need it.
             Added a few variables to CPPFLAGS - they are only used by
             the linker script.
             [Not build tested]
      powerpc - removed assignment that is not needed
                [not build tested]
      sparc - simplified it using $(BITS)
      um - introduced a few new exported variables to deal with this
      xtensa - added options to CPP invocation
               [not build tested]
      
      Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Mikael Starvik <starvik@axis.com>
      Cc: Jesper Nilsson <jesper.nilsson@axis.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Jeff Dike <jdike@addtoit.com>
      Cc: Chris Zankel <chris@zankel.net>
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      51b563fc
    • A
      kbuild: set -fconserve-stack option for gcc 4.5 · 8f7f5c9f
      Andi Kleen 提交于
      The upcomming gcc 4.5 has a new -fconserve-stack option that tells the
      inliner to take stack frame size in account.  Set it if the compiler
      supports it.
      Signed-off-by: NAndi Kleen <ak@linux.intel.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      8f7f5c9f
    • A
      kbuild: Check if linker supports the -X option · d79a2719
      Andi Kleen 提交于
      The new alternative `gold' linker in recent binutils doesn't support
      the -X option. This breaks allyesconfig builds that have
      CONFIG_STRIP_ASM_SYMS enabled. Check if the linker really supports
      the option using ld-option.
      Signed-off-by: NAndi Kleen <ak@linux.intel.com>
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      d79a2719
    • S
      kbuild: rename ld-option to cc-ldoption · f86fd306
      Sam Ravnborg 提交于
      ld-option is misnamed as it test options to gcc, not to ld.
      Renamed it to reflect this.
      
      Cc: Andi Kleen <andi@firstfloor.org>
      Cc: Roland McGrath <roland@redhat.com>
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      f86fd306
    • S
      kbuild: save ARCH & CROSS_COMPILE when building a kernel · 57554334
      Sam Ravnborg 提交于
      When building a kernel for a different architecture
      kbuild requires the user always to specify ARCH and
      CROSS_COMPILE on the command-line.
      
      We use the asm symlink to detect if user forgets to
      specify the correct ARCH value - but that symlink
      is about to die. And we do now want to loose this check.
      
      This patch save the settings of ARCH and CROSS_COMPILE
      in two files named:
      
          include/generated/kernel.arch
          include/generated/kernel.cross
      
      The settings are saved during "make *config" time
      and always read.
      
      If user try to change the settings we error out.
      
      This works both for plain builds and for O=...
      builds.
      
      So now you can do:
      $ mkdir sparc64
      $ make O=sparc64 ARCH=sparc64 CROSS_COMPILE=sparc64-linux- defconfig
      $ cd sparc64
      $ make
      
      Notice that you no longer need to tell kbuild
      the settings of ARCH and CROSS_COMPILE when you type make
      in the output directory.
      
      Likewise for plain builds where you do not use O=...
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      Cc: Roland McGrath <roland@redhat.com>
      57554334
    • S
      kbuild: use INSTALLKERNEL to select customized installkernel script · caa27b66
      Sam Ravnborg 提交于
      Replace the use of CROSS_COMPILE to select a customized
      installkernel script with the possibility to set INSTALLKERNEL
      to select a custom installkernel script when running make:
      
          make INSTALLKERNEL=arm-installkernel install
      
      With this patch we are now more consistent across
      different architectures - they did not all support use
      of CROSS_COMPILE.
      
      The use of CROSS_COMPILE was a hack as this really belongs
      to gcc/binutils and the installkernel script does not change
      just because we change toolchain.
      
      The use of CROSS_COMPILE caused troubles with an upcoming patch
      that saves CROSS_COMPILE when a kernel is built - it would no
      longer be installable.
      [Thanks to Peter Z. for this hint]
      
      This patch undos what Ian did in commit:
      
        0f8e2d62
        ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh")
      
      The patch has been lightly tested on x86 only - but all changes
      looks obvious.
      Acked-by: NPeter Zijlstra <peterz@infradead.org>
      Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin]
      Acked-by: Russell King <linux@arm.linux.org.uk> [arm]
      Acked-by: Paul Mundt <lethal@linux-sh.org> [sh]
      Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86]
      Cc: Ian Campbell <icampbell@arcom.com>
      Cc: Tony Luck <tony.luck@intel.com> [ia64]
      Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64]
      Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r]
      Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
      Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc]
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc]
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390]
      Cc: Thomas Gleixner <tglx@linutronix.de> [x86]
      Cc: Ingo Molnar <mingo@redhat.com> [x86]
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      caa27b66
  3. 10 9月, 2009 1 次提交
  4. 06 9月, 2009 1 次提交
  5. 28 8月, 2009 1 次提交
  6. 22 8月, 2009 1 次提交
  7. 14 8月, 2009 1 次提交
  8. 01 8月, 2009 1 次提交
  9. 23 7月, 2009 1 次提交
  10. 17 7月, 2009 1 次提交
  11. 14 7月, 2009 1 次提交
  12. 13 7月, 2009 1 次提交
  13. 05 7月, 2009 1 次提交
  14. 27 6月, 2009 2 次提交
  15. 25 6月, 2009 1 次提交
  16. 24 6月, 2009 1 次提交
    • T
      linker script: throw away .discard section · 405d967d
      Tejun Heo 提交于
      x86 throws away .discard section but no other archs do.  Also,
      .discard is not thrown away while linking modules.  Make every arch
      and module linking throw it away.  This will be used to define dummy
      variables for percpu declarations and definitions.
      
      This patch is based on Ivan Kokshaysky's alpha percpu patch.
      
      [ Impact: always throw away everything in .discard ]
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      Cc: Richard Henderson <rth@twiddle.net>
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
      Cc: Bryan Wu <cooloney@kernel.org>
      Cc: Mikael Starvik <starvik@axis.com>
      Cc: Jesper Nilsson <jesper.nilsson@axis.com>
      Cc: David Howells <dhowells@redhat.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Hirokazu Takata <takata@linux-m32r.org>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: Kyle McMartin <kyle@mcmartin.ca>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Jeff Dike <jdike@addtoit.com>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: Ingo Molnar <mingo@elte.hu>
      405d967d
  17. 19 6月, 2009 1 次提交
    • P
      gcov: add gcov profiling infrastructure · 2521f2c2
      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
  18. 10 6月, 2009 2 次提交
    • L
      Linux 2.6.30 · 07a2039b
      Linus Torvalds 提交于
      07a2039b
    • C
      kbuild: remove extra ifdef/endif of top Makefile · b8b0618c
      Cheng Renquan 提交于
      The GNU make's origin function know undefined variable well,
      so the outer ifdef/endif conditional checking is unneeded.
      
      From `info make` documentation, origin will return
      
        `undefined'
           if VARIABLE was never defined.
        `command line'
           if VARIABLE was defined on the command line.
         ...
      
      Therefore, $(origin V) will get a value anyway, killing ifdef/endif is
      viable and safe.
      
      Furthermore, I've checked the minimal requirements from
      Documentation/Changes is GNU make 3.79.1, and that version of GNU make
      has support of origin function well already, so now it's safe to kill
      the outer conditional checking, without upgrading the minimal
      requirements.
      Signed-off-by: NCheng Renquan <crq@kernel.org>
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      b8b0618c
  19. 05 6月, 2009 1 次提交
  20. 03 6月, 2009 1 次提交
  21. 24 5月, 2009 1 次提交
  22. 16 5月, 2009 1 次提交
  23. 09 5月, 2009 1 次提交
  24. 01 5月, 2009 2 次提交
  25. 30 4月, 2009 1 次提交
  26. 22 4月, 2009 1 次提交
  27. 19 4月, 2009 1 次提交
    • S
      kbuild: support include/generated · f14875a3
      Sam Ravnborg 提交于
      We need a location for generated files.
      Today they are spread over several places and bringing them
      together to a common place makes it obvious hat is generated
      and what isreal files.
      
      Al Viro originally suggested: include/gen
      Linus suggested to spell it out.
      
      This patch implement support for
      
          include/generated
      
      All files in include/generated are ignored by git.
      include/generated is removed during "make mrproper".
      
      With this we are ready to implement support for include/generated
      in the various architctures and in the base kernel.
      Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      Cc: Al Viro <viro@ZenIV.linux.org.uk>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      f14875a3
  28. 15 4月, 2009 1 次提交
  29. 11 4月, 2009 3 次提交
  30. 08 4月, 2009 1 次提交