Eric Lee / smarc-fsl-linux-kernel

21 Jun, 2008

1 commit

  • ede426923   alpha: link failure fix ... Browse Code »

    With built-in scsi disk driver, the final link fails with a following
    error:
    `.exit.text' referenced in section `.rodata' of drivers/built-in.o:
    defined in discarded section `.exit.text' of drivers/built-in.o

    This happens with -Os (CONFIG_CC_OPTIMIZE_FOR_SIZE=y) with all gcc-4
    versions, and also with -O2 and gcc-4.3.

    The problem is in sd.c:sd_major() being inlined into __exit function
    exit_sd(), and the compiler generating a jump table in .rodata section
    for the 'switch' statement in sd_major(). So we have references to
    discarded section.

    Fixed with a big hammer in the form of -fno-jump-tables.

    Note that jump tables vs. discarded sections is a generic problem,
    other architectures are just lucky not to suffer from it. But with
    a slightly more complex switch/case statement it can be reproduced
    on x86 as well. So maybe at some point we should consider
    -fno-jump-tables as a generic compile option...

    Signed-off-by: Ivan Kokshaysky
    Signed-off-by: Linus Torvalds

    Ivan Kokshaysky
     

18 Dec, 2007

1 commit

  • 9548b209a   alpha: build fixes ... Browse Code »

    This fixes some of the alpha-specific build problems, except a) modpost
    warning about COMMON symbol "saved_config" and b) nasty final link
    failure with gcc-4.x, -Os and scsi-disk driver configured built-in
    (due to jump table in .rodata referencing discarded .exit.text).

    - build failure with gcc-4.2.x: fix up casts in cia_io* routines to avoid
    warnings ('discards qualifiers from pointer target type'), which are
    failures, thanks to -Werror;
    - modpost warnings: add missing __init qualifier for titan and marvel;
    for non-generic build, move machine vectors from .data to .data.init.refok
    section;
    - unbreak CPU-specific optimization: rearrange cpuflags-y assignments
    so that extended -mcpu value (ev56, pca56, ev67) overrides basic
    one (ev5, ev6) and not vice versa.

    Signed-off-by: Ivan Kokshaysky
    Cc: Richard Henderson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ivan Kokshaysky
     

17 Oct, 2007

2 commits

  • 821f3eff7   Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
    kbuild: introduce ccflags-y, asflags-y and ldflags-y
    kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP
    kbuild: enable use of AFLAGS and CFLAGS on commandline
    kbuild: enable 'make AFLAGS=...' to add additional options to AS
    kbuild: fix AFLAGS use in h8300 and m68knommu
    kbuild: check for wrong use of CFLAGS
    kbuild: enable 'make CFLAGS=...' to add additional options to CC
    kbuild: fix up CFLAGS usage
    kbuild: make modpost detect unterminated device id lists
    kbuild: call export_report from the Makefile
    kbuild: move Kai Germaschewski to CREDITS
    kconfig/menuconfig: distinguish between selected-by-another options and comments
    kconfig: tristate choices with mixed tristate and boolean values
    include/linux/Kbuild: remove duplicate entries
    kbuild: kill backward compatibility checks
    kbuild: kill EXTRA_ARFLAGS
    kbuild: fix documentation in makefiles.txt
    kbuild: call make once for all targets when O=.. is used
    kbuild: pass -g to assembler under CONFIG_DEBUG_INFO
    kbuild: update _shipped files for kconfig syntax cleanup
    ...

    Fix up conflicts in arch/um/sys-{x86_64,i386}/Makefile manually.

    Linus Torvalds
     
  • d9ff5f387   cleanup arch/alpha/Makefile ... Browse Code »

    - binutils 2.7 is far below the current minimum supported version,
    and there's therefore no longer a need for an extra test

    - since even gcc 3.2 already supports all options used we can use them
    unconditionally

    Signed-off-by: Adrian Bunk
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

15 Oct, 2007

1 commit

  • a0f97e06a   kbuild: enable 'make CFLAGS=...' to add additional options to CC ... Browse Code »

    The variable CFLAGS is a wellknown variable and the usage by
    kbuild may result in unexpected behaviour.
    On top of that several people over time has asked for a way to
    pass in additional flags to gcc.

    This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
    tree and enabling one to use:
    make CFLAGS=...
    to specify additional gcc commandline options.

    One usecase is when trying to find gcc bugs but other
    use cases has been requested too.

    Patch was tested on following architectures:
    alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k

    Test was simple to do a defconfig build, apply the patch and check
    that nothing got rebuild.

    Signed-off-by: Sam Ravnborg

    Sam Ravnborg
     

10 Sep, 2005

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds