1. 25 Mar, 2018 1 commit
    • Nicholas Piggin's avatar
      kbuild: rename built-in.o to built-in.a · f49821ee
      Nicholas Piggin authored
      Incremental linking is gone, so rename built-in.o to built-in.a, which
      is the usual extension for archive files.
      
      This patch does two things, first is a simple search/replace:
      
      git grep -l 'built-in\.o' | xargs sed -i 's/built-in\.o/built-in\.a/g'
      
      The second is to invert nesting of nested text manipulations to avoid
      filtering built-in.a out from libs-y2:
      
      -libs-y2 := $(filter-out %.a, $(patsubst %/, %/built-in.a, $(libs-y)))
      +libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y)))
      Signed-off-by: 's avatarNicholas Piggin <npiggin@gmail.com>
      Signed-off-by: 's avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      f49821ee
  2. 14 May, 2017 1 commit
    • Kamil Rytarowski's avatar
      scripts: Switch to more portable Perl shebang · cb77f0d6
      Kamil Rytarowski authored
      The default NetBSD package manager is pkgsrc and it installs Perl
      along other third party programs under custom and configurable prefix.
      The default prefix for binary prebuilt packages is /usr/pkg, and the
      Perl executable lands in /usr/pkg/bin/perl.
      
      This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
      the most portable solution that should work for almost everybody.
      Perl's executable is detected automatically.
      
      This change switches -w option passed to the executable with more
      modern "use warnings;" approach. There is no functional change to the
      default behavior.
      
      While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?).
      Signed-off-by: 's avatarKamil Rytarowski <n54@gmx.com>
      Signed-off-by: 's avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      cb77f0d6
  3. 15 Mar, 2016 1 commit
    • Ard Biesheuvel's avatar
      kallsyms: add support for relative offsets in kallsyms address table · 2213e9a6
      Ard Biesheuvel authored
      Similar to how relative extables are implemented, it is possible to emit
      the kallsyms table in such a way that it contains offsets relative to
      some anchor point in the kernel image rather than absolute addresses.
      
      On 64-bit architectures, it cuts the size of the kallsyms address table
      in half, since offsets between kernel symbols can typically be expressed
      in 32 bits.  This saves several hundreds of kilobytes of permanent
      .rodata on average.  In addition, the kallsyms address table is no
      longer subject to dynamic relocation when CONFIG_RELOCATABLE is in
      effect, so the relocation work done after decompression now doesn't have
      to do relocation updates for all these values.  This saves up to 24
      bytes (i.e., the size of a ELF64 RELA relocation table entry) per value,
      which easily adds up to a couple of megabytes of uncompressed __init
      data on ppc64 or arm64.  Even if these relocation entries typically
      compress well, the combined size reduction of 2.8 MB uncompressed for a
      ppc64_defconfig build (of which 2.4 MB is __init data) results in a ~500
      KB space saving in the compressed image.
      
      Since it is useful for some architectures (like x86) to retain the
      ability to emit absolute values as well, this patch also adds support
      for capturing both absolute and relative values when
      KALLSYMS_ABSOLUTE_PERCPU is in effect, by emitting absolute per-cpu
      addresses as positive 32-bit values, and addresses relative to the
      lowest encountered relative symbol as negative values, which are
      subtracted from the runtime address of this base symbol to produce the
      actual address.
      
      Support for the above is enabled by default for all architectures except
      IA-64 and Tile-GX, whose symbols are too far apart to capture in this
      manner.
      Signed-off-by: 's avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Tested-by: 's avatarGuenter Roeck <linux@roeck-us.net>
      Reviewed-by: 's avatarKees Cook <keescook@chromium.org>
      Tested-by: 's avatarKees Cook <keescook@chromium.org>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Michal Marek <mmarek@suse.cz>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Signed-off-by: 's avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
      2213e9a6
  4. 27 Oct, 2010 6 commits
  5. 07 Mar, 2010 1 commit
  6. 11 Oct, 2007 1 commit
  7. 11 Apr, 2006 1 commit
  8. 27 Feb, 2006 1 commit
  9. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      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!
      1da177e4