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Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull two x86 kernel build changes from Ingo Molnar:
 "The first change modifies how 'make oldconfig' works on cross-bitness
  situations on x86.  It was felt the new behavior of preserving the
  bitness of the .config is more logical.  This is a leftover of the
  merge.

  The second change eliminates a Perl warning.  (There's another, more
  complete fix resulting of this warning fix, which second fix in flight
  to you via the kbuild tree, which will remove the timeconst.pl script
  altogether.)"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timeconst.pl: Eliminate Perl warning
  x86: Default to ARCH=x86 to avoid overriding CONFIG_64BIT
This commit is contained in:
Linus Torvalds 2013-02-19 19:12:03 -08:00
commit 121027a7a6
5 changed files with 10 additions and 6 deletions
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3
Makefile
View File

@ -165,7 +165,8 @@ export srctree objtree VPATH
# then ARCH is assigned, getting whatever value it gets normally, and
# SUBARCH is subsequently ignored.
SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \

2
arch/x86/Kconfig
View File

@ -1,7 +1,7 @@
# Select 32 or 64 bit
config 64BIT
bool "64-bit kernel" if ARCH = "x86"
default ARCH = "x86_64"
default ARCH != "i386"
---help---
Say yes to build a 64-bit kernel - formerly known as x86_64
Say no to build a 32-bit kernel - formerly known as i386

4
arch/x86/Makefile
View File

@ -2,7 +2,11 @@
# select defconfig based on actual architecture
ifeq ($(ARCH),x86)
ifeq ($(shell uname -m),x86_64)
KBUILD_DEFCONFIG := x86_64_defconfig
else
KBUILD_DEFCONFIG := i386_defconfig
endif
else
KBUILD_DEFCONFIG := $(ARCH)_defconfig
endif

1
arch/x86/configs/i386_defconfig
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@ -1,3 +1,4 @@
# CONFIG_64BIT is not set
CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y

6
kernel/timeconst.pl
View File

@ -369,10 +369,8 @@ if ($hz eq '--can') {
die "Usage: $0 HZ\n";
}
@val = @{$canned_values{$hz}};
if (!defined(@val)) {
@val = compute_values($hz);
}
$cv = $canned_values{$hz};
@val = defined($cv) ? @$cv : compute_values($hz);
output($hz, @val);
}
exit 0;