This revised patchset does the followings things:
o unify the i386 and x86_64 Kconfig files
o introduce support for K64BIT to set CONFIG_64BIT on command line
o introdue support for "make ARCH=x86"
o degraded ARCH={i386,x86_64} to select between 32/64 for all*targets
and otherwise just selecting the x86 architecture
I suggest we should merge this despite being at -rc2 so we can start
teaching distributors to use "ARCH=x86" - but I leave it to the
x86 Maintainers to decide.
I have always thought that the x86 merge could not be considered ready
until we could do a "make ARCH=x86" becasue it is so intuitive
if you have not typed "make ARCH=i386" one thousand times.
Based on feedback from previous submissions the following have changed:
- The backwards compatibility links are kept
- The backwards compatibility ARCH={i386,x86_64} are kept but degraded
to select 32/64 bit during configuration for all*config targets.
- ARCH={i386,x86_64} are not broken by any patches so bisect will
not choke
- patchset shrinked to 13 logical patches
With this change we have a setup where we have a common Kconfig
for 32-bit and 64-bit x86 like all other architectures.
And we can configure and build a kernel using ARCH="name of arch dir"
As an added bonus "make update-po-config" is fixed :-)
The diffstat tells it own story:
19 files changed, 684 insertions(+), 1235 deletions(-)
And this is with new functionality added...
The patches explained...
Unification of Kconfig.i386 + Kconfig.x86_64:
x86: unification of cfufreq/Kconfig
x86: start unification of arch/x86/Kconfig.*
x86: arch/x86/Kconfig.cpu unification
x86: add X86_32 dependency to i386 specific symbols in Kconfig.i386
x86: add X86_64 dependency to x86_64 specific symbols in Kconfig.x86_64
x86: copy x86_64 specific Kconfig symbols to Kconfig.i386
x86: move all simple arch settings to Kconfig
x86: move the rest of the menu's to Kconfig
Adding support for K64BIT=y on commandline
kconfig: factor out code in confdata.c
kconfig: add helper to set config symbol from environment variable
kconfig: use $K64BIT to set 64BIT with all*config targets
Preparational patch that just clean up a few bits in x86:
x86: do not use $(ARCH) when not needed
Introducing "make ARCH=x86"
x86: enable "make ARCH=x86"
After the preparation then introducing "make ARCH=x86" actually
deleted more lines than is added (last patch):
5 files changed, 19 insertions(+), 49 deletions(-)
The patchset is available at:
git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86.git
Patches will be sent to lkml for another review round.
Sam
Diffstat:
Makefile | 13 +-
README | 2 +
arch/x86/{Kconfig.i386 => Kconfig} | 567 ++++++++++----
arch/x86/Kconfig.cpu | 121 ++--
arch/x86/Kconfig.x86_64 | 839 --------------------
arch/x86/Makefile | 10 +-
arch/x86/Makefile_32 | 8 +-
arch/x86/Makefile_64 | 8 +-
arch/x86/boot/Makefile | 6 +-
arch/x86/boot/cpucheck.c | 6 -
arch/x86/kernel/Makefile_32 | 3 +-
arch/x86/kernel/Makefile_64 | 2 +
.../x86/kernel/cpu/cpufreq/{Kconfig_32 => Kconfig} | 69 ++-
arch/x86/kernel/cpu/cpufreq/Kconfig_64 | 108 ---
arch/x86/vdso/Makefile | 2 +-
scripts/kconfig/Makefile | 7 +-
scripts/kconfig/conf.c | 1 +
scripts/kconfig/confdata.c | 146 +++--
scripts/kconfig/lkc_proto.h | 1 +
19 files changed, 684 insertions(+), 1235 deletions(-)
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