x86: generate names for /proc/cpuinfo from <asm/cpufeature.h>

We have had a number of cases where <asm/cpufeature.h> (and its
predecessors) have diverged substantially from the names list in
/proc/cpuinfo.  This patch generates the latter from the former.

It retains the option for explicitly overriding the strings, but by
making that require a separate action it should at least be less
likely to happen.

It would be good to do a future pass and rename strings that are
gratuituously different in the kernel (/proc/cpuinfo is a userspace
interface and must remain constant.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index a0fc6c144384..3ede19a4e0b2 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-y                   := intel_cacheinfo.o addon_cpuid_features.o
-obj-y                   += proc.o feature_names.o
+obj-y                   += proc.o capflags.o powerflags.o
 
 obj-$(CONFIG_X86_32)    += common.o bugs.o cmpxchg.o
 obj-$(CONFIG_X86_64)    += common_64.o bugs_64.o
@@ -23,3 +23,12 @@ obj-$(CONFIG_MTRR)	+= mtrr/
 obj-$(CONFIG_CPU_FREQ)  += cpufreq/
 
 obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o
+
+quiet_cmd_mkcapflags = MKCAP   $@
+      cmd_mkcapflags = $(PERL) $(srctree)/$(src)/mkcapflags.pl $< $@
+
+cpufeature = $(src)/../../../../include/asm-x86/cpufeature.h
+
+targets += capflags.c
+$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.pl FORCE
+        $(call if_changed,mkcapflags)