From: David Ahern Date: Mon, 27 Aug 2012 19:05:54 +0000 (-0600) Subject: perf tools: Fix x86 builds with ARCH specified on the command line X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=09a2f16a916178489fc4bf439de668d81fda7616;p=openwrt%2Fstaging%2Fblogic.git perf tools: Fix x86 builds with ARCH specified on the command line e.g., compiling i386 on x86_64 using: $ make -C tools/perf ARCH=i386 fails with: CC /tmp/pbuild/util/evsel.o In file included from util/evsel.c:21:0: util/perf_regs.h:5:23: fatal error: perf_regs.h: No such file or directory compilation terminated. Adding V=1 you see that the include argument for the arch is '-Iarch/i386/include' is wrong. It is supposed to be -Iarch/x86/include per the redefinition of ARCH in the Makefile. According to the make manual, http://www.gnu.org/software/make/manual/make.html#Override-Directive: "If a variable has been set with a command argument (see Overriding Variables), then ordinary assignments in the makefile are ignored. If you want to set the variable in the makefile even though it was set with a command argument, you can use an override directive ..." Make it so. Signed-off-by: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1346094354-74356-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 722ddee61f9f..939cf6d898a5 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -64,12 +64,12 @@ AR = $(CROSS_COMPILE)ar # Additional ARCH settings for x86 ifeq ($(ARCH),i386) - ARCH := x86 + override ARCH := x86 NO_PERF_REGS := 0 LIBUNWIND_LIBS = -lunwind -lunwind-x86 endif ifeq ($(ARCH),x86_64) - ARCH := x86 + override ARCH := x86 IS_X86_64 := 0 ifeq (, $(findstring m32,$(EXTRA_CFLAGS))) IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -xc - | tail -n 1)