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perf tools: Allow cross compiling
For embedded platforms, we want to be able to build the perf tools on a build machine to run on a different arch. This patch allows $CROSS_COMPILE to set the cross compiler. Additionally, if NO_LIBPERL is set, then don't use perl include paths as they will be for the host arch. Signed-off-by: Jamie Iles <jamie.iles@picochip.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1260523260-15694-2-git-send-email-jamie.iles@picochip.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -237,8 +237,8 @@ lib = lib
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export prefix bindir sharedir sysconfdir
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CC = gcc
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AR = ar
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CC = $(CROSS_COMPILE)gcc
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AR = $(CROSS_COMPILE)ar
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RM = rm -f
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TAR = tar
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FIND = find
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@ -492,8 +492,10 @@ else
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LIB_OBJS += util/probe-finder.o
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endif
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ifndef NO_LIBPERL
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PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null`
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PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
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endif
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ifneq ($(shell sh -c "(echo '\#include <EXTERN.h>'; echo '\#include <perl.h>'; echo 'int main(void) { perl_alloc(); return 0; }') | $(CC) -x c - $(PERL_EMBED_CCOPTS) -o /dev/null $(PERL_EMBED_LDOPTS) > /dev/null 2>&1 && echo y"), y)
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BASIC_CFLAGS += -DNO_LIBPERL
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