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@@ -4,11 +4,9 @@
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#
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################################################################################
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-# Source taken from the Linux kernel tree
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-PERF_SOURCE =
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-PERF_VERSION = $(call qstrip,$(BR2_LINUX_KERNEL_VERSION))
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+LINUX_TOOLS += perf
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-PERF_DEPENDENCIES = linux host-flex host-bison
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+PERF_DEPENDENCIES = host-flex host-bison
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ifeq ($(KERNEL_ARCH),x86_64)
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PERF_ARCH=x86
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@@ -57,31 +55,33 @@ else
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PERF_MAKE_FLAGS += NO_LIBELF=1 NO_DWARF=1
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endif
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+# O must be redefined here to overwrite the one used by Buildroot for
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+# out of tree build. We build perf in $(@D)/tools/perf/ and not just
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+# $(@D) so that it isn't built in the root directory of the kernel
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+# sources.
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define PERF_BUILD_CMDS
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- $(Q)if test ! -f $(LINUX_DIR)/tools/perf/Makefile ; then \
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+ $(Q)if test ! -f $(@D)/tools/perf/Makefile ; then \
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echo "Your kernel version is too old and does not have the perf tool." ; \
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echo "At least kernel 2.6.31 must be used." ; \
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exit 1 ; \
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fi
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$(Q)if test "$(BR2_PACKAGE_ELFUTILS)" = "" ; then \
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- if ! grep -q NO_LIBELF $(LINUX_DIR)/tools/perf/Makefile* ; then \
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- if ! test -r $(LINUX_DIR)/tools/perf/config/Makefile ; then \
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+ if ! grep -q NO_LIBELF $(@D)/tools/perf/Makefile* ; then \
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+ if ! test -r $(@D)/tools/perf/config/Makefile ; then \
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echo "The perf tool in your kernel cannot be built without libelf." ; \
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echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
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exit 1 ; \
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fi \
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fi \
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fi
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- $(TARGET_MAKE_ENV) $(MAKE1) -C $(LINUX_DIR)/tools/perf \
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- $(PERF_MAKE_FLAGS) O=$(@D)
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+ $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
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+ -C $(@D)/tools/perf O=$(@D)/tools/perf/
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endef
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# After installation, we remove the Perl and Python scripts from the
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# target.
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define PERF_INSTALL_TARGET_CMDS
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- $(TARGET_MAKE_ENV) $(MAKE1) -C $(LINUX_DIR)/tools/perf \
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- $(PERF_MAKE_FLAGS) O=$(@D) install
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+ $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
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+ -C $(@D)/tools/perf O=$(@D)/tools/perf/ install
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$(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/scripts/
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endef
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-
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-$(eval $(generic-package))
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