linux/linux-tool-perf.mk

   1 ################################################################################
   2 #
   3 # perf
   4 #
   5 ################################################################################
   6
   7 LINUX_TOOLS += perf
   8
   9 PERF_DEPENDENCIES = host-flex host-bison
  10
  11 ifeq ($(KERNEL_ARCH),x86_64)
  12 PERF_ARCH=x86
  13 else
  14 PERF_ARCH=$(KERNEL_ARCH)
  15 endif
  16
  17 PERF_MAKE_FLAGS = \
  18         $(LINUX_MAKE_FLAGS) \
  19         ARCH=$(PERF_ARCH) \
  20         NO_LIBAUDIT=1 \
  21         NO_NEWT=1 \
  22         NO_GTK2=1 \
  23         NO_LIBPERL=1 \
  24         NO_LIBPYTHON=1 \
  25         DESTDIR=$(TARGET_DIR) \
  26         prefix=/usr \
  27         WERROR=0 \
  28         ASCIIDOC=
  29
  30 # The call to backtrace() function fails for ARC, because for some
  31 # reason the unwinder from libgcc returns early. Thus the usage of
  32 # backtrace() should be disabled in perf explicitly: at build time
  33 # backtrace() appears to be available, but it fails at runtime: the
  34 # backtrace will contain only several functions from the top of stack,
  35 # instead of the complete backtrace.
  36 ifeq ($(BR2_arc),y)
  37 PERF_MAKE_FLAGS += NO_BACKTRACE=1
  38 endif
  39
  40 ifeq ($(BR2_PACKAGE_SLANG),y)
  41 PERF_DEPENDENCIES += slang
  42 endif
  43
  44 ifeq ($(BR2_PACKAGE_LIBUNWIND),y)
  45 PERF_DEPENDENCIES += libunwind
  46 endif
  47
  48 ifeq ($(BR2_PACKAGE_NUMACTL),y)
  49 PERF_DEPENDENCIES += numactl
  50 endif
  51
  52 ifeq ($(BR2_PACKAGE_ELFUTILS),y)
  53 PERF_DEPENDENCIES += elfutils
  54 else
  55 PERF_MAKE_FLAGS += NO_LIBELF=1 NO_DWARF=1
  56 endif
  57
  58 # O must be redefined here to overwrite the one used by Buildroot for
  59 # out of tree build. We build perf in $(@D)/tools/perf/ and not just
  60 # $(@D) so that it isn't built in the root directory of the kernel
  61 # sources.
  62 define PERF_BUILD_CMDS
  63         $(Q)if test ! -f $(@D)/tools/perf/Makefile ; then \
  64                 echo "Your kernel version is too old and does not have the perf tool." ; \
  65                 echo "At least kernel 2.6.31 must be used." ; \
  66                 exit 1 ; \
  67         fi
  68         $(Q)if test "$(BR2_PACKAGE_ELFUTILS)" = "" ; then \
  69                 if ! grep -q NO_LIBELF $(@D)/tools/perf/Makefile* ; then \
  70                         if ! test -r $(@D)/tools/perf/config/Makefile ; then \
  71                                 echo "The perf tool in your kernel cannot be built without libelf." ; \
  72                                 echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
  73                                 exit 1 ; \
  74                         fi \
  75                 fi \
  76         fi
  77         $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
  78                 -C $(@D)/tools/perf O=$(@D)/tools/perf/
  79 endef
  80
  81 # After installation, we remove the Perl and Python scripts from the
  82 # target.
  83 define PERF_INSTALL_TARGET_CMDS
  84         $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
  85                 -C $(@D)/tools/perf O=$(@D)/tools/perf/ install
  86         $(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/scripts/
  87 endef