![John Keeping](/assets/img/avatar_default.png)
Since Linux 3.10, perf's NO_NEWT configuration option simply sets NO_SLANG=1 and there is no dependency on libnewt. We already handle NO_SLANG correctly based on whether or not BR2_PACKAGE_SLANG is selected, so all we accomplish by setting NO_NEWT=1 is disabling perf's TUI when all of the dependencies are available. To simplify all of this, introduce a new config option to enable the perf TUI which depends on slang and add a check to prevent building the TUI on versions which are too old. The check for NO_SLANG is equivalent to checking if NO_NEWT is required as NO_SLANG was added in the same commit that removed the libnewt dependency and deprecated NO_NEWT (6692c262df4f, "perf tools: Remove dependency on libnewt", 2013-03-28). Signed-off-by: John Keeping <john@metanate.com> [Thomas: add missing BR2_USE_MMU dependency, coming from the slang package. Noticed by Yann E. Morin.] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
149 lines
4.4 KiB
Makefile
149 lines
4.4 KiB
Makefile
################################################################################
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#
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# perf
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#
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################################################################################
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LINUX_TOOLS += perf
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PERF_DEPENDENCIES = host-flex host-bison
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ifeq ($(KERNEL_ARCH),x86_64)
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PERF_ARCH=x86
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else
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PERF_ARCH=$(KERNEL_ARCH)
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endif
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PERF_MAKE_FLAGS = \
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$(LINUX_MAKE_FLAGS) \
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JOBS=$(PARALLEL_JOBS) \
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ARCH=$(PERF_ARCH) \
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DESTDIR=$(TARGET_DIR) \
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prefix=/usr \
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WERROR=0 \
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NO_LIBAUDIT=1 \
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NO_GTK2=1 \
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NO_LIBPERL=1 \
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NO_LIBPYTHON=1 \
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NO_LIBBIONIC=1
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# We need to pass an argument to ld for setting the emulation when
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# building for MIPS architecture, otherwise the default one will always
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# be used and the compilation for most variants will fail.
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ifeq ($(BR2_mips),y)
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf32btsmip"
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else ifeq ($(BR2_mipsel),y)
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf32ltsmip"
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else ifeq ($(BR2_mips64),y)
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ifeq ($(BR2_MIPS_NABI32),y)
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf32btsmipn32"
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else
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf64btsmip"
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endif
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else ifeq ($(BR2_mips64el),y)
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ifeq ($(BR2_MIPS_NABI32),y)
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf32ltsmipn32"
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else
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PERF_MAKE_FLAGS += LD="$(TARGET_LD) -m elf64ltsmip"
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endif
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endif
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# The call to backtrace() function fails for ARC, because for some
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# reason the unwinder from libgcc returns early. Thus the usage of
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# backtrace() should be disabled in perf explicitly: at build time
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# backtrace() appears to be available, but it fails at runtime: the
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# backtrace will contain only several functions from the top of stack,
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# instead of the complete backtrace.
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ifeq ($(BR2_arc),y)
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PERF_MAKE_FLAGS += NO_BACKTRACE=1
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endif
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ifeq ($(BR2_PACKAGE_LINUX_TOOLS_PERF_TUI),y)
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PERF_DEPENDENCIES += slang
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else
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PERF_MAKE_FLAGS += NO_NEWT=1 NO_SLANG=1
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endif
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ifeq ($(BR2_PACKAGE_LIBUNWIND),y)
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PERF_DEPENDENCIES += libunwind
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else
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PERF_MAKE_FLAGS += NO_LIBUNWIND=1
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endif
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ifeq ($(BR2_PACKAGE_NUMACTL),y)
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PERF_DEPENDENCIES += numactl
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else
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PERF_MAKE_FLAGS += NO_LIBNUMA=1
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endif
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ifeq ($(BR2_PACKAGE_ELFUTILS),y)
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PERF_DEPENDENCIES += elfutils
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else
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PERF_MAKE_FLAGS += NO_LIBELF=1 NO_DWARF=1
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endif
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ifeq ($(BR2_PACKAGE_ZLIB),y)
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PERF_DEPENDENCIES += zlib
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else
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PERF_MAKE_FLAGS += NO_ZLIB=1
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endif
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# lzma is provided by xz
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ifeq ($(BR2_PACKAGE_XZ),y)
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PERF_DEPENDENCIES += xz
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else
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PERF_MAKE_FLAGS += NO_LZMA=1
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endif
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# We really do not want to build the perf documentation, because it
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# has stringent requirement on the documentation generation tools,
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# like xmlto and asciidoc), which may be lagging behind on some
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# distributions.
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# We name it 'GNUmakefile' so that GNU make will use it instead of
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# the existing 'Makefile'.
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define PERF_DISABLE_DOCUMENTATION
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if [ -f $(LINUX_DIR)/tools/perf/Documentation/Makefile ]; then \
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printf "%%:\n\t@:\n" >$(LINUX_DIR)/tools/perf/Documentation/GNUmakefile; \
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fi
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endef
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LINUX_POST_PATCH_HOOKS += PERF_DISABLE_DOCUMENTATION
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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 $(LINUX_DIR)/tools/perf/ and not just
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# $(LINUX_DIR) so that it isn't built in the root directory of the kernel
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# sources.
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define PERF_BUILD_CMDS
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$(Q)if test ! -f $(LINUX_DIR)/tools/perf/Makefile ; then \
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echo "Your kernel version is too old and does not have the perf tool." ; \
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echo "At least kernel 2.6.31 must be used." ; \
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exit 1 ; \
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fi
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$(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 $(LINUX_DIR)/tools/perf/config/Makefile ; then \
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echo "The perf tool in your kernel cannot be built without libelf." ; \
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echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
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exit 1 ; \
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fi \
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fi \
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fi
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$(Q)if test "$(BR2_PACKAGE_LINUX_TOOLS_PERF_TUI)" = "y" ; then \
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if ! grep -q NO_SLANG $(LINUX_DIR)/tools/perf/Makefile* ; then \
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echo "The perf tool in your kernel cannot be build with the TUI." ; \
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echo "Either upgrade your kernel to >= 3.10, or disable the TUI." ; \
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exit 1 ; \
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fi \
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fi
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$(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
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-C $(LINUX_DIR)/tools/perf O=$(LINUX_DIR)/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) $(PERF_MAKE_FLAGS) \
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-C $(LINUX_DIR)/tools/perf O=$(LINUX_DIR)/tools/perf/ install
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$(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/scripts/
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$(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/tests/
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endef
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