Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932280Ab0FJQIf (ORCPT ); Thu, 10 Jun 2010 12:08:35 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:50595 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752819Ab0FJQIa (ORCPT ); Thu, 10 Jun 2010 12:08:30 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , "David S. Miller" , =?utf-8?q?Fr=C3=A9d=C3=A9ric=20Weisbecker?= , Ingo Molnar , Michal Marek , Mike Galbraith , Paul Mackerras , Peter Zijlstra , Sam Ravnborg , Stephane Eranian , Tom Zanussi Subject: [PATCH 1/1] perf tools: Reorganize the Makefile feature tests Date: Thu, 10 Jun 2010 13:08:11 -0300 Message-Id: <1276186091-19178-2-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.6.2.5 In-Reply-To: <1276186091-19178-1-git-send-email-acme@infradead.org> References: <1276186091-19178-1-git-send-email-acme@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 15287 Lines: 430 From: Arnaldo Carvalho de Melo Moving the tests to a separate file, feature-tests.mak and using a try-cc function similar to the try-run in Kbuild. This also makes the output more quiet as we can stop using the INTERMEDIATE target to remove the .perf.dev.null file needed for some gcc versions where /dev/null can't be used as the output file name. As the tests get shorter by uninlining the source code used to test for features, we can more properly use identation. The feature tests itself can be made more clear and reused, like when trying to see what is needed to have bfd_demangle. We also get a bit closer to reusing scripts/Kbuild.include, reducing the distance from the kernel build system. Tests performed: [root@emilia perf]# make -j9 O=/tmp/perf PERF_VERSION = 0.0.2.PERF GEN /tmp/perf/common-cmds.h * new build flags or prefix GEN perf-archive CC /tmp/perf/builtin-annotate.o CC /tmp/perf/bench/sched-messaging.o CC /tmp/perf/builtin-diff.o CC /tmp/perf/scripts/python/Perf-Trace-Util/Context.o CC /tmp/perf/perf.o CC /tmp/perf/builtin-help.o AR /tmp/perf/libperf.a LINK /tmp/perf/perf [root@emilia perf]# If we uninstall, for instance newt-devel we get: [root@emilia perf]# rpm -e newt-devel [root@emilia perf]# make -j9 O=/tmp/perf Makefile:564: newt not found, disables TUI support. Please install newt-devel or libnewt-dev * new build flags or prefix GEN perf-archive CC /tmp/perf/perf.o CC /tmp/perf/builtin-annotate.o AR /tmp/perf/libperf.a LINK /tmp/perf/perf [root@emilia perf]# And then binutils-devel: [root@emilia perf]# make -j9 O=/tmp/perf Makefile:564: newt not found, disables TUI support. Please install newt-devel or libnewt-dev Makefile:632: No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling * new build flags or prefix GEN perf-archive CC /tmp/perf/perf.o AR /tmp/perf/libperf.a LINK /tmp/perf/perf [root@emilia perf]# And then strictly required devel packages: [root@emilia perf]# rpm -e elfutils-libelf-devel elfutils-devel [root@emilia perf]# make -j9 O=/tmp/perf Makefile:509: No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev Makefile:542: *** No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel. Stop. [root@emilia perf]# After installing everything back on: [root@emilia perf]# yum install elfutils-devel binutils-devel newt-devel Installed: binutils-devel.x86_64 0:2.20.51.0.2-5.11.el6 elfutils-devel.x86_64 0:0.147-1.el6 elfutils-libelf-devel.x86_64 0:0.147-1.el6 newt-devel.x86_64 0:0.52.11-1.el6 Complete! [root@emilia perf]# make -j9 PERF_VERSION = 0.0.2.PERF GEN common-cmds.h * new build flags or prefix GEN perf-archive CC builtin-annotate.o AR libperf.a LINK perf [root@emilia perf]# make -j9 [root@emilia perf]# Thanks to Sam for pointing me to try-run. Cc: David S. Miller Cc: Frédéric Weisbecker Cc: Ingo Molnar Cc: Michal Marek Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Sam Ravnborg Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 109 ++++++++++++++++++++------------------- tools/perf/feature-tests.mak | 119 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 175 insertions(+), 53 deletions(-) create mode 100644 tools/perf/feature-tests.mak diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 3d8f31e..6aa2fe3 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -285,14 +285,10 @@ else QUIET_STDERR = ">/dev/null 2>&1" endif -BITBUCKET = "/dev/null" +-include feature-tests.mak -ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { return puts(\"hi\"); }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) "$(QUIET_STDERR)" && echo y"), y) - BITBUCKET = .perf.dev.null -endif - -ifeq ($(shell sh -c "echo 'int foo(void) {char X[2]; return 3;}' | $(CC) -x c -c -Werror -fstack-protector-all - -o $(BITBUCKET) "$(QUIET_STDERR)" && echo y"), y) - CFLAGS := $(CFLAGS) -fstack-protector-all +ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all),y) + CFLAGS := $(CFLAGS) -fstack-protector-all endif @@ -508,7 +504,8 @@ PERFLIBS = $(LIB_FILE) -include config.mak ifndef NO_DWARF -ifneq ($(shell sh -c "(echo '\#include '; echo '\#include '; echo '\#include '; echo '\#ifndef _ELFUTILS_PREREQ'; echo '\#error'; echo '\#endif'; echo 'int main(void) { Dwarf *dbg; dbg = dwarf_begin(0, DWARF_C_READ); return (long)dbg; }') | $(CC) -x c - $(ALL_CFLAGS) -I/usr/include/elfutils -ldw -lelf -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y) +FLAGS_DWARF=$(ALL_CFLAGS) -I/usr/include/elfutils -ldw -lelf $(ALL_LDFLAGS) $(EXTLIBS) +ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF)),y) msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev); NO_DWARF := 1 endif # Dwarf support @@ -536,16 +533,18 @@ ifneq ($(OUTPUT),) BASIC_CFLAGS += -I$(OUTPUT) endif -ifeq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y) -ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { const char * version = gnu_get_libc_version(); return (long)version; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y) - msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static); +FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) +ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF)),y) + FLAGS_GLIBC=$(ALL_CFLAGS) $(ALL_LDFLAGS) + ifneq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC)),y) + msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static); + else + msg := $(error No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel); + endif endif - ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y) - BASIC_CFLAGS += -DLIBELF_NO_MMAP - endif -else - msg := $(error No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel and glibc-dev[el]); +ifneq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_COMMON)),y) + BASIC_CFLAGS += -DLIBELF_NO_MMAP endif ifndef NO_DWARF @@ -561,41 +560,47 @@ endif # NO_DWARF ifdef NO_NEWT BASIC_CFLAGS += -DNO_NEWT_SUPPORT else -ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { newtInit(); newtCls(); return newtFinished(); }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -lnewt -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y) - msg := $(warning newt not found, disables TUI support. Please install newt-devel or libnewt-dev); - BASIC_CFLAGS += -DNO_NEWT_SUPPORT -else - # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h - BASIC_CFLAGS += -I/usr/include/slang - EXTLIBS += -lnewt -lslang - LIB_OBJS += $(OUTPUT)util/newt.o -endif -endif # NO_NEWT - -ifndef NO_LIBPERL -PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null` -PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null` + FLAGS_NEWT=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -lnewt + ifneq ($(call try-cc,$(SOURCE_NEWT),$(FLAGS_NEWT)),y) + msg := $(warning newt not found, disables TUI support. Please install newt-devel or libnewt-dev); + BASIC_CFLAGS += -DNO_NEWT_SUPPORT + else + # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h + BASIC_CFLAGS += -I/usr/include/slang + EXTLIBS += -lnewt -lslang + LIB_OBJS += $(OUTPUT)util/newt.o + endif endif -ifneq ($(shell sh -c "(echo '\#include '; echo '\#include '; echo 'int main(void) { perl_alloc(); return 0; }') | $(CC) -x c - $(PERL_EMBED_CCOPTS) -o $(BITBUCKET) $(PERL_EMBED_LDOPTS) > /dev/null 2>&1 && echo y"), y) +ifdef NO_LIBPERL BASIC_CFLAGS += -DNO_LIBPERL else - ALL_LDFLAGS += $(PERL_EMBED_LDOPTS) - LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o - LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o -endif + PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null` + PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null` + PERL_EMBED_FLAGS=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS) -ifndef NO_LIBPYTHON -PYTHON_EMBED_LDOPTS = `python-config --ldflags 2>/dev/null` -PYTHON_EMBED_CCOPTS = `python-config --cflags 2>/dev/null` + ifneq ($(call try-cc,$(SOURCE_PERL_EMBED),$(FLAGS_PERL_EMBED)),y) + BASIC_CFLAGS += -DNO_LIBPERL + else + ALL_LDFLAGS += $(PERL_EMBED_LDOPTS) + LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o + LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o + endif endif -ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { Py_Initialize(); return 0; }') | $(CC) -x c - $(PYTHON_EMBED_CCOPTS) -o $(BITBUCKET) $(PYTHON_EMBED_LDOPTS) > /dev/null 2>&1 && echo y"), y) +ifdef NO_LIBPYTHON BASIC_CFLAGS += -DNO_LIBPYTHON else - ALL_LDFLAGS += $(PYTHON_EMBED_LDOPTS) - LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o - LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o + PYTHON_EMBED_LDOPTS = `python-config --ldflags 2>/dev/null` + PYTHON_EMBED_CCOPTS = `python-config --cflags 2>/dev/null` + FLAGS_PYTHON_EMBED=$(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) + ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y) + BASIC_CFLAGS += -DNO_LIBPYTHON + else + ALL_LDFLAGS += $(PYTHON_EMBED_LDOPTS) + LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o + LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o + endif endif ifdef NO_DEMANGLE @@ -604,20 +609,23 @@ else ifdef HAVE_CPLUS_DEMANGLE EXTLIBS += -liberty BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE else - has_bfd := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y") - + FLAGS_BFD=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd + has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD)) ifeq ($(has_bfd),y) EXTLIBS += -lbfd else - has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y") + FLAGS_BFD_IBERTY=$(FLAGS_BFD) -liberty + has_bfd_iberty := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY)) ifeq ($(has_bfd_iberty),y) EXTLIBS += -lbfd -liberty else - has_bfd_iberty_z := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y") + FLAGS_BFD_IBERTY_Z=$(FLAGS_BFD_IBERTY) -lz + has_bfd_iberty_z := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY_Z)) ifeq ($(has_bfd_iberty_z),y) EXTLIBS += -lbfd -liberty -lz else - has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y") + FLAGS_CPLUS_DEMANGLE=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -liberty + has_cplus_demangle := $(call try-cc,$(SOURCE_CPLUS_DEMANGLE),$(FLAGS_CPLUS_DEMANGLE)) ifeq ($(has_cplus_demangle),y) EXTLIBS += -liberty BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE @@ -865,7 +873,7 @@ export TAR INSTALL DESTDIR SHELL_PATH SHELL = $(SHELL_PATH) -all:: .perf.dev.null shell_compatibility_test $(ALL_PROGRAMS) $(BUILT_INS) $(OTHER_PROGRAMS) $(OUTPUT)PERF-BUILD-OPTIONS +all:: shell_compatibility_test $(ALL_PROGRAMS) $(BUILT_INS) $(OTHER_PROGRAMS) $(OUTPUT)PERF-BUILD-OPTIONS ifneq (,$X) $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) perf$X)), test '$p' -ef '$p$X' || $(RM) '$p';) endif @@ -1195,11 +1203,6 @@ clean: .PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS .PHONY: .FORCE-PERF-BUILD-OPTIONS -.perf.dev.null: - touch .perf.dev.null - -.INTERMEDIATE: .perf.dev.null - ### Make sure built-ins do not have dups and listed in perf.c # check-builtins:: diff --git a/tools/perf/feature-tests.mak b/tools/perf/feature-tests.mak new file mode 100644 index 0000000..ddb68e6 --- /dev/null +++ b/tools/perf/feature-tests.mak @@ -0,0 +1,119 @@ +define SOURCE_HELLO +#include +int main(void) +{ + return puts(\"hi\"); +} +endef + +ifndef NO_DWARF +define SOURCE_DWARF +#include +#include +#include +#ifndef _ELFUTILS_PREREQ +#error +#endif + +int main(void) +{ + Dwarf *dbg = dwarf_begin(0, DWARF_C_READ); + return (long)dbg; +} +endef +endif + +define SOURCE_LIBELF +#include + +int main(void) +{ + Elf *elf = elf_begin(0, ELF_C_READ, 0); + return (long)elf; +} +endef + +define SOURCE_GLIBC +#include + +int main(void) +{ + const char *version = gnu_get_libc_version(); + return (long)version; +} +endef + +define SOURCE_ELF_MMAP +#include +int main(void) +{ + Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0); + return (long)elf; +} +endef + +ifndef NO_NEWT +define SOURCE_NEWT +#include + +int main(void) +{ + newtInit(); + newtCls(); + return newtFinished(); +} +endef +endif + +ifndef NO_LIBPERL +define SOURCE_PERL_EMBED +#include +#include + +int main(void) +{ +perl_alloc(); +return 0; +} +endef +endif + +ifndef NO_LIBPYTHON +define SOURCE_PYTHON_EMBED +#include + +int main(void) +{ + Py_Initialize(); + return 0; +} +endef +endif + +define SOURCE_BFD +#include + +int main(void) +{ + bfd_demangle(0, 0, 0); + return 0; +} +endef + +define SOURCE_CPLUS_DEMANGLE +extern char *cplus_demangle(const char *, int); + +int main(void) +{ + cplus_demangle(0, 0); + return 0; +} +endef + +# try-cc +# Usage: option = $(call try-cc, source-to-build, cc-options) +try-cc = $(shell sh -c \ + 'TMP="$(TMPOUT).$$$$"; \ + echo "$(1)" | \ + $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ + rm -f "$$TMP"') -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/