[PATCH 4/4] perf tools: Makefile: Remove various and sundry cruft

From: Arnaldo Carvalho de Melo
Date: Fri Feb 18 2011 - 13:48:51 EST

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From: Michael Witten <mfwitten@xxxxxxxxx>

This commit squashes several commits that remove:

unnecessary uname calls
`sh -c'
BUILT_INS and QUIET_BUILT_IN

They have no effect, and the `fixup-builtins' and `check-builtins.sh'
scripts don't even exist.

RUNTIME_PREFIX

It's currently never anything but unset, and it's apparently
only meaningful when Microsoft Windows is the operating system
(according to the source for git).

TEST_PROGRAMS
EXTRA_PROGRAMS
unused SHELL_PATH_SQ portions
unused test for V=2
useless exports

Only when `V' is undefined (that is, only when the value of `V'
is empty) is `export V' performed, which just has the effect of
placing the empty-valued variable `V' in the environment.

The only other script to make use of `V' is `Documentation/Makefile',
which only checks whether `V' is undefined (that is, whether the value
of `V' is empty); hence, the `export V' has no effect whatsoever.

Similarly, `export QUIET_GEN' is useless because it will only have
a non-empty value when `V' has an empty-value, and when `V' has
an empty-value, `QUIET_GEN' is always explicitly set in every
script in which it is used.

`DESTDIR' is only ever defined by the user via the environment
or the command line, both of which are automatically exported
to sub-make processes. Furthermore, no non-make sub-scripts
make use of `DESTDIR' as an environment variable.

No other scripts use `perfexec_instdir'.

unused QUIET_SUBDIR{0,1}
TAR and RPMBUILD
PTHREAD_LIBS
Maintainer's dist rules and commands
distclean target
Test suite coverage testing
PRINT_DIR and NO_SUBDIR
`configure' target
NO_CURL
@@PERF_VERSION@@ substitution

Without the sed command, all of the rule's commands can be reduced
to a single line that copies a file and sets the permissions properly
in the process.

`make test' echo line
template_instdir
PERF-BUILD-OPTIONS
double-colon rules

The use of double-colon rules seems misguided or vestigial git.

Essentially hard-coded $(SCRIPTS) expansion

Signed-off-by: Michael Witten <mfwitten@xxxxxxxxx>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/.gitignore | 1 -
tools/perf/Makefile | 213 ++-----------------------------------------
tools/perf/util/exec_cmd.c | 19 ----
3 files changed, 10 insertions(+), 223 deletions(-)

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index cb43289..416684b 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -1,4 +1,3 @@
-PERF-BUILD-OPTIONS
PERF-CFLAGS
PERF-GUI-VARS
PERF-VERSION-FILE
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index fde196f..9b84218 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -3,7 +3,7 @@ ifeq ("$(origin O)", "command line")
endif

# The default target of this Makefile is...
-all::
+all:

ifneq ($(OUTPUT),)
# check that the output directory actually exists
@@ -11,8 +11,7 @@ OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
endif

-# Define V=1 to have a more verbose compile.
-# Define V=2 to have an even more verbose compile.
+# Define V to have a more verbose compile.
#
# Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
#
@@ -28,12 +27,7 @@ $(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
-include $(OUTPUT)PERF-VERSION-FILE

-uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
-uname_M := $(shell sh -c 'uname -m 2>/dev/null || echo not')
-uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
-uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not')
-uname_P := $(shell sh -c 'uname -p 2>/dev/null || echo not')
-uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
+uname_M := $(shell uname -m 2>/dev/null || echo not)

ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
@@ -52,8 +46,6 @@ ifeq ($(ARCH),x86_64)
ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S
endif

-# CFLAGS and LDFLAGS are for the users to override from the command line.
-
#
# Include saner warnings here, which can catch bugs:
#
@@ -131,22 +123,13 @@ CC = $(CROSS_COMPILE)gcc
AR = $(CROSS_COMPILE)ar
RM = rm -f
MKDIR = mkdir
-TAR = tar
FIND = find
INSTALL = install
-RPMBUILD = rpmbuild
-PTHREAD_LIBS = -lpthread

# sparse is architecture-neutral, which means that we need to tell it
# explicitly what architecture to check for. Fix this up for yours..
SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__

-ifeq ($(V), 2)
- QUIET_STDERR = ">/dev/null"
-else
- QUIET_STDERR = ">/dev/null 2>&1"
-endif
-
-include feature-tests.mak

ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all),y)
@@ -171,12 +154,10 @@ BASIC_LDFLAGS =

# Guard against environment variables
BUILTIN_OBJS =
-BUILT_INS =
LIB_H =
LIB_OBJS =
PYRF_OBJS =
SCRIPT_SH =
-TEST_PROGRAMS =

SCRIPT_SH += perf-archive.sh

@@ -192,12 +173,6 @@ $(OUTPUT)python/perf.so: $(PYRF_OBJS)

SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))

-# Empty...
-EXTRA_PROGRAMS =
-
-# ... and all the rest that could be moved out of bindir to perfexecdir
-PROGRAMS += $(EXTRA_PROGRAMS)
-
#
# Single 'perf' binary right now:
#
@@ -205,10 +180,6 @@ PROGRAMS += $(OUTPUT)perf

LANG_BINDINGS =

-# List built-in command $C whose implementation cmd_$C() is not in
-# builtin-$C.o but is linked in as part of some other command.
-#
-
# what 'all' will build and 'install' will install, in perfexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)

@@ -565,33 +536,13 @@ else
endif
endif

-ifdef RUNTIME_PREFIX
- COMPAT_CFLAGS += -DRUNTIME_PREFIX
-endif
-
-QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir
-QUIET_SUBDIR1 =
-
-ifneq ($(findstring $(MAKEFLAGS),w),w)
-PRINT_DIR = --no-print-directory
-else # "make -w"
-NO_SUBDIR = :
-endif
-
ifneq ($(findstring $(MAKEFLAGS),s),s)
ifndef V
QUIET_CC = @echo ' ' CC $@;
QUIET_AR = @echo ' ' AR $@;
QUIET_LINK = @echo ' ' LINK $@;
QUIET_MKDIR = @echo ' ' MKDIR $@;
- QUIET_BUILT_IN = @echo ' ' BUILTIN $@;
QUIET_GEN = @echo ' ' GEN $@;
- QUIET_SUBDIR0 = +@subdir=
- QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \
- $(MAKE) $(PRINT_DIR) -C $$subdir
- export V
- export QUIET_GEN
- export QUIET_BUILT_IN
endif
endif

@@ -621,16 +572,14 @@ ALL_CFLAGS += $(BASIC_CFLAGS)
ALL_CFLAGS += $(ARCH_CFLAGS)
ALL_LDFLAGS += $(BASIC_LDFLAGS)

-export TAR INSTALL DESTDIR SHELL_PATH
+export INSTALL SHELL_PATH

### Build rules

SHELL = $(SHELL_PATH)

-all:: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(BUILT_INS) $(OTHER_PROGRAMS) $(OUTPUT)PERF-BUILD-OPTIONS
-
-all::
+all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)

please_set_SHELL_PATH_to_a_more_modern_shell:
@$$(:)
@@ -661,37 +610,17 @@ $(OUTPUT)builtin-timechart.o: builtin-timechart.c $(OUTPUT)common-cmds.h $(OUTPU
'-DPERF_MAN_PATH="$(mandir_SQ)"' \
'-DPERF_INFO_PATH="$(infodir_SQ)"' $<

-$(BUILT_INS): $(OUTPUT)perf$X
- $(QUIET_BUILT_IN)$(RM) $@ && \
- ln perf$X $@ 2>/dev/null || \
- ln -s perf$X $@ 2>/dev/null || \
- cp perf$X $@
-
$(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt

$(OUTPUT)common-cmds.h: $(wildcard Documentation/perf-*.txt)
$(QUIET_GEN). util/generate-cmdlist.sh > $@+ && mv $@+ $@

-$(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
- $(QUIET_GEN)$(RM) $(OUTPUT)$@ $(OUTPUT)$@+ && \
- sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
- -e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
- -e 's/@@PERF_VERSION@@/$(PERF_VERSION)/g' \
- -e 's/@@NO_CURL@@/$(NO_CURL)/g' \
- $@.sh > $(OUTPUT)$@+ && \
- chmod +x $(OUTPUT)$@+ && \
- mv $(OUTPUT)$@+ $(OUTPUT)$@
-
-configure: configure.ac
- $(QUIET_GEN)$(RM) $@ $<+ && \
- sed -e 's/@@PERF_VERSION@@/$(PERF_VERSION)/g' \
- $< > $<+ && \
- autoconf -o $@ $<+ && \
- $(RM) $<+
+$(SCRIPTS) : % : %.sh
+ $(QUIET_GEN)$(INSTALL) '$@.sh' '$(OUTPUT)$@'

# These can record PERF_VERSION
$(OUTPUT)perf.o perf.spec \
- $(patsubst %.sh,%,$(SCRIPT_SH)) \
+ $(SCRIPTS) \
: $(OUTPUT)PERF-VERSION-FILE

$(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
@@ -826,23 +755,8 @@ $(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
fi

-# We need to apply sq twice, once to protect from the shell
-# that runs $(OUTPUT)PERF-BUILD-OPTIONS, and then again to protect it
-# and the first level quoting from the shell that runs "echo".
-$(OUTPUT)PERF-BUILD-OPTIONS: .FORCE-PERF-BUILD-OPTIONS
- @echo SHELL_PATH=\''$(subst ','\'',$(SHELL_PATH_SQ))'\' >$@
- @echo TAR=\''$(subst ','\'',$(subst ','\'',$(TAR)))'\' >>$@
- @echo NO_CURL=\''$(subst ','\'',$(subst ','\'',$(NO_CURL)))'\' >>$@
-
### Testing rules

-#
-# None right now:
-#
-# TEST_PROGRAMS += test-something$X
-
-all:: $(TEST_PROGRAMS)
-
# GNU make supports exporting all variables by "export" without parameters.
# However, the environment gets quite big, and some programs have problems
# with that.
@@ -855,29 +769,17 @@ check: $(OUTPUT)common-cmds.h
sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
done; \
else \
- echo 2>&1 "Did you mean 'make test'?"; \
exit 1; \
fi

-remove-dashes:
- ./fixup-builtins $(BUILT_INS) $(PROGRAMS) $(SCRIPTS)
-
### Installation rules

-ifneq ($(filter /%,$(firstword $(template_dir))),)
-template_instdir = $(template_dir)
-else
-template_instdir = $(prefix)/$(template_dir)
-endif
-export template_instdir
-
ifneq ($(filter /%,$(firstword $(perfexecdir))),)
perfexec_instdir = $(perfexecdir)
else
perfexec_instdir = $(prefix)/$(perfexecdir)
endif
perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
-export perfexec_instdir

install: all
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
@@ -894,14 +796,6 @@ install: all
$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'

-ifdef BUILT_INS
- $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
- $(INSTALL) $(BUILT_INS) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
-ifneq (,$X)
- $(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_PROGRAMS) $(BUILT_INS) $(OUTPUT)perf$X)), $(RM) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$p';)
-endif
-endif
-
install-doc:
$(MAKE) -C Documentation install

@@ -926,104 +820,17 @@ quick-install-man:
quick-install-html:
$(MAKE) -C Documentation quick-install-html

-
-### Maintainer's dist rules
-#
-# None right now
-#
-#
-# perf.spec: perf.spec.in
-# sed -e 's/@@VERSION@@/$(PERF_VERSION)/g' < $< > $@+
-# mv $@+ $@
-#
-# PERF_TARNAME=perf-$(PERF_VERSION)
-# dist: perf.spec perf-archive$(X) configure
-# ./perf-archive --format=tar \
-# --prefix=$(PERF_TARNAME)/ HEAD^{tree} > $(PERF_TARNAME).tar
-# @mkdir -p $(PERF_TARNAME)
-# @cp perf.spec configure $(PERF_TARNAME)
-# @echo $(PERF_VERSION) > $(PERF_TARNAME)/version
-# $(TAR) rf $(PERF_TARNAME).tar \
-# $(PERF_TARNAME)/perf.spec \
-# $(PERF_TARNAME)/configure \
-# $(PERF_TARNAME)/version
-# @$(RM) -r $(PERF_TARNAME)
-# gzip -f -9 $(PERF_TARNAME).tar
-#
-# htmldocs = perf-htmldocs-$(PERF_VERSION)
-# manpages = perf-manpages-$(PERF_VERSION)
-# dist-doc:
-# $(RM) -r .doc-tmp-dir
-# mkdir .doc-tmp-dir
-# $(MAKE) -C Documentation WEBDOC_DEST=../.doc-tmp-dir install-webdoc
-# cd .doc-tmp-dir && $(TAR) cf ../$(htmldocs).tar .
-# gzip -n -9 -f $(htmldocs).tar
-# :
-# $(RM) -r .doc-tmp-dir
-# mkdir -p .doc-tmp-dir/man1 .doc-tmp-dir/man5 .doc-tmp-dir/man7
-# $(MAKE) -C Documentation DESTDIR=./ \
-# man1dir=../.doc-tmp-dir/man1 \
-# man5dir=../.doc-tmp-dir/man5 \
-# man7dir=../.doc-tmp-dir/man7 \
-# install
-# cd .doc-tmp-dir && $(TAR) cf ../$(manpages).tar .
-# gzip -n -9 -f $(manpages).tar
-# $(RM) -r .doc-tmp-dir
-#
-# rpm: dist
-# $(RPMBUILD) -ta $(PERF_TARNAME).tar.gz
-
### Cleaning rules

-distclean: clean
-# $(RM) configure
-
clean:
$(RM) $(OUTPUT){*.o,*/*.o,*/*/*.o,*/*/*/*.o,$(LIB_FILE),perf-archive}
- $(RM) $(ALL_PROGRAMS) $(BUILT_INS) perf
- $(RM) $(TEST_PROGRAMS)
+ $(RM) $(ALL_PROGRAMS) perf
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
- $(RM) -r $(PERF_TARNAME) .doc-tmp-dir
- $(RM) $(PERF_TARNAME).tar.gz perf-core_$(PERF_VERSION)-*.tar.gz
- $(RM) $(htmldocs).tar.gz $(manpages).tar.gz
$(MAKE) -C Documentation/ clean
- $(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS $(OUTPUT)PERF-BUILD-OPTIONS
+ $(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
@python util/setup.py clean --build-lib='$(OUTPUT)python' \
--build-temp='$(OUTPUT)python/temp'

.PHONY: all install clean strip
.PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
.PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS
-.PHONY: .FORCE-PERF-BUILD-OPTIONS
-
-### Make sure built-ins do not have dups and listed in perf.c
-#
-check-builtins::
- ./check-builtins.sh
-
-### Test suite coverage testing
-#
-# None right now
-#
-# .PHONY: coverage coverage-clean coverage-build coverage-report
-#
-# coverage:
-# $(MAKE) coverage-build
-# $(MAKE) coverage-report
-#
-# coverage-clean:
-# rm -f *.gcda *.gcno
-#
-# COVERAGE_CFLAGS = $(CFLAGS) -O0 -ftest-coverage -fprofile-arcs
-# COVERAGE_LDFLAGS = $(CFLAGS) -O0 -lgcov
-#
-# coverage-build: coverage-clean
-# $(MAKE) CFLAGS="$(COVERAGE_CFLAGS)" LDFLAGS="$(COVERAGE_LDFLAGS)" all
-# $(MAKE) CFLAGS="$(COVERAGE_CFLAGS)" LDFLAGS="$(COVERAGE_LDFLAGS)" \
-# -j1 test
-#
-# coverage-report:
-# gcov -b *.c */*.c
-# grep '^function.*called 0 ' *.c.gcov */*.c.gcov \
-# | sed -e 's/$[^:]*$\.gcov: *function $[^ ]*$ called.*/\1: \2/' \
-# | tee coverage-untested-functions
diff --git a/tools/perf/util/exec_cmd.c b/tools/perf/util/exec_cmd.c
index 67eeff5..7adf4ad 100644
--- a/tools/perf/util/exec_cmd.c
+++ b/tools/perf/util/exec_cmd.c
@@ -11,31 +11,12 @@ static const char *argv0_path;

const char *system_path(const char *path)
{
-#ifdef RUNTIME_PREFIX
- static const char *prefix;
-#else
static const char *prefix = PREFIX;
-#endif
struct strbuf d = STRBUF_INIT;

if (is_absolute_path(path))
return path;

-#ifdef RUNTIME_PREFIX
- assert(argv0_path);
- assert(is_absolute_path(argv0_path));
-
- if (!prefix &&
- !(prefix = strip_path_suffix(argv0_path, PERF_EXEC_PATH)) &&
- !(prefix = strip_path_suffix(argv0_path, BINDIR)) &&
- !(prefix = strip_path_suffix(argv0_path, "perf"))) {
- prefix = PREFIX;
- fprintf(stderr, "RUNTIME_PREFIX requested, "
- "but prefix computation failed. "
- "Using static fallback '%s'.\n", prefix);
- }
-#endif
-
strbuf_addf(&d, "%s/%s", prefix, path);
path = strbuf_detach(&d, NULL);
return path;
--
1.6.2.5

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Next message: Arnaldo Carvalho de Melo: "[PATCH 3/4] perf tools: Makefile: Remove tool-specific cruft"
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