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Message-Id: <1277999763-20357-6-git-send-email-bp@amd64.org>
Date: Thu, 1 Jul 2010 17:55:47 +0200
From: Borislav Petkov <bp@...64.org>
To: <linux-kernel@...r.kernel.org>
Subject: [PATCH 05/21] perf: rewire generic library stuff, p1
From: Borislav Petkov <borislav.petkov@....com>
Carve out generic library stuff into tools/lib/lk/ and rewire it with
perf. Add a top-level Makefile which selects between targets depending
on the tool we want to build. Also, add a Makefile.lib for common
facilities used by all the Makefiles.
Signed-off-by: Borislav Petkov <borislav.petkov@....com>
---
tools/Makefile | 58 ++++++++++++++++++++++
tools/Makefile.lib | 28 +++++++++++
tools/lib/Makefile | 38 ++++++++++++++
tools/lib/lk/bitmap.c | 21 ++++++++
tools/lib/lk/cpumap.c | 114 +++++++++++++++++++++++++++++++++++++++++++
tools/lib/lk/cpumap.h | 7 +++
tools/lib/lk/hweight.c | 31 ++++++++++++
tools/perf/Makefile | 41 ++--------------
tools/perf/bench/bench.h | 2 +
tools/perf/builtin-record.c | 2 +-
tools/perf/builtin-stat.c | 2 +-
tools/perf/builtin-top.c | 2 +-
tools/perf/util/bitmap.c | 21 --------
tools/perf/util/cache.h | 1 +
tools/perf/util/cpumap.c | 114 -------------------------------------------
tools/perf/util/cpumap.h | 7 ---
tools/perf/util/hweight.c | 31 ------------
17 files changed, 308 insertions(+), 212 deletions(-)
create mode 100644 tools/Makefile
create mode 100644 tools/Makefile.lib
create mode 100644 tools/lib/Makefile
create mode 100644 tools/lib/lk/bitmap.c
create mode 100644 tools/lib/lk/cpumap.c
create mode 100644 tools/lib/lk/cpumap.h
create mode 100644 tools/lib/lk/hweight.c
delete mode 100644 tools/perf/util/bitmap.c
delete mode 100644 tools/perf/util/cpumap.c
delete mode 100644 tools/perf/util/cpumap.h
delete mode 100644 tools/perf/util/hweight.c
diff --git a/tools/Makefile b/tools/Makefile
new file mode 100644
index 0000000..e645761
--- /dev/null
+++ b/tools/Makefile
@@ -0,0 +1,58 @@
+# CFLAGS and LDFLAGS are for the users to override from the command line.
+#
+
+include Makefile.lib
+
+#
+# Include saner warnings here, which can catch bugs:
+#
+EXTRA_WARNINGS := -Wformat
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-security
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-y2k
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wshadow
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Winit-self
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wpacked
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wredundant-decls
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstack-protector
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstrict-aliasing=3
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-default
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-enum
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wno-system-headers
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wundef
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wvolatile-register-var
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wwrite-strings
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wbad-function-cast
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wmissing-declarations
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wmissing-prototypes
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wnested-externs
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wold-style-definition
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstrict-prototypes
+EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wdeclaration-after-statement
+
+export EXTRA_WARNINGS
+
+ifeq ("$(origin DEBUG)", "command line")
+ PERF_DEBUG = $(DEBUG)
+endif
+ifndef PERF_DEBUG
+ CFLAGS_OPTIMIZE = -O6
+ export CFLAGS_OPTIMIZE
+endif
+
+#
+# lib includes for submake
+BASIC_CFLAGS = -I$(CURDIR)/lib -I$(CURDIR)/perf -I$(CURDIR)/perf/util/include
+
+export BASIC_CFLAGS
+
+perf: lib .FORCE
+ $(QUIET_SUBDIR0)perf/ $(QUIET_SUBDIR1)
+
+lib: .FORCE
+ $(QUIET_SUBDIR0)lib/ $(QUIET_SUBDIR1)
+
+clean:
+ $(QUIET_SUBDIR0)lib/ $(QUIET_SUBDIR1) clean
+ $(QUIET_SUBDIR0)perf/ $(QUIET_SUBDIR1) clean
+
+.PHONY: clean .FORCE
diff --git a/tools/Makefile.lib b/tools/Makefile.lib
new file mode 100644
index 0000000..aac6be9
--- /dev/null
+++ b/tools/Makefile.lib
@@ -0,0 +1,28 @@
+QUIET_SUBDIR0 = +$(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_BUILT_IN = @echo ' ' BUILTIN $@;
+ QUIET_GEN = @echo ' ' GEN $@;
+ QUIET_SUBDIR0 = +@...dir=
+ QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \
+ $(MAKE) $(PRINT_DIR) -C $$subdir
+ export V
+ export QUIET_GEN
+ export QUIET_BUILT_IN
+endif
+endif
+
+ifeq ("$(origin O)", "command line")
+ OUTPUT := $(O)/
+endif
diff --git a/tools/lib/Makefile b/tools/lib/Makefile
new file mode 100644
index 0000000..48f8e21
--- /dev/null
+++ b/tools/lib/Makefile
@@ -0,0 +1,38 @@
+include ../Makefile.lib
+
+# Guard against environment variables
+LIB_H =
+LIB_OBJS =
+
+LIB_H += lk/cpumap.h
+
+LIB_OBJS += $(OUTPUT)lk/bitmap.o
+LIB_OBJS += $(OUTPUT)lk/cpumap.o
+LIB_OBJS += $(OUTPUT)lk/hweight.o
+
+LIBFILE = lklib.a
+
+RM = rm -f
+
+CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
+EXTLIBS = -lpthread -lrt -lelf -lm
+ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+ALL_LDFLAGS = $(LDFLAGS)
+STRIP ?= strip
+
+$(LIBFILE): $(LIB_OBJS)
+ $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIB_OBJS)
+
+$(LIB_OBJS): $(LIB_H)
+
+$(OUTPUT)%.o: %.c
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+$(OUTPUT)%.s: %.c
+ $(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $<
+$(OUTPUT)%.o: %.S
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+
+clean:
+ $(RM) $(LIB_OBJS)
+
+.PHONY: clean
diff --git a/tools/lib/lk/bitmap.c b/tools/lib/lk/bitmap.c
new file mode 100644
index 0000000..5e230ac
--- /dev/null
+++ b/tools/lib/lk/bitmap.c
@@ -0,0 +1,21 @@
+/*
+ * From lib/bitmap.c
+ * Helper functions for bitmap.h.
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+#include <linux/bitmap.h>
+
+int __bitmap_weight(const unsigned long *bitmap, int bits)
+{
+ int k, w = 0, lim = bits/BITS_PER_LONG;
+
+ for (k = 0; k < lim; k++)
+ w += hweight_long(bitmap[k]);
+
+ if (bits % BITS_PER_LONG)
+ w += hweight_long(bitmap[k] & BITMAP_LAST_WORD_MASK(bits));
+
+ return w;
+}
diff --git a/tools/lib/lk/cpumap.c b/tools/lib/lk/cpumap.c
new file mode 100644
index 0000000..71e376b
--- /dev/null
+++ b/tools/lib/lk/cpumap.c
@@ -0,0 +1,114 @@
+#include <util/util.h>
+#include <perf.h>
+#include "cpumap.h"
+#include <assert.h>
+#include <stdio.h>
+
+int cpumap[MAX_NR_CPUS];
+
+static int default_cpu_map(void)
+{
+ int nr_cpus, i;
+
+ nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+ assert(nr_cpus <= MAX_NR_CPUS);
+ assert((int)nr_cpus >= 0);
+
+ for (i = 0; i < nr_cpus; ++i)
+ cpumap[i] = i;
+
+ return nr_cpus;
+}
+
+static int read_all_cpu_map(void)
+{
+ FILE *onlnf;
+ int nr_cpus = 0;
+ int n, cpu, prev;
+ char sep;
+
+ onlnf = fopen("/sys/devices/system/cpu/online", "r");
+ if (!onlnf)
+ return default_cpu_map();
+
+ sep = 0;
+ prev = -1;
+ for (;;) {
+ n = fscanf(onlnf, "%u%c", &cpu, &sep);
+ if (n <= 0)
+ break;
+ if (prev >= 0) {
+ assert(nr_cpus + cpu - prev - 1 < MAX_NR_CPUS);
+ while (++prev < cpu)
+ cpumap[nr_cpus++] = prev;
+ }
+ assert (nr_cpus < MAX_NR_CPUS);
+ cpumap[nr_cpus++] = cpu;
+ if (n == 2 && sep == '-')
+ prev = cpu;
+ else
+ prev = -1;
+ if (n == 1 || sep == '\n')
+ break;
+ }
+ fclose(onlnf);
+ if (nr_cpus > 0)
+ return nr_cpus;
+
+ return default_cpu_map();
+}
+
+int read_cpu_map(const char *cpu_list)
+{
+ unsigned long start_cpu, end_cpu = 0;
+ char *p = NULL;
+ int i, nr_cpus = 0;
+
+ if (!cpu_list)
+ return read_all_cpu_map();
+
+ if (!isdigit(*cpu_list))
+ goto invalid;
+
+ while (isdigit(*cpu_list)) {
+ p = NULL;
+ start_cpu = strtoul(cpu_list, &p, 0);
+ if (start_cpu >= INT_MAX
+ || (*p != '\0' && *p != ',' && *p != '-'))
+ goto invalid;
+
+ if (*p == '-') {
+ cpu_list = ++p;
+ p = NULL;
+ end_cpu = strtoul(cpu_list, &p, 0);
+
+ if (end_cpu >= INT_MAX || (*p != '\0' && *p != ','))
+ goto invalid;
+
+ if (end_cpu < start_cpu)
+ goto invalid;
+ } else {
+ end_cpu = start_cpu;
+ }
+
+ for (; start_cpu <= end_cpu; start_cpu++) {
+ /* check for duplicates */
+ for (i = 0; i < nr_cpus; i++)
+ if (cpumap[i] == (int)start_cpu)
+ goto invalid;
+
+ assert(nr_cpus < MAX_NR_CPUS);
+ cpumap[nr_cpus++] = (int)start_cpu;
+ }
+ if (*p)
+ ++p;
+
+ cpu_list = p;
+ }
+ if (nr_cpus > 0)
+ return nr_cpus;
+
+ return default_cpu_map();
+invalid:
+ return -1;
+}
diff --git a/tools/lib/lk/cpumap.h b/tools/lib/lk/cpumap.h
new file mode 100644
index 0000000..1d7bd56
--- /dev/null
+++ b/tools/lib/lk/cpumap.h
@@ -0,0 +1,7 @@
+#ifndef __LK_CPUMAP_H
+#define __LK_CPUMAP_H
+
+extern int read_cpu_map(const char *cpu_list);
+extern int cpumap[];
+
+#endif /* __LK_CPUMAP_H */
diff --git a/tools/lib/lk/hweight.c b/tools/lib/lk/hweight.c
new file mode 100644
index 0000000..5c1d0d0
--- /dev/null
+++ b/tools/lib/lk/hweight.c
@@ -0,0 +1,31 @@
+#include <linux/bitops.h>
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+
+unsigned int hweight32(unsigned int w)
+{
+ unsigned int res = w - ((w >> 1) & 0x55555555);
+ res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+ res = (res + (res >> 4)) & 0x0F0F0F0F;
+ res = res + (res >> 8);
+ return (res + (res >> 16)) & 0x000000FF;
+}
+
+unsigned long hweight64(__u64 w)
+{
+#if BITS_PER_LONG == 32
+ return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w);
+#elif BITS_PER_LONG == 64
+ __u64 res = w - ((w >> 1) & 0x5555555555555555ul);
+ res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul);
+ res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful;
+ res = res + (res >> 8);
+ res = res + (res >> 16);
+ return (res + (res >> 32)) & 0x00000000000000FFul;
+#endif
+}
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6aa2fe3..df815d6 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -1,6 +1,4 @@
-ifeq ("$(origin O)", "command line")
- OUTPUT := $(O)/
-endif
+include ../Makefile.lib
# The default target of this Makefile is...
all::
@@ -191,33 +189,6 @@ $(shell sh -c 'mkdir -p $(OUTPUT)arch/$(ARCH)/util/' 2> /dev/null)
# CFLAGS and LDFLAGS are for the users to override from the command line.
-#
-# Include saner warnings here, which can catch bugs:
-#
-
-EXTRA_WARNINGS := -Wformat
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-security
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-y2k
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wshadow
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Winit-self
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wpacked
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wredundant-decls
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstack-protector
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstrict-aliasing=3
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-default
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-enum
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wno-system-headers
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wundef
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wvolatile-register-var
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wwrite-strings
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wbad-function-cast
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wmissing-declarations
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wmissing-prototypes
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wnested-externs
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wold-style-definition
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstrict-prototypes
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wdeclaration-after-statement
-
ifeq ("$(origin DEBUG)", "command line")
PERF_DEBUG = $(DEBUG)
endif
@@ -297,7 +268,7 @@ endif
# Those must not be GNU-specific; they are shared with perl/ which may
# be built by a different compiler. (Note that this is an artifact now
# but it still might be nice to keep that distinction.)
-BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include
+BASIC_CFLAGS += -Iutil/include -Iarch/$(ARCH)/include
BASIC_LDFLAGS =
# Guard against environment variables
@@ -413,7 +384,6 @@ LIB_H += util/trace-event.h
LIB_H += util/probe-finder.h
LIB_H += util/probe-event.h
LIB_H += util/pstack.h
-LIB_H += util/cpumap.h
LIB_OBJS += $(OUTPUT)util/abspath.o
LIB_OBJS += $(OUTPUT)util/alias.o
@@ -430,8 +400,6 @@ LIB_OBJS += $(OUTPUT)util/parse-options.o
LIB_OBJS += $(OUTPUT)util/parse-events.o
LIB_OBJS += $(OUTPUT)util/path.o
LIB_OBJS += $(OUTPUT)util/rbtree.o
-LIB_OBJS += $(OUTPUT)util/bitmap.o
-LIB_OBJS += $(OUTPUT)util/hweight.o
LIB_OBJS += $(OUTPUT)util/run-command.o
LIB_OBJS += $(OUTPUT)util/quote.o
LIB_OBJS += $(OUTPUT)util/strbuf.o
@@ -460,7 +428,6 @@ LIB_OBJS += $(OUTPUT)util/sort.o
LIB_OBJS += $(OUTPUT)util/hist.o
LIB_OBJS += $(OUTPUT)util/probe-event.o
LIB_OBJS += $(OUTPUT)util/util.o
-LIB_OBJS += $(OUTPUT)util/cpumap.o
BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
@@ -490,7 +457,9 @@ BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
BUILTIN_OBJS += $(OUTPUT)builtin-test.o
BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
-PERFLIBS = $(LIB_FILE)
+LKLIB = ../lib/lklib.a
+
+PERFLIBS = $(LIB_FILE) $(LKLIB)
#
# Platform specific tweaks
diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h
index f7781c6..0c7ee07 100644
--- a/tools/perf/bench/bench.h
+++ b/tools/perf/bench/bench.h
@@ -1,6 +1,8 @@
#ifndef BENCH_H
#define BENCH_H
+#include <linux/compiler.h>
+
extern int bench_sched_messaging(int argc, const char **argv, const char *prefix);
extern int bench_sched_pipe(int argc, const char **argv, const char *prefix);
extern int bench_mem_memcpy(int argc, const char **argv, const char *prefix __used);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 86b1c3b..499dc75 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -21,7 +21,7 @@
#include "util/debug.h"
#include "util/session.h"
#include "util/symbol.h"
-#include "util/cpumap.h"
+#include <lk/cpumap.h>
#include <unistd.h>
#include <sched.h>
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a6b4d44..4430d51 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -45,7 +45,7 @@
#include "util/event.h"
#include "util/debug.h"
#include "util/header.h"
-#include "util/cpumap.h"
+#include <lk/cpumap.h>
#include "util/thread.h"
#include <sys/prctl.h>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 1e8e92e..def254a 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -28,7 +28,7 @@
#include <linux/rbtree.h>
#include "util/parse-options.h"
#include "util/parse-events.h"
-#include "util/cpumap.h"
+#include <lk/cpumap.h>
#include "util/debug.h"
diff --git a/tools/perf/util/bitmap.c b/tools/perf/util/bitmap.c
deleted file mode 100644
index 5e230ac..0000000
--- a/tools/perf/util/bitmap.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * From lib/bitmap.c
- * Helper functions for bitmap.h.
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2. See the file COPYING for more details.
- */
-#include <linux/bitmap.h>
-
-int __bitmap_weight(const unsigned long *bitmap, int bits)
-{
- int k, w = 0, lim = bits/BITS_PER_LONG;
-
- for (k = 0; k < lim; k++)
- w += hweight_long(bitmap[k]);
-
- if (bits % BITS_PER_LONG)
- w += hweight_long(bitmap[k] & BITMAP_LAST_WORD_MASK(bits));
-
- return w;
-}
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 27e9ebe..0444fc2 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -5,6 +5,7 @@
#include "util.h"
#include "strbuf.h"
#include "../perf.h"
+#include <linux/compiler.h>
#define CMD_EXEC_PATH "--exec-path"
#define CMD_PERF_DIR "--perf-dir="
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
deleted file mode 100644
index 0f9b8d7..0000000
--- a/tools/perf/util/cpumap.c
+++ /dev/null
@@ -1,114 +0,0 @@
-#include "util.h"
-#include "../perf.h"
-#include "cpumap.h"
-#include <assert.h>
-#include <stdio.h>
-
-int cpumap[MAX_NR_CPUS];
-
-static int default_cpu_map(void)
-{
- int nr_cpus, i;
-
- nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
- assert(nr_cpus <= MAX_NR_CPUS);
- assert((int)nr_cpus >= 0);
-
- for (i = 0; i < nr_cpus; ++i)
- cpumap[i] = i;
-
- return nr_cpus;
-}
-
-static int read_all_cpu_map(void)
-{
- FILE *onlnf;
- int nr_cpus = 0;
- int n, cpu, prev;
- char sep;
-
- onlnf = fopen("/sys/devices/system/cpu/online", "r");
- if (!onlnf)
- return default_cpu_map();
-
- sep = 0;
- prev = -1;
- for (;;) {
- n = fscanf(onlnf, "%u%c", &cpu, &sep);
- if (n <= 0)
- break;
- if (prev >= 0) {
- assert(nr_cpus + cpu - prev - 1 < MAX_NR_CPUS);
- while (++prev < cpu)
- cpumap[nr_cpus++] = prev;
- }
- assert (nr_cpus < MAX_NR_CPUS);
- cpumap[nr_cpus++] = cpu;
- if (n == 2 && sep == '-')
- prev = cpu;
- else
- prev = -1;
- if (n == 1 || sep == '\n')
- break;
- }
- fclose(onlnf);
- if (nr_cpus > 0)
- return nr_cpus;
-
- return default_cpu_map();
-}
-
-int read_cpu_map(const char *cpu_list)
-{
- unsigned long start_cpu, end_cpu = 0;
- char *p = NULL;
- int i, nr_cpus = 0;
-
- if (!cpu_list)
- return read_all_cpu_map();
-
- if (!isdigit(*cpu_list))
- goto invalid;
-
- while (isdigit(*cpu_list)) {
- p = NULL;
- start_cpu = strtoul(cpu_list, &p, 0);
- if (start_cpu >= INT_MAX
- || (*p != '\0' && *p != ',' && *p != '-'))
- goto invalid;
-
- if (*p == '-') {
- cpu_list = ++p;
- p = NULL;
- end_cpu = strtoul(cpu_list, &p, 0);
-
- if (end_cpu >= INT_MAX || (*p != '\0' && *p != ','))
- goto invalid;
-
- if (end_cpu < start_cpu)
- goto invalid;
- } else {
- end_cpu = start_cpu;
- }
-
- for (; start_cpu <= end_cpu; start_cpu++) {
- /* check for duplicates */
- for (i = 0; i < nr_cpus; i++)
- if (cpumap[i] == (int)start_cpu)
- goto invalid;
-
- assert(nr_cpus < MAX_NR_CPUS);
- cpumap[nr_cpus++] = (int)start_cpu;
- }
- if (*p)
- ++p;
-
- cpu_list = p;
- }
- if (nr_cpus > 0)
- return nr_cpus;
-
- return default_cpu_map();
-invalid:
- return -1;
-}
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
deleted file mode 100644
index 3e60f56..0000000
--- a/tools/perf/util/cpumap.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef __PERF_CPUMAP_H
-#define __PERF_CPUMAP_H
-
-extern int read_cpu_map(const char *cpu_list);
-extern int cpumap[];
-
-#endif /* __PERF_CPUMAP_H */
diff --git a/tools/perf/util/hweight.c b/tools/perf/util/hweight.c
deleted file mode 100644
index 5c1d0d0..0000000
--- a/tools/perf/util/hweight.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <linux/bitops.h>
-
-/**
- * hweightN - returns the hamming weight of a N-bit word
- * @x: the word to weigh
- *
- * The Hamming Weight of a number is the total number of bits set in it.
- */
-
-unsigned int hweight32(unsigned int w)
-{
- unsigned int res = w - ((w >> 1) & 0x55555555);
- res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
- res = (res + (res >> 4)) & 0x0F0F0F0F;
- res = res + (res >> 8);
- return (res + (res >> 16)) & 0x000000FF;
-}
-
-unsigned long hweight64(__u64 w)
-{
-#if BITS_PER_LONG == 32
- return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w);
-#elif BITS_PER_LONG == 64
- __u64 res = w - ((w >> 1) & 0x5555555555555555ul);
- res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul);
- res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful;
- res = res + (res >> 8);
- res = res + (res >> 16);
- return (res + (res >> 32)) & 0x00000000000000FFul;
-#endif
-}
--
1.7.1
--
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