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Subject[PATCH 08/20] perf: Export cpumap
Date
From: Borislav Petkov <borislav.petkov@amd.com>

Export cpu counting and cpumap manipulating utils for general use. This
pulls ctype.c along.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
tools/lib/lk/Makefile | 3 +
tools/lib/lk/cpumap.c | 114 +++++++++++++++++++++++++++++++++++++++++++
tools/lib/lk/cpumap.h | 7 +++
tools/lib/lk/ctype.c | 39 +++++++++++++++
tools/perf/Makefile | 3 -
tools/perf/builtin-record.c | 2 +-
tools/perf/builtin-stat.c | 2 +-
tools/perf/builtin-top.c | 2 +-
tools/perf/util/cpumap.c | 114 -------------------------------------------
tools/perf/util/cpumap.h | 7 ---
tools/perf/util/ctype.c | 39 ---------------
11 files changed, 166 insertions(+), 166 deletions(-)
create mode 100644 tools/lib/lk/cpumap.c
create mode 100644 tools/lib/lk/cpumap.h
create mode 100644 tools/lib/lk/ctype.c
delete mode 100644 tools/perf/util/cpumap.c
delete mode 100644 tools/perf/util/cpumap.h
delete mode 100644 tools/perf/util/ctype.c
diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile
index 823bbb5..ff94b2e 100644
--- a/tools/lib/lk/Makefile
+++ b/tools/lib/lk/Makefile
@@ -7,9 +7,12 @@ LIB_OBJS=
LIB_H += debugfs.h
LIB_H += util.h
LIB_H += types.h
+LIB_H += cpumap.h

LIB_OBJS += debugfs.o
LIB_OBJS += usage.o
+LIB_OBJS += cpumap.o
+LIB_OBJS += ctype.o

LIBFILE = $(LIB_OUTPUT)lklib.a

diff --git a/tools/lib/lk/cpumap.c b/tools/lib/lk/cpumap.c
new file mode 100644
index 0000000..7c3008a
--- /dev/null
+++ b/tools/lib/lk/cpumap.c
@@ -0,0 +1,114 @@
+#include <lk/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/ctype.c b/tools/lib/lk/ctype.c
new file mode 100644
index 0000000..aada3ac
--- /dev/null
+++ b/tools/lib/lk/ctype.c
@@ -0,0 +1,39 @@
+/*
+ * Sane locale-independent, ASCII ctype.
+ *
+ * No surprises, and works with signed and unsigned chars.
+ */
+#include "util.h"
+
+enum {
+ S = GIT_SPACE,
+ A = GIT_ALPHA,
+ D = GIT_DIGIT,
+ G = GIT_GLOB_SPECIAL, /* *, ?, [, \\ */
+ R = GIT_REGEX_SPECIAL, /* $, (, ), +, ., ^, {, | * */
+ P = GIT_PRINT_EXTRA, /* printable - alpha - digit - glob - regex */
+
+ PS = GIT_SPACE | GIT_PRINT_EXTRA,
+};
+
+unsigned char sane_ctype[256] = {
+/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
+
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, S, S, 0, 0, S, 0, 0, /* 0.. 15 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 16.. 31 */
+ PS,P, P, P, R, P, P, P, R, R, G, R, P, P, R, P, /* 32.. 47 */
+ D, D, D, D, D, D, D, D, D, D, P, P, P, P, P, G, /* 48.. 63 */
+ P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 64.. 79 */
+ A, A, A, A, A, A, A, A, A, A, A, G, G, P, R, P, /* 80.. 95 */
+ P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 96..111 */
+ A, A, A, A, A, A, A, A, A, A, A, R, R, P, P, 0, /* 112..127 */
+ /* Nothing in the 128.. range */
+};
+
+const char *graph_line =
+ "_____________________________________________________________________"
+ "_____________________________________________________________________";
+const char *graph_dotted_line =
+ "---------------------------------------------------------------------"
+ "---------------------------------------------------------------------"
+ "---------------------------------------------------------------------";
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index d8ef5a5..49690b8 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -385,13 +385,11 @@ 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
LIB_OBJS += $(OUTPUT)util/build-id.o
LIB_OBJS += $(OUTPUT)util/config.o
-LIB_OBJS += $(OUTPUT)util/ctype.o
LIB_OBJS += $(OUTPUT)util/environment.o
LIB_OBJS += $(OUTPUT)util/event.o
LIB_OBJS += $(OUTPUT)util/exec_cmd.o
@@ -430,7 +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

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 936e231..1fa7a06 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 12dabd3..1f60239 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 7ba3759..b5bc157 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/cpumap.c b/tools/perf/util/cpumap.c
deleted file mode 100644
index 8ef8cef..0000000
--- a/tools/perf/util/cpumap.c
+++ /dev/null
@@ -1,114 +0,0 @@
-#include <lk/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/ctype.c b/tools/perf/util/ctype.c
deleted file mode 100644
index 3507362..0000000
--- a/tools/perf/util/ctype.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Sane locale-independent, ASCII ctype.
- *
- * No surprises, and works with signed and unsigned chars.
- */
-#include "cache.h"
-
-enum {
- S = GIT_SPACE,
- A = GIT_ALPHA,
- D = GIT_DIGIT,
- G = GIT_GLOB_SPECIAL, /* *, ?, [, \\ */
- R = GIT_REGEX_SPECIAL, /* $, (, ), +, ., ^, {, | * */
- P = GIT_PRINT_EXTRA, /* printable - alpha - digit - glob - regex */
-
- PS = GIT_SPACE | GIT_PRINT_EXTRA,
-};
-
-unsigned char sane_ctype[256] = {
-/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-
- 0, 0, 0, 0, 0, 0, 0, 0, 0, S, S, 0, 0, S, 0, 0, /* 0.. 15 */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 16.. 31 */
- PS,P, P, P, R, P, P, P, R, R, G, R, P, P, R, P, /* 32.. 47 */
- D, D, D, D, D, D, D, D, D, D, P, P, P, P, P, G, /* 48.. 63 */
- P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 64.. 79 */
- A, A, A, A, A, A, A, A, A, A, A, G, G, P, R, P, /* 80.. 95 */
- P, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, /* 96..111 */
- A, A, A, A, A, A, A, A, A, A, A, R, R, P, P, 0, /* 112..127 */
- /* Nothing in the 128.. range */
-};
-
-const char *graph_line =
- "_____________________________________________________________________"
- "_____________________________________________________________________";
-const char *graph_dotted_line =
- "---------------------------------------------------------------------"
- "---------------------------------------------------------------------"
- "---------------------------------------------------------------------";
--
1.7.3.1


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