perf symbols: Move hex2u64 and strxfrchar to symbol.c

Mostly used in symbol.c so move them there to reduce the number
of files needed to use the symbol system.

Also do some header adjustments with the same intent.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1269557941-15617-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

5 files changed, 76 insertions, 65 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a2014459125a..435781e0c205 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -5,6 +5,7 @@
 #include "parse-events.h"
 #include "exec_cmd.h"
 #include "string.h"
+#include "symbol.h"
 #include "cache.h"
 #include "header.h"
 #include "debugfs.h"
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index a175949ed216..d4389242cfd7 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -1,49 +1,6 @@
 #include "string.h"
 #include "util.h"
 
-static int hex(char ch)
-{
-        if ((ch >= '0') && (ch <= '9'))
-                return ch - '0';
-        if ((ch >= 'a') && (ch <= 'f'))
-                return ch - 'a' + 10;
-        if ((ch >= 'A') && (ch <= 'F'))
-                return ch - 'A' + 10;
-        return -1;
-}
-
-/*
- * While we find nice hex chars, build a long_val.
- * Return number of chars processed.
- */
-int hex2u64(const char *ptr, u64 *long_val)
-{
-        const char *p = ptr;
-        *long_val = 0;
-
-        while (*p) {
-                const int hex_val = hex(*p);
-
-                if (hex_val < 0)
-                        break;
-
-                *long_val = (*long_val << 4) | hex_val;
-                p++;
-        }
-
-        return p - ptr;
-}
-
-char *strxfrchar(char *s, char from, char to)
-{
-        char *p = s;
-
-        while ((p = strchr(p, from)) != NULL)
-                *p++ = to;
-
-        return s;
-}
-
 #define K 1024LL
 /*
  * perf_atoll()
diff --git a/tools/perf/util/string.h b/tools/perf/util/string.h
index 542e44de3719..700582416664 100644
--- a/tools/perf/util/string.h
+++ b/tools/perf/util/string.h
@@ -4,8 +4,6 @@
 #include <stdbool.h>
 #include "types.h"
 
-int hex2u64(const char *ptr, u64 *val);
-char *strxfrchar(char *s, char from, char to);
 s64 perf_atoll(const char *str);
 char **argv_split(const char *str, int *argcp);
 void argv_free(char **argv);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 3eb9de4baef3..f3d4151e46a1 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1,13 +1,19 @@
-#include "util.h"
-#include "../perf.h"
-#include "sort.h"
-#include "string.h"
+#define _GNU_SOURCE
+#include <ctype.h>
+#include <dirent.h>
+#include <errno.h>
+#include <libgen.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <fcntl.h>
+#include <unistd.h>
 #include "symbol.h"
-#include "thread.h"
+#include "strlist.h"
 
-#include "debug.h"
-
-#include <asm/bug.h>
 #include <libelf.h>
 #include <gelf.h>
 #include <elf.h>
@@ -114,8 +120,8 @@ static void map_groups__fixup_end(struct map_groups *self)
 static struct symbol *symbol__new(u64 start, u64 len, const char *name)
 {
         size_t namelen = strlen(name) + 1;
-        struct symbol *self = zalloc(symbol_conf.priv_size +
-                                     sizeof(*self) + namelen);
+        struct symbol *self = calloc(1, (symbol_conf.priv_size +
+                                         sizeof(*self) + namelen));
         if (self == NULL)
                 return NULL;
 
@@ -166,7 +172,7 @@ static void dso__set_basename(struct dso *self)
 
 struct dso *dso__new(const char *name)
 {
-        struct dso *self = zalloc(sizeof(*self) + strlen(name) + 1);
+        struct dso *self = calloc(1, sizeof(*self) + strlen(name) + 1);
 
         if (self != NULL) {
                 int i;
@@ -1382,13 +1388,13 @@ static int dso__kernel_module_get_build_id(struct dso *self)
         return 0;
 }
 
-static int map_groups__set_modules_path_dir(struct map_groups *self, char *dirname)
+static int map_groups__set_modules_path_dir(struct map_groups *self, char *dir_name)
 {
         struct dirent *dent;
-        DIR *dir = opendir(dirname);
+        DIR *dir = opendir(dir_name);
 
         if (!dir) {
-                pr_debug("%s: cannot open %s dir\n", __func__, dirname);
+                pr_debug("%s: cannot open %s dir\n", __func__, dir_name);
                 return -1;
         }
 
@@ -1401,7 +1407,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, char *dirna
                                 continue;
 
                         snprintf(path, sizeof(path), "%s/%s",
-                                 dirname, dent->d_name);
+                                 dir_name, dent->d_name);
                         if (map_groups__set_modules_path_dir(self, path) < 0)
                                 goto failure;
                 } else {
@@ -1421,7 +1427,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, char *dirna
                                 continue;
 
                         snprintf(path, sizeof(path), "%s/%s",
-                                 dirname, dent->d_name);
+                                 dir_name, dent->d_name);
 
                         long_name = strdup(path);
                         if (long_name == NULL)
@@ -1458,8 +1464,8 @@ static int map_groups__set_modules_path(struct map_groups *self)
  */
 static struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
 {
-        struct map *self = zalloc(sizeof(*self) +
-                                  (dso->kernel ? sizeof(struct kmap) : 0));
+        struct map *self = calloc(1, (sizeof(*self) +
+                                      (dso->kernel ? sizeof(struct kmap) : 0)));
         if (self != NULL) {
                 /*
                  * ->end will be filled after we load all the symbols
@@ -1963,3 +1969,46 @@ int map_groups__create_kernel_maps(struct map_groups *self,
         map_groups__fixup_end(self);
         return 0;
 }
+
+static int hex(char ch)
+{
+        if ((ch >= '0') && (ch <= '9'))
+                return ch - '0';
+        if ((ch >= 'a') && (ch <= 'f'))
+                return ch - 'a' + 10;
+        if ((ch >= 'A') && (ch <= 'F'))
+                return ch - 'A' + 10;
+        return -1;
+}
+
+/*
+ * While we find nice hex chars, build a long_val.
+ * Return number of chars processed.
+ */
+int hex2u64(const char *ptr, u64 *long_val)
+{
+        const char *p = ptr;
+        *long_val = 0;
+
+        while (*p) {
+                const int hex_val = hex(*p);
+
+                if (hex_val < 0)
+                        break;
+
+                *long_val = (*long_val << 4) | hex_val;
+                p++;
+        }
+
+        return p - ptr;
+}
+
+char *strxfrchar(char *s, char from, char to)
+{
+        char *p = s;
+
+        while ((p = strchr(p, from)) != NULL)
+                *p++ = to;
+
+        return s;
+}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index a4a894b8ea03..757fae3f5ee0 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -3,10 +3,11 @@
 
 #include <linux/types.h>
 #include <stdbool.h>
-#include "types.h"
+#include <stdint.h>
+#include "map.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
-#include "event.h"
+#include <stdio.h>
 
 #define DEBUG_CACHE_DIR ".debug"
 
@@ -29,6 +30,9 @@ static inline char *bfd_demangle(void __used *v, const char __used *c,
 #endif
 #endif
 
+int hex2u64(const char *ptr, u64 *val);
+char *strxfrchar(char *s, char from, char to);
+
 /*
  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  * for newer versions we can use mmap to reduce memory usage:
@@ -44,6 +48,8 @@ static inline char *bfd_demangle(void __used *v, const char __used *c,
 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
 #endif
 
+#define BUILD_ID_SIZE 20
+
 struct symbol {
         struct rb_node  rb_node;
         u64             start;