perf tools: Move parse_nsec_time to time-utils.c

Code move only; no functional change intended.

Committer notes:

Fix the build on Ubuntu 16.04 x86-64 cross-compiling to S/390, with this
set of auto-detected features:

  ...                         dwarf: [ on  ]
  ...            dwarf_getlocations: [ on  ]
  ...                         glibc: [ on  ]
  ...                          gtk2: [ OFF ]
  ...                      libaudit: [ OFF ]
  ...                        libbfd: [ OFF ]
  ...                        libelf: [ on  ]
  ...                       libnuma: [ OFF ]
  ...        numa_num_possible_cpus: [ OFF ]
  ...                       libperl: [ OFF ]
  ...                     libpython: [ OFF ]
  ...                      libslang: [ OFF ]
  ...                     libcrypto: [ OFF ]
  ...                     libunwind: [ OFF ]
  ...            libdw-dwarf-unwind: [ on  ]
  ...                          zlib: [ on  ]
  ...                          lzma: [ OFF ]
  ...                     get_cpuid: [ OFF ]
  ...                           bpf: [ on  ]

Where it was failing with:

    CC       /tmp/build/perf/util/time-utils.o
  util/time-utils.c: In function 'parse_nsec_time':
  util/time-utils.c:17:13: error: implicit declaration of function 'strtoul' [-Werror=implicit-function-declaration]
    time_sec = strtoul(str, &end, 10);
               ^
  util/time-utils.c:17:2: error: nested extern declaration of 'strtoul' [-Werror=nested-externs]
    time_sec = strtoul(str, &end, 10);
    ^
  util/time-utils.c: In function 'perf_time__parse_str':
  util/time-utils.c:93:2: error: implicit declaration of function 'free' [-Werror=implicit-function-declaration]
    free(str);
    ^
  util/time-utils.c:93:2: error: incompatible implicit declaration of built-in function 'free' [-Werror]
  util/time-utils.c:93:2: note: include '<stdlib.h>' or provide a declaration of 'free'

Do as suggested and add a '#include <stdlib.h>' to get the free() and strtoul()
declarations and fix the build.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1480439746-42695-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 37 insertions, 36 deletions

diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c
index 0443b2afd0cf..d1b21c72206d 100644
--- a/tools/perf/util/time-utils.c
+++ b/tools/perf/util/time-utils.c
@@ -1,5 +1,7 @@
+#include <stdlib.h>
 #include <string.h>
 #include <sys/time.h>
+#include <linux/time64.h>
 #include <time.h>
 #include <errno.h>
 #include <inttypes.h>
@@ -7,7 +9,39 @@
 #include "perf.h"
 #include "debug.h"
 #include "time-utils.h"
-#include "util.h"
+
+int parse_nsec_time(const char *str, u64 *ptime)
+{
+        u64 time_sec, time_nsec;
+        char *end;
+
+        time_sec = strtoul(str, &end, 10);
+        if (*end != '.' && *end != '\0')
+                return -1;
+
+        if (*end == '.') {
+                int i;
+                char nsec_buf[10];
+
+                if (strlen(++end) > 9)
+                        return -1;
+
+                strncpy(nsec_buf, end, 9);
+                nsec_buf[9] = '\0';
+
+                /* make it nsec precision */
+                for (i = strlen(nsec_buf); i < 9; i++)
+                        nsec_buf[i] = '0';
+
+                time_nsec = strtoul(nsec_buf, &end, 10);
+                if (*end != '\0')
+                        return -1;
+        } else
+                time_nsec = 0;
+
+        *ptime = time_sec * NSEC_PER_SEC + time_nsec;
+        return 0;
+}
 
 static int parse_timestr_sec_nsec(struct perf_time_interval *ptime,
                                   char *start_str, char *end_str)
diff --git a/tools/perf/util/time-utils.h b/tools/perf/util/time-utils.h
index 8f3e0e370be8..c1f197c4af6c 100644
--- a/tools/perf/util/time-utils.h
+++ b/tools/perf/util/time-utils.h
@@ -5,6 +5,8 @@ struct perf_time_interval {
         u64 start, end;
 };
 
+int parse_nsec_time(const char *str, u64 *ptime);
+
 int perf_time__parse_str(struct perf_time_interval *ptime, const char *ostr);
 
 bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp);
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 67ac765da27a..9ddd98827d12 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -400,39 +400,6 @@ void sighandler_dump_stack(int sig)
         raise(sig);
 }
 
-int parse_nsec_time(const char *str, u64 *ptime)
-{
-        u64 time_sec, time_nsec;
-        char *end;
-
-        time_sec = strtoul(str, &end, 10);
-        if (*end != '.' && *end != '\0')
-                return -1;
-
-        if (*end == '.') {
-                int i;
-                char nsec_buf[10];
-
-                if (strlen(++end) > 9)
-                        return -1;
-
-                strncpy(nsec_buf, end, 9);
-                nsec_buf[9] = '\0';
-
-                /* make it nsec precision */
-                for (i = strlen(nsec_buf); i < 9; i++)
-                        nsec_buf[i] = '0';
-
-                time_nsec = strtoul(nsec_buf, &end, 10);
-                if (*end != '\0')
-                        return -1;
-        } else
-                time_nsec = 0;
-
-        *ptime = time_sec * NSEC_PER_SEC + time_nsec;
-        return 0;
-}
-
 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz)
 {
         u64  sec = timestamp / NSEC_PER_SEC;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 79662d67891e..1d639e38aa82 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -179,8 +179,6 @@ static inline void *zalloc(size_t size)
 #undef tolower
 #undef toupper
 
-int parse_nsec_time(const char *str, u64 *ptime);
-
 extern unsigned char sane_ctype[256];
 #define GIT_SPACE               0x01
 #define GIT_DIGIT               0x02