doc: various minor improvements and fixes

[bison.git] / lib / timevar.c

diff --git a/lib/timevar.c b/lib/timevar.c
index 3cc383891a9d073b67e9ffccc8bb55abcea065fe..355ecb55769ebf8651cb671c4f689d031776c214 100644 (file)
--- a/lib/timevar.c
+++ b/lib/timevar.c
@@ -1,38 +1,42 @@
 /* Timing variables for measuring compiler performance.
 /* Timing variables for measuring compiler performance.

-   Copyright (C) 2000 Free Software Foundation, Inc.
+
+   Copyright (C) 2000, 2002, 2004, 2006, 2009-2012 Free Software
+   Foundation, Inc.
+

    Contributed by Alex Samuel <samuel@codesourcery.com>
 
    Contributed by Alex Samuel <samuel@codesourcery.com>
 

-This file is part of GCC.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.

 
 

-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.

 
 

-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

 
 

-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+#include <config.h>

 
 #if IN_GCC
 
 
 #if IN_GCC
 

-/* These are the original includes --akim.  */
-#include "config.h"

 #include "system.h"
 #include "intl.h"
 #include "rtl.h"
 
 #else
 
 #include "system.h"
 #include "intl.h"
 #include "rtl.h"
 
 #else
 

-/* These are my replacements by hand --akim.
-   There is another change below, flag with IN_GCC.  */
+/* This source file is taken from the GCC source code, with slight
+   modifications that are under control of the IN_GCC preprocessor
+   variable.  The !IN_GCC part of this file is specific to Bison.  */
+

 # include "../src/system.h"
 # include "../src/system.h"

-int time_report = 0;
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# endif
+int timevar_report = 0;

 
 #endif
 
 
 #endif
 


@@ -59,13 +63,13 @@ struct tms
 #endif
 
 #if defined HAVE_DECL_GETRUSAGE && !HAVE_DECL_GETRUSAGE
 #endif
 
 #if defined HAVE_DECL_GETRUSAGE && !HAVE_DECL_GETRUSAGE

-extern int getrusage PARAMS ((int, struct rusage *));
+extern int getrusage (int, struct rusage *);

 #endif
 #if defined HAVE_DECL_TIMES && !HAVE_DECL_TIMES
 #endif
 #if defined HAVE_DECL_TIMES && !HAVE_DECL_TIMES

-extern clock_t times PARAMS ((struct tms *));
+extern clock_t times (struct tms *);

 #endif
 #if defined HAVE_DECL_CLOCK && !HAVE_DECL_CLOCK
 #endif
 #if defined HAVE_DECL_CLOCK && !HAVE_DECL_CLOCK

-extern clock_t clock PARAMS ((void));
+extern clock_t clock (void);

 #endif
 
 #ifndef RUSAGE_SELF
 #endif
 
 #ifndef RUSAGE_SELF


@@ -114,12 +118,12 @@ extern clock_t clock PARAMS ((void));
    _constants_ variable at run time, anyway?  */
 #ifdef USE_TIMES
 static float ticks_to_msec;
    _constants_ variable at run time, anyway?  */
 #ifdef USE_TIMES
 static float ticks_to_msec;

-#define TICKS_TO_MSEC (1 / (float)TICKS_PER_SECOND)
+#define TICKS_TO_MSEC (1.0 / TICKS_PER_SECOND)

 #endif
 
 #ifdef USE_CLOCK
 static float clocks_to_msec;
 #endif
 
 #ifdef USE_CLOCK
 static float clocks_to_msec;

-#define CLOCKS_TO_MSEC (1 / (float)CLOCKS_PER_SEC)
+#define CLOCKS_TO_MSEC (1.0 / CLOCKS_PER_SEC)

 #endif
 
 #if IN_GCC
 #endif
 
 #if IN_GCC


@@ -129,8 +133,8 @@ static float clocks_to_msec;
 
 /* See timevar.h for an explanation of timing variables.  */
 
 
 /* See timevar.h for an explanation of timing variables.  */
 

-/* This macro evaluates to non-zero if timing variables are enabled.  */
-#define TIMEVAR_ENABLE (time_report)
+/* This macro evaluates to nonzero if timing variables are enabled.  */
+#define TIMEVAR_ENABLE (timevar_report)

 
 /* A timing variable.  */
 
 
 /* A timing variable.  */
 


@@ -183,15 +187,14 @@ static struct timevar_stack_def *unused_stack_instances;
    element.  */
 static struct timevar_time_def start_time;
 
    element.  */
 static struct timevar_time_def start_time;
 

-static void get_time
-  PARAMS ((struct timevar_time_def *));
-static void timevar_accumulate
-  PARAMS ((struct timevar_time_def *, struct timevar_time_def *,
-          struct timevar_time_def *));
+static void get_time (struct timevar_time_def *);
+static void timevar_accumulate (struct timevar_time_def *,
+                               struct timevar_time_def *,
+                               struct timevar_time_def *);

 
 /* Fill the current times into TIME.  The definition of this function
    also defines any or all of the HAVE_USER_TIME, HAVE_SYS_TIME, and
 
 /* Fill the current times into TIME.  The definition of this function
    also defines any or all of the HAVE_USER_TIME, HAVE_SYS_TIME, and

-   HAVA_WALL_TIME macros.  */
+   HAVE_WALL_TIME macros.  */

 
 static void
 get_time (now)
 
 static void
 get_time (now)


@@ -208,12 +211,21 @@ get_time (now)
 #ifdef USE_TIMES
     struct tms tms;
     now->wall = times (&tms)  * ticks_to_msec;
 #ifdef USE_TIMES
     struct tms tms;
     now->wall = times (&tms)  * ticks_to_msec;

+#if IN_GCC

     now->user = tms.tms_utime * ticks_to_msec;
     now->sys  = tms.tms_stime * ticks_to_msec;
     now->user = tms.tms_utime * ticks_to_msec;
     now->sys  = tms.tms_stime * ticks_to_msec;

+#else
+    now->user = (tms.tms_utime + tms.tms_cutime) * ticks_to_msec;
+    now->sys  = (tms.tms_stime + tms.tms_cstime) * ticks_to_msec;
+#endif

 #endif
 #ifdef USE_GETRUSAGE
     struct rusage rusage;
 #endif
 #ifdef USE_GETRUSAGE
     struct rusage rusage;

+#if IN_GCC

     getrusage (RUSAGE_SELF, &rusage);
     getrusage (RUSAGE_SELF, &rusage);

+#else
+    getrusage (RUSAGE_CHILDREN, &rusage);
+#endif

     now->user = rusage.ru_utime.tv_sec + rusage.ru_utime.tv_usec * 1e-6;
     now->sys  = rusage.ru_stime.tv_sec + rusage.ru_stime.tv_usec * 1e-6;
 #endif
     now->user = rusage.ru_utime.tv_sec + rusage.ru_utime.tv_usec * 1e-6;
     now->sys  = rusage.ru_stime.tv_sec + rusage.ru_stime.tv_usec * 1e-6;
 #endif


@@ -223,17 +235,17 @@ get_time (now)
   }
 }
 
   }
 }
 

-/* Add the difference between STOP_TIME and START_TIME to TIMER.  */
+/* Add the difference between STOP and START to TIMER.  */

 
 static void
 
 static void

-timevar_accumulate (timer, start_time, stop_time)
-  struct timevar_time_def *timer;
-  struct timevar_time_def *start_time;
-  struct timevar_time_def *stop_time;
+timevar_accumulate (timer, start, stop)
+     struct timevar_time_def *timer;
+     struct timevar_time_def *start;
+     struct timevar_time_def *stop;

 {
 {

-  timer->user += stop_time->user - start_time->user;
-  timer->sys += stop_time->sys - start_time->sys;
-  timer->wall += stop_time->wall - start_time->wall;
+  timer->user += stop->user - start->user;
+  timer->sys += stop->sys - start->sys;
+  timer->wall += stop->wall - start->wall;

 }
 
 /* Initialize timing variables.  */
 }
 
 /* Initialize timing variables.  */


@@ -435,7 +447,7 @@ timevar_print (fp)
      FILE *fp;
 {
   /* Only print stuff if we have some sort of time information.  */
      FILE *fp;
 {
   /* Only print stuff if we have some sort of time information.  */

-#if defined (HAVE_USER_TIME) || defined (HAVE_SYS_TIME) || defined (HAVE_WALL_TIME)
+#if defined HAVE_USER_TIME || defined HAVE_SYS_TIME || defined HAVE_WALL_TIME

   unsigned int /* timevar_id_t */ id;
   struct timevar_time_def *total = &timevars[TV_TOTAL].elapsed;
   struct timevar_time_def now;
   unsigned int /* timevar_id_t */ id;
   struct timevar_time_def *total = &timevars[TV_TOTAL].elapsed;
   struct timevar_time_def now;


@@ -476,7 +488,7 @@ timevar_print (fp)
        continue;
 
       /* Don't print timing variables if we're going to get a row of
        continue;
 
       /* Don't print timing variables if we're going to get a row of

-         zeroes.  */
+        zeroes.  */

       if (tv->elapsed.user < tiny
          && tv->elapsed.sys < tiny
          && tv->elapsed.wall < tiny)
       if (tv->elapsed.user < tiny
          && tv->elapsed.sys < tiny
          && tv->elapsed.wall < tiny)


@@ -548,6 +560,6 @@ print_time (str, total)
   fprintf (stderr,
           _("time in %s: %ld.%06ld (%ld%%)\n"),
           str, total / 1000000, total % 1000000,
   fprintf (stderr,
           _("time in %s: %ld.%06ld (%ld%%)\n"),
           str, total / 1000000, total % 1000000,

-          all_time == 0 ? 0
-          : (long) (((100.0 * (double) total) / (double) all_time) + .5));
+          all_time == 0 ? 0
+          : (long) (((100.0 * (double) total) / (double) all_time) + .5));

 }
 }