* data/c.m4 (b4_c_modern): New macro, with a new provision for _MSC_VER.

[bison.git] / lib / timevar.c

diff --git a/lib/timevar.c b/lib/timevar.c
index 7a10fe78b4780815d67ff7089e27c7aa95785344..33eec0d832ae03ea71225846507140ab2613052b 100644 (file)
--- a/lib/timevar.c
+++ b/lib/timevar.c
@@ -1,29 +1,47 @@
 /* Timing variables for measuring compiler performance.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc.
    Contributed by Alex Samuel <samuel@codesourcery.com>
 
-This file is part of GCC.
+This file is part of Bison, the GNU Compiler Compiler.
 
-GCC is free software; you can redistribute it and/or modify it under
+Bison 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.
 
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+Bison 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 GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with Bison; see the file COPYING.  If not, write to the Free
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
 
 #include "config.h"
+
+#if IN_GCC
+
 #include "system.h"
 #include "intl.h"
 #include "rtl.h"
 
+#else
+
+/* 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"
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# endif
+int timevar_report = 0;
+
+#endif
+
+
 #ifdef HAVE_SYS_TIMES_H
 # include <sys/times.h>
 #endif
@@ -46,13 +64,13 @@ struct tms
 #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
-extern clock_t times PARAMS ((struct tms *));
+extern clock_t times (struct tms *);
 #endif
 #if defined HAVE_DECL_CLOCK && !HAVE_DECL_CLOCK
-extern clock_t clock PARAMS ((void));
+extern clock_t clock (void);
 #endif
 
 #ifndef RUSAGE_SELF
@@ -101,21 +119,23 @@ extern clock_t clock PARAMS ((void));
    _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;
-#define CLOCKS_TO_MSEC (1 / (float)CLOCKS_PER_SEC)
+#define CLOCKS_TO_MSEC (1.0 / CLOCKS_PER_SEC)
 #endif
 
+#if IN_GCC
 #include "flags.h"
+#endif
 #include "timevar.h"
 
 /* See timevar.h for an explanation of timing variables.  */
 
 /* This macro evaluates to nonzero if timing variables are enabled.  */
-#define TIMEVAR_ENABLE (time_report)
+#define TIMEVAR_ENABLE (timevar_report)
 
 /* A timing variable.  */
 
@@ -168,11 +188,10 @@ static struct timevar_stack_def *unused_stack_instances;
    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
@@ -193,12 +212,21 @@ get_time (now)
 #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;
+#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;
+#if IN_GCC
     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
@@ -208,17 +236,17 @@ 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
-timevar_accumulate (timer, start_time, stop_time)
+timevar_accumulate (timer, start, stop)
      struct timevar_time_def *timer;
-     struct timevar_time_def *start_time;
-     struct timevar_time_def *stop_time;
+     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.  */