base number of counters on DENSITY; use ~20% of textsize

SCCS-vsn: lib/libc/gmon/gmon.c 4.6

diff --git a/usr/src/lib/libc/gmon/gmon.c b/usr/src/lib/libc/gmon/gmon.c
index f235c54..3b63685 100644 (file)
--- a/usr/src/lib/libc/gmon/gmon.c
+++ b/usr/src/lib/libc/gmon/gmon.c
@@ -1,4 +1,4 @@
-static char *sccsid = "@(#)gmon.c      4.5 (Berkeley) %G%";
+static char *sccsid = "@(#)gmon.c      4.6 (Berkeley) %G%";

 
 #ifdef DEBUG
 #include <stdio.h>
 
 #ifdef DEBUG
 #include <stdio.h>


@@ -46,7 +46,13 @@ monstartup(lowpc, highpc)
        froms = 0;
        return;
     }
        froms = 0;
        return;
     }

-    tos = (struct tostruct *) sbrk(s_textsize);
+    limit = s_textsize * DENSITY / 100;
+    if ( limit < MINCNT ) {
+       limit = MINCNT;
+    } else if ( limit > 65534 ) {
+       limit = 65534;
+    }
+    tos = (struct tostruct *) sbrk( limit * sizeof( struct tostruct ) );

     if ( tos == (struct tostruct *) -1 ) {
        write( 2 , MSG , sizeof(MSG) );
        froms = 0;
     if ( tos == (struct tostruct *) -1 ) {
        write( 2 , MSG , sizeof(MSG) );
        froms = 0;


@@ -54,13 +60,12 @@ monstartup(lowpc, highpc)
        return;
     }
     tos[0].link = 0;
        return;
     }
     tos[0].link = 0;

-    limit = s_textsize / sizeof(struct tostruct);

        /*
         *      tolimit is what mcount checks to see if
         *      all the data structures are ready!!!
         *      make sure it won't overflow.
         */
        /*
         *      tolimit is what mcount checks to see if
         *      all the data structures are ready!!!
         *      make sure it won't overflow.
         */

-    tolimit = limit > 65534 ? 65534 : limit;
+    tolimit = limit;

     monitor( lowpc , highpc , buffer , monsize , tolimit );
 }
 
     monitor( lowpc , highpc , buffer , monsize , tolimit );
 }