get rid of special case brk(); integrate into standard brk()

SCCS-vsn: lib/libc/gmon/gmon.c 4.13

diff --git a/usr/src/lib/libc/gmon/gmon.c b/usr/src/lib/libc/gmon/gmon.c
index d098de7..58c1b46 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      4.12 (Berkeley) %G%";
+static char *sccsid = "@(#)gmon.c      4.13 (Berkeley) %G%";

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


@@ -16,7 +16,6 @@ static long           tolimit = 0;
 static char            *s_lowpc = 0;
 static char            *s_highpc = 0;
 static unsigned long   s_textsize = 0;
 static char            *s_lowpc = 0;
 static char            *s_highpc = 0;
 static unsigned long   s_textsize = 0;

-static char            *minsbrk = 0;

 
 static int     ssiz;
 static char    *sbuf;
 
 static int     ssiz;
 static char    *sbuf;


@@ -33,6 +32,7 @@ monstartup(lowpc, highpc)
     int                        monsize;
     char               *buffer;
     char               *sbrk();
     int                        monsize;
     char               *buffer;
     char               *sbrk();

+    extern char                *minbrk;

 
        /*
         *      round lowpc and highpc to multiples of the density we're using
 
        /*
         *      round lowpc and highpc to multiples of the density we're using


@@ -70,7 +70,7 @@ monstartup(lowpc, highpc)
        tos = 0;
        return;
     }
        tos = 0;
        return;
     }

-    minsbrk = sbrk(0);
+    minbrk = sbrk(0);

     tos[0].link = 0;
     monitor( lowpc , highpc , buffer , monsize , tolimit );
 }
     tos[0].link = 0;
     monitor( lowpc , highpc , buffer , monsize , tolimit );
 }


@@ -292,24 +292,3 @@ moncontrol(mode)
        profiling = 3;
     }
 }
        profiling = 3;
     }
 }

-
-/*
- * This is a stub for the "brk" system call, which we want to
- * catch so that it will not deallocate our data space.
- * (of which the program is not aware)
- */
-extern char *curbrk;
-
-brk(addr)
-       char *addr;
-{
-
-       if (addr < minsbrk)
-               addr = minsbrk;
-       asm("   chmk    $17");
-       asm("   jcc     1f");
-       asm("   jmp     cerror");
-asm("1:");
-       curbrk = addr;
-       return (0);
-}