Changed to actually work. (On modern Linux systems the old version just

crashes. On old Linux systems it apparently only worked by accident.)

diff --git a/plat/linux386/libsys/sbrk.c b/plat/linux386/libsys/sbrk.c
index 121de9a..1b66460 100644 (file)
--- a/plat/linux386/libsys/sbrk.c
+++ b/plat/linux386/libsys/sbrk.c
@@ -9,23 +9,27 @@
 
 #define        OUT_OF_MEMORY (void*)(-1)       /* sbrk returns this on failure */
 
-extern char _end[1];
-
-static char* current = _end;
+static char* current = NULL;
  
 void* sbrk(intptr_t increment)
 {
        char* old;
        char* new;
+       char* actual;
        
+       if (!current)
+               current = (char*) _syscall(__NR_brk, 0, 0, 0);
+
        if (increment == 0)
                return current;
                
        old = current;
        new = old + increment;
-       if (brk(new) < 0)
+
+       actual = (char*) _syscall(__NR_brk, (quad) new, 0, 0);
+       if (actual < new)
                return OUT_OF_MEMORY;
                
-       current = new;
+       current = actual;
        return old;
 }