malloc: put common memory functions to seperate file

These functions are needed independently of the specific
malloc implementation, so move them out.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 0 insertions, 50 deletions

diff --git a/common/dlmalloc.c b/common/dlmalloc.c
index ff63fbec49..f9e1828cbf 100644
--- a/common/dlmalloc.c
+++ b/common/dlmalloc.c
@@ -882,56 +882,6 @@ static mbinptr av_[NAV * 2 + 2] = {
 
 /* ----------------------------------------------------------------------- */
 
-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong malloc_start;
-static ulong malloc_end;
-static ulong malloc_brk;
-
-ulong mem_malloc_start(void)
-{
-	return malloc_start;
-}
-
-ulong mem_malloc_end(void)
-{
-	return malloc_end;
-}
-
-void mem_malloc_init(void *start, void *end)
-{
-	malloc_start = (ulong)start;
-	malloc_end = (ulong)end;
-	malloc_brk = malloc_start;
-}
-
-static void *sbrk_no_zero(ptrdiff_t increment)
-{
-	ulong old = malloc_brk;
-	ulong new = old + increment;
-
-	if ((new < malloc_start) || (new > malloc_end))
-		return NULL;
-
-	malloc_brk = new;
-
-	return (void *)old;
-}
-
-static void *sbrk(ptrdiff_t increment)
-{
-	void *old = sbrk_no_zero(increment);
-
-	/* Only clear increment, if valid address was returned */
-	if (old != NULL)
-		memset(old, 0, increment);
-
-	return old;
-}
-
-/* ----------------------------------------------------------------------- */
-
 /*  Other static bookkeeping data */
 
 /* variables holding tunable values */