From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/SLOF/clients/net-snk/libc/sbrk.c | 39 ++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 qemu/roms/SLOF/clients/net-snk/libc/sbrk.c (limited to 'qemu/roms/SLOF/clients/net-snk/libc/sbrk.c') diff --git a/qemu/roms/SLOF/clients/net-snk/libc/sbrk.c b/qemu/roms/SLOF/clients/net-snk/libc/sbrk.c new file mode 100644 index 000000000..2ec1b5f12 --- /dev/null +++ b/qemu/roms/SLOF/clients/net-snk/libc/sbrk.c @@ -0,0 +1,39 @@ +/****************************************************************************** + * Copyright (c) 2004, 2008 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *****************************************************************************/ + +#include + +#define HEAP_SIZE 0x200000 + + +static char heap[HEAP_SIZE]; +static char *actptr; + +void *sbrk(int increment) +{ + char *oldptr; + + /* Called for the first time? Then init the actual pointer */ + if (!actptr) { + actptr = heap; + } + + if (actptr + increment > heap + HEAP_SIZE) { + /* Out of memory */ + return (void *)-1; + } + + oldptr = actptr; + actptr += increment; + + return oldptr; +} -- cgit 1.2.3-korg