From: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Fri, 23 Jan 2009 15:02:20 +0000 (+0000)
Subject: linux-user: add qemu_realloc() implementation to unbreak the build (Gerd Hoffman)
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~12874
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1a6f0dbcc0fe79e7bbd35c6e995fec24d32968af;p=sdk%2Femulator%2Fqemu.git

linux-user: add qemu_realloc() implementation to unbreak the build (Gerd Hoffman)

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6412 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 8e81cde..d0fc3e3 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -123,6 +123,19 @@ void qemu_free(void *ptr)
     munmap(p, *p);
 }
 
+void *qemu_realloc(void *ptr, size_t size)
+{
+    size_t old_size, copy;
+    void *new_ptr;
+
+    old_size = *(size_t *)((char *)ptr - 16);
+    copy = old_size < size ? old_size : size;
+    new_ptr = qemu_malloc(size);
+    memcpy(new_ptr, ptr, copy);
+    qemu_free(ptr);
+    return new_ptr;
+}
+
 /* NOTE: all the constants are the HOST ones, but addresses are target. */
 int target_mprotect(abi_ulong start, abi_ulong len, int prot)
 {