Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / openbios / arch / amd64 / lib.c

diff --git a/qemu/roms/openbios/arch/amd64/lib.c b/qemu/roms/openbios/arch/amd64/lib.c
new file mode 100644 (file)
index 0000000..f04458e
--- /dev/null
+++ b/qemu/roms/openbios/arch/amd64/lib.c
@@ -0,0 +1,56 @@
+/* lib.c
+ * tag: simple function library
+ *
+ * Copyright (C) 2003 Stefan Reinauer
+ *
+ * See the file "COPYING" for further information about
+ * the copyright and warranty status of this work.
+ */
+
+#include "config.h"
+#include "asm/types.h"
+#include <stdarg.h>
+#include "libc/stdlib.h"
+#include "libc/vsprintf.h"
+#include "kernel/kernel.h"
+
+/* Format a string and print it on the screen, just like the libc
+ * function printf.
+ */
+int printk( const char *fmt, ... )
+{
+        char *p, buf[512];
+       va_list args;
+       int i;
+
+       va_start(args, fmt);
+        i = vsnprintf(buf, sizeof(buf), fmt, args);
+       va_end(args);
+
+       for( p=buf; *p; p++ )
+               putchar(*p);
+       return i;
+}
+
+// dumb quick memory allocator until we get a decent thing here.
+
+#define MEMSIZE 128*1024
+static char memory[MEMSIZE];
+static void *memptr=memory;
+static int memsize=MEMSIZE;
+
+void *malloc(int size)
+{
+       void *ret=(void *)0;
+       if(memsize>=size) {
+               memsize-=size;
+               ret=memptr;
+               memptr+=size;
+       }
+       return ret;
+}
+
+void free(void *ptr)
+{
+       /* Nothing yet */
+}