diff options
author | 2015-08-28 09:58:54 +0800 | |
---|---|---|
committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/arch/amd64/lib.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/arch/amd64/lib.c')
-rw-r--r-- | qemu/roms/openbios/arch/amd64/lib.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/qemu/roms/openbios/arch/amd64/lib.c b/qemu/roms/openbios/arch/amd64/lib.c new file mode 100644 index 000000000..f04458e1a --- /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 */ +} |