You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.8 KiB
105 lines
2.8 KiB
/* |
|
* libfdt - Flat Device Tree manipulation |
|
* Testcase/tool for rearranging blocks of a dtb |
|
* Copyright (C) 2006 David Gibson, IBM Corporation. |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public License |
|
* as published by the Free Software Foundation; either version 2.1 of |
|
* the License, or (at your option) any later version. |
|
* |
|
* This library is distributed in the hope that it will be useful, but |
|
* WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with this library; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include <stdlib.h> |
|
#include <stdio.h> |
|
#include <string.h> |
|
#include <limits.h> |
|
#include <stdint.h> |
|
|
|
#include <libfdt.h> |
|
|
|
#include "tests.h" |
|
#include "testdata.h" |
|
|
|
static int nopulate_struct(char *buf, const char *fdt) |
|
{ |
|
int offset, nextoffset = 0; |
|
uint32_t tag; |
|
char *p; |
|
|
|
p = buf; |
|
|
|
do { |
|
offset = nextoffset; |
|
tag = fdt_next_tag(fdt, offset, &nextoffset); |
|
|
|
memcpy(p, (const char *)fdt + fdt_off_dt_struct(fdt) + offset, |
|
nextoffset - offset); |
|
p += nextoffset - offset; |
|
|
|
*((uint32_t *)p) = cpu_to_fdt32(FDT_NOP); |
|
p += FDT_TAGSIZE; |
|
|
|
} while (tag != FDT_END); |
|
|
|
return p - buf; |
|
} |
|
|
|
int main(int argc, char *argv[]) |
|
{ |
|
char *fdt, *fdt2, *buf; |
|
int newsize, struct_start, struct_end_old, struct_end_new, delta; |
|
const char *inname; |
|
char outname[PATH_MAX]; |
|
|
|
test_init(argc, argv); |
|
if (argc != 2) |
|
CONFIG("Usage: %s <dtb file>", argv[0]); |
|
|
|
inname = argv[1]; |
|
fdt = load_blob(argv[1]); |
|
sprintf(outname, "noppy.%s", inname); |
|
|
|
if (fdt_version(fdt) < 17) |
|
FAIL("Can't deal with version <17"); |
|
|
|
buf = xmalloc(2 * fdt_size_dt_struct(fdt)); |
|
|
|
newsize = nopulate_struct(buf, fdt); |
|
|
|
verbose_printf("Nopulated structure block has new size %d\n", newsize); |
|
|
|
/* Replace old strcutre block with the new */ |
|
|
|
fdt2 = xmalloc(fdt_totalsize(fdt) + newsize); |
|
|
|
struct_start = fdt_off_dt_struct(fdt); |
|
delta = newsize - fdt_size_dt_struct(fdt); |
|
struct_end_old = struct_start + fdt_size_dt_struct(fdt); |
|
struct_end_new = struct_start + newsize; |
|
|
|
memcpy(fdt2, fdt, struct_start); |
|
memcpy(fdt2 + struct_start, buf, newsize); |
|
memcpy(fdt2 + struct_end_new, fdt + struct_end_old, |
|
fdt_totalsize(fdt) - struct_end_old); |
|
|
|
fdt_set_totalsize(fdt2, fdt_totalsize(fdt) + delta); |
|
fdt_set_size_dt_struct(fdt2, newsize); |
|
|
|
if (fdt_off_mem_rsvmap(fdt) > struct_start) |
|
fdt_set_off_mem_rsvmap(fdt2, fdt_off_mem_rsvmap(fdt) + delta); |
|
if (fdt_off_dt_strings(fdt) > struct_start) |
|
fdt_set_off_dt_strings(fdt2, fdt_off_dt_strings(fdt) + delta); |
|
|
|
save_blob(outname, fdt2); |
|
|
|
PASS(); |
|
}
|
|
|