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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* libfdt - Flat Device Tree manipulation
* Testcase for fdt_nop_node()
* Copyright (C) 2006 David Gibson, IBM Corporation.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdint.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
#define SPACE 65536
static enum {
FIXED = 0,
RESIZE,
REALLOC,
NEWALLOC,
} alloc_mode;
static void realloc_fdt(void **fdt, size_t *size, bool created)
{
int err;
switch (alloc_mode) {
case FIXED:
if (!(*fdt))
*fdt = xmalloc(*size);
else
FAIL("Ran out of space");
return;
case RESIZE:
if (!(*fdt)) {
*fdt = xmalloc(SPACE);
} else if (*size < SPACE) {
*size += 1;
err = fdt_resize(*fdt, *fdt, *size);
if (err < 0)
FAIL("fdt_resize() failed: %s",
fdt_strerror(err));
} else {
FAIL("Ran out of space");
}
return;
case REALLOC:
*size += 1;
*fdt = xrealloc(*fdt, *size);
if (created) {
err = fdt_resize(*fdt, *fdt, *size);
if (err < 0)
FAIL("fdt_resize() failed: %s",
fdt_strerror(err));
}
return;
case NEWALLOC: {
void *buf;
*size += 1;
buf = xmalloc(*size);
if (created) {
err = fdt_resize(*fdt, buf, *size);
if (err < 0)
FAIL("fdt_resize() failed: %s",
fdt_strerror(err));
}
free(*fdt);
*fdt = buf;
return;
}
default:
CONFIG("Bad allocation mode");
}
}
#define CHECK(code) \
do { \
err = (code); \
if (err == -FDT_ERR_NOSPACE) \
realloc_fdt(&fdt, &size, created); \
else if (err) \
FAIL(#code ": %s", fdt_strerror(err)); \
} while (err != 0)
int main(int argc, char *argv[])
{
void *fdt = NULL;
size_t size;
int err;
bool created = false;
void *place;
const char place_str[] = "this is a placeholder string\0string2";
int place_len = sizeof(place_str);
int create_flags;
test_init(argc, argv);
alloc_mode = FIXED;
size = SPACE;
create_flags = 0;
if (argc == 2 || argc == 3) {
if (streq(argv[1], "fixed")) {
alloc_mode = FIXED;
size = SPACE;
} else if (streq(argv[1], "resize")) {
alloc_mode = REALLOC;
size = 0;
} else if (streq(argv[1], "realloc")) {
alloc_mode = REALLOC;
size = 0;
} else if (streq(argv[1], "newalloc")) {
alloc_mode = NEWALLOC;
size = 0;
} else {
char *endp;
size = strtoul(argv[1], &endp, 0);
if (*endp == '\0')
alloc_mode = FIXED;
else
CONFIG("Bad allocation mode \"%s\" specified",
argv[1]);
}
}
if (argc == 3) {
char *str = argv[2], *saveptr, *tok;
bool default_flag = false;
while ((tok = strtok_r(str, ",", &saveptr)) != NULL) {
str = NULL;
if (streq(tok, "default")) {
default_flag = true;
} else if (streq(tok, "no_name_dedup")) {
create_flags |= FDT_CREATE_FLAG_NO_NAME_DEDUP;
} else if (streq(tok, "bad")) {
create_flags |= 0xffffffff;
} else {
CONFIG("Bad creation flags \"%s\" specified",
argv[2]);
}
}
if (default_flag && create_flags != 0)
CONFIG("Bad creation flags \"%s\" specified",
argv[2]);
}
if (argc > 3) {
CONFIG("sw_tree1 [<allocation mode>] [<create flags>]");
}
fdt = xmalloc(size);
CHECK(fdt_create_with_flags(fdt, size, create_flags));
created = true;
CHECK(fdt_add_reservemap_entry(fdt, TEST_ADDR_1, TEST_SIZE_1));
CHECK(fdt_add_reservemap_entry(fdt, TEST_ADDR_2, TEST_SIZE_2));
CHECK(fdt_finish_reservemap(fdt));
CHECK(fdt_begin_node(fdt, ""));
CHECK(fdt_property_string(fdt, "compatible", "test_tree1"));
CHECK(fdt_property_u32(fdt, "prop-int", TEST_VALUE_1));
CHECK(fdt_property_u64(fdt, "prop-int64", TEST_VALUE64_1));
CHECK(fdt_property_string(fdt, "prop-str", TEST_STRING_1));
CHECK(fdt_property_u32(fdt, "#address-cells", 1));
CHECK(fdt_property_u32(fdt, "#size-cells", 0));
CHECK(fdt_begin_node(fdt, "subnode@1"));
CHECK(fdt_property_string(fdt, "compatible", "subnode1"));
CHECK(fdt_property_u32(fdt, "reg", 1));
CHECK(fdt_property_cell(fdt, "prop-int", TEST_VALUE_1));
CHECK(fdt_begin_node(fdt, "subsubnode"));
CHECK(fdt_property(fdt, "compatible", "subsubnode1\0subsubnode",
23));
CHECK(fdt_property_placeholder(fdt, "placeholder", place_len, &place));
memcpy(place, place_str, place_len);
CHECK(fdt_property_cell(fdt, "prop-int", TEST_VALUE_1));
CHECK(fdt_end_node(fdt));
CHECK(fdt_begin_node(fdt, "ss1"));
CHECK(fdt_end_node(fdt));
CHECK(fdt_end_node(fdt));
CHECK(fdt_begin_node(fdt, "subnode@2"));
CHECK(fdt_property_u32(fdt, "reg", 2));
CHECK(fdt_property_cell(fdt, "linux,phandle", PHANDLE_1));
CHECK(fdt_property_cell(fdt, "prop-int", TEST_VALUE_2));
CHECK(fdt_property_u32(fdt, "#address-cells", 1));
CHECK(fdt_property_u32(fdt, "#size-cells", 0));
CHECK(fdt_begin_node(fdt, "subsubnode@0"));
CHECK(fdt_property_u32(fdt, "reg", 0));
CHECK(fdt_property_cell(fdt, "phandle", PHANDLE_2));
CHECK(fdt_property(fdt, "compatible", "subsubnode2\0subsubnode",
23));
CHECK(fdt_property_cell(fdt, "prop-int", TEST_VALUE_2));
CHECK(fdt_end_node(fdt));
CHECK(fdt_begin_node(fdt, "ss2"));
CHECK(fdt_end_node(fdt));
CHECK(fdt_end_node(fdt));
CHECK(fdt_end_node(fdt));
save_blob("unfinished_tree1.test.dtb", fdt);
CHECK(fdt_finish(fdt));
verbose_printf("Completed tree, totalsize = %d\n",
fdt_totalsize(fdt));
save_blob("sw_tree1.test.dtb", fdt);
PASS();
}
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