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// SPDX-License-Identifier: GPL-2.0-only
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <common.h>
#include <bselftest.h>
#include <malloc.h>
#include <memory.h>
#include <linux/sizes.h>
BSELFTEST_GLOBALS();
static void __expect(bool cond, bool expect,
const char *condstr, const char *func, int line)
{
total_tests++;
if (cond != expect) {
failed_tests++;
printf("%s:%d: %s to %s\n", func, line,
expect ? "failed" : "unexpectedly succeeded",
condstr);
}
}
#define expect_alloc_ok(cond) \
__expect((cond), true, #cond, __func__, __LINE__)
#define expect_alloc_fail(cond) \
__expect((cond), false, #cond, __func__, __LINE__)
static void test_malloc(void)
{
size_t mem_malloc_size = mem_malloc_end() - mem_malloc_start();
u8 *p, *tmp;
pr_debug("mem_malloc_size = %zu\n", mem_malloc_size);
/* System libc when built for sandbox may have overcommit, so
* doing very big allocations without actual use may succeed
* unlike in-barebox allocators, so skip these tests in that
* case
*/
if (IS_ENABLED(CONFIG_MALLOC_LIBC)) {
pr_info("built with host libc allocator: Skipping tests that may trigger overcommit\n");
mem_malloc_size = 0;
}
expect_alloc_ok(p = malloc(1));
free(p);
if (mem_malloc_size) {
expect_alloc_fail(malloc(SIZE_MAX));
if (0xf0000000 > mem_malloc_size) {
expect_alloc_fail((tmp = malloc(0xf0000000)));
free(tmp);
}
} else {
skipped_tests += 2;
}
p = realloc(NULL, 1);
expect_alloc_ok(p = realloc(NULL, 1));
*p = 0x42;
expect_alloc_ok(tmp = realloc(p, 2));
p = tmp;
__expect(*p == 0x42, true, "reread after realloc", __func__, __LINE__);
if (mem_malloc_size) {
expect_alloc_fail(tmp = realloc(p, mem_malloc_size));
if (0xf0000000 > mem_malloc_size)
expect_alloc_fail((tmp = realloc(p, 0xf0000000)));
expect_alloc_fail(tmp = realloc(p, SIZE_MAX));
} else {
skipped_tests += 3;
}
free(p);
expect_alloc_ok(p = malloc(0));
expect_alloc_ok(tmp = malloc(0));
__expect(p != tmp, true, "allocate distinct 0-size buffers", __func__, __LINE__);
}
bselftest(core, test_malloc);
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