mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
8c18311067
Add simple selftest validating byte swap built-ins and compile-time macros. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20200630152125.3631920-3-andriin@fb.com
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright (c) 2020 Facebook */
|
|
|
|
#include <test_progs.h>
|
|
#include "test_endian.skel.h"
|
|
|
|
static int duration;
|
|
|
|
#define IN16 0x1234
|
|
#define IN32 0x12345678U
|
|
#define IN64 0x123456789abcdef0ULL
|
|
|
|
#define OUT16 0x3412
|
|
#define OUT32 0x78563412U
|
|
#define OUT64 0xf0debc9a78563412ULL
|
|
|
|
void test_endian(void)
|
|
{
|
|
struct test_endian* skel;
|
|
struct test_endian__bss *bss;
|
|
int err;
|
|
|
|
skel = test_endian__open_and_load();
|
|
if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
|
|
return;
|
|
bss = skel->bss;
|
|
|
|
bss->in16 = IN16;
|
|
bss->in32 = IN32;
|
|
bss->in64 = IN64;
|
|
|
|
err = test_endian__attach(skel);
|
|
if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
|
|
goto cleanup;
|
|
|
|
usleep(1);
|
|
|
|
CHECK(bss->out16 != OUT16, "out16", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->out16, (__u64)OUT16);
|
|
CHECK(bss->out32 != OUT32, "out32", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->out32, (__u64)OUT32);
|
|
CHECK(bss->out64 != OUT64, "out16", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->out64, (__u64)OUT64);
|
|
|
|
CHECK(bss->const16 != OUT16, "const16", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->const16, (__u64)OUT16);
|
|
CHECK(bss->const32 != OUT32, "const32", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->const32, (__u64)OUT32);
|
|
CHECK(bss->const64 != OUT64, "const64", "got 0x%llx != exp 0x%llx\n",
|
|
(__u64)bss->const64, (__u64)OUT64);
|
|
cleanup:
|
|
test_endian__destroy(skel);
|
|
}
|