Merge remote-tracking branch cros/main into firmware-fpmcu-bloonchipper-releasefirmware-fpmcu-bloonchipper-release

Generated by: ./util/update_release_branch.py --board bloonchipper
--relevant_paths_file ./util/fingerprint-relevant-paths.txt firmware-
fpmcu-bloonchipper-release

Relevant changes:

git log --oneline e5fb0b9ba4..28712dae9d -- board/hatch_fp
board/bloonchipper common/fpsensor docs/fingerprint driver/fingerprint
util/getversion.sh

ded9307b79 util/getversion.sh: Fix version when not in a git repo
956055e692 board: change Google USB vendor info
71b2ef709d Update license boilerplate text in source code files
33e11afda0 Revert "fpsensor: Build fpsensor source file with C++"
c8d0360723 fpsensor: Build fpsensor source file with C++
bc113abd53 fpsensor: Fix g++ compiler error
150a58a0dc fpsensor: Fix fp_set_sensor_mode return type
b33b5ce85b fpsensor: Remove nested designators for C++ compatibility
2e864b2539 tree-wide: const-ify argv for console commands
56d8b360f9 test: Add test for get ikm failure when seed not set
3a3d6c3690 test: Add test for fpsensor trivial key failure
233e6bbd08 fpsensor_crypto: Abstract calls to hmac_SHA256
0a041b285b docs/fingerprint: Typo correction
c03fab67e2 docs/fingerprint: Fix the path of fputils.py
0b5d4baf5a util/getversion.sh: Fix empty file list handling
6e128fe760 FPMCU dev board environment with Satlab
3eb29b6aa5 builtin: Move ssize_t to sys/types.h
345d62ebd1 docs/fingerprint: Update power numbers for latest dartmonkey release
c25ffdb316 common: Conditionally support printf %l and %i modifiers
9a3c514b45 test: Add a test to check if the debugger is connected
54e603413f Move standard library tests to their own file
43fa6b4bf8 docs/fingerprint: Update power numbers for latest bloonchipper release
25536f9a84 driver/fingerprint/fpc/bep/fpc_sensor_spi.c: Format with clang-format
4face99efd driver/fingerprint/fpc/libfp/fpc_sensor_pal.h: Format with clang-format
738de2b575 trng: Rename rand to trng_rand
14b8270edd docs/fingerprint: Update dragonclaw power numbers
0b268f93d1 driver/fingerprint/fpc/libfp/fpc_private.c: Format with clang-format
f80da163f2 driver/fingerprint/fpc/libfp/fpc_private.h: Format with clang-format
5e9c85c9b1 driver/fingerprint/fpc/libfp/fpc_sensor_pal.c: Format with clang-format
c1f9dd3cf8 driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h: Format with clang-format
eb1e1bed8d driver/fingerprint/fpc/libfp/fpc1145_private.h: Format with clang-format
6e7b611821 driver/fingerprint/fpc/bep/fpc_bio_algorithm.h: Format with clang-format
e0589cd5e2 driver/fingerprint/fpc/bep/fpc1035_private.h: Format with clang-format
7905e556a0 common/fpsensor/fpsensor_crypto.c: Format with clang-format
21289d170c driver/fingerprint/fpc/bep/fpc1025_private.h: Format with clang-format
98a20f937e common/fpsensor/fpsensor_state.c: Format with clang-format
a2d255d8af common/fpsensor/fpsensor.c: Format with clang-format
73055eeb3f driver/fingerprint/fpc/bep/fpc_private.c: Format with clang-format
0f7b5cb509 common/fpsensor/fpsensor_private.h: Format with clang-format
1ceade6e65 driver/fingerprint/fpc/bep/fpc_private.h: Format with clang-format
dc3e9008b8 board/hatch_fp/board.h: Format with clang-format
dca9d74321 Revert "trng: Rename rand to trng_rand"
a6b0b3554f trng: Rename rand to trng_rand
28d0b75b70 third_party/boringssl: Remove unused header

BRANCH=None
BUG=b:246424843 b:234181908 b:244781166 b:234181908 b:244387210
BUG=b:242720240 chromium:1098010 b:180945056 b:236025198 b:234181908
BUG=b:234181908 b:237344361 b:131913998 b:236386294 b:234143158
BUG=b:234781655 b:215613183 b:242720910
TEST=`make -j buildall`
TEST=./test/run_device_tests.py --board bloonchipper
     Test "aes": PASSED
     Test "cec": PASSED
     Test "cortexm_fpu": PASSED
     Test "crc": PASSED
     Test "flash_physical": PASSED
     Test "flash_write_protect": PASSED
     Test "fpsensor_hw": PASSED
     Test "fpsensor_spi_ro": PASSED
     Test "fpsensor_spi_rw": PASSED
     Test "fpsensor_uart_ro": PASSED
     Test "fpsensor_uart_rw": PASSED
     Test "mpu_ro": PASSED
     Test "mpu_rw": PASSED
     Test "mutex": PASSED
     Test "pingpong": PASSED
     Test "printf": PASSED
     Test "queue": PASSED
     Test "rollback_region0": PASSED
     Test "rollback_region1": PASSED
     Test "rollback_entropy": PASSED
     Test "rtc": PASSED
     Test "sha256": PASSED
     Test "sha256_unrolled": PASSED
     Test "static_if": PASSED
     Test "stdlib": PASSED
     Test "system_is_locked_wp_on": PASSED
     Test "system_is_locked_wp_off": PASSED
     Test "timer_dos": PASSED
     Test "utils": PASSED
     Test "utils_str": PASSED
     Test "stm32f_rtc": PASSED
     Test "panic_data_bloonchipper_v2.0.4277": PASSED
     Test "panic_data_bloonchipper_v2.0.5938": PASSED

Force-Relevant-Builds: all
Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Change-Id: I264ad0ffe7afcd507a1e483c6e934a9c4fea47c3

1 files changed, 520 insertions, 0 deletions

diff --git a/test/stdlib.c b/test/stdlib.c
new file mode 100644
index 0000000000..efff64829d
--- /dev/null
+++ b/test/stdlib.c
@@ -0,0 +1,520 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Test standard library functions.
+ */
+
+#include "common.h"
+#include "console.h"
+#include "system.h"
+#include "printf.h"
+#include "shared_mem.h"
+#include "test_util.h"
+#include "timer.h"
+#include "util.h"
+
+#ifdef USE_BUILTIN_STDLIB
+static const bool use_builtin_stdlib = true;
+#else
+static const bool use_builtin_stdlib = false;
+#endif
+
+static int test_isalpha(void)
+{
+	TEST_ASSERT(isalpha('a'));
+	TEST_ASSERT(isalpha('z'));
+	TEST_ASSERT(isalpha('A'));
+	TEST_ASSERT(isalpha('Z'));
+	TEST_ASSERT(!isalpha('0'));
+	TEST_ASSERT(!isalpha('~'));
+	TEST_ASSERT(!isalpha(' '));
+	TEST_ASSERT(!isalpha('\0'));
+	TEST_ASSERT(!isalpha('\n'));
+	return EC_SUCCESS;
+}
+
+static int test_isprint(void)
+{
+	TEST_ASSERT(isprint('a'));
+	TEST_ASSERT(isprint('z'));
+	TEST_ASSERT(isprint('A'));
+	TEST_ASSERT(isprint('Z'));
+	TEST_ASSERT(isprint('0'));
+	TEST_ASSERT(isprint('~'));
+	TEST_ASSERT(isprint(' '));
+	TEST_ASSERT(!isprint('\0'));
+	TEST_ASSERT(!isprint('\n'));
+	return EC_SUCCESS;
+}
+
+static int test_strstr(void)
+{
+	const char s1[] = "abcde";
+
+	TEST_ASSERT(strstr(s1, "ab") == s1);
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strstr(s1, "") == NULL);
+	} else {
+		/*
+		 * From the man page: If needle is the empty string, the return
+		 * value is always haystack itself.
+		 */
+		TEST_ASSERT(strstr(s1, "") == s1);
+	}
+	TEST_ASSERT(strstr("", "ab") == NULL);
+	TEST_ASSERT(strstr("", "x") == NULL);
+	TEST_ASSERT(strstr(s1, "de") == &s1[3]);
+	TEST_ASSERT(strstr(s1, "def") == NULL);
+
+	return EC_SUCCESS;
+}
+
+static int test_strtoull(void)
+{
+	char *e;
+
+	TEST_ASSERT(strtoull("10", &e, 0) == 10);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("010", &e, 0) == 8);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("+010", &e, 0) == 8);
+	TEST_ASSERT(e && (*e == '\0'));
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("-010", &e, 0) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		/*
+		 * From the man page: The strtoull() function returns either
+		 * the result of the conversion or, if there was a leading
+		 * minus sign, the negation of the result of the conversion
+		 * represented as an unsigned value, unless the original
+		 * (nonnegated) value would overflow
+		 */
+		TEST_ASSERT(strtoull("-010", &e, 0) == 0xFFFFFFFFFFFFFFF8);
+	}
+
+	TEST_ASSERT(strtoull("0x1f z", &e, 0) == 31);
+	TEST_ASSERT(e && (*e == ' '));
+	TEST_ASSERT(strtoull("0X1f z", &e, 0) == 31);
+	TEST_ASSERT(e && (*e == ' '));
+	TEST_ASSERT(strtoull("10a", &e, 16) == 266);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("0x02C", &e, 16) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("+0x02C", &e, 16) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("-0x02C", &e, 16) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		TEST_ASSERT(strtoull("-0x02C", &e, 16) == 0xFFFFFFFFFFFFFFD4);
+	}
+
+	TEST_ASSERT(strtoull("0x02C", &e, 0) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("+0x02C", &e, 0) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("-0x02C", &e, 0) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		TEST_ASSERT(strtoull("-0x02C", &e, 0) == 0xFFFFFFFFFFFFFFD4);
+	}
+
+	TEST_ASSERT(strtoull("0X02C", &e, 16) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("+0X02C", &e, 16) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("-0X02C", &e, 16) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		TEST_ASSERT(strtoull("-0X02C", &e, 16) == 0xFFFFFFFFFFFFFFD4);
+	}
+
+	TEST_ASSERT(strtoull("0X02C", &e, 0) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+	TEST_ASSERT(strtoull("+0X02C", &e, 0) == 44);
+	TEST_ASSERT(e && (*e == '\0'));
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("-0X02C", &e, 0) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		TEST_ASSERT(strtoull("-0X02C", &e, 0) == 0xFFFFFFFFFFFFFFD4);
+	}
+
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(strtoull("   -12", &e, 0) == 0);
+		TEST_ASSERT(e && (*e == '-'));
+	} else {
+		TEST_ASSERT(strtoull("   -12", &e, 0) == 0xFFFFFFFFFFFFFFF4);
+	}
+
+	TEST_ASSERT(strtoull("!", &e, 0) == 0);
+	TEST_ASSERT(e && (*e == '!'));
+
+	TEST_ASSERT(strtoull("+!", &e, 0) == 0);
+	if (use_builtin_stdlib) {
+		/*
+		 * TODO(http://b/243192369): This is incorrect and should be
+		 * fixed.
+		 */
+		TEST_ASSERT(e && (*e == '!'));
+	} else {
+		TEST_ASSERT(e && (*e == '+'));
+	}
+
+	TEST_ASSERT(strtoull("+0!", &e, 0) == 0);
+	TEST_ASSERT(e && (*e == '!'));
+
+	TEST_ASSERT(strtoull("+0x!", &e, 0) == 0);
+	if (use_builtin_stdlib) {
+		TEST_ASSERT(e && (*e == '!'));
+	} else {
+		if (IS_ENABLED(EMU_BUILD))
+			TEST_ASSERT(e && (*e == 'x'));
+		else
+			TEST_ASSERT(e && (*e == '+'));
+	}
+
+	TEST_ASSERT(strtoull("+0X!", &e, 0) == 0);
+	if (use_builtin_stdlib) {
+		TEST_ASSERT(e && (*e == '!'));
+	} else {
+		if (IS_ENABLED(EMU_BUILD))
+			TEST_ASSERT(e && (*e == 'X'));
+		else
+			TEST_ASSERT(e && (*e == '+'));
+	}
+
+	return EC_SUCCESS;
+}
+
+static int test_strncpy(void)
+{
+	char dest[10];
+
+	strncpy(dest, "test", 10);
+	TEST_ASSERT_ARRAY_EQ("test", dest, 5);
+	strncpy(dest, "12345", 6);
+	TEST_ASSERT_ARRAY_EQ("12345", dest, 6);
+	/*
+	 * gcc complains:
+	 * error: ‘__builtin_strncpy’ output truncated copying 10 bytes from a
+	 * string of length 12 [-Werror=stringop-truncation]
+	 */
+#pragma GCC diagnostic push
+#if defined(__GNUC__) && __GNUC__ >= 8
+#pragma GCC diagnostic ignored "-Wstringop-truncation"
+#endif
+	strncpy(dest, "testtesttest", 10);
+#pragma GCC diagnostic pop
+	TEST_ASSERT_ARRAY_EQ("testtestte", dest, 10);
+
+	return EC_SUCCESS;
+}
+
+static int test_strncmp(void)
+{
+	TEST_ASSERT(strncmp("123", "123", 8) == 0);
+	TEST_ASSERT(strncmp("789", "456", 8) > 0);
+	TEST_ASSERT(strncmp("abc", "abd", 4) < 0);
+	TEST_ASSERT(strncmp("abc", "abd", 2) == 0);
+	return EC_SUCCESS;
+}
+
+static int test_strlen(void)
+{
+	TEST_ASSERT(strlen("this is a string") == 16);
+	return EC_SUCCESS;
+}
+
+static int test_strnlen(void)
+{
+	TEST_ASSERT(strnlen("this is a string", 17) == 16);
+	TEST_ASSERT(strnlen("this is a string", 16) == 16);
+	TEST_ASSERT(strnlen("this is a string", 5) == 5);
+
+	return EC_SUCCESS;
+}
+
+static int test_strcasecmp(void)
+{
+	TEST_ASSERT(strcasecmp("test string", "TEST strIng") == 0);
+	TEST_ASSERT(strcasecmp("test123!@#", "TesT123!@#") == 0);
+	TEST_ASSERT(strcasecmp("lower", "UPPER") != 0);
+	return EC_SUCCESS;
+}
+
+static int test_strncasecmp(void)
+{
+	TEST_ASSERT(strncasecmp("test string", "TEST str", 4) == 0);
+	TEST_ASSERT(strncasecmp("test string", "TEST str", 8) == 0);
+	TEST_ASSERT(strncasecmp("test123!@#", "TesT321!@#", 5) != 0);
+	TEST_ASSERT(strncasecmp("test123!@#", "TesT321!@#", 4) == 0);
+	TEST_ASSERT(strncasecmp("1test123!@#", "1TesT321!@#", 5) == 0);
+	TEST_ASSERT(strncasecmp("1test123", "teststr", 0) == 0);
+	return EC_SUCCESS;
+}
+
+static int test_atoi(void)
+{
+	TEST_ASSERT(atoi("  901") == 901);
+	TEST_ASSERT(atoi("-12c") == -12);
+	TEST_ASSERT(atoi("   0  ") == 0);
+	TEST_ASSERT(atoi("\t111") == 111);
+	return EC_SUCCESS;
+}
+
+static int test_snprintf(void)
+{
+	char buffer[32];
+
+	TEST_ASSERT(snprintf(buffer, sizeof(buffer), "%u", 1234) == 4);
+	TEST_ASSERT(strncmp(buffer, "1234", sizeof(buffer)) == 0);
+	return EC_SUCCESS;
+}
+
+static int test_strcspn(void)
+{
+	const char str1[] = "abc";
+	const char str2[] = "This is a string\nwith newlines!";
+
+	TEST_EQ(strcspn(str1, "a"), (size_t)0, "%zu");
+	TEST_EQ(strcspn(str1, "b"), (size_t)1, "%zu");
+	TEST_EQ(strcspn(str1, "c"), (size_t)2, "%zu");
+	TEST_EQ(strcspn(str1, "ccc"), (size_t)2, "%zu");
+	TEST_EQ(strcspn(str1, "cba"), (size_t)0, "%zu");
+	TEST_EQ(strcspn(str1, "cb"), (size_t)1, "%zu");
+	TEST_EQ(strcspn(str1, "bc"), (size_t)1, "%zu");
+	TEST_EQ(strcspn(str1, "cbc"), (size_t)1, "%zu");
+	TEST_EQ(strcspn(str1, "z"), strlen(str1), "%zu");
+	TEST_EQ(strcspn(str1, "xyz"), strlen(str1), "%zu");
+	TEST_EQ(strcspn(str1, ""), strlen(str1), "%zu");
+
+	TEST_EQ(strcspn(str2, " "), (size_t)4, "%zu");
+	TEST_EQ(strcspn(str2, "\n"), (size_t)16, "%zu");
+	TEST_EQ(strcspn(str2, "\n "), (size_t)4, "%zu");
+	TEST_EQ(strcspn(str2, "!"), strlen(str2) - 1, "%zu");
+	TEST_EQ(strcspn(str2, "z"), strlen(str2), "%zu");
+	TEST_EQ(strcspn(str2, "z!"), strlen(str2) - 1, "%zu");
+
+	return EC_SUCCESS;
+}
+
+static int test_memmove(void)
+{
+	int i;
+	timestamp_t t0, t1, t2, t3;
+	char *buf;
+	const int buf_size = 1000;
+	const int len = 400;
+	const int iteration = 1000;
+
+	TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
+
+	for (i = 0; i < len; ++i)
+		buf[i] = i & 0x7f;
+	for (i = len; i < buf_size; ++i)
+		buf[i] = 0;
+
+	t0 = get_time();
+	for (i = 0; i < iteration; ++i)
+		memmove(buf + 101, buf, len); /* unaligned */
+	t1 = get_time();
+	TEST_ASSERT_ARRAY_EQ(buf + 101, buf, len);
+	ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
+
+	t2 = get_time();
+	for (i = 0; i < iteration; ++i)
+		memmove(buf + 100, buf, len); /* aligned */
+	t3 = get_time();
+	ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
+	TEST_ASSERT_ARRAY_EQ(buf + 100, buf, len);
+
+	if (!IS_ENABLED(EMU_BUILD) && use_builtin_stdlib)
+		TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
+
+	/* Test small moves */
+	memmove(buf + 1, buf, 1);
+	TEST_ASSERT_ARRAY_EQ(buf + 1, buf, 1);
+	memmove(buf + 5, buf, 4);
+	memmove(buf + 1, buf, 4);
+	TEST_ASSERT_ARRAY_EQ(buf + 1, buf + 5, 4);
+
+	shared_mem_release(buf);
+	return EC_SUCCESS;
+}
+
+static int test_memcpy(void)
+{
+	int i;
+	timestamp_t t0, t1, t2, t3;
+	char *buf;
+	const int buf_size = 1000;
+	const int len = 400;
+	const int dest_offset = 500;
+	const int iteration = 1000;
+
+	TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
+
+	for (i = 0; i < len; ++i)
+		buf[i] = i & 0x7f;
+	for (i = len; i < buf_size; ++i)
+		buf[i] = 0;
+
+	t0 = get_time();
+	for (i = 0; i < iteration; ++i)
+		memcpy(buf + dest_offset + 1, buf, len); /* unaligned */
+	t1 = get_time();
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, len);
+	ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
+
+	t2 = get_time();
+	for (i = 0; i < iteration; ++i)
+		memcpy(buf + dest_offset, buf, len); /* aligned */
+	t3 = get_time();
+	ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, len);
+
+	if (!IS_ENABLED(EMU_BUILD))
+		TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
+
+	memcpy(buf + dest_offset + 1, buf + 1, len - 1);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf + 1, len - 1);
+
+	/* Test small copies */
+	memcpy(buf + dest_offset, buf, 1);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, 1);
+	memcpy(buf + dest_offset, buf, 4);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset, buf, 4);
+	memcpy(buf + dest_offset + 1, buf, 1);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, 1);
+	memcpy(buf + dest_offset + 1, buf, 4);
+	TEST_ASSERT_ARRAY_EQ(buf + dest_offset + 1, buf, 4);
+
+	shared_mem_release(buf);
+	return EC_SUCCESS;
+}
+
+/* Plain memset, used as a reference to measure speed gain */
+static void *dumb_memset(void *dest, int c, int len)
+{
+	char *d = (char *)dest;
+	while (len > 0) {
+		*(d++) = c;
+		len--;
+	}
+	return dest;
+}
+
+static int test_memset(void)
+{
+	int i;
+	timestamp_t t0, t1, t2, t3;
+	char *buf;
+	const int buf_size = 1000;
+	const int len = 400;
+	const int iteration = 1000;
+
+	TEST_ASSERT(shared_mem_acquire(buf_size, &buf) == EC_SUCCESS);
+
+	t0 = get_time();
+	for (i = 0; i < iteration; ++i)
+		dumb_memset(buf, 1, len);
+	t1 = get_time();
+	TEST_ASSERT_MEMSET(buf, (char)1, len);
+	ccprintf(" (speed gain: %" PRId64 " ->", t1.val - t0.val);
+
+	t2 = get_time();
+	for (i = 0; i < iteration; ++i)
+		memset(buf, 1, len);
+	t3 = get_time();
+	TEST_ASSERT_MEMSET(buf, (char)1, len);
+	ccprintf(" %" PRId64 " us) ", t3.val - t2.val);
+
+	if (!IS_ENABLED(EMU_BUILD))
+		TEST_ASSERT((t1.val - t0.val) > (t3.val - t2.val));
+
+	memset(buf, 128, len);
+	TEST_ASSERT_MEMSET(buf, (char)128, len);
+
+	memset(buf, -2, len);
+	TEST_ASSERT_MEMSET(buf, (char)-2, len);
+
+	memset(buf + 1, 1, len - 2);
+	TEST_ASSERT_MEMSET(buf + 1, (char)1, len - 2);
+
+	shared_mem_release(buf);
+	return EC_SUCCESS;
+}
+
+static int test_memchr(void)
+{
+	char *buf = "1234";
+
+	TEST_ASSERT(memchr("123567890", '4', 8) == NULL);
+	TEST_ASSERT(memchr("123", '3', 2) == NULL);
+	TEST_ASSERT(memchr(buf, '3', 4) == buf + 2);
+	TEST_ASSERT(memchr(buf, '4', 4) == buf + 3);
+	return EC_SUCCESS;
+}
+
+void run_test(int argc, const char **argv)
+{
+	test_reset();
+
+	RUN_TEST(test_isalpha);
+	RUN_TEST(test_isprint);
+	RUN_TEST(test_strstr);
+	RUN_TEST(test_strtoull);
+	RUN_TEST(test_strncpy);
+	RUN_TEST(test_strncmp);
+	RUN_TEST(test_strlen);
+	RUN_TEST(test_strnlen);
+	RUN_TEST(test_strcasecmp);
+	RUN_TEST(test_strncasecmp);
+	RUN_TEST(test_atoi);
+	RUN_TEST(test_snprintf);
+	RUN_TEST(test_strcspn);
+	RUN_TEST(test_memmove);
+	RUN_TEST(test_memcpy);
+	RUN_TEST(test_memset);
+	RUN_TEST(test_memchr);
+
+	test_print_result();
+}