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Diffstat (limited to 'tools/testing/selftests/nolibc/nolibc-test.c')
-rw-r--r--tools/testing/selftests/nolibc/nolibc-test.c216
1 files changed, 191 insertions, 25 deletions
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 6ba4f8275ac4..0e0e3b48a8c3 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -27,6 +27,7 @@
#include <sys/syscall.h>
#include <sys/sysmacros.h>
#include <sys/time.h>
+#include <sys/utsname.h>
#include <sys/wait.h>
#include <dirent.h>
#include <errno.h>
@@ -63,6 +64,14 @@ static const char *argv0;
/* will be used by constructor tests */
static int constructor_test_value;
+static const int is_nolibc =
+#ifdef NOLIBC
+ 1
+#else
+ 0
+#endif
+;
+
/* definition of a series of tests */
struct test {
const char *name; /* test name */
@@ -293,7 +302,10 @@ int expect_syszr(int expr, int llen)
{
int ret = 0;
- if (expr) {
+ if (errno == ENOSYS) {
+ llen += printf(" = ENOSYS");
+ result(llen, SKIPPED);
+ } else if (expr) {
ret = 1;
llen += printf(" = %d %s ", expr, errorname(errno));
result(llen, FAIL);
@@ -333,7 +345,10 @@ int expect_sysne(int expr, int llen, int val)
{
int ret = 0;
- if (expr == val) {
+ if (errno == ENOSYS) {
+ llen += printf(" = ENOSYS");
+ result(llen, SKIPPED);
+ } else if (expr == val) {
ret = 1;
llen += printf(" = %d %s ", expr, errorname(errno));
result(llen, FAIL);
@@ -358,7 +373,9 @@ int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen)
int _errno = errno;
llen += printf(" = %d %s ", expr, errorname(_errno));
- if (expr != expret || (_errno != experr1 && _errno != experr2)) {
+ if (errno == ENOSYS) {
+ result(llen, SKIPPED);
+ } else if (expr != expret || (_errno != experr1 && _errno != experr2)) {
ret = 1;
if (experr2 == 0)
llen += printf(" != (%d %s) ", expret, errorname(experr1));
@@ -533,7 +550,7 @@ int expect_strzr(const char *expr, int llen)
{
int ret = 0;
- llen += printf(" = <%s> ", expr);
+ llen += printf(" = <%s> ", expr ? expr : "(null)");
if (expr) {
ret = 1;
result(llen, FAIL);
@@ -552,7 +569,7 @@ int expect_strnz(const char *expr, int llen)
{
int ret = 0;
- llen += printf(" = <%s> ", expr);
+ llen += printf(" = <%s> ", expr ? expr : "(null)");
if (!expr) {
ret = 1;
result(llen, FAIL);
@@ -600,6 +617,70 @@ int expect_strne(const char *expr, int llen, const char *cmp)
return ret;
}
+#define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \
+ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp)
+{
+ llen += printf(" = %lu <%s> ", (unsigned long)expr, buf);
+ if (strcmp(buf, cmp) != 0) {
+ result(llen, FAIL);
+ return 1;
+ }
+ if (expr != val) {
+ result(llen, FAIL);
+ return 1;
+ }
+
+ result(llen, OK);
+ return 0;
+}
+
+#define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \
+ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0)
+
+static __attribute__((unused))
+int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno)
+{
+ char *endptr;
+ int actual_errno, actual_chars;
+ intmax_t r;
+
+ errno = 0;
+ if (func == strtol) {
+ r = strtol(input, &endptr, base);
+ } else if (func == strtoul) {
+ r = strtoul(input, &endptr, base);
+ } else {
+ result(llen, FAIL);
+ return 1;
+ }
+ actual_errno = errno;
+ actual_chars = endptr - input;
+
+ llen += printf(" %lld = %lld", (long long)expected, (long long)r);
+ if (r != expected) {
+ result(llen, FAIL);
+ return 1;
+ }
+ if (expected_chars == -1) {
+ if (*endptr != '\0') {
+ result(llen, FAIL);
+ return 1;
+ }
+ } else if (expected_chars != actual_chars) {
+ result(llen, FAIL);
+ return 1;
+ }
+ if (actual_errno != expected_errno) {
+ result(llen, FAIL);
+ return 1;
+ }
+
+ result(llen, OK);
+ return 0;
+}
/* declare tests based on line numbers. There must be exactly one test per line. */
#define CASE_TEST(name) \
@@ -613,9 +694,10 @@ static void constructor1(void)
}
__attribute__((constructor))
-static void constructor2(void)
+static void constructor2(int argc, char **argv, char **envp)
{
- constructor_test_value *= 2;
+ if (argc && argv && envp)
+ constructor_test_value *= 2;
}
int run_startup(int min, int max)
@@ -761,6 +843,45 @@ int test_stat_timestamps(void)
return 0;
}
+int test_uname(void)
+{
+ struct utsname buf;
+ char osrelease[sizeof(buf.release)];
+ ssize_t r;
+ int fd;
+
+ memset(&buf.domainname, 'P', sizeof(buf.domainname));
+
+ if (uname(&buf))
+ return 1;
+
+ if (strncmp("Linux", buf.sysname, sizeof(buf.sysname)))
+ return 1;
+
+ fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
+ if (fd == -1)
+ return 1;
+
+ r = read(fd, osrelease, sizeof(osrelease));
+ if (r == -1)
+ return 1;
+
+ close(fd);
+
+ if (osrelease[r - 1] == '\n')
+ r--;
+
+ /* Validate one of the later fields to ensure field sizes are correct */
+ if (strncmp(osrelease, buf.release, r))
+ return 1;
+
+ /* Ensure the field domainname is set, it is missing from struct old_utsname */
+ if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname))
+ return 1;
+
+ return 0;
+}
+
int test_mmap_munmap(void)
{
int ret, fd, i, page_size;
@@ -883,6 +1004,7 @@ int run_syscall(int min, int max)
int ret = 0;
void *p1, *p2;
int has_gettid = 1;
+ int has_brk;
/* <proc> indicates whether or not /proc is mounted */
proc = stat("/proc", &stat_buf) == 0;
@@ -895,6 +1017,9 @@ int run_syscall(int min, int max)
has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30);
#endif
+ /* on musl setting brk()/sbrk() always fails */
+ has_brk = brk(0) == 0;
+
for (test = min; test >= 0 && test <= max; test++) {
int llen = 0; /* line length */
@@ -910,9 +1035,9 @@ int run_syscall(int min, int max)
CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break;
- CASE_TEST(sbrk_0); EXPECT_PTRNE(1, sbrk(0), (void *)-1); break;
- CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(1, (p2 == (void *)-1) || p2 == p1); break;
- CASE_TEST(brk); EXPECT_SYSZR(1, brk(sbrk(0))); break;
+ CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break;
+ CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break;
+ CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break;
CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break;
CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break;
CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break;
@@ -966,6 +1091,8 @@ int run_syscall(int min, int max)
CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break;
CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break;
CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break;
+ CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break;
+ CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break;
CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break;
CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break;
CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break;
@@ -991,6 +1118,14 @@ int run_stdlib(int min, int max)
for (test = min; test >= 0 && test <= max; test++) {
int llen = 0; /* line length */
+ /* For functions that take a long buffer, like strlcat()
+ * Add some more chars after the \0, to test functions that overwrite the buffer set
+ * the \0 at the exact right position.
+ */
+ char buf[10] = "test123456";
+ buf[4] = '\0';
+
+
/* avoid leaving empty lines below, this will insert holes into
* test numbers.
*/
@@ -1007,6 +1142,17 @@ int run_stdlib(int min, int max)
CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break;
CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
+ CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break;
+ CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break;
+ CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break;
+ CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break;
+ CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break;
+ CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break;
+ CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break;
+ CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break;
+ CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break;
+ CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break;
+ CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break;
CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;
@@ -1057,6 +1203,26 @@ int run_stdlib(int min, int max)
CASE_TEST(limit_ptrdiff_min); EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL : (ptrdiff_t) 0x80000000); break;
CASE_TEST(limit_ptrdiff_max); EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL : (ptrdiff_t) 0x7fffffff); break;
CASE_TEST(limit_size_max); EXPECT_EQ(1, SIZE_MAX, sizeof(long) == 8 ? (size_t) 0xffffffffffffffffULL : (size_t) 0xffffffffU); break;
+ CASE_TEST(strtol_simple); EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break;
+ CASE_TEST(strtol_positive); EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break;
+ CASE_TEST(strtol_negative); EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break;
+ CASE_TEST(strtol_hex_auto); EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break;
+ CASE_TEST(strtol_base36); EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break;
+ CASE_TEST(strtol_cutoff); EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break;
+ CASE_TEST(strtol_octal_auto); EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break;
+ CASE_TEST(strtol_hex_00); EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break;
+ CASE_TEST(strtol_hex_FF); EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break;
+ CASE_TEST(strtol_hex_ff); EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break;
+ CASE_TEST(strtol_hex_prefix); EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break;
+ CASE_TEST(strtol_trailer); EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break;
+ CASE_TEST(strtol_overflow); EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break;
+ CASE_TEST(strtol_underflow); EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break;
+ CASE_TEST(strtoul_negative); EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break;
+ CASE_TEST(strtoul_overflow); EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break;
+ CASE_TEST(strerror_success); EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break;
+ CASE_TEST(strerror_EINVAL); EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break;
+ CASE_TEST(strerror_int_max); EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break;
+ CASE_TEST(strerror_int_min); EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break;
case __LINE__:
return ret; /* must be last */
@@ -1071,19 +1237,20 @@ int run_stdlib(int min, int max)
static int expect_vfprintf(int llen, int c, const char *expected, const char *fmt, ...)
{
- int ret, fd;
+ int ret, pipefd[2];
ssize_t w, r;
char buf[100];
FILE *memfile;
va_list args;
- fd = open("/tmp", O_TMPFILE | O_EXCL | O_RDWR, 0600);
- if (fd == -1) {
- result(llen, SKIPPED);
- return 0;
+ ret = pipe(pipefd);
+ if (ret == -1) {
+ llen += printf(" pipe() != %s", strerror(errno));
+ result(llen, FAIL);
+ return 1;
}
- memfile = fdopen(fd, "w+");
+ memfile = fdopen(pipefd[1], "w");
if (!memfile) {
result(llen, FAIL);
return 1;
@@ -1099,13 +1266,10 @@ static int expect_vfprintf(int llen, int c, const char *expected, const char *fm
return 1;
}
- fflush(memfile);
- lseek(fd, 0, SEEK_SET);
-
- r = read(fd, buf, sizeof(buf) - 1);
-
fclose(memfile);
+ r = read(pipefd[0], buf, sizeof(buf) - 1);
+
if (r != w) {
llen += printf(" written(%d) != read(%d)", (int)w, (int)r);
result(llen, FAIL);
@@ -1165,7 +1329,8 @@ static int run_protection(int min __attribute__((unused)),
int max __attribute__((unused)))
{
pid_t pid;
- int llen = 0, status;
+ int llen = 0, ret;
+ siginfo_t siginfo = {};
struct rlimit rlimit = { 0, 0 };
llen += printf("0 -fstackprotector ");
@@ -1203,10 +1368,11 @@ static int run_protection(int min __attribute__((unused)),
return 1;
default:
- pid = waitpid(pid, &status, 0);
+ ret = waitid(P_PID, pid, &siginfo, WEXITED);
- if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) {
- llen += printf("waitpid()");
+ if (ret != 0 || siginfo.si_signo != SIGCHLD ||
+ siginfo.si_code != CLD_KILLED || siginfo.si_status != SIGABRT) {
+ llen += printf("waitid()");
result(llen, FAIL);
return 1;
}
generated by cgit (git 2.34.1) at 2025-07-28 14:24:55 +0000