| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| #define _GNU_SOURCE |
| #define _LARGEFILE64_SOURCE |
| |
| /* libc-specific include files |
| * The program may be built in 3 ways: |
| * $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined |
| * $(CC) -nostdlib -I/path/to/nolibc/sysroot => _NOLIBC_* guards are present |
| * $(CC) with default libc => NOLIBC* never defined |
| */ |
| #ifndef NOLIBC |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #ifndef _NOLIBC_STDIO_H |
| /* standard libcs need more includes */ |
| #include <sys/auxv.h> |
| #include <sys/io.h> |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/prctl.h> |
| #include <sys/reboot.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/sysmacros.h> |
| #include <sys/time.h> |
| #include <sys/wait.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <poll.h> |
| #include <sched.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <unistd.h> |
| #include <limits.h> |
| #endif |
| #endif |
| |
| #include "nolibc-test-linkage.h" |
| |
| /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */ |
| #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2))) |
| #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1) |
| |
| /* will be used to test initialization of environ */ |
| static char **test_envp; |
| |
| /* will be used to test initialization of argv */ |
| static char **test_argv; |
| |
| /* will be used to test initialization of argc */ |
| static int test_argc; |
| |
| /* will be used by some test cases as readable file, please don't write it */ |
| static const char *argv0; |
| |
| /* will be used by constructor tests */ |
| static int constructor_test_value; |
| |
| /* definition of a series of tests */ |
| struct test { |
| const char *name; /* test name */ |
| int (*func)(int min, int max); /* handler */ |
| }; |
| |
| #ifndef _NOLIBC_STDLIB_H |
| char *itoa(int i) |
| { |
| static char buf[12]; |
| int ret; |
| |
| ret = snprintf(buf, sizeof(buf), "%d", i); |
| return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err"; |
| } |
| #endif |
| |
| #define CASE_ERR(err) \ |
| case err: return #err |
| |
| /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0, |
| * or the decimal value for less common ones. |
| */ |
| static const char *errorname(int err) |
| { |
| switch (err) { |
| case 0: return "SUCCESS"; |
| CASE_ERR(EPERM); |
| CASE_ERR(ENOENT); |
| CASE_ERR(ESRCH); |
| CASE_ERR(EINTR); |
| CASE_ERR(EIO); |
| CASE_ERR(ENXIO); |
| CASE_ERR(E2BIG); |
| CASE_ERR(ENOEXEC); |
| CASE_ERR(EBADF); |
| CASE_ERR(ECHILD); |
| CASE_ERR(EAGAIN); |
| CASE_ERR(ENOMEM); |
| CASE_ERR(EACCES); |
| CASE_ERR(EFAULT); |
| CASE_ERR(ENOTBLK); |
| CASE_ERR(EBUSY); |
| CASE_ERR(EEXIST); |
| CASE_ERR(EXDEV); |
| CASE_ERR(ENODEV); |
| CASE_ERR(ENOTDIR); |
| CASE_ERR(EISDIR); |
| CASE_ERR(EINVAL); |
| CASE_ERR(ENFILE); |
| CASE_ERR(EMFILE); |
| CASE_ERR(ENOTTY); |
| CASE_ERR(ETXTBSY); |
| CASE_ERR(EFBIG); |
| CASE_ERR(ENOSPC); |
| CASE_ERR(ESPIPE); |
| CASE_ERR(EROFS); |
| CASE_ERR(EMLINK); |
| CASE_ERR(EPIPE); |
| CASE_ERR(EDOM); |
| CASE_ERR(ERANGE); |
| CASE_ERR(ENOSYS); |
| CASE_ERR(EOVERFLOW); |
| default: |
| return itoa(err); |
| } |
| } |
| |
| static void putcharn(char c, size_t n) |
| { |
| char buf[64]; |
| |
| memset(buf, c, n); |
| buf[n] = '\0'; |
| fputs(buf, stdout); |
| } |
| |
| enum RESULT { |
| OK, |
| FAIL, |
| SKIPPED, |
| }; |
| |
| static void result(int llen, enum RESULT r) |
| { |
| const char *msg; |
| |
| if (r == OK) |
| msg = " [OK]"; |
| else if (r == SKIPPED) |
| msg = "[SKIPPED]"; |
| else |
| msg = "[FAIL]"; |
| |
| if (llen < 64) |
| putcharn(' ', 64 - llen); |
| puts(msg); |
| } |
| |
| /* The tests below are intended to be used by the macroes, which evaluate |
| * expression <expr>, print the status to stdout, and update the "ret" |
| * variable to count failures. The functions themselves return the number |
| * of failures, thus either 0 or 1. |
| */ |
| |
| #define EXPECT_ZR(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_zr(int expr, int llen) |
| { |
| int ret = !(expr == 0); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_NZ(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen; } while (0) |
| |
| static __attribute__((unused)) |
| int expect_nz(int expr, int llen) |
| { |
| int ret = !(expr != 0); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_EQ(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_eq(uint64_t expr, int llen, uint64_t val) |
| { |
| int ret = !(expr == val); |
| |
| llen += printf(" = %lld ", (long long)expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_NE(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ne(int expr, int llen, int val) |
| { |
| int ret = !(expr != val); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_GE(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ge(int expr, int llen, int val) |
| { |
| int ret = !(expr >= val); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_GT(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_gt(int expr, int llen, int val) |
| { |
| int ret = !(expr > val); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_LE(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_le(int expr, int llen, int val) |
| { |
| int ret = !(expr <= val); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_LT(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_lt(int expr, int llen, int val) |
| { |
| int ret = !(expr < val); |
| |
| llen += printf(" = %d ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_SYSZR(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_syszr(int expr, int llen) |
| { |
| int ret = 0; |
| |
| if (expr) { |
| ret = 1; |
| llen += printf(" = %d %s ", expr, errorname(errno)); |
| result(llen, FAIL); |
| } else { |
| llen += printf(" = %d ", expr); |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_SYSEQ(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_syseq(int expr, int llen, int val) |
| { |
| int ret = 0; |
| |
| if (expr != val) { |
| ret = 1; |
| llen += printf(" = %d %s ", expr, errorname(errno)); |
| result(llen, FAIL); |
| } else { |
| llen += printf(" = %d ", expr); |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_SYSNE(cond, expr, val) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_sysne(int expr, int llen, int val) |
| { |
| int ret = 0; |
| |
| if (expr == val) { |
| ret = 1; |
| llen += printf(" = %d %s ", expr, errorname(errno)); |
| result(llen, FAIL); |
| } else { |
| llen += printf(" = %d ", expr); |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_SYSER2(cond, expr, expret, experr1, experr2) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0) |
| |
| #define EXPECT_SYSER(cond, expr, expret, experr) \ |
| EXPECT_SYSER2(cond, expr, expret, experr, 0) |
| |
| static __attribute__((unused)) |
| int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen) |
| { |
| int ret = 0; |
| int _errno = errno; |
| |
| llen += printf(" = %d %s ", expr, errorname(_errno)); |
| if (expr != expret || (_errno != experr1 && _errno != experr2)) { |
| ret = 1; |
| if (experr2 == 0) |
| llen += printf(" != (%d %s) ", expret, errorname(experr1)); |
| else |
| llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2)); |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_PTRZR(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrzr(const void *expr, int llen) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%p> ", expr); |
| if (expr) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_PTRNZ(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrnz(const void *expr, int llen) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%p> ", expr); |
| if (!expr) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| #define EXPECT_PTREQ(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptreq(const void *expr, int llen, const void *cmp) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%p> ", expr); |
| if (expr != cmp) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| #define EXPECT_PTRNE(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrne(const void *expr, int llen, const void *cmp) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%p> ", expr); |
| if (expr == cmp) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| #define EXPECT_PTRGE(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrge(const void *expr, int llen, const void *cmp) |
| { |
| int ret = !(expr >= cmp); |
| |
| llen += printf(" = <%p> ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| #define EXPECT_PTRGT(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrgt(const void *expr, int llen, const void *cmp) |
| { |
| int ret = !(expr > cmp); |
| |
| llen += printf(" = <%p> ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_PTRLE(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrle(const void *expr, int llen, const void *cmp) |
| { |
| int ret = !(expr <= cmp); |
| |
| llen += printf(" = <%p> ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| |
| #define EXPECT_PTRLT(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_ptrlt(const void *expr, int llen, const void *cmp) |
| { |
| int ret = !(expr < cmp); |
| |
| llen += printf(" = <%p> ", expr); |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0) |
| |
| #define EXPECT_PTRER(cond, expr, expret, experr) \ |
| EXPECT_PTRER2(cond, expr, expret, experr, 0) |
| |
| static __attribute__((unused)) |
| int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen) |
| { |
| int ret = 0; |
| int _errno = errno; |
| |
| llen += printf(" = <%p> %s ", expr, errorname(_errno)); |
| if (expr != expret || (_errno != experr1 && _errno != experr2)) { |
| ret = 1; |
| if (experr2 == 0) |
| llen += printf(" != (<%p> %s) ", expret, errorname(experr1)); |
| else |
| llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2)); |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| #define EXPECT_STRZR(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_strzr(const char *expr, int llen) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%s> ", expr); |
| if (expr) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_STRNZ(cond, expr) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_strnz(const char *expr, int llen) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%s> ", expr); |
| if (!expr) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_STREQ(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_streq(const char *expr, int llen, const char *cmp) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%s> ", expr); |
| if (strcmp(expr, cmp) != 0) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| #define EXPECT_STRNE(cond, expr, cmp) \ |
| do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0) |
| |
| static __attribute__((unused)) |
| int expect_strne(const char *expr, int llen, const char *cmp) |
| { |
| int ret = 0; |
| |
| llen += printf(" = <%s> ", expr); |
| if (strcmp(expr, cmp) == 0) { |
| ret = 1; |
| result(llen, FAIL); |
| } else { |
| result(llen, OK); |
| } |
| return ret; |
| } |
| |
| |
| /* declare tests based on line numbers. There must be exactly one test per line. */ |
| #define CASE_TEST(name) \ |
| case __LINE__: llen += printf("%d %s", test, #name); |
| |
| /* constructors validate that they are executed in definition order */ |
| __attribute__((constructor)) |
| static void constructor1(void) |
| { |
| constructor_test_value = 1; |
| } |
| |
| __attribute__((constructor)) |
| static void constructor2(void) |
| { |
| constructor_test_value *= 2; |
| } |
| |
| int run_startup(int min, int max) |
| { |
| int test; |
| int ret = 0; |
| /* kernel at least passes HOME and TERM, shell passes more */ |
| int env_total = 2; |
| /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */ |
| extern char end; |
| char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end; |
| /* differ from nolibc, both glibc and musl have no global _auxv */ |
| const unsigned long *test_auxv = (void *)-1; |
| #ifdef NOLIBC |
| test_auxv = _auxv; |
| #endif |
| |
| for (test = min; test >= 0 && test <= max; test++) { |
| int llen = 0; /* line length */ |
| |
| /* avoid leaving empty lines below, this will insert holes into |
| * test numbers. |
| */ |
| switch (test + __LINE__ + 1) { |
| CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break; |
| CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break; |
| CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break; |
| CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break; |
| CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break; |
| CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break; |
| CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break; |
| CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break; |
| CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break; |
| CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break; |
| CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break; |
| CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break; |
| CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break; |
| CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break; |
| CASE_TEST(constructor); EXPECT_EQ(1, constructor_test_value, 2); break; |
| CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break; |
| CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 6); break; |
| case __LINE__: |
| return ret; /* must be last */ |
| /* note: do not set any defaults so as to permit holes above */ |
| } |
| } |
| return ret; |
| } |
| |
| |
| /* used by some syscall tests below */ |
| int test_getdents64(const char *dir) |
| { |
| char buffer[4096]; |
| int fd, ret; |
| int err; |
| |
| ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0); |
| if (ret < 0) |
| return ret; |
| |
| ret = getdents64(fd, (void *)buffer, sizeof(buffer)); |
| err = errno; |
| close(fd); |
| |
| errno = err; |
| return ret; |
| } |
| |
| int test_getpagesize(void) |
| { |
| int x = getpagesize(); |
| int c; |
| |
| if (x < 0) |
| return x; |
| |
| #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) |
| /* |
| * x86 family is always 4K page. |
| */ |
| c = (x == 4096); |
| #elif defined(__aarch64__) |
| /* |
| * Linux aarch64 supports three values of page size: 4K, 16K, and 64K |
| * which are selected at kernel compilation time. |
| */ |
| c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024)); |
| #else |
| /* |
| * Assuming other architectures must have at least 4K page. |
| */ |
| c = (x >= 4096); |
| #endif |
| |
| return !c; |
| } |
| |
| int test_fork(void) |
| { |
| int status; |
| pid_t pid; |
| |
| /* flush the printf buffer to avoid child flush it */ |
| fflush(stdout); |
| fflush(stderr); |
| |
| pid = fork(); |
| |
| switch (pid) { |
| case -1: |
| return 1; |
| |
| case 0: |
| exit(123); |
| |
| default: |
| pid = waitpid(pid, &status, 0); |
| |
| return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123; |
| } |
| } |
| |
| int test_stat_timestamps(void) |
| { |
| struct stat st; |
| |
| if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime)) |
| return 1; |
| |
| if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st)) |
| return 1; |
| |
| if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000) |
| return 1; |
| |
| if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000) |
| return 1; |
| |
| if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000) |
| return 1; |
| |
| return 0; |
| } |
| |
| int test_mmap_munmap(void) |
| { |
| int ret, fd, i, page_size; |
| void *mem; |
| size_t file_size, length; |
| off_t offset, pa_offset; |
| struct stat stat_buf; |
| const char * const files[] = { |
| "/dev/zero", |
| "/proc/1/exe", "/proc/self/exe", |
| argv0, |
| NULL |
| }; |
| |
| page_size = getpagesize(); |
| if (page_size < 0) |
| return 1; |
| |
| /* find a right file to mmap, existed and accessible */ |
| for (i = 0; files[i] != NULL; i++) { |
| ret = fd = open(files[i], O_RDONLY); |
| if (ret == -1) |
| continue; |
| else |
| break; |
| } |
| if (ret == -1) |
| return 1; |
| |
| ret = stat(files[i], &stat_buf); |
| if (ret == -1) |
| goto end; |
| |
| /* file size of the special /dev/zero is 0, let's assign one manually */ |
| if (i == 0) |
| file_size = 3*page_size; |
| else |
| file_size = stat_buf.st_size; |
| |
| offset = file_size - 1; |
| if (offset < 0) |
| offset = 0; |
| length = file_size - offset; |
| pa_offset = offset & ~(page_size - 1); |
| |
| mem = mmap(NULL, length + offset - pa_offset, PROT_READ, MAP_SHARED, fd, pa_offset); |
| if (mem == MAP_FAILED) { |
| ret = 1; |
| goto end; |
| } |
| |
| ret = munmap(mem, length + offset - pa_offset); |
| |
| end: |
| close(fd); |
| return !!ret; |
| } |
| |
| int test_pipe(void) |
| { |
| const char *const msg = "hello, nolibc"; |
| int pipefd[2]; |
| char buf[32]; |
| size_t len; |
| |
| if (pipe(pipefd) == -1) |
| return 1; |
| |
| write(pipefd[1], msg, strlen(msg)); |
| close(pipefd[1]); |
| len = read(pipefd[0], buf, sizeof(buf)); |
| close(pipefd[0]); |
| |
| if (len != strlen(msg)) |
| return 1; |
| |
| return !!memcmp(buf, msg, len); |
| } |
| |
| |
| /* Run syscall tests between IDs <min> and <max>. |
| * Return 0 on success, non-zero on failure. |
| */ |
| int run_syscall(int min, int max) |
| { |
| struct timeval tv; |
| struct timezone tz; |
| struct stat stat_buf; |
| int euid0; |
| int proc; |
| int test; |
| int tmp; |
| int ret = 0; |
| void *p1, *p2; |
| int has_gettid = 1; |
| |
| /* <proc> indicates whether or not /proc is mounted */ |
| proc = stat("/proc", &stat_buf) == 0; |
| |
| /* this will be used to skip certain tests that can't be run unprivileged */ |
| euid0 = geteuid() == 0; |
| |
| /* from 2.30, glibc provides gettid() */ |
| #if defined(__GLIBC_MINOR__) && defined(__GLIBC__) |
| has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); |
| #endif |
| |
| for (test = min; test >= 0 && test <= max; test++) { |
| int llen = 0; /* line length */ |
| |
| /* avoid leaving empty lines below, this will insert holes into |
| * test numbers. |
| */ |
| switch (test + __LINE__ + 1) { |
| CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; |
| CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; |
| CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; |
| CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; |
| CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; |
| 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(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; |
| CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break; |
| CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break; |
| CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break; |
| CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break; |
| CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break; |
| CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break; |
| CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break; |
| CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break; |
| CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; |
| CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; |
| CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; |
| CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; |
| CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; |
| CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; |
| CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break; |
| CASE_TEST(fork); EXPECT_SYSZR(1, test_fork()); break; |
| CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break; |
| CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break; |
| CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break; |
| CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break; |
| CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break; |
| CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; |
| CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; |
| CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break; |
| CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break; |
| CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break; |
| CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break; |
| CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; |
| CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; |
| CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; |
| CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; |
| CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break; |
| CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; |
| CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break; |
| CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); break; |
| CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break; |
| CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break; |
| CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break; |
| CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break; |
| CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break; |
| CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break; |
| CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break; |
| CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break; |
| CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break; |
| CASE_TEST(select_stdout); EXPECT_SYSNE(1, ({ fd_set fds; FD_ZERO(&fds); FD_SET(1, &fds); select(2, NULL, &fds, NULL, NULL); }), -1); break; |
| CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break; |
| CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break; |
| 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(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; |
| CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break; |
| CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; |
| CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; |
| CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; |
| CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; |
| CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break; |
| case __LINE__: |
| return ret; /* must be last */ |
| /* note: do not set any defaults so as to permit holes above */ |
| } |
| } |
| return ret; |
| } |
| |
| int run_stdlib(int min, int max) |
| { |
| int test; |
| int ret = 0; |
| |
| for (test = min; test >= 0 && test <= max; test++) { |
| int llen = 0; /* line length */ |
| |
| /* avoid leaving empty lines below, this will insert holes into |
| * test numbers. |
| */ |
| switch (test + __LINE__ + 1) { |
| CASE_TEST(getenv_TERM); EXPECT_STRNZ(1, getenv("TERM")); break; |
| CASE_TEST(getenv_blah); EXPECT_STRZR(1, getenv("blah")); break; |
| CASE_TEST(setcmp_blah_blah); EXPECT_EQ(1, strcmp("blah", "blah"), 0); break; |
| CASE_TEST(setcmp_blah_blah2); EXPECT_NE(1, strcmp("blah", "blah2"), 0); break; |
| CASE_TEST(setncmp_blah_blah); EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break; |
| CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break; |
| CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break; |
| CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break; |
| CASE_TEST(strchr_foobar_o); EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break; |
| 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(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; |
| CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break; |
| CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break; |
| CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break; |
| CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break; |
| CASE_TEST(limit_int8_max); EXPECT_EQ(1, INT8_MAX, (int8_t) 0x7f); break; |
| CASE_TEST(limit_int8_min); EXPECT_EQ(1, INT8_MIN, (int8_t) 0x80); break; |
| CASE_TEST(limit_uint8_max); EXPECT_EQ(1, UINT8_MAX, (uint8_t) 0xff); break; |
| CASE_TEST(limit_int16_max); EXPECT_EQ(1, INT16_MAX, (int16_t) 0x7fff); break; |
| CASE_TEST(limit_int16_min); EXPECT_EQ(1, INT16_MIN, (int16_t) 0x8000); break; |
| CASE_TEST(limit_uint16_max); EXPECT_EQ(1, UINT16_MAX, (uint16_t) 0xffff); break; |
| CASE_TEST(limit_int32_max); EXPECT_EQ(1, INT32_MAX, (int32_t) 0x7fffffff); break; |
| CASE_TEST(limit_int32_min); EXPECT_EQ(1, INT32_MIN, (int32_t) 0x80000000); break; |
| CASE_TEST(limit_uint32_max); EXPECT_EQ(1, UINT32_MAX, (uint32_t) 0xffffffff); break; |
| CASE_TEST(limit_int64_max); EXPECT_EQ(1, INT64_MAX, (int64_t) 0x7fffffffffffffff); break; |
| CASE_TEST(limit_int64_min); EXPECT_EQ(1, INT64_MIN, (int64_t) 0x8000000000000000); break; |
| CASE_TEST(limit_uint64_max); EXPECT_EQ(1, UINT64_MAX, (uint64_t) 0xffffffffffffffff); break; |
| CASE_TEST(limit_int_least8_max); EXPECT_EQ(1, INT_LEAST8_MAX, (int_least8_t) 0x7f); break; |
| CASE_TEST(limit_int_least8_min); EXPECT_EQ(1, INT_LEAST8_MIN, (int_least8_t) 0x80); break; |
| CASE_TEST(limit_uint_least8_max); EXPECT_EQ(1, UINT_LEAST8_MAX, (uint_least8_t) 0xff); break; |
| CASE_TEST(limit_int_least16_max); EXPECT_EQ(1, INT_LEAST16_MAX, (int_least16_t) 0x7fff); break; |
| CASE_TEST(limit_int_least16_min); EXPECT_EQ(1, INT_LEAST16_MIN, (int_least16_t) 0x8000); break; |
| CASE_TEST(limit_uint_least16_max); EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t) 0xffff); break; |
| CASE_TEST(limit_int_least32_max); EXPECT_EQ(1, INT_LEAST32_MAX, (int_least32_t) 0x7fffffff); break; |
| CASE_TEST(limit_int_least32_min); EXPECT_EQ(1, INT_LEAST32_MIN, (int_least32_t) 0x80000000); break; |
| CASE_TEST(limit_uint_least32_max); EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t) 0xffffffffU); break; |
| CASE_TEST(limit_int_least64_min); EXPECT_EQ(1, INT_LEAST64_MIN, (int_least64_t) 0x8000000000000000LL); break; |
| CASE_TEST(limit_int_least64_max); EXPECT_EQ(1, INT_LEAST64_MAX, (int_least64_t) 0x7fffffffffffffffLL); break; |
| CASE_TEST(limit_uint_least64_max); EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t) 0xffffffffffffffffULL); break; |
| CASE_TEST(limit_int_fast8_max); EXPECT_EQ(1, INT_FAST8_MAX, (int_fast8_t) 0x7f); break; |
| CASE_TEST(limit_int_fast8_min); EXPECT_EQ(1, INT_FAST8_MIN, (int_fast8_t) 0x80); break; |
| CASE_TEST(limit_uint_fast8_max); EXPECT_EQ(1, UINT_FAST8_MAX, (uint_fast8_t) 0xff); break; |
| CASE_TEST(limit_int_fast16_min); EXPECT_EQ(1, INT_FAST16_MIN, (int_fast16_t) SINT_MIN_OF_TYPE(int_fast16_t)); break; |
| CASE_TEST(limit_int_fast16_max); EXPECT_EQ(1, INT_FAST16_MAX, (int_fast16_t) SINT_MAX_OF_TYPE(int_fast16_t)); break; |
| CASE_TEST(limit_uint_fast16_max); EXPECT_EQ(1, UINT_FAST16_MAX, (uint_fast16_t) UINTPTR_MAX); break; |
| CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) SINT_MIN_OF_TYPE(int_fast32_t)); break; |
| CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) SINT_MAX_OF_TYPE(int_fast32_t)); break; |
| CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break; |
| CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break; |
| CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break; |
| CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break; |
| CASE_TEST(sizeof_long_sane); EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break; |
| CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, sizeof(long) == 8 ? (intptr_t) 0x8000000000000000LL : (intptr_t) 0x80000000); break; |
| CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, sizeof(long) == 8 ? (intptr_t) 0x7fffffffffffffffLL : (intptr_t) 0x7fffffff); break; |
| CASE_TEST(limit_uintptr_max); EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break; |
| 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 __LINE__: |
| return ret; /* must be last */ |
| /* note: do not set any defaults so as to permit holes above */ |
| } |
| } |
| return ret; |
| } |
| |
| #define EXPECT_VFPRINTF(c, expected, fmt, ...) \ |
| ret += expect_vfprintf(llen, c, expected, fmt, ##__VA_ARGS__) |
| |
| static int expect_vfprintf(int llen, int c, const char *expected, const char *fmt, ...) |
| { |
| int ret, fd; |
| 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; |
| } |
| |
| memfile = fdopen(fd, "w+"); |
| if (!memfile) { |
| result(llen, FAIL); |
| return 1; |
| } |
| |
| va_start(args, fmt); |
| w = vfprintf(memfile, fmt, args); |
| va_end(args); |
| |
| if (w != c) { |
| llen += printf(" written(%d) != %d", (int)w, c); |
| result(llen, FAIL); |
| return 1; |
| } |
| |
| fflush(memfile); |
| lseek(fd, 0, SEEK_SET); |
| |
| r = read(fd, buf, sizeof(buf) - 1); |
| |
| fclose(memfile); |
| |
| if (r != w) { |
| llen += printf(" written(%d) != read(%d)", (int)w, (int)r); |
| result(llen, FAIL); |
| return 1; |
| } |
| |
| buf[r] = '\0'; |
| llen += printf(" \"%s\" = \"%s\"", expected, buf); |
| ret = strncmp(expected, buf, c); |
| |
| result(llen, ret ? FAIL : OK); |
| return ret; |
| } |
| |
| static int run_vfprintf(int min, int max) |
| { |
| int test; |
| int ret = 0; |
| |
| for (test = min; test >= 0 && test <= max; test++) { |
| int llen = 0; /* line length */ |
| |
| /* avoid leaving empty lines below, this will insert holes into |
| * test numbers. |
| */ |
| switch (test + __LINE__ + 1) { |
| CASE_TEST(empty); EXPECT_VFPRINTF(0, "", ""); break; |
| CASE_TEST(simple); EXPECT_VFPRINTF(3, "foo", "foo"); break; |
| CASE_TEST(string); EXPECT_VFPRINTF(3, "foo", "%s", "foo"); break; |
| CASE_TEST(number); EXPECT_VFPRINTF(4, "1234", "%d", 1234); break; |
| CASE_TEST(negnumber); EXPECT_VFPRINTF(5, "-1234", "%d", -1234); break; |
| CASE_TEST(unsigned); EXPECT_VFPRINTF(5, "12345", "%u", 12345); break; |
| CASE_TEST(char); EXPECT_VFPRINTF(1, "c", "%c", 'c'); break; |
| CASE_TEST(hex); EXPECT_VFPRINTF(1, "f", "%x", 0xf); break; |
| CASE_TEST(pointer); EXPECT_VFPRINTF(3, "0x1", "%p", (void *) 0x1); break; |
| case __LINE__: |
| return ret; /* must be last */ |
| /* note: do not set any defaults so as to permit holes above */ |
| } |
| } |
| return ret; |
| } |
| |
| static int smash_stack(void) |
| { |
| char buf[100]; |
| volatile char *ptr = buf; |
| size_t i; |
| |
| for (i = 0; i < 200; i++) |
| ptr[i] = 'P'; |
| |
| return 1; |
| } |
| |
| static int run_protection(int min __attribute__((unused)), |
| int max __attribute__((unused))) |
| { |
| pid_t pid; |
| int llen = 0, status; |
| |
| llen += printf("0 -fstackprotector "); |
| |
| #if !defined(_NOLIBC_STACKPROTECTOR) |
| llen += printf("not supported"); |
| result(llen, SKIPPED); |
| return 0; |
| #endif |
| |
| #if defined(_NOLIBC_STACKPROTECTOR) |
| if (!__stack_chk_guard) { |
| llen += printf("__stack_chk_guard not initialized"); |
| result(llen, FAIL); |
| return 1; |
| } |
| #endif |
| |
| pid = -1; |
| pid = fork(); |
| |
| switch (pid) { |
| case -1: |
| llen += printf("fork()"); |
| result(llen, FAIL); |
| return 1; |
| |
| case 0: |
| close(STDOUT_FILENO); |
| close(STDERR_FILENO); |
| |
| prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); |
| smash_stack(); |
| return 1; |
| |
| default: |
| pid = waitpid(pid, &status, 0); |
| |
| if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) { |
| llen += printf("waitpid()"); |
| result(llen, FAIL); |
| return 1; |
| } |
| result(llen, OK); |
| return 0; |
| } |
| } |
| |
| /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */ |
| int prepare(void) |
| { |
| struct stat stat_buf; |
| |
| /* It's possible that /dev doesn't even exist or was not mounted, so |
| * we'll try to create it, mount it, or create minimal entries into it. |
| * We want at least /dev/null and /dev/console. |
| */ |
| if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) { |
| if (stat("/dev/console", &stat_buf) != 0 || |
| stat("/dev/null", &stat_buf) != 0 || |
| stat("/dev/zero", &stat_buf) != 0) { |
| /* try devtmpfs first, otherwise fall back to manual creation */ |
| if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) { |
| mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1)); |
| mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3)); |
| mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5)); |
| } |
| } |
| } |
| |
| /* If no /dev/console was found before calling init, stdio is closed so |
| * we need to reopen it from /dev/console. If it failed above, it will |
| * still fail here and we cannot emit a message anyway. |
| */ |
| if (close(dup(1)) == -1) { |
| int fd = open("/dev/console", O_RDWR); |
| |
| if (fd >= 0) { |
| if (fd != 0) |
| dup2(fd, 0); |
| if (fd != 1) |
| dup2(fd, 1); |
| if (fd != 2) |
| dup2(fd, 2); |
| if (fd > 2) |
| close(fd); |
| puts("\nSuccessfully reopened /dev/console."); |
| } |
| } |
| |
| /* try to mount /proc if not mounted. Silently fail otherwise */ |
| if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) { |
| if (stat("/proc/self", &stat_buf) != 0) { |
| /* If not mountable, remove /proc completely to avoid misuse */ |
| if (mount("none", "/proc", "proc", 0, 0) != 0) |
| rmdir("/proc"); |
| } |
| } |
| |
| /* some tests rely on a writable /tmp */ |
| mkdir("/tmp", 0755); |
| |
| return 0; |
| } |
| |
| /* This is the definition of known test names, with their functions */ |
| static const struct test test_names[] = { |
| /* add new tests here */ |
| { .name = "startup", .func = run_startup }, |
| { .name = "syscall", .func = run_syscall }, |
| { .name = "stdlib", .func = run_stdlib }, |
| { .name = "vfprintf", .func = run_vfprintf }, |
| { .name = "protection", .func = run_protection }, |
| { 0 } |
| }; |
| |
| static int is_setting_valid(char *test) |
| { |
| int idx, len, test_len, valid = 0; |
| char delimiter; |
| |
| if (!test) |
| return valid; |
| |
| test_len = strlen(test); |
| |
| for (idx = 0; test_names[idx].name; idx++) { |
| len = strlen(test_names[idx].name); |
| if (test_len < len) |
| continue; |
| |
| if (strncmp(test, test_names[idx].name, len) != 0) |
| continue; |
| |
| delimiter = test[len]; |
| if (delimiter != ':' && delimiter != ',' && delimiter != '\0') |
| continue; |
| |
| valid = 1; |
| break; |
| } |
| |
| return valid; |
| } |
| |
| int main(int argc, char **argv, char **envp) |
| { |
| int min = 0; |
| int max = INT_MAX; |
| int ret = 0; |
| int err; |
| int idx; |
| char *test; |
| |
| argv0 = argv[0]; |
| test_argc = argc; |
| test_argv = argv; |
| test_envp = envp; |
| |
| /* when called as init, it's possible that no console was opened, for |
| * example if no /dev file system was provided. We'll check that fd#1 |
| * was opened, and if not we'll attempt to create and open /dev/console |
| * and /dev/null that we'll use for later tests. |
| */ |
| if (getpid() == 1) |
| prepare(); |
| |
| /* the definition of a series of tests comes from either argv[1] or the |
| * "NOLIBC_TEST" environment variable. It's made of a comma-delimited |
| * series of test names and optional ranges: |
| * syscall:5-15[:.*],stdlib:8-10 |
| */ |
| test = argv[1]; |
| if (!is_setting_valid(test)) |
| test = getenv("NOLIBC_TEST"); |
| |
| if (is_setting_valid(test)) { |
| char *comma, *colon, *dash, *value; |
| |
| do { |
| comma = strchr(test, ','); |
| if (comma) |
| *(comma++) = '\0'; |
| |
| colon = strchr(test, ':'); |
| if (colon) |
| *(colon++) = '\0'; |
| |
| for (idx = 0; test_names[idx].name; idx++) { |
| if (strcmp(test, test_names[idx].name) == 0) |
| break; |
| } |
| |
| if (test_names[idx].name) { |
| /* The test was named, it will be called at least |
| * once. We may have an optional range at <colon> |
| * here, which defaults to the full range. |
| */ |
| do { |
| min = 0; max = INT_MAX; |
| value = colon; |
| if (value && *value) { |
| colon = strchr(value, ':'); |
| if (colon) |
| *(colon++) = '\0'; |
| |
| dash = strchr(value, '-'); |
| if (dash) |
| *(dash++) = '\0'; |
| |
| /* support :val: :min-max: :min-: :-max: */ |
| if (*value) |
| min = atoi(value); |
| if (!dash) |
| max = min; |
| else if (*dash) |
| max = atoi(dash); |
| |
| value = colon; |
| } |
| |
| /* now's time to call the test */ |
| printf("Running test '%s'\n", test_names[idx].name); |
| err = test_names[idx].func(min, max); |
| ret += err; |
| printf("Errors during this test: %d\n\n", err); |
| } while (colon && *colon); |
| } else |
| printf("Ignoring unknown test name '%s'\n", test); |
| |
| test = comma; |
| } while (test && *test); |
| } else { |
| /* no test mentioned, run everything */ |
| for (idx = 0; test_names[idx].name; idx++) { |
| printf("Running test '%s'\n", test_names[idx].name); |
| err = test_names[idx].func(min, max); |
| ret += err; |
| printf("Errors during this test: %d\n\n", err); |
| } |
| } |
| |
| printf("Total number of errors: %d\n", ret); |
| |
| if (getpid() == 1) { |
| /* we're running as init, there's no other process on the |
| * system, thus likely started from a VM for a quick check. |
| * Exiting will provoke a kernel panic that may be reported |
| * as an error by Qemu or the hypervisor, while stopping |
| * cleanly will often be reported as a success. This allows |
| * to use the output of this program for bisecting kernels. |
| */ |
| printf("Leaving init with final status: %d\n", !!ret); |
| if (ret == 0) |
| reboot(RB_POWER_OFF); |
| #if defined(__x86_64__) |
| /* QEMU started with "-device isa-debug-exit -no-reboot" will |
| * exit with status code 2N+1 when N is written to 0x501. We |
| * hard-code the syscall here as it's arch-dependent. |
| */ |
| else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0) |
| __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0)); |
| /* if it does nothing, fall back to the regular panic */ |
| #endif |
| } |
| |
| printf("Exiting with status %d\n", !!ret); |
| return !!ret; |
| } |