diff --git a/libc/include/bits/posix_limits.h b/libc/include/bits/posix_limits.h
index e5846d6..2688cc5 100644
--- a/libc/include/bits/posix_limits.h
+++ b/libc/include/bits/posix_limits.h
@@ -70,7 +70,7 @@
 #define _POSIX_SHELL 1 /* system. */
 #define _POSIX_SPAWN __BIONIC_POSIX_FEATURE_SINCE(28) /* <spawn.h> */
 #define _POSIX_SPIN_LOCKS __BIONIC_POSIX_FEATURE_SINCE(24) /* pthread_spin_*. */
-#define _POSIX_SPORADIC_SERVER _POSIX_VERSION /* sched_setparam/sched_setscheduler. */
+#define _POSIX_SPORADIC_SERVER __BIONIC_POSIX_FEATURE_MISSING /* No SCHED_SPORADIC. */
 #define _POSIX_SYNCHRONIZED_IO _POSIX_VERSION
 #define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION /* Strictly, we're missing the deprecated pthread_attr_getstackaddr/pthread_attr_setstackaddr, but we do have pthread_attr_getstack/pthread_attr_setstack. */
 #define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION /* pthread_attr_getstack/pthread_attr_getstacksize/pthread_attr_setstack/pthread_attr_setstacksize. */
@@ -82,7 +82,7 @@
 #define _POSIX_THREAD_ROBUST_PRIO_INHERIT __BIONIC_POSIX_FEATURE_MISSING
 #define _POSIX_THREAD_ROBUST_PRIO_PROTECT __BIONIC_POSIX_FEATURE_MISSING
 #define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
-#define _POSIX_THREAD_SPORADIC_SERVER _POSIX_VERSION /* sched_setparam/sched_setscheduler. */
+#define _POSIX_THREAD_SPORADIC_SERVER __BIONIC_POSIX_FEATURE_MISSING /* No SCHED_SPORADIC. */
 #define _POSIX_THREADS _POSIX_VERSION /* Strictly, pthread_cancel/pthread_testcancel are missing. */
 #define _POSIX_TIMEOUTS __BIONIC_POSIX_FEATURE_SINCE(21) /* pthread_mutex_timedlock arrived late. */
 #define _POSIX_TIMERS _POSIX_VERSION /* clock_getres/clock_gettime/clock_settime/nanosleep/timer_create/timer_delete/timer_gettime/timer_getoverrun/timer_settime. */
@@ -94,6 +94,15 @@
 
 #define _POSIX_VDISABLE             '\0'
 
+#define _POSIX2_C_BIND              _POSIX_VERSION
+#define _POSIX2_C_DEV               __BIONIC_POSIX_FEATURE_MISSING
+#define _POSIX2_CHAR_TERM           _POSIX_VERSION
+#define _POSIX2_FORT_DEV            __BIONIC_POSIX_FEATURE_MISSING
+#define _POSIX2_FORT_RUN            __BIONIC_POSIX_FEATURE_MISSING
+#define _POSIX2_LOCALEDEF           __BIONIC_POSIX_FEATURE_MISSING
+#define _POSIX2_SW_DEV              __BIONIC_POSIX_FEATURE_MISSING
+#define _POSIX2_UPE                 __BIONIC_POSIX_FEATURE_MISSING
+
 #if defined(__LP64__)
 #define _POSIX_V7_ILP32_OFF32       -1
 #define _POSIX_V7_ILP32_OFFBIG      -1
@@ -106,16 +115,26 @@
 #define _POSIX_V7_LPBIG_OFFBIG      -1
 #endif
 
+#define _XOPEN_CRYPT                __BIONIC_POSIX_FEATURE_MISSING
+#define _XOPEN_ENH_I18N             1
+#define _XOPEN_LEGACY               __BIONIC_POSIX_FEATURE_MISSING
+#define _XOPEN_REALTIME             1
+#define _XOPEN_REALTIME_THREADS     1
+#define _XOPEN_SHM                  1
+#define _XOPEN_STREAMS              __BIONIC_POSIX_FEATURE_MISSING
+#define _XOPEN_UNIX                 1
+
 /* Minimum values for other maxima. These numbers are simply lower bounds mandated by POSIX. */
-/* Any constant values here other than -1 or 200809L are explicitly specified by POSIX.1-2008. */
+/* The constant values here are explicitly specified by POSIX, not implementation dependent. */
 #define _POSIX_AIO_LISTIO_MAX       2
 #define _POSIX_AIO_MAX              1
 #define _POSIX_ARG_MAX              4096
 #define _POSIX_CHILD_MAX            25
+#define _POSIX_CLOCKRES_MIN         20000000
 #define _POSIX_DELAYTIMER_MAX       32
 #define _POSIX_HOST_NAME_MAX        255
 #define _POSIX_LINK_MAX             8
-#define _POSIX_LOGIN_NAME_MAX       9  /* includes trailing NUL */
+#define _POSIX_LOGIN_NAME_MAX       9
 #define _POSIX_MAX_CANON            255
 #define _POSIX_MAX_INPUT            255
 #define _POSIX_MQ_OPEN_MAX          8
@@ -126,45 +145,36 @@
 #define _POSIX_PATH_MAX             256
 #define _POSIX_PIPE_BUF             512
 #define _POSIX_RE_DUP_MAX           255
+#define _POSIX_RTSIG_MAX            8
 #define _POSIX_SEM_NSEMS_MAX        256
 #define _POSIX_SEM_VALUE_MAX        32767
 #define _POSIX_SIGQUEUE_MAX         32
 #define _POSIX_SSIZE_MAX            32767
 #define _POSIX_STREAM_MAX           8
+#define _POSIX_SS_REPL_MAX          4
 #define _POSIX_SYMLINK_MAX          255
 #define _POSIX_SYMLOOP_MAX          8
 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
 #define _POSIX_THREAD_KEYS_MAX      128
 #define _POSIX_THREAD_THREADS_MAX   64
 #define _POSIX_TIMER_MAX            32
+#define _POSIX_TRACE_EVENT_NAME_MAX 30
 #define _POSIX_TRACE_NAME_MAX       8
 #define _POSIX_TRACE_SYS_MAX        8
 #define _POSIX_TRACE_USER_EVENT_MAX 32
-#define _POSIX_TTY_NAME_MAX         9  /* includes trailing NUL */
+#define _POSIX_TTY_NAME_MAX         9
 #define _POSIX_TZNAME_MAX           6
 #define _POSIX2_BC_BASE_MAX         99
 #define _POSIX2_BC_DIM_MAX          2048
 #define _POSIX2_BC_SCALE_MAX        99
 #define _POSIX2_BC_STRING_MAX       1000
 #define _POSIX2_CHARCLASS_NAME_MAX  14
-#define _POSIX2_CHAR_TERM           -1  /* not implemented */
 #define _POSIX2_COLL_WEIGHTS_MAX    2
-#define _POSIX2_C_BIND              _POSIX_VERSION
-#define _POSIX2_C_DEV               -1  /* c dev utilities not implemented */
 #define _POSIX2_EXPR_NEST_MAX       32
 #define _POSIX2_LINE_MAX            2048
-#define _POSIX2_LOCALEDEF           -1  /* localedef utilitiy not implemented */
-#define _POSIX2_RE_DUP_MAX          _POSIX_RE_DUP_MAX
-#define _POSIX2_SW_DEV              -1  /* software dev utilities not implemented */
-#define _POSIX2_UPE                 -1  /* user portability utilities not implemented */
-
-#define _XOPEN_ENH_I18N             -1  /* we don't support internationalization in the C library */
-#define _XOPEN_CRYPT                -1  /* don't support X/Open Encryption */
+#define _POSIX2_RE_DUP_MAX          255
 #define _XOPEN_IOV_MAX              16
-#define _XOPEN_LEGACY               -1  /* not support all */
-#define _XOPEN_REALTIME             -1 /* we don't support all these functions */
-#define _XOPEN_REALTIME_THREADS     -1  /* same here */
-#define _XOPEN_SHM                  -1
-#define _XOPEN_UNIX                 1
+#define _XOPEN_NAME_MAX             255
+#define _XOPEN_PATH_MAX             1024
 
 #endif
diff --git a/libc/include/limits.h b/libc/include/limits.h
index 4384f6f..48e7ea9 100644
--- a/libc/include/limits.h
+++ b/libc/include/limits.h
@@ -61,6 +61,7 @@
 #else
 # define LONG_BIT 32
 #endif
+#define WORD_BIT 32
 
 #define	SCHAR_MAX	0x7f		/* max value for a signed char */
 #define SCHAR_MIN	(-0x7f-1)	/* min value for a signed char */
@@ -130,6 +131,8 @@
 
 #define MB_LEN_MAX 4
 
+#define NZERO 20
+
 #define IOV_MAX 1024
 #define SEM_VALUE_MAX 0x3fffffff
 
diff --git a/libc/private/CachedProperty.h b/libc/private/CachedProperty.h
index 417a855..84ead01 100644
--- a/libc/private/CachedProperty.h
+++ b/libc/private/CachedProperty.h
@@ -42,7 +42,9 @@
     : property_name_(property_name),
       prop_info_(nullptr),
       cached_area_serial_(0),
-      cached_property_serial_(0) {
+      cached_property_serial_(0),
+      is_read_only_(strncmp(property_name, "ro.", 3) == 0),
+      read_only_property_(nullptr) {
     cached_value_[0] = '\0';
   }
 
@@ -76,7 +78,9 @@
         __system_property_read_callback(prop_info_, &CachedProperty::Callback, this);
       }
     }
-
+    if (is_read_only_ && read_only_property_ != nullptr) {
+      return read_only_property_;
+    }
     return cached_value_;
   }
 
@@ -86,10 +90,18 @@
   uint32_t cached_area_serial_;
   uint32_t cached_property_serial_;
   char cached_value_[PROP_VALUE_MAX];
+  bool is_read_only_;
+  const char* read_only_property_;
 
   static void Callback(void* data, const char*, const char* value, uint32_t serial) {
     CachedProperty* instance = reinterpret_cast<CachedProperty*>(data);
     instance->cached_property_serial_ = serial;
-    strcpy(instance->cached_value_, value);
+    // Read only properties can be larger than PROP_VALUE_MAX, but also never change value or
+    // location, thus we return the pointer from the shared memory directly.
+    if (instance->is_read_only_) {
+      instance->read_only_property_ = value;
+    } else {
+      strlcpy(instance->cached_value_, value, PROP_VALUE_MAX);
+    }
   }
 };
diff --git a/tests/dl_test.cpp b/tests/dl_test.cpp
index 2133a2c..d56b017 100644
--- a/tests/dl_test.cpp
+++ b/tests/dl_test.cpp
@@ -181,12 +181,8 @@
 #endif
 
 #if defined(__BIONIC__)
-static bool is_user_build() {
-  std::string build_type = android::base::GetProperty("ro.build.type", "user");
-  if (build_type == "userdebug" || build_type == "eng") {
-    return false;
-  }
-  return true;
+static bool is_debuggable_build() {
+  return android::base::GetBoolProperty("ro.debuggable", false);
 }
 #endif
 
@@ -194,7 +190,7 @@
 // whose search paths include the 'ns2/' subdir.
 TEST(dl, exec_with_ld_config_file) {
 #if defined(__BIONIC__)
-  if (is_user_build()) {
+  if (!is_debuggable_build()) {
     // LD_CONFIG_FILE is not supported on user build
     return;
   }
@@ -216,7 +212,7 @@
 // additional namespaces other than the default namespace.
 TEST(dl, exec_with_ld_config_file_with_ld_preload) {
 #if defined(__BIONIC__)
-  if (is_user_build()) {
+  if (!is_debuggable_build()) {
     // LD_CONFIG_FILE is not supported on user build
     return;
   }
@@ -244,7 +240,7 @@
     // This test is only for CTS.
     return;
   }
-  if (!is_user_build()) {
+  if (is_debuggable_build()) {
     // Skip the test for non production devices
     return;
   }
diff --git a/tests/limits_test.cpp b/tests/limits_test.cpp
index 1d48ffe..ed42dbb 100644
--- a/tests/limits_test.cpp
+++ b/tests/limits_test.cpp
@@ -19,9 +19,9 @@
 #include <limits.h>
 
 TEST(limits, macros) {
-#if CHAR_BIT != 8
-#error Insane CHAR_BIT
-#endif
+  ASSERT_EQ(8, CHAR_BIT);
+  ASSERT_EQ(static_cast<int>(sizeof(int)), WORD_BIT);
+  ASSERT_EQ(20, NZERO);
 #if !defined(MB_LEN_MAX)
 #error MB_LEN_MAX
 #endif
diff --git a/tests/unistd_test.cpp b/tests/unistd_test.cpp
index 7c67cce..c79ed59 100644
--- a/tests/unistd_test.cpp
+++ b/tests/unistd_test.cpp
@@ -686,104 +686,131 @@
   ASSERT_TRUE(rc > 0 && powerof2(rc));
 }
 
-
-TEST(UNISTD_TEST, _POSIX_macros_smoke) {
+TEST(UNISTD_TEST, _POSIX_constants) {
   // Make a tight verification of _POSIX_* / _POSIX2_* / _XOPEN_* macros, to prevent change by mistake.
   // Verify according to POSIX.1-2008.
   EXPECT_EQ(200809L, _POSIX_VERSION);
 
+  EXPECT_EQ(2, _POSIX_AIO_LISTIO_MAX);
+  EXPECT_EQ(1, _POSIX_AIO_MAX);
+  EXPECT_EQ(4096, _POSIX_ARG_MAX);
+  EXPECT_EQ(25, _POSIX_CHILD_MAX);
+  EXPECT_EQ(20000000, _POSIX_CLOCKRES_MIN);
+  EXPECT_EQ(32, _POSIX_DELAYTIMER_MAX);
+  EXPECT_EQ(255, _POSIX_HOST_NAME_MAX);
+  EXPECT_EQ(8, _POSIX_LINK_MAX);
+  EXPECT_EQ(9, _POSIX_LOGIN_NAME_MAX);
+  EXPECT_EQ(255, _POSIX_MAX_CANON);
+  EXPECT_EQ(255, _POSIX_MAX_INPUT);
+  EXPECT_EQ(8, _POSIX_MQ_OPEN_MAX);
+  EXPECT_EQ(32, _POSIX_MQ_PRIO_MAX);
+  EXPECT_EQ(14, _POSIX_NAME_MAX);
+  EXPECT_EQ(8, _POSIX_NGROUPS_MAX);
+  EXPECT_EQ(20, _POSIX_OPEN_MAX);
+  EXPECT_EQ(256, _POSIX_PATH_MAX);
+  EXPECT_EQ(512, _POSIX_PIPE_BUF);
+  EXPECT_EQ(255, _POSIX_RE_DUP_MAX);
+  EXPECT_EQ(8, _POSIX_RTSIG_MAX);
+  EXPECT_EQ(256, _POSIX_SEM_NSEMS_MAX);
+  EXPECT_EQ(32767, _POSIX_SEM_VALUE_MAX);
+  EXPECT_EQ(32, _POSIX_SIGQUEUE_MAX);
+  EXPECT_EQ(32767, _POSIX_SSIZE_MAX);
+  EXPECT_EQ(8, _POSIX_STREAM_MAX);
+#if !defined(__GLIBC__)
+  EXPECT_EQ(4, _POSIX_SS_REPL_MAX);
+#endif
+  EXPECT_EQ(255, _POSIX_SYMLINK_MAX);
+  EXPECT_EQ(8, _POSIX_SYMLOOP_MAX);
+  EXPECT_EQ(4, _POSIX_THREAD_DESTRUCTOR_ITERATIONS);
+  EXPECT_EQ(128, _POSIX_THREAD_KEYS_MAX);
+  EXPECT_EQ(64, _POSIX_THREAD_THREADS_MAX);
+  EXPECT_EQ(32, _POSIX_TIMER_MAX);
+#if !defined(__GLIBC__)
+  EXPECT_EQ(30, _POSIX_TRACE_EVENT_NAME_MAX);
+  EXPECT_EQ(8, _POSIX_TRACE_NAME_MAX);
+  EXPECT_EQ(8, _POSIX_TRACE_SYS_MAX);
+  EXPECT_EQ(32, _POSIX_TRACE_USER_EVENT_MAX);
+#endif
+  EXPECT_EQ(9, _POSIX_TTY_NAME_MAX);
+  EXPECT_EQ(6, _POSIX_TZNAME_MAX);
+  EXPECT_EQ(99, _POSIX2_BC_BASE_MAX);
+  EXPECT_EQ(2048, _POSIX2_BC_DIM_MAX);
+  EXPECT_EQ(99, _POSIX2_BC_SCALE_MAX);
+  EXPECT_EQ(1000, _POSIX2_BC_STRING_MAX);
+  EXPECT_EQ(14, _POSIX2_CHARCLASS_NAME_MAX);
+  EXPECT_EQ(2, _POSIX2_COLL_WEIGHTS_MAX);
+  EXPECT_EQ(32, _POSIX2_EXPR_NEST_MAX);
+  EXPECT_EQ(2048, _POSIX2_LINE_MAX);
+  EXPECT_EQ(255, _POSIX2_RE_DUP_MAX);
+
+  EXPECT_EQ(16, _XOPEN_IOV_MAX);
+#if !defined(__GLIBC__)
+  EXPECT_EQ(255, _XOPEN_NAME_MAX);
+  EXPECT_EQ(1024, _XOPEN_PATH_MAX);
+#endif
+}
+
+TEST(UNISTD_TEST, _POSIX_options) {
   EXPECT_EQ(_POSIX_VERSION, _POSIX_ADVISORY_INFO);
-  EXPECT_GT(_POSIX_AIO_LISTIO_MAX, 0);
-  EXPECT_GT(_POSIX_AIO_MAX, 0);
-  EXPECT_GT(_POSIX_ARG_MAX, 0);
   EXPECT_GT(_POSIX_BARRIERS, 0);
   EXPECT_GT(_POSIX_SPIN_LOCKS, 0);
-  EXPECT_GT(_POSIX_CHILD_MAX, 0);
   EXPECT_NE(_POSIX_CHOWN_RESTRICTED, -1);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_CLOCK_SELECTION);
+#if !defined(__GLIBC__) // glibc supports ancient kernels.
   EXPECT_EQ(_POSIX_VERSION, _POSIX_CPUTIME);
-  EXPECT_GT(_POSIX_DELAYTIMER_MAX, 0);
+#endif
   EXPECT_EQ(_POSIX_VERSION, _POSIX_FSYNC);
-  EXPECT_GT(_POSIX_HOST_NAME_MAX, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_IPV6);
   EXPECT_GT(_POSIX_JOB_CONTROL, 0);
-  EXPECT_GT(_POSIX_LINK_MAX, 0);
-  EXPECT_GT(_POSIX_LOGIN_NAME_MAX, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_MAPPED_FILES);
-  EXPECT_GT(_POSIX_MAX_CANON, 0);
-  EXPECT_GT(_POSIX_MAX_INPUT, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_MEMLOCK);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_MEMLOCK_RANGE);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_MEMORY_PROTECTION);
+#if !defined(__GLIBC__) // glibc supports ancient kernels.
   EXPECT_EQ(_POSIX_VERSION, _POSIX_MONOTONIC_CLOCK);
-  EXPECT_GT(_POSIX_MQ_OPEN_MAX, 0);
-  EXPECT_GT(_POSIX_MQ_PRIO_MAX, 0);
-  EXPECT_GT(_POSIX_NAME_MAX, 0);
-  EXPECT_GT(_POSIX_NGROUPS_MAX, 0);
+#endif
   EXPECT_GT(_POSIX_NO_TRUNC, 0);
-  EXPECT_GT(_POSIX_OPEN_MAX, 0);
-  EXPECT_GT(_POSIX_PATH_MAX, 0);
-  EXPECT_GT(_POSIX_PIPE_BUF, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_PRIORITY_SCHEDULING);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_RAW_SOCKETS);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_READER_WRITER_LOCKS);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_REALTIME_SIGNALS);
   EXPECT_GT(_POSIX_REGEXP, 0);
-  EXPECT_GT(_POSIX_RE_DUP_MAX, 0);
   EXPECT_GT(_POSIX_SAVED_IDS, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_SEMAPHORES);
-  EXPECT_GT(_POSIX_SEM_NSEMS_MAX, 0);
-  EXPECT_GT(_POSIX_SEM_VALUE_MAX, 0);
   EXPECT_GT(_POSIX_SHELL, 0);
-  EXPECT_GT(_POSIX_SIGQUEUE_MAX, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_SPAWN);
-  EXPECT_EQ(_POSIX_VERSION, _POSIX_SPORADIC_SERVER);
-  EXPECT_GT(_POSIX_SSIZE_MAX, 0);
-  EXPECT_GT(_POSIX_STREAM_MAX, 0);
-  EXPECT_GT(_POSIX_SYMLINK_MAX, 0);
-  EXPECT_GT(_POSIX_SYMLOOP_MAX, 0);
+  EXPECT_EQ(-1, _POSIX_SPORADIC_SERVER);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_SYNCHRONIZED_IO);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREADS);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_ATTR_STACKADDR);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_ATTR_STACKSIZE);
+#if !defined(__GLIBC__) // glibc supports ancient kernels.
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_CPUTIME);
-  EXPECT_GT(_POSIX_THREAD_DESTRUCTOR_ITERATIONS, 0);
-  EXPECT_EQ(_POSIX_THREAD_KEYS_MAX, 128);
+#endif
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_PRIORITY_SCHEDULING);
-  EXPECT_EQ(-1, _POSIX_THREAD_PRIO_INHERIT);
-  EXPECT_EQ(-1, _POSIX_THREAD_PRIO_PROTECT);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_PROCESS_SHARED);
   EXPECT_EQ(-1, _POSIX_THREAD_ROBUST_PRIO_PROTECT);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_SAFE_FUNCTIONS);
-  EXPECT_EQ(_POSIX_VERSION, _POSIX_THREAD_SPORADIC_SERVER);
-  EXPECT_GT(_POSIX_THREAD_THREADS_MAX, 0);
+  EXPECT_EQ(-1, _POSIX_THREAD_SPORADIC_SERVER);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_TIMEOUTS);
   EXPECT_EQ(_POSIX_VERSION, _POSIX_TIMERS);
-  EXPECT_GT(_POSIX_TIMER_MAX, 0);
   EXPECT_EQ(-1, _POSIX_TRACE);
   EXPECT_EQ(-1, _POSIX_TRACE_EVENT_FILTER);
   EXPECT_EQ(-1, _POSIX_TRACE_INHERIT);
   EXPECT_EQ(-1, _POSIX_TRACE_LOG);
-  EXPECT_GT(_POSIX_TTY_NAME_MAX, 0);
   EXPECT_EQ(-1, _POSIX_TYPED_MEMORY_OBJECTS);
-  EXPECT_GT(_POSIX_TZNAME_MAX, 0);
   EXPECT_NE(-1, _POSIX_VDISABLE);
 
   EXPECT_EQ(_POSIX_VERSION, _POSIX2_VERSION);
-  EXPECT_GT(_POSIX2_BC_BASE_MAX, 0);
-  EXPECT_GT(_POSIX2_BC_DIM_MAX, 0);
-  EXPECT_GT(_POSIX2_BC_SCALE_MAX, 0);
-  EXPECT_GT(_POSIX2_BC_STRING_MAX, 0);
-  EXPECT_GT(_POSIX2_CHARCLASS_NAME_MAX, 0);
-  EXPECT_GT(_POSIX2_COLL_WEIGHTS_MAX, 0);
   EXPECT_EQ(_POSIX_VERSION, _POSIX2_C_BIND);
-  EXPECT_GT(_POSIX2_EXPR_NEST_MAX, 0);
-  EXPECT_GT(_POSIX2_LINE_MAX, 0);
-  EXPECT_GT(_POSIX2_RE_DUP_MAX, 0);
+  EXPECT_EQ(_POSIX_VERSION, _POSIX2_CHAR_TERM);
 
   EXPECT_EQ(700, _XOPEN_VERSION);
-  EXPECT_GT(_XOPEN_IOV_MAX, 0);
-  EXPECT_GT(_XOPEN_UNIX, 0);
+  EXPECT_EQ(1, _XOPEN_ENH_I18N);
+  EXPECT_EQ(1, _XOPEN_REALTIME);
+  EXPECT_EQ(1, _XOPEN_REALTIME_THREADS);
+  EXPECT_EQ(1, _XOPEN_SHM);
+  EXPECT_EQ(1, _XOPEN_UNIX);
 
 #if defined(__BIONIC__)
   // These tests only pass on bionic, as bionic and glibc has different support on these macros.
@@ -792,21 +819,20 @@
   EXPECT_EQ(-1, _POSIX_MESSAGE_PASSING);
   EXPECT_EQ(-1, _POSIX_PRIORITIZED_IO);
   EXPECT_EQ(-1, _POSIX_SHARED_MEMORY_OBJECTS);
+  EXPECT_EQ(-1, _POSIX_THREAD_PRIO_INHERIT);
+  EXPECT_EQ(-1, _POSIX_THREAD_PRIO_PROTECT);
   EXPECT_EQ(-1, _POSIX_THREAD_ROBUST_PRIO_INHERIT);
 
-  EXPECT_EQ(-1, _POSIX2_CHAR_TERM);
   EXPECT_EQ(-1, _POSIX2_C_DEV);
+  EXPECT_EQ(-1, _POSIX2_FORT_DEV);
+  EXPECT_EQ(-1, _POSIX2_FORT_RUN);
   EXPECT_EQ(-1, _POSIX2_LOCALEDEF);
   EXPECT_EQ(-1, _POSIX2_SW_DEV);
   EXPECT_EQ(-1, _POSIX2_UPE);
 
-  EXPECT_EQ(-1, _XOPEN_ENH_I18N);
   EXPECT_EQ(-1, _XOPEN_CRYPT);
   EXPECT_EQ(-1, _XOPEN_LEGACY);
-  EXPECT_EQ(-1, _XOPEN_REALTIME);
-  EXPECT_EQ(-1, _XOPEN_REALTIME_THREADS);
-  EXPECT_EQ(-1, _XOPEN_SHM);
-
+  EXPECT_EQ(-1, _XOPEN_STREAMS);
 #endif // defined(__BIONIC__)
 }
 
@@ -916,11 +942,11 @@
   VERIFY_SYSCONF_POSITIVE(_SC_REGEXP);
   VERIFY_SYSCONF_POSITIVE(_SC_SHELL);
   VERIFY_SYSCONF_POSIX_VERSION(_SC_SPAWN);
-  VERIFY_SYSCONF_POSIX_VERSION(_SC_SPORADIC_SERVER);
+  VERIFY_SYSCONF_UNSUPPORTED(_SC_SPORADIC_SERVER);
   VERIFY_SYSCONF_POSITIVE(_SC_SYMLOOP_MAX);
   VERIFY_SYSCONF_POSIX_VERSION(_SC_THREAD_CPUTIME);
   VERIFY_SYSCONF_POSIX_VERSION(_SC_THREAD_PROCESS_SHARED);
-  VERIFY_SYSCONF_POSIX_VERSION(_SC_THREAD_SPORADIC_SERVER);
+  VERIFY_SYSCONF_UNSUPPORTED(_SC_THREAD_SPORADIC_SERVER);
   VERIFY_SYSCONF_POSIX_VERSION(_SC_TIMEOUTS);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_TRACE);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_TRACE_EVENT_FILTER);