diff --git mlibc-clean/options/glibc/generic/execinfo.cpp mlibc-workdir/options/glibc/generic/execinfo.cpp
index 1ed110d..ded9114 100644
--- mlibc-clean/options/glibc/generic/execinfo.cpp
+++ mlibc-workdir/options/glibc/generic/execinfo.cpp
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <unwind.h>
+#include <errno.h>
 
 #include <bits/ensure.h>
 #include <mlibc/debug.hpp>
@@ -52,29 +53,7 @@ _Unwind_Reason_Code trace(_Unwind_Context *context, void *arg) {
 } // namespace
 
 int backtrace(void **buffer, int size) {
-	if (size <= 0)
-		return 0;
-
-	if (!libgccHandle) {
-		libgccHandle = dlopen("libgcc_s.so.1", RTLD_LAZY | RTLD_LOCAL);
-		if (!libgccHandle || libgccHandle.value() == nullptr) {
-			auto error = dlerror();
-			mlibc::infoLogger() << "Failed to load libgcc_s.so.1: " << (error ? error : "") << frg::endlog;
-			return 0;
-		}
-
-		unwindBacktrace = reinterpret_cast<UnwindBacktrace>(dlsym(libgccHandle.value(), "_Unwind_Backtrace"));
-		unwindGetIP = reinterpret_cast<UnwindGetIP>(dlsym(libgccHandle.value(), "_Unwind_GetIP"));
-
-		if (!unwindBacktrace || !unwindGetIP) {
-			mlibc::infoLogger() << "Failed to find unwind functions in libgcc_s.so.1: " << dlerror() << frg::endlog;
-			return 0;
-		}
-	}
-
-	UnwindState state{buffer, size};
-	unwindBacktrace(trace, &state);
-	return state.current_frame;
+	return ENOSYS;
 }
 
 char **backtrace_symbols(void *const *, int) {
@@ -82,25 +61,5 @@ char **backtrace_symbols(void *const *, int) {
 	__builtin_unreachable();
 }
 
-void backtrace_symbols_fd(void *const *buffer, int size, int fd) {
-	if (size <= 0 || fd < 0)
-		return;
-
-	for (int frame_num = 0; frame_num < size; frame_num++) {
-		Dl_info info;
-		if (dladdr(buffer[frame_num], &info) != 0) {
-			if (info.dli_fname != nullptr)
-				write(fd, info.dli_fname, strlen(info.dli_fname));
-
-			if (info.dli_sname != nullptr)
-				dprintf(fd, "(%s+0x%" PRIxPTR ") ", info.dli_sname,
-					reinterpret_cast<uintptr_t>(buffer[frame_num]) - reinterpret_cast<uintptr_t>(info.dli_saddr));
-			else if(info.dli_saddr)
-				dprintf(fd, "(+%p) ", info.dli_saddr);
-			else
-				dprintf(fd, "() ");
-		}
-
-		dprintf(fd, "[%p]\n", buffer[frame_num]);
-	}
+void backtrace_symbols_fd(void *const *, int, int) {
 }
diff --git mlibc-clean/options/internal/generic/global-config.cpp mlibc-workdir/options/internal/generic/global-config.cpp
index 3b7b862..3d86e7a 100644
--- mlibc-clean/options/internal/generic/global-config.cpp
+++ mlibc-workdir/options/internal/generic/global-config.cpp
@@ -1,9 +1,15 @@
 #include <stdlib.h>
-#include <string.h>
+#include <mlibc/allocator.hpp>
 #include <mlibc/global-config.hpp>
 
 namespace mlibc {
 
+namespace {
+
+constinit mlibc::lazy_eternal<GlobalConfig> globalConfigInstance;
+
+} // namespace
+
 struct GlobalConfigGuard {
 	GlobalConfigGuard();
 };
@@ -12,7 +18,7 @@ GlobalConfigGuard guard;
 
 GlobalConfigGuard::GlobalConfigGuard() {
 	// Force the config to be created during initialization of libc.so.
-	mlibc::globalConfig();
+	globalConfigInstance.get();
 }
 
 static bool envEnabled(const char *env) {
@@ -29,4 +35,8 @@ GlobalConfig::GlobalConfig() {
 	debugMonetaryLengths = envEnabled("MLIBC_DEBUG_MONETARY_LENGTHS");
 }
 
+const GlobalConfig &globalConfig() {
+	return globalConfigInstance.get();
+}
+
 } // namespace mlibc
diff --git mlibc-clean/options/internal/include/mlibc/allocator.hpp mlibc-workdir/options/internal/include/mlibc/allocator.hpp
index 852620a..a1bfb0a 100644
--- mlibc-clean/options/internal/include/mlibc/allocator.hpp
+++ mlibc-workdir/options/internal/include/mlibc/allocator.hpp
@@ -3,6 +3,7 @@
 
 #include <mlibc/lock.hpp>
 #include <bits/ensure.h>
+#include <frg/manual_box.hpp>
 #include <frg/slab.hpp>
 #include <internal-config.h>
 
@@ -35,4 +36,34 @@ MemoryAllocator &getAllocator();
 
 #endif // !MLIBC_DEBUG_ALLOCATOR
 
+namespace mlibc {
+
+template <typename T>
+struct lazy_eternal {
+	constexpr lazy_eternal() = default;
+
+	template <typename Self>
+	auto &get(this Self &&self) {
+		if (__atomic_load_n(&self.initialized_, __ATOMIC_ACQUIRE))
+			return *self.box_.get();
+
+		{
+			frg::unique_lock lock{self.lock_};
+			if (!__atomic_load_n(&self.initialized_, __ATOMIC_RELAXED)) {
+				self.box_.initialize();
+				__atomic_store_n(&self.initialized_, 1, __ATOMIC_RELEASE);
+			}
+		}
+
+		return *self.box_.get();
+	}
+
+private:
+	mutable uint32_t initialized_ = 0;
+	mutable FutexLock lock_;
+	mutable frg::manual_box<T> box_;
+};
+
+} // namespace mlibc
+
 #endif // MLIBC_FRIGG_ALLOC
diff --git mlibc-clean/options/internal/include/mlibc/global-config.hpp mlibc-workdir/options/internal/include/mlibc/global-config.hpp
index 0235c54..3fad411 100644
--- mlibc-clean/options/internal/include/mlibc/global-config.hpp
+++ mlibc-workdir/options/internal/include/mlibc/global-config.hpp
@@ -14,11 +14,8 @@ struct GlobalConfig {
 	bool debugMonetaryLengths;
 };
 
-inline const GlobalConfig &globalConfig() {
-	static GlobalConfig cached;
-	return cached;
-}
+const GlobalConfig &globalConfig();
 
-}
+} // namespace mlibc
 
 #endif // MLIBC_GLOBAL_CONFIG
diff --git mlibc-clean/options/internal/include/mlibc/lock.hpp mlibc-workdir/options/internal/include/mlibc/lock.hpp
index f447741..ab44667 100644
--- mlibc-clean/options/internal/include/mlibc/lock.hpp
+++ mlibc-workdir/options/internal/include/mlibc/lock.hpp
@@ -14,7 +14,7 @@
 
 template<bool Recursive>
 struct alignas(4) FutexLockImpl {
-	FutexLockImpl() : _state{0}, _recursion{0} { }
+	constexpr FutexLockImpl() : _state{0}, _recursion{0} { }
 
 	FutexLockImpl(const FutexLockImpl &) = delete;
 
diff --git mlibc-clean/options/internal/include/mlibc/sysdep-signatures.hpp mlibc-workdir/options/internal/include/mlibc/sysdep-signatures.hpp
index d639e43..bff59a5 100644
--- mlibc-clean/options/internal/include/mlibc/sysdep-signatures.hpp
+++ mlibc-workdir/options/internal/include/mlibc/sysdep-signatures.hpp
@@ -23,6 +23,10 @@
 
 #include <mlibc/sysdep-tags.hpp>
 
+#if __MLIBC_POSIX_OPTION
+#include <net/if.h>
+#endif
+
 namespace mlibc {
 
 template<typename Tag>
@@ -235,6 +239,7 @@ SYSDEP_FUNC(SetRegid, gid_t rgid, gid_t egid);
 SYSDEP_FUNC(GetLoginR, char *name, size_t name_len);
 SYSDEP_FUNC(IfIndextoname, unsigned int index, char *name);
 SYSDEP_FUNC(IfNametoindex, const char *name, unsigned int *ret);
+SYSDEP_FUNC(IfNameindex, struct if_nameindex **ret);
 SYSDEP_FUNC(Ptsname, int fd, char *buffer, size_t length);
 SYSDEP_FUNC(Unlockpt, int fd);
 SYSDEP_FUNC(ThreadSetname, void *tcb, const char *name);
diff --git mlibc-clean/options/internal/include/mlibc/sysdep-tags.hpp mlibc-workdir/options/internal/include/mlibc/sysdep-tags.hpp
index 17cf422..b90d201 100644
--- mlibc-clean/options/internal/include/mlibc/sysdep-tags.hpp
+++ mlibc-workdir/options/internal/include/mlibc/sysdep-tags.hpp
@@ -476,6 +476,8 @@ struct GetLoginR {};
 struct IfIndextoname {};
 // int sys_if_nametoindex(const char *name, unsigned int *ret);
 struct IfNametoindex {};
+// int sys_if_nameindex(struct if_nameindex **ret);
+struct IfNameindex {};
 // int sys_ptsname(int fd, char *buffer, size_t length);
 struct Ptsname {};
 // int sys_unlockpt(int fd);
diff --git mlibc-clean/options/posix/generic/net-if.cpp mlibc-workdir/options/posix/generic/net-if.cpp
index ed0c463..8df2580 100644
--- mlibc-clean/options/posix/generic/net-if.cpp
+++ mlibc-workdir/options/posix/generic/net-if.cpp
@@ -6,8 +6,13 @@
 #include <mlibc/all-sysdeps.hpp>
 #include <mlibc/debug.hpp>
 
-void if_freenameindex(struct if_nameindex *) {
-	mlibc::infoLogger() << "mlibc: if_freenameindex is a no-op" << frg::endlog;
+void if_freenameindex(struct if_nameindex *index) {
+	if(!index)
+		return;
+
+	for(struct if_nameindex *it = index; it->if_index || it->if_name; ++it)
+		free(it->if_name);
+	free(index);
 }
 
 char *if_indextoname(unsigned int index, char *name) {
@@ -20,9 +25,13 @@ char *if_indextoname(unsigned int index, char *name) {
 }
 
 struct if_nameindex *if_nameindex(void) {
-	mlibc::infoLogger() << "mlibc: if_nameindex() is a no-op" << frg::endlog;
-	errno = ENOSYS;
-	return nullptr;
+	struct if_nameindex *ret = nullptr;
+	if(int e = mlibc::sysdep_or_enosys<IfNameindex>(&ret); e) {
+		errno = e;
+		return nullptr;
+	}
+
+	return ret;
 }
 
 unsigned int if_nametoindex(const char *name) {
diff --git mlibc-clean/sysdeps/astral/generic/generic.cpp mlibc-workdir/sysdeps/astral/generic/generic.cpp
index 3b04372..a4b934a 100644
--- mlibc-clean/sysdeps/astral/generic/generic.cpp
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -1,7 +1,9 @@
 #include <bits/ensure.h>
+#include <net/if.h>
 #include <mlibc/debug.hpp>
 #include <mlibc/all-sysdeps.hpp>
 #include <errno.h>
+#include <ifaddrs.h>
 #include <astral/syscall.h>
 #include <astral/archctl.h>
 #include <string.h>
@@ -11,8 +13,20 @@
 #include <sys/select.h>
 #include <stdio.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
+#include <sys/statvfs.h>
 #include <unistd.h>
 #include <dirent.h>
+#include <sys/sysmacros.h>
+
+typedef struct {
+	struct sockaddr addr;
+	struct sockaddr broadaddr;
+	struct sockaddr netmask;
+	struct sockaddr hwaddr;
+	short flags;
+	int mtu;
+} astral_net_info_t;
 
 namespace mlibc {
 	int Sysdeps<SetGroups>::operator()(size_t size, const gid_t *list) {
@@ -31,14 +45,214 @@ namespace mlibc {
 		return 0;
 	}
 
-	int Sysdeps<GetSockopt>::operator()(int fd, int layer, int number,
-		void *__restrict buffer, socklen_t *__restrict size) {
+	int Sysdeps<Setxattr>::operator()(const char *path, const char *name,
+		const void *val, size_t size, int flags) {
+		(void)path;
+		(void)name;
+		(void)val;
 		(void)size;
-		(void)buffer;
-		// TODO unstub
-		mlibc::infoLogger() << "getsockopt: " << fd << " " << layer << " " << number << frg::endlog;
+		(void)flags;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Lsetxattr>::operator()(const char *path, const char *name,
+		const void *val, size_t size, int flags) {
+		(void)path;
+		(void)name;
+		(void)val;
+		(void)size;
+		(void)flags;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Fsetxattr>::operator()(int fd, const char *name, const void *val,
+		size_t size, int flags) {
+		(void)fd;
+		(void)name;
+		(void)val;
+		(void)size;
+		(void)flags;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Getxattr>::operator()(const char *path, const char *name,
+		void *val, size_t size, ssize_t *nread) {
+		(void)path;
+		(void)name;
+		(void)val;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Lgetxattr>::operator()(const char *path, const char *name,
+		void *val, size_t size, ssize_t *nread) {
+		(void)path;
+		(void)name;
+		(void)val;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Fgetxattr>::operator()(int fd, const char *name, void *val,
+		size_t size, ssize_t *nread) {
+		(void)fd;
+		(void)name;
+		(void)val;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Listxattr>::operator()(const char *path, char *list, size_t size,
+		ssize_t *nread) {
+		(void)path;
+		(void)list;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Llistxattr>::operator()(const char *path, char *list, size_t size,
+		ssize_t *nread) {
+		(void)path;
+		(void)list;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+	int Sysdeps<Flistxattr>::operator()(int fd, char *list, size_t size,
+		ssize_t *nread) {
+		(void)fd;
+		(void)list;
+		(void)size;
+		(void)nread;
+		return ENOTSUP;
+	}
+
+#ifndef MLIBC_BUILDING_RTLD
+	// XXX this might leak memory in case of an error.
+	int Sysdeps<Getifaddrs>::operator()(struct ifaddrs **out) {
+		struct ifaddrs *list = nullptr;
+
+		int dirfd;
+		int error = sysdep<Open>("/dev/", O_DIRECTORY | O_RDONLY, 0, &dirfd);
+		if(error)
+			return error;
+
+		struct dirent dent;
+		size_t bytes_read;
+		for(;;) {
+			error = sysdep<ReadEntries>(dirfd, &dent, sizeof(dent), &bytes_read);
+			if(error)
+				goto leave;
+
+			if(bytes_read == 0)
+				break;
+
+			struct stat st;
+			if(sysdep<Stat>(fsfd_target::fd_path, dirfd, dent.d_name, AT_SYMLINK_NOFOLLOW, &st))
+				continue;
+
+			if(!S_ISCHR(st.st_mode) || major(st.st_rdev) != 10)
+				continue;
+
+			int fd;
+			error = sysdep<Openat>(dirfd, dent.d_name, 0, 0, &fd);
+			if(error)
+				continue;
+
+			astral_net_info_t net_info = {};
+			int r;
+			error = sysdep<Ioctl>(fd, 0x1337631, &net_info, &r);
+			if(error) {
+				sysdep<Close>(fd);
+				continue;
+			}
+
+			struct ifaddrs *next = (struct ifaddrs *)calloc(1, sizeof(struct ifaddrs));
+			__ensure(next);
+
+			next->ifa_next = list;
+
+			next->ifa_name = strdup(dent.d_name);
+			__ensure(next->ifa_name);
+
+			next->ifa_flags = net_info.flags;
+
+			next->ifa_addr = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+			__ensure(next->ifa_addr);
+			memcpy(next->ifa_addr, &net_info.addr, sizeof(struct sockaddr));
+
+			if(net_info.netmask.sa_family) {
+				next->ifa_netmask = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+				__ensure(next->ifa_netmask);
+				memcpy(next->ifa_netmask, &net_info.netmask, sizeof(struct sockaddr));
+			}
+
+			if(net_info.broadaddr.sa_family) {
+				next->ifa_broadaddr = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+				__ensure(next->ifa_broadaddr);
+				memcpy(next->ifa_broadaddr, &net_info.broadaddr, sizeof(struct sockaddr));
+			}
+
+			next->ifa_data = nullptr;
+
+			list = next;
+			sysdep<Close>(fd);
+		}
+
+		*out = list;
+
+leave:
+		sysdep<Close>(dirfd);
+		return error;
+	}
+
+	// XXX extremely leaky.
+	int Sysdeps<IfNameindex>::operator()(struct if_nameindex **out) {
+		struct ifaddrs *ifaddrs;
+		if(int e = sysdep<Getifaddrs>(&ifaddrs); e)
+			return e;
+
+		struct ifaddrs *it = ifaddrs;
+		int count = 0;
+		while(it) {
+			++count;
+			it = it->ifa_next;
+		}
+
+		struct if_nameindex *arr = (struct if_nameindex *)malloc(sizeof(struct if_nameindex) * (count + 1));
+		if(!arr)
+			return ENOMEM;
+
+		int i = 0;
+		while(ifaddrs) {
+			arr[i].if_index = i + 1;
+			arr[i].if_name = strdup(ifaddrs->ifa_name);
+			__ensure(arr[i].if_name);
+
+			++i;
+
+			ifaddrs = ifaddrs->ifa_next;
+		}
+
+		arr[count].if_index = 0;
+		arr[count].if_name = nullptr;
+
+		*out = arr;
+
 		return 0;
 	}
+#endif
+
+	int Sysdeps<GetSockopt>::operator()(int fd, int layer, int number,
+		void *__restrict buffer, socklen_t *__restrict size) {
+		long ret;
+		return syscall(SYSCALL_GETSOCKOPT, &ret, fd, layer, number, (uint64_t)buffer, (uint64_t)size);
+	}
 
 	int Sysdeps<InetConfigured>::operator()(bool *ipv4, bool *ipv6) {
 		// there is no ipv6 support in the kernel currently and no way of checking for configured interfaces
@@ -47,6 +261,71 @@ namespace mlibc {
 		return 0;
 	}
 
+	int Sysdeps<Unlockpt>::operator()(int fd) {
+		int r;
+		// unlockpt is a no-op kernel side, so use this to check for an invalid pty
+		return sysdep<Ioctl>(fd, 0x13376167, nullptr, &r);
+	}
+
+	int Sysdeps<Statfs>::operator()(const char *path, struct statfs *buf) {
+		struct statvfs stvfs;
+		int ret = sysdep<Statvfs>(path, &stvfs);
+		if(ret)
+			return ret;
+
+		buf->f_type = 0; /* statvfs has no f_type */
+		buf->f_blocks = stvfs.f_blocks;
+		buf->f_bfree = stvfs.f_bfree;
+		buf->f_bavail = stvfs.f_bavail;
+		buf->f_files = stvfs.f_files;
+		buf->f_ffree = stvfs.f_ffree;
+		buf->f_fsid.__val[0] = (int)(stvfs.f_fsid & 0xFFFFFFFF);
+		buf->f_fsid.__val[1] = (int)(stvfs.f_fsid >> 32);
+		buf->f_namelen = stvfs.f_namemax;
+		buf->f_flags = stvfs.f_flag;
+		buf->f_bsize  = stvfs.f_frsize;
+		buf->f_frsize = stvfs.f_bsize;
+
+		return 0;
+	}
+
+	int Sysdeps<Fstatfs>::operator()(int fd, struct statfs *buf) {
+		struct statvfs stvfs;
+		int ret = sysdep<Fstatvfs>(fd, &stvfs);
+		if(ret)
+			return ret;
+
+		buf->f_type = 0; /* statvfs has no f_type */
+		buf->f_bsize = stvfs.f_bsize;
+		buf->f_bfree = stvfs.f_bfree;
+		buf->f_bavail = stvfs.f_bavail;
+		buf->f_files = stvfs.f_files;
+		buf->f_ffree = stvfs.f_ffree;
+		buf->f_fsid.__val[0] = (int)(stvfs.f_fsid & 0xFFFFFFFF);
+		buf->f_fsid.__val[1] = (int)(stvfs.f_fsid >> 32);
+		buf->f_namelen = stvfs.f_namemax;
+		buf->f_flags = stvfs.f_flag;
+		buf->f_bsize  = stvfs.f_frsize;
+		buf->f_frsize = stvfs.f_bsize;
+
+		return 0;
+	}
+
+	int Sysdeps<Statvfs>::operator()(const char *path, struct statvfs *out) {
+		long r;
+		return syscall(SYSCALL_FSTATVFSAT, &r, AT_FDCWD, (uint64_t)path, (uint64_t)out, 0);
+	}
+
+	int Sysdeps<Fstatvfs>::operator()(int fd, struct statvfs *out) {
+		long r;
+		return syscall(SYSCALL_FSTATVFS, &r, fd, (uint64_t)out);
+	}
+
+	void Sysdeps<Yield>::operator()() {
+		long r;
+		syscall(SYSCALL_YIELD, &r);
+	}
+
 	int Sysdeps<Readv>::operator()(int fd, const struct iovec *iovs, int iovc, ssize_t *bytes_read) {
 		long r;
 		int error = syscall(SYSCALL_READV, &r, fd, (uint64_t)iovs, iovc);
@@ -489,6 +768,7 @@ namespace mlibc {
 
 	int Sysdeps<SetSockopt>::operator()(int fd, int layer, int number, const void *buffer, socklen_t size) {
 		long ret;
+		mlibc::infoLogger() << "setsockopt: fd " << fd << " layer " << layer << " number " << number << frg::endlog;
 		return syscall(SYSCALL_SETSOCKOPT, &ret, fd, layer, number, (uint64_t)buffer, size);
 	}
 
@@ -562,6 +842,16 @@ namespace mlibc {
 		return sysdep<Ioctl>(fd, TCSETS, (void *)attr, &res);
 	}
 
+	int Sysdeps<Tcgetwinsize>::operator()(int fd, struct winsize *winsz) {
+		int res;
+		return sysdep<Ioctl>(fd, TIOCGWINSZ, (void *)winsz, &res);
+	}
+
+	int Sysdeps<Tcsetwinsize>::operator()(int fd, const struct winsize *winsz) {
+		int res;
+		return sysdep<Ioctl>(fd, TIOCSWINSZ, (void *)winsz, &res);
+	}
+
 	int Sysdeps<Poll>::operator()(struct pollfd *fds, nfds_t count, int timeout, int *num_events) {
 		long ret;
 		long error = syscall(SYSCALL_POLL, &ret, (uint64_t)fds, count, timeout);
@@ -932,4 +1222,13 @@ namespace mlibc {
 		*nanos = ts.tv_nsec;
 		return err;
 	}
+
+	int Sysdeps<ClockGetres>::operator()(int clock, time_t *secs, long *nanos) {
+		struct timespec ts;
+		long ret;
+		int err = syscall(SYSCALL_CLOCK_GETRES, &ret, clock, (uint64_t)&ts);
+		*secs = ts.tv_sec;
+		*nanos = ts.tv_nsec;
+		return err;
+	}
 } // namespace mlibc
diff --git mlibc-clean/sysdeps/astral/include/astral/archctl.h mlibc-workdir/sysdeps/astral/include/astral/archctl.h
index 7e4f2a1..ecc2677 100644
--- mlibc-clean/sysdeps/astral/include/astral/archctl.h
+++ mlibc-workdir/sysdeps/astral/include/astral/archctl.h
@@ -5,6 +5,17 @@
 #define ARCH_CTL_SET_FSBASE 1
 #define ARCH_CTL_GET_GSBASE 2
 #define ARCH_CTL_GET_FSBASE 3
+#define ARCH_CTL_SET_SYSTRACE 4
+#define ARCH_CTL_SET_LDT_ENTRY 5
+
+#define ARCH_CTL_SYSTRACE_OFF 0
+#define ARCH_CTL_SYSTRACE_SELF 1
+#define ARCH_CTL_SYSTRACE_ALL 2
+
+typedef struct {
+	uint64_t entry;
+	uint16_t seg;
+} archctl_ldt_request_t;
 
 #ifdef __cplusplus
 extern "C" {
diff --git mlibc-clean/sysdeps/astral/include/astral/syscall.h mlibc-workdir/sysdeps/astral/include/astral/syscall.h
index a6c4067..f1e0b65 100644
--- mlibc-clean/sysdeps/astral/include/astral/syscall.h
+++ mlibc-workdir/sysdeps/astral/include/astral/syscall.h
@@ -103,6 +103,11 @@
 #define SYSCALL_SYSINFO 96
 #define SYSCALL_WRITEV 97
 #define SYSCALL_READV 98
+#define SYSCALL_YIELD 99
+#define SYSCALL_FSTATVFS 100
+#define SYSCALL_FSTATVFSAT 101
+#define SYSCALL_GETSOCKOPT 102
+#define SYSCALL_CLOCK_GETRES 103
 
 #ifndef __MLIBC_ABI_ONLY
 
diff --git mlibc-clean/sysdeps/astral/include/mlibc/sysdeps.hpp mlibc-workdir/sysdeps/astral/include/mlibc/sysdeps.hpp
index ce91084..e7e9b6d 100644
--- mlibc-clean/sysdeps/astral/include/mlibc/sysdeps.hpp
+++ mlibc-workdir/sysdeps/astral/include/mlibc/sysdeps.hpp
@@ -7,8 +7,25 @@ namespace mlibc {
 struct AstralSysdepTags :
 	SetGroups,
 	GetGroups,
+	Setxattr,
+	Lsetxattr,
+	Fsetxattr,
+	Getxattr,
+	Lgetxattr,
+	Fgetxattr,
+	Listxattr,
+	Llistxattr,
+	Flistxattr,
+	Getifaddrs,
+	IfNameindex,
 	GetSockopt,
 	InetConfigured,
+	Unlockpt,
+	Statfs,
+	Fstatfs,
+	Statvfs,
+	Fstatvfs,
+	Yield,
 	Readv,
 	Writev,
 	Sysinfo,
@@ -85,6 +102,8 @@ struct AstralSysdepTags :
 	Sleep,
 	Tcgetattr,
 	Tcsetattr,
+	Tcgetwinsize,
+	Tcsetwinsize,
 	Poll,
 	Ppoll,
 	Pselect,
@@ -135,6 +154,7 @@ struct AstralSysdepTags :
 	VmUnmap,
 	Isatty,
 	ClockGet,
+	ClockGetres,
 	PrepareStack
 {};