diff --git a/src/new/mod.rs b/src/new/mod.rs
index 2e6b451a99170..078200ae6258c 100644
--- a/src/new/mod.rs
+++ b/src/new/mod.rs
@@ -103,8 +103,8 @@ cfg_if! {
         mod openbsd;
         pub(crate) use openbsd::*;
     } else if #[cfg(target_os = "qurt")] {
-        mod qurt;
-        pub(crate) use qurt::*;
+        pub mod qurt;
+        pub use qurt::*;
     } else if #[cfg(target_os = "redox")] {
         mod redox;
         // pub(crate) use redox::*;
diff --git a/src/new/qurt/dlfcn.rs b/src/new/qurt/dlfcn.rs
new file mode 100644
index 0000000000000..668fcab54c2a5
--- /dev/null
+++ b/src/new/qurt/dlfcn.rs
@@ -0,0 +1,26 @@
+//! Header: `dlfcn.h`
+//!
+//! Dynamic linking functions and constants from Hexagon toolchain.
+
+use crate::prelude::*;
+
+// Values for dlopen `mode`
+pub const RTLD_LAZY: c_int = 1;
+pub const RTLD_NOW: c_int = 2;
+pub const RTLD_GLOBAL: c_int = 0x100;
+pub const RTLD_LOCAL: c_int = 0x200;
+
+// Compatibility constant
+pub const DL_LAZY: c_int = RTLD_LAZY;
+
+// Special handles
+pub const RTLD_NEXT: *mut c_void = -1isize as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = -2isize as *mut c_void;
+pub const RTLD_SELF: *mut c_void = -3isize as *mut c_void;
+
+extern "C" {
+    pub fn dlopen(filename: *const c_char, flag: c_int) -> *mut c_void;
+    pub fn dlclose(handle: *mut c_void) -> c_int;
+    pub fn dlsym(handle: *mut c_void, symbol: *const c_char) -> *mut c_void;
+    pub fn dlerror() -> *mut c_char;
+}
diff --git a/src/new/qurt/fcntl.rs b/src/new/qurt/fcntl.rs
index aa94ffc94ed54..0287292ad2f8e 100644
--- a/src/new/qurt/fcntl.rs
+++ b/src/new/qurt/fcntl.rs
@@ -21,6 +21,9 @@ pub const O_NONBLOCK: c_int = 0x0800;
 pub const O_SYNC: c_int = 0x1000;
 pub const O_FSYNC: c_int = O_SYNC;
 pub const O_DSYNC: c_int = 0x1000;
+pub const O_DIRECTORY: c_int = 0x10000;
+pub const O_NOFOLLOW: c_int = 0x20000;
+pub const O_CLOEXEC: c_int = 0x80000;
 
 // fcntl() commands
 pub const F_DUPFD: c_int = 0;
@@ -31,6 +34,7 @@ pub const F_SETFL: c_int = 4;
 pub const F_GETLK: c_int = 5;
 pub const F_SETLK: c_int = 6;
 pub const F_SETLKW: c_int = 7;
+pub const F_DUPFD_CLOEXEC: c_int = 1030;
 
 // File descriptor flags
 pub const FD_CLOEXEC: c_int = 1;
@@ -43,7 +47,6 @@ pub const F_UNLCK: c_int = 2;
 // Functions
 extern "C" {
     pub fn open(pathname: *const c_char, flags: c_int, ...) -> c_int;
-    pub fn openat(dirfd: c_int, pathname: *const c_char, flags: c_int, ...) -> c_int;
     pub fn creat(pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn fcntl(fd: c_int, cmd: c_int, ...) -> c_int;
 }
diff --git a/src/new/qurt/mod.rs b/src/new/qurt/mod.rs
index b6e1fbbb82148..456b715f019ec 100644
--- a/src/new/qurt/mod.rs
+++ b/src/new/qurt/mod.rs
@@ -6,12 +6,12 @@
 
 use crate::prelude::*;
 
-// Basic C types for QRT
+// Basic C types for QuRT
 pub type intptr_t = isize;
 pub type uintptr_t = usize;
 pub type ptrdiff_t = isize;
 pub type size_t = uintptr_t;
-pub type ssize_t = intptr_t;
+pub type ssize_t = c_int;
 
 // Process and system types
 pub type pid_t = c_int;
@@ -19,15 +19,15 @@ pub type uid_t = c_uint;
 pub type gid_t = c_uint;
 
 // Time types
-pub type time_t = c_longlong;
+pub type time_t = c_long;
 pub type suseconds_t = c_long;
 pub type useconds_t = c_ulong;
 pub type clockid_t = c_int;
 pub type timer_t = *mut c_void;
 
 // File system types
-pub type dev_t = c_ulong;
-pub type ino_t = c_ulong;
+pub type dev_t = c_ulonglong;
+pub type ino_t = c_ulonglong;
 pub type mode_t = c_uint;
 pub type nlink_t = c_uint;
 pub type off_t = c_long;
@@ -83,7 +83,20 @@ pub type va_list = *mut c_char;
 // Additional missing types
 pub type c_schar = i8;
 
-// Division result types
+// Wide character type (hexagon-specific)
+pub type wchar_t = u32;
+
+// Error type (compatible with std expectations)
+pub type errno_t = c_int;
+
+// Resource limit type (for compatibility, not fully supported on QuRT)
+pub type rlim_t = c_ulong;
+
+// Terminal types (for compatibility, not fully supported on QuRT)
+pub type speed_t = c_uint;
+pub type tcflag_t = c_uint;
+
+// Division result types and structures
 s! {
     pub struct div_t {
         pub quot: c_int,
@@ -105,12 +118,8 @@ s! {
         pub st_ino: ino_t,
         pub st_mode: mode_t,
         pub st_nlink: nlink_t,
-        pub st_uid: uid_t,
-        pub st_gid: gid_t,
         pub st_rdev: dev_t,
         pub st_size: off_t,
-        pub st_blksize: blksize_t,
-        pub st_blocks: blkcnt_t,
         pub st_atime: time_t,
         pub st_mtime: time_t,
         pub st_ctime: time_t,
@@ -143,13 +152,197 @@ s! {
         pub it_value: timespec,
     }
 
-    pub struct sigevent {
-        pub sigev_notify: c_int,
-        pub sigev_signo: c_int,
-        pub sigev_value: c_int,
+    pub struct dirent {
+        pub d_ino: c_long,
+        pub d_name: [c_char; 255],
+    }
+
+    pub struct DIR {
+        pub index: c_int,
+        pub entry: dirent,
+    }
+
+    // Terminal I/O structure (for compatibility, limited support on QuRT)
+    pub struct termios {
+        pub c_iflag: tcflag_t,
+        pub c_oflag: tcflag_t,
+        pub c_cflag: tcflag_t,
+        pub c_lflag: tcflag_t,
+        pub c_cc: [c_uchar; 32],
+        pub c_ispeed: speed_t,
+        pub c_ospeed: speed_t,
+    }
+
+    // Resource limit structures (for compatibility, limited support on QuRT)
+    pub struct rlimit {
+        pub rlim_cur: rlim_t,
+        pub rlim_max: rlim_t,
     }
+
+    pub struct rusage {
+        pub ru_utime: timeval,
+        pub ru_stime: timeval,
+        pub ru_maxrss: c_long,
+        pub ru_ixrss: c_long,
+        pub ru_idrss: c_long,
+        pub ru_isrss: c_long,
+        pub ru_minflt: c_long,
+        pub ru_majflt: c_long,
+        pub ru_nswap: c_long,
+        pub ru_inblock: c_long,
+        pub ru_oublock: c_long,
+        pub ru_msgsnd: c_long,
+        pub ru_msgrcv: c_long,
+        pub ru_nsignals: c_long,
+        pub ru_nvcsw: c_long,
+        pub ru_nivcsw: c_long,
+    }
+
+    // File lock structure (for compatibility)
+    pub struct flock {
+        pub l_type: c_short,
+        pub l_whence: c_short,
+        pub l_start: off_t,
+        pub l_len: off_t,
+        pub l_pid: pid_t,
+    }
+}
+
+// Additional pthread constants
+pub const PTHREAD_NAME_LEN: c_int = 16;
+pub const PTHREAD_MAX_THREADS: c_uint = 512;
+pub const PTHREAD_MIN_STACKSIZE: c_int = 512;
+pub const PTHREAD_MAX_STACKSIZE: c_int = 1048576;
+pub const PTHREAD_DEFAULT_STACKSIZE: c_int = 16384;
+pub const PTHREAD_DEFAULT_PRIORITY: c_int = 1;
+pub const PTHREAD_SPINLOCK_UNLOCKED: c_int = 0;
+pub const PTHREAD_SPINLOCK_LOCKED: c_int = 1;
+
+// Additional time constants
+pub const TIME_CONV_SCLK_FREQ: c_int = 19200000;
+pub const CLOCK_MONOTONIC_RAW: clockid_t = 4;
+pub const CLOCK_REALTIME_COARSE: clockid_t = 5;
+pub const CLOCK_MONOTONIC_COARSE: clockid_t = 6;
+pub const CLOCK_BOOTTIME: clockid_t = 7;
+
+// Stdio constants
+pub const L_tmpnam: c_uint = 260;
+pub const TMP_MAX: c_uint = 25;
+pub const FOPEN_MAX: c_uint = 20;
+
+// Error constants
+pub const EOK: c_int = 0;
+
+// Semaphore constants
+pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;
+
+// Page size constants (hexagon-specific)
+pub const PAGESIZE: size_t = 4096;
+pub const PAGE_SIZE: size_t = 4096;
+
+// Directory entry types (hexagon-specific)
+pub const DT_UNKNOWN: c_uchar = 0;
+pub const DT_FIFO: c_uchar = 1;
+pub const DT_CHR: c_uchar = 2;
+pub const DT_DIR: c_uchar = 4;
+pub const DT_BLK: c_uchar = 6;
+pub const DT_REG: c_uchar = 8;
+pub const DT_LNK: c_uchar = 10;
+pub const DT_SOCK: c_uchar = 12;
+
+// Directory functions (dirent.h)
+extern "C" {
+    pub fn opendir(name: *const c_char) -> *mut DIR;
+    pub fn readdir(dirp: *mut DIR) -> *mut dirent;
+    pub fn closedir(dirp: *const DIR) -> c_int;
+    pub fn mkdir(path: *const c_char, mode: mode_t) -> c_int;
+}
+
+// Additional pthread functions
+extern "C" {
+    pub fn pthread_attr_getstack(
+        attr: *const pthread_attr_t,
+        stackaddr: *mut *mut c_void,
+        stacksize: *mut size_t,
+    ) -> c_int;
+    pub fn pthread_attr_setstack(
+        attr: *mut pthread_attr_t,
+        stackaddr: *mut c_void,
+        stacksize: size_t,
+    ) -> c_int;
+}
+
+// Additional time functions
+extern "C" {
+    pub fn clock_getcpuclockid(pid: pid_t, clock_id: *mut clockid_t) -> c_int;
+}
+
+// POSIX semaphore functions
+extern "C" {
+    pub fn sem_open(name: *const c_char, oflag: c_int, ...) -> *mut sem_t;
+    pub fn sem_close(sem: *mut sem_t) -> c_int;
+    pub fn sem_unlink(name: *const c_char) -> c_int;
 }
 
+// Additional stdlib functions
+extern "C" {
+    pub fn aligned_alloc(alignment: size_t, size: size_t) -> *mut c_void;
+}
+
+// String functions (string.h)
+extern "C" {
+    pub fn strlen(s: *const c_char) -> size_t;
+    pub fn strcpy(dest: *mut c_char, src: *const c_char) -> *mut c_char;
+    pub fn strncpy(dest: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
+    pub fn strcat(dest: *mut c_char, src: *const c_char) -> *mut c_char;
+    pub fn strncat(dest: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
+    pub fn strcmp(s1: *const c_char, s2: *const c_char) -> c_int;
+    pub fn strncmp(s1: *const c_char, s2: *const c_char, n: size_t) -> c_int;
+    pub fn strcoll(s1: *const c_char, s2: *const c_char) -> c_int;
+    pub fn strxfrm(dest: *mut c_char, src: *const c_char, n: size_t) -> size_t;
+    pub fn strchr(s: *const c_char, c: c_int) -> *mut c_char;
+    pub fn strrchr(s: *const c_char, c: c_int) -> *mut c_char;
+    pub fn strspn(s: *const c_char, accept: *const c_char) -> size_t;
+    pub fn strcspn(s: *const c_char, reject: *const c_char) -> size_t;
+    pub fn strpbrk(s: *const c_char, accept: *const c_char) -> *mut c_char;
+    pub fn strstr(haystack: *const c_char, needle: *const c_char) -> *mut c_char;
+    pub fn strtok(s: *mut c_char, delim: *const c_char) -> *mut c_char;
+    pub fn strerror(errnum: c_int) -> *mut c_char;
+    pub fn memchr(s: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn memcmp(s1: *const c_void, s2: *const c_void, n: size_t) -> c_int;
+    pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
+    pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
+    pub fn memset(s: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
+}
+
+// Additional unistd functions
+extern "C" {
+    pub fn fork() -> pid_t;
+    pub fn execve(
+        filename: *const c_char,
+        argv: *const *const c_char,
+        envp: *const *const c_char,
+    ) -> c_int;
+}
+
+// Character classification functions (ctype.h)
+extern "C" {
+    pub fn isalnum(c: c_int) -> c_int;
+    pub fn isalpha(c: c_int) -> c_int;
+    pub fn iscntrl(c: c_int) -> c_int;
+    pub fn isdigit(c: c_int) -> c_int;
+    pub fn isgraph(c: c_int) -> c_int;
+    pub fn islower(c: c_int) -> c_int;
+    pub fn isprint(c: c_int) -> c_int;
+    pub fn ispunct(c: c_int) -> c_int;
+    pub fn isspace(c: c_int) -> c_int;
+    pub fn isupper(c: c_int) -> c_int;
+    pub fn isxdigit(c: c_int) -> c_int;
+    pub fn tolower(c: c_int) -> c_int;
+    pub fn toupper(c: c_int) -> c_int;
+}
+
+pub(crate) mod dlfcn;
 pub(crate) mod errno;
 pub(crate) mod fcntl;
 pub(crate) mod limits;
@@ -161,3 +354,20 @@ pub(crate) mod stdlib;
 pub(crate) mod sys;
 pub(crate) mod time;
 pub(crate) mod unistd;
+
+// Re-export public items from submodules
+pub use dlfcn::*;
+pub use errno::*;
+pub use fcntl::*;
+pub use limits::*;
+pub use pthread::*;
+pub use semaphore::*;
+pub use signal::*;
+pub use stdio::*;
+pub use stdlib::*;
+pub use sys::mman::*;
+pub use sys::sched::*;
+pub use sys::stat::*;
+pub use sys::types::*;
+pub use time::*;
+pub use unistd::*;
diff --git a/src/new/qurt/pthread.rs b/src/new/qurt/pthread.rs
index b9859f05380f9..543f7874c3dc6 100644
--- a/src/new/qurt/pthread.rs
+++ b/src/new/qurt/pthread.rs
@@ -4,23 +4,6 @@
 
 use super::*;
 use crate::prelude::*;
-use crate::{
-    cpu_set_t,
-    pthread_attr_t,
-    pthread_barrier_t,
-    pthread_barrierattr_t,
-    pthread_cond_t,
-    pthread_condattr_t,
-    pthread_key_t,
-    pthread_mutex_t,
-    pthread_mutexattr_t,
-    pthread_once_t,
-    pthread_rwlock_t,
-    pthread_rwlockattr_t,
-    pthread_spinlock_t,
-    pthread_t,
-    timespec,
-};
 
 // Thread creation attributes
 pub const PTHREAD_CREATE_JOINABLE: c_int = 0;
@@ -41,11 +24,6 @@ pub const PTHREAD_PRIO_PROTECT: c_int = 2;
 pub const PTHREAD_MIN_PRIORITY: c_int = 0;
 pub const PTHREAD_MAX_PRIORITY: c_int = 255;
 
-// Scheduling policies
-pub const SCHED_OTHER: c_int = 0;
-pub const SCHED_FIFO: c_int = 1;
-pub const SCHED_RR: c_int = 2;
-
 // Initializer constants
 pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = 0xFFFFFFFF;
 pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = 0xFFFFFFFF;
@@ -117,6 +95,7 @@ extern "C" {
     // Condition variable attributes
     pub fn pthread_condattr_init(attr: *mut pthread_condattr_t) -> c_int;
     pub fn pthread_condattr_destroy(attr: *mut pthread_condattr_t) -> c_int;
+    pub fn pthread_condattr_setclock(attr: *mut pthread_condattr_t, clock_id: clockid_t) -> c_int;
 
     // Thread-local storage
     pub fn pthread_key_create(
diff --git a/src/new/qurt/signal.rs b/src/new/qurt/signal.rs
index b0180c5aa0382..f525fa15ff29e 100644
--- a/src/new/qurt/signal.rs
+++ b/src/new/qurt/signal.rs
@@ -41,13 +41,54 @@ pub const SIG_DFL: sighandler_t = 0 as sighandler_t;
 pub const SIG_IGN: sighandler_t = 1 as sighandler_t;
 pub const SIG_ERR: sighandler_t = !0 as sighandler_t;
 
-// Signal mask operations
-pub const SIG_BLOCK: c_int = 0;
-pub const SIG_UNBLOCK: c_int = 1;
-pub const SIG_SETMASK: c_int = 2;
+// Signal mask operations (QuRT uses different values than Linux)
+pub const SIG_BLOCK: c_int = 1;
+pub const SIG_UNBLOCK: c_int = 2;
+pub const SIG_SETMASK: c_int = 3;
+
+// QuRT-specific signal constants
+pub const POSIX_MSG: c_int = 7;
+pub const POSIX_NOTIF: c_int = 8;
+pub const SIGRTMIN: c_int = 10;
+pub const SIGRTMAX: c_int = 32;
+
+// Notification types (from QuRT signal.h)
+pub const SIGEV_NONE: c_int = 0;
+pub const SIGEV_SIGNAL: c_int = 1;
+pub const SIGEV_THREAD: c_int = 2;
+pub const SA_SIGINFO: c_int = 1;
 
 pub type sighandler_t = size_t;
 
+// Signal structures based on QuRT SDK headers
+s! {
+    pub struct sigval {
+        pub sival_int: c_int,
+        pub sival_ptr: *mut c_void,
+    }
+
+    pub struct sigevent {
+        pub sigev_notify: c_int,
+        pub sigev_signo: c_int,
+        pub sigev_value: sigval,
+        pub sigev_notify_function: Option<extern "C" fn(sigval)>,
+        pub sigev_notify_attributes: *mut pthread_attr_t,
+    }
+
+    pub struct siginfo_t {
+        pub si_signo: c_int,
+        pub si_code: c_int,
+        pub si_value: sigval,
+    }
+
+    pub struct sigaction {
+        pub sa_handler: Option<extern "C" fn(c_int)>,
+        pub sa_mask: sigset_t,
+        pub sa_flags: c_int,
+        pub sa_sigaction: Option<extern "C" fn(c_int, *mut siginfo_t, *mut c_void)>,
+    }
+}
+
 extern "C" {
     pub fn signal(sig: c_int, handler: sighandler_t) -> sighandler_t;
     pub fn kill(pid: pid_t, sig: c_int) -> c_int;
@@ -64,4 +105,13 @@ extern "C" {
     pub fn sigprocmask(how: c_int, set: *const sigset_t, oldset: *mut sigset_t) -> c_int;
     pub fn sigpending(set: *mut sigset_t) -> c_int;
     pub fn sigsuspend(mask: *const sigset_t) -> c_int;
+
+    // QuRT-specific signal functions
+    pub fn sigwait(set: *const sigset_t, sig: *mut c_int) -> c_int;
+    pub fn _sigaction(sig: c_int, act: *const sigaction, oact: *mut sigaction) -> c_int;
+    pub fn sigtimedwait(
+        set: *const sigset_t,
+        info: *mut siginfo_t,
+        timeout: *const timespec,
+    ) -> c_int;
 }
diff --git a/src/new/qurt/stdio.rs b/src/new/qurt/stdio.rs
index fbfc94df66dec..7130717764e8a 100644
--- a/src/new/qurt/stdio.rs
+++ b/src/new/qurt/stdio.rs
@@ -3,11 +3,6 @@
 use super::*;
 use crate::prelude::*;
 
-// File position constants
-pub const SEEK_SET: c_int = 0;
-pub const SEEK_CUR: c_int = 1;
-pub const SEEK_END: c_int = 2;
-
 // Buffer size
 pub const BUFSIZ: c_uint = 1024;
 pub const FILENAME_MAX: c_uint = 260;
diff --git a/src/new/qurt/sys/mman.rs b/src/new/qurt/sys/mman.rs
new file mode 100644
index 0000000000000..a0a3b3aad8fe7
--- /dev/null
+++ b/src/new/qurt/sys/mman.rs
@@ -0,0 +1,55 @@
+//! Header: `sys/mman.h`
+//!
+//! Memory mapping functions and constants from Hexagon toolchain.
+
+use super::super::*;
+use crate::prelude::*;
+
+// Memory protection constants
+pub const PROT_NONE: c_int = 0x00;
+pub const PROT_READ: c_int = 0x01;
+pub const PROT_WRITE: c_int = 0x02;
+pub const PROT_EXEC: c_int = 0x04;
+
+// Memory mapping constants
+pub const MAP_SHARED: c_int = 0x0001;
+pub const MAP_PRIVATE: c_int = 0x0002;
+pub const MAP_FIXED: c_int = 0x0010;
+pub const MAP_ANON: c_int = 0x1000;
+pub const MAP_ANONYMOUS: c_int = MAP_ANON;
+pub const MAP_FILE: c_int = 0x0000;
+pub const MAP_RENAME: c_int = 0x0020;
+pub const MAP_NORESERVE: c_int = 0x0040;
+pub const MAP_INHERIT: c_int = 0x0080;
+pub const MAP_HASSEMAPHORE: c_int = 0x0200;
+pub const MAP_TRYFIXED: c_int = 0x0400;
+pub const MAP_WIRED: c_int = 0x0800;
+
+pub const MAP_FAILED: *mut c_void = !0 as *mut c_void;
+
+// Memory sync constants
+pub const MS_ASYNC: c_int = 0x01;
+pub const MS_INVALIDATE: c_int = 0x02;
+pub const MS_SYNC: c_int = 0x04;
+
+// Memory lock constants
+pub const MCL_CURRENT: c_int = 0x01;
+pub const MCL_FUTURE: c_int = 0x02;
+
+extern "C" {
+    pub fn mmap(
+        addr: *mut c_void,
+        len: size_t,
+        prot: c_int,
+        flags: c_int,
+        fd: c_int,
+        offset: off_t,
+    ) -> *mut c_void;
+    pub fn munmap(addr: *mut c_void, len: size_t) -> c_int;
+    pub fn mprotect(addr: *mut c_void, len: size_t, prot: c_int) -> c_int;
+    pub fn mlock(addr: *const c_void, len: size_t) -> c_int;
+    pub fn munlock(addr: *const c_void, len: size_t) -> c_int;
+    pub fn mlockall(flags: c_int) -> c_int;
+    pub fn munlockall() -> c_int;
+    pub fn msync(addr: *mut c_void, len: size_t, flags: c_int) -> c_int;
+}
diff --git a/src/new/qurt/sys/mod.rs b/src/new/qurt/sys/mod.rs
index 5c4547cb7895f..f9ef6a435fb48 100644
--- a/src/new/qurt/sys/mod.rs
+++ b/src/new/qurt/sys/mod.rs
@@ -1,4 +1,6 @@
 //! System headers (`sys/*`)
 
+pub(crate) mod mman;
+pub(crate) mod sched;
 pub(crate) mod stat;
 pub(crate) mod types;
diff --git a/src/new/qurt/sys/sched.rs b/src/new/qurt/sys/sched.rs
new file mode 100644
index 0000000000000..56fed5ba00890
--- /dev/null
+++ b/src/new/qurt/sys/sched.rs
@@ -0,0 +1,24 @@
+//! Header: `sys/sched.h`
+//!
+//! QuRT scheduling parameters and functions.
+
+use crate::prelude::*;
+
+// Scheduling policies (from QuRT sys/sched.h)
+pub const SCHED_FIFO: c_int = 0;
+pub const SCHED_RR: c_int = 1;
+pub const SCHED_SPORADIC: c_int = 2;
+pub const SCHED_OTHER: c_int = 3;
+
+s! {
+    pub struct sched_param {
+        pub unimplemented: *mut c_void,
+        pub sched_priority: c_int,
+    }
+}
+
+extern "C" {
+    pub fn sched_yield() -> c_int;
+    pub fn sched_get_priority_max(policy: c_int) -> c_int;
+    pub fn sched_get_priority_min(policy: c_int) -> c_int;
+}
diff --git a/src/new/qurt/sys/stat.rs b/src/new/qurt/sys/stat.rs
index 25ffa76c64909..a8ee211eb4e83 100644
--- a/src/new/qurt/sys/stat.rs
+++ b/src/new/qurt/sys/stat.rs
@@ -33,10 +33,4 @@ pub const S_IXOTH: mode_t = 0o0001;
 extern "C" {
     pub fn stat(pathname: *const c_char, statbuf: *mut stat) -> c_int;
     pub fn fstat(fd: c_int, statbuf: *mut stat) -> c_int;
-    pub fn lstat(pathname: *const c_char, statbuf: *mut stat) -> c_int;
-    pub fn chmod(pathname: *const c_char, mode: mode_t) -> c_int;
-    pub fn fchmod(fd: c_int, mode: mode_t) -> c_int;
-    pub fn mkdir(pathname: *const c_char, mode: mode_t) -> c_int;
-    pub fn mkfifo(pathname: *const c_char, mode: mode_t) -> c_int;
-    pub fn umask(mask: mode_t) -> mode_t;
 }
diff --git a/src/new/qurt/time.rs b/src/new/qurt/time.rs
index e3535fd5bd82d..ab6f4453dbeab 100644
--- a/src/new/qurt/time.rs
+++ b/src/new/qurt/time.rs
@@ -6,15 +6,12 @@ use crate::prelude::*;
 // Clock types
 pub const CLOCK_REALTIME: clockid_t = 0;
 pub const CLOCK_MONOTONIC: clockid_t = 1;
-pub const CLOCK_PROCESS_CPUTIME_ID: clockid_t = 2;
-pub const CLOCK_THREAD_CPUTIME_ID: clockid_t = 3;
-
-// Timer flags
-pub const TIMER_ABSTIME: c_int = 1;
+pub const CLOCK_THREAD_CPUTIME_ID: clockid_t = 2;
+pub const CLOCK_PROCESS_CPUTIME_ID: clockid_t = 3;
 
 extern "C" {
-    // Time functions
     pub fn time(tloc: *mut time_t) -> time_t;
+    pub fn clock() -> clock_t;
     pub fn difftime(time1: time_t, time0: time_t) -> c_double;
     pub fn mktime(tm: *mut tm) -> time_t;
     pub fn gmtime(timep: *const time_t) -> *mut tm;
@@ -31,22 +28,7 @@ extern "C" {
         format: *const c_char,
         timeptr: *const tm,
     ) -> size_t;
-
-    // High-resolution time functions
+    pub fn strptime(s: *const c_char, format: *const c_char, tm: *mut tm) -> *mut c_char;
     pub fn clock_gettime(clk_id: clockid_t, tp: *mut timespec) -> c_int;
-    pub fn clock_settime(clk_id: clockid_t, tp: *const timespec) -> c_int;
-    pub fn clock_getres(clk_id: clockid_t, res: *mut timespec) -> c_int;
     pub fn nanosleep(req: *const timespec, rem: *mut timespec) -> c_int;
-
-    // Timer functions
-    pub fn timer_create(clockid: clockid_t, sevp: *mut sigevent, timerid: *mut timer_t) -> c_int;
-    pub fn timer_delete(timerid: timer_t) -> c_int;
-    pub fn timer_settime(
-        timerid: timer_t,
-        flags: c_int,
-        new_value: *const itimerspec,
-        old_value: *mut itimerspec,
-    ) -> c_int;
-    pub fn timer_gettime(timerid: timer_t, curr_value: *mut itimerspec) -> c_int;
-    pub fn timer_getoverrun(timerid: timer_t) -> c_int;
 }
diff --git a/src/new/qurt/unistd.rs b/src/new/qurt/unistd.rs
index 3faced7d30307..b973b60e66761 100644
--- a/src/new/qurt/unistd.rs
+++ b/src/new/qurt/unistd.rs
@@ -19,40 +19,230 @@ pub const SEEK_SET: c_int = 0;
 pub const SEEK_CUR: c_int = 1;
 pub const SEEK_END: c_int = 2;
 
+// pathconf constants (from bits/confname.h)
+pub const _PC_LINK_MAX: c_int = 0;
+pub const _PC_MAX_CANON: c_int = 1;
+pub const _PC_MAX_INPUT: c_int = 2;
+pub const _PC_NAME_MAX: c_int = 3;
+pub const _PC_PATH_MAX: c_int = 4;
+pub const _PC_PIPE_BUF: c_int = 5;
+pub const _PC_CHOWN_RESTRICTED: c_int = 6;
+pub const _PC_NO_TRUNC: c_int = 7;
+pub const _PC_VDISABLE: c_int = 8;
+pub const _PC_SYNC_IO: c_int = 9;
+pub const _PC_ASYNC_IO: c_int = 10;
+pub const _PC_PRIO_IO: c_int = 11;
+pub const _PC_SOCK_MAXBUF: c_int = 12;
+pub const _PC_FILESIZEBITS: c_int = 13;
+pub const _PC_REC_INCR_XFER_SIZE: c_int = 14;
+pub const _PC_REC_MAX_XFER_SIZE: c_int = 15;
+pub const _PC_REC_MIN_XFER_SIZE: c_int = 16;
+pub const _PC_REC_XFER_ALIGN: c_int = 17;
+pub const _PC_ALLOC_SIZE_MIN: c_int = 18;
+pub const _PC_SYMLINK_MAX: c_int = 19;
+pub const _PC_2_SYMLINKS: c_int = 20;
+
+// sysconf constants (from bits/confname.h)
+pub const _SC_ARG_MAX: c_int = 0;
+pub const _SC_CHILD_MAX: c_int = 1;
+pub const _SC_CLK_TCK: c_int = 2;
+pub const _SC_NGROUPS_MAX: c_int = 3;
+pub const _SC_OPEN_MAX: c_int = 4;
+pub const _SC_STREAM_MAX: c_int = 5;
+pub const _SC_TZNAME_MAX: c_int = 6;
+pub const _SC_JOB_CONTROL: c_int = 7;
+pub const _SC_SAVED_IDS: c_int = 8;
+pub const _SC_REALTIME_SIGNALS: c_int = 9;
+pub const _SC_PRIORITY_SCHEDULING: c_int = 10;
+pub const _SC_TIMERS: c_int = 11;
+pub const _SC_ASYNCHRONOUS_IO: c_int = 12;
+pub const _SC_PRIORITIZED_IO: c_int = 13;
+pub const _SC_SYNCHRONIZED_IO: c_int = 14;
+pub const _SC_FSYNC: c_int = 15;
+pub const _SC_MAPPED_FILES: c_int = 16;
+pub const _SC_MEMLOCK: c_int = 17;
+pub const _SC_MEMLOCK_RANGE: c_int = 18;
+pub const _SC_MEMORY_PROTECTION: c_int = 19;
+pub const _SC_MESSAGE_PASSING: c_int = 20;
+pub const _SC_SEMAPHORES: c_int = 21;
+pub const _SC_SHARED_MEMORY_OBJECTS: c_int = 22;
+pub const _SC_AIO_LISTIO_MAX: c_int = 23;
+pub const _SC_AIO_MAX: c_int = 24;
+pub const _SC_AIO_PRIO_DELTA_MAX: c_int = 25;
+pub const _SC_DELAYTIMER_MAX: c_int = 26;
+pub const _SC_MQ_OPEN_MAX: c_int = 27;
+pub const _SC_MQ_PRIO_MAX: c_int = 28;
+pub const _SC_VERSION: c_int = 29;
+pub const _SC_PAGESIZE: c_int = 30;
+pub const _SC_PAGE_SIZE: c_int = _SC_PAGESIZE;
+pub const _SC_RTSIG_MAX: c_int = 31;
+pub const _SC_SEM_NSEMS_MAX: c_int = 32;
+pub const _SC_SEM_VALUE_MAX: c_int = 33;
+pub const _SC_SIGQUEUE_MAX: c_int = 34;
+pub const _SC_TIMER_MAX: c_int = 35;
+pub const _SC_BC_BASE_MAX: c_int = 36;
+pub const _SC_BC_DIM_MAX: c_int = 37;
+pub const _SC_BC_SCALE_MAX: c_int = 38;
+pub const _SC_BC_STRING_MAX: c_int = 39;
+pub const _SC_COLL_WEIGHTS_MAX: c_int = 40;
+pub const _SC_EQUIV_CLASS_MAX: c_int = 41;
+pub const _SC_EXPR_NEST_MAX: c_int = 42;
+pub const _SC_LINE_MAX: c_int = 43;
+pub const _SC_RE_DUP_MAX: c_int = 44;
+pub const _SC_CHARCLASS_NAME_MAX: c_int = 45;
+pub const _SC_2_VERSION: c_int = 46;
+pub const _SC_2_C_BIND: c_int = 47;
+pub const _SC_2_C_DEV: c_int = 48;
+pub const _SC_2_FORT_DEV: c_int = 49;
+pub const _SC_2_FORT_RUN: c_int = 50;
+pub const _SC_2_SW_DEV: c_int = 51;
+pub const _SC_2_LOCALEDEF: c_int = 52;
+pub const _SC_PII: c_int = 53;
+pub const _SC_PII_XTI: c_int = 54;
+pub const _SC_PII_SOCKET: c_int = 55;
+pub const _SC_PII_INTERNET: c_int = 56;
+pub const _SC_PII_OSI: c_int = 57;
+pub const _SC_POLL: c_int = 58;
+pub const _SC_SELECT: c_int = 59;
+pub const _SC_UIO_MAXIOV: c_int = 60;
+pub const _SC_IOV_MAX: c_int = _SC_UIO_MAXIOV;
+pub const _SC_PII_INTERNET_STREAM: c_int = 61;
+pub const _SC_PII_INTERNET_DGRAM: c_int = 62;
+pub const _SC_PII_OSI_COTS: c_int = 63;
+pub const _SC_PII_OSI_CLTS: c_int = 64;
+pub const _SC_PII_OSI_M: c_int = 65;
+pub const _SC_T_IOV_MAX: c_int = 66;
+pub const _SC_THREADS: c_int = 67;
+pub const _SC_THREAD_SAFE_FUNCTIONS: c_int = 68;
+pub const _SC_GETGR_R_SIZE_MAX: c_int = 69;
+pub const _SC_GETPW_R_SIZE_MAX: c_int = 70;
+pub const _SC_LOGIN_NAME_MAX: c_int = 71;
+pub const _SC_TTY_NAME_MAX: c_int = 72;
+pub const _SC_THREAD_DESTRUCTOR_ITERATIONS: c_int = 73;
+pub const _SC_THREAD_KEYS_MAX: c_int = 74;
+pub const _SC_THREAD_STACK_MIN: c_int = 75;
+pub const _SC_THREAD_THREADS_MAX: c_int = 76;
+pub const _SC_THREAD_ATTR_STACKADDR: c_int = 77;
+pub const _SC_THREAD_ATTR_STACKSIZE: c_int = 78;
+pub const _SC_THREAD_PRIORITY_SCHEDULING: c_int = 79;
+pub const _SC_THREAD_PRIO_INHERIT: c_int = 80;
+pub const _SC_THREAD_PRIO_PROTECT: c_int = 81;
+pub const _SC_THREAD_PROCESS_SHARED: c_int = 82;
+pub const _SC_NPROCESSORS_CONF: c_int = 83;
+pub const _SC_NPROCESSORS_ONLN: c_int = 84;
+pub const _SC_PHYS_PAGES: c_int = 85;
+pub const _SC_AVPHYS_PAGES: c_int = 86;
+pub const _SC_ATEXIT_MAX: c_int = 87;
+pub const _SC_PASS_MAX: c_int = 88;
+pub const _SC_XOPEN_VERSION: c_int = 89;
+pub const _SC_XOPEN_XCU_VERSION: c_int = 90;
+pub const _SC_XOPEN_UNIX: c_int = 91;
+pub const _SC_XOPEN_CRYPT: c_int = 92;
+pub const _SC_XOPEN_ENH_I18N: c_int = 93;
+pub const _SC_XOPEN_SHM: c_int = 94;
+pub const _SC_2_CHAR_TERM: c_int = 95;
+pub const _SC_2_C_VERSION: c_int = 96;
+pub const _SC_2_UPE: c_int = 97;
+pub const _SC_XOPEN_XPG2: c_int = 98;
+pub const _SC_XOPEN_XPG3: c_int = 99;
+pub const _SC_XOPEN_XPG4: c_int = 100;
+pub const _SC_CHAR_BIT: c_int = 101;
+pub const _SC_CHAR_MAX: c_int = 102;
+pub const _SC_CHAR_MIN: c_int = 103;
+pub const _SC_INT_MAX: c_int = 104;
+pub const _SC_INT_MIN: c_int = 105;
+pub const _SC_LONG_BIT: c_int = 106;
+pub const _SC_WORD_BIT: c_int = 107;
+pub const _SC_MB_LEN_MAX: c_int = 108;
+pub const _SC_NZERO: c_int = 109;
+pub const _SC_SSIZE_MAX: c_int = 110;
+pub const _SC_SCHAR_MAX: c_int = 111;
+pub const _SC_SCHAR_MIN: c_int = 112;
+pub const _SC_SHRT_MAX: c_int = 113;
+pub const _SC_SHRT_MIN: c_int = 114;
+pub const _SC_UCHAR_MAX: c_int = 115;
+pub const _SC_UINT_MAX: c_int = 116;
+pub const _SC_ULONG_MAX: c_int = 117;
+pub const _SC_USHRT_MAX: c_int = 118;
+pub const _SC_NL_ARGMAX: c_int = 119;
+pub const _SC_NL_LANGMAX: c_int = 120;
+pub const _SC_NL_MSGMAX: c_int = 121;
+pub const _SC_NL_NMAX: c_int = 122;
+pub const _SC_NL_SETMAX: c_int = 123;
+pub const _SC_NL_TEXTMAX: c_int = 124;
+pub const _SC_XBS5_ILP32_OFF32: c_int = 125;
+pub const _SC_XBS5_ILP32_OFFBIG: c_int = 126;
+pub const _SC_XBS5_LP64_OFF64: c_int = 127;
+pub const _SC_XBS5_LPBIG_OFFBIG: c_int = 128;
+pub const _SC_XOPEN_LEGACY: c_int = 129;
+pub const _SC_XOPEN_REALTIME: c_int = 130;
+pub const _SC_XOPEN_REALTIME_THREADS: c_int = 131;
+pub const _SC_ADVISORY_INFO: c_int = 132;
+pub const _SC_BARRIERS: c_int = 133;
+pub const _SC_CLOCK_SELECTION: c_int = 137;
+pub const _SC_CPUTIME: c_int = 138;
+pub const _SC_THREAD_CPUTIME: c_int = 139;
+pub const _SC_MONOTONIC_CLOCK: c_int = 149;
+pub const _SC_READER_WRITER_LOCKS: c_int = 153;
+pub const _SC_SPIN_LOCKS: c_int = 154;
+pub const _SC_REGEXP: c_int = 155;
+pub const _SC_SHELL: c_int = 157;
+pub const _SC_SPAWN: c_int = 159;
+pub const _SC_SPORADIC_SERVER: c_int = 160;
+pub const _SC_THREAD_SPORADIC_SERVER: c_int = 161;
+pub const _SC_TIMEOUTS: c_int = 164;
+pub const _SC_TYPED_MEMORY_OBJECTS: c_int = 165;
+pub const _SC_2_PBS: c_int = 168;
+pub const _SC_2_PBS_ACCOUNTING: c_int = 169;
+pub const _SC_2_PBS_LOCATE: c_int = 170;
+pub const _SC_2_PBS_MESSAGE: c_int = 171;
+pub const _SC_2_PBS_TRACK: c_int = 172;
+pub const _SC_SYMLOOP_MAX: c_int = 173;
+pub const _SC_2_PBS_CHECKPOINT: c_int = 175;
+pub const _SC_V6_ILP32_OFF32: c_int = 176;
+pub const _SC_V6_ILP32_OFFBIG: c_int = 177;
+pub const _SC_V6_LP64_OFF64: c_int = 178;
+pub const _SC_V6_LPBIG_OFFBIG: c_int = 179;
+pub const _SC_HOST_NAME_MAX: c_int = 180;
+pub const _SC_TRACE: c_int = 181;
+pub const _SC_TRACE_EVENT_FILTER: c_int = 182;
+pub const _SC_TRACE_INHERIT: c_int = 183;
+pub const _SC_TRACE_LOG: c_int = 184;
+pub const _SC_IPV6: c_int = 235;
+pub const _SC_RAW_SOCKETS: c_int = 236;
+pub const _SC_V7_ILP32_OFF32: c_int = 237;
+pub const _SC_V7_ILP32_OFFBIG: c_int = 238;
+pub const _SC_V7_LP64_OFF64: c_int = 239;
+pub const _SC_V7_LPBIG_OFFBIG: c_int = 240;
+pub const _SC_SS_REPL_MAX: c_int = 241;
+pub const _SC_TRACE_EVENT_NAME_MAX: c_int = 242;
+pub const _SC_TRACE_NAME_MAX: c_int = 243;
+pub const _SC_TRACE_SYS_MAX: c_int = 244;
+pub const _SC_TRACE_USER_EVENT_MAX: c_int = 245;
+pub const _SC_XOPEN_STREAMS: c_int = 246;
+pub const _SC_THREAD_ROBUST_PRIO_INHERIT: c_int = 247;
+pub const _SC_THREAD_ROBUST_PRIO_PROTECT: c_int = 248;
+
 extern "C" {
     // File operations
     pub fn access(pathname: *const c_char, mode: c_int) -> c_int;
     pub fn close(fd: c_int) -> c_int;
-    pub fn dup(oldfd: c_int) -> c_int;
-    pub fn dup2(oldfd: c_int, newfd: c_int) -> c_int;
     pub fn lseek(fd: c_int, offset: off_t, whence: c_int) -> off_t;
     pub fn read(fd: c_int, buf: *mut c_void, count: size_t) -> ssize_t;
     pub fn write(fd: c_int, buf: *const c_void, count: size_t) -> ssize_t;
+    pub fn ftruncate(fd: c_int, length: off_t) -> c_int;
+    pub fn unlink(pathname: *const c_char) -> c_int;
+
+    // Directory operations
+    pub fn getcwd(buf: *mut c_char, size: size_t) -> *mut c_char;
+    pub fn rmdir(pathname: *const c_char) -> c_int;
 
     // Process operations
     pub fn getpid() -> pid_t;
-    pub fn getppid() -> pid_t;
-    pub fn getuid() -> uid_t;
-    pub fn geteuid() -> uid_t;
-    pub fn getgid() -> gid_t;
-    pub fn getegid() -> gid_t;
-    pub fn getpgid(pid: pid_t) -> pid_t;
-    pub fn getpgrp() -> pid_t;
-    pub fn setpgrp() -> pid_t;
-    pub fn seteuid(uid: uid_t) -> c_int;
-    pub fn setuid(uid: uid_t) -> c_int;
-    pub fn setpgid(pid: pid_t, pgid: pid_t) -> c_int;
-    pub fn setsid() -> pid_t;
-
-    // File synchronization
-    pub fn fsync(fd: c_int) -> c_int;
 
     // Sleep functions
     pub fn sleep(seconds: c_uint) -> c_uint;
-    pub fn usleep(usec: useconds_t) -> c_int;
 
     // System configuration
     pub fn sysconf(name: c_int) -> c_long;
-    pub fn pathconf(path: *const c_char, name: c_int) -> c_long;
-    pub fn fpathconf(fd: c_int, name: c_int) -> c_long;
 }
diff --git a/src/qurt/hexagon.rs b/src/qurt/hexagon.rs
deleted file mode 100644
index bc89521c3de04..0000000000000
--- a/src/qurt/hexagon.rs
+++ /dev/null
@@ -1,340 +0,0 @@
-use crate::prelude::*;
-
-pub type wchar_t = u32;
-
-pub type cpu_set_t = c_uint;
-
-s! {
-    pub struct stat {
-        pub st_dev: crate::dev_t,
-        pub st_ino: crate::ino_t,
-        pub st_mode: crate::mode_t,
-        pub st_nlink: crate::nlink_t,
-        pub st_uid: crate::uid_t,
-        pub st_gid: crate::gid_t,
-        pub st_rdev: crate::dev_t,
-        pub st_size: crate::off_t,
-        pub st_blksize: crate::blksize_t,
-        pub st_blocks: crate::blkcnt_t,
-        pub st_atime: crate::time_t,
-        pub st_atime_nsec: c_long,
-        pub st_mtime: crate::time_t,
-        pub st_mtime_nsec: c_long,
-        pub st_ctime: crate::time_t,
-        pub st_ctime_nsec: c_long,
-    }
-
-    pub struct dirent {
-        pub d_ino: crate::ino_t,
-        pub d_type: c_uchar,
-        pub d_name: [c_char; 256],
-    }
-}
-
-// File type constants for stat.st_mode
-pub const S_IFMT: crate::mode_t = 0o170000;
-pub const S_IFSOCK: crate::mode_t = 0o140000;
-pub const S_IFLNK: crate::mode_t = 0o120000;
-pub const S_IFREG: crate::mode_t = 0o100000;
-pub const S_IFBLK: crate::mode_t = 0o060000;
-pub const S_IFDIR: crate::mode_t = 0o040000;
-pub const S_IFCHR: crate::mode_t = 0o020000;
-pub const S_IFIFO: crate::mode_t = 0o010000;
-
-// File permission constants
-pub const S_ISUID: crate::mode_t = 0o4000;
-pub const S_ISGID: crate::mode_t = 0o2000;
-pub const S_ISVTX: crate::mode_t = 0o1000;
-pub const S_IRWXU: crate::mode_t = 0o0700;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const S_IROTH: crate::mode_t = 0o0004;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IXOTH: crate::mode_t = 0o0001;
-
-// Directory entry types
-pub const DT_UNKNOWN: c_uchar = 0;
-pub const DT_FIFO: c_uchar = 1;
-pub const DT_CHR: c_uchar = 2;
-pub const DT_DIR: c_uchar = 4;
-pub const DT_BLK: c_uchar = 6;
-pub const DT_REG: c_uchar = 8;
-pub const DT_LNK: c_uchar = 10;
-pub const DT_SOCK: c_uchar = 12;
-
-// Size types
-pub const PAGESIZE: size_t = 4096;
-pub const PAGE_SIZE: size_t = 4096;
-
-// pathconf constants (from bits/confname.h)
-pub const _PC_LINK_MAX: c_int = 0;
-pub const _PC_MAX_CANON: c_int = 1;
-pub const _PC_MAX_INPUT: c_int = 2;
-pub const _PC_NAME_MAX: c_int = 3;
-pub const _PC_PATH_MAX: c_int = 4;
-pub const _PC_PIPE_BUF: c_int = 5;
-pub const _PC_CHOWN_RESTRICTED: c_int = 6;
-pub const _PC_NO_TRUNC: c_int = 7;
-pub const _PC_VDISABLE: c_int = 8;
-pub const _PC_SYNC_IO: c_int = 9;
-pub const _PC_ASYNC_IO: c_int = 10;
-pub const _PC_PRIO_IO: c_int = 11;
-pub const _PC_SOCK_MAXBUF: c_int = 12;
-pub const _PC_FILESIZEBITS: c_int = 13;
-pub const _PC_REC_INCR_XFER_SIZE: c_int = 14;
-pub const _PC_REC_MAX_XFER_SIZE: c_int = 15;
-pub const _PC_REC_MIN_XFER_SIZE: c_int = 16;
-pub const _PC_REC_XFER_ALIGN: c_int = 17;
-pub const _PC_ALLOC_SIZE_MIN: c_int = 18;
-pub const _PC_SYMLINK_MAX: c_int = 19;
-pub const _PC_2_SYMLINKS: c_int = 20;
-
-// sysconf constants (from bits/confname.h)
-pub const _SC_ARG_MAX: c_int = 0;
-pub const _SC_CHILD_MAX: c_int = 1;
-pub const _SC_CLK_TCK: c_int = 2;
-pub const _SC_NGROUPS_MAX: c_int = 3;
-pub const _SC_OPEN_MAX: c_int = 4;
-pub const _SC_STREAM_MAX: c_int = 5;
-pub const _SC_TZNAME_MAX: c_int = 6;
-pub const _SC_JOB_CONTROL: c_int = 7;
-pub const _SC_SAVED_IDS: c_int = 8;
-pub const _SC_REALTIME_SIGNALS: c_int = 9;
-pub const _SC_PRIORITY_SCHEDULING: c_int = 10;
-pub const _SC_TIMERS: c_int = 11;
-pub const _SC_ASYNCHRONOUS_IO: c_int = 12;
-pub const _SC_PRIORITIZED_IO: c_int = 13;
-pub const _SC_SYNCHRONIZED_IO: c_int = 14;
-pub const _SC_FSYNC: c_int = 15;
-pub const _SC_MAPPED_FILES: c_int = 16;
-pub const _SC_MEMLOCK: c_int = 17;
-pub const _SC_MEMLOCK_RANGE: c_int = 18;
-pub const _SC_MEMORY_PROTECTION: c_int = 19;
-pub const _SC_MESSAGE_PASSING: c_int = 20;
-pub const _SC_SEMAPHORES: c_int = 21;
-pub const _SC_SHARED_MEMORY_OBJECTS: c_int = 22;
-pub const _SC_AIO_LISTIO_MAX: c_int = 23;
-pub const _SC_AIO_MAX: c_int = 24;
-pub const _SC_AIO_PRIO_DELTA_MAX: c_int = 25;
-pub const _SC_DELAYTIMER_MAX: c_int = 26;
-pub const _SC_MQ_OPEN_MAX: c_int = 27;
-pub const _SC_MQ_PRIO_MAX: c_int = 28;
-pub const _SC_VERSION: c_int = 29;
-pub const _SC_PAGESIZE: c_int = 30;
-pub const _SC_PAGE_SIZE: c_int = _SC_PAGESIZE;
-pub const _SC_RTSIG_MAX: c_int = 31;
-pub const _SC_SEM_NSEMS_MAX: c_int = 32;
-pub const _SC_SEM_VALUE_MAX: c_int = 33;
-pub const _SC_SIGQUEUE_MAX: c_int = 34;
-pub const _SC_TIMER_MAX: c_int = 35;
-
-// POSIX2 sysconf options
-pub const _SC_BC_BASE_MAX: c_int = 36;
-pub const _SC_BC_DIM_MAX: c_int = 37;
-pub const _SC_BC_SCALE_MAX: c_int = 38;
-pub const _SC_BC_STRING_MAX: c_int = 39;
-pub const _SC_COLL_WEIGHTS_MAX: c_int = 40;
-pub const _SC_EQUIV_CLASS_MAX: c_int = 41;
-pub const _SC_EXPR_NEST_MAX: c_int = 42;
-pub const _SC_LINE_MAX: c_int = 43;
-pub const _SC_RE_DUP_MAX: c_int = 44;
-pub const _SC_CHARCLASS_NAME_MAX: c_int = 45;
-
-pub const _SC_2_VERSION: c_int = 46;
-pub const _SC_2_C_BIND: c_int = 47;
-pub const _SC_2_C_DEV: c_int = 48;
-pub const _SC_2_FORT_DEV: c_int = 49;
-pub const _SC_2_FORT_RUN: c_int = 50;
-pub const _SC_2_SW_DEV: c_int = 51;
-pub const _SC_2_LOCALEDEF: c_int = 52;
-
-pub const _SC_PII: c_int = 53;
-pub const _SC_PII_XTI: c_int = 54;
-pub const _SC_PII_SOCKET: c_int = 55;
-pub const _SC_PII_INTERNET: c_int = 56;
-pub const _SC_PII_OSI: c_int = 57;
-pub const _SC_POLL: c_int = 58;
-pub const _SC_SELECT: c_int = 59;
-pub const _SC_UIO_MAXIOV: c_int = 60;
-pub const _SC_IOV_MAX: c_int = _SC_UIO_MAXIOV;
-pub const _SC_PII_INTERNET_STREAM: c_int = 61;
-pub const _SC_PII_INTERNET_DGRAM: c_int = 62;
-pub const _SC_PII_OSI_COTS: c_int = 63;
-pub const _SC_PII_OSI_CLTS: c_int = 64;
-pub const _SC_PII_OSI_M: c_int = 65;
-pub const _SC_T_IOV_MAX: c_int = 66;
-
-// POSIX threads sysconf options
-pub const _SC_THREADS: c_int = 67;
-pub const _SC_THREAD_SAFE_FUNCTIONS: c_int = 68;
-pub const _SC_GETGR_R_SIZE_MAX: c_int = 69;
-pub const _SC_GETPW_R_SIZE_MAX: c_int = 70;
-pub const _SC_LOGIN_NAME_MAX: c_int = 71;
-pub const _SC_TTY_NAME_MAX: c_int = 72;
-pub const _SC_THREAD_DESTRUCTOR_ITERATIONS: c_int = 73;
-pub const _SC_THREAD_KEYS_MAX: c_int = 74;
-pub const _SC_THREAD_STACK_MIN: c_int = 75;
-pub const _SC_THREAD_THREADS_MAX: c_int = 76;
-pub const _SC_THREAD_ATTR_STACKADDR: c_int = 77;
-pub const _SC_THREAD_ATTR_STACKSIZE: c_int = 78;
-pub const _SC_THREAD_PRIORITY_SCHEDULING: c_int = 79;
-pub const _SC_THREAD_PRIO_INHERIT: c_int = 80;
-pub const _SC_THREAD_PRIO_PROTECT: c_int = 81;
-pub const _SC_THREAD_PROCESS_SHARED: c_int = 82;
-
-pub const _SC_NPROCESSORS_CONF: c_int = 83;
-pub const _SC_NPROCESSORS_ONLN: c_int = 84;
-pub const _SC_PHYS_PAGES: c_int = 85;
-pub const _SC_AVPHYS_PAGES: c_int = 86;
-pub const _SC_ATEXIT_MAX: c_int = 87;
-pub const _SC_PASS_MAX: c_int = 88;
-
-pub const _SC_XOPEN_VERSION: c_int = 89;
-pub const _SC_XOPEN_XCU_VERSION: c_int = 90;
-pub const _SC_XOPEN_UNIX: c_int = 91;
-pub const _SC_XOPEN_CRYPT: c_int = 92;
-pub const _SC_XOPEN_ENH_I18N: c_int = 93;
-pub const _SC_XOPEN_SHM: c_int = 94;
-
-pub const _SC_2_CHAR_TERM: c_int = 95;
-pub const _SC_2_C_VERSION: c_int = 96;
-pub const _SC_2_UPE: c_int = 97;
-
-pub const _SC_XOPEN_XPG2: c_int = 98;
-pub const _SC_XOPEN_XPG3: c_int = 99;
-pub const _SC_XOPEN_XPG4: c_int = 100;
-
-pub const _SC_CHAR_BIT: c_int = 101;
-pub const _SC_CHAR_MAX: c_int = 102;
-pub const _SC_CHAR_MIN: c_int = 103;
-pub const _SC_INT_MAX: c_int = 104;
-pub const _SC_INT_MIN: c_int = 105;
-pub const _SC_LONG_BIT: c_int = 106;
-pub const _SC_WORD_BIT: c_int = 107;
-pub const _SC_MB_LEN_MAX: c_int = 108;
-pub const _SC_NZERO: c_int = 109;
-pub const _SC_SSIZE_MAX: c_int = 110;
-pub const _SC_SCHAR_MAX: c_int = 111;
-pub const _SC_SCHAR_MIN: c_int = 112;
-pub const _SC_SHRT_MAX: c_int = 113;
-pub const _SC_SHRT_MIN: c_int = 114;
-pub const _SC_UCHAR_MAX: c_int = 115;
-pub const _SC_UINT_MAX: c_int = 116;
-pub const _SC_ULONG_MAX: c_int = 117;
-pub const _SC_USHRT_MAX: c_int = 118;
-
-pub const _SC_NL_ARGMAX: c_int = 119;
-pub const _SC_NL_LANGMAX: c_int = 120;
-pub const _SC_NL_MSGMAX: c_int = 121;
-pub const _SC_NL_NMAX: c_int = 122;
-pub const _SC_NL_SETMAX: c_int = 123;
-pub const _SC_NL_TEXTMAX: c_int = 124;
-
-pub const _SC_XBS5_ILP32_OFF32: c_int = 125;
-pub const _SC_XBS5_ILP32_OFFBIG: c_int = 126;
-pub const _SC_XBS5_LP64_OFF64: c_int = 127;
-pub const _SC_XBS5_LPBIG_OFFBIG: c_int = 128;
-
-pub const _SC_XOPEN_LEGACY: c_int = 129;
-pub const _SC_XOPEN_REALTIME: c_int = 130;
-pub const _SC_XOPEN_REALTIME_THREADS: c_int = 131;
-
-pub const _SC_ADVISORY_INFO: c_int = 132;
-pub const _SC_BARRIERS: c_int = 133;
-pub const _SC_BASE: c_int = 134;
-pub const _SC_C_LANG_SUPPORT: c_int = 135;
-pub const _SC_C_LANG_SUPPORT_R: c_int = 136;
-pub const _SC_CLOCK_SELECTION: c_int = 137;
-pub const _SC_CPUTIME: c_int = 138;
-pub const _SC_THREAD_CPUTIME: c_int = 139;
-pub const _SC_DEVICE_IO: c_int = 140;
-pub const _SC_DEVICE_SPECIFIC: c_int = 141;
-pub const _SC_DEVICE_SPECIFIC_R: c_int = 142;
-pub const _SC_FD_MGMT: c_int = 143;
-pub const _SC_FIFO: c_int = 144;
-pub const _SC_PIPE: c_int = 145;
-pub const _SC_FILE_ATTRIBUTES: c_int = 146;
-pub const _SC_FILE_LOCKING: c_int = 147;
-pub const _SC_FILE_SYSTEM: c_int = 148;
-pub const _SC_MONOTONIC_CLOCK: c_int = 149;
-pub const _SC_MULTI_PROCESS: c_int = 150;
-pub const _SC_SINGLE_PROCESS: c_int = 151;
-pub const _SC_NETWORKING: c_int = 152;
-pub const _SC_READER_WRITER_LOCKS: c_int = 153;
-pub const _SC_SPIN_LOCKS: c_int = 154;
-pub const _SC_REGEXP: c_int = 155;
-pub const _SC_REGEX_VERSION: c_int = 156;
-pub const _SC_SHELL: c_int = 157;
-pub const _SC_SIGNALS: c_int = 158;
-pub const _SC_SPAWN: c_int = 159;
-pub const _SC_SPORADIC_SERVER: c_int = 160;
-pub const _SC_THREAD_SPORADIC_SERVER: c_int = 161;
-pub const _SC_SYSTEM_DATABASE: c_int = 162;
-pub const _SC_SYSTEM_DATABASE_R: c_int = 163;
-pub const _SC_TIMEOUTS: c_int = 164;
-pub const _SC_TYPED_MEMORY_OBJECTS: c_int = 165;
-pub const _SC_USER_GROUPS: c_int = 166;
-pub const _SC_USER_GROUPS_R: c_int = 167;
-pub const _SC_2_PBS: c_int = 168;
-pub const _SC_2_PBS_ACCOUNTING: c_int = 169;
-pub const _SC_2_PBS_LOCATE: c_int = 170;
-pub const _SC_2_PBS_MESSAGE: c_int = 171;
-pub const _SC_2_PBS_TRACK: c_int = 172;
-pub const _SC_SYMLOOP_MAX: c_int = 173;
-pub const _SC_STREAMS: c_int = 174;
-pub const _SC_2_PBS_CHECKPOINT: c_int = 175;
-
-pub const _SC_V6_ILP32_OFF32: c_int = 176;
-pub const _SC_V6_ILP32_OFFBIG: c_int = 177;
-pub const _SC_V6_LP64_OFF64: c_int = 178;
-pub const _SC_V6_LPBIG_OFFBIG: c_int = 179;
-
-pub const _SC_HOST_NAME_MAX: c_int = 180;
-pub const _SC_TRACE: c_int = 181;
-pub const _SC_TRACE_EVENT_FILTER: c_int = 182;
-pub const _SC_TRACE_INHERIT: c_int = 183;
-pub const _SC_TRACE_LOG: c_int = 184;
-
-pub const _SC_LEVEL1_ICACHE_SIZE: c_int = 185;
-pub const _SC_LEVEL1_ICACHE_ASSOC: c_int = 186;
-pub const _SC_LEVEL1_ICACHE_LINESIZE: c_int = 187;
-pub const _SC_LEVEL1_DCACHE_SIZE: c_int = 188;
-pub const _SC_LEVEL1_DCACHE_ASSOC: c_int = 189;
-pub const _SC_LEVEL1_DCACHE_LINESIZE: c_int = 190;
-pub const _SC_LEVEL2_CACHE_SIZE: c_int = 191;
-pub const _SC_LEVEL2_CACHE_ASSOC: c_int = 192;
-pub const _SC_LEVEL2_CACHE_LINESIZE: c_int = 193;
-pub const _SC_LEVEL3_CACHE_SIZE: c_int = 194;
-pub const _SC_LEVEL3_CACHE_ASSOC: c_int = 195;
-pub const _SC_LEVEL3_CACHE_LINESIZE: c_int = 196;
-pub const _SC_LEVEL4_CACHE_SIZE: c_int = 197;
-pub const _SC_LEVEL4_CACHE_ASSOC: c_int = 198;
-pub const _SC_LEVEL4_CACHE_LINESIZE: c_int = 199;
-
-pub const _SC_IPV6: c_int = 235;
-pub const _SC_RAW_SOCKETS: c_int = 236;
-
-pub const _SC_V7_ILP32_OFF32: c_int = 237;
-pub const _SC_V7_ILP32_OFFBIG: c_int = 238;
-pub const _SC_V7_LP64_OFF64: c_int = 239;
-pub const _SC_V7_LPBIG_OFFBIG: c_int = 240;
-
-pub const _SC_SS_REPL_MAX: c_int = 241;
-
-pub const _SC_TRACE_EVENT_NAME_MAX: c_int = 242;
-pub const _SC_TRACE_NAME_MAX: c_int = 243;
-pub const _SC_TRACE_SYS_MAX: c_int = 244;
-pub const _SC_TRACE_USER_EVENT_MAX: c_int = 245;
-
-pub const _SC_XOPEN_STREAMS: c_int = 246;
-
-pub const _SC_THREAD_ROBUST_PRIO_INHERIT: c_int = 247;
-pub const _SC_THREAD_ROBUST_PRIO_PROTECT: c_int = 248;
-
-// Note: QuRT doesn't use traditional syscalls but has its own API
diff --git a/src/qurt/mod.rs b/src/qurt/mod.rs
index 1ecbe172a2564..b5e01f93093db 100644
--- a/src/qurt/mod.rs
+++ b/src/qurt/mod.rs
@@ -1,334 +1,18 @@
 //! Interface to QuRT (Qualcomm Real-Time OS) C library
+//!
+//! This module re-exports items from the new module structure.
+//! QuRT was introduced after the `src/new/` module structure was established,
+//! so all definitions live in `src/new/qurt/` and are re-exported here
+//! for compatibility with the existing libc structure.
 
-use crate::prelude::*;
+// Re-export everything from the new qurt module
+pub use crate::new::qurt::*;
 
-// Forward declarations for opaque types
-#[derive(Debug)]
-pub enum DIR {}
-impl Copy for DIR {}
-impl Clone for DIR {
-    fn clone(&self) -> DIR {
-        *self
-    }
-}
-
-// Network types
-pub type socklen_t = c_uint;
-pub type in_addr_t = u32;
-
-// Error type
-pub type errno_t = c_int;
-
-// Resource limit type
-pub type rlim_t = c_ulong;
-
-// Terminal types
-pub type speed_t = c_uint;
-pub type tcflag_t = c_uint;
-
-// File descriptor set type for select()
-pub type fd_set = c_ulong;
-
-// POSIX semaphore types
-pub type sem_t = c_uint;
-
-// Message queue types
-pub type mqd_t = c_int;
-
-// Additional file system types
-pub type nfds_t = c_ulong;
-
-// Architecture-specific modules
+// Architecture-specific modules (if any are needed in the future)
 cfg_if! {
     if #[cfg(target_arch = "hexagon")] {
-        mod hexagon;
-        pub use self::hexagon::*;
+        // Currently no hexagon-specific items needed beyond what's in new/qurt
     } else {
         // Add other architectures as needed
     }
 }
-
-// Structures based on QuRT headers
-s! {
-    pub struct sigval {
-        pub sival_int: c_int,
-        pub sival_ptr: *mut c_void,
-    }
-
-    pub struct sigevent {
-        pub sigev_notify: c_int,
-        pub sigev_signo: c_int,
-        pub sigev_value: sigval,
-        pub sigev_notify_function: Option<extern "C" fn(sigval)>,
-        pub sigev_notify_attributes: *mut pthread_attr_t,
-    }
-
-    pub struct siginfo_t {
-        pub si_signo: c_int,
-        pub si_code: c_int,
-        pub si_value: sigval,
-    }
-
-    pub struct sigaction {
-        pub sa_handler: Option<extern "C" fn(c_int)>,
-        pub sa_mask: sigset_t,
-        pub sa_flags: c_int,
-        pub sa_sigaction: Option<extern "C" fn(c_int, *mut siginfo_t, *mut c_void)>,
-    }
-
-    pub struct termios {
-        pub c_iflag: tcflag_t,
-        pub c_oflag: tcflag_t,
-        pub c_cflag: tcflag_t,
-        pub c_lflag: tcflag_t,
-        pub c_cc: [c_uchar; 32],
-        pub c_ispeed: speed_t,
-        pub c_ospeed: speed_t,
-    }
-
-    pub struct dirent {
-        pub d_ino: ino_t,
-        pub d_type: c_uchar,
-        pub d_name: [c_char; 256],
-    }
-
-    pub struct tm {
-        pub tm_sec: c_int,
-        pub tm_min: c_int,
-        pub tm_hour: c_int,
-        pub tm_mday: c_int,
-        pub tm_mon: c_int,
-        pub tm_year: c_int,
-        pub tm_wday: c_int,
-        pub tm_yday: c_int,
-        pub tm_isdst: c_int,
-    }
-
-    pub struct sched_param {
-        pub sched_priority: c_int,
-    }
-
-    pub struct iovec {
-        pub iov_base: *mut c_void,
-        pub iov_len: size_t,
-    }
-
-    pub struct rlimit {
-        pub rlim_cur: rlim_t,
-        pub rlim_max: rlim_t,
-    }
-
-    pub struct rusage {
-        pub ru_utime: timeval,
-        pub ru_stime: timeval,
-        pub ru_maxrss: c_long,
-        pub ru_ixrss: c_long,
-        pub ru_idrss: c_long,
-        pub ru_isrss: c_long,
-        pub ru_minflt: c_long,
-        pub ru_majflt: c_long,
-        pub ru_nswap: c_long,
-        pub ru_inblock: c_long,
-        pub ru_oublock: c_long,
-        pub ru_msgsnd: c_long,
-        pub ru_msgrcv: c_long,
-        pub ru_nsignals: c_long,
-        pub ru_nvcsw: c_long,
-        pub ru_nivcsw: c_long,
-    }
-
-    pub struct flock {
-        pub l_type: c_short,
-        pub l_whence: c_short,
-        pub l_start: off_t,
-        pub l_len: off_t,
-        pub l_pid: pid_t,
-    }
-}
-
-// Memory mapping constants (from sys/mman.h)
-pub const PROT_NONE: c_int = 0x00;
-pub const PROT_READ: c_int = 0x01;
-pub const PROT_WRITE: c_int = 0x02;
-pub const PROT_EXEC: c_int = 0x04;
-
-pub const MAP_SHARED: c_int = 0x0001;
-pub const MAP_PRIVATE: c_int = 0x0002;
-pub const MAP_FIXED: c_int = 0x0010;
-pub const MAP_ANON: c_int = 0x1000;
-pub const MAP_ANONYMOUS: c_int = MAP_ANON;
-pub const MAP_FILE: c_int = 0x0000;
-pub const MAP_RENAME: c_int = 0x0020;
-pub const MAP_NORESERVE: c_int = 0x0040;
-pub const MAP_INHERIT: c_int = 0x0080;
-pub const MAP_HASSEMAPHORE: c_int = 0x0200;
-pub const MAP_TRYFIXED: c_int = 0x0400;
-pub const MAP_WIRED: c_int = 0x0800;
-
-pub const MAP_FAILED: *mut c_void = !0 as *mut c_void;
-
-pub const MS_ASYNC: c_int = 0x01;
-pub const MS_INVALIDATE: c_int = 0x02;
-pub const MS_SYNC: c_int = 0x04;
-
-pub const MCL_CURRENT: c_int = 0x01;
-pub const MCL_FUTURE: c_int = 0x02;
-
-// Dynamic linking constants (from dlfcn.h)
-pub const RTLD_LAZY: c_int = 1;
-pub const RTLD_NOW: c_int = 2;
-pub const RTLD_GLOBAL: c_int = 0x100;
-pub const RTLD_LOCAL: c_int = 0x200;
-
-// Semaphore constants
-pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;
-
-// Additional constants
-pub const PTHREAD_NAME_LEN: c_int = 16;
-pub const PTHREAD_MAX_THREADS: c_uint = 512;
-pub const PTHREAD_MIN_STACKSIZE: c_int = 512;
-pub const PTHREAD_MAX_STACKSIZE: c_int = 1048576;
-pub const PTHREAD_DEFAULT_STACKSIZE: c_int = 16384;
-pub const PTHREAD_DEFAULT_PRIORITY: c_int = 1;
-pub const PTHREAD_SPINLOCK_UNLOCKED: c_int = 0;
-pub const PTHREAD_SPINLOCK_LOCKED: c_int = 1;
-pub const TIME_CONV_SCLK_FREQ: c_int = 19200000;
-pub const CLOCK_MONOTONIC_RAW: clockid_t = 4;
-pub const CLOCK_REALTIME_COARSE: clockid_t = 5;
-pub const CLOCK_MONOTONIC_COARSE: clockid_t = 6;
-pub const CLOCK_BOOTTIME: clockid_t = 7;
-pub const L_tmpnam: c_uint = 260;
-pub const TMP_MAX: c_uint = 25;
-pub const FOPEN_MAX: c_uint = 20;
-pub const AT_FDCWD: c_int = -100;
-pub const AT_EACCESS: c_int = 0x200;
-pub const AT_SYMLINK_NOFOLLOW: c_int = 0x100;
-pub const AT_SYMLINK_FOLLOW: c_int = 0x400;
-pub const AT_REMOVEDIR: c_int = 0x200;
-pub const EOK: c_int = 0;
-pub const POSIX_MSG: c_int = 7;
-pub const POSIX_NOTIF: c_int = 8;
-pub const SIGRTMIN: c_int = 10;
-pub const SIGRTMAX: c_int = 32;
-pub const SIGEV_NONE: c_int = 0;
-pub const SIGEV_SIGNAL: c_int = 1;
-pub const SIGEV_THREAD: c_int = 2;
-pub const SA_SIGINFO: c_int = 1;
-
-// Function declarations for QuRT POSIX API
-extern "C" {
-    // Signal functions
-    pub fn sigwait(set: *const sigset_t, sig: *mut c_int) -> c_int;
-    pub fn _sigaction(sig: c_int, act: *const sigaction, oact: *mut sigaction) -> c_int;
-    pub fn sigtimedwait(
-        set: *const sigset_t,
-        info: *mut siginfo_t,
-        timeout: *const timespec,
-    ) -> c_int;
-
-    // Additional pthread functions
-    pub fn pthread_attr_getstack(
-        attr: *const pthread_attr_t,
-        stackaddr: *mut *mut c_void,
-        stacksize: *mut size_t,
-    ) -> c_int;
-    pub fn pthread_attr_setstack(
-        attr: *mut pthread_attr_t,
-        stackaddr: *mut c_void,
-        stacksize: size_t,
-    ) -> c_int;
-    pub fn pthread_mutexattr_gettype(attr: *const pthread_mutexattr_t, type_: *mut c_int) -> c_int;
-    pub fn pthread_mutexattr_settype(attr: *mut pthread_mutexattr_t, type_: c_int) -> c_int;
-
-    // Additional time functions
-    pub fn clock_getcpuclockid(pid: pid_t, clock_id: *mut clockid_t) -> c_int;
-
-    // POSIX semaphore functions
-    pub fn sem_open(name: *const c_char, oflag: c_int, ...) -> *mut sem_t;
-    pub fn sem_close(sem: *mut sem_t) -> c_int;
-    pub fn sem_unlink(name: *const c_char) -> c_int;
-
-    // Additional stdlib functions
-    pub fn aligned_alloc(alignment: size_t, size: size_t) -> *mut c_void;
-
-    // String functions
-    pub fn strlen(s: *const c_char) -> size_t;
-    pub fn strcpy(dest: *mut c_char, src: *const c_char) -> *mut c_char;
-    pub fn strncpy(dest: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
-    pub fn strcat(dest: *mut c_char, src: *const c_char) -> *mut c_char;
-    pub fn strncat(dest: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
-    pub fn strcmp(s1: *const c_char, s2: *const c_char) -> c_int;
-    pub fn strncmp(s1: *const c_char, s2: *const c_char, n: size_t) -> c_int;
-    pub fn strcoll(s1: *const c_char, s2: *const c_char) -> c_int;
-    pub fn strxfrm(dest: *mut c_char, src: *const c_char, n: size_t) -> size_t;
-    pub fn strchr(s: *const c_char, c: c_int) -> *mut c_char;
-    pub fn strrchr(s: *const c_char, c: c_int) -> *mut c_char;
-    pub fn strspn(s: *const c_char, accept: *const c_char) -> size_t;
-    pub fn strcspn(s: *const c_char, reject: *const c_char) -> size_t;
-    pub fn strpbrk(s: *const c_char, accept: *const c_char) -> *mut c_char;
-    pub fn strstr(haystack: *const c_char, needle: *const c_char) -> *mut c_char;
-    pub fn strtok(s: *mut c_char, delim: *const c_char) -> *mut c_char;
-    pub fn strerror(errnum: c_int) -> *mut c_char;
-    pub fn memchr(s: *const c_void, c: c_int, n: size_t) -> *mut c_void;
-    pub fn memcmp(s1: *const c_void, s2: *const c_void, n: size_t) -> c_int;
-    pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
-    pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
-    pub fn memset(s: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
-
-    // Additional unistd functions
-    pub fn fork() -> pid_t;
-    pub fn execve(
-        filename: *const c_char,
-        argv: *const *const c_char,
-        envp: *const *const c_char,
-    ) -> c_int;
-
-    // Directory functions
-    pub fn opendir(name: *const c_char) -> *mut DIR;
-    pub fn closedir(dirp: *mut DIR) -> c_int;
-    pub fn readdir(dirp: *mut DIR) -> *mut dirent;
-    pub fn rewinddir(dirp: *mut DIR);
-    pub fn telldir(dirp: *mut DIR) -> c_long;
-    pub fn seekdir(dirp: *mut DIR, loc: c_long);
-
-    // Memory mapping functions
-    pub fn mmap(
-        addr: *mut c_void,
-        len: size_t,
-        prot: c_int,
-        flags: c_int,
-        fd: c_int,
-        offset: off_t,
-    ) -> *mut c_void;
-    pub fn munmap(addr: *mut c_void, len: size_t) -> c_int;
-    pub fn mprotect(addr: *mut c_void, len: size_t, prot: c_int) -> c_int;
-    pub fn mlock(addr: *const c_void, len: size_t) -> c_int;
-    pub fn munlock(addr: *const c_void, len: size_t) -> c_int;
-    pub fn mlockall(flags: c_int) -> c_int;
-    pub fn munlockall() -> c_int;
-    pub fn msync(addr: *mut c_void, len: size_t, flags: c_int) -> c_int;
-
-    // Dynamic linking functions
-    pub fn dlopen(filename: *const c_char, flag: c_int) -> *mut c_void;
-    pub fn dlclose(handle: *mut c_void) -> c_int;
-    pub fn dlsym(handle: *mut c_void, symbol: *const c_char) -> *mut c_void;
-    pub fn dlerror() -> *mut c_char;
-
-    // Character classification functions
-    pub fn isalnum(c: c_int) -> c_int;
-    pub fn isalpha(c: c_int) -> c_int;
-    pub fn iscntrl(c: c_int) -> c_int;
-    pub fn isdigit(c: c_int) -> c_int;
-    pub fn isgraph(c: c_int) -> c_int;
-    pub fn islower(c: c_int) -> c_int;
-    pub fn isprint(c: c_int) -> c_int;
-    pub fn ispunct(c: c_int) -> c_int;
-    pub fn isspace(c: c_int) -> c_int;
-    pub fn isupper(c: c_int) -> c_int;
-    pub fn isxdigit(c: c_int) -> c_int;
-    pub fn tolower(c: c_int) -> c_int;
-    pub fn toupper(c: c_int) -> c_int;
-}
-
-// Re-export common prelude items
-pub use crate::*;