diff --git a/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs b/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
index 2ed6a9156df2a..d64c353bb05b7 100644
--- a/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
@@ -325,8 +325,6 @@ pub const SYS_vmsplice: ::c_long = 75;
 pub const SYS_splice: ::c_long = 76;
 pub const SYS_tee: ::c_long = 77;
 pub const SYS_readlinkat: ::c_long = 78;
-pub const SYS_newfstatat: ::c_long = 79;
-pub const SYS_fstat: ::c_long = 80;
 pub const SYS_sync: ::c_long = 81;
 pub const SYS_fsync: ::c_long = 82;
 pub const SYS_fdatasync: ::c_long = 83;
@@ -409,8 +407,6 @@ pub const SYS_setgroups: ::c_long = 159;
 pub const SYS_uname: ::c_long = 160;
 pub const SYS_sethostname: ::c_long = 161;
 pub const SYS_setdomainname: ::c_long = 162;
-pub const SYS_getrlimit: ::c_long = 163;
-pub const SYS_setrlimit: ::c_long = 164;
 pub const SYS_getrusage: ::c_long = 165;
 pub const SYS_umask: ::c_long = 166;
 pub const SYS_prctl: ::c_long = 167;
@@ -772,8 +768,8 @@ pub const EXTPROC: ::tcflag_t = 0x00010000;
 pub const TCSANOW: ::c_int = 0;
 pub const TCSADRAIN: ::c_int = 1;
 pub const TCSAFLUSH: ::c_int = 2;
-pub const SIGSTKSZ: ::size_t = 8192;
-pub const MINSIGSTKSZ: ::size_t = 2048;
+pub const SIGSTKSZ: ::size_t = 16384;
+pub const MINSIGSTKSZ: ::size_t = 4096;
 pub const CBAUD: ::tcflag_t = 0o0010017;
 pub const CSIZE: ::tcflag_t = 0x00000030;
 pub const CS6: ::tcflag_t = 0x00000010;
@@ -858,17 +854,6 @@ pub const EPOLL_CLOEXEC: ::c_int = 0x80000;
 pub const EFD_CLOEXEC: ::c_int = 0x80000;
 pub const EFD_NONBLOCK: ::c_int = 0x800;
 
-extern "C" {
-    pub fn sysctl(
-        name: *mut ::c_int,
-        namelen: ::c_int,
-        oldp: *mut ::c_void,
-        oldlenp: *mut ::size_t,
-        newp: *mut ::c_void,
-        newlen: ::size_t,
-    ) -> ::c_int;
-}
-
 cfg_if! {
     if #[cfg(libc_align)] {
         mod align;