diff --git a/libc/arch-mips/syscalls.mk b/libc/arch-mips/syscalls.mk
index 51fd32d..263f307 100644
--- a/libc/arch-mips/syscalls.mk
+++ b/libc/arch-mips/syscalls.mk
@@ -63,6 +63,8 @@
 syscall_src += arch-mips/syscalls/madvise.S
 syscall_src += arch-mips/syscalls/mlock.S
 syscall_src += arch-mips/syscalls/munlock.S
+syscall_src += arch-mips/syscalls/mlockall.S
+syscall_src += arch-mips/syscalls/munlockall.S
 syscall_src += arch-mips/syscalls/mincore.S
 syscall_src += arch-mips/syscalls/__ioctl.S
 syscall_src += arch-mips/syscalls/readv.S
diff --git a/libc/arch-mips/syscalls/mlockall.S b/libc/arch-mips/syscalls/mlockall.S
new file mode 100644
index 0000000..393c090
--- /dev/null
+++ b/libc/arch-mips/syscalls/mlockall.S
@@ -0,0 +1,22 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+    .text
+    .globl mlockall
+    .align 4
+    .ent mlockall
+
+mlockall:
+    .set noreorder
+    .cpload $t9
+    li $v0, __NR_mlockall
+    syscall
+    bnez $a3, 1f
+    move $a0, $v0
+    j $ra
+    nop
+1:
+    la $t9,__set_errno
+    j $t9
+    nop
+    .set reorder
+    .end mlockall
diff --git a/libc/arch-mips/syscalls/munlockall.S b/libc/arch-mips/syscalls/munlockall.S
new file mode 100644
index 0000000..20fa7b8
--- /dev/null
+++ b/libc/arch-mips/syscalls/munlockall.S
@@ -0,0 +1,22 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+    .text
+    .globl munlockall
+    .align 4
+    .ent munlockall
+
+munlockall:
+    .set noreorder
+    .cpload $t9
+    li $v0, __NR_munlockall
+    syscall
+    bnez $a3, 1f
+    move $a0, $v0
+    j $ra
+    nop
+1:
+    la $t9,__set_errno
+    j $t9
+    nop
+    .set reorder
+    .end munlockall