diff --git a/libc/arch-x86/syscalls/__fadvise64.S b/libc/arch-x86/syscalls/__fadvise64.S
new file mode 100644
index 0000000..6e4298a
--- /dev/null
+++ b/libc/arch-x86/syscalls/__fadvise64.S
@@ -0,0 +1,46 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(__fadvise64)
+    pushl   %ebx
+    .cfi_def_cfa_offset 8
+    .cfi_rel_offset ebx, 0
+    pushl   %ecx
+    .cfi_adjust_cfa_offset 4
+    .cfi_rel_offset ecx, 0
+    pushl   %edx
+    .cfi_adjust_cfa_offset 4
+    .cfi_rel_offset edx, 0
+    pushl   %esi
+    .cfi_adjust_cfa_offset 4
+    .cfi_rel_offset esi, 0
+    pushl   %edi
+    .cfi_adjust_cfa_offset 4
+    .cfi_rel_offset edi, 0
+    pushl   %ebp
+    .cfi_adjust_cfa_offset 4
+    .cfi_rel_offset ebp, 0
+    mov     28(%esp), %ebx
+    mov     32(%esp), %ecx
+    mov     36(%esp), %edx
+    mov     40(%esp), %esi
+    mov     44(%esp), %edi
+    mov     48(%esp), %ebp
+    movl    $__NR_fadvise64_64, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno_internal
+    addl    $4, %esp
+1:
+    popl    %ebp
+    popl    %edi
+    popl    %esi
+    popl    %edx
+    popl    %ecx
+    popl    %ebx
+    ret
+END(__fadvise64)