Ensure we have the off64_t variant of every function that takes an off_t.

Change-Id: Ib2eee0cf13162be3b62559b84e90c6dcf5aab1c3
diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index 11573de..7180cf2 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -88,6 +88,7 @@
 syscall_src += arch-x86/syscalls/__fcntl64.S
 syscall_src += arch-x86/syscalls/__fstatfs64.S
 syscall_src += arch-x86/syscalls/sendfile.S
+syscall_src += arch-x86/syscalls/sendfile64.S
 syscall_src += arch-x86/syscalls/fstatat.S
 syscall_src += arch-x86/syscalls/mkdirat.S
 syscall_src += arch-x86/syscalls/fchownat.S
@@ -120,6 +121,7 @@
 syscall_src += arch-x86/syscalls/symlink.S
 syscall_src += arch-x86/syscalls/fchdir.S
 syscall_src += arch-x86/syscalls/truncate.S
+syscall_src += arch-x86/syscalls/truncate64.S
 syscall_src += arch-x86/syscalls/setxattr.S
 syscall_src += arch-x86/syscalls/lsetxattr.S
 syscall_src += arch-x86/syscalls/getxattr.S
diff --git a/libc/arch-x86/syscalls/sendfile64.S b/libc/arch-x86/syscalls/sendfile64.S
new file mode 100644
index 0000000..9731806
--- /dev/null
+++ b/libc/arch-x86/syscalls/sendfile64.S
@@ -0,0 +1,30 @@
+/* autogenerated by gensyscalls.py */
+#include <linux/err.h>
+#include <machine/asm.h>
+#include <asm/unistd.h>
+
+ENTRY(sendfile64)
+    pushl   %ebx
+    pushl   %ecx
+    pushl   %edx
+    pushl   %esi
+    mov     20(%esp), %ebx
+    mov     24(%esp), %ecx
+    mov     28(%esp), %edx
+    mov     32(%esp), %esi
+    movl    $__NR_sendfile64, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %esi
+    popl    %edx
+    popl    %ecx
+    popl    %ebx
+    ret
+END(sendfile64)
diff --git a/libc/arch-x86/syscalls/truncate64.S b/libc/arch-x86/syscalls/truncate64.S
new file mode 100644
index 0000000..f9118bb
--- /dev/null
+++ b/libc/arch-x86/syscalls/truncate64.S
@@ -0,0 +1,27 @@
+/* autogenerated by gensyscalls.py */
+#include <linux/err.h>
+#include <machine/asm.h>
+#include <asm/unistd.h>
+
+ENTRY(truncate64)
+    pushl   %ebx
+    pushl   %ecx
+    pushl   %edx
+    mov     16(%esp), %ebx
+    mov     20(%esp), %ecx
+    mov     24(%esp), %edx
+    movl    $__NR_truncate64, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %edx
+    popl    %ecx
+    popl    %ebx
+    ret
+END(truncate64)