Remove dependencies on obsolete __ARCH_WANT_SYSCALL_NO_FLAGS syscalls.
(aarch64 kernels only have the newer system calls.)
Also expose the new functionality that's exposed by glibc in our header files.
Change-Id: I45d2d168a03f88723d1f7fbf634701006a4843c5
diff --git a/libc/arch-x86/syscalls/dup3.S b/libc/arch-x86/syscalls/dup3.S
new file mode 100644
index 0000000..19522f0
--- /dev/null
+++ b/libc/arch-x86/syscalls/dup3.S
@@ -0,0 +1,28 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(dup3)
+ pushl %ebx
+ pushl %ecx
+ pushl %edx
+ mov 16(%esp), %ebx
+ mov 20(%esp), %ecx
+ mov 24(%esp), %edx
+ movl $__NR_dup3, %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(dup3)