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

libc/arch-x86/syscalls.mk

@@ -50,8 +50,8 @@ syscall_src += arch-x86/syscalls/close.S
 syscall_src += arch-x86/syscalls/connect.S
 syscall_src += arch-x86/syscalls/delete_module.S
 syscall_src += arch-x86/syscalls/dup.S
-syscall_src += arch-x86/syscalls/dup2.S
-syscall_src += arch-x86/syscalls/epoll_create.S
+syscall_src += arch-x86/syscalls/dup3.S
+syscall_src += arch-x86/syscalls/epoll_create1.S
 syscall_src += arch-x86/syscalls/epoll_ctl.S
 syscall_src += arch-x86/syscalls/epoll_wait.S
 syscall_src += arch-x86/syscalls/eventfd.S
@@ -97,7 +97,7 @@ syscall_src += arch-x86/syscalls/getuid.S
 syscall_src += arch-x86/syscalls/getxattr.S
 syscall_src += arch-x86/syscalls/init_module.S
 syscall_src += arch-x86/syscalls/inotify_add_watch.S
-syscall_src += arch-x86/syscalls/inotify_init.S
+syscall_src += arch-x86/syscalls/inotify_init1.S
 syscall_src += arch-x86/syscalls/inotify_rm_watch.S
 syscall_src += arch-x86/syscalls/ioprio_get.S
 syscall_src += arch-x86/syscalls/ioprio_set.S
@@ -128,7 +128,6 @@ syscall_src += arch-x86/syscalls/nanosleep.S
 syscall_src += arch-x86/syscalls/pause.S
 syscall_src += arch-x86/syscalls/perf_event_open.S
 syscall_src += arch-x86/syscalls/personality.S
-syscall_src += arch-x86/syscalls/pipe.S
 syscall_src += arch-x86/syscalls/pipe2.S
 syscall_src += arch-x86/syscalls/poll.S
 syscall_src += arch-x86/syscalls/prctl.S

libc/arch-x86/syscalls/dup3.S

@@ -4,12 +4,14 @@
 #include <linux/err.h>
 #include <machine/asm.h>
 
-ENTRY(dup2)
+ENTRY(dup3)
     pushl   %ebx
     pushl   %ecx
-    mov     12(%esp), %ebx
-    mov     16(%esp), %ecx
-    movl    $__NR_dup2, %eax
+    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
@@ -19,7 +21,8 @@ ENTRY(dup2)
     addl    $4, %esp
     orl     $-1, %eax
 1:
+    popl    %edx
     popl    %ecx
     popl    %ebx
     ret
-END(dup2)
+END(dup3)

libc/arch-x86/syscalls/epoll_create1.S

@@ -4,10 +4,10 @@
 #include <linux/err.h>
 #include <machine/asm.h>
 
-ENTRY(epoll_create)
+ENTRY(epoll_create1)
     pushl   %ebx
     mov     8(%esp), %ebx
-    movl    $__NR_epoll_create, %eax
+    movl    $__NR_epoll_create1, %eax
     int     $0x80
     cmpl    $-MAX_ERRNO, %eax
     jb      1f
@@ -19,4 +19,4 @@ ENTRY(epoll_create)
 1:
     popl    %ebx
     ret
-END(epoll_create)
+END(epoll_create1)

libc/arch-x86/syscalls/inotify_init1.S

@@ -4,10 +4,10 @@
 #include <linux/err.h>
 #include <machine/asm.h>
 
-ENTRY(inotify_init)
+ENTRY(inotify_init1)
     pushl   %ebx
     mov     8(%esp), %ebx
-    movl    $__NR_inotify_init, %eax
+    movl    $__NR_inotify_init1, %eax
     int     $0x80
     cmpl    $-MAX_ERRNO, %eax
     jb      1f
@@ -19,4 +19,4 @@ ENTRY(inotify_init)
 1:
     popl    %ebx
     ret
-END(inotify_init)
+END(inotify_init1)

libc/arch-x86/syscalls/pipe.S

@@ -1,22 +0,0 @@
-/* Generated by gensyscalls.py. Do not edit. */
-
-#include <asm/unistd.h>
-#include <linux/err.h>
-#include <machine/asm.h>
-
-ENTRY(pipe)
-    pushl   %ebx
-    mov     8(%esp), %ebx
-    movl    $__NR_pipe, %eax
-    int     $0x80
-    cmpl    $-MAX_ERRNO, %eax
-    jb      1f
-    negl    %eax
-    pushl   %eax
-    call    __set_errno
-    addl    $4, %esp
-    orl     $-1, %eax
-1:
-    popl    %ebx
-    ret
-END(pipe)