Mark sockets on creation (socket()) and accept4().

Remove the separate syscall for accept() and implement it as accept4(..., 0).

Change-Id: Ib0b8f5d7c5013b91eae6bbc3847852eb355c7714
diff --git a/libc/arch-arm/syscalls/__accept.S b/libc/arch-arm/syscalls/__accept.S
deleted file mode 100644
index bae11bc..0000000
--- a/libc/arch-arm/syscalls/__accept.S
+++ /dev/null
@@ -1,14 +0,0 @@
-/* Generated by gensyscalls.py. Do not edit. */
-
-#include <private/bionic_asm.h>
-
-ENTRY(__accept)
-    mov     ip, r7
-    ldr     r7, =__NR_accept
-    swi     #0
-    mov     r7, ip
-    cmn     r0, #(MAX_ERRNO + 1)
-    bxls    lr
-    neg     r0, r0
-    b       __set_errno
-END(__accept)
diff --git a/libc/arch-arm/syscalls/accept4.S b/libc/arch-arm/syscalls/__accept4.S
similarity index 88%
rename from libc/arch-arm/syscalls/accept4.S
rename to libc/arch-arm/syscalls/__accept4.S
index 6d14e79..9a6874b 100644
--- a/libc/arch-arm/syscalls/accept4.S
+++ b/libc/arch-arm/syscalls/__accept4.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(accept4)
+ENTRY(__accept4)
     mov     ip, r7
     ldr     r7, =__NR_accept4
     swi     #0
@@ -11,4 +11,4 @@
     bxls    lr
     neg     r0, r0
     b       __set_errno
-END(accept4)
+END(__accept4)
diff --git a/libc/arch-arm/syscalls/socket.S b/libc/arch-arm/syscalls/__socket.S
similarity index 89%
rename from libc/arch-arm/syscalls/socket.S
rename to libc/arch-arm/syscalls/__socket.S
index 05fa529..d63028b 100644
--- a/libc/arch-arm/syscalls/socket.S
+++ b/libc/arch-arm/syscalls/__socket.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(socket)
+ENTRY(__socket)
     mov     ip, r7
     ldr     r7, =__NR_socket
     swi     #0
@@ -11,4 +11,4 @@
     bxls    lr
     neg     r0, r0
     b       __set_errno
-END(socket)
+END(__socket)