Remove the bulk of the NaCl port.

The NaCl port has not been actively maintained since before the 2.25
release.  The complementary GCC back-end was never contributed to GCC,
and we are given to understand that the current NaCl SDK has switched
to Clang and therefore cannot be used to build glibc anymore, so we
doubt that the port remains useful.

This commit simply removes the sysdeps/arm/nacl and sysdeps/nacl
directories and the abi-tags entry.

	Remove the NaCl port.
	* abi-tags: Remove .*-.*-nacl.* entry.
	* sysdeps/arm/nacl: Remove directory and contents.
	* sysdeps/nacl: Likewise.

1 files changed, 0 insertions, 53 deletions

diff --git a/sysdeps/arm/nacl/dl-machine.h b/sysdeps/arm/nacl/dl-machine.h
deleted file mode 100644
index 4b926ed604..0000000000
--- a/sysdeps/arm/nacl/dl-machine.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Machine-dependent ELF dynamic relocation inline functions.  ARM/NaCl version.
-   Copyright (C) 2015-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef dl_machine_h
-
-/* This is only needed for handling TEXTRELs and NaCl will never
-   support TEXTRELs at all.  */
-#define CLEAR_CACHE(start, end) __builtin_trap ()
-
-#endif
-
-/* The rest is just machine-specific.
-   This #include is outside the #ifndef because the parts of
-   dl-machine.h used only by dynamic-link.h are outside the guard.  */
-#include <sysdeps/arm/dl-machine.h>
-
-#ifdef dl_machine_h
-
-/* Initial entry point code for the dynamic linker.
-   The C function `_dl_start' is the real entry point;
-   its return value is the user program's entry point.  */
-#undef RTLD_START
-#define RTLD_START asm ("\
-.text\n\
-.globl _start\n\
-.type _start, %function\n\
-.p2align 4\n\
-_start:\n\
-	@ r0 has the pointer to the info block (see nacl_startup.h)\n\
-	mov r1, sp              @ Save stack base for __libc_stack_end.\n\
-	push {r0-r3}            @ Push those, maintaining alignment to 16.\n\
-	mov r0, sp              @ Pointer to {info, sp} is argument.\n\
-	sfi_bl _dl_start\n\
-	pop {r1-r4}             @ Restore stack, getting info block into r1.\n\
-	mov lr, #0              @ Return address for noreturn call.\n\
-	b _dl_start_user");
-
-#endif