Remove CR16C support

I think it is past time to remove CR16C support.  CR16C was added in
2004, and only for ld.  gas and binutils support is lacking, and there
have been no commits to bfd/elf32-cr16c.c other than warning fixes or
global maintainers making changes to all targets.  I see no maintainer
listed for CR16C, and no commits from anyone at NSC supporting the
target.  Furthermore, at the time the CR16 support was added in 2007,
config.sub was changed upstream to no longer recognise cr16c as a
valid cpu.  That means the CR16C ld support is only available as a
secondary target by configuring with, for example,
--enable-targets=all or --enable-targets=cr16c-unknown-elf.  No
testing of the CR16C target is possible.

include/
	* elf/cr16c.h: Delete.
bfd/
	* cpu-cr16c.c: Delete.
	* elf32-cr16c.c: Delete.
	* Makefile.am,
	* archures.c,
	* config.bfd,
	* configure.ac,
	* reloc.c,
	* targets.c: Remove cr16c support.
	* Makefile.in,
	* bfd-in2.h,
	* configure,
	* libbfd.h,
	* po/SRC-POTFILES.in: Regenerate.
ld/
	* emulparams/elf32cr16c.sh: Delete.
	* scripttempl/elf32cr16c.sc: Delete.
	* Makefile.am,
	* configure.tgt: Remove cr16c support.
	* NEWS: Mention removal of cr16c.
	* Makefile.in,
	* po/BLD-POTFILES.in: Regenerate.

2 files changed, 4 insertions, 258 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index 44c71a7..64e59d9 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2019-11-07  Alan Modra  <amodra@gmail.com>
+
+	* elf/cr16c.h: Delete.
+
 2019-10-29  Andrew Eikum  <aeikum@codeweavers.com>
 
 	* coff/internal.h (struct internal_extra_pe_filehdr): Use ints
diff --git a/include/elf/cr16c.h b/include/elf/cr16c.h
deleted file mode 100644
index 523e548..0000000
--- a/include/elf/cr16c.h
+++ /dev/null
@@ -1,258 +0,0 @@
-/* CR16C ELF support for BFD.
-   Copyright (C) 2004-2019 Free Software Foundation, Inc.
-
-   This file is part of BFD, the Binary File Descriptor library.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _ELF_CR16C_H
-#define _ELF_CR16C_H
-
-#include "bfd.h"
-#include "elf/reloc-macros.h"
-
-/* Creating indices for reloc_map_index array.  */
-START_RELOC_NUMBERS (elf_cr16c_reloc_type)
-     RELOC_NUMBER (RINDEX_16C_NUM08,		0)
-     RELOC_NUMBER (RINDEX_16C_NUM08_C,		1)
-     RELOC_NUMBER (RINDEX_16C_NUM16,		2)
-     RELOC_NUMBER (RINDEX_16C_NUM16_C,		3)
-     RELOC_NUMBER (RINDEX_16C_NUM32,		4)
-     RELOC_NUMBER (RINDEX_16C_NUM32_C,		5)
-     RELOC_NUMBER (RINDEX_16C_DISP04,		6)
-     RELOC_NUMBER (RINDEX_16C_DISP04_C,		7)
-     RELOC_NUMBER (RINDEX_16C_DISP08,		8)
-     RELOC_NUMBER (RINDEX_16C_DISP08_C,		9)
-     RELOC_NUMBER (RINDEX_16C_DISP16,		10)
-     RELOC_NUMBER (RINDEX_16C_DISP16_C,		11)
-     RELOC_NUMBER (RINDEX_16C_DISP24,		12)
-     RELOC_NUMBER (RINDEX_16C_DISP24_C,		13)
-     RELOC_NUMBER (RINDEX_16C_DISP24a,		14)
-     RELOC_NUMBER (RINDEX_16C_DISP24a_C,	15)
-     RELOC_NUMBER (RINDEX_16C_REG04,		16)
-     RELOC_NUMBER (RINDEX_16C_REG04_C,		17)
-     RELOC_NUMBER (RINDEX_16C_REG04a,		18)
-     RELOC_NUMBER (RINDEX_16C_REG04a_C,		19)
-     RELOC_NUMBER (RINDEX_16C_REG14,		20)
-     RELOC_NUMBER (RINDEX_16C_REG14_C,		21)
-     RELOC_NUMBER (RINDEX_16C_REG16,		22)
-     RELOC_NUMBER (RINDEX_16C_REG16_C,		23)
-     RELOC_NUMBER (RINDEX_16C_REG20,		24)
-     RELOC_NUMBER (RINDEX_16C_REG20_C,		25)
-     RELOC_NUMBER (RINDEX_16C_ABS20,		26)
-     RELOC_NUMBER (RINDEX_16C_ABS20_C,		27)
-     RELOC_NUMBER (RINDEX_16C_ABS24,		28)
-     RELOC_NUMBER (RINDEX_16C_ABS24_C,		29)
-     RELOC_NUMBER (RINDEX_16C_IMM04,		30)
-     RELOC_NUMBER (RINDEX_16C_IMM04_C,		31)
-     RELOC_NUMBER (RINDEX_16C_IMM16,		32)
-     RELOC_NUMBER (RINDEX_16C_IMM16_C,		33)
-     RELOC_NUMBER (RINDEX_16C_IMM20,		34)
-     RELOC_NUMBER (RINDEX_16C_IMM20_C,		35)
-     RELOC_NUMBER (RINDEX_16C_IMM24,		36)
-     RELOC_NUMBER (RINDEX_16C_IMM24_C,		37)
-     RELOC_NUMBER (RINDEX_16C_IMM32,		38)
-     RELOC_NUMBER (RINDEX_16C_IMM32_C,		39)
-END_RELOC_NUMBERS (RINDEX_16C_MAX)
-
-/* CR16C Relocation Types ('cr_reloc_type' entry in the reloc_map structure).
-   The relocation constant name is determined as follows :
-
-   R_16C_<format><size>[_C]
-
-   Where :
-
-     <format> is one of the following:
-	NUM  - R_NUMBER mnemonic,
-	DISP - R_16C_DISPL mnemonic,
-	REG  - R_16C_REGREL mnemonic,
-	ABS  - R_16C_ABS mnemonic,
-	IMM  - R_16C_IMMED mnemonic,
-     <size> stands for R_S_16C_<size> 
-     _C means 'code label' and is only added when R_ADDRTYPE subfield 
-     is of type R_CODE_ADDR.  */
-   
-/* The table below shows what the hex digits in the definition of the
-   relocation type constants correspond to.
-   ------------------------------------------------------------------
-	R_SIZESP	R_FORMAT	R_RELTO	      R_ADDRTYPE
-   ------------------------------------------------------------------  */
-/*	R_S_16C_08	R_NUMBER 	R_ABS 	      R_ADDRESS */
-#define R_16C_NUM08	0X0001
-
-/*	R_S_16C_08	R_NUMBER 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_NUM08_C	0X0006
-
-/*	R_S_16C_16	R_NUMBER 	R_ABS 	      R_ADDRESS */
-#define R_16C_NUM16	0X1001
-
-/*	R_S_16C_16	R_NUMBER 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_NUM16_C 	0X1006
-
-/*      R_S_16C_32      R_NUMBER	R_ABS	      R_ADDRESS */
-#define R_16C_NUM32     0X2001
-
-/*      R_S_16C_32      R_NUMBER	R_ABS	      R_CODE_ADDR */
-#define R_16C_NUM32_C   0X2006
-
-/*	R_S_16C_04	R_16C_DISPL 	R_PCREL	      R_ADDRESS */
-#define R_16C_DISP04	0X5411
-
-/*	R_S_16C_04	R_16C_DISPL 	R_PCREL	      R_CODE_ADDR */
-#define R_16C_DISP04_C	0X5416
-
-/*	R_S_16C_08	R_16C_DISPL 	R_PCREL	      R_ADDRESS */
-#define R_16C_DISP08	0X0411
-
-/*	R_S_16C_08	R_16C_DISPL 	R_PCREL	      R_CODE_ADDR */
-#define R_16C_DISP08_C	0X0416
-
-/*	R_S_16C_16	R_16C_DISPL 	R_PCREL	      R_ADDRESS */
-#define R_16C_DISP16	0X1411
-
-/*	R_S_16C_16	R_16C_DISPL 	R_PCREL	      R_CODE_ADDR */
-#define R_16C_DISP16_C	0X1416
-
-/*	R_S_16C_24	R_16C_DISPL 	R_PCREL	      R_ADDRESS */
-#define R_16C_DISP24	0X7411
-
-/*	R_S_16C_24	R_16C_DISPL 	R_PCREL	      R_CODE_ADDR */
-#define R_16C_DISP24_C	0X7416
-
-/*	R_S_16C_24a	R_16C_DISPL 	R_PCREL	      R_ADDRESS */
-#define R_16C_DISP24a	0X6411
-
-/*	R_S_16C_24a	R_16C_DISPL 	R_PCREL	      R_CODE_ADDR */
-#define R_16C_DISP24a_C	0X6416
-
-/*	R_S_16C_04	R_16C_REGREL 	R_ABS 	      R_ADDRESS */
-#define R_16C_REG04	0X5201
-
-/*	R_S_16C_04	R_16C_REGREL 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_REG04_C	0X5206
-
-/*	R_S_16C_04_a	R_16C_REGREL 	R_ABS 	      R_ADDRESS */
-#define R_16C_REG04a	0X4201
-
-/*	R_S_16C_04_a	R_16C_REGREL 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_REG04a_C	0X4206
-
-/*	R_S_16C_14	R_16C_REGREL 	R_ABS 	      R_ADDRESS */
-#define R_16C_REG14	0X3201
-
-/*	R_S_16C_14	R_16C_REGREL 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_REG14_C	0X3206
-
-/*	R_S_16C_16	R_16C_REGREL 	R_ABS 	      R_ADDRESS */
-#define R_16C_REG16	0X1201
-
-/*	R_S_16C_16	R_16C_REGREL 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_REG16_C	0X1206
-
-/*	R_S_16C_20	R_16C_REGREL 	R_ABS 	      R_ADDRESS */
-#define R_16C_REG20	0X8201
-
-/*	R_S_16C_20	R_16C_REGREL 	R_ABS 	      R_CODE_ADDR */
-#define R_16C_REG20_C	0X8206
-
-/*      R_S_16C_20      R_16C_ABS	R_ABS	      R_ADDRESS */
-#define R_16C_ABS20     0X8101
-
-/*      R_S_16C_20      R_16C_ABS	R_ABS	      R_CODE_ADDR */
-#define R_16C_ABS20_C   0X8106
-
-/*      R_S_16C_24      R_16C_ABS	R_ABS	      R_ADDRESS */
-#define R_16C_ABS24     0X7101
-
-/*      R_S_16C_24      R_16C_ABS	R_ABS	      R_CODE_ADDR */
-#define R_16C_ABS24_C   0X7106
-
-/*      R_S_16C_04      R_16C_IMMED	R_ABS	      R_ADDRESS */
-#define R_16C_IMM04     0X5301
-
-/*      R_S_16C_04      R_16C_IMMED	R_ABS	      R_CODE_ADDR */
-#define R_16C_IMM04_C   0X5306
-
-/*      R_S_16C_16      R_16C_IMMED	R_ABS	      R_ADDRESS */
-#define R_16C_IMM16     0X1301
-
-/*      R_S_16C_16      R_16C_IMMED	R_ABS	      R_CODE_ADDR */
-#define R_16C_IMM16_C   0X1306
-
-/*      R_S_16C_20      R_16C_IMMED	R_ABS	      R_ADDRESS */
-#define R_16C_IMM20     0X8301
-
-/*      R_S_16C_20      R_16C_IMMED	R_ABS	      R_CODE_ADDR */
-#define R_16C_IMM20_C   0X8306
-
-/*      R_S_16C_24      R_16C_IMMED	R_ABS	      R_ADDRESS */
-#define R_16C_IMM24     0X7301
-
-/*      R_S_16C_24      R_16C_IMMED	R_ABS	      R_CODE_ADDR */
-#define R_16C_IMM24_C   0X7306
-
-/*      R_S_16C_32      R_16C_IMMED	R_ABS	      R_ADDRESS */
-#define R_16C_IMM32     0X2301
-
-/*      R_S_16C_32      R_16C_IMMED	R_ABS	      R_CODE_ADDR */
-#define R_16C_IMM32_C   0X2306
-
-
-/* Relocation item type.  */
-#define   R_ADDRTYPE	 0x000f
-#define   R_ADDRESS      0x0001    /* Take address of symbol.  */
-#define   R_CODE_ADDR    0x0006    /* Take address of symbol divided by 2.  */
-
-/* Relocation action.  */
-#define   R_RELTO        0x00f0
-#define   R_ABS          0x0000    /* Keep symbol's address as such.  */
-#define   R_PCREL        0x0010    /* Subtract the pc address of hole.  */
-
-/* Relocation item data format.  */
-#define   R_FORMAT       0x0f00
-#define   R_NUMBER       0x0000    /* Retain as two's complement value.  */
-#define   R_16C_DISPL    0x0400    /* CR16C displacement type.  */
-#define   R_16C_ABS      0x0100    /* CR16C absolute type.  */
-#define   R_16C_REGREL   0x0200    /* CR16C register-relative type.  */
-#define   R_16C_IMMED    0x0300    /* CR16C immediate type.  */
-
-/* Relocation item size. */
-#define   R_SIZESP       0xf000
-#define   R_S_16C_04     0x5000
-#define   R_S_16C_04_a   0x4000
-#define   R_S_16C_08	 0x0000
-#define   R_S_16C_14     0x3000
-#define   R_S_16C_16	 0x1000
-#define   R_S_16C_20     0x8000
-#define   R_S_16C_24_a   0x6000
-#define   R_S_16C_24	 0x7000
-#define   R_S_16C_32     0x2000
-
-
-/* Processor specific section indices.  These sections do not actually
-   exist.  Symbols with a st_shndx field corresponding to one of these
-   values have a special meaning.  */
-
-/* Far common symbol.  */
-#define SHN_CR16C_FCOMMON	SHN_LORESERVE
-#define SHN_CR16C_NCOMMON	(SHN_LORESERVE + 1)
-
-typedef struct reloc_map
-{
-  unsigned short            cr_reloc_type;  /* CR relocation type.  */
-  bfd_reloc_code_real_type  bfd_reloc_enum; /* BFD relocation enum.  */
-} RELOC_MAP;
-
-#endif /* _ELF_CR16C_H */