Add support for the GBZ80, Z180, and eZ80 variants of the Z80 architecure. Add an ELF based target for these as well.

	PR 25224
bfd	* Makefile.am: Add z80-elf target support.
	* configure.ac: Likewise.
	* targets.c: Likewise.
	* config.bfd: Add z80-elf target support and new arches: ez80 and z180.
	* elf32-z80.c: New file.
	* archures.c: Add new z80 architectures: eZ80 and Z180.
	* coffcode.h: Likewise.
	* cpu-z80.c: Likewise.
	* bfd-in2.h: Likewise plus additional Z80 relocations.
	* coff-z80.c: Add new relocations for Z80 target and local label check.

gas	* config/tc-z80.c: Add new architectures: Z180 and eZ80. Add support
	for assembler code generated by SDCC. Add new relocation types. Add
	z80-elf target support.
	* config/tc-z80.h: Add z80-elf target support. Enable dollar local
	labels. Local labels starts from ".L".
	* testsuite/gas/all/fwdexp.d: Fix failure due to symbol conflict.
	* testsuite/gas/all/fwdexp.s: Likewise.
	* testsuite/gas/z80/suffix.d: Fix failure on ELF target.
	* testsuite/gas/z80/z80.exp: Add new tests
	* testsuite/gas/z80/dollar.d: New file.
	* testsuite/gas/z80/dollar.s: New file.
	* testsuite/gas/z80/ez80_adl_all.d: New file.
	* testsuite/gas/z80/ez80_adl_all.s: New file.
	* testsuite/gas/z80/ez80_adl_suf.d: New file.
	* testsuite/gas/z80/ez80_isuf.s: New file.
	* testsuite/gas/z80/ez80_z80_all.d: New file.
	* testsuite/gas/z80/ez80_z80_all.s: New file.
	* testsuite/gas/z80/ez80_z80_suf.d: New file.
	* testsuite/gas/z80/r800_extra.d: New file.
	* testsuite/gas/z80/r800_extra.s: New file.
	* testsuite/gas/z80/r800_ii8.d: New file.
	* testsuite/gas/z80/r800_z80_doc.d: New file.
	* testsuite/gas/z80/z180.d: New file.
	* testsuite/gas/z80/z180.s: New file.
	* testsuite/gas/z80/z180_z80_doc.d: New file.
	* testsuite/gas/z80/z80_doc.d: New file.
	* testsuite/gas/z80/z80_doc.s: New file.
	* testsuite/gas/z80/z80_ii8.d: New file.
	* testsuite/gas/z80/z80_ii8.s: New file.
	* testsuite/gas/z80/z80_in_f_c.d: New file.
	* testsuite/gas/z80/z80_in_f_c.s: New file.
	* testsuite/gas/z80/z80_op_ii_ld.d: New file.
	* testsuite/gas/z80/z80_op_ii_ld.s: New file.
	* testsuite/gas/z80/z80_out_c_0.d: New file.
	* testsuite/gas/z80/z80_out_c_0.s: New file.
	* testsuite/gas/z80/z80_reloc.d: New file.
	* testsuite/gas/z80/z80_reloc.s: New file.
	* testsuite/gas/z80/z80_sli.d: New file.
	* testsuite/gas/z80/z80_sli.s: New file.

ld	* Makefile.am: Add new target z80-elf
	* configure.tgt: Likewise.
	* emultempl/z80.em: Add support for eZ80 and Z180 architectures.
	* emulparams/elf32z80.sh: New file.
	* emultempl/z80elf.em: Likewise.
	* testsuite/ld-z80/arch_ez80_adl.d: Likewise.
	* testsuite/ld-z80/arch_ez80_z80.d: Likewise.
	* testsuite/ld-z80/arch_r800.d: Likewise.
	* testsuite/ld-z80/arch_z180.d: Likewise.
	* testsuite/ld-z80/arch_z80.d: Likewise.
	* testsuite/ld-z80/comb_arch_ez80_z80.d: Likewise.
	* testsuite/ld-z80/comb_arch_z180.d: Likewise.
	* testsuite/ld-z80/labels.s: Likewise.
	* testsuite/ld-z80/relocs.s: Likewise.
	* testsuite/ld-z80/relocs_b_ez80.d: Likewise.
	* testsuite/ld-z80/relocs_b_z80.d: Likewise.
	* testsuite/ld-z80/relocs_f_z80.d: Likewise.
	* testsuite/ld-z80/z80.exp: Likewise.

opcodes	* z80-dis.c: Add support for eZ80 and Z80 instructions.

3 files changed, 62 insertions, 0 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index bc66851..e28c168 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2020-01-02  Sergey Belyashov  <sergey.belyashov@gmail.com>
+
+	* coff/internal.h: Add defintions of Z80 reloc names.
+
 2020-01-02  Christian Biesinger  <cbiesinger@google.com>
 
 	* opcode/s12z.h: Undef REG_Y.
diff --git a/include/coff/internal.h b/include/coff/internal.h
index f7ff2cd..24ac1dc 100644
--- a/include/coff/internal.h
+++ b/include/coff/internal.h
@@ -808,5 +808,11 @@ struct internal_reloc
 #define R_OFF8    0x32		/* 8 bit signed abs, for (i[xy]+d) */
 #define R_IMM24   0x33          /* 24 bit abs */
 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
+#define R_BYTE0  0x34		/* first (lowest) 8 bits of multibyte value */
+#define R_BYTE1  0x35		/* second 8 bits of multibyte value */
+#define R_BYTE2  0x36		/* third 8 bits of multibyte value */
+#define R_BYTE3  0x37		/* fourth (highest) 8 bits of multibyte value */
+#define R_WORD0  0x38		/* lowest 16 bits of 32 or 24 bit value */
+#define R_WORD1  0x39		/* highest 16 bits of 32 or 24 bit value */
 
 #endif /* GNU_COFF_INTERNAL_H */
diff --git a/include/elf/z80.h b/include/elf/z80.h
new file mode 100644
index 0000000..a7f72c9
--- /dev/null
+++ b/include/elf/z80.h
@@ -0,0 +1,52 @@
+/* Z80 ELF support for BFD.
+   Copyright (C) 1999-2019 Free Software Foundation, Inc.
+   Contributed by Sergey Belyashov <sergey.belyashov@gmail.com>
+
+   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_Z80_H
+#define _ELF_Z80_H
+
+#include "elf/reloc-macros.h"
+
+/* Processor specific flags for the ELF header e_flags field.  */
+#define EF_Z80_MACH_Z80      0x01
+#define EF_Z80_MACH_Z180     0x02
+#define EF_Z80_MACH_R800     0x03
+#define EF_Z80_MACH_EZ80_Z80 0x04
+#define EF_Z80_MACH_EZ80_ADL 0x84
+#define EF_Z80_MACH_GBZ80    0x05
+#define EF_Z80_MACH_MSK      0xff
+
+/* Relocations.  */
+START_RELOC_NUMBERS (elf_z80_reloc_type)
+     RELOC_NUMBER (R_Z80_NONE,		0)
+     RELOC_NUMBER (R_Z80_8, 		1)
+     RELOC_NUMBER (R_Z80_8_DIS,		2)
+     RELOC_NUMBER (R_Z80_8_PCREL,	3)
+     RELOC_NUMBER (R_Z80_16, 		4)
+     RELOC_NUMBER (R_Z80_24, 		5)
+     RELOC_NUMBER (R_Z80_32, 		6)
+     RELOC_NUMBER (R_Z80_BYTE0,		7)
+     RELOC_NUMBER (R_Z80_BYTE1,		8)
+     RELOC_NUMBER (R_Z80_BYTE2,		9)
+     RELOC_NUMBER (R_Z80_BYTE3,		10)
+     RELOC_NUMBER (R_Z80_WORD0,		11)
+     RELOC_NUMBER (R_Z80_WORD1,		12)
+END_RELOC_NUMBERS (R_Z80_max)
+
+#endif /* _ELF_Z80_H */