Add support for the GBZ80 and Z80N variants of the Z80 architecture, and add DWARF debug info support to the Z80 assembler.

	PR 25469
bfd	* archures.c: Add GBZ80 and Z80N machine values.
	* reloc.c: Add BFD_RELOC_Z80_16_BE.
	* coff-z80.c: Add support for new reloc.
	* coffcode.h: Add support for new machine values.
	* cpu-z80.c: Add support for new machine names.
	* elf32-z80.c: Add support for new reloc.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

binutils* readelf.c (get_machine_flags): Add support for Z80N machine
	number.

gas	* config/tc-z80.c: Add -gbz80 command line option to generate code
	for the GameBoy Z80.  Add support for generating DWARF.
	* config/tc-z80.h: Add support for DWARF debug information
	generation.
	* doc/c-z80.texi: Document new command line option.
	* testsuite/gas/z80/gbz80_all.d: New file.
	* testsuite/gas/z80/gbz80_all.s: New file.
	* testsuite/gas/z80/z80.exp: Run the new tests.
	* testsuite/gas/z80/z80n_all.d: New file.
	* testsuite/gas/z80/z80n_all.s: New file.
	* testsuite/gas/z80/z80n_reloc.d: New file.

include	* coff/internal.h (R_IMM16BE): Define.
	* elf/z80.h (EF_Z80_MACH_Z80N): Define.
	(R_Z80_16_BE): New reloc.

ld	* emulparams/elf32z80.sh: Use z80 emulation.
	* emultempl/z80.em: Make generic to both COFF and ELF Z80 emulations.
	* emultempl/z80elf.em: Delete.
	* testsuite/ld-elf/pr22450.d: Expect to fail for the Z80.
	* testsuite/ld-elf/sec64k.exp: Fix Z80 assembly.
	* testsuite/ld-unique/pr21529.s: Avoid register name conflict.
	* testsuite/ld-unique/unique.s: Likewise.
	* testsuite/ld-unique/unique_empty.s: Likewise.
	* testsuite/ld-unique/unique_shared.s: Likewise.
	* testsuite/ld-unique/unique.d: Updated expected output.
	* testsuite/ld-z80/arch_z80n.d: New file.
	* testsuite/ld-z80/comb_arch_z80_z80n.d: New file.
	* testsuite/ld-z80/labels.s: Add more labels.
	* testsuite/ld-z80/relocs.s: Add more reloc tests.
	* testsuite/ld-z80/relocs_f_z80n.d: New file

opcodes	* z80-dis.c: Add support for GBZ80 opcodes.

1 files changed, 15 insertions, 7 deletions

diff --git a/gas/doc/c-z80.texi b/gas/doc/c-z80.texi
index dd6332d..e768e38 100644
--- a/gas/doc/c-z80.texi
+++ b/gas/doc/c-z80.texi
@@ -31,19 +31,19 @@
 @table @gcctabopt
 @cindex @code{-z80} command-line option, Z80
 @item -z80
-Produce code for the Z80 processor. By default accepted undocumented
-operations with halves of index registers (@code{IXL}, @code{IXH}, @code{IYL}, @code{IYH}) and
-instuction @code{IN F,(C)}. Other useful undocumented instructions produces
-warnings. Undocumented instructions may not work on some CPUs, use
-them on your own risk.
+Produce code for the Zilog Z80 processor. By default accepted undocumented
+operations with halves of index registers (@code{IXL}, @code{IXH}, @code{IYL},
+@code{IYH}) and instuction @code{IN F,(C)}. Other useful undocumented
+instructions produces warnings. Undocumented instructions may not work on some
+CPUs, use them on your own risk.
 
 @cindex @code{-r800} command-line option, Z80
 @item -r800
-Produce code for the R800 processor.
+Produce code for the Ascii R800 processor.
 
 @cindex @code{-z180} command-line option, Z80
 @item -z180
-Produce code for the Z180 processor.
+Produce code for the Zilog Z180 processor.
 
 @cindex @code{-ez80} command-line option, Z80
 @item -ez80
@@ -53,6 +53,14 @@ Produce code for the eZ80 processor in Z80 memory mode by default.
 @item -ez80-adl
 Produce code for the eZ80 processor in ADL memory mode by default.
 
+@cindex @code{-gbz80} command-line option, Z80
+@item -gbz80
+Produce code for the GameBoy Z80 processor.
+
+@cindex @code{-z80n} command-line option, Z80
+@item -z80n
+Produce code for the Z80N processor.
+
 @cindex @code{-local-prefix} command-line option, Z80
 @item  -local-prefix=@var{prefix}
 Mark all labels with specified prefix as local. But such label can be