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Add support to the ARC disassembler for selecting instruction classes.

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gas	* testsuite/gas/arc/dsp.d: New file.
	* testsuite/gas/arc/dsp.s: Likewise.
	* testsuite/gas/arc/fpu.d: Likewise.
	* testsuite/gas/arc/fpu.s: Likewise.
	* testsuite/gas/arc/ext2op.d: Add specific disassembler option.
	* testsuite/gas/arc/ext3op.d: Likewise.
	* testsuite/gas/arc/tdpfp.d: Likewise.
	* testsuite/gas/arc/tfpuda.d: Likewise.

opcodes	* arc-dis.c (skipclass): New structure.
	(decodelist): New variable.
	(is_compatible_p): New function.
	(new_element): Likewise.
	(skip_class_p): Likewise.
	(find_format_from_table): Use skip_class_p function.
	(find_format): Decode first the extension instructions.
	(print_insn_arc): Select either ARCEM or ARCHS based on elf
	e_flags.
	(parse_option): New function.
	(parse_disassembler_options): Likewise.
	(print_arc_disassembler_options): Likewise.
	(print_insn_arc): Use parse_disassembler_options function.  Proper
	select ARCv2 cpu variant.
	* disassemble.c (disassembler_usage): Add ARC disassembler
	options.

binutils* doc/binutils.texi (objdump): Add ARC disassembler options.
	* testsuite/binutils-all/arc/dsp.s: New file.
	* testsuite/binutils-all/arc/objdump.exp: Likewise.

include	* dis-asm.h: Declare print_arc_disassembler_options.
This commit is contained in:
Claudiu Zissulescu
2016-07-20 17:08:07 +01:00
committed by Nick Clifton
parent 0064d22386
commit 37fd5ef3ec
19 changed files with 716 additions and 124 deletions
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30
binutils/doc/binutils.texi
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@@ -2240,6 +2240,27 @@ some targets. If it is necessary to specify more than one
disassembler option then multiple @option{-M} options can be used or
can be placed together into a comma separated list.
For the ARC architecture the option can be used to specify the extra
instruction classes that should be disassembled. A comma separated
list of one or more of the following values should be used:
@table @code
@item dsp
Recognize DSP instructions.
@item spfp
Recognize FPX SP instructions.
@item dpfp
Recognize FPX DP instructions.
@item quarkse_em
Recognize FPU QuarkSE-EM instructions.
@item fpuda
Recognize double assist FPU instructions.
@item fpus
Recognize single precision FPU instructions.
@item fpud
Recognize double precision FPU instructions.
@end table
If the target is an ARM architecture then this switch can be used to
select which register name set is used during disassembler. Specifying
@option{-M reg-names-std} (the default) will select the register names as
@@ -2367,6 +2388,15 @@ ROM dumps). In these cases, the function entry mask would otherwise
be decoded as VAX instructions, which would probably lead the rest
of the function being wrongly disassembled.
For ARC, @option{dsp} controls the printing of DSP instructions,
@option{spfp} selects the printing of FPX single precision FP
instructions, @option{dpfp} selects the printing of FPX double
precision FP instructions, @option{quarkse_em} selects the printing of
special QuarkSE-EM instructions, @option{fpuda} selects the printing
of double precision assist instructions, @option{fpus} selects the
printing of FPU single precision FP instructions, while @option{fpud}
selects the printing of FPU souble precision FP instructions.
@item -p
@itemx --private-headers
Print information that is specific to the object file format. The exact