Commit Graph

9 Commits

Author SHA1 Message Date
Peter Maydell ef30274865 Updates to decodetree.py for risc-v.
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Merge remote-tracking branch 'remotes/rth/tags/pull-dt-20181031' into staging

Updates to decodetree.py for risc-v.

# gpg: Signature made Wed 31 Oct 2018 16:52:07 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-dt-20181031:
  decodetree: Allow multiple input files
  decodetree: Remove "insn" argument from trans_* expanders
  decodetree: Add !extern flag to argument sets

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-01 18:28:29 +00:00
Richard Henderson 6699ae6a8e decodetree: Allow multiple input files
While it would be possible to concatenate input files with make,
passing the original input files to decodetree.py allows us to
generate error messages which allows compilation environments
(read: emacs) to next-error to the correct input file.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-31 16:48:58 +00:00
Richard Henderson 3a7be55465 decodetree: Remove "insn" argument from trans_* expanders
This allows trans_* expanders to be shared between decoders
for 32 and 16-bit insns, by not tying the expander to the
size of the insn that produced it.

This change requires adjusting the two existing users to match.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-31 16:48:54 +00:00
Richard Henderson abd04f9290 decodetree: Add !extern flag to argument sets
Allow argument sets to be shared between two decoders by avoiding
a re-declaration error.  Make sure that anonymous argument sets
and anonymous formats have unique names.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-31 16:48:32 +00:00
Cleber Rosa cbcdf1a951 scripts/decodetree.py: fix reference to attributes
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20181004161852.11673-9-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-30 21:13:54 -03:00
Cleber Rosa b25ab557c6 scripts/decodetree.py: remove unused imports
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181004161852.11673-8-crosa@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-10-26 17:17:32 +02:00
Bastian Koppelmann 83d7c40c92 scripts/decodetree: Fix insnmask not marked as global in main()
if '-w 16' was given as a cmdline args a local copy of insnmask
is set and not the global one.

Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20180319115846.9662-1-kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-03-26 22:34:07 +08:00
Richard Henderson 768055980b decodetree: Propagate return value from translate subroutines
Allow the translate subroutines to return false for invalid insns.

At present we can of course invoke an invalid insn exception from within
the translate subroutine, but in the short term this consolidates code.
In the long term it would allow the decodetree language to support
overlapping patterns for ISA extensions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180227232618.2908-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-02 11:03:45 +00:00
Richard Henderson 568ae7efae scripts: Add decodetree.py
To be used to decode ARM SVE, but could be used for any fixed-width ISA.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-22 15:44:07 -08:00