This patchset introduces the idef-parser for target/hexagon.

It's the ninth iteration of the patchset and includes fixes suggested in
previous iterations.

`idef-parser` is a build-time tool built using flex and bison. Its aim
is to generate a large part of the tiny code generator frontend for
Hexagon. The prototype of idef-parser has been presented at KVM Forum
2019 ("QEMU-Hexagon: Automatic Translation of the ISA Manual Pseudocode
to Tiny Code Instructions"):

    https://www.youtube.com/watch?v=3EpnTYBOXCI

`target/hexagon/idef-parser/README.rst` provides an overview of the
parser and its inner working.

A couple of notes:

* These commits build successfully on the CI (including using clang),
  with one notable exception. Presently, the `build-user-hexagon` job
  fails due to not being able to find `flex`/`bison`. This is due to
  the `debian-hexagon-cross` container not being built by the CI.

  As such the `debian-hexagon-cross` container will have to be manually
  rebuilt before merging.

* `checkpatch.pl` complains about the `_Generic` macro `OUT_IMPL` in
  `idef-parser/parser-helpers.h` which we believe to be correctly
  formatted. The complaints concern the `:` in the type "labels" of the
  macro, and also the `default:` label.

* The eight patch, which introduces `flex`/`bison` as new build pre-
  requisites using `libvirt-ci`, will update `tests/lcitool/libvirt-ci`
  to a new upstream commit which includes these package mappings.

Alessandro Di Federico (4):
  target/hexagon: update MAINTAINERS for idef-parser
  target/hexagon: import README for idef-parser
  target/hexagon: prepare input for the idef-parser
  target/hexagon: call idef-parser functions

Anton Johansson (2):
  target/hexagon: import flex/bison to docker files
  target/hexagon: import parser for idef-parser

Niccolò Izzo (2):
  target/hexagon: introduce new helper functions
  target/hexagon: import additional tests

Paolo Montesel (4):
  target/hexagon: make slot number an unsigned
  target/hexagon: make helper functions non-static
  target/hexagon: expose next PC in DisasContext
  target/hexagon: import lexer for idef-parser

 .gitlab-ci.d/cirrus/freebsd-12.vars           |    2 +-
 .gitlab-ci.d/cirrus/freebsd-13.vars           |    2 +-
 .gitlab-ci.d/cirrus/macos-11.vars             |    2 +-
 .gitlab-ci.d/windows.yml                      |    2 +
 MAINTAINERS                                   |    9 +
 meson_options.txt                             |    3 +
 target/hexagon/README                         |    5 +
 target/hexagon/gen_helper_funcs.py            |   17 +-
 target/hexagon/gen_helper_protos.py           |   17 +-
 target/hexagon/gen_idef_parser_funcs.py       |  128 +
 target/hexagon/gen_tcg_funcs.py               |   41 +-
 target/hexagon/genptr.c                       |  241 +-
 target/hexagon/genptr.h                       |   45 +
 target/hexagon/hex_common.py                  |   10 +
 target/hexagon/idef-parser/README.rst         |  722 +++++
 target/hexagon/idef-parser/idef-parser.h      |  253 ++
 target/hexagon/idef-parser/idef-parser.lex    |  471 ++++
 target/hexagon/idef-parser/idef-parser.y      |  961 +++++++
 target/hexagon/idef-parser/macros.inc         |  140 +
 target/hexagon/idef-parser/parser-helpers.c   | 2346 +++++++++++++++++
 target/hexagon/idef-parser/parser-helpers.h   |  372 +++
 target/hexagon/idef-parser/prepare            |   24 +
 target/hexagon/macros.h                       |   11 +-
 target/hexagon/meson.build                    |  138 +-
 target/hexagon/op_helper.c                    |   29 +-
 target/hexagon/op_helper.h                    |   37 +
 target/hexagon/translate.c                    |    3 +-
 target/hexagon/translate.h                    |    1 +
 tests/docker/dockerfiles/alpine.docker        |    6 +-
 tests/docker/dockerfiles/centos8.docker       |    7 +-
 tests/docker/dockerfiles/debian-amd64.docker  |    2 +
 .../dockerfiles/debian-arm64-cross.docker     |    6 +-
 tests/docker/dockerfiles/debian-native.docker |    3 +
 .../dockerfiles/debian-riscv64-cross.docker   |    3 +
 .../dockerfiles/debian-s390x-cross.docker     |    6 +-
 .../dockerfiles/debian-tricore-cross.docker   |    1 +
 tests/docker/dockerfiles/debian10.docker      |    3 +
 .../dockerfiles/fedora-i386-cross.docker      |    3 +
 .../dockerfiles/fedora-win32-cross.docker     |    3 +
 .../dockerfiles/fedora-win64-cross.docker     |    3 +
 tests/docker/dockerfiles/fedora.docker        |    5 +-
 tests/docker/dockerfiles/opensuse-leap.docker |    5 +-
 tests/docker/dockerfiles/ubuntu1804.docker    |    4 +-
 tests/docker/dockerfiles/ubuntu2004.docker    |    5 +-
 tests/lcitool/libvirt-ci                      |    2 +-
 tests/lcitool/projects/qemu.yml               |   20 +-
 tests/tcg/hexagon/Makefile.target             |   28 +-
 tests/tcg/hexagon/crt.S                       |   14 +
 tests/tcg/hexagon/test_abs.S                  |   17 +
 tests/tcg/hexagon/test_bitcnt.S               |   40 +
 tests/tcg/hexagon/test_bitsplit.S             |   22 +
 tests/tcg/hexagon/test_call.S                 |   64 +
 tests/tcg/hexagon/test_clobber.S              |   29 +
 tests/tcg/hexagon/test_cmp.S                  |   31 +
 tests/tcg/hexagon/test_dotnew.S               |   38 +
 tests/tcg/hexagon/test_ext.S                  |   13 +
 tests/tcg/hexagon/test_fibonacci.S            |   30 +
 tests/tcg/hexagon/test_hl.S                   |   16 +
 tests/tcg/hexagon/test_hwloops.S              |   19 +
 tests/tcg/hexagon/test_jmp.S                  |   22 +
 tests/tcg/hexagon/test_lsr.S                  |   36 +
 tests/tcg/hexagon/test_mpyi.S                 |   17 +
 tests/tcg/hexagon/test_packet.S               |   29 +
 tests/tcg/hexagon/test_reorder.S              |   33 +
 tests/tcg/hexagon/test_round.S                |   29 +
 tests/tcg/hexagon/test_vavgw.S                |   31 +
 tests/tcg/hexagon/test_vcmpb.S                |   30 +
 tests/tcg/hexagon/test_vcmpw.S                |   30 +
 tests/tcg/hexagon/test_vlsrw.S                |   20 +
 tests/tcg/hexagon/test_vmaxh.S                |   35 +
 tests/tcg/hexagon/test_vminh.S                |   35 +
 tests/tcg/hexagon/test_vpmpyh.S               |   28 +
 tests/tcg/hexagon/test_vspliceb.S             |   31 +
 73 files changed, 6770 insertions(+), 116 deletions(-)
 create mode 100644 target/hexagon/gen_idef_parser_funcs.py
 create mode 100644 target/hexagon/idef-parser/README.rst
 create mode 100644 target/hexagon/idef-parser/idef-parser.h
 create mode 100644 target/hexagon/idef-parser/idef-parser.lex
 create mode 100644 target/hexagon/idef-parser/idef-parser.y
 create mode 100644 target/hexagon/idef-parser/macros.inc
 create mode 100644 target/hexagon/idef-parser/parser-helpers.c
 create mode 100644 target/hexagon/idef-parser/parser-helpers.h
 create mode 100755 target/hexagon/idef-parser/prepare
 create mode 100644 target/hexagon/op_helper.h
 create mode 100644 tests/tcg/hexagon/crt.S
 create mode 100644 tests/tcg/hexagon/test_abs.S
 create mode 100644 tests/tcg/hexagon/test_bitcnt.S
 create mode 100644 tests/tcg/hexagon/test_bitsplit.S
 create mode 100644 tests/tcg/hexagon/test_call.S
 create mode 100644 tests/tcg/hexagon/test_clobber.S
 create mode 100644 tests/tcg/hexagon/test_cmp.S
 create mode 100644 tests/tcg/hexagon/test_dotnew.S
 create mode 100644 tests/tcg/hexagon/test_ext.S
 create mode 100644 tests/tcg/hexagon/test_fibonacci.S
 create mode 100644 tests/tcg/hexagon/test_hl.S
 create mode 100644 tests/tcg/hexagon/test_hwloops.S
 create mode 100644 tests/tcg/hexagon/test_jmp.S
 create mode 100644 tests/tcg/hexagon/test_lsr.S
 create mode 100644 tests/tcg/hexagon/test_mpyi.S
 create mode 100644 tests/tcg/hexagon/test_packet.S
 create mode 100644 tests/tcg/hexagon/test_reorder.S
 create mode 100644 tests/tcg/hexagon/test_round.S
 create mode 100644 tests/tcg/hexagon/test_vavgw.S
 create mode 100644 tests/tcg/hexagon/test_vcmpb.S
 create mode 100644 tests/tcg/hexagon/test_vcmpw.S
 create mode 100644 tests/tcg/hexagon/test_vlsrw.S
 create mode 100644 tests/tcg/hexagon/test_vmaxh.S
 create mode 100644 tests/tcg/hexagon/test_vminh.S
 create mode 100644 tests/tcg/hexagon/test_vpmpyh.S
 create mode 100644 tests/tcg/hexagon/test_vspliceb.S

--
2.35.1