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Peter Maydell 7e6c28be27 scripts/decodetree: Implement named field support 
Implement support for named fields, i.e.  where one field is defined
in terms of another, rather than directly in terms of bits extracted
from the instruction.

The new method referenced_fields() on all the Field classes returns a
list of fields that this field references.  This just passes through,
except for the new NamedField class.

We can then use referenced_fields() to:
 * construct a list of 'dangling references' for a format or
   pattern, which is the fields that the format/pattern uses but
   doesn't define itself
 * do a topological sort, so that we output "field = value"
   assignments in an order that means that we assign a field before
   we reference it in a subsequent assignment
 * check when we output the code for a pattern whether we need to
   fill in the format fields before or after the pattern fields, and
   do other error checking

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230523120447.728365-6-peter.maydell@linaro.org>
2023-05-30 10:55:39 -07:00
..
ci Add Kubernetes runner configuration 2023-05-24 12:26:40 -07:00
coccinelle cleanup: Tweak and re-run return_directly.cocci 2022-12-14 16:19:35 +01:00
codeconverter scripts/codeconverter: Update to latest version 2020-09-18 14:12:32 -04:00
coverage scripts/coverage: initial coverage comparison script 2023-04-04 15:16:29 +01:00
coverity-scan coverity: the definitive COMPONENTS.md update 2023-05-18 08:53:51 +02:00
kvm vmxcap: add tertiary execution controls 2022-05-12 14:23:19 +02:00
modules scripts/modules/module_block: Use Python 3 interpreter & add pseudo-main 2020-05-31 13:56:46 +02:00
oss-fuzz gitlab: add lsan suppression file to workaround tcmalloc issues 2023-02-02 10:44:23 +00:00
performance scripts/performance: Add dissect.py script 2020-07-14 22:22:22 +02:00
qapi qapi: Improve error message for description following section 2023-05-22 10:03:26 +02:00
qemu-guest-agent qemu-guest-agent: freeze-hook to ignore dpkg files as well 2018-08-23 18:46:25 +02:00
qemugdb scripts/gdb: implement 'qemu bt' 2021-01-12 12:38:03 +01:00
qmp python: rename qemu.aqmp to qemu.qmp 2022-04-21 11:01:00 -04:00
simplebench python: rename qemu.aqmp to qemu.qmp 2022-04-21 11:01:00 -04:00
tracetool tracetool: use relative paths for '#line' preprocessor directives 2023-04-24 13:53:44 -04:00
analyse-9p-simpletrace.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
analyse-locks-simpletrace.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
analyze-inclusions scripts/analyze-inclusions: drop qemu-common.h from analysis 2022-04-21 16:56:55 +04:00
analyze-migration.py analyze-migration.py: fix extract contents ('-x') errors 2021-10-23 20:28:56 +02:00
archive-source.sh meson: use subproject for keycodemapdb 2023-05-26 12:34:18 +02:00
block-coroutine-wrapper.py block-coroutine-wrapper: Introduce no_co_wrapper 2023-02-17 11:22:19 +01:00
check_sparse.py meson: move sparse detection to Meson and rewrite check_sparse.py 2020-10-04 18:36:23 +02:00
checkpatch.pl checkpatch: add qemu_bh_new/aio_bh_new checks 2023-04-28 11:31:54 +02:00
clean-header-guards.pl disas: Remove libvixl disassembler 2022-07-05 10:15:49 +02:00
clean-includes scripts/clean-includes: Improve --git commit message 2023-02-08 07:16:23 +01:00
cleanup-trace-events.pl scripts/cleanup-trace-events: Emit files in alphabetical order 2020-09-09 17:17:00 +01:00
cocci-macro-file.h compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
cpu-x86-uarch-abi.py python: rename qemu.aqmp to qemu.qmp 2022-04-21 11:01:00 -04:00
decodetree.py scripts/decodetree: Implement named field support 2023-05-30 10:55:39 -07:00
device-crash-test tests: Use configure-provided pyvenv for tests 2023-05-18 08:53:51 +02:00
disas-objdump.pl scripts: Switch to more portable Perl shebang 2017-05-10 10:19:24 +03:00
dump-guest-memory.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
entitlement.sh scripts/entitlement.sh: Use backward-compatible cp flags 2021-11-30 22:25:58 +01:00
extract-vsssdk-headers
feature_to_c.sh Add missing include statement for global xml_builtin 2022-11-06 09:48:42 +01:00
fix-multiline-comments.sh docs: move CODING_STYLE into the developer documentation 2021-02-24 11:05:21 +00:00
gensyscalls.sh linux-user: Add LoongArch syscall support 2022-07-04 11:08:57 +05:30
get_maintainer.pl get_maintainer: update repo URL to GitLab 2021-02-09 20:53:56 +00:00
git-submodule.sh scripts: check if .git exists before checking submodule status 2022-10-27 11:54:37 +01:00
git.orderfile scripts/git.orderfile: Display MAINTAINERS changes first 2023-01-13 16:22:57 +01:00
hxtool meson: generate hxtool files 2020-08-21 06:30:14 -04:00
kernel-doc scripts/kernel-doc: strip QEMU_ from function definitions 2021-03-24 14:24:40 +00:00
main.c configure, meson: move C++ compiler detection to meson.build 2022-10-01 21:16:36 +02:00
make-config-poison.sh meson: Avoid duplicates in generated config-poison.h again 2023-02-27 09:18:56 +01:00
make-release scripts/make-release: Only clone single branches to speed up the script 2022-12-15 15:02:35 +01:00
meson-buildoptions.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
meson-buildoptions.sh Migration Pull request 2023-05-18 11:07:06 -07:00
meson.build trace: move configuration from configure to Meson 2021-10-14 09:50:56 +02:00
minikconf.py meson: infrastructure for building emulators 2020-08-21 06:30:17 -04:00
modinfo-collect.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
modinfo-generate.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
mtest2make.py mtest2make.py: teach suite name that are just "PROJECT" 2023-04-20 11:17:34 +02:00
nsis.py scripts/nsis.py: Automatically package required DLLs of QEMU executables 2022-10-31 10:06:11 +01:00
probe-gdb-support.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
qapi-gen.py qapi: move generator entrypoint into package 2020-10-10 11:37:47 +02:00
qemu-binfmt-conf.sh scripts/qemu-binfmt-conf: Add LoongArch to qemu_get_family() 2022-07-05 16:17:53 +05:30
qemu-gdb.py scripts/gdb: implement 'qemu bt' 2021-01-12 12:38:03 +01:00
qemu-stamp.py meson, configure: move --with-pkgversion, CONFIG_STAMP to meson 2022-05-07 07:46:58 +02:00
qemu-trace-stap qemu-trace-stap: changing SYSTEMTAP_TAPSET considered harmful. 2021-07-12 17:37:06 +01:00
qemu-version.sh build-sys: fix git version from -version 2020-10-12 11:50:23 -04:00
refresh-pxe-roms.sh
render_block_graph.py python: rename qemu.aqmp to qemu.qmp 2022-04-21 11:01:00 -04:00
replay-dump.py nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
shaderinclude.py build-sys: fix crlf-ending C code 2023-02-02 10:44:23 +00:00
signrom.py drop "from __future__ import print_function" 2020-02-07 15:15:16 +01:00
simpletrace.py docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
symlink-install-tree.py Add information how to fix common build error on Windows in symlink-install-tree 2023-05-16 09:14:18 +02:00
test-driver.py mtest2make: hide output of successful tests 2020-09-08 07:17:09 +02:00
tracetool.py tracetool: add output filename command-line argument 2021-01-04 14:24:58 +00:00
u2f-setup-gen.py scripts: Add u2f-setup-gen script 2020-08-31 08:23:39 +02:00
undefsym.py build: fix macOS --enable-modules build 2020-10-22 11:53:52 -04:00
update-linux-headers.sh update-linux-headers.sh: Add missing kernel headers. 2023-04-28 14:03:52 +02:00
update-mips-syscall-args.sh linux-user, mips: update syscall-args-o32.c.inc to Linux v5.13 2021-07-13 13:59:59 +02:00
update-syscalltbl.sh linux-user, scripts: add a script to update syscall.tbl 2020-03-20 16:02:00 +01:00
userfaultfd-wrlat.py migration: introduce 'userfaultfd-wrlat.py' script 2021-02-08 11:19:51 +00:00
vmstate-static-checker.py vmstate-static-checker: Recognize "num" field 2023-04-27 10:18:26 +02:00
xen-detect.c meson, configure: move Xen detection to meson 2022-05-07 07:46:58 +02:00