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Link PlusArg to emulator command line options

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- adds a mutable singleton (PlusArgArtefacts) to store information
  about Rocket PlusArgs
- adds methods to PlusArgArtefacts to emit C snippets that are
  consumed by emulator.cc for correct argument parsing and help text
  generation
- emits snippets in $(CONFIG).plusArgs via BaseCoreplex-set
  ElaborationArtefacts
- modify emulator/Makefrag-verilator to include $(CONFIG).plusArgs
- cleanup help text (docstring) for existing PlusArgs

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@gmail.com>
This commit is contained in:
Schuyler Eldridge
2018-01-15 14:21:09 -05:00
parent 8799508b1f
commit e52d52ae99
6 changed files with 71 additions and 25 deletions
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2
emulator/Makefrag-verilator
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@ -60,7 +60,7 @@ VERILATOR_FLAGS := --top-module $(MODEL) \
--output-split-cfuncs 20000 \
-Wno-STMTDLY --x-assign unique \
-I$(base_dir)/vsrc \
-O3 -CFLAGS "$(CXXFLAGS) -DVERILATOR -DTEST_HARNESS=V$(MODEL) -include $(base_dir)/csrc/verilator.h"
-O3 -CFLAGS "$(CXXFLAGS) -DVERILATOR -DTEST_HARNESS=V$(MODEL) -include $(base_dir)/csrc/verilator.h -include $(generated_dir)/$(CONFIG).plusArgs"
cppfiles = $(addprefix $(base_dir)/csrc/, $(addsuffix .cc, $(CXXSRCS)))
headers = $(wildcard $(base_dir)/csrc/*.h)