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https://github.com/verilator/verilator.git
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Generate compile_commands.json using bear (#4463)
This commit is contained in:
Kamil Rakoczy
GitHub
parent
70b11f91b4
commit
6e977e1024
@ -71,8 +71,8 @@ if [ "$CI_BUILD_STAGE_NAME" = "build" ]; then
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sudo apt-get install libsystemc libsystemc-dev
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fi
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if [ "$CI_RUNS_ON" = "ubuntu-22.04" ]; then
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sudo apt-get install mold ||
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sudo apt-get install mold
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sudo apt-get install bear mold ||
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sudo apt-get install bear mold
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fi
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if [ "$COVERAGE" = 1 ]; then
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yes yes | sudo cpan -fi Parallel::Forker
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@ -126,7 +126,7 @@ Those developing Verilator itself may also want these (see internals.rst):
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::
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sudo apt-get install clang clang-format-14 cmake gdb gprof graphviz lcov
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sudo apt-get install libclang-dev yapf3
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sudo apt-get install libclang-dev yapf3 bear
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sudo pip3 install clang sphinx sphinx_rtd_theme sphinxcontrib-spelling breathe ruff
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cpan install Pod::Perldoc
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cpan install Parallel::Forker
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@ -19,7 +19,13 @@ import multiprocessing
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import tempfile
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import clang.cindex
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from clang.cindex import CursorKind, Index, TranslationUnitSaveError, TranslationUnitLoadError
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from clang.cindex import (
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CursorKind,
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Index,
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TranslationUnitSaveError,
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TranslationUnitLoadError,
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CompilationDatabase,
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)
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def fully_qualified_name(node):
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@ -761,7 +767,7 @@ def run_analysis(ccl: Iterable[CompileCommand], pccl: Iterable[CompileCommand],
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is_ignored_def, is_ignored_call)
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for compile_command in ccl:
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cav.compile_and_analyze_file(compile_command.filename,
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compile_command.args + extra_args,
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extra_args + compile_command.args,
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compile_command.directory)
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@ -947,10 +953,15 @@ def main():
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type=int,
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default=0,
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help="Number of parallel jobs to use.")
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parser.add_argument(
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"--compile-commands-dir",
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type=str,
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default=None,
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help="Path to directory containing compile_commands.json.")
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parser.add_argument("--cxxflags",
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type=str,
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default=None,
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help="Flags passed to clang++.")
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help="Extra flags passed to clang++.")
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parser.add_argument(
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"--compilation-root",
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type=str,
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@ -975,34 +986,52 @@ def main():
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cmdline.compilation_root = cmdline.verilator_root
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verilator_root = os.path.abspath(cmdline.verilator_root)
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compilation_root = os.path.abspath(cmdline.compilation_root)
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default_compilation_root = os.path.abspath(cmdline.compilation_root)
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compdb: Optional[CompilationDatabase] = None
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if cmdline.compile_commands_dir:
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compdb = CompilationDatabase.fromDirectory(
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cmdline.compile_commands_dir)
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default_cxx_flags = [
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f"-I{verilator_root}/src",
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f"-I{verilator_root}/include",
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f"-I{verilator_root}/src/obj_opt",
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"-fcoroutines-ts",
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]
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if cmdline.cxxflags is not None:
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cxxflags = shlex.split(cmdline.cxxflags)
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common_cxxflags = shlex.split(cmdline.cxxflags)
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else:
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cxxflags = default_cxx_flags
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common_cxxflags = []
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precompile_commands_list = []
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if cmdline.precompile:
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hdr_cxxflags = ['-xc++-header'] + cxxflags
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hdr_cxxflags = ['-xc++-header'] + common_cxxflags
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for refid, file in enumerate(cmdline.precompile):
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filename = os.path.abspath(file)
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compile_command = CompileCommand(refid, filename, hdr_cxxflags,
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compilation_root)
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default_compilation_root)
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precompile_commands_list.append(compile_command)
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compile_commands_list = []
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for refid, file in enumerate(cmdline.file):
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filename = os.path.abspath(file)
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compile_command = CompileCommand(refid, filename, cxxflags,
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compilation_root)
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root = default_compilation_root
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cxxflags = []
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if compdb:
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entry = compdb.getCompileCommands(filename)
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entry_list = list(entry)
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# Compilation database can contain multiple entries for single file,
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# e.g. when it has been updated by appending new entries.
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# Use last entry for the file, if it exists, as it is the newest one.
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if len(entry_list) > 0:
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last_entry = entry_list[-1]
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root = last_entry.directory
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entry_args = list(last_entry.arguments)
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# First argument in compile_commands.json arguments list is
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# compiler executable name/path. CIndex (libclang) always
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# implicitly prepends executable name, so it shouldn't be passed
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# here.
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cxxflags = common_cxxflags + entry_args[1:]
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else:
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cxxflags = common_cxxflags[:]
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compile_command = CompileCommand(refid, filename, cxxflags, root)
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compile_commands_list.append(compile_command)
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summary_printer = TopDownSummaryPrinter()
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@ -18,14 +18,13 @@
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#### Start of system configuration section. ####
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srcdir = @srcdir@
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PYTHON3 = @PYTHON3@
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EXEEXT = @EXEEXT@
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PYTHON3 = @PYTHON3@
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# VPATH only does sources; fix install_test's not creating ../bin
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vpath %.h @srcdir@
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#### End of system configuration section. ####
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default: dbg opt
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debug: dbg
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optimize: opt
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@ -36,6 +35,26 @@ endif
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UNDER_GIT = $(wildcard ${srcdir}/../.git/logs/HEAD)
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ifeq (,$(wildcard obj_dbg/bear.o))
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ifneq (, $(shell which bear 2>/dev/null))
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BEAR := $(shell which bear)
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ifeq (, $(shell $(BEAR) --output obj_dbg/comptest.json -- true))
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$(shell which bear 2>/dev/null >obj_dbg/bear.o)
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else
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# unsupported version
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BEAR :=
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endif
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endif
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else
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BEAR := $(shell cat obj_dbg/bear.o)
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endif
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ifneq ($(BEAR),)
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BEAR_OBJ_OPT := $(BEAR) --append --output obj_dbg/compile_commands.json --
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else
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BEAR_OBJ_OPT :=
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endif
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#*********************************************************************
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obj_opt:
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@ -62,8 +81,8 @@ endif
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dbg: ../bin/verilator_bin_dbg$(EXEEXT) ../bin/verilator_coverage_bin_dbg$(EXEEXT)
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../bin/verilator_bin_dbg$(EXEEXT): obj_dbg ../bin prefiles
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$(MAKE) -C obj_dbg -j 1 TGT=../$@ VL_DEBUG=1 -f ../Makefile_obj serial
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$(MAKE) -C obj_dbg TGT=../$@ VL_DEBUG=1 -f ../Makefile_obj
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$(BEAR_OBJ_OPT) $(MAKE) -C obj_dbg -j 1 TGT=../$@ VL_DEBUG=1 -f ../Makefile_obj serial
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$(BEAR_OBJ_OPT) $(MAKE) -C obj_dbg TGT=../$@ VL_DEBUG=1 -f ../Makefile_obj
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../bin/verilator_coverage_bin_dbg$(EXEEXT): obj_dbg ../bin prefiles
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$(MAKE) -C obj_dbg TGT=../$@ VL_DEBUG=1 VL_VLCOV=1 -f ../Makefile_obj serial_vlcov
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