Class: Udb::ConfiguredArchitecture

Inherits:
Architecture show all
Extended by:
T::Sig
Defined in:
lib/udb/cfg_arch.rb,
lib/udb/condition.rb

Defined Under Namespace

Classes: MemoizedState, ValidationResult

Constant Summary collapse

@@yaml_data_cache =

This classvariable is part of a private API. You should avoid using this classvariable if possible, as it may be removed or be changed in the future.

metaprogramming function to create accessor methods for top-level database objects

This is defined in ConfiguredArchitecture, rather than Architecture because the object models all expect to work with a ConfiguredArchitecture

For example, created the following functions:

extensions        # array of all extensions
extension_hash    # hash of all extensions, indexed by name
extension(name)   # getter for extension 'name'
instructions      # array of all extensions
instruction_hash  # hash of all extensions, indexed by name
instruction(name) # getter for extension 'name'
...

Class-level cache of raw YAML file contents keyed by “#resolved_spec_path/#obj_type_dir”. Maps each directory to an array of [content, original_path, realpath] triples so that a second ConfiguredArchitecture sharing the same spec path skips disk I/O and file locking. Benign race: two threads both missing the cache produce identical entries.

Returns:

  • (Array<>) —

    List of all s defined in the standard

  • (Hash<String, >) —

    Hash of all s

  • The

  • (nil) —

    if there is no named name

Concurrent::Hash.new

Constants inherited from Architecture

Architecture::OBJS

Instance Attribute Summary collapse

Attributes inherited from Architecture

#path

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Architecture

#extension_versions, #objs, #portfolio, #portfolio_class, #portfolio_class_hash, #portfolio_classes, #portfolio_hash, #portfolios, #ref, #validate

Constructor Details

#initialize(name, config) ⇒ ConfiguredArchitecture

Returns a new instance of ConfiguredArchitecture.



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# File 'lib/udb/cfg_arch.rb', line 675

def initialize(name, config)
  Udb.logger.info "Constructing ConfiguredArchiture for #{name}"
  super(config.info.resolved_spec_path)

  @name = name.to_s.freeze
  @name_sym = @name.to_sym.freeze

  @memo = MemoizedState.new(
    multi_xlen_in_mode: {},
    extension_requirements_hash: {},
    extension_versions_hash: {}
  )

  @config = config
  @config_type = T.let(@config.type, ConfigType)
  @mxlen = config.mxlen
  @mxlen.freeze

  @idl_compiler = Idl::Compiler.new
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/udb/cfg_arch.rb', line 51

def config
  @config
end

#idl_compiler ⇒ Object (readonly)

Returns the value of attribute idl_compiler.



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# File 'lib/udb/cfg_arch.rb', line 41

def idl_compiler
  @idl_compiler
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/udb/cfg_arch.rb', line 48

def name
  @name
end

Class Method Details

.generate_obj_methods(fn_name, arch_dir, obj_class) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 733

def self.generate_obj_methods(fn_name, arch_dir, obj_class)

  plural_fn = ActiveSupport::Inflector.pluralize(fn_name)

  define_method(plural_fn) do
    return @objects[arch_dir] unless @objects[arch_dir].nil?

    @objects[arch_dir] = Concurrent::Array.new
    @object_hashes[arch_dir] = Concurrent::Hash.new

    yaml_cache_key = "#{@arch_dir}/#{arch_dir}"
    cached_files = @@yaml_data_cache[yaml_cache_key]
    if cached_files.nil?
      entries = []
      Dir.glob(@arch_dir / arch_dir / "**" / "*.yaml") do |obj_path|
        File.open(obj_path) do |f|
          f.flock(File::LOCK_EX)
          content = f.read
          f.flock(File::LOCK_UN)
          entries << [content, obj_path, Pathname.new(obj_path).realpath]
        end
      end
      cached_files = @@yaml_data_cache[yaml_cache_key] = entries
    end

    cached_files.each do |content, obj_path, realpath|
      obj_yaml = YAML.load(content, filename: obj_path, permitted_classes: [Date])
      @objects[arch_dir] << obj_class.new(obj_yaml, realpath, T.cast(self, ConfiguredArchitecture))
      @object_hashes[arch_dir][@objects[arch_dir].last.name] = @objects[arch_dir].last
    end
    @objects[arch_dir]
  end

  define_method("#{fn_name}_hash") do
    return @object_hashes[arch_dir] unless @object_hashes[arch_dir].nil?

    send(plural_fn) # create the hash

    @object_hashes[arch_dir]
  end

  define_method(fn_name) do |name|
    return @object_hashes[arch_dir][name] unless @object_hashes[arch_dir].nil?

    send(plural_fn) # create the hash

    @object_hashes[arch_dir][name]
  end
end

Instance Method Details

#_hash ⇒ Array<>, ...

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

metaprogramming function to create accessor methods for top-level database objects

This is defined in ConfiguredArchitecture, rather than Architecture because the object models all expect to work with a ConfiguredArchitecture

For example, created the following functions:

extensions        # array of all extensions
extension_hash    # hash of all extensions, indexed by name
extension(name)   # getter for extension 'name'
instructions      # array of all extensions
instruction_hash  # hash of all extensions, indexed by name
instruction(name) # getter for extension 'name'
...

Class-level cache of raw YAML file contents keyed by “#resolved_spec_path/#obj_type_dir”. Maps each directory to an array of [content, original_path, realpath] triples so that a second ConfiguredArchitecture sharing the same spec path skips disk I/O and file locking. Benign race: two threads both missing the cache produce identical entries.

Parameters:

  • name (String) —

    The name

Returns:

  • (Array<>) —

    List of all s defined in the standard

  • (Hash<String, >) —

    Hash of all s

  • The

  • (nil) —

    if there is no named name



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# File 'lib/udb/cfg_arch.rb', line 730

@@yaml_data_cache = Concurrent::Hash.new

#arch_condition ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1339

def arch_condition
  @arch_condition ||=
    begin
      extension_version_conditions =
        extension_versions.map do |ext_ver|
          unless ext_ver.requirements_condition.empty?
            ext_ver.to_condition.implies(ext_ver.requirements_condition)
          end
        end.compact
      c = Condition.conjunction(extension_version_conditions, self)
      params.each do |param|
        unless param.requirements_condition.empty?
          c = c & param.defined_by_condition.implies(param.requirements_condition)
        end
      end
      c
    end
end

#config_type ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 258

def config_type = @config_type

#constructing_symtab? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 231

def constructing_symtab? = (@constructing_symtab_depth || 0) > 0

#convert_monospace_to_links(adoc) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1621

def convert_monospace_to_links(adoc)
  h = Class.new do include Udb::Helpers::TemplateHelpers end.new
  adoc.gsub(/`([\w.]+)`/) do |match|
    name = Regexp.last_match(1)
    csr_name, field_name = T.must(name).split(".")
    csr = not_prohibited_csrs.find { |c| c.name == csr_name }
    if !field_name.nil? && !csr.nil? && csr.field?(field_name)
      h.link_to_udb_doc_csr_field(csr_name, field_name)
    elsif !csr.nil?
      h.link_to_udb_doc_csr(csr_name)
    elsif not_prohibited_instructions.any? { |inst| inst.name == name }
      h.link_to_udb_doc_inst(name)
    elsif not_prohibited_extensions.any? { |ext| ext.name == name }
      h.link_to_udb_doc_ext(name)
    else
      match
    end
  end
end

#csrs_that_must_be_implemented(show_progress: false) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1294

def csrs_that_must_be_implemented(show_progress: false)
  @csrs_that_must_be_implemented ||=
    if @config.fully_configured?
      implemented_csrs
    elsif @config.partially_configured?
      bar =
        if show_progress
          Udb.create_progressbar("determining CSRs that must be implemented [:bar]", total: csrs.size, output: $stdout)
        end
      csrs.select do |csr|
        bar.advance if show_progress
        (-csr.defined_by_condition).unsatisfiable_by_cfg_arch?(self)
      end
    else
      []
    end
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 194

def eql?(other)
  return false unless other.__send__(:is_a?, ConfiguredArchitecture)

  @name.eql?(other.__send__(:name))
end

#expand_implemented_extension_list(ext_vers) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 999

def expand_implemented_extension_list(ext_vers)

  # build up a condition requiring all ext_vers, have it expand, and then minimize it
  # what's left is the full list
  condition =
    Condition.conjunction(ext_vers.map(&:to_condition), self)

  res = condition.implied_extension_requirements
  (ext_vers +
  res.map do |cond_ext_req|
    if cond_ext_req.cond.empty?
      cond_ext_req.ext_req.satisfying_versions.fetch(0)
    else
      nil
    end
  end.compact).uniq
end

#explicitly_implemented_extension_versions ⇒ Object

Deprecated.

in favor of implemented_extension_versions



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# File 'lib/udb/cfg_arch.rb', line 943

def explicitly_implemented_extension_versions = implemented_extension_versions

#ext?(ext_name) ⇒ Boolean #ext?(ext_name, ext_version_requirements) ⇒ Boolean

sig { params(ext_name: T.any(String, Symbol), ext_version_requirements: T::Array).returns(T::Boolean) }

Overloads:

  • #ext?(ext_name) ⇒ Boolean

    Returns True if the extension ‘name` is implemented.

    Parameters:

    • ext_name (#to_s) —

      Extension name (case sensitive)

    Returns:

    • (Boolean) —

      True if the extension ‘name` is implemented

  • #ext?(ext_name, ext_version_requirements) ⇒ Boolean

    Returns True if the extension ‘name` meeting `ext_version_requirements` is implemented.

    Examples:

    Checking extension presence with a version requirement

    ConfigurationArchitecture.ext?(:S, ">= 1.12")

    Checking extension presence with multiple version requirements

    ConfigurationArchitecture.ext?(:S, ">= 1.12", "< 1.15")

    Checking extension precsence with a precise version requirement

    ConfigurationArchitecture.ext?(:S, 1.12)

    Parameters:

    • ext_name (#to_s) —

      Extension name (case sensitive)

    • ext_version_requirements (Number, String, Array) —

      Extension version requirements

    Returns:

    • (Boolean) —

      True if the extension ‘name` meeting `ext_version_requirements` is implemented



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# File 'lib/udb/cfg_arch.rb', line 1176

def ext?(ext_name, ext_version_requirements = [])
  @ext_cache ||= {}
  cached_result = @ext_cache[[ext_name, ext_version_requirements]]
  return cached_result unless cached_result.nil?

  result =
    if @config.fully_configured?
      implemented_extension_versions.any? do |e|
        if ext_version_requirements.empty?
          e.name == ext_name.to_s
        else
          requirement = extension_requirement(ext_name.to_s, ext_version_requirements)
          requirement.satisfied_by?(e)
        end
      end
    elsif @config.partially_configured?
      mandatory_extension_reqs.any? do |e|
        if ext_version_requirements.empty?
          e.name == ext_name.to_s
        else
          requirement = extension_requirement(ext_name.to_s, ext_version_requirements)
          e.satisfying_versions.all? do |ext_ver|
            requirement.satisfied_by?(ext_ver)
          end
        end
      end
    else
      raise "unexpected type" unless unconfigured?

      false
    end
  @ext_cache[[ext_name, ext_version_requirements]] = result
end

#extension_requirement(name, requirements) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 949

def extension_requirement(name, requirements)
  requirement_specs =
    if requirements.is_a?(Array)
      if requirements.fetch(0).is_a?(RequirementSpec)
        requirements
      else
        requirements.map { |r| RequirementSpec.new(r) }
      end
    else
      if requirements.is_a?(RequirementSpec)
        requirements
      else
        RequirementSpec.new(requirements)
      end
    end
  key =
    if requirement_specs.is_a?(Array)
      [name, *requirement_specs].hash
    else
      [name, requirement_specs].hash
    end

  cached_ext_req = @memo.extension_requirements_hash[key]
  if cached_ext_req.nil?
    ext_req = ExtensionRequirement.send(:new, name, requirement_specs, arch: self)
    @memo.extension_requirements_hash[key] = ext_req
  else
    cached_ext_req
  end
end

#extension_version(name, version) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 981

def extension_version(name, version)
  version_spec = version.is_a?(VersionSpec) ? version : VersionSpec.new(version)
  key = [name, version_spec].hash

  cached_ext_ver = @memo.extension_versions_hash[key]
  if cached_ext_ver.nil?
    ext_req = ExtensionVersion.send(:new, name, version_spec, self, fail_if_version_does_not_exist: true)
    @memo.extension_versions_hash[key] = ext_req
  else
    cached_ext_ver
  end
end

#fetch ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1242

def fetch
  @fetch ||= global_ast.fetch
end

#fully_configured? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 54

def fully_configured? = @config.fully_configured?

#function(name) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1236

def function(name)
  function_hash[name]
end

#function_hash ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1231

def function_hash
  @function_hash ||= functions.map { |f| [f.name, f] }.to_h
end

#functions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1226

def functions
  @functions ||= global_ast.functions
end

#global_ast ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 234

def global_ast
  @global_ast ||=
    begin
      # now add globals to the phase1 symtab
      overlay_path = @config.info.overlay_path
      custom_globals_path = overlay_path.nil? ? Pathname.new("/does/not/exist") : overlay_path / "isa" / "globals.isa"
      idl_path = File.exist?(custom_globals_path) ? custom_globals_path : @config.info.spec_path / "isa" / "globals.isa"
      Udb.logger.info "Compiling global IDL"
      pb =
        Udb.create_progressbar(
          "Compiling IDL for #{name} [:bar]",
          clear: true
        )
      @idl_compiler.pb = pb
      ast = @idl_compiler.compile_file(
        idl_path
      )
      pb.finish
      @idl_compiler.unset_pb
      ast
    end
end

#globals ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1248

def globals
  return @globals unless @globals.nil?

  @globals = global_ast.globals
end

#hash ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 191

def hash = @name_sym.hash

#implemented_csrs ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1256

def implemented_csrs
  @implemented_csrs ||=
    begin
      unless fully_configured?
        raise ArgumentError, "implemented_csrs is only defined for fully configured systems"
      end

      csrs.select do |csr|
        csr.defined_by_condition.satisfied_by_cfg_arch?(self) == SatisfiedResult::Yes
      end
    end
end

#implemented_exception_codes ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1212

def implemented_exception_codes
  @implemented_exception_codes ||=
    exception_codes.select { |code| code.defined_by_condition.satisfiable_by_cfg_arch?(self) }
end

#implemented_extension_version(ext_name) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1019

def implemented_extension_version(ext_name)
  @memo.implemented_extension_version_hash ||=
    implemented_extension_versions.to_h { |ext_ver| [ext_ver.name, ext_ver] }

  @memo.implemented_extension_version_hash[ext_name]
end

#implemented_extension_versions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 929

def implemented_extension_versions
  @memo.implemented_extension_versions ||=
    begin
      unless fully_configured?
        raise ArgumentError, "implemented_extension_versions only valid for fully configured systems"
      end

      T.cast(@config, FullConfig).implemented_extensions.map do |e|
        extension_version(e.fetch("name"), e.fetch("version"))
      end
    end
end

#implemented_functions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1540

def implemented_functions
  reachable_functions(show_progress: false)
end

#implemented_instructions(show_progress: false) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1442

def implemented_instructions(show_progress: false)
  unless fully_configured?
    raise ArgumentError, "implemented_instructions is only defined for fully configured systems"
  end

  @implemented_instructions ||=
    begin
      bar =
        if show_progress
          Udb.create_progressbar("determining implemented instructions [:bar] :current/:total", total: instructions.size)
        end
      instructions.select do |inst|
        bar.advance if show_progress
        inst.defined_by_condition.satisfiable_by_cfg_arch?(self)
        # inst.defined_by_condition.satisfied_by_cfg_arch?(self) == SatisfiedResult::Yes
      end
    end
end

#implemented_interrupt_codes ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1219

def implemented_interrupt_codes
  @implemented_interupt_codes ||=
    implemented_exception_codes.select { |code| code.defined_by_condition.satisfiable_by_cfg_arch?(self) }
end

#implemented_non_isa_specs ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1762

def implemented_non_isa_specs
  return @implemented_non_isa_specs if defined?(@implemented_non_isa_specs)

  @implemented_non_isa_specs = possible_non_isa_specs.select do |spec|
    spec.exists_in_cfg?(self)
  end

  @implemented_non_isa_specs
end

#in_scope_condition ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1406

def in_scope_condition
  @in_scope_condition ||=
    begin
      if fully_configured?
        (
          Condition.conjunction(implemented_extension_versions.map(&:to_condition), self) \
          & \
          Condition.conjunction(
            params_with_value.map do |pv|
              Condition.new({ "param" => { "name" => pv.name, "equal" => pv.value } }, self)
            end,
            self
          )
        )
      elsif partially_configured?
        c = (
          Condition.conjunction(mandatory_extension_reqs.map(&:to_condition) + non_mandatory_extension_reqs.map(&:to_condition), self) \
          & \
          Condition.conjunction(
            params_with_value.map do |pv|
              Condition.new({ "param" => { "name" => pv.name, "equal" => pv.value } }, self)
            end,
            self
          )
        )
        reqs = T.cast(@config, PartialConfig).requirements
        unless reqs.nil?
          c = (c & Condition.new(reqs, self))
        end
        c
      end
    end
end

#in_scope_csrs(show_progress: false) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1319

def in_scope_csrs(show_progress: false)
  @mentioned_csrs ||=
    if @config.fully_configured?
      implemented_csrs
    elsif @config.partially_configured?
      bar =
        if show_progress
          Udb.create_progressbar("determining in scope CSRs [:bar]", total: csrs.size, output: $stdout)
        end
      csrs.select do |csr|
        bar.advance if show_progress
        (-csr.defined_by_condition & in_scope_condition).unsatisfiable?
      end
    else
      []
    end
end

#inspect ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 696

def inspect
  "CfgArch##{name}"
end

#instructions_that_must_be_implemented(show_progress: false) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1514

def instructions_that_must_be_implemented(show_progress: false)
  @instructions_that_must_be_implemented ||=
    if @config.fully_configured?
      implemented_instructions
    elsif @config.partially_configured?
      bar =
        if show_progress
          Udb.create_progressbar("determining instructions that must be implemented [:bar]", total: instructions.size, clear: true)
        end
      instructions.select do |inst|
        bar.advance if show_progress
        (-inst.defined_by_condition).unsatisfiable_by_cfg_arch?(self)
      end
    else
      []
    end
end

#largest_encoding ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1534

def largest_encoding
  @largest_encoding ||= possible_instructions.map(&:max_encoding_width).max
end

#mandatory_extension_reqs ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1028

def mandatory_extension_reqs
  @mandatory_extension_reqs ||=
    begin
      raise "Only partial configs have mandatory extension requirements" unless @config.is_a?(PartialConfig)

      @config.mandatory_extensions.map do |e|
        ename = T.cast(e["name"], String)

        if e["version"].nil?
          extension_requirement(ename, ">= 0")
        else
          extension_requirement(ename, e.fetch("version"))
        end
      end
    end
end

#multi_xlen? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 81

def multi_xlen?
  @memo.multi_xlen ||=
    begin
      return true if @mxlen.nil?

      ["S", "U", "VS", "VU"].any? { |mode| multi_xlen_in_mode?(mode) }
    end
end

#multi_xlen_in_mode?(mode) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 103

def multi_xlen_in_mode?(mode)
  @memo.multi_xlen_in_mode[mode] ||=
    begin
      return false if mxlen == 32

      case mode
      when "M", "D"
        mxlen.nil?
      when "S"
        return true if unconfigured?

        if fully_configured?
          ext?(:S) && (param_values["SXLEN"].size > 1)
        elsif partially_configured?
          return false if prohibited_ext?(:S)

          return true unless ext?(:S) # if S is not known to be implemented, we can't say anything about it

          return true unless param_values.key?("SXLEN")

          param_values["SXLEN"].size > 1
        else
          raise "Unexpected configuration state"
        end
      when "U"
        return false if prohibited_ext?(:U)

        return true if unconfigured?

        if fully_configured?
          ext?(:U) && (param_values["UXLEN"].size > 1)
        elsif partially_configured?
          return true unless ext?(:U) # if U is not known to be implemented, we can't say anything about it

          return true unless param_values.key?("UXLEN")

          param_values["UXLEN"].size > 1
        else
          raise "Unexpected configuration state"
        end
      when "VS"
        return false if prohibited_ext?(:H)

        return true if unconfigured?

        if fully_configured?
          ext?(:H) && (param_values["VSXLEN"].size > 1)
        elsif partially_configured?
          return true unless ext?(:H) # if H is not known to be implemented, we can't say anything about it

          return true unless param_values.key?("VSXLEN")

          param_values["VSXLEN"].size > 1
        else
          raise "Unexpected configuration state"
        end
      when "VU"
        return false if prohibited_ext?(:H)

        return true if unconfigured?

        if fully_configured?
          ext?(:H) && (param_values["VUXLEN"].size > 1)
        elsif partially_configured?
          return true unless ext?(:H) # if H is not known to be implemented, we can't say anything about it

          return true unless param_values.key?("VUXLEN")

          param_values["VUXLEN"].size > 1
        else
          raise "Unexpected configuration state"
        end
      else
        raise ArgumentError, "Bad mode: #{mode}"
      end
    end
end

#mxlen ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 64

def mxlen = @config.mxlen

#non_mandatory_extension_reqs ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1047

def non_mandatory_extension_reqs
  @non_mandatory_extension_reqs ||=
    begin
      raise "Only partial configs have non-mandatory extension requirements" unless @config.is_a?(PartialConfig)

      @config.non_mandatory_extensions.map do |e|
        ename = T.cast(e["name"], String)

        if e["version"].nil?
          extension_requirement(ename, ">= 0")
        else
          extension_requirement(ename, e.fetch("version"))
        end
      end
    end
end

#optional_extension_versions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1067

def optional_extension_versions
  @optional_extension_versions ||=
    begin
      if fully_configured?
        []
      elsif partially_configured?
        # optional is all extensions - mandatory - prohibited
        extension_versions.reject do |ext_ver|
          mandatory_extension_reqs.any? { |ext_req| ext_req.satisfied_by?(ext_ver) } ||
            prohibited_extension_versions.any? { |prohibited_ext_ver| prohibited_ext_ver == ext_ver }
        end
      else
        # unconfig; all extension versions are optional
        extension_versions
      end
    end
end

#out_of_scope_params ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 913

def out_of_scope_params
  @memo.out_of_scope_params ||=
    begin
      out_of_scope_params = []
      params.each do |param|
        next if params_with_value.any? { |p| p.name == param.name }
        next if params_without_value.any? { |p| p.name == param.name }

        out_of_scope_params << param
      end
      out_of_scope_params
    end
end

#param_term_satisfied_memo ⇒ Hash<ParameterTerm, SatisfiedResult>

Memoized Z3 satisfiability result for a ParameterTerm against this cfg_arch. Keyed by ParameterTerm (uses hash/eql? based on yaml_no_reason), so identical terms across different Condition objects share the same Z3 result.

Returns:



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# File 'lib/udb/cfg_arch.rb', line 1138

def param_term_satisfied_memo
  @param_term_satisfied_memo ||= {}
end

#param_values ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 68

def param_values = @config.param_values

#params_with_value ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 888

def params_with_value
  @memo.params_with_value ||=
    @config.param_values.map do |param_name, param_value|
      p = param(param_name)
      if p.nil?
        Udb.logger.warn "#{param_name} is not a parameter"
        nil
      else
        ParameterWithValue.new(p, param_value)
      end
    end.compact
end

#params_without_value ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 903

def params_without_value
  @memo.params_without_value ||=
    params.select do |p|
      !@config.param_values.key?(p.name) \
        && p.defined_by_condition.could_be_satisfied_by_cfg_arch?(self)
    end
end

#partial_config_strictly_specified? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 386

def partial_config_strictly_specified?
  raise "not a partial config" unless partially_configured?

  v = partial_config_valid?

  reasons = []
  mandatory_extension_reqs.each do |ext_req|
    if ext_req.requirements_condition.satisfied_by_cfg_arch?(self) != SatisfiedResult::Yes
      failing = ext_req.requirements_condition.failing_conjuncts(self, expand: false)
      reasons << "Requirement of #{ext_req} are not met:\n" + if failing.empty?
        "  Condition not yet determined: #{ext_req.requirements_condition.to_s_with_value(self, expand: false)}"
      else
        failing.map { |f| "  - #{f}" }.join("\n")
      end
    end
  end

  ValidationResult.new(valid: v.valid & reasons.empty?, reasons: v.reasons + reasons)
end

#partially_configured? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 57

def partially_configured? = @config.partially_configured?

#possible_csrs(show_progress: false) ⇒ Object Also known as: not_prohibited_csrs 



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# File 'lib/udb/cfg_arch.rb', line 1274

def possible_csrs(show_progress: false)
  @not_prohibited_csrs ||=
    if @config.fully_configured?
      implemented_csrs
    elsif @config.partially_configured?
      bar =
        if show_progress
          TTY::ProgressBar.new("determining possible CSRs [:bar]", total: csrs.size, output: $stdout)
        end
      csrs.select do |csr|
        bar.advance if show_progress
        csr.defined_by_condition.satisfiable_by_cfg_arch?(self)
      end
    else
      csrs
    end
end

#possible_extension_versions ⇒ Object

the complete set of extension versions that could be implemented in this config



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# File 'lib/udb/cfg_arch.rb', line 1112

def possible_extension_versions
  @possible_extension_versions ||=
    begin
      if @config.partially_configured?
        extension_versions.select { |ext_ver| ext_ver.to_condition.satisfiable_by_cfg_arch?(self) }
      elsif @config.fully_configured?
        # full config: only the implemented versions are possible
        implemented_extension_versions
      else
        # unconfig; everything is possible
        extensions.map(&:versions).flatten
      end
    end
end

#possible_extension_versions_by_name ⇒ Hash<String, Array<ExtensionVersion>>

Returns possible_extension_versions grouped by name.

Returns:

  • (Hash<String, Array<ExtensionVersion>>) —

    possible_extension_versions grouped by name



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# File 'lib/udb/cfg_arch.rb', line 1128

def possible_extension_versions_by_name
  @possible_extension_versions_by_name ||=
    possible_extension_versions.group_by(&:name)
end

#possible_extensions ⇒ Object Also known as: not_prohibited_extensions 



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# File 'lib/udb/cfg_arch.rb', line 1087

def possible_extensions
  return @not_prohibited_extensions if defined?(@not_prohibited_extensions)

  @not_prohibited_extensions ||=
    if @config.fully_configured?
      implemented_extension_versions.map { |ext_ver| ext_ver.ext }.uniq
    elsif @config.partially_configured?
      pb = Udb.create_progressbar("determining possible exts [:bar] :current/:total", total: extensions.size)
      extensions.select { |e| pb.advance; (e.to_condition).satisfiable_by_cfg_arch?(self) }
    else
      extensions
    end
end

#possible_instructions(show_progress: false) ⇒ Object Also known as: not_prohibited_instructions 



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# File 'lib/udb/cfg_arch.rb', line 1485

def possible_instructions(show_progress: false)
  return @not_prohibited_instructions if defined?(@not_prohibited_instructions)

  @not_prohibited_instructions ||=
    if @config.fully_configured?
      implemented_instructions(show_progress:)
    elsif @config.partially_configured?
      bar =
        if show_progress
          TTY::ProgressBar.new("determining possible instructions [:bar] :current/:total", total: instructions.size, clear: true)
        end
      instructions.select do |inst|
        bar.advance if show_progress

        inst.defined_by_condition.satisfiable_by_cfg_arch?(self)

        # possible_xlens.any? { |xlen| inst.defined_in_base?(xlen) } && \
        #   inst.defined_by_condition.satisfied_by_cfg_arch?(self) != SatisfiedResult::No
      end
    else
      instructions
    end

  @not_prohibited_instructions
end

#possible_non_isa_specs ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1731

def possible_non_isa_specs
  return @possible_non_isa_specs if defined?(@possible_non_isa_specs)



  @possible_non_isa_specs = []

  # Discover local non-ISA specifications
  non_isa_path = Pathname.new(__dir__).parent.parent.parent.parent.parent / "spec/custom/non_isa"
  if non_isa_path.exist?
    non_isa_path.glob("*.yaml").each do |spec_file|
      next if spec_file.basename.to_s.start_with?("prm") # Skip PRM files

      begin
        spec_name = spec_file.basename(".yaml").to_s
        spec_data = YAML.load_file(spec_file)
        next unless spec_data["kind"] == "non-isa specification"

        spec_obj = Udb::NonIsaSpecification.new(spec_name, spec_data)
        @possible_non_isa_specs << spec_obj
      rescue => e
        Udb.logger.warn "Failed to load non-ISA spec #{spec_file}: #{e.message}"
      end
    end
  end

  @possible_non_isa_specs.sort_by(&:name)
end

#possible_xlen?(xlen) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 186

def possible_xlen?(xlen) = possible_xlens.include?(xlen)

#possible_xlens ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 183

def possible_xlens = multi_xlen? ? [32, 64] : [mxlen]

#prohibited_ext?(ext) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 1152

def prohibited_ext?(ext)
  if ext.is_a?(ExtensionVersion)
    prohibited_extension_versions.include?(ext)
  elsif ext.is_a?(String) || ext.is_a?(Symbol)
    prohibited_extension_versions.any? { |ext_ver| ext_ver.name == ext.to_s }
  else
    raise ArgumentError, "Argument to prohibited_ext? should be an ExtensionVersion or a String"
  end
end

#prohibited_extension_versions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1106

def prohibited_extension_versions
  @prohibited_extension_versions ||=
    extension_versions - possible_extension_versions
end

#prohibited_instructions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1466

def prohibited_instructions
  @prohibited_instructions ||=
    if fully_configured?
      (instructions - implemented_instructions).sort
    elsif partially_configured?
      instructions.select do |inst|
        inst.defined_by_condition.unsatisfiable_by_cfg_arch?(self)
        # inst.defined_by_condition.satisfied_by_cfg_arch?(self) == SatisfiedResult::No
      end.sort
    else
      []
    end
end

#reachable_functions(show_progress: false) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1546

def reachable_functions(show_progress: false)
  return @reachable_functions unless @reachable_functions.nil?

  @reachable_functions = []

  insts = possible_instructions(show_progress:)
  csrs = possible_csrs(show_progress:)

  bar =
    if show_progress
      TTY::ProgressBar.new("determining reachable IDL functions [:bar]", total: insts.size + csrs.size + 1 + global_ast.functions.size, output: $stdout)
    end

  # Shared cache across all instructions/CSRs so that common utility functions
  # are only traversed once rather than once per instruction.
  shared_cache = {
    32 => T.let({}, Idl::AstNode::ReachableFunctionCacheType),
    64 => T.let({}, Idl::AstNode::ReachableFunctionCacheType)
  }

  possible_instructions.each do |inst|
    bar.advance if show_progress

    fns =
      if inst.base.nil?
        if multi_xlen?
          (inst.reachable_functions(32, shared_cache.fetch(32)) +
          inst.reachable_functions(64, shared_cache.fetch(32)))
        else
          inst.reachable_functions(possible_xlens.fetch(0), shared_cache.fetch(possible_xlens.fetch(0)))
        end
      else
        inst.reachable_functions(T.must(inst.base), shared_cache.fetch(T.must(inst.base)))
      end

    @reachable_functions.concat(fns)
  end

  @reachable_functions +=
    possible_csrs.flat_map do |csr|
      bar.advance if show_progress

      csr.reachable_functions(nil, shared_cache)
    end.uniq

  # now add everything from fetch
  st = @symtab.global_clone
  st.push(global_ast.fetch.body)
  possible_xlens.each do |xlen|
    @reachable_functions += global_ast.fetch.body.reachable_functions(st, shared_cache.fetch(xlen))
  end
  bar.advance if show_progress
  st.release

  # now add everything from external functions
  st = @symtab.global_clone
  global_ast.functions.select { |fn| fn.external? }.each do |fn|
    st.push(fn)
    @reachable_functions << fn
    bar.advance if show_progress
    st.pop
  end
  st.release

  @reachable_functions.uniq!
  @reachable_functions
end

#render_erb(erb_template, what = "") ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1713

def render_erb(erb_template, what = "")
  t = Tempfile.new("template")
  t.write erb_template
  t.flush
  begin
    Tilt["erb"].new(t.path, trim: "-").render(erb_env)
  rescue
    Udb.logger.error "While rendering ERB template: #{what}"
    raise
  ensure
    t.close
    t.unlink
  end
end

#s ⇒ Array<>, ...

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

metaprogramming function to create accessor methods for top-level database objects

This is defined in ConfiguredArchitecture, rather than Architecture because the object models all expect to work with a ConfiguredArchitecture

For example, created the following functions:

extensions        # array of all extensions
extension_hash    # hash of all extensions, indexed by name
extension(name)   # getter for extension 'name'
instructions      # array of all extensions
instruction_hash  # hash of all extensions, indexed by name
instruction(name) # getter for extension 'name'
...

Class-level cache of raw YAML file contents keyed by “#resolved_spec_path/#obj_type_dir”. Maps each directory to an array of [content, original_path, realpath] triples so that a second ConfiguredArchitecture sharing the same spec path skips disk I/O and file locking. Benign race: two threads both missing the cache produce identical entries.

Parameters:

  • name (String) —

    The name

Returns:

  • (Array<>) —

    List of all s defined in the standard

  • (Hash<String, >) —

    Hash of all s

  • The

  • (nil) —

    if there is no named name



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# File 'lib/udb/cfg_arch.rb', line 730

@@yaml_data_cache = Concurrent::Hash.new

#symtab ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 202

def symtab
  @symtab ||=
    begin
      @symtab = create_symtab

      # Guard against re-entrant solver calls from within add_global_symbols.
      # Global initializers (e.g. FLEN) may call implemented?(), which triggers
      # prohibited_ext?() and the Z3 solver chain. If those calls see @symtab is
      # already set (partial), they'd use an incomplete symtab and fail.
      # A depth counter (rather than a boolean) is used so that if this block
      # ever nests (e.g. create_symtab is called recursively in the future),
      # the inner ensure does not prematurely clear the guard for the outer block.
      @constructing_symtab_depth = (@constructing_symtab_depth || 0) + 1
      begin
        global_ast.add_global_symbols(@symtab)
      ensure
        @constructing_symtab_depth -= 1
      end

      @symtab.deep_freeze
      raise if @symtab.name.nil?
      global_ast.freeze_tree(@symtab)
      @symtab
    end
end

#to_condition ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1360

def to_condition
  @to_condition ||=
    begin
      if fully_configured?
        (
          arch_condition \
          & \
          Condition.conjunction(implemented_extension_versions.map(&:to_condition), self) \
          & \
          Condition.conjunction(
            params_with_value.map do |pv|
              Condition.new({ "param" => { "name" => pv.name, "equal" => pv.value } }, self)
            end,
            self
          )
        )
      elsif partially_configured?
        c = arch_condition
        c = c & Condition.conjunction(mandatory_extension_reqs.map(&:to_condition), self)
        unless params_with_value.empty?
          c = c & Condition.conjunction(
            params_with_value.map do |pv|
              Condition.new({ "param" => { "name" => pv.name, "equal" => pv.value } }, self)
            end,
            self
          )
        end
        unless T.cast(@config, PartialConfig).prohibited_extensions.empty?
          prohib = T.cast(@config, PartialConfig).prohibited_extensions.map do |e|
            extension_requirement(T.cast(e.fetch("name"), String), e.fetch("version"))
          end
          c = c & -Condition.disjunction(prohib.map(&:to_condition), self)
        end
        reqs = T.cast(@config, PartialConfig).requirements
        unless reqs.nil?
          c = (c & Condition.new(reqs, self))
        end
        c
      else
        arch_condition
      end
    end
end

#transitive_implemented_csrs ⇒ Object

Deprecated.

in favor of implemented_csrs



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# File 'lib/udb/cfg_arch.rb', line 1270

def transitive_implemented_csrs = implemented_csrs

#transitive_implemented_extension_versions ⇒ Object

Deprecated.

in favor of implemented_extension_versions



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# File 'lib/udb/cfg_arch.rb', line 946

def transitive_implemented_extension_versions = implemented_extension_versions

#transitive_implemented_instructions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1462

def transitive_implemented_instructions = implemented_instructions

#transitive_implemented_non_isa_specs ⇒ Object

Deprecated.

in favor of #implemented_non_isa_specs



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# File 'lib/udb/cfg_arch.rb', line 1773

def transitive_implemented_non_isa_specs = implemented_non_isa_specs

#transitive_prohibited_instructions ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 1481

def transitive_prohibited_instructions = prohibited_instructions

#type_check(show_progress: true, io: $stderr) ⇒ Object 



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# File 'lib/udb/cfg_arch.rb', line 794

def type_check(show_progress: true, io: $stderr)
  io.puts "Type checking IDL code for #{@config.name}..." if show_progress
  insts = @config.unconfigured? ? instructions : possible_instructions(show_progress:)
  xlens = @config.unconfigured? ? [32, 64] : possible_xlens

  progressbar =
    if show_progress
      TTY::ProgressBar.new("type checking possible instructions [:bar] :current/:total", total: insts.size, output: io)
    end

  insts.each do |inst|
    progressbar.advance if show_progress
    if @mxlen == 32
      if inst.rv32?
        inst.pruned_operation_ast(32)
      end
    else
      if inst.rv64?
        inst.pruned_operation_ast(64)
      end
      if xlens.include?(32) && inst.rv32?
        inst.pruned_operation_ast(32)
      end
    end
  end

  csr_list = @config.unconfigured? ? csrs : possible_csrs
  progressbar =
    if show_progress
      TTY::ProgressBar.new("type checking CSRs [:bar] :current/:total", total: csr_list.size, output: io)
    end

  csr_list.each do |csr|
    progressbar.advance if show_progress
    # Cache CSR base checks to avoid repeated method calls
    csr_in_base32 = csr.defined_in_base32?
    csr_in_base64 = csr.defined_in_base64?

    if csr.has_custom_sw_read?
      if (xlens.include?(32) && csr_in_base32)
        csr.type_checked_pruned_sw_read_ast(32)
      end
      if (xlens.include?(64) && csr_in_base64)
        csr.type_checked_pruned_sw_read_ast(64)
      end
    end
    csr.possible_fields.each do |field|
      if field.reset_value_ast
        if xlens.include?(32) && csr_in_base32 && field.defined_in_base32?
          field.pruned_reset_value_ast
        end
        if xlens.include?(64) && csr_in_base64 && field.defined_in_base64?
          field.pruned_reset_value_ast
        end
      end
      if field.has_custom_sw_write?
        if xlens.include?(32) && csr_in_base32 && field.defined_in_base32?
          field.pruned_sw_write_ast(32)
        end
        if xlens.include?(64) && csr_in_base64 && field.defined_in_base64?
          field.pruned_sw_write_ast(64)
        end
      end
      if field.type_ast
        if xlens.include?(32) && csr_in_base32 && field.defined_in_base32?
          field.pruned_type_ast(32)
        end
        if xlens.include?(64) && csr_in_base64 && field.defined_in_base64?
          field.pruned_type_ast(64)
        end
      end
    end
  end

  func_list = @config.unconfigured? ? functions : reachable_functions(show_progress:)
  progressbar =
    if show_progress
      TTY::ProgressBar.new("type checking functions [:bar] :current/:total", total: func_list.size, output: io)
    end
  func_list.each do |func|
    progressbar.advance if show_progress
    s = symtab.global_clone
    s.push(func)
    pruned = func.prune(s)
    s.pop
    pruned.type_check(s, strict: true)
    s.release
  end

  puts "done" if show_progress
end

#unconfigured? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 60

def unconfigured? = @config.unconfigured?

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/cfg_arch.rb', line 268

def valid?
  if fully_configured?
    full_config_valid?
  elsif partially_configured?
    partial_config_valid?
  else
    ValidationResult.new(valid: true, reasons: [])
  end
end