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https://github.com/Mercury-Language/mercury.git
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7597790760
The main aim of this change is to make the overall, high-level structure of the compiler clearer, and to encourage better encapsulation of the major components. compiler/libs.m: compiler/backend_libs.m: compiler/parse_tree.m: compiler/hlds.m: compiler/check_hlds.m: compiler/transform_hlds.m: compiler/bytecode_backend.m: compiler/aditi_backend.m: compiler/ml_backend.m: compiler/ll_backend.m: compiler/top_level.m: New files. One module for each of the major components of the Mercury compiler. These modules contain (as separate sub-modules) all the other modules in the Mercury compiler, except gcc.m and mlds_to_gcc.m. Mmakefile: compiler/Mmakefile: Handle the fact that the top-level module is now `top_level', not `mercury_compile' (since `mercury_compile' is a sub-module of `top_level'). compiler/Mmakefile: Update settings of *FLAGS-<modulename> to use the appropriate nested module names. compiler/recompilation_check.m: compiler/recompilation_version.m: compiler/recompilation_usage.m: compiler/recompilation.check.m: compiler/recompilation.version.m: compiler/recompilation.version.m: Convert the `recompilation_*' modules into sub-modules of the `recompilation' module. compiler/*.m: compiler/*.pp: Module-qualify the module names in `:- module', `:- import_module', and `:- use_module' declarations. compiler/base_type_info.m: compiler/base_type_layout.m: Deleted these unused empty modules. compiler/prog_data.m: compiler/globals.m: Move the `foreign_language' type from prog_data to globals. compiler/mlds.m: compiler/ml_util.m: compiler/mlds_to_il.m: Import `globals', for `foreign_language'. Mmake.common.in: trace/Mmakefile: runtime/Mmakefile: Rename the %.check.c targets as %.check_hdr.c, to avoid conflicts with compiler/recompilation.check.c.
197 lines
6.2 KiB
Mathematica
197 lines
6.2 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% Copyright (C) 2001-2002 The University of Melbourne.
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% This file may only be copied under the terms of the GNU General
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% Public License - see the file COPYING in the Mercury distribution.
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%-----------------------------------------------------------------------------%
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%
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% Definitions of Mercury types for representing layout structures within
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% the compiler. Layout structures are generated by the compiler, and are
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% used by the parts of the runtime system that need to look at the stacks
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% (and sometimes the registers) and make sense of their contents. The parts
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% of the runtime system that need to do this include exception handling,
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% the debugger, the deep profiler and (eventually) the accurate garbage
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% collector.
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%
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% When output by layout_out.m, values of most these types will correspond
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% to the C types defined in runtime/mercury_stack_layout.h or
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% runtime/mercury_deep_profiling.h; the documentation of those types
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% can be found there. The names of the C types are listed next to the
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% function symbol whose arguments represent their contents.
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%
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% The code to generate values of these types is in stack_layout.m and
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% deep_profiling.m.
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%
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% This module should be, but as yet isn't, independent of whether we are
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% compiling to LLDS or MLDS.
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%
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% Author: zs.
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%-----------------------------------------------------------------------------%
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:- module ll_backend__layout.
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:- interface.
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:- import_module parse_tree__prog_data, libs__trace_params, ll_backend__llds.
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:- import_module backend_libs__rtti, hlds__hlds_goal.
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:- import_module bool, std_util, list, assoc_list.
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:- type layout_data
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---> label_layout_data( % defines MR_Label_Layout
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label :: label,
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proc_layout_name :: layout_name,
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maybe_port :: maybe(trace_port),
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maybe_goal_path :: maybe(int), % offset
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maybe_var_info :: maybe(label_var_info)
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)
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; proc_layout_data( % defines MR_Proc_Layout
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proc_label,
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proc_layout_stack_traversal,
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maybe_proc_id_and_exec_trace
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)
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; module_layout_data( % defines MR_Module_Layout
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module_name :: module_name,
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string_table_size :: int,
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string_table :: string,
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proc_layout_names :: list(layout_name),
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file_layouts :: list(file_layout_data),
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trace_level :: trace_level
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)
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; closure_proc_id_data( % defines MR_Closure_Id
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caller_proc_label :: proc_label,
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caller_closure_seq_no :: int,
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closure_proc_label :: proc_label,
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closure_module_name :: module_name,
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closure_file_name :: string,
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closure_line_number :: int,
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closure_goal_path :: string
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)
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; proc_static_data( % defines MR_ProcStatic
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proc_static_id :: rtti_proc_label,
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proc_static_file_name :: string,
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proc_static_line_number :: int,
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proc_is_in_interface :: bool,
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call_site_statics :: list(call_site_static_data)
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)
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; table_io_decl_data(
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table_io_decl_proc_ptr :: rtti_proc_label,
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table_io_decl_kind :: proc_layout_kind,
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table_io_decl_num_ptis :: int,
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table_io_decl_ptis :: rval,
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% pseudo-typeinfos for headvars
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table_io_decl_type_params :: rval
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).
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:- type call_site_static_data % defines MR_CallSiteStatic
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---> normal_call(
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normal_callee :: rtti_proc_label,
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normal_type_subst :: string,
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normal_file_name :: string,
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normal_line_number :: int,
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normal_goal_path :: goal_path
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)
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; special_call(
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special_file_name :: string,
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special_line_number :: int,
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special_goal_path :: goal_path
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)
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; higher_order_call(
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higher_order_file_name :: string,
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ho_line_number :: int,
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ho_goal_path :: goal_path
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)
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; method_call(
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method_file_name :: string,
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method_line_number :: int,
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method_goal_path :: goal_path
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)
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; callback(
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callback_file_name :: string,
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callback_line_number :: int,
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callback_goal_path :: goal_path
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).
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:- type label_var_info
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---> label_var_info( % part of MR_Label_Layout
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encoded_var_count :: int,
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locns_types :: rval,
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var_nums :: rval,
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type_params :: rval
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).
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:- type proc_layout_stack_traversal % defines MR_Stack_Traversal
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---> proc_layout_stack_traversal(
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entry_label :: maybe(label),
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% The proc entry label; will be
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% `no' if we don't have static
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% code addresses.
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succip_slot :: maybe(int),
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stack_slot_count :: int,
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detism :: determinism
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).
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:- type maybe_proc_id_and_exec_trace
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---> no_proc_id
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; proc_id_only
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; proc_id_and_exec_trace(proc_layout_exec_trace).
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:- type proc_layout_exec_trace % defines MR_Exec_Trace
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---> proc_layout_exec_trace(
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call_label_layout :: layout_name,
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proc_body :: maybe(rval),
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maybe_table_io_decl :: maybe(layout_name),
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var_names :: list(int), % offsets
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max_var_num :: int,
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max_r_num :: int,
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maybe_from_full_slot :: maybe(int),
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maybe_io_seq_slot :: maybe(int),
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maybe_trail_slot :: maybe(int),
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maybe_maxfr_slot :: maybe(int),
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eval_method :: eval_method,
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maybe_call_table_slot :: maybe(int),
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maybe_decl_debug_slot :: maybe(int)
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).
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:- type file_layout_data
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---> file_layout_data(
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file_name :: string,
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line_no_label_list :: assoc_list(int, layout_name)
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).
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%-----------------------------------------------------------------------------%
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:- type layout_name
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---> label_layout(label, label_vars)
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; proc_layout(proc_label, proc_layout_kind)
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% A proc layout structure for stack tracing, accurate gc
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% and/or execution tracing.
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; proc_layout_var_names(proc_label)
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% A vector of variable names (represented as offsets into
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% the string table) for a procedure layout structure.
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; table_io_decl(rtti_proc_label)
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; closure_proc_id(proc_label, int, proc_label)
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; file_layout(module_name, int)
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; file_layout_line_number_vector(module_name, int)
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; file_layout_label_layout_vector(module_name, int)
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; module_layout_string_table(module_name)
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; module_layout_file_vector(module_name)
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; module_layout_proc_vector(module_name)
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; module_layout(module_name)
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; proc_static(rtti_proc_label)
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; proc_static_call_sites(rtti_proc_label).
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:- type label_vars
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---> label_has_var_info
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; label_has_no_var_info.
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:- type proc_layout_kind
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---> proc_layout_traversal
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; proc_layout_proc_id(proc_layout_user_or_compiler)
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; proc_layout_exec_trace(proc_layout_user_or_compiler).
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:- type proc_layout_user_or_compiler
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---> user
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; compiler.
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%-----------------------------------------------------------------------------%
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