/
llds_out_file.m
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llds_out_file.m
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%----------------------------------------------------------------------------%
% vim: ft=mercury ts=4 sw=4 et
%----------------------------------------------------------------------------%
% Copyright (C) 2009-2011 The University of Melbourne.
% Copyright (C) 2013-2018, 2020-2024 The Mercury team.
% This file may only be copied under the terms of the GNU General
% Public License - see the file COPYING in the Mercury distribution.
%----------------------------------------------------------------------------%
%
% File: llds_out_file.m.
% Main authors: conway, fjh, zs.
%
% This module defines the top level routines for printing out LLDS modules.
% It looks after printing out global data, procedures (but not instructions),
% and module initialization functions.
%
%----------------------------------------------------------------------------%
:- module ll_backend.llds_out.llds_out_file.
:- interface.
:- import_module libs.
:- import_module libs.globals.
:- import_module libs.maybe_util.
:- import_module ll_backend.llds.
:- import_module bool.
:- import_module io.
%----------------------------------------------------------------------------%
% Given a c_file structure, output the LLDS code inside it into a .c file.
%
:- pred output_llds(io.text_output_stream::in, globals::in, c_file::in,
maybe_succeeded::out, io::di, io::uo) is det.
%----------------------------------------------------------------------------%
% c_data_linkage_string(DefaultLinkage, BeingDefined):
%
% Return a C string that gives the storage class appropriate for the
% definition of a global variable with the specified properties.
%
:- func c_data_linkage_string(linkage, bool) = string.
% Given a boolean that states whether a data item includes code
% addresses or not, return a C string that gives its "const-ness".
%
:- func c_data_const_string(globals, bool) = string.
%----------------------------------------------------------------------------%
% Note that we need to know the linkage not just at the definition,
% but also at every use, because if the use is prior to the definition,
% then we need to declare the name first, and the linkage used in that
% declaration must be consistent with the linkage in the definition.
% For this reason, the field in c_data (which holds the information about
% the definition) which says whether or not a data name is exported
% is not useful. Instead, we need to determine whether or not something
% is exported from its `data_name'.
:- type linkage
---> extern
; static.
%----------------------------------------------------------------------------%
%----------------------------------------------------------------------------%
:- implementation.
:- import_module backend_libs.
:- import_module backend_libs.c_util.
:- import_module backend_libs.name_mangle.
:- import_module backend_libs.proc_label.
:- import_module backend_libs.rtti.
:- import_module hlds.
:- import_module hlds.hlds_module.
:- import_module hlds.hlds_pred.
:- import_module libs.compiler_util.
:- import_module libs.file_util.
:- import_module libs.optimization_options.
:- import_module libs.trace_params.
:- import_module ll_backend.exprn_aux.
:- import_module ll_backend.layout.
:- import_module ll_backend.layout_out.
:- import_module ll_backend.llds_out.llds_out_code_addr.
:- import_module ll_backend.llds_out.llds_out_data.
:- import_module ll_backend.llds_out.llds_out_global.
:- import_module ll_backend.llds_out.llds_out_instr.
:- import_module ll_backend.llds_out.llds_out_util.
:- import_module ll_backend.rtti_out.
:- import_module mdbcomp.
:- import_module mdbcomp.prim_data.
:- import_module mdbcomp.sym_name.
:- import_module parse_tree.
:- import_module parse_tree.file_names.
:- import_module parse_tree.parse_tree_out_misc.
:- import_module parse_tree.parse_tree_output.
:- import_module parse_tree.prog_data.
:- import_module parse_tree.prog_data_foreign.
:- import_module parse_tree.prog_foreign.
:- import_module cord.
:- import_module int.
:- import_module library. % for the version number.
:- import_module list.
:- import_module map.
:- import_module maybe.
:- import_module multi_map.
:- import_module pair.
:- import_module require.
:- import_module set.
:- import_module set_tree234.
:- import_module string.
:- import_module term_context.
%----------------------------------------------------------------------------%
output_llds(ProgressStream, Globals, CFile, Succeeded, !IO) :-
ModuleName = CFile ^ cfile_modulename,
module_name_to_file_name_create_dirs(Globals, $pred,
ext_cur_ngs_gs(ext_cur_ngs_gs_target_c), ModuleName, FileName, !IO),
output_to_file_stream(ProgressStream, Globals, FileName,
output_llds_2(Globals, CFile), Succeeded, !IO).
:- pred output_llds_2(globals::in, c_file::in, io.text_output_stream::in,
list(string)::out, io::di, io::uo) is det.
output_llds_2(Globals, CFile, Stream, Errors, !IO) :-
decl_set_init(DeclSet0),
output_single_c_file(Globals, Stream, CFile, Errors, DeclSet0, _, !IO).
:- pred output_single_c_file(globals::in, io.text_output_stream::in,
c_file::in, list(string)::out,
decl_set::in, decl_set::out, io::di, io::uo) is det.
output_single_c_file(Globals, Stream, CFile, Errors, !DeclSet, !IO) :-
CFile = c_file(ModuleName, C_HeaderLines, ForeignBodyCodes, Exports,
TablingInfoStructs, ScalarCommonDatas, VectorCommonDatas,
RttiDatas, PseudoTypeInfos, HLDSVarNums, ShortLocns, LongLocns,
UserEventVarNums, UserEvents,
NoVarLabelLayouts, SVarLabelLayouts, LVarLabelLayouts,
InternalLabelToLayoutMap, EntryLabelToLayoutMap,
CallSiteStatics, CoveragePoints, ProcStatics,
ProcHeadVarNums, ProcVarNames, ProcBodyBytecodes, TSStringTable,
TableIoEntries, TableIoEntryMap, ProcEventLayouts, ExecTraces,
ProcLayoutDatas, ModuleLayoutDatas, ClosureLayoutDatas,
AllocSites, AllocSiteMap,
Modules, UserInitPredCNames, UserFinalPredCNames, ComplexityProcs),
library.version(Version, Fullarch),
module_name_to_source_file_name(ModuleName, SourceFileName, !IO),
output_c_file_intro_and_grade(Globals, Stream, SourceFileName,
Version, Fullarch, !IO),
Info = init_llds_out_info(ModuleName, SourceFileName, Globals,
InternalLabelToLayoutMap, EntryLabelToLayoutMap, TableIoEntryMap,
AllocSiteMap),
annotate_c_modules(Info, Modules, AnnotatedModules,
cord.init, EntryLabelsCord, cord.init, InternalLabelsCord,
set.init, EnvVarNameSet),
EntryLabels = cord.list(EntryLabelsCord),
InternalLabels = cord.list(InternalLabelsCord),
EnvVarNames = set.to_sorted_list(EnvVarNameSet),
output_init_c_comment(Stream, ModuleName,
UserInitPredCNames, UserFinalPredCNames, EnvVarNames, !IO),
output_c_file_mercury_headers(Info, Stream, !IO),
output_foreign_header_include_lines(Info, Stream, C_HeaderLines,
ForeignIncludeResults, !IO),
io.write_string(Stream, "\n", !IO),
output_static_linkage_define(Stream, !IO),
list.foldl2(output_scalar_common_data_decl(Stream), ScalarCommonDatas,
!DeclSet, !IO),
list.foldl2(output_vector_common_data_decl(Stream), VectorCommonDatas,
!DeclSet, !IO),
output_rtti_data_decl_list(Info, Stream, RttiDatas, !DeclSet, !IO),
output_record_c_label_decls(Info, Stream, EntryLabels, InternalLabels,
!DeclSet, !IO),
list.foldl2(output_tabling_info_struct(Info, Stream), TablingInfoStructs,
!DeclSet, !IO),
list.foldl2(output_scalar_common_data_defn(Info, Stream),
ScalarCommonDatas, !DeclSet, !IO),
list.foldl2(output_vector_common_data_defn(Info, Stream),
VectorCommonDatas, !DeclSet, !IO),
list.foldl2(output_rtti_data_defn(Info, Stream), RttiDatas, !DeclSet, !IO),
io.nl(Stream, !IO),
output_layout_array_decls(Info, Stream, PseudoTypeInfos, HLDSVarNums,
ShortLocns, LongLocns, UserEventVarNums, UserEvents,
NoVarLabelLayouts, SVarLabelLayouts, LVarLabelLayouts,
CallSiteStatics, CoveragePoints, ProcStatics,
ProcHeadVarNums, ProcVarNames, ProcBodyBytecodes, TableIoEntries,
ProcEventLayouts, ExecTraces, AllocSites, !IO),
list.foldl2(output_proc_layout_data_defn(Info, Stream),
ProcLayoutDatas, !DeclSet, !IO),
list.foldl2(output_module_layout_data_defn(Info, Stream),
ModuleLayoutDatas, !DeclSet, !IO),
list.foldl2(output_closure_layout_data_defn(Info, Stream),
ClosureLayoutDatas, !DeclSet, !IO),
io.nl(Stream, !IO),
output_record_rvals_decls(Info, Stream, PseudoTypeInfos, !DeclSet, !IO),
output_layout_array_defns(Info, Stream, PseudoTypeInfos, HLDSVarNums,
ShortLocns, LongLocns, UserEventVarNums, UserEvents,
NoVarLabelLayouts, SVarLabelLayouts, LVarLabelLayouts,
CallSiteStatics, CoveragePoints, ProcStatics,
ProcHeadVarNums, ProcVarNames, ProcBodyBytecodes, TableIoEntries,
ProcEventLayouts, ExecTraces, TSStringTable, AllocSites,
!DeclSet, !IO),
list.map_foldl(output_foreign_body_code(Info, Stream), ForeignBodyCodes,
ForeignCodeResults, !IO),
list.foldl2(output_annotated_c_module(Info, Stream), AnnotatedModules,
!DeclSet, !IO),
WriteForeignExportDefn =
(pred(ForeignExportDefn::in, IO0::di, IO::uo) is det :-
ForeignExportDefn = foreign_export_defn(ForeignExportCode),
io.write_string(Stream, ForeignExportCode, IO0, IO)
),
list.foldl(WriteForeignExportDefn, Exports, !IO),
io.write_string(Stream, "\n", !IO),
output_c_module_init_list(Info, Stream, ModuleName, AnnotatedModules,
RttiDatas, ProcLayoutDatas, ModuleLayoutDatas, ComplexityProcs,
TSStringTable, AllocSites, UserInitPredCNames, UserFinalPredCNames,
!DeclSet, !IO),
list.filter_map(maybe_is_error, ForeignIncludeResults, ErrorsA),
list.filter_map(maybe_is_error, ForeignCodeResults, ErrorsB),
Errors = ErrorsA ++ ErrorsB.
%-----------------------------------------------------------------------------%
:- pred output_c_file_mercury_headers(llds_out_info::in,
io.text_output_stream::in, io::di, io::uo) is det.
output_c_file_mercury_headers(Info, Stream, !IO) :-
io.write_string(Stream, "#define MR_ALLOW_RESET\n", !IO),
io.write_string(Stream, "#include ""mercury_imp.h""\n", !IO),
TraceLevel = Info ^ lout_trace_level,
TraceEnabled = is_exec_trace_enabled_at_given_trace_level(TraceLevel),
(
TraceEnabled = exec_trace_is_enabled,
io.write_string(Stream, "#include ""mercury_trace_base.h""\n", !IO)
;
TraceEnabled = exec_trace_is_not_enabled
),
DeepProfile = Info ^ lout_profile_deep,
(
DeepProfile = yes,
io.write_string(Stream, "#include ""mercury_deep_profiling.h""\n", !IO)
;
DeepProfile = no
).
%----------------------------------------------------------------------------%
% We need the set of entry and internal labels in a C module in several places
% for several purposes, so we compute them just once, and record the results.
%
% The set of internal labels that the generated C code actually defines
% will NOT include labels that actually occur in the LLDS code, but which
% start C loops that, and which are not referred to from anywhere except
% inside the loop; all those references get translated to C "continue"
% statements, and the label is optimized away. This is why the computation
% of the set of internal labels defined by C module must also compute
% the set of while labels, and undefined while labels. We record the results
% of this computation in the label_output_info next to the c_procedure.
:- type annotated_c_module
---> annotated_c_module(
acm_name :: string,
acm_procs :: list(annotated_c_procedure),
acm_entry_labels :: list(label),
acm_internal_labels :: list(label)
).
:- type annotated_c_procedure
---> annotated_c_procedure(
acp_proc :: c_procedure,
acp_label_output_info :: label_output_info
).
:- pred annotate_c_modules(llds_out_info::in,
list(comp_gen_c_module)::in, list(annotated_c_module)::out,
cord(label)::in, cord(label)::out, cord(label)::in, cord(label)::out,
set(string)::in, set(string)::out) is det.
annotate_c_modules(_, [], [], !EntryLabels, !InternalLabels, !EnvVarNames).
annotate_c_modules(Info,
[Module | Modules], [AnnotatedModule | AnnotatedModules],
!EntryLabels, !InternalLabels, !EnvVarNames) :-
annotate_c_module(Info, Module, AnnotatedModule,
!EntryLabels, !InternalLabels, !EnvVarNames),
annotate_c_modules(Info, Modules, AnnotatedModules,
!EntryLabels, !InternalLabels, !EnvVarNames).
:- pred annotate_c_module(llds_out_info::in,
comp_gen_c_module::in, annotated_c_module::out,
cord(label)::in, cord(label)::out, cord(label)::in, cord(label)::out,
set(string)::in, set(string)::out) is det.
annotate_c_module(Info, Module, AnnotatedModule,
!AllEntryLabels, !AllInternalLabels, !EnvVarNames) :-
Module = comp_gen_c_module(ModuleName, Procs),
annotate_c_procedures(Info, Procs, AnnotatedProcs,
cord.init, ModuleEntryLabels, cord.init, ModuleInternalLabels,
!EnvVarNames),
ModuleEntryLabelList = cord.list(ModuleEntryLabels),
ModuleInternalLabelList = cord.list(ModuleInternalLabels),
AnnotatedModule = annotated_c_module(ModuleName, AnnotatedProcs,
ModuleEntryLabelList, ModuleInternalLabelList),
!:AllEntryLabels = !.AllEntryLabels ++ ModuleEntryLabels,
!:AllInternalLabels = !.AllInternalLabels ++ ModuleInternalLabels.
:- pred annotate_c_procedures(llds_out_info::in,
list(c_procedure)::in, list(annotated_c_procedure)::out,
cord(label)::in, cord(label)::out, cord(label)::in, cord(label)::out,
set(string)::in, set(string)::out) is det.
annotate_c_procedures(_, [], [],
!AllEntryLabels, !AllInternalLabels, !EnvVarNames).
annotate_c_procedures(Info, [Proc | Procs], [AnnotatedProc | AnnotatedProcs],
!AllEntryLabels, !AllInternalLabels, !EnvVarNames) :-
annotate_c_procedure(Info, Proc, AnnotatedProc,
!AllEntryLabels, !AllInternalLabels, !EnvVarNames),
annotate_c_procedures(Info, Procs, AnnotatedProcs,
!AllEntryLabels, !AllInternalLabels, !EnvVarNames).
:- pred annotate_c_procedure(llds_out_info::in,
c_procedure::in, annotated_c_procedure::out,
cord(label)::in, cord(label)::out, cord(label)::in, cord(label)::out,
set(string)::in, set(string)::out) is det.
annotate_c_procedure(Info, Proc, AnnotatedProc,
!AllEntryLabels, !AllInternalLabels, !EnvVarNames) :-
ProcEnvVarNames = Proc ^ cproc_c_global_vars,
set.union(ProcEnvVarNames, !EnvVarNames),
Instrs = Proc ^ cproc_code,
gather_labels_from_instrs_acc(Instrs,
[], RevEntryLabels, [], RevInternalLabels0),
list.reverse(RevEntryLabels, EntryLabels),
list.reverse(RevInternalLabels0, InternalLabels0),
find_caller_label(Instrs, CallerLabel),
find_cont_labels(Instrs, set_tree234.init, ContLabels),
EmitCLoops = Info ^ lout_emit_c_loops,
(
EmitCLoops = do_not_emit_c_loops,
WhileLabels = set_tree234.init,
UndefWhileLabels = set_tree234.init
;
EmitCLoops = emit_c_loops,
find_while_labels(Instrs, set_tree234.init, WhileLabels),
% We compute UndefWhileLabels by starting with an overapproximation,
% which we then whittle down in two steps. Each whittling step
% removes from our initial UndefWhileLabels set some labels that
% actually do need to be defined.
%
% Step 1: if a label is in ContLabels, we cannot avoid defining it.
set_tree234.difference(WhileLabels, ContLabels, UndefWhileLabels0),
( if set_tree234.is_empty(UndefWhileLabels0) then
UndefWhileLabels = UndefWhileLabels0
else
% Step 2: if a label that starts a while loop is branched to
% from outside the while loop it starts, we cannot avoid
% defining it.
find_while_labels_to_define(Instrs, no, WhileLabels,
UndefWhileLabels0, UndefWhileLabels)
)
),
LabelOutputInfo = label_output_info(CallerLabel, ContLabels,
WhileLabels, UndefWhileLabels),
( if set_tree234.is_empty(UndefWhileLabels) then
InternalLabels = InternalLabels0
else
list.negated_filter(set_tree234.contains(UndefWhileLabels),
InternalLabels0, InternalLabels)
),
AnnotatedProc = annotated_c_procedure(Proc, LabelOutputInfo),
!:AllEntryLabels = !.AllEntryLabels ++ cord.from_list(EntryLabels),
!:AllInternalLabels = !.AllInternalLabels ++
cord.from_list(InternalLabels).
:- pred gather_labels_from_instrs_acc(list(instruction)::in,
list(label)::in, list(label)::out,
list(label)::in, list(label)::out) is det.
gather_labels_from_instrs_acc([], !RevEntryLabels, !RevInternalLabels).
gather_labels_from_instrs_acc([Instr | Instrs],
!RevEntryLabels, !RevInternalLabels) :-
( if Instr = llds_instr(label(Label), _) then
(
Label = entry_label(_, _),
!:RevEntryLabels = [Label | !.RevEntryLabels]
;
Label = internal_label(_, _),
!:RevInternalLabels = [Label | !.RevInternalLabels]
)
else
true
),
gather_labels_from_instrs_acc(Instrs,
!RevEntryLabels, !RevInternalLabels).
%----------------------------------------------------------------------------%
:- pred output_c_module_init_list(llds_out_info::in,
io.text_output_stream::in, module_name::in,
list(annotated_c_module)::in, list(rtti_data)::in,
list(proc_layout_data)::in, list(module_layout_data)::in,
list(complexity_proc_info)::in, list(string)::in,
list(alloc_site_info)::in, list(string)::in, list(string)::in,
decl_set::in, decl_set::out, io::di, io::uo) is det.
output_c_module_init_list(Info, Stream, ModuleName, AnnotatedModules,
RttiDatas, ProcLayoutDatas, ModuleLayoutDatas, ComplexityProcs,
TSStringTable, AllocSites, InitPredNames, FinalPredNames,
!DeclSet, !IO) :-
MustInit =
( pred(Module::in) is semidet :-
module_defines_label_with_layout(Info, Module)
),
list.filter(MustInit, AnnotatedModules,
AlwaysInitAnnotatedModules, MaybeInitAnnotatedModules),
list.chunk(AlwaysInitAnnotatedModules, 40,
AlwaysInitAnnotatedModuleBunches),
list.chunk(MaybeInitAnnotatedModules, 40,
MaybeInitAnnotatedModuleBunches),
output_init_bunch_defs(Info, Stream, "always", 0,
AlwaysInitAnnotatedModuleBunches, !IO),
(
MaybeInitAnnotatedModuleBunches = []
;
MaybeInitAnnotatedModuleBunches = [_ | _],
output_init_bunch_defs(Info, Stream, "maybe", 0,
MaybeInitAnnotatedModuleBunches, !IO)
),
ModuleInitName = make_init_name(ModuleName),
io.write_string(Stream,
"/* suppress gcc -Wmissing-decls warnings */\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init(void);\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_type_tables(void);\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_debugger(void);\n", !IO),
io.write_string(Stream, "#ifdef MR_DEEP_PROFILING\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream,
"write_out_proc_statics(FILE *deep_fp, FILE *procrep_fp);\n", !IO),
io.write_string(Stream, "#endif\n", !IO),
io.write_string(Stream, "#ifdef MR_RECORD_TERM_SIZES\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_complexity_procs(void);\n", !IO),
io.write_string(Stream, "#endif\n", !IO),
io.write_string(Stream, "#ifdef MR_THREADSCOPE\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_threadscope_string_table(void);\n", !IO),
io.write_string(Stream, "#endif\n", !IO),
(
InitPredNames = []
;
InitPredNames = [_ | _],
io.format(Stream, "void %srequired_init(void);\n",
[s(ModuleInitName)], !IO)
),
(
FinalPredNames = []
;
FinalPredNames = [_ | _],
io.format(Stream, "void %srequired_final(void);\n",
[s(ModuleInitName)], !IO)
),
io.format(Stream, "const char *%sgrade_check(void);\n",
[s(ModuleInitName)], !IO),
io.write_string(Stream, "\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
io.write_string(Stream, "\tstatic MR_bool done = MR_FALSE;\n", !IO),
io.write_string(Stream, "\tif (done) {\n", !IO),
io.write_string(Stream, "\t\treturn;\n", !IO),
io.write_string(Stream, "\t}\n", !IO),
io.write_string(Stream, "\tdone = MR_TRUE;\n", !IO),
output_init_bunch_calls(Info, Stream, "always", 0,
AlwaysInitAnnotatedModuleBunches, !IO),
(
MaybeInitAnnotatedModuleBunches = []
;
MaybeInitAnnotatedModuleBunches = [_ | _],
output_init_bunch_calls(Info, Stream, "maybe", 0,
MaybeInitAnnotatedModuleBunches, !IO)
),
output_c_data_init_list(Stream, RttiDatas, !IO),
output_alloc_sites_init(Info, Stream, AllocSites, !IO),
% The call to the debugger initialization function is for bootstrapping;
% once the debugger has been modified to call do_init_modules_debugger()
% and all debuggable object files created before this change have been
% overwritten, it can be deleted.
io.write_string(Stream, "\t", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_debugger();\n", !IO),
io.write_string(Stream, "}\n\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_type_tables(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
io.write_string(Stream, "\tstatic MR_bool done = MR_FALSE;\n", !IO),
io.write_string(Stream, "\tif (done) {\n", !IO),
io.write_string(Stream, "\t\treturn;\n", !IO),
io.write_string(Stream, "\t}\n", !IO),
io.write_string(Stream, "\tdone = MR_TRUE;\n", !IO),
output_type_tables_init_list(Stream, RttiDatas, !IO),
io.write_string(Stream, "}\n\n", !IO),
io.write_string(Stream, "\n", !IO),
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_debugger(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
io.write_string(Stream, "\tstatic MR_bool done = MR_FALSE;\n", !IO),
io.write_string(Stream, "\tif (done) {\n", !IO),
io.write_string(Stream, "\t\treturn;\n", !IO),
io.write_string(Stream, "\t}\n", !IO),
io.write_string(Stream, "\tdone = MR_TRUE;\n", !IO),
output_debugger_init_list(Stream, ModuleLayoutDatas, !IO),
io.write_string(Stream, "}\n\n", !IO),
io.write_string(Stream, "#ifdef MR_DEEP_PROFILING\n", !IO),
io.write_string(Stream, "\nvoid ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream,
"write_out_proc_statics(FILE *deep_fp, FILE *procrep_fp)\n", !IO),
io.write_string(Stream, "{\n", !IO),
io.write_string(Stream,
"\tMR_write_out_module_proc_reps_start(procrep_fp, &", !IO),
ModuleLayoutName = module_layout(ModuleName),
output_layout_name(Stream, ModuleLayoutName, !IO),
io.write_string(Stream, ");\n", !IO),
output_write_proc_static_list(Stream, ProcLayoutDatas, !IO),
io.write_string(Stream,
"\tMR_write_out_module_proc_reps_end(procrep_fp);\n", !IO),
io.write_string(Stream, "}\n", !IO),
io.write_string(Stream, "\n#endif\n\n", !IO),
io.write_string(Stream, "#ifdef MR_RECORD_TERM_SIZES\n", !IO),
output_complexity_arg_info_arrays(Stream, ComplexityProcs, !IO),
io.write_string(Stream, "\nvoid ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_complexity_procs(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
output_init_complexity_proc_list(Stream, ComplexityProcs, !IO),
io.write_string(Stream, "}\n", !IO),
io.write_string(Stream, "\n#endif\n\n", !IO),
io.write_string(Stream, "#ifdef MR_THREADSCOPE\n", !IO),
io.write_string(Stream, "\nvoid ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "init_threadscope_string_table(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
(
TSStringTable = []
;
TSStringTable = [_ | _],
TSStringTableSize = length(TSStringTable),
io.write_string(Stream,
"\tMR_threadscope_register_strings_array(\n", !IO),
io.write_string(Stream, "\t\t", !IO),
MangledModuleName = Info ^ lout_mangled_module_name,
output_layout_array_name(Stream, use_layout_macro, MangledModuleName,
threadscope_string_table_array, !IO),
io.format(Stream, ", %d);\n", [i(TSStringTableSize)], !IO)
),
io.write_string(Stream, "}\n", !IO),
io.write_string(Stream, "\n#endif\n\n", !IO),
(
InitPredNames = []
;
InitPredNames = [_ | _],
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "required_init(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
output_required_init_or_final_calls(Stream, InitPredNames, !IO),
io.write_string(Stream, "}\n", !IO),
io.nl(Stream, !IO)
),
(
FinalPredNames = []
;
FinalPredNames = [_ | _],
io.write_string(Stream, "void ", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "required_final(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
output_required_init_or_final_calls(Stream, FinalPredNames, !IO),
io.write_string(Stream, "}\n", !IO),
io.nl(Stream, !IO)
),
io.write_string(Stream,
"// Ensure everything is compiled with the same grade.\n", !IO),
io.write_string(Stream, "const char *", !IO),
io.write_string(Stream, ModuleInitName, !IO),
io.write_string(Stream, "grade_check(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
io.write_string(Stream, " return &MR_GRADE_VAR;\n", !IO),
io.write_string(Stream, "}\n", !IO).
:- pred module_defines_label_with_layout(llds_out_info::in,
annotated_c_module::in) is semidet.
module_defines_label_with_layout(Info, AnnotatedModule) :-
AnnotatedModule = annotated_c_module(_, _, EntryLabels, InternalLabels),
% If a map is empty, there is no point in using it as a filter,
% and we can save ourselves the cost of a list traversal; we know
% the traversal wouldn't be able to find anything.
(
InternalLabelToLayoutMap = Info ^ lout_internal_label_to_layout,
\+ map.is_empty(InternalLabelToLayoutMap),
find_first_match(internal_label_has_layout(InternalLabelToLayoutMap),
InternalLabels, _)
;
EntryLabelToLayoutMap = Info ^ lout_entry_label_to_layout,
\+ map.is_empty(EntryLabelToLayoutMap),
find_first_match(entry_label_has_layout(EntryLabelToLayoutMap),
EntryLabels, _)
).
:- pred internal_label_has_layout(map(label, layout_slot_name)::in, label::in)
is semidet.
internal_label_has_layout(InternalLabelToLayoutMap, Label) :-
map.search(InternalLabelToLayoutMap, Label, _).
:- pred entry_label_has_layout(map(label, data_id)::in, label::in)
is semidet.
entry_label_has_layout(EntryLabelToLayoutMap, Label) :-
map.search(EntryLabelToLayoutMap, Label, _).
%----------------------------------------------------------------------------%
:- pred output_init_bunch_defs(llds_out_info::in, io.text_output_stream::in,
string::in, int::in, list(list(annotated_c_module))::in,
io::di, io::uo) is det.
output_init_bunch_defs(_, _, _, _, [], !IO).
output_init_bunch_defs(Info, Stream, InitStatus, Seq,
[Bunch | Bunches], !IO) :-
io.write_string(Stream, "static void ", !IO),
output_bunch_name(Info, Stream, InitStatus, Seq, !IO),
io.write_string(Stream, "(void)\n", !IO),
io.write_string(Stream, "{\n", !IO),
output_init_bunch_def(Stream, Bunch, !IO),
io.write_string(Stream, "}\n\n", !IO),
NextSeq = Seq + 1,
output_init_bunch_defs(Info, Stream, InitStatus, NextSeq, Bunches, !IO).
:- pred output_init_bunch_def(io.text_output_stream::in,
list(annotated_c_module)::in, io::di, io::uo) is det.
output_init_bunch_def(_, [], !IO).
output_init_bunch_def(Stream, [AnnotatedModule | AnnotatedModules], !IO) :-
C_ModuleName = AnnotatedModule ^ acm_name,
io.format(Stream, "\t%s();\n", [s(C_ModuleName)], !IO),
output_init_bunch_def(Stream, AnnotatedModules, !IO).
:- pred output_init_bunch_calls(llds_out_info::in, io.text_output_stream::in,
string::in, int::in, list(list(annotated_c_module))::in,
io::di, io::uo) is det.
output_init_bunch_calls(_, _, _, _, [], !IO).
output_init_bunch_calls(Info, Stream, InitStatus, Seq, [_ | Bunches], !IO) :-
io.write_string(Stream, "\t", !IO),
output_bunch_name(Info, Stream, InitStatus, Seq, !IO),
io.write_string(Stream, "();\n", !IO),
NextSeq = Seq + 1,
output_init_bunch_calls(Info, Stream, InitStatus, NextSeq, Bunches, !IO).
:- pred output_bunch_name(llds_out_info::in, io.text_output_stream::in,
string::in, int::in, io::di, io::uo) is det.
output_bunch_name(Info, Stream, InitStatus, Number, !IO) :-
io.write_string(Stream, "mercury__", !IO),
MangledModuleName = Info ^ lout_mangled_module_name,
io.format(Stream, "%s_%s_bunch_%d",
[s(MangledModuleName), s(InitStatus), i(Number)], !IO).
% Output MR_INIT_TYPE_CTOR_INFO(TypeCtorInfo, Typector);
% for each type_ctor_info defined in this module.
%
:- pred output_c_data_init_list(io.text_output_stream::in,
list(rtti_data)::in, io::di, io::uo) is det.
output_c_data_init_list(_, [], !IO).
output_c_data_init_list(Stream, [Data | Datas], !IO) :-
rtti_out.init_rtti_data_if_nec(Stream, Data, !IO),
output_c_data_init_list(Stream, Datas, !IO).
% Output code to register the allocation sites defined in this module.
%
:- pred output_alloc_sites_init(llds_out_info::in, io.text_output_stream::in,
list(alloc_site_info)::in, io::di, io::uo) is det.
output_alloc_sites_init(Info, Stream, AllocSites, !IO) :-
(
AllocSites = []
;
AllocSites = [_ | _],
MangledModuleName = Info ^ lout_mangled_module_name,
NumAllocSites = list.length(AllocSites),
io.write_string(Stream,
"#ifdef MR_MPROF_PROFILE_MEMORY_ATTRIBUTION\n", !IO),
io.write_string(Stream, "\tMR_register_alloc_sites(", !IO),
output_layout_array_name(Stream, do_not_use_layout_macro,
MangledModuleName, alloc_site_array, !IO),
io.write_string(Stream, ", ", !IO),
io.write_int(Stream, NumAllocSites, !IO),
io.write_string(Stream, ");\n", !IO),
io.write_string(Stream, "#endif\n", !IO)
).
% Output code to register each type_ctor_info defined in this module.
%
:- pred output_type_tables_init_list(io.text_output_stream::in,
list(rtti_data)::in, io::di, io::uo) is det.
output_type_tables_init_list(_, [], !IO).
output_type_tables_init_list(Stream, [Data | Datas], !IO) :-
rtti_out.register_rtti_data_if_nec(Stream, Data, !IO),
output_type_tables_init_list(Stream, Datas, !IO).
% Output calls to MR_register_module_layout()
% for each module layout defined in this module
% (there should only be one, of course).
%
:- pred output_debugger_init_list(io.text_output_stream::in,
list(module_layout_data)::in, io::di, io::uo) is det.
output_debugger_init_list(_, [], !IO).
output_debugger_init_list(Stream, [Data | Datas], !IO) :-
Data = module_layout_data(ModuleName, _, _, _, _),
io.write_string(Stream,
"\tif (MR_register_module_layout != NULL) {\n", !IO),
io.write_string(Stream, "\t\t(*MR_register_module_layout)(", !IO),
io.write_string(Stream, "\n\t\t\t&", !IO),
output_layout_name(Stream, module_layout(ModuleName), !IO),
io.write_string(Stream, ");\n\t}\n", !IO),
output_debugger_init_list(Stream, Datas, !IO).
:- pred output_write_proc_static_list(io.text_output_stream::in,
list(proc_layout_data)::in, io::di, io::uo) is det.
output_write_proc_static_list(_, [], !IO).
output_write_proc_static_list(Stream, [ProcLayout | ProcLayouts], !IO) :-
ProcLayout = proc_layout_data(RttiProcLabel, _, MaybeMore),
( if MaybeMore = proc_id_and_more(yes(_ProcStatic), _, _, _) then
ProcLabel = make_proc_label_from_rtti(RttiProcLabel),
UserOrUCI = proc_label_user_or_uci(ProcLabel),
Kind = proc_layout_proc_id(UserOrUCI),
(
UserOrUCI = user,
io.write_string(Stream,
"\tMR_write_out_user_proc_static(deep_fp, procrep_fp,\n\t\t&",
!IO)
;
UserOrUCI = uci,
io.write_string(Stream,
"\tMR_write_out_uci_proc_static(deep_fp, procrep_fp,\n\t\t&",
!IO)
),
output_layout_name(Stream, proc_layout(RttiProcLabel, Kind), !IO),
io.write_string(Stream, ");\n", !IO)
else
true
),
output_write_proc_static_list(Stream, ProcLayouts, !IO).
%----------------------------------------------------------------------------%
:- pred output_required_init_or_final_calls(io.text_output_stream::in,
list(string)::in, io::di, io::uo) is det.
output_required_init_or_final_calls(_, [], !IO).
output_required_init_or_final_calls(Stream, [Name | Names], !IO) :-
io.format(Stream, "\t%s();\n", [s(Name)], !IO),
output_required_init_or_final_calls(Stream, Names, !IO).
%----------------------------------------------------------------------------%
:- pred output_annotated_c_module(llds_out_info::in, io.text_output_stream::in,
annotated_c_module::in, decl_set::in, decl_set::out,
io::di, io::uo) is det.
output_annotated_c_module(Info, Stream, AnnotatedModule, !DeclSet, !IO) :-
AnnotatedModule = annotated_c_module(ModuleName, AnnotatedProcedures,
EntryLabels, InternalLabels),
io.write_string(Stream, "\n", !IO),
list.foldl2(output_record_c_procedure_decls(Info, Stream),
AnnotatedProcedures, !DeclSet, !IO),
io.write_string(Stream, "\n", !IO),
io.write_string(Stream, "MR_BEGIN_MODULE(", !IO),
io.write_string(Stream, ModuleName, !IO),
io.write_string(Stream, ")\n", !IO),
output_c_label_inits(Info, Stream, EntryLabels, InternalLabels, !IO),
io.write_string(Stream, "MR_BEGIN_CODE\n", !IO),
list.foldl(output_annotated_c_procedure(Info, Stream),
AnnotatedProcedures, !IO),
io.write_string(Stream, "MR_END_MODULE\n", !IO).
%----------------------------------------------------------------------------%
:- pred output_static_linkage_define(io.text_output_stream::in,
io::di, io::uo) is det.
output_static_linkage_define(Stream, !IO) :-
% The MS Visual C compiler treats the following declarations as
% definitions, for which it cannot determine the size and hence aborts:
% static const struct s_name typename[];
% However if we mark the linkage as extern, it treats it as a declaration.
io.write_string(Stream, "#ifdef _MSC_VER\n", !IO),
io.write_string(Stream, "#define MR_STATIC_LINKAGE extern\n", !IO),
io.write_string(Stream, "#else\n", !IO),
io.write_string(Stream, "#define MR_STATIC_LINKAGE static\n", !IO),
io.write_string(Stream, "#endif\n", !IO).
%----------------------------------------------------------------------------%
:- pred output_foreign_body_code(llds_out_info::in, io.text_output_stream::in,
foreign_body_code::in, maybe_error::out, io::di, io::uo) is det.
output_foreign_body_code(Info, Stream, ForeignBodyCode, Res, !IO) :-
ForeignBodyCode = foreign_body_code(Lang, LiteralOrInclude, Context),
(
Lang = lang_c,
output_foreign_decl_or_code(Info, Stream, "foreign_code", Lang,
LiteralOrInclude, Context, Res, !IO)
;
( Lang = lang_java
; Lang = lang_csharp
),
unexpected($pred, "unimplemented: foreign code other than C")
).
:- pred output_foreign_header_include_lines(llds_out_info::in,
io.text_output_stream::in, list(foreign_decl_code)::in,
list(maybe_error)::out, io::di, io::uo) is det.
output_foreign_header_include_lines(Info, Stream, Decls, Results, !IO) :-
list.map_foldl2(output_foreign_header_include_line(Info, Stream),
Decls, Results, set.init, _, !IO).
:- pred output_foreign_header_include_line(llds_out_info::in,
io.text_output_stream::in, foreign_decl_code::in, maybe_error::out,
set(foreign_literal_or_include)::in, set(foreign_literal_or_include)::out,
io::di, io::uo) is det.
output_foreign_header_include_line(Info, Stream, Decl, Res,
!AlreadyDone, !IO) :-
Decl = foreign_decl_code(Lang, _IsLocal, LiteralOrInclude, Context),
(
Lang = lang_c,
% This will not deduplicate the content of included files.
( if set.insert_new(LiteralOrInclude, !AlreadyDone) then
output_foreign_decl_or_code(Info, Stream, "foreign_decl", Lang,
LiteralOrInclude, Context, Res, !IO)
else
Res = ok
)
;
( Lang = lang_java
; Lang = lang_csharp
),
unexpected($pred, "foreign decl code other than C")
).
:- pred output_foreign_decl_or_code(llds_out_info::in,
io.text_output_stream::in, string::in, foreign_language::in,
foreign_literal_or_include::in, prog_context::in,
maybe_error::out, io::di, io::uo) is det.
output_foreign_decl_or_code(Info, Stream, PragmaType, Lang, LiteralOrInclude,
Context, Res, !IO) :-
AutoComments = Info ^ lout_auto_comments,
ForeignLineNumbers = Info ^ lout_foreign_line_numbers,
( if
AutoComments = auto_comments,
ForeignLineNumbers = yes
then
io.write_string(Stream, "/* ", !IO),
parse_tree_out_misc.write_context(Stream, Context, !IO),
io.write_string(Stream, " pragma ", !IO),
io.write_string(Stream, PragmaType, !IO),
io.write_string(Stream, "(", !IO),
io.write(Stream, Lang, !IO),
io.write_string(Stream, ") */\n", !IO)
else
true
),
(
LiteralOrInclude = floi_literal(Code),
output_set_line_num(Stream, ForeignLineNumbers, Context, !IO),
io.write_string(Stream, Code, !IO),
Res = ok
;
LiteralOrInclude = floi_include_file(IncludeFileName),
SourceFileName = Info ^ lout_source_file_name,
make_include_file_path(SourceFileName, IncludeFileName, IncludePath),
output_set_line_num(Stream, ForeignLineNumbers,
context(IncludePath, 1), !IO),
write_include_file_contents(Stream, IncludePath, Res, !IO)
),
io.nl(Stream, !IO),
output_reset_line_num(Stream, ForeignLineNumbers, !IO).
:- pred output_record_c_label_decls(llds_out_info::in,
io.text_output_stream::in, list(label)::in, list(label)::in,
decl_set::in, decl_set::out, io::di, io::uo) is det.
output_record_c_label_decls(Info, Stream, EntryLabels, InternalLabels,
!DeclSet, !IO) :-
group_decl_c_labels(InternalLabels, multi_map.init, InternalLabelMap),
multi_map.to_assoc_list(InternalLabelMap, InternalLabelList),
list.foldl2(output_record_internal_label_decls(Stream), InternalLabelList,
!DeclSet, !IO),
list.foldl2(output_record_entry_label_decl(Info, Stream), EntryLabels,
!DeclSet, !IO).
:- pred group_decl_c_labels(list(label)::in,
multi_map(proc_label, int)::in, multi_map(proc_label, int)::out) is det.
group_decl_c_labels([], !InternalLabelMap).
group_decl_c_labels([Label | Labels], !InternalLabelMap) :-
(
Label = internal_label(LabelNum, ProcLabel),
multi_map.set(ProcLabel, LabelNum, !InternalLabelMap)
;
Label = entry_label(_, _),
unexpected($pred, "entry label")
),
group_decl_c_labels(Labels, !InternalLabelMap).
:- pred output_record_internal_label_decls(io.text_output_stream::in,
pair(proc_label, list(int))::in,
decl_set::in, decl_set::out, io::di, io::uo) is det.
output_record_internal_label_decls(Stream, ProcLabel - RevLabelNums,
!DeclSet, !IO) :-
list.reverse(RevLabelNums, LabelNums),
% There must be a macro of the form MR_decl_label<n> for every <n>
% up to MaxChunkSize.
MaxChunkSize = 10,
list.chunk(LabelNums, MaxChunkSize, LabelNumChunks),
list.foldl2(output_record_internal_label_decl_group(Stream, ProcLabel),
LabelNumChunks, !DeclSet, !IO),
list.foldl(insert_internal_label_code_addr_decl(ProcLabel), LabelNums,
!DeclSet).
:- pred output_record_internal_label_decl_group(io.text_output_stream::in,
proc_label::in, list(int)::in,
decl_set::in, decl_set::out, io::di, io::uo) is det.
output_record_internal_label_decl_group(Stream, ProcLabel, LabelNums,
!DeclSet, !IO) :-
io.format(Stream, "MR_decl_label%d(%s, ",
[i(list.length(LabelNums)),
s(proc_label_to_c_string(do_not_add_label_prefix, ProcLabel))], !IO),
write_out_list(add_int, ",", LabelNums, Stream, !IO),
io.write_string(Stream, ")\n", !IO),