Add support for the TASKING compiler family, and its MIL linking feature

docs/markdown/Reference-tables.md

@@ -49,6 +49,7 @@ These are return values of the `get_id` (Compiler family) and
 | armasm    | Microsoft Macro Assembler for ARM and AARCH64 (Since 0.64.0) | |
 | mwasmarm        | Metrowerks Assembler for Embedded ARM | |
 | mwasmeppc       | Metrowerks Assembler for Embedded PowerPC | |
+| tasking         | TASKING VX-toolset     | |
 
 ## Linker ids
 
@@ -80,6 +81,7 @@ These are return values of the `get_linker_id` method in a compiler object.
 | ccomp      | CompCert used as the linker driver          |
 | mwldarm    | The Metrowerks Linker with the ARM interface, used with mwccarm only |
 | mwldeppc   | The Metrowerks Linker with the PowerPC interface, used with mwcceppc only |
+| tasking    | TASKING VX-toolset                          |
 
 For languages that don't have separate dynamic linkers such as C# and Java, the
 `get_linker_id` will return the compiler name.
@@ -139,6 +141,7 @@ set in the cross file.
 | wasm64              | 64 bit Webassembly       |
 | x86                 | 32 bit x86 processor     |
 | x86_64              | 64 bit x86 processor     |
+| tricore             | Tricore 32 bit processor |
 
 
 Any cpu family not listed in the above list is not guaranteed to

mesonbuild/backend/backends.py

@@ -24,10 +24,11 @@
 from .. import programs
 from .. import mesonlib
 from .. import mlog
-from ..compilers import LANGUAGES_USING_LDFLAGS, detect
+from ..compilers import LANGUAGES_USING_LDFLAGS, detect, lang_suffixes
 from ..mesonlib import (
     File, MachineChoice, MesonException, OrderedSet,
-    ExecutableSerialisation, classify_unity_sources,
+    ExecutableSerialisation, EnvironmentException,
+    classify_unity_sources, get_compiler_for_source
 )
 from ..options import OptionKey
 
@@ -837,7 +838,7 @@ def canonicalize_filename(fname: str) -> str:
             fname = fname.replace(ch, '_')
         return hashed + fname
 
-    def object_filename_from_source(self, target: build.BuildTarget, source: 'FileOrString', targetdir: T.Optional[str] = None) -> str:
+    def object_filename_from_source(self, target: build.BuildTarget, compiler: Compiler, source: 'FileOrString', targetdir: T.Optional[str] = None) -> str:
         assert isinstance(source, mesonlib.File)
         if isinstance(target, build.CompileTarget):
             return target.sources_map[source]
@@ -868,7 +869,16 @@ def object_filename_from_source(self, target: build.BuildTarget, source: 'FileOr
                 gen_source = os.path.relpath(os.path.join(build_dir, rel_src),
                                              os.path.join(self.environment.get_source_dir(), target.get_subdir()))
         machine = self.environment.machines[target.for_machine]
-        ret = self.canonicalize_filename(gen_source) + '.' + machine.get_object_suffix()
+        object_suffix = machine.get_object_suffix()
+        # For the TASKING compiler, in case of LTO or prelinking the object suffix has to be .mil
+        if compiler.get_id() == 'tasking':
+            if target.get_option(OptionKey('b_lto')) or (isinstance(target, build.StaticLibrary) and target.prelink):
+                if not source.rsplit('.', 1)[1] in lang_suffixes['c']:
+                    if isinstance(target, build.StaticLibrary) and not target.prelink:
+                        raise EnvironmentException('Tried using MIL linking for a static library with a assembly file. This can only be done if the static library is prelinked or disable \'b_lto\'.')
+                else:
+                    object_suffix = 'mil'
+        ret = self.canonicalize_filename(gen_source) + '.' + object_suffix
         if targetdir is not None:
             return os.path.join(targetdir, ret)
         return ret
@@ -924,7 +934,8 @@ def _determine_ext_objs(self, extobj: 'build.ExtractedObjects', proj_dir_to_buil
                     sources.append(_src)
 
         for osrc in sources:
-            objname = self.object_filename_from_source(extobj.target, osrc, targetdir)
+            compiler = get_compiler_for_source(extobj.target.compilers.values(), osrc)
+            objname = self.object_filename_from_source(extobj.target, compiler, osrc, targetdir)
             objpath = os.path.join(proj_dir_to_build_root, objname)
             result.append(objpath)
 

mesonbuild/backend/ninjabackend.py

@@ -243,7 +243,7 @@ def _quoter(x: NinjaCommandArg, qf: T.Callable[[str], str] = quote_func) -> str:
     def write(self, outfile: T.TextIO) -> None:
         rspfile_args = self.args
         rspfile_quote_func: T.Callable[[str], str]
-        if self.rspfile_quote_style is RSPFileSyntax.MSVC:
+        if self.rspfile_quote_style in {RSPFileSyntax.MSVC, RSPFileSyntax.TASKING}:
             rspfile_quote_func = cmd_quote
             rspfile_args = [NinjaCommandArg('$in_newline', arg.quoting) if arg.s == '$in' else arg for arg in rspfile_args]
         else:
@@ -258,7 +258,10 @@ def rule_iter() -> T.Iterable[str]:
         for rsp in rule_iter():
             outfile.write(f'rule {self.name}{rsp}\n')
             if rsp == '_RSP':
-                outfile.write(' command = {} @$out.rsp\n'.format(' '.join([self._quoter(x) for x in self.command])))
+                if self.rspfile_quote_style is RSPFileSyntax.TASKING:
+                    outfile.write(' command = {} --option-file=$out.rsp\n'.format(' '.join([self._quoter(x) for x in self.command])))
+                else:
+                    outfile.write(' command = {} @$out.rsp\n'.format(' '.join([self._quoter(x) for x in self.command])))
                 outfile.write(' rspfile = $out.rsp\n')
                 outfile.write(' rspfile_content = {}\n'.format(' '.join([self._quoter(x, rspfile_quote_func) for x in rspfile_args])))
             else:
@@ -410,7 +413,7 @@ def write(self, outfile: T.TextIO) -> None:
         outfile.write(line)
 
         if use_rspfile:
-            if self.rule.rspfile_quote_style is RSPFileSyntax.MSVC:
+            if self.rule.rspfile_quote_style in {RSPFileSyntax.MSVC, RSPFileSyntax.TASKING}:
                 qf = cmd_quote
             else:
                 qf = gcc_rsp_quote
@@ -730,6 +733,11 @@ def generate_compdb(self) -> None:
                           for ext in ['', '_RSP']]
                 rules += [f"{rule}{ext}" for rule in [self.compiler_to_pch_rule_name(compiler)]
                           for ext in ['', '_RSP']]
+                # Add custom MIL link rules to get the files compiled by the TASKING compiler family to MIL files included in the database
+                if compiler.get_id() == 'tasking':
+                    rule = self.get_compiler_rule_name('tasking_mil_compile', compiler.for_machine)
+                    rules.append(rule)
+                    rules.append(f'{rule}_RSP')
         compdb_options = ['-x'] if mesonlib.version_compare(self.ninja_version, '>=1.9') else []
         ninja_compdb = self.ninja_command + ['-t', 'compdb'] + compdb_options + rules
         builddir = self.environment.get_build_dir()
@@ -1076,7 +1084,10 @@ def generate_target(self, target) -> None:
             # Skip the link stage for this special type of target
             return
         linker, stdlib_args = self.determine_linker_and_stdlib_args(target)
-        if isinstance(target, build.StaticLibrary) and target.prelink:
+
+        if not isinstance(target, build.StaticLibrary):
+            final_obj_list = obj_list
+        elif target.prelink:
             final_obj_list = self.generate_prelink(target, obj_list)
         else:
             final_obj_list = obj_list
@@ -2484,6 +2495,33 @@ def generate_llvm_ir_compile_rule(self, compiler) -> None:
         self.add_rule(NinjaRule(rule, command, args, description, **options))
         self.created_llvm_ir_rule[compiler.for_machine] = True
 
+    def generate_tasking_mil_compile_rules(self, compiler: Compiler) -> None:
+        rule = self.get_compiler_rule_name('tasking_mil_compile', compiler.for_machine)
+        depargs = NinjaCommandArg.list(compiler.get_dependency_gen_args('$out', '$DEPFILE'), Quoting.none)
+        command = compiler.get_exelist()
+        args = ['$ARGS'] + depargs + NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none) + ['-cm', '$in']
+        description = 'Compiling to C object $in'
+        if compiler.get_argument_syntax() == 'msvc':
+            deps = 'msvc'
+            depfile = None
+        else:
+            deps = 'gcc'
+            depfile = '$DEPFILE'
+
+        options = self._rsp_options(compiler)
+
+        self.add_rule(NinjaRule(rule, command, args, description, **options, deps=deps, depfile=depfile))
+
+    def generate_tasking_mil_link_rules(self, compiler: Compiler) -> None:
+        rule = self.get_compiler_rule_name('tasking_mil_link', compiler.for_machine)
+        command = compiler.get_exelist()
+        args = ['$ARGS', '--mil-link'] + NinjaCommandArg.list(compiler.get_output_args('$out'), Quoting.none) + ['-c', '$in']
+        description = 'MIL linking object $out'
+
+        options = self._rsp_options(compiler)
+
+        self.add_rule(NinjaRule(rule, command, args, description, **options))
+
     def generate_compile_rule_for(self, langname: str, compiler: Compiler) -> None:
         if langname == 'java':
             self.generate_java_compile_rule(compiler)
@@ -2574,6 +2612,8 @@ def generate_compile_rules(self) -> None:
             for langname, compiler in clist.items():
                 if compiler.get_id() == 'clang':
                     self.generate_llvm_ir_compile_rule(compiler)
+                if compiler.get_id() == 'tasking':
+                    self.generate_tasking_mil_compile_rules(compiler)
                 self.generate_compile_rule_for(langname, compiler)
                 self.generate_pch_rule_for(langname, compiler)
                 for mode in compiler.get_modes():
@@ -3013,7 +3053,7 @@ def generate_single_compile(self, target: build.BuildTarget, src,
             raise AssertionError(f'BUG: broken generated source file handling for {src!r}')
         else:
             raise InvalidArguments(f'Invalid source type: {src!r}')
-        obj_basename = self.object_filename_from_source(target, src)
+        obj_basename = self.object_filename_from_source(target, compiler, src)
         rel_obj = os.path.join(self.get_target_private_dir(target), obj_basename)
         dep_file = compiler.depfile_for_object(rel_obj)
 
@@ -3034,8 +3074,17 @@ def generate_single_compile(self, target: build.BuildTarget, src,
             i = os.path.join(self.get_target_private_dir(target), compiler.get_pch_name(pchlist[0]))
             arr.append(i)
             pch_dep = arr
-
-        compiler_name = self.compiler_to_rule_name(compiler)
+        # If TASKING compiler family is used and MIL linking is enabled for the target,
+        # then compilation rule name is a special one to output MIL files
+        # instead of object files for .c files
+        key = OptionKey('b_lto')
+        if compiler.get_id() == 'tasking':
+            if ((isinstance(target, build.StaticLibrary) and target.prelink) or target.get_option(key)) and src.rsplit('.', 1)[1] in compilers.lang_suffixes['c']:
+                compiler_name = self.get_compiler_rule_name('tasking_mil_compile', compiler.for_machine)
+            else:
+                compiler_name = self.compiler_to_rule_name(compiler)
+        else:
+            compiler_name = self.compiler_to_rule_name(compiler)
         extra_deps = []
         if compiler.get_language() == 'fortran':
             # Can't read source file to scan for deps if it's generated later
@@ -3412,13 +3461,19 @@ def generate_prelink(self, target, obj_list):
 
         prelinker = target.get_prelinker()
         cmd = prelinker.exelist[:]
-        cmd += prelinker.get_prelink_args(prelink_name, obj_list)
+        obj_list, args = prelinker.get_prelink_args(prelink_name, obj_list)
+        cmd += args
+        if prelinker.get_prelink_append_compile_args():
+            compile_args = self._generate_single_compile_base_args(target, prelinker)
+            compile_args += self._generate_single_compile_target_args(target, prelinker)
+            compile_args = compile_args.compiler.compiler_args(compile_args)
+            cmd += compile_args.to_native()
 
         cmd = self.replace_paths(target, cmd)
         elem.add_item('COMMAND', cmd)
         elem.add_item('description', f'Prelinking {prelink_name}')
         self.add_build(elem)
-        return [prelink_name]
+        return obj_list
 
     def generate_link(self, target: build.BuildTarget, outname, obj_list, linker: T.Union['Compiler', 'StaticLinker'], extra_args=None, stdlib_args=None):
         extra_args = extra_args if extra_args is not None else []
@@ -3560,6 +3615,9 @@ def generate_link(self, target: build.BuildTarget, outname, obj_list, linker: T.
                             for t in target.link_depends])
         elem = NinjaBuildElement(self.all_outputs, outname, linker_rule, obj_list, implicit_outs=implicit_outs)
         elem.add_dep(dep_targets + custom_target_libraries)
+        if linker.get_id() == 'tasking':
+            if len([x for x in dep_targets + custom_target_libraries if x.endswith('.ma')]) > 0 and not target.get_option(OptionKey('b_lto')):
+                raise MesonException(f'Tried to link the target named \'{target.name}\' with a MIL archive without LTO enabled! This causes the compiler to ignore the archive.')
 
         # Compiler args must be included in TI C28x linker commands.
         if linker.get_id() in {'c2000', 'c6000', 'ti'}:

mesonbuild/backend/vs2010backend.py

@@ -1725,7 +1725,7 @@ def path_normalize_add(path, lis):
                         self.add_preprocessor_defines(lang, inc_cl, file_defines)
                         self.add_include_dirs(lang, inc_cl, file_inc_dirs)
                         ET.SubElement(inc_cl, 'ObjectFileName').text = "$(IntDir)" + \
-                            self.object_filename_from_source(target, s)
+                            self.object_filename_from_source(target, compiler, s)
             for s in gen_src:
                 if path_normalize_add(s, previous_sources):
                     inc_cl = ET.SubElement(inc_src, 'CLCompile', Include=s)
@@ -1739,7 +1739,7 @@ def path_normalize_add(path, lis):
                         self.add_include_dirs(lang, inc_cl, file_inc_dirs)
                         s = File.from_built_file(target.get_subdir(), s)
                         ET.SubElement(inc_cl, 'ObjectFileName').text = "$(IntDir)" + \
-                            self.object_filename_from_source(target, s)
+                            self.object_filename_from_source(target, compiler, s)
             for lang, headers in pch_sources.items():
                 impl = headers[1]
                 if impl and path_normalize_add(impl, previous_sources):

mesonbuild/build.py

@@ -2019,6 +2019,8 @@ def post_init(self) -> None:
             elif ('c' in self.compilers and self.compilers['c'].get_id() in {'mwccarm', 'mwcceppc'} or
                   'cpp' in self.compilers and self.compilers['cpp'].get_id() in {'mwccarm', 'mwcceppc'}):
                 self.suffix = 'nef'
+            elif ('c' in self.compilers and self.compilers['c'].get_id() == 'tasking'):
+                self.suffix = 'elf'
             else:
                 self.suffix = machine.get_exe_suffix()
         self.filename = self.name
@@ -2174,7 +2176,10 @@ def post_init(self) -> None:
                 elif self.rust_crate_type == 'staticlib':
                     self.suffix = 'a'
             else:
-                self.suffix = 'a'
+                if 'c' in self.compilers and self.compilers['c'].get_id() == 'tasking':
+                    self.suffix = 'ma' if self.options.get_value('b_lto') and not self.prelink else 'a'
+                else:
+                    self.suffix = 'a'
         self.filename = self.prefix + self.name + '.' + self.suffix
         self.outputs[0] = self.filename
 

mesonbuild/compilers/c.py

@@ -27,6 +27,7 @@
 from .mixins.emscripten import EmscriptenMixin
 from .mixins.metrowerks import MetrowerksCompiler
 from .mixins.metrowerks import mwccarm_instruction_set_args, mwcceppc_instruction_set_args
+from .mixins.tasking import TaskingCompiler
 from .compilers import (
     gnu_winlibs,
     msvc_winlibs,
@@ -830,3 +831,14 @@ def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]
         if std != 'none':
             args.append('-lang ' + std)
         return args
+
+class TaskingCCompiler(TaskingCompiler, CCompiler):
+    id = 'tasking'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, linker=linker, full_version=full_version)
+        TaskingCompiler.__init__(self)

mesonbuild/compilers/compilers.py

@@ -432,8 +432,8 @@ class CompileResult(HoldableObject):
     output_name: T.Optional[str] = field(default=None, init=False)
     cached: bool = field(default=False, init=False)
 
-
 class Compiler(HoldableObject, metaclass=abc.ABCMeta):
+
     # Libraries to ignore in find_library() since they are provided by the
     # compiler or the C library. Currently only used for MSVC.
     ignore_libs: T.List[str] = []
@@ -1327,9 +1327,13 @@ def get_feature_args(self, kwargs: DFeatures, build_to_src: str) -> T.List[str]:
         # TODO: using a TypeDict here would improve this
         raise EnvironmentException(f'{self.id} does not implement get_feature_args')
 
-    def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.List[str]:
+    def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.Tuple[T.List[str], T.List[str]]:
         raise EnvironmentException(f'{self.id} does not know how to do prelinking.')
 
+    def get_prelink_append_compile_args(self) -> bool:
+        """Controls whether compile args have to be used for prelinking or not"""
+        return False
+
     def rsp_file_syntax(self) -> 'RSPFileSyntax':
         """The format of the RSP file that this compiler supports.
 

mesonbuild/compilers/detect.py

@@ -240,6 +240,8 @@ def detect_static_linker(env: 'Environment', compiler: Compiler) -> StaticLinker
                 return linkers.MetrowerksStaticLinkerARM(linker)
             else:
                 return linkers.MetrowerksStaticLinkerEmbeddedPowerPC(linker)
+        if 'TASKING VX-toolset' in err:
+            return linkers.TaskingStaticLinker(linker)
         if p.returncode == 0:
             return linkers.ArLinker(compiler.for_machine, linker)
         if p.returncode == 1 and err.startswith('usage'): # OSX
@@ -605,6 +607,23 @@ def sanitize(p: T.Optional[str]) -> T.Optional[str]:
             return cls(
                 ccache, compiler, compiler_version, for_machine, is_cross, info,
                 full_version=full_version, linker=linker)
+        if 'TASKING VX-toolset' in err:
+            cls = c.TaskingCCompiler
+            lnk = linkers.TaskingLinker
+
+            tasking_ver_match = re.search(r'v([0-9]+)\.([0-9]+)r([0-9]+) Build ([0-9]+)', err)
+            assert tasking_ver_match is not None, 'for mypy'
+            tasking_version = '.'.join(x for x in tasking_ver_match.groups() if x is not None)
+
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            ld = env.lookup_binary_entry(for_machine, cls.language + '_ld')
+            if ld is None:
+                raise MesonException(f'{cls.language}_ld was not properly defined in your cross file')
+
+            linker = lnk(ld, for_machine, version=tasking_version)
+            return cls(
+                ccache, compiler, tasking_version, for_machine, is_cross, info,
+                full_version=full_version, linker=linker)
 
     _handle_exceptions(popen_exceptions, compilers)
     raise EnvironmentException(f'Unknown compiler {compilers}')