First cut of ARMCC support for MESON.

Change-Id: I15d8258e84d392baaccb8f670e33eefcfe8cd49a

mesonbuild/backend/ninjabackend.py

@@ -1485,7 +1485,7 @@ int dummy;
         # gcc-ar blindly pass the --plugin argument to `ar` and you cannot pass
         # options as arguments while using the @file.rsp syntax.
         # See: https://github.com/mesonbuild/meson/issues/1646
-        if mesonlib.is_windows() and not isinstance(static_linker, ArLinker):
+        if static_linker.can_linker_accept_rsp():
             command_template = ''' command = {executable} @$out.rsp
  rspfile = $out.rsp
  rspfile_content = $LINK_ARGS {output_args} $in
@@ -1540,7 +1540,7 @@ int dummy;
                     except KeyError:
                         pass
                 rule = 'rule %s%s_LINKER\n' % (langname, crstr)
-                if mesonlib.is_windows():
+                if compiler.can_linker_accept_rsp():
                     command_template = ''' command = {executable} @$out.rsp
  rspfile = $out.rsp
  rspfile_content = $ARGS  {output_args} $in $LINK_ARGS {cross_args} $aliasing
@@ -1669,7 +1669,7 @@ rule FORTRAN_DEP_HACK
         if getattr(self, 'created_llvm_ir_rule', False):
             return
         rule = 'rule llvm_ir{}_COMPILER\n'.format('_CROSS' if is_cross else '')
-        if mesonlib.is_windows():
+        if compiler.can_linker_accept_rsp():
             command_template = ' command = {executable} @$out.rsp\n' \
                                ' rspfile = $out.rsp\n' \
                                ' rspfile_content = {cross_args} $ARGS {output_args} {compile_only_args} $in\n'
@@ -1730,7 +1730,7 @@ rule FORTRAN_DEP_HACK
                 d = quote_func(d)
             quoted_depargs.append(d)
         cross_args = self.get_cross_info_lang_args(langname, is_cross)
-        if mesonlib.is_windows():
+        if compiler.can_linker_accept_rsp():
             command_template = ''' command = {executable} @$out.rsp
  rspfile = $out.rsp
  rspfile_content = {cross_args} $ARGS {dep_args} {output_args} {compile_only_args} $in

mesonbuild/build.py

@@ -1178,7 +1178,10 @@ class Executable(BuildTarget):
                     for_cygwin(is_cross, environment) or 'cs' in self.compilers):
                 self.suffix = 'exe'
             else:
-                self.suffix = ''
+                if 'c' in self.compilers and self.compilers['c'].get_id().startswith('arm'):
+                    self.suffix = 'axf'
+                else:
+                    self.suffix = ''
         self.filename = self.name
         if self.suffix:
             self.filename += '.' + self.suffix

mesonbuild/compilers/__init__.py

@@ -41,6 +41,8 @@ __all__ = [
     'sanitizer_compile_args',
     'sort_clike',
 
+    'ARMCompiler',
+    'ARMCCompiler',
     'CCompiler',
     'ClangCCompiler',
     'ClangCompiler',
@@ -115,6 +117,7 @@ from .compilers import (
     IntelCompiler,
 )
 from .c import (
+    ARMCCompiler,
     CCompiler,
     ClangCCompiler,
     GnuCCompiler,

mesonbuild/compilers/c.py

@@ -31,6 +31,7 @@ from .compilers import (
     msvc_winlibs,
     vs32_instruction_set_args,
     vs64_instruction_set_args,
+    ARMCompiler,
     ClangCompiler,
     Compiler,
     CompilerArgs,
@@ -888,6 +889,62 @@ class GnuCCompiler(GnuCompiler, CCompiler):
         return ['-fpch-preprocess', '-include', os.path.basename(header)]
 
 
+class ARMCCompiler(ARMCompiler, CCompiler):
+    def __init__(self, exelist, version, is_cross, exe_wrapper=None, defines=None, **kwargs):
+        CCompiler.__init__(self, exelist, version, is_cross, exe_wrapper, **kwargs)
+        ARMCompiler.__init__(self, defines)
+
+    def sanity_check_impl(self, work_dir, environment, sname, code):
+        mlog.debug('Sanity testing disabled for armcc compiler')
+        return
+
+    def get_options(self):
+        opts = {'c_std': coredata.UserComboOption('c_std', 'C language standard to use',
+                                                  ['none', 'c89', 'c99', 'c11'],
+                                                  'none')}
+        return opts
+
+    def get_warn_args(self, level):
+        # ARMCC doesn't have warning levels
+        return []
+
+    def get_coverage_args(self):
+        return []
+
+    def get_coverage_link_args(self):
+        return []
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self):
+        return []
+
+    def get_option_compile_args(self, options):
+        return []
+
+    def get_linker_exelist(self):
+        args = ['armlink']
+        return args
+
+    # Override CCompiler.get_dependency_gen_args
+    def get_dependency_gen_args(self, outtarget, outfile):
+        return []
+
+    # Override CCompiler.get_std_shared_lib_link_args
+    def get_std_shared_lib_link_args(self):
+        return []
+
+    def get_pch_use_args(self, pch_dir, header):
+        # FIXME: Add required arguments
+        # NOTE from armcc user guide:
+        # "Support for Precompiled Header (PCH) files is deprecated from ARM Compiler 5.05
+        # onwards on all platforms. Note that ARM Compiler on Windows 8 never supported
+        # PCH files."
+        return []
+
+    def get_compile_only_args(self):
+        return ['-c']
+
+
 class IntelCCompiler(IntelCompiler, CCompiler):
     def __init__(self, exelist, version, icc_type, is_cross, exe_wrapper=None, **kwargs):
         CCompiler.__init__(self, exelist, version, is_cross, exe_wrapper, **kwargs)

mesonbuild/compilers/compilers.py

@@ -112,6 +112,12 @@ gnulike_buildtype_args = {'plain': [],
                           'debugoptimized': ['-O2', '-g'],
                           'release': ['-O3'],
                           'minsize': ['-Os', '-g']}
+arm_buildtype_args = {'plain': [],
+                      'debug': ['-O0', '-g'],
+                      'debugoptimized': ['-O2', '-g'],
+                      'release': ['-O2'],
+                      'minsize': ['-Os', '-g'],
+                     }
 
 msvc_buildtype_args = {'plain': [],
                        'debug': ["/MDd", "/ZI", "/Ob0", "/Od", "/RTC1"],
@@ -133,6 +139,12 @@ gnulike_buildtype_linker_args = {'plain': [],
                                  'release': ['-Wl,-O1'],
                                  'minsize': [],
                                  }
+arm_buildtype_linker_args = {'plain': [],
+                             'debug': [],
+                             'debugoptimized': [],
+                             'release': [],
+                             'minsize': [],
+                            }
 
 msvc_buildtype_linker_args = {'plain': [],
                               'debug': [],
@@ -657,6 +669,12 @@ class Compiler:
     def get_always_args(self):
         return []
 
+    def can_linker_accept_rsp(self):
+        """
+        Determines whether the linker can accept arguments using the @rsp syntax.
+        """
+        return mesonlib.is_windows()
+
     def get_linker_always_args(self):
         return []
 
@@ -1075,6 +1093,39 @@ class GnuCompiler:
     def get_default_include_dirs(self):
         return gnulike_default_include_dirs(self.exelist, self.language)
 
+class ARMCompiler:
+    # Functionality that is common to all ARM family compilers.
+    def __init__(self, defines):
+        self.id = 'arm'
+        self.defines = defines or {}
+        self.base_options = ['b_pch', 'b_lto', 'b_pgo', 'b_sanitize', 'b_coverage',
+                             'b_colorout', 'b_ndebug', 'b_staticpic']
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def can_linker_accept_rsp(self):
+        return False
+
+    def get_pic_args(self):
+        # FIXME: Add /ropi, /rwpi, /fpic etc. qualifiers to --apcs
+        return []
+
+    def get_buildtype_args(self, buildtype):
+        return arm_buildtype_args[buildtype]
+
+    def get_buildtype_linker_args(self, buildtype):
+        return arm_buildtype_linker_args[buildtype]
+
+    def get_pch_suffix(self):
+        # NOTE from armcc user guide:
+        # "Support for Precompiled Header (PCH) files is deprecated from ARM Compiler 5.05
+        # onwards on all platforms. Note that ARM Compiler on Windows 8 never supported
+        # PCH files."
+        return 'pch'
+
+    def split_shlib_to_parts(self, fname):
+        return os.path.split(fname)[0], fname
+
 
 class ClangCompiler:
     def __init__(self, clang_type):

mesonbuild/environment.py

@@ -38,6 +38,7 @@ from .compilers import (
     is_source,
 )
 from .compilers import (
+    ARMCCompiler,
     ClangCCompiler,
     ClangCPPCompiler,
     ClangObjCCompiler,
@@ -492,7 +493,10 @@ class Environment:
                         continue
                 arg = '/?'
             else:
-                arg = '--version'
+                if re.search('.*arm.*', compiler[0]):
+                    arg = '--vsn'
+                else:
+                    arg = '--version'
             try:
                 p, out, err = Popen_safe(compiler + [arg])
             except OSError as e:
@@ -537,6 +541,8 @@ class Environment:
                 inteltype = ICC_STANDARD
                 cls = IntelCCompiler if lang == 'c' else IntelCPPCompiler
                 return cls(ccache + compiler, version, inteltype, is_cross, exe_wrap, full_version=full_version)
+            if 'ARM' in out:
+                return ARMCCompiler(ccache + compiler, version, is_cross, exe_wrap, full_version=full_version)
         self._handle_exceptions(popen_exceptions, compilers)
 
     def detect_c_compiler(self, want_cross):
@@ -791,7 +797,10 @@ class Environment:
             if 'lib' in linker or 'lib.exe' in linker:
                 arg = '/?'
             else:
-                arg = '--version'
+                if re.search('.*arm.*', linker[0]):
+                    arg = '--vsn'
+                else:
+                    arg = '--version'
             try:
                 p, out, err = Popen_safe(linker + [arg])
             except OSError as e:

mesonbuild/linkers.py

@@ -13,9 +13,14 @@
 # limitations under the License.
 
 from .mesonlib import Popen_safe
+from . import mesonlib
 
 class StaticLinker:
-    pass
+    def can_linker_accept_rsp(self):
+        """
+        Determines whether the linker can accept arguments using the @rsp syntax.
+        """
+        return mesonlib.is_windows()
 
 
 class VisualStudioLinker(StaticLinker):
@@ -75,6 +80,12 @@ class ArLinker(StaticLinker):
             self.std_args = ['csrD']
         else:
             self.std_args = ['csr']
+        # For 'armar' the options should be prefixed with '-'.
+        if 'armar' in stdo:
+            self.std_args = ['-csr']
+
+    def can_linker_accept_rsp(self):
+        return False
 
     def build_rpath_args(self, build_dir, from_dir, rpath_paths, build_rpath, install_rpath):
         return []

mesonbuild/wrap/wrap.py

@@ -203,15 +203,17 @@ class Resolver:
                 subprocess.call(['git', 'pull'], cwd=checkoutdir)
             else:
                 if subprocess.call(['git', 'checkout', revno], cwd=checkoutdir) != 0:
-                    subprocess.check_call(['git', 'fetch'], cwd=checkoutdir)
+                    subprocess.check_call(['git', 'fetch', p.get('url'), revno], cwd=checkoutdir)
                     subprocess.check_call(['git', 'checkout', revno],
                                           cwd=checkoutdir)
         else:
             subprocess.check_call(['git', 'clone', p.get('url'),
                                    p.get('directory')], cwd=self.subdir_root)
             if revno.lower() != 'head':
-                subprocess.check_call(['git', 'checkout', revno],
-                                      cwd=checkoutdir)
+                if subprocess.call(['git', 'checkout', revno], cwd=checkoutdir) != 0:
+                    subprocess.check_call(['git', 'fetch', p.get('url'), revno], cwd=checkoutdir)
+                    subprocess.check_call(['git', 'checkout', revno],
+                                          cwd=checkoutdir)
             push_url = p.values.get('push-url')
             if push_url:
                 subprocess.check_call(['git', 'remote', 'set-url',