1 files changed, 190 insertions, 0 deletions
diff --git a/meson/mesonbuild/compilers/mixins/arm.py b/meson/mesonbuild/compilers/mixins/arm.py
new file mode 100644
index 000000000..4e1898ae7
--- /dev/null
+++ b/meson/mesonbuild/compilers/mixins/arm.py
@@ -0,0 +1,190 @@
+# Copyright 2012-2020 Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Representations specific to the arm family of compilers."""
+
+import os
+import typing as T
+
+from ... import mesonlib
+from ...linkers import ArmClangDynamicLinker
+from ...mesonlib import OptionKey
+from ..compilers import clike_debug_args
+from .clang import clang_color_args
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+arm_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+arm_optimization_args = {
+    '0': ['-O0'],
+    'g': ['-g'],
+    '1': ['-O1'],
+    '2': [], # Compiler defaults to -O2
+    '3': ['-O3', '-Otime'],
+    's': ['-O3'], # Compiler defaults to -Ospace
+}  # type: T.Dict[str, T.List[str]]
+
+armclang_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+armclang_optimization_args = {
+    '0': [], # Compiler defaults to -O0
+    'g': ['-g'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Oz']
+}  # type: T.Dict[str, T.List[str]]
+
+
+class ArmCompiler(Compiler):
+
+    """Functionality that is common to all ARM family compilers."""
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise mesonlib.EnvironmentException('armcc supports only cross-compilation.')
+        self.id = 'arm'
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def get_pic_args(self) -> T.List[str]:
+        # FIXME: Add /ropi, /rwpi, /fpic etc. qualifiers to --apcs
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return arm_buildtype_args[buildtype]
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['--depend_target', outtarget, '--depend', outfile, '--depend_single_line']
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # 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_pch_suffix(self) -> str:
+        # 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 thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return arm_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+
+class ArmclangCompiler(Compiler):
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise mesonlib.EnvironmentException('armclang supports only cross-compilation.')
+        # Check whether 'armlink' is available in path
+        if not isinstance(self.linker, ArmClangDynamicLinker):
+            raise mesonlib.EnvironmentException(f'Unsupported Linker {self.linker.exelist}, must be armlink')
+        if not mesonlib.version_compare(self.version, '==' + self.linker.version):
+            raise mesonlib.EnvironmentException('armlink version does not match with compiler version')
+        self.id = 'armclang'
+        self.base_options = {
+            OptionKey(o) for o in
+            ['b_pch', 'b_lto', 'b_pgo', 'b_sanitize', 'b_coverage',
+             'b_ndebug', 'b_staticpic', 'b_colorout']}
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def get_pic_args(self) -> T.List[str]:
+        # PIC support is not enabled by default for ARM,
+        # if users want to use it, they need to add the required arguments explicitly
+        return []
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        return clang_color_args[colortype][:]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return armclang_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'gch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # Workaround for Clang bug http://llvm.org/bugs/show_bug.cgi?id=15136
+        # This flag is internal to Clang (or at least not documented on the man page)
+        # so it might change semantics at any time.
+        return ['-include-pch', os.path.join(pch_dir, self.get_pch_name(header))]
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-MD', '-MT', outtarget, '-MF', outfile]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return armclang_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list