Diff: tools/toolchains/gcc.py

Revision:

0:f782d9c66c49

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/toolchains/gcc.py	Fri Feb 02 05:42:23 2018 +0000
@@ -0,0 +1,301 @@
+"""
+mbed SDK
+Copyright (c) 2011-2013 ARM Limited
+
+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.
+"""
+import re
+from os.path import join, basename, splitext, dirname, exists
+from distutils.spawn import find_executable
+
+from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS
+from tools.hooks import hook_tool
+
+class GCC(mbedToolchain):
+    LINKER_EXT = '.ld'
+    LIBRARY_EXT = '.a'
+
+    STD_LIB_NAME = "lib%s.a"
+    DIAGNOSTIC_PATTERN = re.compile('((?P<file>[^:]+):(?P<line>\d+):)(\d+:)? (?P<severity>warning|[eE]rror|fatal error): (?P<message>.+)')
+    INDEX_PATTERN  = re.compile('(?P<col>\s*)\^')
+
+    def __init__(self, target,  notify=None, macros=None,
+                 silent=False, extra_verbose=False, build_profile=None,
+                 build_dir=None):
+        mbedToolchain.__init__(self, target, notify, macros, silent,
+                               extra_verbose=extra_verbose,
+                               build_profile=build_profile, build_dir=build_dir)
+
+        tool_path=TOOLCHAIN_PATHS['GCC_ARM']
+        # Add flags for current size setting
+        default_lib = "std"
+        if hasattr(target, "default_lib"):
+            default_lib = target.default_lib
+        elif hasattr(target, "default_build"): # Legacy
+            default_lib = target.default_build
+
+        if default_lib == "small":
+            self.flags["common"].append("-DMBED_RTOS_SINGLE_THREAD")
+            self.flags["ld"].append("--specs=nano.specs")
+
+        if target.core == "Cortex-M0+":
+            cpu = "cortex-m0plus"
+        elif target.core == "Cortex-M4F":
+            cpu = "cortex-m4"
+        elif target.core == "Cortex-M7F":
+            cpu = "cortex-m7"
+        elif target.core == "Cortex-M7FD":
+            cpu = "cortex-m7"
+        else:
+            cpu = target.core.lower()
+
+        self.cpu = ["-mcpu=%s" % cpu]
+        if target.core.startswith("Cortex-M"):
+            self.cpu.append("-mthumb")
+
+        # FPU handling, M7 possibly to have double FPU
+        if target.core == "Cortex-M4F":
+            self.cpu.append("-mfpu=fpv4-sp-d16")
+            self.cpu.append("-mfloat-abi=softfp")
+        elif target.core == "Cortex-M7F":
+            self.cpu.append("-mfpu=fpv5-sp-d16")
+            self.cpu.append("-mfloat-abi=softfp")
+        elif target.core == "Cortex-M7FD":
+            self.cpu.append("-mfpu=fpv5-d16")
+            self.cpu.append("-mfloat-abi=softfp")
+
+        if target.core == "Cortex-A9":
+            self.cpu.append("-mthumb-interwork")
+            self.cpu.append("-marm")
+            self.cpu.append("-march=armv7-a")
+            self.cpu.append("-mfpu=vfpv3")
+            self.cpu.append("-mfloat-abi=hard")
+            self.cpu.append("-mno-unaligned-access")
+
+        self.flags["common"] += self.cpu
+
+        main_cc = join(tool_path, "arm-none-eabi-gcc")
+        main_cppc = join(tool_path, "arm-none-eabi-g++")
+        self.asm = [main_cc] + self.flags['asm'] + self.flags["common"]
+        self.cc  = [main_cc]
+        self.cppc =[main_cppc]
+        self.cc += self.flags['c'] + self.flags['common']
+        self.cppc += self.flags['cxx'] + self.flags['common']
+
+        self.flags['ld'] += self.cpu
+        self.ld = [join(tool_path, "arm-none-eabi-gcc")] + self.flags['ld']
+        self.sys_libs = ["stdc++", "supc++", "m", "c", "gcc", "nosys"]
+        self.preproc = [join(tool_path, "arm-none-eabi-cpp"), "-E", "-P"]
+
+        self.ar = join(tool_path, "arm-none-eabi-ar")
+        self.elf2bin = join(tool_path, "arm-none-eabi-objcopy")
+
+    def parse_dependencies(self, dep_path):
+        dependencies = []
+        buff = open(dep_path).readlines()
+        buff[0] = re.sub('^(.*?)\: ', '', buff[0])
+        for line in buff:
+            file = line.replace('\\\n', '').strip()
+            if file:
+                # GCC might list more than one dependency on a single line, in this case
+                # the dependencies are separated by a space. However, a space might also
+                # indicate an actual space character in a dependency path, but in this case
+                # the space character is prefixed by a backslash.
+                # Temporary replace all '\ ' with a special char that is not used (\a in this
+                # case) to keep them from being interpreted by 'split' (they will be converted
+                # back later to a space char)
+                file = file.replace('\\ ', '\a')
+                if file.find(" ") == -1:
+                    dependencies.append((self.CHROOT if self.CHROOT else '') + file.replace('\a', ' '))
+                else:
+                    dependencies = dependencies + [(self.CHROOT if self.CHROOT else '') + f.replace('\a', ' ') for f in file.split(" ")]
+        return dependencies
+
+    def is_not_supported_error(self, output):
+        return "error: #error [NOT_SUPPORTED]" in output
+
+    def parse_output(self, output):
+        # The warning/error notification is multiline
+        msg = None
+        for line in output.splitlines():
+            match = self.DIAGNOSTIC_PATTERN.search(line)
+            if match is not None:
+                if msg is not None:
+                    self.cc_info(msg)
+                    msg = None
+                msg = {
+                    'severity': match.group('severity').lower(),
+                    'file': match.group('file'),
+                    'line': match.group('line'),
+                    'col': 0,
+                    'message': match.group('message'),
+                    'text': '',
+                    'target_name': self.target.name,
+                    'toolchain_name': self.name
+                }
+            elif msg is not None:
+                # Determine the warning/error column by calculating the ^ position
+                match = self.INDEX_PATTERN.match(line)
+                if match is not None:
+                    msg['col'] = len(match.group('col'))
+                    self.cc_info(msg)
+                    msg = None
+                else:
+                    msg['text'] += line+"\n"
+
+        if msg is not None:
+            self.cc_info(msg)
+
+    def get_dep_option(self, object):
+        base, _ = splitext(object)
+        dep_path = base + '.d'
+        return ["-MD", "-MF", dep_path]
+
+    def get_config_option(self, config_header):
+        return ['-include', config_header]
+
+    def get_compile_options(self, defines, includes, for_asm=False):
+        opts = ['-D%s' % d for d in defines]
+        if self.RESPONSE_FILES:
+            opts += ['@%s' % self.get_inc_file(includes)]
+        else:
+            opts += ["-I%s" % i for i in includes]
+
+        if not for_asm:
+            config_header = self.get_config_header()
+            if config_header is not None:
+                opts = opts + self.get_config_option(config_header)
+        return opts
+
+    @hook_tool
+    def assemble(self, source, object, includes):
+        # Build assemble command
+        cmd = self.asm + self.get_compile_options(self.get_symbols(True), includes) + ["-o", object, source]
+
+        # Call cmdline hook
+        cmd = self.hook.get_cmdline_assembler(cmd)
+
+        # Return command array, don't execute
+        return [cmd]
+
+    @hook_tool
+    def compile(self, cc, source, object, includes):
+        # Build compile command
+        cmd = cc + self.get_compile_options(self.get_symbols(), includes)
+
+        cmd.extend(self.get_dep_option(object))
+
+        cmd.extend(["-o", object, source])
+
+        # Call cmdline hook
+        cmd = self.hook.get_cmdline_compiler(cmd)
+
+        return [cmd]
+
+    def compile_c(self, source, object, includes):
+        return self.compile(self.cc, source, object, includes)
+
+    def compile_cpp(self, source, object, includes):
+        return self.compile(self.cppc, source, object, includes)
+
+    @hook_tool
+    def link(self, output, objects, libraries, lib_dirs, mem_map):
+        libs = []
+        for l in libraries:
+            name, _ = splitext(basename(l))
+            libs.append("-l%s" % name[3:])
+        libs.extend(["-l%s" % l for l in self.sys_libs])
+
+        # Preprocess
+        if mem_map:
+            preproc_output = join(dirname(output), ".link_script.ld")
+            cmd = (self.preproc + [mem_map] + self.ld[1:] +
+                   [ "-o", preproc_output])
+            self.cc_verbose("Preproc: %s" % ' '.join(cmd))
+            self.default_cmd(cmd)
+            mem_map = preproc_output
+
+        # Build linker command
+        map_file = splitext(output)[0] + ".map"
+        cmd = self.ld + ["-o", output, "-Wl,-Map=%s" % map_file] + objects + ["-Wl,--start-group"] + libs + ["-Wl,--end-group"]
+        if mem_map:
+            cmd.extend(['-T', mem_map])
+
+        for L in lib_dirs:
+            cmd.extend(['-L', L])
+        cmd.extend(libs)
+
+        # Call cmdline hook
+        cmd = self.hook.get_cmdline_linker(cmd)
+
+        if self.RESPONSE_FILES:
+            # Split link command to linker executable + response file
+            cmd_linker = cmd[0]
+            link_files = self.get_link_file(cmd[1:])
+            cmd = [cmd_linker, "@%s" % link_files]
+
+        # Exec command
+        self.cc_verbose("Link: %s" % ' '.join(cmd))
+        self.default_cmd(cmd)
+
+    @hook_tool
+    def archive(self, objects, lib_path):
+        if self.RESPONSE_FILES:
+            param = ["@%s" % self.get_arch_file(objects)]
+        else:
+            param = objects
+
+        # Exec command
+        self.default_cmd([self.ar, 'rcs', lib_path] + param)
+
+    @hook_tool
+    def binary(self, resources, elf, bin):
+        # Build binary command
+        cmd = [self.elf2bin, "-O", "binary", elf, bin]
+
+        # Call cmdline hook
+        cmd = self.hook.get_cmdline_binary(cmd)
+
+        # Exec command
+        self.cc_verbose("FromELF: %s" % ' '.join(cmd))
+        self.default_cmd(cmd)
+
+    @staticmethod
+    def name_mangle(name):
+        return "_Z%i%sv" % (len(name), name)
+
+    @staticmethod
+    def make_ld_define(name, value):
+        return "-D%s=0x%x" % (name, value)
+
+    @staticmethod
+    def redirect_symbol(source, sync, build_dir):
+        return "-Wl,--defsym=%s=%s" % (source, sync)
+
+    @staticmethod
+    def check_executable():
+        """Returns True if the executable (arm-none-eabi-gcc) location
+        specified by the user exists OR the executable can be found on the PATH.
+        Returns False otherwise."""
+        if not TOOLCHAIN_PATHS['GCC_ARM'] or not exists(TOOLCHAIN_PATHS['GCC_ARM']):
+            if find_executable('arm-none-eabi-gcc'):
+                TOOLCHAIN_PATHS['GCC_ARM'] = ''
+                return True
+            else:
+                return False
+        else:
+            exec_name = join(TOOLCHAIN_PATHS['GCC_ARM'], 'arm-none-eabi-gcc')
+            return exists(exec_name) or exists(exec_name + '.exe')
+
+class GCC_ARM(GCC):
+    pass