Import Mbed OS hard-float snapshot
This commit is contained in:
Beslan
424
tools/toolchains/gcc.py
Normal file
424
tools/toolchains/gcc.py
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@@ -0,0 +1,424 @@
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"""
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mbed SDK
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Copyright (c) 2011-2020 ARM Limited
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SPDX-License-Identifier: Apache-2.0
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import re
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import fnmatch
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from os.path import join, basename, splitext, dirname, exists
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from os import getcwd, getenv
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from distutils.spawn import find_executable
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from distutils.version import LooseVersion
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from tools.toolchains.mbed_toolchain import (
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mbedToolchain, TOOLCHAIN_PATHS, should_replace_small_c_lib
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)
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from tools.utils import run_cmd
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class GCC(mbedToolchain):
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OFFICIALLY_SUPPORTED = True
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LINKER_EXT = '.ld'
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LIBRARY_EXT = '.a'
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STD_LIB_NAME = "lib%s.a"
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DIAGNOSTIC_PATTERN = re.compile('((?P<file>[^:]+):(?P<line>\d+):)(?P<col>\d+):? (?P<severity>warning|[eE]rror|fatal error): (?P<message>.+)')
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GCC_RANGE = (LooseVersion("9.0.0"), LooseVersion("10.0.0"))
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GCC_VERSION_RE = re.compile(b"\d+\.\d+\.\d+")
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DWARF_PRODUCER_RE = re.compile(r'(DW_AT_producer)(.*:\s*)(?P<producer>.*)')
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def __init__(self, target, notify=None, macros=None, build_profile=None,
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build_dir=None, coverage_patterns=None):
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mbedToolchain.__init__(
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self,
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target,
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notify,
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macros,
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build_profile=build_profile,
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build_dir=build_dir,
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coverage_patterns=coverage_patterns
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)
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tool_path = TOOLCHAIN_PATHS['GCC_ARM']
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# Add flags for current size setting
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c_lib = "std"
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if hasattr(target, "c_lib"):
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toolchain = "gcc_arm"
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if should_replace_small_c_lib(target, toolchain):
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target.c_lib = "std"
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self.check_c_lib_supported(target, toolchain)
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c_lib = target.c_lib
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elif hasattr(target, "default_build"):
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c_lib = target.default_build
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if c_lib == "small":
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common_flags = ["-DMBED_RTOS_SINGLE_THREAD", "-D__NEWLIB_NANO"]
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self.flags["common"].extend(common_flags)
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self.flags["ld"].append("--specs=nano.specs")
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self.check_and_add_minimal_printf(target)
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if getattr(target, "printf_lib", "std") == "minimal-printf":
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minimal_printf_wraps = [
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"-Wl,--wrap,printf",
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"-Wl,--wrap,sprintf",
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"-Wl,--wrap,snprintf",
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"-Wl,--wrap,vprintf",
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"-Wl,--wrap,vsprintf",
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"-Wl,--wrap,vsnprintf",
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"-Wl,--wrap,fprintf",
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"-Wl,--wrap,vfprintf",
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]
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# Add the linker option to wrap the f\v\s\printf functions if not
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# already added.
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for minimal_printf_wrap in minimal_printf_wraps:
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if minimal_printf_wrap not in self.flags["ld"]:
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self.flags["ld"].append(minimal_printf_wrap)
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self.cpu = []
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# Enable DOMAIN_NS macro for TF-M NS targets
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if target.is_TFM_target:
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# Add linking time preprocessor macro DOMAIN_NS
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# (DOMAIN_NS is passed to compiler and assembler via CORTEX_SYMBOLS
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# in mbedToolchain.get_symbols)
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self.flags["ld"].append("-DDOMAIN_NS=1")
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core = target.core_without_NS
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cpu = {
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"Cortex-M0+": "cortex-m0plus",
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"Cortex-M4F": "cortex-m4",
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"Cortex-M7F": "cortex-m7",
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"Cortex-M7FD": "cortex-m7",
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"Cortex-M33": "cortex-m33+nodsp",
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"Cortex-M33E": "cortex-m33",
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"Cortex-M33F": "cortex-m33+nodsp",
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"Cortex-M33FE": "cortex-m33"}.get(core, core)
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if cpu == "cortex-m33+nodsp":
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self.cpu.append("-march=armv8-m.main")
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elif cpu == "cortex-m33":
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self.cpu.append("-march=armv8-m.main+dsp")
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else:
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self.cpu.append("-mcpu={}".format(cpu.lower()))
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if target.core.startswith("Cortex-M"):
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self.cpu.append("-mthumb")
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# FPU handling, M7 possibly to have double FPU
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if core == "Cortex-M4F":
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self.cpu.append("-mfpu=fpv4-sp-d16")
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self.cpu.append("-mfloat-abi=hard")
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elif core == "Cortex-M7F" or core.startswith("Cortex-M33F"):
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self.cpu.append("-mfpu=fpv5-sp-d16")
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self.cpu.append("-mfloat-abi=hard")
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elif core == "Cortex-M7FD":
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self.cpu.append("-mfpu=fpv5-d16")
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self.cpu.append("-mfloat-abi=hard")
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if target.core == "Cortex-A9":
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self.cpu.append("-mthumb-interwork")
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self.cpu.append("-marm")
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self.cpu.append("-march=armv7-a")
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self.cpu.append("-mfpu=vfpv3")
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self.cpu.append("-mfloat-abi=hard")
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self.cpu.append("-mno-unaligned-access")
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self.flags["common"] += self.cpu
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self.coverage_supported = True
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main_cc = join(tool_path, "arm-none-eabi-gcc")
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main_cppc = join(tool_path, "arm-none-eabi-g++")
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self.asm = [main_cc] + self.flags['asm'] + self.flags["common"]
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self.cc = [main_cc]
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self.cppc = [main_cppc]
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self.cc += self.flags['c'] + self.flags['common']
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self.cppc += self.flags['cxx'] + self.flags['common']
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self.flags['ld'] += self.cpu
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self.ld = [join(tool_path, "arm-none-eabi-gcc")]
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self.ld += self.flags['ld'] + self.flags['common']
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self.sys_libs = ["stdc++", "supc++", "m", "c", "gcc", "nosys"]
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self.preproc = [join(tool_path, "arm-none-eabi-cpp"), "-E", "-P"]
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self.ar = join(tool_path, "arm-none-eabi-ar")
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self.elf2bin = join(tool_path, "arm-none-eabi-objcopy")
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self.objdump = join(tool_path, "arm-none-eabi-objdump")
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self.use_distcc = (bool(getenv("DISTCC_POTENTIAL_HOSTS", False))
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and not getenv("MBED_DISABLE_DISTCC", False))
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# create copies of gcc/ld options as coverage build options, and injects extra coverage options
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self.coverage_cc = self.cc + ["--coverage", "-DENABLE_LIBGCOV_PORT"]
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self.coverage_cppc = self.cppc + ["--coverage", "-DENABLE_LIBGCOV_PORT"]
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self.coverage_ld = self.ld + ['--coverage', '-Wl,--wrap,GREENTEA_SETUP', '-Wl,--wrap,_Z25GREENTEA_TESTSUITE_RESULTi']
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# for gcc coverage options remove MBED_DEBUG macro (this is required by code coverage function)
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for flag in ["-DMBED_DEBUG"]:
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if flag in self.coverage_cc:
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self.coverage_cc.remove(flag)
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if flag in self.coverage_cppc:
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self.coverage_cppc.remove(flag)
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# for lg coverage options remove exit wrapper (this is required by code coverage function)
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for flag in ['-Wl,--wrap,exit', '-Wl,--wrap,atexit']:
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if flag in self.coverage_ld:
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self.coverage_ld.remove(flag)
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def version_check(self):
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stdout, _, retcode = run_cmd([self.cc[0], "--version"], redirect=True)
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msg = None
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match = self.GCC_VERSION_RE.search(stdout.encode("utf-8"))
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if match:
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found_version = LooseVersion(match.group(0).decode('utf-8'))
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else:
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found_version = None
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min_ver, max_ver = self.GCC_RANGE
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if found_version and (found_version < min_ver
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or found_version >= max_ver):
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msg = ("Compiler version mismatch: Have {}; "
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"expected version >= {} and < {}"
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.format(found_version, min_ver, max_ver))
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elif not match:
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msg = ("Compiler version mismatch: Could not detect version; "
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"expected version >= {} and < {}"
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.format(min_ver, max_ver))
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if msg:
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self.notify.cc_info({
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"message": msg,
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"file": "",
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"line": "",
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"col": "",
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"severity": "Warning",
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})
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def is_not_supported_error(self, output):
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return "error: #error [NOT_SUPPORTED]" in output
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def parse_output(self, output):
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# The warning/error notification is multiline
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msg = None
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for line in output.splitlines():
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match = self.DIAGNOSTIC_PATTERN.search(line)
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if match is not None:
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if msg is not None:
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self.notify.cc_info(msg)
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msg = None
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msg = {
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'severity': match.group('severity').lower(),
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'file': match.group('file'),
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'line': match.group('line'),
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'col': match.group('col'),
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'message': match.group('message'),
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'text': '',
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'target_name': self.target.name,
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'toolchain_name': self.name
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}
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if msg is not None:
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self.notify.cc_info(msg)
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def get_dep_option(self, object):
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base, _ = splitext(object)
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dep_path = base + '.d'
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return ["-MD", "-MF", dep_path]
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def get_config_option(self, config_header):
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return ['-include', config_header]
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def get_compile_options(self, defines, includes, for_asm=False):
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opts = ['-D%s' % d for d in defines]
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if self.RESPONSE_FILES:
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opts += ['@%s' % self.get_inc_file(includes)]
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else:
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opts += ["-I%s" % i for i in includes]
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config_header = self.get_config_header()
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if config_header is not None:
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opts = opts + self.get_config_option(config_header)
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return opts
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def match_coverage_patterns(self, source):
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"""Check whether the give source file match with coverage patterns, if so return True. """
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for pattern in self.coverage_patterns:
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if fnmatch.fnmatch(source, pattern):
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return True
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return False
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def assemble(self, source, object, includes):
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# Build assemble command
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cmd = self.asm + self.get_compile_options(
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self.get_symbols(True), includes
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) + ["-o", object, source]
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# Return command array, don't execute
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return [cmd]
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def compile(self, cc, source, object, includes):
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# Build compile command
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cmd = cc + self.get_compile_options(self.get_symbols(), includes)
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cmd.extend(self.get_dep_option(object))
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cmd.extend(["-o", object, source])
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if self.use_distcc:
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cmd = ["distcc"] + cmd
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return [cmd]
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def compile_c(self, source, object, includes):
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if self.coverage_patterns and self.match_coverage_patterns(source):
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return self.compile(self.coverage_cc, source, object, includes)
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return self.compile(self.cc, source, object, includes)
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def compile_cpp(self, source, object, includes):
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if self.coverage_patterns and self.match_coverage_patterns(source):
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return self.compile(self.coverage_cppc, source, object, includes)
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return self.compile(self.cppc, source, object, includes)
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def link(self, output, objects, libraries, lib_dirs, mem_map):
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libs = []
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for l in libraries:
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name, _ = splitext(basename(l))
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libs.append("-l%s" % name[3:])
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libs.extend(["-l%s" % l for l in self.sys_libs])
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# Preprocess
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if mem_map:
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preproc_output = join(dirname(output), ".link_script.ld")
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cmd = (
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self.preproc + [mem_map] + self.ld[1:] + ["-o", preproc_output] +
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self.get_compile_options(self.get_symbols(), [])
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)
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self.notify.cc_verbose("Preproc: %s" % ' '.join(cmd))
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self.default_cmd(cmd)
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mem_map = preproc_output
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# NOTE: GCC_ARM_LTO_WORKAROUND
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# This is a workaround for the GCC not using the strong symbols from
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# C files to override the weak symbols from ASM files. This GCC bug is only
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# present when building with the link-time optimizer (LTO) enabled. For
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# more details please see:
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83967
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#
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# This can be fixed by changing the order of object files in the linker
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# command; objects providing the weak symbols and compiled from assembly
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# must be listed before the objects providing the strong symbols.
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# To keep things simple, ALL object files from ASM are listed before
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# other object files.
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asm_objects = []
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if '-flto' in self.ld:
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asm_objects = self.get_asm_objects(objects)
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reorg_objects = (
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[o for o in objects if o in asm_objects] +
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[o for o in objects if o not in asm_objects]
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)
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# Build linker command
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map_file = splitext(output)[0] + ".map"
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cmd = (
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(self.coverage_ld if self.coverage_patterns else self.ld) +
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["-o", output, "-Wl,-Map=%s" % map_file] +
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reorg_objects +
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["-Wl,--start-group"] +
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libs +
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["-Wl,--end-group"]
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)
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if mem_map:
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cmd.extend(['-T', mem_map])
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for L in lib_dirs:
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cmd.extend(['-L', L])
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cmd.extend(libs)
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if self.RESPONSE_FILES:
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# Split link command to linker executable + response file
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cmd_linker = cmd[0]
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link_files = self.get_link_file(cmd[1:])
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cmd = [cmd_linker, "@%s" % link_files]
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# Exec command
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self.notify.cc_verbose("Link: %s" % ' '.join(cmd))
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self.default_cmd(cmd)
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def archive(self, objects, lib_path):
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if self.RESPONSE_FILES:
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param = ["@%s" % self.get_arch_file(objects)]
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else:
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param = objects
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# Exec command
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self.default_cmd([self.ar, 'rcs', lib_path] + param)
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def binary(self, resources, elf, bin):
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# Build binary command
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_, fmt = splitext(bin)
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bin_arg = {'.bin': 'binary', '.hex': 'ihex'}[fmt]
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cmd = [self.elf2bin, "-O", bin_arg, elf, bin]
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# Exec command
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self.notify.cc_verbose("FromELF: %s" % ' '.join(cmd))
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self.default_cmd(cmd)
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@staticmethod
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def name_mangle(name):
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return "_Z%i%sv" % (len(name), name)
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@staticmethod
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def make_ld_define(name, value):
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return "-D%s=%s" % (name, value)
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@staticmethod
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def redirect_symbol(source, sync, build_dir):
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return "-Wl,--defsym=%s=%s" % (source, sync)
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@staticmethod
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def check_executable():
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"""Returns True if the executable (arm-none-eabi-gcc) location
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specified by the user exists OR the executable can be found on the
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PATH. Returns False otherwise."""
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if (
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not TOOLCHAIN_PATHS['GCC_ARM'] or
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not exists(TOOLCHAIN_PATHS['GCC_ARM'])
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):
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if find_executable('arm-none-eabi-gcc'):
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TOOLCHAIN_PATHS['GCC_ARM'] = ''
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return True
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else:
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return False
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else:
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exec_name = join(TOOLCHAIN_PATHS['GCC_ARM'], 'arm-none-eabi-gcc')
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return exists(exec_name) or exists(exec_name + '.exe')
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def check_if_obj_from_asm(self, obj_file):
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"""Check if obj_file was build by the GNU Assembler."""
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dw_producer = ''
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cmd = [self.objdump, '--dwarf=info', obj_file]
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stdout, stderr, rc = run_cmd(cmd, work_dir=getcwd(), chroot=self.CHROOT)
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if rc != 0:
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return False
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match = self.DWARF_PRODUCER_RE.search(stdout)
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if match:
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dw_producer = match.group('producer')
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return 'GNU AS' in dw_producer
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def get_asm_objects(self, objects):
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"""Return a list of object files built from ASM."""
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return [o for o in objects if self.check_if_obj_from_asm(o)]
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class GCC_ARM(GCC):
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pass
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Reference in New Issue
Block a user