Esempio n. 1
0
    def _ElfPathAndToolPrefixForSymbol(self, size_info, elf_path):
        tool_prefix = self._tool_prefix_finder.Tentative()
        orig_tool_prefix = size_info.metadata.get(models.METADATA_TOOL_PREFIX)
        if orig_tool_prefix:
            orig_tool_prefix = path_util.FromSrcRootRelative(orig_tool_prefix)
            if os.path.exists(path_util.GetObjDumpPath(orig_tool_prefix)):
                tool_prefix = orig_tool_prefix

        # TODO(agrieve): Would be even better to use objdump --info to check that
        #     the toolchain is for the correct architecture.
        assert tool_prefix is not None, (
            'Could not determine --tool-prefix. Possible fixes include setting '
            '--tool-prefix, or setting --output-directory')

        def build_id_matches(elf_path):
            found_build_id = archive.BuildIdFromElf(elf_path, tool_prefix)
            expected_build_id = size_info.metadata.get(
                models.METADATA_ELF_BUILD_ID)
            return found_build_id == expected_build_id

        filename = size_info.metadata.get(models.METADATA_ELF_FILENAME)
        paths_to_try = []
        if elf_path:
            paths_to_try.append(elf_path)
        else:
            auto_output_directory_finders = [
                path_util.OutputDirectoryFinder(
                    any_path_within_output_directory=s.size_path)
                for s in self._size_infos
            ] + [self._output_directory_finder]
            for output_directory_finder in auto_output_directory_finders:
                output_dir = output_directory_finder.Tentative()
                if output_dir:
                    # Local build: File is located in output directory.
                    paths_to_try.append(
                        os.path.normpath(os.path.join(output_dir, filename)))
                # Downloaded build: File is located beside .size file.
                paths_to_try.append(
                    os.path.normpath(
                        os.path.join(os.path.dirname(size_info.size_path),
                                     os.path.basename(filename))))

        paths_to_try = [p for p in paths_to_try if os.path.exists(p)]

        for i, elf_path in enumerate(paths_to_try):
            if build_id_matches(elf_path):
                return elf_path, tool_prefix

            # Show an error only once all paths are tried.
            if i + 1 == len(paths_to_try):
                assert False, 'Build ID does not match for %s' % elf_path

        assert False, (
            'Could not locate ELF file. If binary was built locally, ensure '
            '--output-directory is set. If output directory is unavailable, '
            'ensure {} is located beside {}, or pass its path explicitly using '
            'elf_path=').format(os.path.basename(filename),
                                size_info.size_path)
Esempio n. 2
0
    def _ToolPrefixForSymbol(self, size_info):
        tool_prefix = self._tool_prefix_finder.Tentative()
        orig_tool_prefix = size_info.metadata.get(models.METADATA_TOOL_PREFIX)
        if orig_tool_prefix:
            orig_tool_prefix = path_util.FromSrcRootRelative(orig_tool_prefix)
            if os.path.exists(path_util.GetObjDumpPath(orig_tool_prefix)):
                tool_prefix = orig_tool_prefix

        # TODO(agrieve): Would be even better to use objdump --info to check that
        #     the toolchain is for the correct architecture.
        assert tool_prefix is not None, (
            'Could not determine --tool-prefix. Possible fixes include setting '
            '--tool-prefix, or setting --output-directory')
        return tool_prefix