Nach einem Jahr der Entwicklung wurde das GNU Mes 0.23-Toolset ver\u00f6ffentlicht, das den Bootstrapping-Prozess f\u00fcr GCC erm\u00f6glicht und einen geschlossenen Rebuild-Zyklus aus Quelltexten gew\u00e4hrleistet. Das Toolset l\u00f6st das Problem des verifiziert gestarteten Compiler-Baus in Distributionen, indem es die Kette der zyklischen Neubauten durchbricht (f\u00fcr den Bau des Compilers sind ausf\u00fchrbare Dateien eines bereits gebauten Compilers erforderlich, und bin\u00e4re Compiler-Bauten sind potenzielle Quellen von versteckten Hintert\u00fcren, was es unm\u00f6glich macht, die Integrit\u00e4t der Bauten aus Referenz-Quelltexten vollst\u00e4ndig zu garantieren). <\/p>\n
GNU Mes bietet einen autarken (self-hosting) Interpreter f\u00fcr die Programmiersprache Scheme, geschrieben in C, sowie einen einfachen Compiler f\u00fcr C (MesCC), der in Scheme geschrieben ist. Beide Komponenten sind gegenseitig kompilierbar. Der Scheme-Interpreter erm\u00f6glicht die Erstellung des C-Compilers MesCC, der wiederum die Erstellung einer abgespeckten Version des Compilers TinyCC (tcc) erlaubt, dessen Funktionen bereits ausreichen, um GCC zu erstellen. <\/p>\n
Der Interpreter der Sprache Scheme ist relativ kompakt, umfasst etwa 5000 Codezeilen im einfachsten Teilmen\u00fc der C-Sprache und kann mit dem universellen Trans compiler M2-Planet oder einem simplen C-Compiler, der mit dem selbstkompilierenden Assembler hex0 erstellt wurde, in eine ausf\u00fchrbare Datei umgewandelt werden, der keine externen Abh\u00e4ngigkeiten ben\u00f6tigt. Dabei enth\u00e4lt der Interpreter einen vollwertigen Garbage Collector und stellt eine Bibliothek an ladbaren Modulen zur Verf\u00fcgung. <\/p>\n
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Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"