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How clean is it? Can you simply exec the result? Glibc used to have unexec(), which is fairly old, but it was removed because nobody used it (except Emacs, and

• mmoez 7y ago
  > How clean is it? It's as clean as any official Win32 API which uses their privilege system to restrict/allow accesses to each and any bit of information on the process state and/or memory. > Can you simply exec the result? This is possible using CreateThread() [1] which creates a remote thread inside another process execution context. [1] https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-createthread https://docs.microsoft.com/en-us/windows/win32/api/processth... > Glibc used to have unexec() My understanding is that unexec() was more about making a snapshot of the whole process state to an executable on disk.
  • hackworks 7y ago
    That is my understanding too. Solaris had a flag for dldump (https://docs.oracle.com/cd/E19455-01/806-0627/6j9vhfmop/index.html https://docs.oracle.com/cd/E19455-01/806-0627/6j9vhfmop/inde...). Emacs moved to a portable dumper (maybe inspired from XEmacs)
• rjsw 7y ago
  Emacs had its own unexec().