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| author | cnnrznn <cnnrznn@gmail.com> | 2016-11-16 13:58:53 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-11-16 13:58:53 -0500 |
| commit | 53e58a99885ddcf08fa5a352a917a9e6100e093a (patch) | |
| tree | 4008b3419fbe0d7581bcc7bb57038147a93a01ab | |
| parent | 1818c8eabf2cb1c65019bafd57198eaade8af9c0 (diff) | |
Update dist-langs.md
| -rw-r--r-- | chapter/4/dist-langs.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/chapter/4/dist-langs.md b/chapter/4/dist-langs.md index 9f3a91a..8745be9 100644 --- a/chapter/4/dist-langs.md +++ b/chapter/4/dist-langs.md @@ -39,6 +39,8 @@ However, there are ways of making C behave in a similar fashion with minimal dow Shuffler [citation] is a system for continuous randomization of code. Using techniques discussed in the paper, one could dynamically replace sections of a binary. Another, slightly hack-ish workaround would be to receive the upgrade, serialize the current state, and finally run the new binary based on the serialized state. +A third way of circumventing this problem would be to encapsulate any code in a shared library, and have logic in the program to unmap the old code, replace the library, and remap. +This approach is analogous to Erlang's approach. Other than dynamic code swapping and poor error detection, Erlang does not offer anything that is not offered by a traditional OS. Isolation, concurrency, and message passing can all be accomplished with unix-style system calls. |