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reintroduction of "-O add-C++" option

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Vern Paxson 2021-12-10 10:19:23 -08:00
parent 7a6a81c200
commit 8c59626eb9
12 changed files with 74 additions and 488 deletions
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8
src/script_opt/CPP/README.md
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@ -73,9 +73,7 @@ The following workflow assumes you are in the `build/` subdirectory:
1. `./src/zeek -O gen-C++ target.zeek`
The generated code is written to
`CPP-gen.cc`. The compiler will also produce
a file `CPP-hashes.dat`, for use by an advanced feature, and an
empty `CPP-gen-addl.h` file (same).
`CPP-gen.cc`.
2. `ninja` or `make` to recompile Zeek
3. `./src/zeek -O use-C++ target.zeek`
Executes with each function/hook/event
@ -110,6 +108,10 @@ On the other hand, it's possible (not yet established) that code created
using `gen-C++` can be made to compile significantly faster than
standalone code.
Another option, `-O add-C++`, instead _appends_ the generated code to existing C++ in `CPP-gen.cc`.
You can use this option repeatedly for different scripts and then
compile the collection _en masse_.
There are additional workflows relating to running the test suite, which
we document only briefly here as they're likely going to change or go away
, as it's not clear they're actually needed.