Currently, plugins do not have a way to further inspect or even mutate
script functions after ZAM optimization ran. One use-case here is
zeek-perf-support [1]. This plugin wraps Stmt instances of functions,
events and hooks hooks with a small assembly stub to support JIT map
files [2] and for integration with perf tools.
This change introduces a new InitPreExecution() hook that runs after
ZAM optimization completed, just before the zeek_init() event is enqueued.
Additionally, remove the existing CPP_activation_hook. It doesn't seem
to be used. If it becomes necessary in the future, the new
InitPreExecution() hook can be leveraged instead.
[1] https://github.com/zeek/zeek-perf-support
[2] https://github.com/torvalds/linux/blob/master/tools/perf/Documentation/jit-interface.txt
This largely copies over Spicy's `.clang-format` configuration file. The
one place where we deviate is header include order since Zeek depends on
headers being included in a certain order.
When bumping the VERSION file, everything that includes the auto-generated
zeek/zeek-config.h needs to rebuild and ccache usage is voided due the file
changing. Split the mutable version information into a new zeek-version.h
file to avoid this.
Further, do not include zeek-version.h within Plugin.h and avoid the reference
to ZEEK_VERSION_FUNCTION unless we're building an external plugin.
Closes#2776.
* microsoft/master: (71 commits)
Clang formatting
Mask ports before inserting them into the map
Fix compiler warning from applied patch
Remove statistics plugin in favor of stats bif
Add EventHandler version of stats plugin
Mark a few EventHandler methods const
Changed implementation from std::map to std::unordered_map of Val.cc
Removed const, Windows build is now working
Added fixes suggested in PR
Update src/packet_analysis/protocol/ip/IP.cc
Apply suggestions from code review
Clang format again but now with v13.0.1
Rewrote usages of define(_MSC_VER) to ifdef _MSC_VER
Clang format it all
Fixed initial CR comments
Add NEWS entry about Windows port
Add a couple of extra unistd.h includes to fix a build failure
Use std::chrono instead of gettimeofday
Update libkqueue submodule [nomail]
Don't call tokenize_string if the input string is empty
...
The new hooks works similar to the existing `HookLoadFile` but,
additionally, allows the plugin to return a string that contains the
code to be used for the file being loaded. If the plugin does so, the
content of any actual file on disk will be ignored (in fact, there
doesn't even need to be a file on disk in that case). This works for
both Zeek scripts and signatures.
There's a new test that covers the new functionality, testing loading
both scripts and signatures from memory. I also manually tested that the
debugger integration works, but I don't see much of a way to add a
regression test for that part.
We keep the existing hook as well for backwards compatibility. We could
decide to deprecate it, but not sure that buys us much, so left that
out.
Closes#1757.
Merge adjustments:
- Added back in deprecation tag for base_type_no_ref()
- Added back the deprecated plugin::hook_name() function
* origin/topic/timw/1032-namespaced-enums:
Deprecate plugin::HookType and plugin::component::Type in a different way
Deprecate init_class and IDScope in another way.
Deprecate TypeTag and friends in a different way
Deprecate attr_tag in a different way, rename to AttrTag
Merge adjustments:
- Preserved original `base_type_no_ref` argument type as ::TypeTag
- Removed superfluous #pragma guard around deprecated TableVal ctor
- Clarify NEWS regarding MetaHook{Pre,Post} deprecations
- Simplify some `::zeek::` qualifications to just `zeek::`
- Prefixed FORWARD_DECLARE_NAMESPACED macro with ZEEK_
* origin/topic/timw/266-namespaces:
Disable some deprecation diagnostics for GCC
Rename BroType to Type
Update NEWS
Review cleanup
Move Type types to zeek namespace
Move Flare/Pipe from the bro namespace to zeek::detail
Move Attr to the zeek::detail namespace
Move Trigger into the zeek::detail namespace
Move ID to the zeek::detail namespace
Move Anon.h into zeek::detail namespace
Mark all of the aliased classes in plugin/Plugin.h deprecated, and fix all of the plugins that were using them
Move all of the base plugin classes into the zeek::plugin namespace
Expr: move all classes into zeek::detail
Stmt: move Stmt classes into zeek::detail namespace
Add utility macro for creating namespaced aliases for classes
Clang automatically disables deprecation warnings for types used within
already-deprecated contexts, such as if you use a deprecated type inside
of a method that's beeen marked as deprecated. GCC doesn't have this
feature so it spews a lot more warnings. These functions are now wrapped
in pragmas that disable the warnings for the usage.
