Fleshing out CLI flags - Githubissues

reverie-rs / reverie

trace and intercept linux syscalls.

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Closed rrnewton closed 5 years ago

rrnewton commented 5 years ago

Here is a list of CLI flags we could add. Please edit this description to add more, or check them off.

[ ] --tool libfoo.so: allow the user to override the tool. I suggest examples echo.so (systrace) and maybe count.so be included with this systrace repo.
[x] --env-all pass through all env vars from the env, default "no".
[x] --env: like the Docker option. Note this supports both --env X=3 and --env X (inherit from environment).

What else?

wangbj commented 5 years ago

what does --tool do? allowing libfoo.so replace libdet.so?

rrnewton commented 5 years ago

Yes, abstract over the "systrace tool" (like a "Pin tool") that implements the instrumentation, i.e. implements the captured_syscall callback.

wangbj commented 5 years ago

Add below command line arguments:

--library-path: path where to find libsystrace.so and libdet.so; default value is $(cwd)/lib
--env-all, pass host (systrace itself) env vars
--env, add additional env var(s) to tracee

Changed pushed into f054f2b146ee2aa2041a14d97e3279fe499d7129

wangbj commented 5 years ago

Added --tool command line option to specify tool explicitly;
killed --env-all, now systrace inherits all environment variables from the tracer, unless specified with --no-host-envs.

wangbj commented 5 years ago

commit: cb36976302f7485fef1cc84a2a332d195c9b9cde