It's a simple CLI tool that dumps the contents of a Sysprof capture
file in a syntax inspired by GTK's render node syntax.
It prints metadata, the callgraph, marks, and counters. Other fields
may be added as needed, but for now this is sufficient for inspecting
WebKit captures.
There are CLI args for not printing particular groups, so that we can
filter out what we need.
This is a private allocator that can be used for large groups of
allocations that are tied to a specific object.
For example, the callgraph owning many nodes can use this so all the nodes
are allocated together, but also freed in a single stage ignoring all the
complex GList linked nodes among them.
This simplifies deployment on embedded devices, where polkit is usually
unncessary at runtime, but pulls in quite a few otherwise unncessary
dependencies. Start to improve the situation by allowing to selectively
disable polkit-agent support at compile time, which aids in container
usage scenarios, where one wants to invoke 'sysprof-cli' from within
the container. Bypassing polkit-agent in the container is then desired,
since the host sysprofd will handle asking for permissions to enable
the tracing. It allows for a simpler setup of rootless podman
containers, avoiding UID mismatches, that lead to rejection of the
tracing enablement.
- Add a new 'polkit-agent' meson build feature, that allows to force disabling
polkit-agent support (-Dpolkit-agent=disabled).
- Mark the 'polkit-agent' feature as enabled, by default, to reflect
the current status (sysprof-cli did not build without polkit-agent support).
- libsysprof/sysprof-instrument.c: Build fix when polkit is not available,
remove the unnecessary 'g_autopr(PolkitDetails) details' variable.
- Alter the sysprof-cli dependencies to only attempt to link against
polkit-agent, if necessary. Modify sysprof-cli.c to wrap all code using
polkit-agent in HAVE_POLKIT_AGENT blocks.
