This is like sample but has an "enter/exit" flag with it. This can be
useful when you want to provide tracing instead of sampling. We use a
different frame type so that we can denote that this isn't traditional
sampling, and the flag can be used to find the next exit for the current
enter for calculating durations.
The entire stack trace is provided to make things easier on tools
which may want to deal with indirect functions that were not instrumented
but can be unwound. That may allow for tooling to give the user some
insight that it's not *just* this function entering, but some functions
before it were entered too.
This also adds a SysprofTracer instrument which will preload a
libsysprof-tracer-6.so into the process providing the
__cyg_profile_func_enter() and __cyg_profile_func_leave() hooks.
This allows instruments to record a diagnostic and have it land as an
object in a GListModel of diagnostics available to the API consumer.
Such items may be used by recording UI to display issues with the recording
to the user.
That way the descendant graphs can generate the self values but ignore the
summary augmentation (as that would mess up the generated values).
This fixes it so that showing the descendants tree keeps proper Total
and Self values.
We still have some work to do here so it doesn't mess up the summary
augmentation, but this is a start on re-generating the callgraphs for a
specific symbol.
This function will list the symbols in a traceable in a way that is
suitable for showing in a GtkListView or GtkColumnView. For example, that
requires creating copies of the symbols so that duplicates do not cause
hickups with GtkListItemManager.
When selecting a callback node, show all a list of all of the traces where
that occurred on the right, so that you can select them individually.
Currently this only shows pid/time for on the right, but we'll add another
pane that will show the symbolized backtrace soon.
This is handy so that we don't have to keep multiple objects around to
handle this request. Otherwise we'd need to keep references to the
document and that is a bit annoying.
This of course has a limit of about an hour (in tv_nsec), but that is
far longer than we can realistically record anyway.
This uses the intersection of all the bitset from the frame to the root to
first reduce the number of traceables to look at. Once we have the
intersection, we check the traceables for prefix and yield another list
model using that bitset index on the same traceables list model.
This can be used to show a supplimental list of all the traceables for a
callgraph up to certain node.
This provides an area to have augmented functions listing like we have in
the 3-part sysprof view in our current release.
The weighed callgrpah view uses this to show self/total sortable columns
similar to the descendants view.
This has an indirect object (SysprofCallgraphSymbol) so that we can provide
plumbing to get the callgraph as well as the augmented data from the
indirection object.
This allows for callgraphs to show overview in the functions list which
contains the same augmentation that the descendants view does.
