2 Commits

Author SHA1 Message Date
Weverything
3dd00461f9 [trace][intelpt] Fix out-of-bounds access.
The StringRef single argument constructor expects a null-terminated
string.  Explicitly pass the size to prevent reading pass the end
of the array.
2022-05-03 16:07:58 -07:00
Walter Erquinigo
5de0a3e9da [trace][intelpt] Support system-wide tracing [1] - Add a method for accessing the list of logical core ids
In order to open perf events per core, we need to first get the list of
core ids available in the system. So I'm adding a function that does
that by parsing /proc/cpuinfo. That seems to be the simplest and most
portable way to do that.

Besides that, I made a few refactors and renames to reflect better that
the cpu info that we use in lldb-server comes from procfs.

Differential Revision: https://reviews.llvm.org/D124573
2022-05-02 08:48:49 -07:00