DTrace support: function calls, GC activity, line execution
Tested on macOS 10.11 dtrace, Ubuntu 16.04 SystemTap, and libbcc.
Largely based by an initial patch by Jesús Cea Avión, with some
influence from Dave Malcolm's SystemTap patch and Nikhil Benesch's
unification patch.
Things deliberately left out for simplicity:
- ustack helpers, I have no way of testing them at this point since
they are Solaris-specific
- PyFrameObject * in function__entry/function__return, this is
SystemTap-specific
- SPARC support
- dynamic tracing
- sys module dtrace facility introspection
All of those might be added later.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 7682c48..d3f61f7 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -1370,6 +1370,9 @@
/* Define if you want documentation strings in extension modules */
#undef WITH_DOC_STRINGS
+/* Define if you want to compile in DTrace support */
+#undef WITH_DTRACE
+
/* Define if you want to use the new-style (Openstep, Rhapsody, MacOS) dynamic
linker (dyld) instead of the old-style (NextStep) dynamic linker (rld).
Dyld is necessary to support frameworks. */