diff options
| -rw-r--r-- | Misc/SpecialBuilds.txt | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/Misc/SpecialBuilds.txt b/Misc/SpecialBuilds.txt index 1d91e6b..0553439 100644 --- a/Misc/SpecialBuilds.txt +++ b/Misc/SpecialBuilds.txt @@ -135,13 +135,13 @@ Py_DEBUG introduced in 1.5 This is what is generally meant by "a debug build" of Python. -Py_DEBUG implies Py_REF_DEBUG, Py_TRACE_REFS, and PYMALLOC_DEBUG (if -WITH_PYMALLOC is enabled). In addition, C assert()s are enabled (via -the C way: by not defining NDEBUG), and some routines do additional -sanity checks inside "#ifdef Py_DEBUG" blocks. +Py_DEBUG implies LLTRACE, Py_REF_DEBUG, Py_TRACE_REFS, and +PYMALLOC_DEBUG (if WITH_PYMALLOC is enabled). In addition, C +assert()s are enabled (via the C way: by not defining NDEBUG), and +some routines do additional sanity checks inside "#ifdef Py_DEBUG" +blocks. --------------------------------------------------------------------------- -COUNT_ALLOCS introduced in 0.9.9 - partly broken in 2.2 and 2.2.1 +COUNT_ALLOCS introduced in 0.9.9 partly broken in 2.2 and 2.2.1 Each type object grows three new members: @@ -186,3 +186,15 @@ sys.getcounts() for which the first allocation of an object of that type occurred most recently is at the front of the list. --------------------------------------------------------------------------- +LLTRACE introduced ...? Long time ago! + +Compile in support of Low Level TRACE-ing of the man interpreter loop. + +When this preprocessor symbol is defined, before eval_frame +(eval_code2 before 2.2) executes a frame's code checks its global +namespace for a variable "__lltrace__". If such a variable is found, +mounds of information about what the interpreter is doing are sprayed +to stdout, such as every opcode and opcode argument and values pushed +onto and popped off the value stack. + +Not useful very often, but very useful when needed. |