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Pablo Galindo Salgado b1e8453dda gh-98894: Restore function entry/exit DTrace probes 
The function__entry and function__return probes stopped working in Python 3.11
when the interpreter was restructured around the new bytecode system. This change
restores these probes by adding DTRACE_FUNCTION_ENTRY() at the start_frame label
in bytecodes.c and DTRACE_FUNCTION_RETURN() in the RETURN_VALUE and YIELD_VALUE
instructions. The helper functions are defined in ceval.c and extract the
filename, function name, and line number from the frame before firing the probe.

This builds on the approach from https://github.com/python/cpython/pull/125019
but avoids modifying the JIT template since the JIT does not currently support
DTrace. The macros are conditionally compiled with WITH_DTRACE and are no-ops
otherwise. The tests have been updated to use modern opcode names (CALL, CALL_KW,
CALL_FUNCTION_EX) and a new bpftrace backend was added for Linux CI alongside
the existing SystemTap tests. Line probe tests were removed since that probe
was never restored after 3.11.
2025-12-08 00:57:42 +00:00
..
clinic gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_contextvars.c gh-128384: Use a context variable for warnings.catch_warnings (gh-130010) 2025-04-09 16:18:54 -07:00
_warnings.c gh-135801: Improve filtering by module in warn_explicit() without module argument (GH-140151) 2025-10-30 15:55:39 +02:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
asm_trampoline.S gh-136459: Add perf trampoline support for macOS (#136461) 2025-07-22 16:47:24 +01:00
assemble.c gh-87859: Track Code Object Local Kinds For Arguments (gh-132980) 2025-04-29 02:21:47 +00:00
ast.c gh-132661: Implement PEP 750 (#132662) 2025-04-30 11:46:41 +02:00
ast_preprocess.c gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
ast_unparse.c gh-132661: Disallow Template/str concatenation after PEP 750 spec update (#135996) 2025-07-21 08:44:26 +02:00
bltinmodule.c gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
bootstrap_hash.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
brc.c Fix typos in documentation and comments (#119763) 2024-06-04 10:22:22 +00:00
bytecodes.c gh-98894: Restore function entry/exit DTrace probes 2025-12-08 00:57:42 +00:00
ceval.c gh-98894: Restore function entry/exit DTrace probes 2025-12-08 00:57:42 +00:00
ceval_gil.c gh-135953: Add GIL contention markers to sampling profiler Gecko format (#139485) 2025-11-17 12:46:26 +00:00
ceval_macros.h gh-98894: Restore function entry/exit DTrace probes 2025-12-08 00:57:42 +00:00
codecs.c Python/codecs.c: Remove unused forward declaration (#139511) 2025-10-03 13:33:49 +02:00
codegen.c gh-138349: Fix crash when combining module-level annotation and listcomp (#138363) 2025-09-10 15:18:39 +02:00
compile.c gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
condvar.h gh-104530: Enable native Win32 condition variables by default (GH-104531) 2024-02-02 13:50:51 +00:00
config_common.h gh-76785: Add PyInterpreterConfig Helpers (gh-117170) 2024-04-02 20:35:52 +00:00
context.c gh-138192: Fix Context initialization so that all subinterpreters are assigned the MISSING value. (gh-138503) 2025-09-04 17:19:30 +00:00
critical_section.c gh-140795: fetch thread state once on fast path for critical sections (#141406) 2025-11-21 19:49:53 +05:30
crossinterp.c gh-140306: Fix memory leaks in cross-interpreter data handling (GH-140307) 2025-10-19 22:24:28 +03:00
crossinterp_data_lookup.h gh-135443: Sometimes Fall Back to __main__.__dict__ For Globals (gh-135491) 2025-06-16 17:34:19 -06:00
crossinterp_exceptions.h gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135369) 2025-06-13 16:45:21 -06:00
dtoa.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
dup2.c gh-108765: Python.h no longer includes <unistd.h> (#108783) 2023-09-02 16:50:18 +02:00
dynamic_annotations.c
dynload_hpux.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_shlib.c gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
dynload_stub.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_win.c gh-131942: Use the Python-specific Py_DEBUG macro rather than _DEBUG in Windows-related C code (GH-131944) 2025-05-08 15:01:25 +00:00
emscripten_signal.c GH-108614: Unbreak emscripten build (GH-109132) 2023-09-08 17:54:45 +01:00
emscripten_syscalls.c gh-124621: Emscripten: Fix __syscall_ioctl patch (GH-136993) 2025-07-22 15:05:26 +02:00
emscripten_trampoline.c gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470) 2025-09-17 15:33:55 +01:00
emscripten_trampoline_inner.c gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470) 2025-09-17 15:33:55 +01:00
errors.c gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
executor_cases.c.h gh-98894: Restore function entry/exit DTrace probes 2025-12-08 00:57:42 +00:00
fileutils.c gh-42400: Fix buffer overflow in _Py_wrealpath() for very long paths (#141529) 2025-11-18 17:34:58 +01:00
flowgraph.c gh-138714: Don't assume next block has instructions when propagating line numbers (#138770) 2025-09-17 09:52:56 -07:00
frame.c gh-131173: Improve exception handling during take_ownership processing (#132620) 2025-04-17 13:38:34 -07:00
frozen.c GH-89435: os.path should not be a frozen module (#126924) 2024-11-22 18:50:30 +00:00
frozenmain.c Use PyConfig_Get() in frozenmain.c (#137421) 2025-08-06 14:33:28 +02:00
future.c gh-126139: Improve error message location for future statement with unknown feature (#126140) 2024-10-29 23:57:59 +00:00
gc.c GH-140638: Add a GC "candidates" stat (GH-141814) 2025-11-22 21:59:14 +00:00
gc_free_threading.c gh-142048: Fix quadratically increasing GC delays (gh-142051) 2025-12-01 19:04:47 -05:00
gc_gil.c gh-100240: Use a consistent implementation for freelists (#121934) 2024-07-22 12:08:27 -04:00
generated_cases.c.h gh-98894: Restore function entry/exit DTrace probes 2025-12-08 00:57:42 +00:00
getargs.c Revert "gh-112068: C API: Add support of nullable arguments in PyArg_Parse (GH-121303)" (#136991) 2025-07-22 16:39:50 +03:00
getcompiler.c gh-141341: Rename COMPILER macro to _Py_COMPILER on Windows (#141342) 2025-11-10 15:50:51 +01:00
getcopyright.c gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
getopt.c GH-133336: Remove reserved `-J` flag for Jython (#133444) 2025-05-05 15:09:19 +00:00
getplatform.c
getversion.c gh-119132: Remove "experimental" tag from the CPython free-threading. (gh-135550) 2025-06-16 23:32:52 +09:00
hamt.c gh-137440: Update comment in Python/hamt.c on importing for testing (GH-137441) 2025-08-07 09:50:49 -04:00
hashtable.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
import.c gh-141780: Make PyModule_FromSlotsAndSpec enable GIL if needed (GH-141785) 2025-11-24 13:26:35 +01:00
importdl.c gh-140011: Delete importdl assertion that prevents importing embedded modules from packages (GH-141605) 2025-11-26 14:12:49 +01:00
index_pool.c gh-91048: Refactor and optimize remote debugging module (#134652) 2025-05-25 20:19:29 +00:00
initconfig.c gh-131253: free-threaded build support for pystats (gh-137189) 2025-11-03 11:36:37 -08:00
instruction_sequence.c GH-124715: Move trashcan mechanism into Py_Dealloc (GH-132280) 2025-04-30 11:37:53 +01:00
instrumentation.c gh-120158: Fix inconsistent monitoring state when setting events too frequently (gh-141845) 2025-11-23 10:07:17 -05:00
interpconfig.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
intrinsics.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
jit.c GH-141794: Limit size of generated machine code. (GH-142228) 2025-12-03 17:43:35 +00:00
legacy_tracing.c gh-137400: Fix thread-safety issues when profiling all threads (gh-137518) 2025-08-13 14:15:12 -04:00
lock.c gh-131253: free-threaded build support for pystats (gh-137189) 2025-11-03 11:36:37 -08:00
marshal.c gh-141370: Fix undefined behavior when using Py_ABS() (GH-141548) 2025-12-05 16:24:35 +02:00
modsupport.c gh-137210: Add a struct, slot & function for checking an extension's ABI (GH-137212) 2025-09-05 16:23:18 +02:00
mysnprintf.c Add a warning message about PyOS_snprintf (#95993) 2022-10-07 11:49:53 -07:00
mystrtoul.c gh-108765: Python.h no longer includes <ctype.h> (#108831) 2023-09-03 18:54:27 +02:00
object_stack.c gh-100240: Use a consistent implementation for freelists (#121934) 2024-07-22 12:08:27 -04:00
opcode_targets.h GH-139109: Support switch/case dispatch with the tracing interpreter. (GH-141703) 2025-11-18 13:31:48 +00:00
optimizer.c gh-139109: JIT _EXIT_TRACE to ENTER_EXECUTOR rather than _DEOPT (GH-141573) 2025-11-15 20:19:41 +00:00
optimizer_analysis.c gh-141976: Check stack bounds in JIT optimizer (GH-142201) 2025-12-04 20:28:08 +00:00
optimizer_bytecodes.c gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310) 2025-11-13 18:08:32 +00:00
optimizer_cases.c.h gh-141976: Check stack bounds in JIT optimizer (GH-142201) 2025-12-04 20:28:08 +00:00
optimizer_symbols.c gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310) 2025-11-13 18:08:32 +00:00
parking_lot.c gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735) 2025-09-16 09:21:58 +01:00
pathconfig.c gh-133644: Remove deprecated Python initialization getter functions (#133661) 2025-05-09 11:39:23 +00:00
perf_jit_trampoline.c gh-136459: Use platform-specific type in perf_jit_trampoline (GH-137031) 2025-07-23 10:20:42 +02:00
perf_trampoline.c gh-137291: Support perf profiler with an evaluation hook (#137292) 2025-08-07 14:54:12 -07:00
preconfig.c GH-133711: Enable UTF-8 mode by default (PEP 686) (#133712) 2025-07-15 10:45:41 +01:00
pyarena.c Chore: Fix typo in pyarena.c (#126527) 2024-11-07 16:37:41 +01:00
pyctype.c
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c gh-111389: replace deprecated occurrences of _PyHASH_* macros (#141236) 2025-11-09 15:14:08 +01:00
pylifecycle.c gh-138122: Don't sample partial frame chains (#141912) 2025-12-07 15:53:48 +00:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c gh-138122: Don't sample partial frame chains (#141912) 2025-12-07 15:53:48 +00:00
pystats.c gh-131253: free-threaded build support for pystats (gh-137189) 2025-11-03 11:36:37 -08:00
pystrcmp.c gh-108767: Replace ctype.h functions with pyctype.h functions (#108772) 2023-09-01 18:36:53 +02:00
pystrhex.c gh-141370: Fix undefined behavior when using Py_ABS() (GH-141548) 2025-12-05 16:24:35 +02:00
pystrtod.c gh-141004: soft-deprecate Py_INFINITY macro (#141033) 2025-11-12 13:44:49 +01:00
Python-ast.c gh-140471: Fix buffer overflow in AST node initialization with malformed _fields (#140506) 2025-10-23 15:35:21 +00:00
Python-tokenize.c gh-111178: Fix function signatures for test_types (#131455) 2025-03-19 13:46:17 +00:00
pythonrun.c gh-141070: Add PyUnstable_Object_Dump() function (#141072) 2025-11-18 16:13:13 +00:00
pytime.c Remove internal _PyTime_AsLong() function (#141053) 2025-11-05 18:37:06 +01:00
qsbr.c gh-131253: free-threaded build support for pystats (gh-137189) 2025-11-03 11:36:37 -08:00
README
remote_debug.h gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137) 2025-12-06 22:37:34 +00:00
remote_debugging.c gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137) 2025-12-06 22:37:34 +00:00
specialize.c gh-141367: Use CALL_LIST_APPEND instruction only for lists, not for list subclasses (GH-141398) 2025-11-14 21:38:39 +00:00
stackrefs.c gh-131527: Stackref debug borrow checker (#140599) 2025-11-05 11:12:56 -08:00
stdlib_module_names.h gh-81313: Add the math.integer module (PEP-791) (GH-133909) 2025-10-31 16:13:43 +02:00
structmember.c gh-132685: fix thread safety of PyMember_GetOne with _Py_T_OBJECT (#132690) 2025-04-18 21:03:42 +05:30
suggestions.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
symtable.c gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
sysmodule.c gh-141579: Fix perf_jit backend in sys.activate_stack_trampoline() (#141580) 2025-11-15 02:23:54 +00:00
thread.c gh-134745: Use "pymutex" for sys.thread_info on Windows (#141140) 2025-11-06 16:10:39 +01:00
thread_nt.h gh-134745: Change PyThread_allocate_lock() implementation to PyMutex (#134747) 2025-05-30 10:15:47 +00:00
thread_pthread.h gh-137884: Added threading.get_native_id() on Illumos/Solaris (GH-137927) 2025-08-20 17:10:44 +00:00
thread_pthread_stubs.h gh-125161: return non zero value in pthread_self on wasi (#125303) 2024-10-13 20:59:41 +05:30
tier2_engine.md Docs: fix spelling of the word 'transferring' (#116641) 2024-03-13 23:53:32 +01:00
traceback.c gh-138122: Don't sample partial frame chains (#141912) 2025-12-07 15:53:48 +00:00
tracemalloc.c gh-127635: Use flexible array in tracemalloc (#141991) 2025-11-27 12:32:31 +01:00
uniqueid.c gh-128923: Use zero to indicate unassigned unique id (#128925) 2025-01-17 16:42:27 +01:00
vm-state.md gh-133079: Remove Py_C_RECURSION_LIMIT & PyThreadState.c_recursion_remaining (GH-133080) 2025-04-29 12:56:20 +02:00

README 

Miscellaneous source files for the main Python shared library