mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

gh-96143: Allow Linux perf profiler to see Python calls (GH-96123)

Browse source 
⚠️  ⚠️ Note for reviewers, hackers and fellow systems/low-level/compiler engineers ⚠️ ⚠️ 

If you have a lot of experience with this kind of shenanigans and want to improve the **first** version, **please make a PR against my branch** or **reach out by email** or **suggest code changes directly on GitHub**. 

If you have any **refinements or optimizations** please, wait until the first version is merged before starting hacking or proposing those so we can keep this PR productive.
This commit is contained in:
Pablo Galindo Salgado 2022-08-30 18:11:18 +01:00 • committed by GitHub
parent 0f733fffe8
commit 6d791a9736
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
24 changed files with 1412 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Python/pylifecycle.c
View file

@ -1149,6 +1149,16 @@ init_interp_main(PyThreadState *tstate)
if (_PyTraceMalloc_Init(config->tracemalloc) < 0) {
return _PyStatus_ERR("can't initialize tracemalloc");
}
#ifdef PY_HAVE_PERF_TRAMPOLINE
if (config->perf_profiling) {
if (_PyPerfTrampoline_SetCallbacks(&_Py_perfmap_callbacks) < 0 ||
_PyPerfTrampoline_Init(config->perf_profiling) < 0) {
return _PyStatus_ERR("can't initialize the perf trampoline");
}
}
#endif
}
status = init_sys_streams(tstate);
@ -1723,6 +1733,7 @@ finalize_interp_clear(PyThreadState *tstate)
_PyArg_Fini();
_Py_ClearFileSystemEncoding();
_Py_Deepfreeze_Fini();
_PyPerfTrampoline_Fini();
}
finalize_interp_types(tstate->interp);