Implement PEP 831 – Frame Pointers Everywhere: Enabling System-Level Observability for Python

[pablogsal]

Linked PRs

• gh-149202: Implement PEP 831 – Frame Pointers Everywhere: Enabling System-Level Observability for Python #149201
• gh-149202: Fix frame pointer unwinding on s390x and ARM #149362
• gh-149202: Highlight PEP 831 in What's New for Python 3.15 #149390
• gh-149202: Fix frame pointer unwinding on ppc64le and armv7/clang #149409
• gh-149202: Don't use -fno-omit-frame-pointer on ppc64le #149485

[hugovk]

Done in #149201 🚀