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llvm / llvm-project / 755733e219a11a265e47cc1e4f63ad2dbb15f41e
commit755733e219a11a265e47cc1e4f63ad2dbb15f41e[log] [tgz]
authorMed Ismail Bennani <ismail@bennani.ma>Mon Dec 01 17:23:43 2025 -0800
committerGitHub <noreply@github.com>Mon Dec 01 17:23:43 2025 -0800
tree172a1042b9bc3812f26c81797c1bd16579fb6459
parent326ee7af410a5bba12ea20c80c0ad16bb915e47f [diff]
[lldb/Target] Track containing StackFrameList to avoid circular dependencies (#170226)

This change adds tracking of the StackFrameList that produced each frame
by storing a weak pointer (m_frame_list_wp) in both `StackFrame` and
`ExecutionContextRef`.

When resolving frames through `ExecutionContextRef::GetFrameSP`, the
code now first attempts to use the remembered frame list instead of
immediately calling `Thread::GetStackFrameList`. This breaks circular
dependencies that can occur during frame provider initialization, where
creating a frame provider might trigger `ExecutionContext` resolution,
which would then call back into `Thread::GetStackFrameList()`, creating
an infinite loop.

The `StackFrameList` now sets m_frame_list_wp on every frame it creates,
and a new virtual method `GetOriginatingStackFrameList` allows frames to
expose their originating list.

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
6 files changed
tree: 172a1042b9bc3812f26c81797c1bd16579fb6459
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libsycl/
  16. libunwind/
  17. lld/
  18. lldb/
  19. llvm/
  20. llvm-libgcc/
  21. mlir/
  22. offload/
  23. openmp/
  24. orc-rt/
  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
  30. .clang-format-ignore
  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

The LLVM Compiler Infrastructure

OpenSSF Scorecard OpenSSF Best Practices libc++

Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

Consult the Getting Started with LLVM page for information on building and running LLVM.

For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting in touch

Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.

The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.