[lldb] Don't crash when attaching to pid and no binaries found (#100287)

There is a narrow window during process launch on macOS where lldb can
attach and no binaries will be seen as loaded in the process (none
reported by libdyld SPI). A year ago I made changes to set the
new-binary-loaded breakpoint correctly despite this. But we've seen a
crash when this combination is seen, where
CommandObjectProcessAttach::DoExecute assumed there was at least one
binary registered in the Target. Fix that.

Also fix two FileSpec API uses from when we didn't have a GetPath()
method that returned a std::string, and was copying the filepaths into
fixed length buffers. All of this code was from ~14 years ago when we
didn't have that API.

rdar://131631627
1 file changed
tree: 53f5fad45aaad264cce5dc80018c878462f999d2
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. CODE_OF_CONDUCT.md
  34. CONTRIBUTING.md
  35. LICENSE.TXT
  36. pyproject.toml
  37. README.md
  38. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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