tree 3a2262071e9462239e1485132983e3ac502a890a
parent 1b9749585beb32b28cb50caac78899b1985f4cc5
author davg <davg@google.com> 1539278107 -0400
committer David Goldman <davg@google.com> 1539280516 -0400

Improve debugging support for (Obj)C(++)

Note: This requires Bazel 0.17.1 or later since it relies on the debug_prefix_map_pwd_is_dot
CROSSTOOL feature from https://github.com/bazelbuild/bazel/commit/3f46dd0f6d5a042fc28d265411a6014f666a40c1
which was first released in Bazel 0.17.1.

This fixes #54 by remapping debug information (e.g. OSO stabs) to be relative to the PWD of each action,
effectively making the debug information relative to the workspace root / bazel execution root. With this
fix, users can re-enable sandboxing for Obj-C actions (remove --strategy= ObjcCompile=standalone) and still
be able to debug Objective-C sources.

Later on, Tulsi remaps `./` -> `<workspace root>` for Xcode's lldb as Xcode does not support invoking
lldb from a specific directory (it launches lldb from `/`, the root directory).

PiperOrigin-RevId: 216716521