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Make cargo aware of dwp files. #11572

Merged
merged 2 commits into from
Jan 30, 2023
Merged

Make cargo aware of dwp files. #11572

merged 2 commits into from
Jan 30, 2023

Commits on Jan 15, 2023

  1. Make cargo aware of dwp files. 

    When using -Csplit-debuginfo=packed on Linux, rustc will produce a dwp file.
Unlike the dwo files, whose paths are embedded into the binary, there's no
information in the binary to help a debugger locate a dwp file. By convention,
the dwp file for <EXE> is given the name <EXE>.dwp and placed next to <EXE>.

When cargo hardlinks the executable file rustc put in target/debug/deps into
target/debug, it also needs to hardlink the dwp file along with it. Failing to
do this prevents the debugger from finding the dwp file when the binary is
executed from target/debug, as there's no way for the debugger to know to look
in the deps subdirectory.
    @khuey
    khuey committed Jan 15, 2023
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  2. address review comments

    @khuey
    khuey committed Jan 15, 2023
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