[Bug tools/26043] eu-addr2line debuginfo-path option with relative path doesn't find file:line information

mark at klomp dot org sourceware-bugzilla@sourceware.org
Thu Jun 25 15:45:20 GMT 2020


--- Comment #8 from Mark Wielaard <mark at klomp dot org> ---
(In reply to devel.origin from comment #7)
> For that demo the debug files are ending up in a custom directory (the
> build-id-demo/.build-id/) for the packge builder to pick up. So they can't
> be found by GDB. When packages are installed the debug info is naturally in
> /usr/lib/debug.
> To make the GDB work when launching a developer build from the build
> directory the build script puts a copy of debug info of all libraries into
> one .build-id/ on the top level of the build directory (I haven't added this
> part to the testcase project). In .gdbinit there is an option to look in
> current dir: "set debug-file-directory /usr/lib/debug:.", so GDB finds debug
> files if the current dir has a .build-id/ subdir.

Thanks. I have a clear picture now.

I think it would make sense to change the search for .build-id based files in
the default search from only checking absolute paths to also include relative
paths. I am just pondering how to prevent an "explosion" of extra stats/checks.
With the default setting it would add 2 extra stat calls (which would normally
always fail). Maybe that isn't too bad?

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