[Bug go/27238] [gcc-11] FAIL: gdb.go/package.exp: setting breakpoint at package2.Foo

["ian at airs dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27238

--- Comment #10 from Ian Lance Taylor <ian at airs dot com> ---
For a simple function like Run in this example, the name has two components:
the package-path and the name.  The symbol is the encoded package-path,
followed by ".", followed by the encoded name.

In normal usage, when building with "go build", GCC is invoked with a
-fgo-pkgpath option that sets the package path.  This will be based on the
module name and the package name.  When gccgo is invoked with the -fgo-pkgpath
option (or the older -fgo-prefix option) then the pkgpath will be the string
"go." (with a trailing period) followed by the package name that appears in the
source code.  In this case the package name in the source code is "läufer", so
the package-path is "go.läufer".  The "." is encoded as "_0", the "ä" is
encoded as "_u00e4", hence the encoded package-path is "go_0l_u00e4ufer".

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