[Bug ld/19965] Copy relocation leads to change in read-only data

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19965

--- Comment #4 from Alan Modra <amodra at gmail dot com> ---
BTW, the testcase in comment #3 (and yours too!) show just how difficult it is
to fix this problem.  When the main program is *not* relro you don't have
anywhere to put the new .dynbss.ro or whatever you want to call the internal
linker generated section for read-only .dynbss variables.  You don't have a
.data.rel.ro in the main executable and can't tack them on to .rodata, because
then ld.so will segfault when applying the copy relocation..

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