[Bug ld/22756] Linker relaxation miscalculates symbol addresses on riscv

[wilson at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=22756

Jim Wilson <wilson at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |wilson at gcc dot gnu.org

--- Comment #1 from Jim Wilson <wilson at gcc dot gnu.org> ---
The function size is wrong too.

The function address/size is modified in riscv_relax_delete_bytes in
elfnn-riscv.c.  This goes through the symbol table, and looks for any symbol
whose address/size if affected by the deleted bytes, and then adjusts the
symbol address/size by the deleted byte count.

The problem here is that for part of the link, for __wrap_exit, we have two
identical symbols with the same address and size.  Hence, when we adjust
symbols, we adjust __wrap_exit twice, causing us to delete too much from both
its address and size.

I don't know why we have two identical symbols yet, I will be looking at that
next.

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