R_PPC_EMB_RELSDA is PC-relative?

[Michael Mrozek <mrozekma at gmail dot com>]

I'm trying to figure out which PPC relocations are PC-relative. For the SVR4 ABI ones its fairly easy, since they have P (the "address of the storage unit being relocated") somewhere in their calculation. For the embedded relocs it's somewhat fuzzier. I noticed BFD has R_PPC_EMB_RELSDA marked as PC-relative, but I don't understand why; the definition in the EABI is "The static linker shall set the 16-bits at the address pointed to by the relocation entry to the address of the symbol whose index is in r_info plus the value of r_addend minus the appropriate base for the section containing the symbol". None of that seems to be relative to the offset of the relocated field -- am I missing something obvious?

Thanks,
Michael Mrozek

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