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| H A D | utee_syscalls_rv.S | af9ee0e0ed11977217f30ce1c1375639613147cd Wed May 24 16:22:47 UTC 2023 Alvin Chang <alvinga@andestech.com> libutee: riscv: Fix relocation type of function call into __utee_panic()
In RISC-V, "j" instruction has R_RISCV_JAL relocation that can represent
an even signed 21-bit offset (+-1MiB). However, this range is not enough
to be position independent code, and the linker generates linking error.
Fix it by using "tail" instruction which has R_RISCV_CALL_PLT relocation
that the execution can jump to +-2GB location.
Note that we won't return from _utee_panic(), that's why we use "tail"
instead of "call" instruction so that we won't generate redundant return
instruction.
Signed-off-by: Alvin Chang <alvinga@andestech.com>
Acked-by: liushiwei <liushiwei@eswincomputing.com>
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