riscv: lds: define RUNTIME_DISCARD_EXIT
riscv discards .exit.* sections at run-time but doesn't define RUNTIME_DISCARD_EXIT. However, the .exit.* sections are still allocated and kept even if the generic DISCARDS would discard the sections due to missing RUNTIME_DISCARD_EXIT, because the DISCARD sits at the end of the linker script. Add the missing RUNTIME_DISCARD_EXIT define so that it still works if we move DISCARD up or even at the beginning of the linker script. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Suggested-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230119155417.2600-2-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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@ -5,6 +5,7 @@
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*/
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#define RO_EXCEPTION_TABLE_ALIGN 4
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#define RUNTIME_DISCARD_EXIT
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#ifdef CONFIG_XIP_KERNEL
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#include "vmlinux-xip.lds.S"
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