From: Nathan Chancellor nathan@kernel.org
This patch is for linux-6.3.y only, it has no direct mainline equivalent.
LLVM 17 will now use the GOT for extern weak symbols when using the medany model, which causes a linker orphan section warning on linux-6.3.y:
ld.lld: warning: <internal>:(.got) is being placed in '.got'
This is not an issue in mainline because handling of the .got section was added by commit 39b33072941f ("riscv: Introduce CONFIG_RELOCATABLE") and further extended by commit 26e7aacb83df ("riscv: Allow to downgrade paging mode from the command line") in 6.4-rc1. Neither of these changes are suitable for stable, so add explicit handling of the .got section in a standalone change to align 6.3 and mainline, which addresses the warning.
This is only an issue for 6.3 because commit f4b71bff8d85 ("riscv: select ARCH_WANT_LD_ORPHAN_WARN for !XIP_KERNEL") landed in 6.3-rc1, so earlier releases will not see this warning because it will not be enabled.
Closes: https://github.com/ClangBuiltLinux/linux/issues/1865 Link: https://github.com/llvm/llvm-project/commit/a178ba9fbd0a27057dc2fa4cb53c76ca... Signed-off-by: Nathan Chancellor nathan@kernel.org Reviewed-by: Conor Dooley conor.dooley@microchip.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/riscv/kernel/vmlinux.lds.S | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/riscv/kernel/vmlinux.lds.S +++ b/arch/riscv/kernel/vmlinux.lds.S @@ -129,6 +129,8 @@ SECTIONS *(.sdata*) }
+ .got : { *(.got*) } + #ifdef CONFIG_EFI .pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); } __pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);