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riscv: vmlinux.lds.S: Explicitly handle '.got' section

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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 39b3307294 ("riscv: Introduce CONFIG_RELOCATABLE")
and further extended by commit 26e7aacb83 ("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 f4b71bff8d ("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: a178ba9fbd
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>
This commit is contained in:
Nathan Chancellor
2023-06-05 14:15:08 -07:00
committed by Greg Kroah-Hartman
parent 69ebe82c73
commit e6d1562dd4
1 changed files with 2 additions and 0 deletions
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2
arch/riscv/kernel/vmlinux.lds.S
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@@ -129,6 +129,8 @@ SECTIONS
*(.sdata*) *(.sdata*)
} }
.got : { *(.got*) }
#ifdef CONFIG_EFI #ifdef CONFIG_EFI
.pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); } .pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); }
__pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end); __pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);