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powerpc/vdso: Don't discard rela sections

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[ Upstream commit 6114139c3b ]

After building the VDSO, there is a verification that it contains
no dynamic relocation, see commit aff69273af ("vdso: Improve
cmd_vdso_check to check all dynamic relocations").

This verification uses readelf -r and doesn't work if rela sections
are discarded.

Fixes: 8ad57add77 ("powerpc/build: vdso linker warning for orphan sections")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/45c3e6fc76cad05ad2cac0f5b5dfb4fae86dc9d6.1724153239.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe Leroy 2024-08-20 13:28:07 +02:00 committed by Greg Kroah-Hartman
parent 547acc20e5
commit af4d5630d9
2 changed files with 5 additions and 3 deletions
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4
arch/powerpc/kernel/vdso/vdso32.lds.S
View file

@ -74,6 +74,8 @@ SECTIONS
.got : { *(.got) } :text
.plt : { *(.plt) }
.rela.dyn : { *(.rela .rela*) }
_end = .;
__end = .;
PROVIDE(end = .);
@ -87,7 +89,7 @@ SECTIONS
*(.branch_lt)
*(.data .data.* .gnu.linkonce.d.* .sdata*)
*(.bss .sbss .dynbss .dynsbss)
*(.got1 .glink .iplt .rela*)
*(.got1 .glink .iplt)
}
}

4
arch/powerpc/kernel/vdso/vdso64.lds.S
View file

@ -69,7 +69,7 @@ SECTIONS
.eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
.eh_frame : { KEEP (*(.eh_frame)) } :text
.gcc_except_table : { *(.gcc_except_table) }
.rela.dyn ALIGN(8) : { *(.rela.dyn) }
.rela.dyn ALIGN(8) : { *(.rela .rela*) }
.got ALIGN(8) : { *(.got .toc) }
@ -86,7 +86,7 @@ SECTIONS
*(.data .data.* .gnu.linkonce.d.* .sdata*)
*(.bss .sbss .dynbss .dynsbss)
*(.opd)
*(.glink .iplt .plt .rela*)
*(.glink .iplt .plt)
}
}