[PATCH 1/9] powerpc/vdso: Don't discard rela sections

[Christophe Leroy]

After building the VDSO, there is a verification that it contains
no dynamic relocation, see commit aff69273af61 ("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: 8ad57add77d3 ("powerpc/build: vdso linker warning for orphan sections")
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
 arch/powerpc/kernel/vdso/vdso32.lds.S | 4 +++-
 arch/powerpc/kernel/vdso/vdso64.lds.S | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/vdso/vdso32.lds.S 
b/arch/powerpc/kernel/vdso/vdso32.lds.S
index 426e1ccc6971..8f57107000a2 100644
--- a/arch/powerpc/kernel/vdso/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso/vdso32.lds.S
@@ -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)
        }
 }
 
diff --git a/arch/powerpc/kernel/vdso/vdso64.lds.S 
b/arch/powerpc/kernel/vdso/vdso64.lds.S
index bda6c8cdd459..400819258c06 100644
--- a/arch/powerpc/kernel/vdso/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso/vdso64.lds.S
@@ -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)
        }
 }
 
-- 
2.44.0