The arm64 linker script doesn't use the PAGE_ALIGNED_DATA macro which
leads to a ".data..page_aligned" section being placed between the end
of .data and start of .bss:
% readelf -e vmlinux
...
Section to Segment mapping:
Segment Sections...
00 .head.text .text .text.init .rodata __ksymtab __ksymtab_gpl \
__ksymtab_strings __param __modver __ex_table .notes \
.init.text .init.data .data..percpu .data .data..page_aligned .bss
This causes problems for the EFI stub which may have to relocate the
kernel image based on stext and _edata symbols.
This patch adds PAGE_ALIGNED_DATA() to the linker script inside the
the .data section.
Signed-off-by: Mark Salter <[email protected]>
---
arch/arm64/kernel/vmlinux.lds.S | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index f8ab9d8..e441556 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -110,6 +110,7 @@ SECTIONS
*/
INIT_TASK_DATA(THREAD_SIZE)
NOSAVE_DATA
+ PAGE_ALIGNED_DATA(PAGE_SIZE)
CACHELINE_ALIGNED_DATA(64)
READ_MOSTLY_DATA(64)
--
1.8.3.1
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