[PATCH v2 02/29] asm-generic: add .data.rel.ro sections to __ro_after_init
Ard Biesheuvel
ard.biesheuvel at linaro.org
Sun Sep 3 05:07:30 PDT 2017
When running in PIC mode, the compiler will emit const structures
containing runtime relocatable quantities into .data.rel.ro.* sections,
so that the linker can be smart about placing them together in a segment
that is read-write initially, and is remapped read-only afterwards. This
is exactly what __ro_after_init aims to provide, so move these sections
together.
Acked-by: Arnd Bergmann <arnd at arndb.de>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
---
include/asm-generic/vmlinux.lds.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index da0be9a8d1de..d16537b0b102 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -261,7 +261,7 @@
#ifndef RO_AFTER_INIT_DATA
#define RO_AFTER_INIT_DATA \
VMLINUX_SYMBOL(__start_ro_after_init) = .; \
- *(.data..ro_after_init) \
+ *(.data..ro_after_init .data.rel.ro.*) \
VMLINUX_SYMBOL(__end_ro_after_init) = .;
#endif
--
2.11.0
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