From 91c617d7a3af3b599ef97c48253a3f5ebb6cdadd Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 19 Feb 2016 16:41:55 +0100 Subject: [PATCH] ARM: 8536/1: mm: hide __start_rodata_section_aligned for non-debug builds The __start_rodata_section_aligned is only referenced by the DEBUG_RODATA code, which is only used when the MMU is enabled, but the definition fails on !MMU builds: arch/arm/kernel/vmlinux.lds:702: undefined symbol `SECTION_SHIFT' referenced in expression This hides the symbol whenever DEBUG_RODATA is disabled. Signed-off-by: Arnd Bergmann Fixes: 64ac2e74f0b2 ("ARM: 8502/1: mm: mark section-aligned portion of rodata NX") Acked-by: Ard Biesheuvel Signed-off-by: Russell King --- arch/arm/kernel/vmlinux.lds.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index fdca231..96de892 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -317,12 +317,14 @@ SECTIONS STABS_DEBUG } +#ifdef CONFIG_DEBUG_RODATA /* * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will * be the first section-aligned location after __start_rodata. Otherwise, * it will be equal to __start_rodata. */ __start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT); +#endif /* * These must never be empty -- 2.7.4