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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2016-01-26 09:13:44 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2016-02-24 14:57:27 +0000
commit1e48ef7fcc374051730381a2a05da77eb4eafdb0 (patch)
treef7f7174e996accf28dfdeef5fa79a452e4dbfa41 /arch/arm64/include/asm/elf.h
parent6c94f27ac847ff8ef15b3da5b200574923bd6287 (diff)
arm64: add support for building vmlinux as a relocatable PIE binary
This implements CONFIG_RELOCATABLE, which links the final vmlinux image with a dynamic relocation section, allowing the early boot code to perform a relocation to a different virtual address at runtime. This is a prerequisite for KASLR (CONFIG_RANDOMIZE_BASE). Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/elf.h')
-rw-r--r--arch/arm64/include/asm/elf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 435f55952e1f..24ed037f09fd 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -77,6 +77,8 @@
#define R_AARCH64_MOVW_PREL_G2_NC 292
#define R_AARCH64_MOVW_PREL_G3 293
+#define R_AARCH64_RELATIVE 1027
+
/*
* These are used to set parameters in the core dumps.
*/