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authorGreg Hackmann <ghackmann@android.com>2018-06-27 12:46:14 -0700
committerCatalin Marinas <catalin.marinas@arm.com>2018-07-05 19:12:48 +0100
commit1a381d4a0a9a0f999a13faaba22bf6b3fc80dcb9 (patch)
parent2893af07e507e993ad71ca6d66a7b02be741571c (diff)
arm64: remove no-op -p linker flag
Linking the ARM64 defconfig kernel with LLVM lld fails with the error: ld.lld: error: unknown argument: -p Makefile:1015: recipe for target 'vmlinux' failed Without this flag, the ARM64 defconfig kernel successfully links with lld and boots on Dragonboard 410c. After digging through binutils source and changelogs, it turns out that -p is only relevant to ancient binutils installations targeting 32-bit ARM. binutils accepts -p for AArch64 too, but it's always been undocumented and silently ignored. A comment in ld/emultempl/aarch64elf.em explains that it's "Only here for backwards compatibility". Since this flag is a no-op on ARM64, we can safely drop it. Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Greg Hackmann <ghackmann@google.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 48158c550110..7976d2d242fa 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -10,7 +10,7 @@
# Copyright (C) 1995-2001 by Russell King
-LDFLAGS_vmlinux :=-p --no-undefined -X
+LDFLAGS_vmlinux :=--no-undefined -X