[RFC v4 15/18] arm64: kernel: Add exception on kuser32 to prevent stack analysis
From: Raphael Gault <hidden>
Date: 2019-08-16 12:25:06
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
kuser32 being used for compatibility, it contains a32 instructions which are not recognised by objtool when trying to analyse arm64 object files. Thus, we add an exception to skip validation on this particular file. Signed-off-by: Raphael Gault <redacted> --- arch/arm64/kernel/Makefile | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 478491f07b4f..1239c7da4c02 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile@@ -33,6 +33,9 @@ ifneq ($(CONFIG_COMPAT_VDSO), y) obj-$(CONFIG_COMPAT) += sigreturn32.o endif obj-$(CONFIG_KUSER_HELPERS) += kuser32.o + +OBJECT_FILES_NON_STANDARD_kuser32.o := y + obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_ARM64_MODULE_PLTS) += module-plts.o
--
2.17.1
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