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authorKees Cook <keescook@chromium.org>2020-09-02 05:53:45 +0300
committerIngo Molnar <mingo@kernel.org>2020-09-03 11:28:35 +0300
commit4409d2f8dfe7d5088567d4ba00133f876ee586c7 (patch)
tree5617637e2ac321f536ab3690c530f7a2e2761171 /arch/arm
parent5a17850e251a55bba6d65aefbfeacfa9888cd2cd (diff)
downloadlinux-4409d2f8dfe7d5088567d4ba00133f876ee586c7.tar.xz
arm/boot: Warn on orphan section placement
We don't want to depend on the linker's orphan section placement heuristics as these can vary between linkers, and may change between versions. All sections need to be explicitly handled in the linker script. With all sections now handled, enable orphan section warning. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20200902025347.2504702-4-keescook@chromium.org
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/compressed/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index b1147b7f2c8d..58028abd05d9 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -123,6 +123,8 @@ endif
LDFLAGS_vmlinux += --no-undefined
# Delete all temporary local symbols
LDFLAGS_vmlinux += -X
+# Report orphan sections
+LDFLAGS_vmlinux += $(call ld-option, --orphan-handling=warn)
# Next argument is a linker script
LDFLAGS_vmlinux += -T