Commit 83109d5d authored by Kees Cook's avatar Kees Cook Committed by Ingo Molnar

x86/build: 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.

Now that all sections are explicitly handled, enable orphan section
warnings.
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20200902025347.2504702-5-keescook@chromium.org
parent 4409d2f8
...@@ -209,6 +209,10 @@ ifdef CONFIG_X86_64 ...@@ -209,6 +209,10 @@ ifdef CONFIG_X86_64
LDFLAGS_vmlinux += -z max-page-size=0x200000 LDFLAGS_vmlinux += -z max-page-size=0x200000
endif endif
# We never want expected sections to be placed heuristically by the
# linker. All sections should be explicitly named in the linker script.
LDFLAGS_vmlinux += $(call ld-option, --orphan-handling=warn)
archscripts: scripts_basic archscripts: scripts_basic
$(Q)$(MAKE) $(build)=arch/x86/tools relocs $(Q)$(MAKE) $(build)=arch/x86/tools relocs
......
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