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-rw-r--r--scripts/Makefile.lib18
1 files changed, 16 insertions, 2 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 0718e39cedda..0a4fdd8bd975 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -123,6 +123,9 @@ ifeq ($(CONFIG_AUTOFDO_CLANG),y)
_c_flags += $(if $(patsubst n%,, \
$(AUTOFDO_PROFILE_$(target-stem).o)$(AUTOFDO_PROFILE)$(is-kernel-object)), \
$(CFLAGS_AUTOFDO_CLANG))
+_rust_flags += $(if $(patsubst n%,, \
+ $(AUTOFDO_PROFILE_$(target-stem).o)$(AUTOFDO_PROFILE)$(is-kernel-object)), \
+ $(RUSTFLAGS_AUTOFDO_CLANG))
endif
#
@@ -187,7 +190,11 @@ objtool-args-$(CONFIG_HAVE_JUMP_LABEL_HACK) += --hacks=jump_label
objtool-args-$(CONFIG_HAVE_NOINSTR_HACK) += --hacks=noinstr
objtool-args-$(CONFIG_MITIGATION_CALL_DEPTH_TRACKING) += --hacks=skylake
objtool-args-$(CONFIG_X86_KERNEL_IBT) += --ibt
-objtool-args-$(CONFIG_FINEIBT) += --cfi
+objtool-args-$(CONFIG_CALL_PADDING) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
+ifdef CONFIG_CALL_PADDING
+objtool-args-$(CONFIG_CFI) += --cfi
+objtool-args-$(CONFIG_FINEIBT) += --fineibt
+endif
objtool-args-$(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL) += --mcount
ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL
objtool-args-$(CONFIG_HAVE_OBJTOOL_NOP_MCOUNT) += --mnop
@@ -200,7 +207,6 @@ objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval
objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
objtool-args-$(or $(CONFIG_GCOV_KERNEL),$(CONFIG_KCOV)) += --no-unreachable
-objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
objtool-args-$(CONFIG_OBJTOOL_WERROR) += --werror
objtool-args = $(objtool-args-y) \
@@ -249,6 +255,13 @@ ifdef CONFIG_LTO_CLANG
cmd_ld_single = $(if $(objtool-enabled)$(is-single-obj-m), ; $(LD) $(ld_flags) -r -o $(tmp-target) $@; mv $(tmp-target) $@)
endif
+ifdef CONFIG_LTO_CLANG_THIN_DIST
+# Save the _c_flags, sliently.
+quiet_cmd_save_c_flags =
+ saved_c_flags = $(_c_flags) $(modkern_cflags)
+ cmd_save_c_flags = printf '\n%s\n' 'saved_c_flags_$@ := $(call escsq,$(saved_c_flags))' >> $(dot-target).cmd
+endif
+
quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< \
$(cmd_ld_single) \
@@ -256,6 +269,7 @@ quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
define rule_cc_o_c
$(call cmd_and_fixdep,cc_o_c)
+ $(call cmd,save_c_flags)
$(call cmd,checksrc)
$(call cmd,checkdoc)
$(call cmd,gen_objtooldep)