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-rw-r--r--scripts/Makefile.build44
1 files changed, 22 insertions, 22 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index e1bc19070..0d1ca5bf4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -152,11 +152,11 @@ cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $<
$(obj)/%.s: $(src)/%.c FORCE
$(call if_changed_dep,cc_s_c)
-quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@
-cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
+quiet_cmd_cpp_i_c = CPP $(quiet_modtag) $@
+cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
$(obj)/%.i: $(src)/%.c FORCE
- $(call if_changed_dep,cc_i_c)
+ $(call if_changed_dep,cpp_i_c)
cmd_gensymtypes = \
$(CPP) -D__GENKSYMS__ $(c_flags) $< | \
@@ -266,26 +266,24 @@ endif # CONFIG_STACK_VALIDATION
define rule_cc_o_c
$(call echo-cmd,checksrc) $(cmd_checksrc) \
- $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \
+ $(call cmd_and_fixdep,cc_o_c) \
$(cmd_modversions) \
- $(cmd_objtool) \
- $(call echo-cmd,record_mcount) \
- $(cmd_record_mcount) \
- scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
- $(dot-target).tmp; \
- rm -f $(depfile); \
- mv -f $(dot-target).tmp $(dot-target).cmd
+ $(cmd_objtool) \
+ $(call echo-cmd,record_mcount) $(cmd_record_mcount)
endef
define rule_as_o_S
- $(call echo-cmd,as_o_S) $(cmd_as_o_S); \
- $(cmd_objtool) \
- scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,as_o_S)' > \
- $(dot-target).tmp; \
- rm -f $(depfile); \
- mv -f $(dot-target).tmp $(dot-target).cmd
+ $(call cmd_and_fixdep,as_o_S) \
+ $(cmd_objtool)
endef
+# List module undefined symbols (or empty line if not enabled)
+ifdef CONFIG_TRIM_UNUSED_KSYMS
+cmd_undef_syms = $(NM) $@ | sed -n 's/^ \+U //p' | xargs echo
+else
+cmd_undef_syms = echo
+endif
+
# Built-in and composite module parts
$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_obj) FORCE
$(call cmd,force_checksrc)
@@ -296,7 +294,8 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_obj) FORCE
$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_obj) FORCE
$(call cmd,force_checksrc)
$(call if_changed_rule,cc_o_c)
- @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
+ @{ echo $(@:.o=.ko); echo $@; \
+ $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
quiet_cmd_cc_lst_c = MKLST $@
cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
@@ -314,11 +313,11 @@ modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
$(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
-quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
-cmd_as_s_S = $(CPP) $(a_flags) -o $@ $<
+quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
+cmd_cpp_s_S = $(CPP) $(a_flags) -o $@ $<
$(obj)/%.s: $(src)/%.S FORCE
- $(call if_changed_dep,as_s_S)
+ $(call if_changed_dep,cpp_s_S)
quiet_cmd_as_o_S = AS $(quiet_modtag) $@
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
@@ -426,7 +425,8 @@ $(call multi_depend, $(multi-used-y), .o, -objs -y)
$(multi-used-m): FORCE
$(call if_changed,link_multi-m)
- @{ echo $(@:.o=.ko); echo $(link_multi_deps); } > $(MODVERDIR)/$(@F:.o=.mod)
+ @{ echo $(@:.o=.ko); echo $(link_multi_deps); \
+ $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
$(call multi_depend, $(multi-used-m), .o, -objs -y -m)
targets += $(multi-used-y) $(multi-used-m)