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-rw-r--r--Makefile10
1 files changed, 10 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 206b2833ee6b..5d0ecf11bfa0 100644
--- a/Makefile
+++ b/Makefile
@@ -722,6 +722,16 @@ quiet_cmd_kallsyms = KSYM $@
# Needs to visit scripts/ before $(KALLSYMS) can be used.
$(KALLSYMS): scripts ;
+# Generate some data for debugging strange kallsyms problems
+debug_kallsyms: .tmp_map$(last_kallsyms)
+
+.tmp_map%: .tmp_vmlinux% FORCE
+ ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@
+
+.tmp_map3: .tmp_map2
+
+.tmp_map2: .tmp_map1
+
endif # ifdef CONFIG_KALLSYMS
# vmlinux image - including updated kernel symbols