From: Sam Ravnborg <sam@mars.(none)>
Date: Thu, 14 Jul 2005 20:19:08 +0000 (+0000)
Subject: kbuild: Add target debug_kallsyms
X-Git-Tag: v2.6.14-rc1~750^2~26
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33bc25eae40c100238a5abe8472cef0cd40226f1;p=linux-2.6

kbuild: Add target debug_kallsyms

From: Keith Owens <kaos@ocs.com.au>

Make it easier to generate maps for debugging kallsyms problems.
debug_kallsyms is only a debugging target so no help or silent mode.

Signed-off-by: Keith Owens <kaos@ocs.com.au>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---

diff --git a/Makefile b/Makefile
index 206b2833ee..5d0ecf11bf 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