From 234f2726089c1b655b0efe975a988ac6fc857b2a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Mon, 6 Oct 2008 23:03:03 -0700
Subject: [PATCH] kbuild: AFTER_LINK

If the make variable AFTER_LINK is set, it is a command line to run
after each final link.  This includes vmlinux itself and vDSO images.

Bugzilla: N/A
Upstream-status: ??

Signed-off-by: Roland McGrath <roland@redhat.com>
---
 arch/arm64/kernel/vdso/Makefile | 3 ++-
 arch/x86/entry/vdso/Makefile    | 5 +++--
 scripts/link-vmlinux.sh         | 4 ++++
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
index b215c712d897..e18cd2a3ea53 100644
--- a/arch/arm64/kernel/vdso/Makefile
+++ b/arch/arm64/kernel/vdso/Makefile
@@ -55,7 +55,8 @@ $(obj-vdso): %.o: %.S FORCE
 
 # Actual build commands
 quiet_cmd_vdsold = VDSOL   $@
-      cmd_vdsold = $(CC) $(c_flags) -Wl,-n -Wl,-T $^ -o $@
+      cmd_vdsold = $(CC) $(c_flags) -Wl,-n -Wl,-T $^ -o $@ \
+				    $(if $(AFTER_LINK),;$(AFTER_LINK))
 quiet_cmd_vdsoas = VDSOA   $@
       cmd_vdsoas = $(CC) $(a_flags) -c -o $@ $<
 
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index c3d7ccd25381..7c03993ea881 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -167,8 +167,9 @@ $(obj)/vdso32.so.dbg: FORCE \
 quiet_cmd_vdso = VDSO    $@
       cmd_vdso = $(LD) -nostdlib -o $@ \
 		       $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
-		       -T $(filter %.lds,$^) $(filter %.o,$^) && \
-		 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
+		       -T $(filter %.lds,$^) $(filter %.o,$^) \
+		$(if $(AFTER_LINK),; $(AFTER_LINK)) && \
+		sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
 
 VDSO_LDFLAGS = -shared $(call ld-option, --hash-style=both) \
 	$(call ld-option, --build-id) $(call ld-option, --eh-frame-hdr) \
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index c8cf45362bd6..ee9c4d8e1ddf 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -112,6 +112,10 @@ vmlinux_link()
 			-lutil -lrt -lpthread
 		rm -f linux
 	fi
+	if [ -n "${AFTER_LINK}" ]; then
+		/usr/lib/rpm/debugedit -b ${RPM_BUILD_DIR} -d /usr/src/debug -i ${2} \
+			> ${2}.id
+	fi
 }
 
 
-- 
2.20.1