The patch titled
Subject: x86/purgatory: add missing FORCE to Makefile target
has been removed from the -mm tree. Its filename was
x86-purgatory-add-missing-force-to-makefile-target.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Philipp Rudo <prudo@xxxxxxxxxxxxx>
Subject: x86/purgatory: add missing FORCE to Makefile target
- Build the kernel without the fix
- Add some flag to the purgatories KBUILD_CFLAGS,I used
-fno-asynchronous-unwind-tables
- Re-build the kernel
When you look at makes output you see that sha256.o is not re-build in the
last step. Also readelf -S still shows the .eh_frame section for
sha256.o.
With the fix sha256.o is rebuilt in the last step.
Without FORCE make does not detect changes only made to the command line
options. So object files might not be re-built even when they should be.
Fix this by adding FORCE where it is missing.
Link: http://lkml.kernel.org/r/20180704110044.29279-2-prudo@xxxxxxxxxxxxx
Fixes: df6f2801f511 ("kernel/kexec_file.c: move purgatories sha256 to common code")
Signed-off-by: Philipp Rudo <prudo@xxxxxxxxxxxxx>
Acked-by: Dave Young <dyoung@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> [4.17+]
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/purgatory/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/purgatory/Makefile~x86-purgatory-add-missing-force-to-makefile-target arch/x86/purgatory/Makefile
--- a/arch/x86/purgatory/Makefile~x86-purgatory-add-missing-force-to-makefile-target
+++ a/arch/x86/purgatory/Makefile
@@ -6,7 +6,7 @@ purgatory-y := purgatory.o stack.o setup
targets += $(purgatory-y)
PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
-$(obj)/sha256.o: $(srctree)/lib/sha256.c
+$(obj)/sha256.o: $(srctree)/lib/sha256.c FORCE
$(call if_changed_rule,cc_o_c)
LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
_
Patches currently in -mm which might be from prudo@xxxxxxxxxxxxx are
