* [Patch 1/3] dt: OF_UNITTEST make dependency broken, framework fixes
@ 2015-03-12 5:33 Frank Rowand
2015-03-12 5:37 ` [Patch 3/3] dt: OF_UNITTEST make dependency broken, fix unittest.c after move Frank Rowand
0 siblings, 1 reply; 2+ messages in thread
From: Frank Rowand @ 2015-03-12 5:33 UTC (permalink / raw)
To: Grant Likely, Rob Herring, Michal Marek, Linux Kernel list,
devicetree, linux-kbuild
From: Frank Rowand <frank.rowand@sonymobile.com>
This 3 patch series is not bisectable. If CONFIG_OF_UNITTEST=y then the kernel
will not build with just patch 1 or just patches 1 and 2 applied.
If CONFIG_OF_UNITTEST=y then a kernel image make will always cause .version to
be incremented, even if there are not source changes. This is caused by
a lack of dependency tracking and checking for
drivers/of/unittest-data/testcases.dtb.o. Fixing the problem was made more
complicated by the fact that testcases.dtb.o was linked into ../of_unittest.o.
Patch 1 modifies makefiles to move of_unittest.c into unittest-data/ and
creates missing dependency tracking for testcases.dtb.o.
Patch 2 will move of_unittest.c into unittest-data/
Patch 3 will fix an of_unittest.c include path to account for the move.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
---
drivers/of/Makefile | 4 ++--
drivers/of/unittest-data/Makefile | 9 +++++++++
scripts/Makefile.lib | 5 +++--
3 files changed, 14 insertions(+), 4 deletions(-)
Index: b/drivers/of/Makefile
===================================================================
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -6,8 +6,6 @@ obj-$(CONFIG_OF_PROMTREE) += pdt.o
obj-$(CONFIG_OF_ADDRESS) += address.o
obj-$(CONFIG_OF_IRQ) += irq.o
obj-$(CONFIG_OF_NET) += of_net.o
-obj-$(CONFIG_OF_UNITTEST) += of_unittest.o
-of_unittest-objs := unittest.o unittest-data/testcases.dtb.o
obj-$(CONFIG_OF_MDIO) += of_mdio.o
obj-$(CONFIG_OF_PCI) += of_pci.o
obj-$(CONFIG_OF_PCI_IRQ) += of_pci_irq.o
@@ -16,5 +14,7 @@ obj-$(CONFIG_OF_RESERVED_MEM) += of_rese
obj-$(CONFIG_OF_RESOLVE) += resolver.o
obj-$(CONFIG_OF_OVERLAY) += overlay.o
+obj-$(CONFIG_OF_UNITTEST) += unittest-data/
+
CFLAGS_fdt.o = -I$(src)/../../scripts/dtc/libfdt
CFLAGS_fdt_address.o = -I$(src)/../../scripts/dtc/libfdt
Index: b/scripts/Makefile.lib
===================================================================
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -276,10 +276,11 @@ cmd_dt_S_dtb= \
echo '__dtb_$(*F)_end:'; \
echo '.global __dtb_$(*F)_end'; \
echo '.balign STRUCT_ALIGNMENT'; \
-) > $@
+) > $@ ; \
+ touch $(depfile)
$(obj)/%.dtb.S: $(obj)/%.dtb
- $(call cmd,dt_S_dtb)
+ $(call if_changed_dep,dt_S_dtb)
quiet_cmd_dtc = DTC $@
cmd_dtc = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
Index: b/drivers/of/unittest-data/Makefile
===================================================================
--- /dev/null
+++ b/drivers/of/unittest-data/Makefile
@@ -0,0 +1,9 @@
+
+obj-$(CONFIG_OF_UNITTEST) += of_unittest.o
+of_unittest-objs := unittest.o testcases.dtb.o
+
+targets += testcases.dtb testcases.dtb.S
+
+.SECONDARY: \
+ $(obj)/testcases.dtb.S \
+ $(obj)/testcases.dtb
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Patch 3/3] dt: OF_UNITTEST make dependency broken, fix unittest.c after move
2015-03-12 5:33 [Patch 1/3] dt: OF_UNITTEST make dependency broken, framework fixes Frank Rowand
@ 2015-03-12 5:37 ` Frank Rowand
0 siblings, 0 replies; 2+ messages in thread
From: Frank Rowand @ 2015-03-12 5:37 UTC (permalink / raw)
To: frowand.list, Grant Likely, Rob Herring, Michal Marek,
Linux Kernel list, devicetree, linux-kbuild
From: Frank Rowand <frank.rowand@sonymobile.com>
Fix an of_unittest.c include path to account for the move of
unittest.c into unittest-data/.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
---
drivers/of/unittest-data/unittest.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: b/drivers/of/unittest-data/unittest.c
===================================================================
--- a/drivers/of/unittest-data/unittest.c
+++ b/drivers/of/unittest-data/unittest.c
@@ -23,7 +23,7 @@
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
-#include "of_private.h"
+#include "../of_private.h"
static struct selftest_results {
int passed;
^ permalink raw reply [flat|nested] 2+ messages in thread
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