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* [PATCH] radix tree test suite: fix mapshift build target
@ 2018-03-08 16:55 ` Ross Zwisler
  0 siblings, 0 replies; 5+ messages in thread
From: Ross Zwisler @ 2018-03-08 16:55 UTC (permalink / raw)
  To: Matthew Wilcox, linux-nvdimm, linux-kernel

The following commit

  commit c6ce3e2fe3da ("radix tree test suite: Add config option for map
  shift")

Introduced a phony makefile target called 'mapshift' that ends up
generating the file generated/map-shift.h.  This phony target was then
added as a dependency of the top level 'targets' build target, which is
what is run when you go to tools/testing/radix-tree and just type 'make'.

Unfortunately, this phony target doesn't actually work as a dependency, so
you end up getting:

$ make
make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'.  Stop.
make: *** Waiting for unfinished jobs....

Fix this by making the file generated/map-shift.h our real makefile target,
and add this a dependency of the top level build target.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---
 tools/testing/radix-tree/Makefile | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index fa7ee369b3c9..db66f8a0d4be 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -17,7 +17,7 @@ ifeq ($(BUILD), 32)
 	LDFLAGS += -m32
 endif
 
-targets: mapshift $(TARGETS)
+targets: generated/map-shift.h $(TARGETS)
 
 main:	$(OFILES)
 
@@ -42,9 +42,7 @@ radix-tree.c: ../../../lib/radix-tree.c
 idr.c: ../../../lib/idr.c
 	sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
 
-.PHONY: mapshift
-
-mapshift:
+generated/map-shift.h:
 	@if ! grep -qws $(SHIFT) generated/map-shift.h; then		\
 		echo "#define RADIX_TREE_MAP_SHIFT $(SHIFT)" >		\
 				generated/map-shift.h;			\
-- 
2.14.3

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^ permalink raw reply related	[flat|nested] 5+ messages in thread
* [PATCH] radix tree test suite: fix mapshift build target
@ 2018-03-08 16:55 ` Ross Zwisler
  0 siblings, 0 replies; 5+ messages in thread
From: Ross Zwisler @ 2018-03-08 16:55 UTC (permalink / raw)
  To: Matthew Wilcox, linux-nvdimm, linux-kernel; +Cc: Ross Zwisler

The following commit

  commit c6ce3e2fe3da ("radix tree test suite: Add config option for map
  shift")

Introduced a phony makefile target called 'mapshift' that ends up
generating the file generated/map-shift.h.  This phony target was then
added as a dependency of the top level 'targets' build target, which is
what is run when you go to tools/testing/radix-tree and just type 'make'.

Unfortunately, this phony target doesn't actually work as a dependency, so
you end up getting:

$ make
make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'.  Stop.
make: *** Waiting for unfinished jobs....

Fix this by making the file generated/map-shift.h our real makefile target,
and add this a dependency of the top level build target.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---
 tools/testing/radix-tree/Makefile | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index fa7ee369b3c9..db66f8a0d4be 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -17,7 +17,7 @@ ifeq ($(BUILD), 32)
 	LDFLAGS += -m32
 endif
 
-targets: mapshift $(TARGETS)
+targets: generated/map-shift.h $(TARGETS)
 
 main:	$(OFILES)
 
@@ -42,9 +42,7 @@ radix-tree.c: ../../../lib/radix-tree.c
 idr.c: ../../../lib/idr.c
 	sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
 
-.PHONY: mapshift
-
-mapshift:
+generated/map-shift.h:
 	@if ! grep -qws $(SHIFT) generated/map-shift.h; then		\
 		echo "#define RADIX_TREE_MAP_SHIFT $(SHIFT)" >		\
 				generated/map-shift.h;			\
-- 
2.14.3

^ permalink raw reply related	[flat|nested] 5+ messages in thread
* Re: [PATCH] radix tree test suite: fix mapshift build target
  2018-04-12 21:15 ` Andrew Morton
@ 2018-04-12 21:19   ` Matthew Wilcox
  0 siblings, 0 replies; 5+ messages in thread
From: Matthew Wilcox @ 2018-04-12 21:19 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Ross Zwisler, Matthew Wilcox, LKML, Linux MM, linux-fsdevel,
	Ryusuke Konishi, linux-nilfs

On Thu, Apr 12, 2018 at 02:15:43PM -0700, Andrew Morton wrote:
> On Thu, 12 Apr 2018 15:05:18 -0600 Ross Zwisler <ross.zwisler@linux.intel.com> wrote:
> 
> > The following commit
> > 
> >   commit c6ce3e2fe3da ("radix tree test suite: Add config option for map
> >   shift")
> > 
> > Introduced a phony makefile target called 'mapshift' that ends up
> > generating the file generated/map-shift.h.  This phony target was then
> > added as a dependency of the top level 'targets' build target, which is
> > what is run when you go to tools/testing/radix-tree and just type 'make'.
> > 
> > Unfortunately, this phony target doesn't actually work as a dependency, so
> > you end up getting:
> > 
> > $ make
> > make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'.  Stop.
> > make: *** Waiting for unfinished jobs....
> > 
> > Fix this by making the file generated/map-shift.h our real makefile target,
> > and add this a dependency of the top level build target.
> 
> I still get
> 
> akpm3:/usr/src/25/tools/testing/radix-tree> make
> cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address   -c -o main.o main.c
> In file included from ./linux/../../../../include/linux/radix-tree.h:28:0,
>                  from ./linux/radix-tree.h:6,
>                  from main.c:10:
> ./linux/rcupdate.h:5:10: fatal error: urcu.h: No such file or directory

apt-get install liburcu-dev

>  #include <urcu.h>
> 
> 
> lots of breakage here :(
> 

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: [PATCH] radix tree test suite: fix mapshift build target
  2018-04-12 21:05 Ross Zwisler
@ 2018-04-12 21:15 ` Andrew Morton
  2018-04-12 21:19   ` Matthew Wilcox
  0 siblings, 1 reply; 5+ messages in thread
From: Andrew Morton @ 2018-04-12 21:15 UTC (permalink / raw)
  To: Ross Zwisler
  Cc: Matthew Wilcox, LKML, Linux MM, linux-fsdevel, Ryusuke Konishi,
	linux-nilfs

On Thu, 12 Apr 2018 15:05:18 -0600 Ross Zwisler <ross.zwisler@linux.intel.com> wrote:

> The following commit
> 
>   commit c6ce3e2fe3da ("radix tree test suite: Add config option for map
>   shift")
> 
> Introduced a phony makefile target called 'mapshift' that ends up
> generating the file generated/map-shift.h.  This phony target was then
> added as a dependency of the top level 'targets' build target, which is
> what is run when you go to tools/testing/radix-tree and just type 'make'.
> 
> Unfortunately, this phony target doesn't actually work as a dependency, so
> you end up getting:
> 
> $ make
> make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'.  Stop.
> make: *** Waiting for unfinished jobs....
> 
> Fix this by making the file generated/map-shift.h our real makefile target,
> and add this a dependency of the top level build target.

I still get

akpm3:/usr/src/25/tools/testing/radix-tree> make
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address   -c -o main.o main.c
In file included from ./linux/../../../../include/linux/radix-tree.h:28:0,
                 from ./linux/radix-tree.h:6,
                 from main.c:10:
./linux/rcupdate.h:5:10: fatal error: urcu.h: No such file or directory
 #include <urcu.h>


lots of breakage here :(

^ permalink raw reply	[flat|nested] 5+ messages in thread
* [PATCH] radix tree test suite: fix mapshift build target
@ 2018-04-12 21:05 Ross Zwisler
  2018-04-12 21:15 ` Andrew Morton
  0 siblings, 1 reply; 5+ messages in thread
From: Ross Zwisler @ 2018-04-12 21:05 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Ross Zwisler, Matthew Wilcox, LKML, Linux MM, linux-fsdevel,
	Ryusuke Konishi, linux-nilfs

The following commit

  commit c6ce3e2fe3da ("radix tree test suite: Add config option for map
  shift")

Introduced a phony makefile target called 'mapshift' that ends up
generating the file generated/map-shift.h.  This phony target was then
added as a dependency of the top level 'targets' build target, which is
what is run when you go to tools/testing/radix-tree and just type 'make'.

Unfortunately, this phony target doesn't actually work as a dependency, so
you end up getting:

$ make
make: *** No rule to make target 'generated/map-shift.h', needed by 'main.o'.  Stop.
make: *** Waiting for unfinished jobs....

Fix this by making the file generated/map-shift.h our real makefile target,
and add this a dependency of the top level build target.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---

This allows the radix tree test suite that shipped with v4.16 build and
run successfully.

The radix tree test suite in the current linux/master during the v4.17
merge window is broken, as I've reported here:

https://marc.info/?l=linux-fsdevel&m=152356678901014&w=2

But this patch is necessary to even get to that breakage.

I've sent this to Matthew twice with no response, so Andrew, I'm trying
you next.

---
 tools/testing/radix-tree/Makefile | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index fa7ee369b3c9..db66f8a0d4be 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -17,7 +17,7 @@ ifeq ($(BUILD), 32)
 	LDFLAGS += -m32
 endif
 
-targets: mapshift $(TARGETS)
+targets: generated/map-shift.h $(TARGETS)
 
 main:	$(OFILES)
 
@@ -42,9 +42,7 @@ radix-tree.c: ../../../lib/radix-tree.c
 idr.c: ../../../lib/idr.c
 	sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
 
-.PHONY: mapshift
-
-mapshift:
+generated/map-shift.h:
 	@if ! grep -qws $(SHIFT) generated/map-shift.h; then		\
 		echo "#define RADIX_TREE_MAP_SHIFT $(SHIFT)" >		\
 				generated/map-shift.h;			\
-- 
2.14.3

^ permalink raw reply related	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-04-12 21:19 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-08 16:55 [PATCH] radix tree test suite: fix mapshift build target Ross Zwisler
2018-03-08 16:55 ` Ross Zwisler
2018-04-12 21:05 Ross Zwisler
2018-04-12 21:15 ` Andrew Morton
2018-04-12 21:19   ` Matthew Wilcox

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