On Mon, Jul 16, 2018 at 10:07:10AM -0600, Ross Zwisler wrote:
On Sun, Jul 15, 2018 at 04:00:52PM -0700, Matthew Wilcox wrote:
> On Thu, May 03, 2018 at 01:24:26PM -0600, Ross Zwisler wrote:
> > 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.
>
> This commit breaks typing 'make SHIFT=6'. It doesn't rebuild the
> test suite any more. If I revert this patch, it works. Also, I can't
> reproduce the problem you're reporting here. So ... how do I reproduce
> it? Otherwise, I'm just going to revert this patch since it regresses
> a feature I find useful.
The test suite builds fine for me in v4.17. From a completely clean tree, in
tools/testing/radix-tree:
$ make
sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline
//' < ../../../lib/radix-tree.c > radix-tree.c
sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline
//' < ../../../lib/idr.c > idr.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o main.o
main.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o linux.o
linux.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o test.o
test.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
find_bit.o ../../lib/find_bit.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
regression1.o regression1.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
regression2.o regression2.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
regression3.o regression3.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
tag_check.o tag_check.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
multiorder.o multiorder.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
idr-test.o idr-test.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
iteration_check.o iteration_check.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
benchmark.o benchmark.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o idr.o
idr.c
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
radix-tree.o radix-tree.c
cc -fsanitize=address multiorder.o radix-tree.o idr.o linux.o test.o find_bit.o
-lpthread -lurcu -o multiorder
cc -fsanitize=address main.o radix-tree.o idr.o linux.o test.o find_bit.o
regression1.o regression2.o regression3.o tag_check.o multiorder.o idr-test.o
iteration_check.o benchmark.o -lpthread -lurcu -o main
cc -fsanitize=address idr-test.o radix-tree.o idr.o linux.o test.o find_bit.o
-lpthread -lurcu -o idr-test
and you can successfully run the radix tree test suite by running 'main'.
With the above mentioned commit reverted, this build fails:
$ make
make: *** No rule to make target 'generated/map-shift.h', needed by
'main.o'. Stop.
make: *** Waiting for unfinished jobs....
OK ... what version of make are you using? Because this works fine for me:
$ git clone linux clean
$ cd clean
$ git checkout v4.17
$ cd tools/testing/radix-tree/
$ git revert 8d9fa88edd5e360b71765feeadb915d4066c9684
$ make
$ make --version
GNU Make 4.1
Built for x86_64-pc-linux-gnu
It's Debian's Version: 4.1-9.1
If you want generated/map-shift.h to be rebuilt each time you run
'make' so
that it can take a new SHIFT argument, that's fine, but let's not make users
run 'make mapshift' before an actual 'make' will work, which is where
we're at
with v4.17 with my commit reverted.
I don't want it to be rebuilt, I want it to be checked before each
build, regenerated if SHIFT has changed, and everything to rebuild if
it has changed.
Incidentally, in the current linux/master the radix tree test suite
again
fails to build:
cc -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address -c -o
radix-tree.o radix-tree.c
idr.c:7:10: fatal error: linux/xarray.h: No such file or directory
#include <linux/xarray.h>
^~~~~~~~~~~~~~~~
compilation terminated.
make: *** [<builtin>: idr.o] Error 1
Can you look into this?
Ah ... Andrew broke it fixing something else ;-) The first commit in
my xarray branch fixes it -- looks like I tested my own commits but not
the commit I based on ;-)
diff --git a/tools/testing/radix-tree/linux/xarray.h
b/tools/testing/radix-tree/linux/xarray.h
new file mode 100644
index 000000000000..df3812cda376
--- /dev/null
+++ b/tools/testing/radix-tree/linux/xarray.h
@@ -0,0 +1,2 @@
+#include "generated/map-shift.h"
+#include "../../../../include/linux/xarray.h"
0-day folks, would it be possible for you to add a radix tree build
& test
runs to your automated tests? We would really appreciate any help in reducing
this kind of breakage, which seems to happen pretty often.
Yeah, that would be good.