From: Eugeniu Rosca <erosca@de.adit-jv.com>
To: David Howells <dhowells@redhat.com>
Cc: <viro@zeniv.linux.org.uk>, <raven@themaw.net>,
<linux-fsdevel@vger.kernel.org>, <linux-api@vger.kernel.org>,
<linux-block@vger.kernel.org>, <keyrings@vger.kernel.org>,
<linux-security-module@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Eugeniu Rosca <erosca@de.adit-jv.com>,
Eugeniu Rosca <roscaeugeniu@gmail.com>
Subject: Re: [PATCH 10/10] Add sample notification program [ver #3]
Date: Thu, 6 Jun 2019 23:21:40 +0200 [thread overview]
Message-ID: <20190606212140.GA25664@vmlxhi-102.adit-jv.com> (raw)
In-Reply-To: <155981421379.17513.13158528501056454772.stgit@warthog.procyon.org.uk>
Hi David,
On Thu, Jun 06, 2019 at 10:43:33AM +0100, David Howells wrote:
[..]
> diff --git a/samples/watch_queue/Makefile b/samples/watch_queue/Makefile
> new file mode 100644
> index 000000000000..42b694430d0f
> --- /dev/null
> +++ b/samples/watch_queue/Makefile
> @@ -0,0 +1,9 @@
> +# List of programs to build
> +hostprogs-y := watch_test
> +
> +# Tell kbuild to always build the programs
> +always := $(hostprogs-y)
> +
> +HOSTCFLAGS_watch_test.o += -I$(objtree)/usr/include
How about arm64? Do you intend to enable cross-compilation?
> +
> +HOSTLOADLIBES_watch_test += -lkeyutils
> diff --git a/samples/watch_queue/watch_test.c b/samples/watch_queue/watch_test.c
> new file mode 100644
> index 000000000000..893a5380f792
> --- /dev/null
> +++ b/samples/watch_queue/watch_test.c
[..]
> + asm ("lfence" : : : "memory" );
[..]
> + asm("mfence" ::: "memory");
FWIW, trying to cross-compile it returned:
aarch64-linux-gnu-gcc -I../../usr/include -I../../include watch_test.c -o watch_test
/tmp/ccDXYynm.s: Assembler messages:
/tmp/ccDXYynm.s:471: Error: unknown mnemonic `lfence' -- `lfence'
/tmp/ccDXYynm.s:568: Error: unknown mnemonic `mfence' -- `mfence'
<builtin>: recipe for target 'watch_test' failed
make: *** [watch_test] Error 1
--
Best Regards,
Eugeniu.
next prev parent reply other threads:[~2019-06-06 21:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-06 9:41 [RFC][PATCH 00/10] Mount, FS, Block and Keyrings notifications [ver #3] David Howells
2019-06-06 9:42 ` [PATCH 01/10] security: Override creds in __fput() with last fputter's creds " David Howells
2019-06-06 14:57 ` Andy Lutomirski
2019-06-06 15:06 ` David Howells
2019-06-06 17:18 ` Andy Lutomirski
2019-06-06 19:09 ` Casey Schaufler
2019-06-06 19:34 ` Andy Lutomirski
2019-06-06 9:42 ` [PATCH 02/10] General notification queue with user mmap()'able ring buffer " David Howells
2019-06-06 9:42 ` [PATCH 03/10] keys: Add a notification facility " David Howells
2019-06-06 9:42 ` [PATCH 04/10] vfs: Add a mount-notification " David Howells
2019-06-06 9:42 ` [PATCH 05/10] vfs: Add superblock notifications " David Howells
2019-06-06 9:42 ` [PATCH 06/10] fsinfo: Export superblock notification counter " David Howells
2019-06-06 9:43 ` [PATCH 07/10] Add a general, global device notification watch list " David Howells
2019-06-06 9:43 ` [PATCH 08/10] block: Add block layer notifications " David Howells
2019-06-06 9:43 ` [PATCH 09/10] usb: Add USB subsystem " David Howells
2019-06-06 14:24 ` Alan Stern
2019-06-06 14:33 ` Greg Kroah-Hartman
2019-06-06 14:55 ` Alan Stern
2019-06-06 15:31 ` Greg Kroah-Hartman
2019-06-07 6:40 ` Felipe Balbi
2019-06-07 14:01 ` Alan Stern
2019-06-11 6:28 ` Felipe Balbi
2019-06-11 13:53 ` Alan Stern
2019-06-12 6:58 ` Felipe Balbi
2019-06-06 9:43 ` [PATCH 10/10] Add sample notification program " David Howells
2019-06-06 21:21 ` Eugeniu Rosca [this message]
2019-06-06 22:52 ` David Howells
2019-06-07 14:37 ` David Howells
2019-06-06 12:32 ` [RFC][PATCH 00/10] Mount, FS, Block and Keyrings notifications " Stephen Smalley
2019-06-06 13:16 ` David Howells
2019-06-06 14:05 ` Stephen Smalley
2019-06-06 16:43 ` Casey Schaufler
2019-06-06 17:11 ` Andy Lutomirski
2019-06-06 18:33 ` Casey Schaufler
2019-06-06 18:51 ` Andy Lutomirski
2019-06-06 17:16 ` Stephen Smalley
2019-06-06 18:56 ` Casey Schaufler
2019-06-06 19:54 ` Andy Lutomirski
2019-06-06 21:17 ` David Howells
2019-06-06 21:54 ` Andy Lutomirski
2019-06-06 22:38 ` David Howells
2019-06-06 22:42 ` Andy Lutomirski
2019-06-06 22:50 ` David Howells
2019-06-06 14:34 ` Christian Brauner
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