Daniel Borkmann wrote:
On 05/18/2018 02:50 PM, Sandipan Das wrote:
This adds support for bpf-to-bpf function calls in the powerpc64
JIT compiler. The JIT compiler converts the bpf call instructions
to native branch instructions. After a round of the usual passes,
the start addresses of the
Alexei Starovoitov wrote:
On 3/1/18 12:51 AM, Naveen N. Rao wrote:
Daniel Borkmann wrote:
Worst case if there's nothing better, potentially what one could do in
bpf_prog_get_info_by_fd() is to dump an array of full addresses and
have the imm part as the index pointing to one of them, just
Daniel Borkmann wrote:
On 02/27/2018 01:13 PM, Sandipan Das wrote:
With this patch, it will look like this:
0: (85) call pc+2#bpf_prog_8f85936f29a7790a+3
(Note the +2 is the insn->off already.)
1: (b7) r0 = 1
2: (95) exit
3: (b7) r0 = 2
4: (95) exit
where 8f85936f29a7790a is
Michael Ellerman wrote:
"Naveen N. Rao" <naveen.n@linux.vnet.ibm.com> writes:
Daniel Borkmann wrote:
On 02/15/2018 05:25 PM, Daniel Borkmann wrote:
On 02/13/2018 05:05 AM, Sandipan Das wrote:
The imm field of a bpf_insn is a signed 32-bit integer. For
JIT-ed bpf-to-bp
Daniel Borkmann wrote:
On 02/15/2018 05:25 PM, Daniel Borkmann wrote:
On 02/13/2018 05:05 AM, Sandipan Das wrote:
The imm field of a bpf_insn is a signed 32-bit integer. For
JIT-ed bpf-to-bpf function calls, it stores the offset from
__bpf_call_base to the start of the callee function.
For
Naveen N. Rao wrote:
Alexei Starovoitov wrote:
On 2/8/18 4:03 AM, Sandipan Das wrote:
The imm field of a bpf_insn is a signed 32-bit integer. For
JIT-ed bpf-to-bpf function calls, it stores the offset from
__bpf_call_base to the start of the callee function.
For some architectures
Alexei Starovoitov wrote:
On 2/8/18 4:03 AM, Sandipan Das wrote:
The imm field of a bpf_insn is a signed 32-bit integer. For
JIT-ed bpf-to-bpf function calls, it stores the offset from
__bpf_call_base to the start of the callee function.
For some architectures, such as powerpc64, it was found
in 32 bit alu
Daniel Borkmann wrote:
Very minor optimization; saves 1 byte per program in x86_64
JIT in cBPF prologue.
... but increases program size by 4 bytes on ppc64 :(
In general, this is an area I've been wanting to spend some time on.
Powerpc doesn't have 32-bit sub-registers, so we
Daniel Borkmann wrote:
Since we've changed div/mod exception handling for src_reg in
eBPF verifier itself, remove the leftovers from ppc64 JIT.
Signed-off-by: Daniel Borkmann <dan...@iogearbox.net>
Cc: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bpf_jit_
Alexei Starovoitov wrote:
On 11/7/17 12:55 AM, Naveen N. Rao wrote:
I thought such struct shouldn't change layout.
If it is we need to fix include/linux/compiler-clang.h to do that
anon struct as well.
We considered that, but it looked to be very dependent on the version of
gcc used to build
Alexei Starovoitov wrote:
On 11/5/17 2:31 AM, Naveen N. Rao wrote:
Hi Alexei,
Alexei Starovoitov wrote:
On 11/3/17 3:58 PM, Sandipan Das wrote:
For added security, the layout of some structures can be
randomized by enabling CONFIG_GCC_PLUGIN_RANDSTRUCT. One
such structure is task_struct
Hi Alexei,
Alexei Starovoitov wrote:
On 11/3/17 3:58 PM, Sandipan Das wrote:
For added security, the layout of some structures can be
randomized by enabling CONFIG_GCC_PLUGIN_RANDSTRUCT. One
such structure is task_struct. To build BPF programs, we
use Clang which does not support this feature.
andipan Das <sandi...@linux.vnet.ibm.com>
> ---
LGTM, thanks!
Reviewed-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
Michael,
Seeing as this is powerpc specific, can you please take this through
your tree?
Thanks,
Naveen
> arch/powerpc/net/bpf_jit64.h | 7 ---
On 2017/01/24 04:13PM, David Laight wrote:
> From: 'Naveen N. Rao'
> > Sent: 23 January 2017 19:22
> > On 2017/01/15 09:00AM, Benjamin Herrenschmidt wrote:
> > > On Fri, 2017-01-13 at 23:22 +0530, 'Naveen N. Rao' wrote:
> > > > > That rather depends on wh
On 2017/01/15 09:00AM, Benjamin Herrenschmidt wrote:
> On Fri, 2017-01-13 at 23:22 +0530, 'Naveen N. Rao' wrote:
> > > That rather depends on whether the processor has a store to load forwarder
> > > that will satisfy the read from the store buffer.
> > > I don't kno
Hi David,
On 2017/01/16 01:38PM, David Miller wrote:
>
> I'm assuming these patches will go via the powerpc tree.
>
> If you want them to go into net-next, I kindly ask that you always
> explicitly say so, and furthermore always submit a patch series with
> a proper "[PATCH 0/N] ..." header
On 2017/01/13 05:17PM, David Laight wrote:
> From: Naveen N. Rao
> > Sent: 13 January 2017 17:10
> > Generate instructions to perform the endian conversion using registers,
> > rather than generating two memory accesses.
> >
> > The "way easier and faster
From: Daniel Borkmann <dan...@iogearbox.net>
We have a check earlier to ensure we don't proceed if image is NULL. As
such, the redundant check can be removed.
Signed-off-by: Daniel Borkmann <dan...@iogearbox.net>
[Added similar changes for classic BPF JIT]
Signed-off-by: Naveen N. R
Generate instructions to perform the endian conversion using registers,
rather than generating two memory accesses.
The "way easier and faster" comment was obviously for the author, not
the processor.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
the entire allocated buffer rather than just the part containing
the actual program. We already flush the buffer from start to the end of
the BPF program. Extend this to include the illegal instructions after
the BPF program.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
On 2016/09/26 11:00AM, Daniel Borkmann wrote:
> On 09/26/2016 10:56 AM, Naveen N. Rao wrote:
> > On 2016/09/24 03:30AM, Alexei Starovoitov wrote:
> > > On Sat, Sep 24, 2016 at 12:33:54AM +0200, Daniel Borkmann wrote:
> > > > On 09/23/2016 10:35 PM, Naveen N. Rao wro
On 2016/09/24 03:30AM, Alexei Starovoitov wrote:
> On Sat, Sep 24, 2016 at 12:33:54AM +0200, Daniel Borkmann wrote:
> > On 09/23/2016 10:35 PM, Naveen N. Rao wrote:
> > >Tail calls allow JIT'ed eBPF programs to call into other JIT'ed eBPF
> > >programs. This can be
These samples fail to compile as 'struct flow_keys' conflicts with
definition in net/flow_dissector.h. Fix the same by renaming the
structure used in the sample.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
samples/bpf/sockex2_kern.c | 10 +-
sampl
seccomp_phase1() does not exist anymore. Instead, update sample to use
__seccomp_filter(). While at it, set max locked memory to unlimited.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
I am not completely sure if __seccomp_filter is the right place to hook
in. This
6c: xoris r2,r2,48399
70: rotlwi r2,r2,0
74: mr r8,r2
78: rotlwi r8,r8,0
7c: ld r27,-40(r1)
80: ld r28,-32(r1)
84: mr r3,r8
88: blr
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bpf_jit64.h
calls themselves, the first two instructions are NOPs.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ppc-opcode.h | 2 +
arch/powerpc/net/bpf_jit.h| 2 +
arch/powerpc/net/bpf_jit64.h | 1 +
arch/powerpc/net/bpf_jit_co
While at it, ensure that the location of the local save area is
consistent whether or not we setup our own stackframe. This property is
utilised in the next patch that adds support for tail calls.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bpf_j
...@redhat.com>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bpf_jit.h | 121 +-
arch/powerpc/net/bpf_jit32.h| 139
arc
ascardo <casca...@redhat.com>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bpf_jit.h | 17 +++--
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/net/bpf_jit.h b
://thread.gmane.org/gmane.linux.ports.ppc.embedded/96514
Naveen N. Rao (7):
ppc bpf/jit: Disable classic BPF JIT on ppc64le
ppc: bpf/jit: Fix/enhance 32-bit Load Immediate implementation
ppc: bpf/jit: Optimize 64-bit Immediate loads
ppc: bpf/jit: Introduce rotate immediate instructions
;
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Thadeu Lima de Souza Cascardo <casca...@redhat.com>
Acked-by: Alexei Star
c: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Thadeu Lima de Souza Cascardo <casca...@redhat.com>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ppc-opcode.h | 2 ++
arch/pow
dhat.com>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 3 +-
arch/powerpc/include/asm/asm-compat.h | 2 +
arch/powerpc/include/asm/ppc-opcode.h | 20 +-
arch/powerpc/net/
..@in.ibm.com>
Cc: Thadeu Lima de Souza Cascardo <casca...@redhat.com>
Reported-by: Thadeu Lima de Souza Cascardo <casca...@redhat.com>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
;
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Thadeu Lima de Souza Cascardo <casca...@redhat.com>
Acked-by: Alexei Star
On 2016/06/22 12:42PM, Naveen N Rao wrote:
> On 2016/06/21 11:47AM, Thadeu Lima de Souza Cascardo wrote:
> > On Tue, Jun 21, 2016 at 09:15:48PM +1000, Michael Ellerman wrote:
> > > On Tue, 2016-06-21 at 14:28 +0530, Naveen N. Rao wrote:
> > > > On 2016/06/20 03:56PM,
On 2016/06/22 08:37PM, Michael Ellerman wrote:
> On Tue, 2016-06-07 at 19:02 +0530, Naveen N. Rao wrote:
>
> > PPC64 eBPF JIT compiler.
> >
> > Enable with:
> > echo 1 > /proc/sys/net/core/bpf_jit_enable
> > or
> > echo 2 > /proc/sys/net/core/bpf_
On 2016/06/21 11:47AM, Thadeu Lima de Souza Cascardo wrote:
> On Tue, Jun 21, 2016 at 09:15:48PM +1000, Michael Ellerman wrote:
> > On Tue, 2016-06-21 at 14:28 +0530, Naveen N. Rao wrote:
> > > On 2016/06/20 03:56PM, Thadeu Lima de Souza Cascardo wrote:
> > > > On S
On 2016/06/21 09:04PM, Michael Ellerman wrote:
> On Tue, 2016-06-21 at 12:28 +0530, Naveen N. Rao wrote:
> > On 2016/06/21 09:38AM, Michael Ellerman wrote:
> > > On Sun, 2016-06-19 at 23:06 +0530, Naveen N. Rao wrote:
> > > >
> > > > #inc
On 2016/06/20 03:56PM, Thadeu Lima de Souza Cascardo wrote:
> On Sun, Jun 19, 2016 at 11:19:14PM +0530, Naveen N. Rao wrote:
> > On 2016/06/17 10:00AM, Thadeu Lima de Souza Cascardo wrote:
> > >
> > > Hi, Michael and Naveen.
> > >
> > > I noticed i
On 2016/06/21 09:38AM, Michael Ellerman wrote:
> On Sun, 2016-06-19 at 23:06 +0530, Naveen N. Rao wrote:
> > On 2016/06/17 10:53PM, Michael Ellerman wrote:
> > > On Tue, 2016-07-06 at 13:32:23 UTC, "Naveen N. Rao" wrote:
> > > > diff --git a/arch/powe
On 2016/06/17 10:00AM, Thadeu Lima de Souza Cascardo wrote:
> On Fri, Jun 17, 2016 at 10:53:21PM +1000, Michael Ellerman wrote:
> > On Tue, 2016-07-06 at 13:32:23 UTC, "Naveen N. Rao" wrote:
> > > diff --git a/arch/powerpc/net/bpf_jit_comp64.c
> > > b/arch/p
On 2016/06/17 10:53PM, Michael Ellerman wrote:
> On Tue, 2016-07-06 at 13:32:23 UTC, "Naveen N. Rao" wrote:
> > diff --git a/arch/powerpc/net/bpf_jit_comp64.c
> > b/arch/powerpc/net/bpf_jit_comp64.c
> > new file mode 100644
> > index 000..954ff53
> &g
On 2016/06/10 10:47PM, David Miller wrote:
> From: "Naveen N. Rao" <naveen.n@linux.vnet.ibm.com>
> Date: Tue, 7 Jun 2016 19:02:17 +0530
>
> > Please note that patch [2] is a pre-requisite for this patchset, and is
> > not yet upstream.
&
On 2016/06/08 10:19PM, Nilay Vaish wrote:
> Naveen, can you point out where in the patch you update the variable:
> idx, a member of codegen_contex structure? Somehow I am unable to
> figure it out. I can only see that we set it to 0 in the
> bpf_int_jit_compile function. Since all your test
On 2016/06/07 03:56PM, Alexei Starovoitov wrote:
> On Tue, Jun 07, 2016 at 07:02:23PM +0530, Naveen N. Rao wrote:
> > PPC64 eBPF JIT compiler.
> >
> > Enable with:
> > echo 1 > /proc/sys/net/core/bpf_jit_enable
> > or
> > echo 2 > /proc/sy
t;
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ppc-opcode.h | 2 ++
arch/powerpc/net/bpf_jit.h| 20 +++-
2 files changed, 13 insertions(+), 9 deletions(-)
di
;
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/bp
for BPF constant blinding
Please note that patch [2] is a pre-requisite for this patchset, and is
not yet upstream.
- Naveen
[1] http://thread.gmane.org/gmane.linux.kernel/2188694
[2] http://thread.gmane.org/gmane.linux.ports.ppc.embedded/96514
Naveen N. Rao (6):
ppc: bpf/jit: Fix/enhance 32-bit
;
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
arch/powerpc/net/b
Cc: Paul Mackerras <pau...@samba.org>
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n@l
Cc: Paul Mackerras <pau...@samba.org>
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet
erman.id.au>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Alexei Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by: Naveen N. R
On 2016/04/28 04:40PM, Jesper Dangaard Brouer wrote:
> On Thu, 28 Apr 2016 18:51:33 +0530
> "Naveen N. Rao" <naveen.n@linux.vnet.ibm.com> wrote:
>
> > > Add this features back. Note that it is possible to redefine the LLC
> > > on the make comman
e.g. one
> need to call make like:
>
> make samples/bpf/
>
> Do notice the "/" slash after the directory name.
>
> Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
Acked-by: Naveen N. Rao <naveen.n@linu
On 2016/04/28 02:20PM, Jesper Dangaard Brouer wrote:
> It is practical to be-able-to redefine the location of the LLVM
> command 'llc', because not all distros have a LLVM version with bpf
> target support. Thus, it is sometimes required to compile LLVM from
> source, and sometimes it is not
On 2016/04/27 11:16AM, Jesper Dangaard Brouer wrote:
> On Wed, 27 Apr 2016 14:05:22 +0530
> "Naveen N. Rao" <naveen.n@linux.vnet.ibm.com> wrote:
>
> > On 2016/04/27 09:30AM, Jesper Dangaard Brouer wrote:
> > > Getting started with using examples in s
;bro...@redhat.com>
> Acked-by: Alexei Starovoitov <a...@kernel.org>
> ---
> samples/bpf/Makefile | 18 ++
> 1 file changed, 18 insertions(+)
Acked-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
>
> diff --git a/samples/bpf/Makefile b/samp
On 2016/04/27 09:30AM, Jesper Dangaard Brouer wrote:
> Getting started with using examples in samples/bpf/ is not
> straightforward. There are several dependencies, and specific
> versions of these dependencies.
>
> Just compiling the example tool is also slightly obscure, e.g. one
> need to
On 2016/04/27 09:30AM, Jesper Dangaard Brouer wrote:
> It is practical to be-able-to redefine the location of the LLVM
> command 'llc', because not all distros have a LLVM version with bpf
> target support. Thus, it is sometimes required to compile LLVM from
> source, and sometimes it is not
On 2016/04/05 09:28AM, Alexei Starovoitov wrote:
> On 4/5/16 3:02 AM, Naveen N. Rao wrote:
> >Some of these tests proved useful with the powerpc eBPF JIT port due to
> >sign-extended 16-bit immediate loads. Though some of these aspects get
> >covered in other tests, it is be
On 2016/04/05 09:20AM, Alexei Starovoitov wrote:
> On 4/5/16 3:02 AM, Naveen N. Rao wrote:
> >Unsigned Jump-if-Greater-Than.
> >
> >Cc: Alexei Starovoitov <a...@fb.com>
> >Cc: Daniel Borkmann <dan...@iogearbox.net>
> >Cc: "David S. Miller"
Mackerras <pau...@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
lib/test_bpf.c | 29 +
1 file changed, 29 insertions(+)
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index e76fa4d..7e6fb49 100644
--- a/lib/test_bpf.c
+++ b
lerman.id.au>
Cc: Paul Mackerras <pau...@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
lib/test_bpf.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 27a7a26..e76fa4d 100644
--- a/li
bm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Paul Mackerras <pau...@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
lib/test_bpf.c | 64 ++
1 file changed, 64 insertions(+)
diff --git a/li
Daniel Borkmann <dan...@iogearbox.net>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Paul Mackerras <pau...@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.
On 2016/04/01 08:34PM, Daniel Borkmann wrote:
> On 04/01/2016 08:10 PM, Alexei Starovoitov wrote:
> >On 4/1/16 2:58 AM, Naveen N. Rao wrote:
> >>PPC64 eBPF JIT compiler. Works for both ABIv1 and ABIv2.
> >>
> >>Enable with:
> >>echo 1 > /proc/sys/n
Starovoitov <a...@fb.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: David S. Miller <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Si
Cc: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
v2: removed generation of .s files
samples/bpf/Makefile | 12 +++-
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/samples/bpf/Makefile b/samples/bpf/Ma
rkmann <dan...@iogearbox.net>
Cc: David S. Miller <da...@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
v2: updated macros using ({ }) gcc e
On 2016/03/31 10:52AM, Alexei Starovoitov wrote:
> On 3/31/16 4:25 AM, Naveen N. Rao wrote:
> ...
> >+
> >+#ifdef __powerpc__
> >+#define BPF_KPROBE_READ_RET_IP(ip, ctx) { (ip) = (ctx)->link; }
> >+#define BPF_KRETPROBE_READ_RET_IP(ip, ctx) BPF_KPRO
On 2016/03/31 08:19PM, Daniel Borkmann wrote:
> On 03/31/2016 07:46 PM, Alexei Starovoitov wrote:
> >On 3/31/16 4:25 AM, Naveen N. Rao wrote:
> >> clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
> >> -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unu
On 2016/03/31 10:49AM, Alexei Starovoitov wrote:
> On 3/31/16 4:25 AM, Naveen N. Rao wrote:
> >Make BPF samples build depend on CONFIG_SAMPLE_BPF. We still don't add a
> >Kconfig option since that will add a dependency on llvm for allyesconfig
> >builds which may not be desira
On 2016/03/31 10:43AM, Alexei Starovoitov wrote:
> On 3/31/16 4:25 AM, Naveen N. Rao wrote:
> >Building BPF samples is failing with the below error:
> >
> >samples/bpf/map_perf_test_user.c: In function ‘main’:
> >samples/bpf/map_perf_test_user.c:134:9: error: vari
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