If arch_validate_hwbkpt_settings() fails, bp-ctx won't be valid and the
kernel panics. Add a check to fix this.
Reported-by: Edjunior Barbosa Machado emach...@linux.vnet.ibm.com
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
arch/powerpc/kernel/hw_breakpoint.c |2 +-
1 file
If arch_validate_hwbkpt_settings() fails, bp-ctx won't be valid and the
kernel panics. Add a check to fix this.
Reported-by: Edjunior Barbosa Machado emach...@linux.vnet.ibm.com
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
arch/powerpc/kernel/hw_breakpoint.c |2 +-
1 file
avoid having to look at the
function descriptor.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
arch/powerpc/include/asm/code-patching.h | 26 +-
arch/powerpc/include/asm/kprobes.h | 58 ++--
2 files changed, 58 insertions(+), 26
to patch 6.
Tested on ppc64 BE and LE.
- Naveen
Naveen N. Rao (8):
kprobes: Fix kallsyms lookup across powerpc ABIv1 and ABIv2
perf probe powerpc: Fix symbol fixup issues due to ELF type
perf probe: Improve detection of file/function name in the probe
pattern
perf probe powerpc: Handle
probe:do_fork -aR sleep 1
# cat /sys/kernel/debug/tracing/kprobe_events
p:probe/do_fork _text+635952
# printf %x 635952
9b430
# grep do_fork /boot/System.map
c00ab430 T .do_fork
Fix by checking for ELF type ET_DYN used by ppc64 kernels.
Signed-off-by: Naveen N. Rao naveen.n
Semantic error :File always requires line number or lazy pattern.
Error: Command Parse Error.
Fix this by checking the probe pattern in more detail.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf/util/probe-event.c | 23 ---
1 file changed, 20
Fix up various perf aspects related to ppc64's usage of dot functions:
- ignore leading '.' when generating event names and when looking for
existing events.
- use the proper prefix when ignoring SyS symbol lookups.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf
Allow perf probe to work on powerpc ABIv1 without the need to specify the
leading dot '.' for functions. 'perf probe do_fork' works with this patch.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf/util/probe-event.c | 9 +
1 file changed, 9 insertions(+)
diff
PPC64 ELF ABIv2 has a Global Entry Point (GEP) and a Local Entry Point
(LEP). For purposes of probing, we need the LEP. Offset to the LEP is
encoded in st_other.
Signed-off-by: Ananth N Mavinakayanahalli ana...@in.ibm.com
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools
-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf/util/probe-event.c | 8
1 file changed, 8 insertions(+)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 174c22e..adcdbd2 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe
On powerpc ABIv2, if no debug-info is found and we use kallsyms,
we need to fixup the function entry to point to the local entry point.
Use offset of 8 since current toolchains always generate 2
instructions (8 bytes).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf
On 2014/12/09 06:07PM, Arnaldo Carvalho de Melo wrote:
Em Tue, Dec 09, 2014 at 11:04:00PM +0530, Naveen N. Rao escreveu:
If using the symbol table, symbol addresses are not being fixed up
properly, resulting in probes being placed at wrong addresses:
# perf probe do_fork
Added new
On 2014/12/10 08:37PM, Michael Ellerman wrote:
On Tue, 2014-12-09 at 23:03 +0530, Naveen N. Rao wrote:
Currently, all non-dot symbols are being treated as function descriptors
in ABIv1. This is incorrect and is resulting in perf probe not working:
I don't understand that first sentence
On 2014/12/10 08:50PM, Michael Ellerman wrote:
On Tue, 2014-12-09 at 23:04 +0530, Naveen N. Rao wrote:
If using the symbol table, symbol addresses are not being fixed up
properly, resulting in probes being placed at wrong addresses:
# perf probe do_fork
Added new event
On 2014/12/10 09:00PM, Michael Ellerman wrote:
On Tue, 2014-12-09 at 23:04 +0530, Naveen N. Rao wrote:
Currently, perf probe considers patterns including a '.' to be a file.
However, this causes problems on powerpc ABIv1 where all functions have
a leading '.':
$ perf probe -F | grep
On 2014/12/10 09:13PM, Michael Ellerman wrote:
On Tue, 2014-12-09 at 23:04 +0530, Naveen N. Rao wrote:
PPC64 ELF ABIv2 has a Global Entry Point (GEP) and a Local Entry Point
(LEP). For purposes of probing, we need the LEP. Offset to the LEP is
encoded in st_other.
diff --git a/tools
On 2014/12/10 09:17PM, Michael Ellerman wrote:
On Tue, 2014-12-09 at 23:04 +0530, Naveen N. Rao wrote:
Use symbol table lookups by default if DWARF is not necessary, since
powerpc ABIv2 encodes local entry points in the symbol table and the
function entry address in DWARF may
dot symbols, but need to use the local entry point.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
Mike,
I have restricted all changes to just the kprobe_lookup_name() macro. It has
now been split into different implementations for ABIv1 and ABIv2, hopefully
addressing the concerns
.
- Naveen
Naveen N. Rao (8):
kprobes: Fix kallsyms lookup across powerpc ABIv1 and ABIv2
perf probe: Improve detection of file/function name in the probe
pattern
perf probe powerpc: Fix symbol fixup issues due to ELF type
perf probe powerpc: Handle powerpc dot symbols
perf probe
Semantic error :File always requires line number or lazy pattern.
Error: Command Parse Error.
Fix this by checking the probe pattern in more detail.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf/util/probe-event.c | 23 ---
1 file changed, 20
probe:do_fork -aR sleep 1
# cat /sys/kernel/debug/tracing/kprobe_events
p:probe/do_fork _text+635952
# printf %x 635952
9b430
# grep do_fork /boot/System.map
c00ab430 T .do_fork
Fix by checking for ELF type ET_DYN used by ppc64 kernels.
Signed-off-by: Naveen N. Rao naveen.n
Fix up various perf aspects related to ppc64's usage of dot functions:
- ignore leading '.' when generating event names and when looking for
existing events.
- use the proper prefix when ignoring SyS symbol lookups.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
tools/perf
to account for dot symbols.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
Changes from the previous patchset:
Introduced arch helper to override the way probe function filter works.
tools/perf/arch/powerpc/Makefile| 1 +
tools/perf/arch/powerpc/util/sym-handling.c
PPC64 ELF ABIv2 has a Global Entry Point (GEP) and a Local Entry Point
(LEP). For purposes of probing, we need the LEP. Offset to the LEP is
encoded in st_other.
Signed-off-by: Ananth N Mavinakayanahalli ana...@in.ibm.com
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
Changes
,
and what its offset from the global entry point is. Note that GDB does
the same when setting a breakpoint on a function entry.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
Changes from previous patchset:
Generalize and introduce helper to prefer symbol table over DWARF
On powerpc ABIv2, if no debug-info is found and we use kallsyms, we need
to fixup the function entry to point to the local entry point. Use
offset of 8 since current toolchains always generate 2 instructions (8
bytes).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
Changes
On 2015/01/21 09:51AM, Arnaldo Carvalho de Melo wrote:
Em Tue, Dec 09, 2014 at 11:03:58PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc
across ABIv1 and ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF
On 2015/01/28 05:14PM, Michael Ellerman wrote:
On Wed, 2015-01-28 at 11:12 +0530, Naveen N. Rao wrote:
On 2014/12/15 08:20PM, Naveen N Rao wrote:
This patchset fixes various issues with perf probe on powerpc across
ABIv1 and
ABIv2:
- in the presence of DWARF debug-info
On 2014/12/15 08:20PM, Naveen N Rao wrote:
This patchset fixes various issues with perf probe on powerpc across ABIv1 and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF, but with the symbol table, and
- in the absence of debug-info, but with kallsyms.
Applies
On 2015/04/23 09:10AM, Steven Rostedt wrote:
On Thu, 23 Apr 2015 12:15:04 +0530
Naveen N. Rao naveen.n@linux.vnet.ibm.com wrote:
diff --git a/arch/powerpc/include/asm/trace_clock.h
b/arch/powerpc/include/asm/trace_clock.h
new file mode 100644
index 000..0b0d094
--- /dev/null
Foundation.
+ *
+ * Copyright (C) 2015 Naveen N. Rao, IBM Corporation
+ */
+
+#ifndef _ASM_PPC_TRACE_CLOCK_H
+#define _ASM_PPC_TRACE_CLOCK_H
+
+#include linux/compiler.h
+#include linux/types.h
+
+extern u64 notrace trace_clock_ppc_tb(void);
+
+#define ARCH_TRACE_CLOCKS { trace_clock_ppc_tb, ppc-tb
On 2015/04/21 09:25AM, Steven Rostedt wrote:
On Tue, 21 Apr 2015 16:33:36 +0530
Naveen N. Rao naveen.n@linux.vnet.ibm.com wrote:
Add a new powerpc-specific trace clock using the timebase register,
similar to x86-tsc. This gives us a fast, monotonic, cross-cpu clock
for trace entries
On 2015/04/23 01:14PM, Michael Ellerman wrote:
On Wed, 2015-04-22 at 10:48 +0530, Naveen N. Rao wrote:
On 2015/04/21 09:25AM, Steven Rostedt wrote:
On Tue, 21 Apr 2015 16:33:36 +0530
Naveen N. Rao naveen.n@linux.vnet.ibm.com wrote:
Add a new powerpc-specific trace clock using
License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * Copyright (C) 2015 Naveen N. Rao, IBM Corporation
+ */
+
+#ifndef _ASM_PPC_TRACE_CLOCK_H
+#define _ASM_PPC_TRACE_CLOCK_H
+
+#include linux/compiler.h
+#include linux/types.h
+
+#ifdef CONFIG_TRACE_CLOCK
+
+extern u64 notrace
tb_offset).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
I have followed the approach used by x86-tsc here, but we could get rid of
trace_clock.c if we directly use get_tb() with perhaps the notrace annotation.
Would that be preferable?
Thanks,
Naveen
Documentation/trace
Semantic error :File always requires line number or lazy pattern.
Error: Command Parse Error.
Fix this:
- by checking the probe pattern in more detail, and
- skipping leading dot if one exists when creating/deleting events.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed
comparison.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
---
Changes:
This patch has been redone since upstream changed quite a bit. We now implement
arch-specific helper during symbol name comparison to ignore leading dot
Use the proper prefix when ignoring SyS symbols on ppc ABIv1. While at
it, generalize symbol selection so architectures can implement their
own logic.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
---
Changes:
- Move logic
changelog. Please note that I have
dropped the first (kernel) patch from the last series since it has been pushed
upstream. This series now only includes the rest of the patches.
(*) http://thread.gmane.org/gmane.linux.kernel/1851128
Naveen N. Rao (7):
perf probe: Improve detection of file
,
and what its offset from the global entry point is. Note that GDB does
the same when setting a breakpoint on a function entry.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
---
Changes:
- No changes other than move to use
-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
---
Changes:
- No changes other than move to use __weak functions
tools/perf/arch/powerpc/util/sym-handling.c | 7 +++
tools/perf/util/symbol-elf.c| 4
tools/perf/util
probe:do_fork -aR sleep 1
# cat /sys/kernel/debug/tracing/kprobe_events
p:probe/do_fork _text+635952
# printf %x 635952
9b430
# grep do_fork /boot/System.map
c00ab430 T .do_fork
Fix by checking for ELF type ET_DYN used by ppc64 kernels.
Signed-off-by: Naveen N. Rao naveen.n
On powerpc ABIv2, if no debug-info is found and we use kallsyms, we need
to fixup the function entry to point to the local entry point. Use
offset of 8 since current toolchains always generate 2 instructions (8
bytes).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed
On 2015/04/29 07:17AM, Masami Hiramatsu wrote:
On 2015/04/28 22:54, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF debug
On 2015/04/28 10:54AM, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF
On 2015/03/13 08:20PM, Masami Hiramatsu wrote:
(2015/03/13 5:24), Arnaldo Carvalho de Melo wrote:
Em Mon, Dec 15, 2014 at 08:20:32PM +0530, Naveen N. Rao escreveu:
Currently, perf probe considers patterns including a '.' to be a file.
However, this causes problems on powerpc ABIv1 where all
On 2015/03/12 05:30PM, Arnaldo Carvalho de Melo wrote:
Em Mon, Dec 15, 2014 at 08:20:35PM +0530, Naveen N. Rao escreveu:
Allow perf probe to work on powerpc ABIv1 without the need to specify
the leading dot '.' for functions. 'perf probe do_fork' works with this
patch.
Introduce
On 2015/03/12 05:23PM, Arnaldo Carvalho de Melo wrote:
Em Mon, Dec 15, 2014 at 08:20:33PM +0530, Naveen N. Rao escreveu:
If using the symbol table, symbol addresses are not being fixed up
properly, resulting in probes being placed at wrong addresses:
# perf probe do_fork
Added new
On 2015/03/13 08:20PM, Masami Hiramatsu wrote:
(2015/03/13 5:24), Arnaldo Carvalho de Melo wrote:
Em Mon, Dec 15, 2014 at 08:20:32PM +0530, Naveen N. Rao escreveu:
Currently, perf probe considers patterns including a '.' to be a file.
However, this causes problems on powerpc ABIv1 where all
Report guest steal time in host task statistics. On x86, this is just
the scheduler run_delay.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0ee725f..737b0e4
Introduce a field in /proc/pid/stat to expose guest steal time.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
fs/proc/array.c | 6 ++
include/linux/sched.h | 7 +++
kernel/fork.c | 2 +-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/fs
Average: 1008 - 30060.000.033.930.250.72
- |__qemu-system-ppc
- Naveen
--
Changes since RFC: Updated description to clarify few aspects that I got
questions about. No code changes.
Naveen N. Rao (3):
procfs: add guest steal time in /proc/pid/stat
structure to accurately track the guest
vcpu cede status (this is needed since the existing ceded field is
modified before we can use it). During DTL entry creation, we check this
flag and account the time as stolen if the guest vcpu had not ceded.
Signed-off-by: Naveen N. Rao naveen.n
Average: 1008 - 30060.000.033.930.250.72
- |__qemu-system-ppc
Thanks!
- Naveen
--
Changes since RFC: Updated description to clarify few aspects that I got
questions about. No code changes.
Naveen N. Rao (3):
procfs: add guest steal time in /proc/pid
Introduce a field in /proc/pid/stat to expose guest steal time.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
fs/proc/array.c | 6 ++
include/linux/sched.h | 7 +++
kernel/fork.c | 2 +-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/fs
structure to accurately track the guest
vcpu cede status (this is needed since the existing ceded field is
modified before we can use it). During DTL entry creation, we check this
flag and account the time as stolen if the guest vcpu had not ceded.
Signed-off-by: Naveen N. Rao naveen.n
Arrgh! Sorry about the headers. Please ignore this set. Will repost in a
separate thread.
- Naveen
On 2015/05/06 04:28PM, Naveen N Rao wrote:
Steal time accounts the time duration during which a guest vcpu was ready to
run, but was not scheduled to run by the hypervisor
Report guest steal time in host task statistics. On x86, this is just
the scheduler run_delay.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
---
arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c73efcd..7107b7d
On 2015/05/06 02:46PM, Christian Borntraeger wrote:
Am 06.05.2015 um 13:56 schrieb Naveen N. Rao:
On powerpc, kvm tracks both the guest steal time as well as the time
when guest was idle and this gets sent in to the guest through DTL. The
guest accounts these entries as either steal time
probe:do_fork -aR sleep 1
# cat /sys/kernel/debug/tracing/kprobe_events
p:probe/do_fork _text+635952
# printf %x 635952
9b430
# grep do_fork /boot/System.map
c00ab430 T .do_fork
Fix by checking for ELF type ET_DYN used by ppc64 kernels.
Signed-off-by: Naveen N. Rao naveen.n
/ab9cc5e2b9de4cbaaf50f6ef2346a6a81100bad1.1430217967.git.naveen.n@linux.vnet.ibm.com
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo a...@redhat.com
---
tools/perf/arch/powerpc/util/sym-handling.c | 7 +++
tools/perf/util/symbol-elf.c
point,
and what its offset from the global entry point is. Note that GDB does
the same when setting a breakpoint on a function entry.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
Cc: Ananth N Mavinakayanahalli ana...@in.ibm.com
On powerpc ABIv2, if no debug-info is found and we use kallsyms, we need
to fixup the function entry to point to the local entry point. Use
offset of 8 since current toolchains always generate 2 instructions (8
bytes).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed
On 2015/04/24 02:24PM, Naveen N Rao wrote:
Add a new powerpc-specific trace clock using the timebase register,
similar to x86-tsc. This gives us
- a fast, monotonic, hardware clock source for trace entries, and
- a clock that can be used to correlate events across cpus as well as across
On 2015/09/24 10:15PM, Naveen N Rao wrote:
> On 2015/09/24 08:32AM, Stephane Eranian wrote:
> > On Thu, Sep 24, 2015 at 5:57 AM, Jiri Olsa <jo...@redhat.com> wrote:
> > >
> > > On Thu, Sep 24, 2015 at 05:41:58PM +0530, Naveen N. Rao wrote:
> > &g
On 2015/09/29 08:53AM, Jiri Olsa wrote:
> On Tue, Sep 29, 2015 at 11:06:17AM +0530, Naveen N. Rao wrote:
> > On 2015/09/24 10:15PM, Naveen N Rao wrote:
> > > On 2015/09/24 08:32AM, Stephane Eranian wrote:
> > > > On Thu, Sep 24, 2015 at 5:57 AM, Jiri
On 2015/09/29 12:47PM, Jiri Olsa wrote:
> On Tue, Sep 29, 2015 at 01:30:10PM +0530, Naveen N. Rao wrote:
>
> SNIP
>
> > > > Suka has also posted a fix for this with a different approach [1]. Can
> > > > you please ack/pull one of these versions? Building pe
d-off-by: Wang Nan <wangn...@huawei.com>
> Acked-by: Jiri Olsa <jo...@kernel.org>
> Tested-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
> Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
> Cc: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
> Cc: Sukad
On 2015/12/17 09:29AM, Wang Nan wrote:
>
>
> On 2015/12/17 3:42, Arnaldo Carvalho de Melo wrote:
> >Em Tue, Dec 15, 2015 at 05:10:46PM +0530, Naveen N. Rao escreveu:
> >>On 2015/12/15 08:51AM, Wang Nan wrote:
> >>>From: "Naveen N. Rao" <navee
. While at it, remove redundant LP64 macro definition.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
---
tools/lib/bpf/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 636e3dd..050e0e8 100644
--- a
On 2015/12/14 07:53PM, Wang Nan wrote:
> Hi Naveen,
>
> On 2015/12/14 18:50, Naveen N. Rao wrote:
> >perf build is currently (v4.4-rc5) broken on powerpc:
> >
> >bpf.c:28:4: error: #error __NR_bpf not defined. libbpf does not support
> >your arch.
> > #
On 2015/12/14 11:57AM, Wang Nan wrote:
> Support basic PowerPC compiling.
>
> Checks BPF syscall number, turn off libbpf building on platform doesn't
> support sys_bpf instead of blocking compiling.
>
> Reported-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
> Sig
On 2015/12/15 08:51AM, Wang Nan wrote:
> From: "Naveen N. Rao" <naveen.n@linux.vnet.ibm.com>
>
> perf build is currently (v4.4-rc5) broken on powerpc:
>
> bpf.c:28:4: error: #error __NR_bpf not defined. libbpf does not support
> your arch.
> # er
3 patches. Please help me test it on PowerPC.
Hi Wang,
Thanks for putting this together. Entire series:
Tested-by: Naveen N. Rao <naveen.n@linux.vnet.ibm.com>
>
> Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
> Cc: Jiri Olsa <jo...@redhat.com>
> Cc: N
On 2015/12/17 09:19AM, Arnaldo Carvalho de Melo wrote:
> Em Thu, Dec 17, 2015 at 10:37:14AM +0530, Naveen N. Rao escreveu:
> > On 2015/12/17 09:29AM, Wang Nan wrote:
> > > The whole thread is:
> > >
> > > [PATCH v3 0/3] perf build: PowerPC: Fix buil
On 2016/01/07 05:39PM, Arnaldo Carvalho de Melo wrote:
> Em Thu, Jan 07, 2016 at 12:28:15PM +0530, Naveen N. Rao escreveu:
> > On 2015/12/17 09:19AM, Arnaldo Carvalho de Melo wrote:
> > > Em Thu, Dec 17, 2015 at 10:37:14AM +0530, Naveen N. Rao escreveu:
> > > > O
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
;
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
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
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
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
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
;
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
define PPC64_ELF_ABI_v2 when ELF ABI
v2 is detected.
We also have a few places where what we're really trying to check is
that we are using the 64-bit v1 ABI, ie. function descriptors. So also
add a #define for that, which simplifies several checks.
Signed-off-by: Naveen N. Rao <naveen.n@linux.vne
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
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.
&
Introduce helper to detect ret instructions and use the same in the tui.
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Anton Blanchard <an...@ozlabs.org>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Signed-off-by:
On 2016/06/10 08:08PM, Naveen N. Rao wrote:
> On 2016/06/10 10:36AM, Arnaldo Carvalho de Melo wrote:
> > Em Fri, Jun 10, 2016 at 06:32:51PM +0530, Naveen N. Rao escreveu:
> > > Convert ins__find() to a __weak function for generic functionality,
> > > while adding a p
On 2016/04/28 07:38PM, Michael Ellerman wrote:
> We're approaching 20 locations where we need to check for ELF ABI v2.
> That's fine, except the logic is a bit awkward, because we have to check
> that _CALL_ELF is defined and then what its value is.
>
> So check it once in asm/types.h and define
On 2016/06/10 10:36AM, Arnaldo Carvalho de Melo wrote:
> Em Fri, Jun 10, 2016 at 06:32:51PM +0530, Naveen N. Rao escreveu:
> > Convert ins__find() to a __weak function for generic functionality,
> > while adding a powerpc-specific variant. We look at the function name
> > fo
: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Anton Blanchard <an...@ozlabs.org>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Reported-by: Anton Blanchard <an...@ozlabs.org>
Signed-off-by: Naveen N. Rao <naveen.n..
On 2016/06/10 10:30AM, Arnaldo Carvalho de Melo wrote:
> Em Fri, Jun 10, 2016 at 06:32:50PM +0530, Naveen N. Rao escreveu:
> > Introduce helper to detect ret instructions and use the same in the tui.
Hi Arnaldo,
Thanks for the review.
>
> Humm, I think this is simpler and equiv
define PPC64_ELF_ABI_v2 when ELF ABI
v2 is detected.
We don't add explicit includes of asm/types.h because it's included
basically everywhere via compiler.h.
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
[changed name to PPC64_ELF_ABI_v2, added check for __powerpc64__, fixes]
Signed-off-by: N
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 2016/05/24 03:45PM, Madhavan Srinivasan wrote:
>
>
> On Thursday 19 May 2016 08:40 PM, Anju T wrote:
> > Detour buffer contains instructions to create an in memory pt_regs.
> > After the execution of prehandler a call is made for instruction emulation.
> > The NIP is decided after the probed
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 2016/06/20 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 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 2016/06/22 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_
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