hi, Jirka
On 2015/9/30 14:13, Jiri Olsa wrote:
On Wed, Sep 30, 2015 at 11:18:20AM +0800, He Kuang wrote:
Hi,
perf cross-compile error dual to fixdep is not a host executable, first bad
commit
is 7c422f557266("tools build: Build fixdep helper from perf and basic libs")
Cross-co
This patch implements arch_get_reg_info() for arm64 to enable
HAVE_BPF_PROLOGUE feature. For arm64, structure pt_regs is not composed
by fields of register names but an array of regs, so here we simply
multiply fixed register size by index number to get the byte offset.
Signed-off-by: He Kuang
Hi, Arnaldo
On 2015/9/1 4:16, Arnaldo Carvalho de Melo wrote:
Em Sat, Aug 29, 2015 at 03:16:52AM +, He Kuang escreveu:
This patch implements arch_get_reg_info() for arm64 to enable
HAVE_BPF_PROLOGUE feature. For arm64, structure pt_regs is not composed
by fields of register names but an
hi, Alexei
What about using similar
implementation
like PERF_EVENT_IOC_SET_OUTPUT, creating a new ioctl like
PERF_EVENT_IOC_SET_ENABLER,
then let perf to select an event as 'enabler', then BPF can still
control one atomic
variable to enable/disable a set of events.
you lost me on that last sen
hi, Alexei
I've tested the sample in next patch and it works well. I think more work on
the perf side needs to be done for parsing PERF_COUNT_SW_BPF_OUTPUT event type,
are you working on that?
Thank you.
On 2015/10/21 11:02, Alexei Starovoitov wrote:
This helper is used to send raw data from e
ping and add a...@plumgrid.com, what's your opinion on this?
On 2015/10/19 13:34, He Kuang wrote:
This patch implements a timer map type inherited from array map. eBPF
programs can deloy a timer by updating an entry in timer map, and
destroy that by deleting the entry. The timer delay ti
when the timer is
triggered, then eBPF programs can be attatched to this function and
perfrom customized functions.
Signed-off-by: He Kuang
---
Here's a hypothetical scenario to illustrate the use of timer map.
A video frame is updated between frame_refresh_start() and
frame_refresh_end(
x27;
Added new event:
probe:sys_write (on sys_write)
You can now use it in all perf tools, such as:
perf record -e probe:sys_write -aR sleep 1
Added new event:
probe:sys_open (on sys_open)
You can now use it in all perf tools, such as:
perf record -e p
]
./perf() [0x434ea5]
[(nil)]
Signed-off-by: He Kuang
---
tools/perf/util/evlist.c | 13 ++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 76ef7ee..9d36433 100644
--- a/tools/perf/util/evlist.c
+++ b/tools
perf_evlist__mmap_consume() uses perf_mmap__empty() to judge whether
perf_mmap is empty and can be released. But the result is inverted so
fix it.
Signed-off-by: He Kuang
---
tools/perf/util/evlist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/evlist.c b
c_perform_write _stext+1237464
global_variable_for_test=@global_variable_for_test+0:s32
probe:generic_perform_write (on generic_perform_write with
global_variable_for_test)
You can now use it in all perf tools, such as:
perf record -e probe:generic_perform_write -aR sleep 1
Signed-off-by:
Hi, Arnaldo
On 2015/4/7 20:36, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 07, 2015 at 05:31:11PM +0800, He Kuang escreveu:
After perf_evlist__filter_pollfd() filters out fds and releases
perf_mmap by using perf_evlist__mmap_put(), refcnt of perf_mmap hits 1
then perf_evlist__mmap_consume
ert: Converted and wrote 0.023 MB (596 samples) ]
Signed-off-by: He Kuang
---
tools/perf/util/data-convert-bt.c | 30 --
1 file changed, 20 insertions(+), 10 deletions(-)
diff --git a/tools/perf/util/data-convert-bt.c
b/tools/perf/util/data-convert-bt.c
index a5b89b9
Show message when errors occurred during ctf conversion setup.
Before this patch:
$ ./perf data convert --to-ctf=ctf
$ echo $?
255
After this patch:
$ ./perf data convert --to-ctf=ctf
Error during CTF convert setup.
Signed-off-by: He Kuang
---
tools/perf/util/data-convert-bt.c | 8
On 2015/4/9 1:59, Jiri Olsa wrote:
On Wed, Apr 08, 2015 at 12:49:20PM +0800, He Kuang wrote:
Due to babeltrace commit:
7f800dc7c2a1 ("ir: make trace environment use bt_object")
The trace->frozen flag is set in bt_ctf_trace_create_stream(), this flag
is checked before addin
Show message when errors occurred during conversion setup and conversion
process.
Before this patch:
$ ./perf data convert --to-ctf=ctf
$ echo $?
255
After this patch:
$ ./perf data convert --to-ctf=ctf
Error during conversion setup.
Signed-off-by: He Kuang
---
tools/perf/util/data
Hi, jirka
On 2015/4/9 1:45, Jiri Olsa wrote:
On Wed, Apr 08, 2015 at 12:49:19PM +0800, He Kuang wrote:
Show message when errors occurred during ctf conversion setup.
Before this patch:
$ ./perf data convert --to-ctf=ctf
$ echo $?
255
After this patch:
$ ./perf data convert --to
ch:
$ perf probe -s ./kernel_src/ -k ./vmlinux --add='fs/super.c;s->s_count=1;'
Added new events:
probe:_stext (on @fs/super.c)
probe:_stext_1 (on @fs/super.c)
...
Signed-off-by: He Kuang
---
tools/perf/util/probe-event.c | 2 +-
tools/perf/util/probe-ev
t;s_count=1;'
Added new event:
probe:_stext (on @fs/super.c)
You can now use it in all perf tools, such as:
perf record -e probe:_stext -aR sleep 1
Signed-off-by: He Kuang
---
tools/perf/util/probe-finder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --g
$ cat /sys/kernel/debug/tracing/kprobe_events
r:probe/sys_write SyS_write
Signed-off-by: He Kuang
---
tools/perf/util/probe-event.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 30545ce..5483d98 100644
--- a/tools/per
On 04/13/2015 10:39 PM, Arnaldo Carvalho de Melo wrote:
Em Mon, Apr 13, 2015 at 07:41:28PM +0800, He Kuang escreveu:
Perf probe misses to set retprobe flag back when falling back to
address-based alternative mode.
And when is that happens, can you explain? Because I tried to follow your
Hi, Arnaldo
On 04/13/2015 10:42 PM, Arnaldo Carvalho de Melo wrote:
Em Mon, Apr 13, 2015 at 11:39:03AM -0300, Arnaldo Carvalho de Melo escreveu:
Em Mon, Apr 13, 2015 at 07:41:28PM +0800, He Kuang escreveu:
Perf probe misses to set retprobe flag back when falling back to
address-based
hi, Alexei
On 2015/5/27 1:50, Alexei Starovoitov wrote:
> On 5/25/15 1:33 AM, He Kuang wrote:
>> Right, I learnt regparm(3) is mandatory in x86_32, according to rules,
>> the first three args will go to regparm(ax, dx, cx). But we should not
>> refer arg1~3 to ax, dx
On 2015/5/27 23:30, Alexei Starovoitov wrote:
> On 5/26/15 7:27 PM, He Kuang wrote:
>> hi, Alexei
>>
>> On 2015/5/27 1:50, Alexei Starovoitov wrote:
>>> On 5/25/15 1:33 AM, He Kuang wrote:
>>>> Right, I learnt regparm(3) is mandatory in x86_32, accordin
patch:
$ perf.perf record -B -e syscalls:sys_enter_open uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.001 MB perf.data ]
Signed-off-by: He Kuang
---
tools/perf/builtin-record.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions
The libtrace-dynamic-list file is used to export symbols used by
traceevent plugins.
Signed-off-by: He Kuang
---
tools/lib/traceevent/.gitignore | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/lib/traceevent/.gitignore b/tools/lib/traceevent/.gitignore
index 35f56be..3c60335 100644
1049 [000] 9666.754487: ftrace:function: __set_task_comm
:1049 1049 [000] 9666.754487: ftrace:function:_raw_spin_lock
:1049 1049 [000] 9666.754487: ftrace:function: task_tgid_nr_ns
...
Signed-off-by: He Kuang
Acked-by: Jiri Olsa
---
tools/lib/traceevent/Makef
hi, Alexei
On 2015/5/29 2:10, Alexei Starovoitov wrote:
> On 5/28/15 6:01 AM, He Kuang wrote:
>>> I don't think you can break it down in two steps like this.
>>>> There is no such thing as 'calling regs'. x86_32 with ax,dx,cx
>>>> are not &#x
format strings in warning message with PRIu64 for u64
'total_lost_samples' to fix this problem.
Signed-off-by: He Kuang
---
tools/perf/builtin-report.c | 2 +-
tools/perf/util/session.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-report
te'
Added new event:
probe:generic_perform_write (on generic_perform_write)
You can now use it in all perf tools, such as:
perf record -e probe:generic_perform_write -aR sleep 1
Signed-off-by: He Kuang
---
tools/perf/util/probe-event.c | 16 +++-
1 file changed, 15 insertions(+), 1
hi, Masami
On 2015/6/17 16:52, Masami Hiramatsu wrote:
On 2015/06/17 0:26, hekuang wrote:
hi, Arnaldo
On 06/15/2015 10:49 PM, Arnaldo Carvalho de Melo wrote:
Em Mon, Jun 15, 2015 at 08:06:53AM +, He Kuang escreveu:
Fix failure to probe events on arm, problem is introduced by commit
rite (on generic_perform_write)
You can now use it in all perf tools, such as:
perf record -e probe:generic_perform_write -aR sleep 1
Signed-off-by: He Kuang
---
tools/perf/util/probe-event.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/probe-ev
hi, Arnaldo
ping..
On 2015/5/28 21:28, He Kuang wrote:
Traceevent plugins need dynamic symbols exported from libtraceevent.a,
otherwise a dlopen error will occur during plugins loading.
This patch uses dynamic-list-file to export dynamic symbols which will
be used in plugins to perf
ping..
On 2015/5/28 21:17, He Kuang wrote:
The size of perf.data is missing update in no-buildid mode, which gives
wrong output result.
Before this patch:
$ perf.perf record -B -e syscalls:sys_enter_open uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record
Hi, Alexi
Thank you for your guidence, and by referencing your last mail
and other llvm backends, I found setting
BPFMCAsmInfo::SupportsDebugInformation = true in BPFMCAsmInfo.h
and fix some unhandeled switch can make llc output debug_info,
but important information is missing in the result:
bpf
Hi, Alexei
On 2015/7/24 11:20, Alexei Starovoitov wrote:
On 7/23/15 1:49 PM, Alexei Starovoitov wrote:
On 7/23/15 4:54 AM, He Kuang wrote:
trimmed cc-list, since it's not related to kernel.
Thank you for your guidence, and by referencing your last mail
and other llvm backends, I
Hi, Alexei
On 2015/7/30 1:13, Alexei Starovoitov wrote:
On 7/29/15 2:38 AM, He Kuang wrote:
Hi, Alexei
On 2015/7/28 10:18, Alexei Starovoitov wrote:
On 7/25/15 3:04 AM, He Kuang wrote:
I noticed that for 64-bit elf format, the reloc sections have
'Addend' in the entry, but
Hi, Alexei
On 2015/7/28 10:18, Alexei Starovoitov wrote:
On 7/25/15 3:04 AM, He Kuang wrote:
I noticed that for 64-bit elf format, the reloc sections have
'Addend' in the entry, but there's no 'Addend' info in bpf elf
file(64bit). I think there must be something w
Hi, Alexei
On 2015/7/24 12:16, He Kuang wrote:
Hi, Alexei
On 2015/7/24 11:20, Alexei Starovoitov wrote:
On 7/23/15 1:49 PM, Alexei Starovoitov wrote:
On 7/23/15 4:54 AM, He Kuang wrote:
trimmed cc-list, since it's not related to kernel.
Thank you for your guidence, and by referencing
,unlock} and fix the bug.
Signed-off-by: He Kuang
---
kernel/module.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/module.c b/kernel/module.c
index 4d2b82e..43d728b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3802,8 +3802,10 @@ unsigned long module_kallsyms_lookup_name
On 2015/7/14 21:35, Steven Rostedt wrote:
On Mon, 13 Jul 2015 20:10:29 -0700
Alexei Starovoitov wrote:
On 7/13/15 6:59 PM, He Kuang wrote:
This version we output bpf trace events in a hex array, the results
for three u64 integers in previous sample changed to this:
dd 1042 [000
Debug-frame for remote platforms is not related to the host platform,
so we should test each platform separately.
Signed-off-by: He Kuang
---
tools/build/Makefile.feature | 3 ++-
tools/build/feature/Makefile | 10 +++---
tools/build
bc-2.22.so)
804842e fib (/tmp/hello)
804849d main (/tmp/hello)
b762546e __libc_start_main (/lib/libc-2.22.so)
8048341 _start (/tmp/hello)
Thanks, discussion welcomed.
He Kuang (8):
perf tools: Omit DWARF judgement when
this patch, we test for x86 platform and only show
proper messages. The real unwind methods are not implemented, will be
introduced in next patch.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile| 19 --
tools/perf/util/Build | 3 +-
tools/perf
There's no need for dwarf support when perf recording with callchain.
Signed-off-by: He Kuang
---
tools/perf/util/util.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index b7766c5..e5ebfd4 100644
--- a/tools/perf/util/util.c
+++ b/
) on other machines.
Same thing for other platforms will be added in next patches.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 6 ++
tools/perf/util/symbol-elf.c | 16 +++
tools/perf/util/symbol.c | 49
tools/perf
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 -
tools/perf/config/Makefile | 12
Support x86(32bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../arch/x86/include/libunwind/libunwind-arch.h| 18 ++
tools/perf/arch/x86/util/unwind-libunwind.c| 42 ++
tools/perf/util/Build | 6
tools
Currently only test for local libunwind. We should check all supported
platforms so we can use them to parse perf.data with callchain info on
different machines.
Signed-off-by: He Kuang
---
tools/build/Makefile.feature | 8
tools/build/feature/Makefile
When unwinding callchain on different machine, vdso info should be
provided so the unwind process won't be interrupted if address fell
into vdso region.
Signed-off-by: He Kuang
---
tools/perf/builtin-script.c | 2 ++
tools/perf/util/dso.c | 7 +++
tools/perf/util/dso.h
32-bit programs can be run on 64-bit machines, so we should choose
unwind methods according to 'thread->map' instead of the host
architecture.
This patch adds methods to test whether a dso is 64-bit or 32-bit by
the class info in elf.
Signed-off-by: He Kuang
---
tools/perf/util
-bit) on other machines.
Same thing for other platforms will be added in next patches.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 6 ++
tools/perf/util/thread.c | 2 ++
tools/perf/util/unwind-libunwind.c | 32
tools/perf/util
this patch, we test for x86 platform and only show
proper messages. The real unwind methods are not implemented, will be
introduced in next patch.
Common function used by both local unwind and remote unwind are
separated into new file 'unwind-libunwind_common.c'.
Signed-off-by: He Kuang
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 -
tools/perf/config/Makefile | 12
Support x86(32-bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../arch/x86/include/libunwind/libunwind-arch.h| 18 ++
tools/perf/arch/x86/util/unwind-libunwind.c| 42 ++
tools/perf/util/Build | 6
Debug-frame for remote platforms is not related to the host platform,
so we should test each platform separately.
Signed-off-by: He Kuang
---
tools/build/Makefile.feature | 4 +++-
tools/build/feature/Makefile | 7 +++
tools/build
Signed-off-by: He Kuang
Acked-by: Jiri Olsa
---
tools/perf/util/util.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index b7766c5..e5ebfd4 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -471,7 +471,6 @@ int parse_callch
in .c file.
Thanks.
He Kuang (9):
perf tools: Omit DWARF judgement when recording dwarf callchain
perf script: Add options for custom vdso path
perf build: Add build-test for libunwind cross-platforms support
perf build: Add build-test for debug-frame on arm/arm64
perf tools: Add methods t
ndomly based on
VDSO__TEMP_FILE_NAME template, such a filename is not reliable and
users need a way to provide the path of their own vdso binary file.
Signed-off-by: He Kuang
---
tools/perf/builtin-script.c | 2 ++
tools/perf/util/dso.c | 7 +++
tools/perf/util/dso.h | 1 +
tools/perf/util/
Currently only test for local libunwind. We should check all supported
platforms so we can use them to parse perf.data with callchain info on
different machines.
Signed-off-by: He Kuang
---
tools/build/Makefile.feature | 4
tools/build/feature/Makefile | 16
amed as 'vdso32' and get failed.
This patch uses different names when storing the buildid, i.e. vdso64
for 64-bit machine and vdso32 for 32-bit machine, and eliminates this
naming confusion.
Signed-off-by: He Kuang
---
tools/perf/util/vdso.h | 7 ++-
1 file changed, 6 insertions(+
Support x86(32-bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../arch/x86/include/libunwind/libunwind-arch.h| 18 ++
tools/perf/arch/x86/util/unwind-libunwind.c| 42 ++
tools/perf/util/Build | 6
indexed by buildid do not cause ambiguity,
this patch simply removes that logical.
Signed-off-by: He Kuang
---
tools/perf/util/dso.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index b39b80c..a07166c5 100644
--- a/tools/perf
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 -
tools/perf/config/Makefile | 12
ata.
This patch stores vdso buildid regardless of whether the vdso is hit
or not.
Signed-off-by: He Kuang
---
tools/perf/util/build-id.c | 2 +-
tools/perf/util/dso.c | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-
ross platform unwind.
- Keep generic version of libunwind-debug-frame test.
- Put 32/64-bit test functions into separate patch.
- Extract unwind related functions to unwind-libunwind.c and add new
file for common parts used by both local and remote unwind.
- Eliminate most of the ifdefs in .
this patch, we test for x86 platform and only show
proper messages. The real unwind methods are not implemented, will be
introduced in next patch.
Common function used by both local unwind and remote unwind are
separated into new file 'unwind-libunwind_common.c'.
Signed-off-by: He Kuang
-bit) on other machines.
Same thing for other platforms will be added in next patches.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 6 ++
tools/perf/util/thread.c | 2 ++
tools/perf/util/unwind-libunwind.c | 33 +
tools/perf/util
both
unwind are supported and NO_LIBUNWIND means neither local nor remote
libunwind are supported.
Signed-off-by: He Kuang
---
tools/perf/arch/x86/util/Build| 2 +-
tools/perf/config/Makefile| 23 +-
tools/perf/util/Build | 2 +-
tools
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 -
tools/perf/config/Makefile | 12
Support x86(32-bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/x86/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/x86/util/unwind-libunwind.c | 19 ++-
tools/perf/util/Build
d tests status for cross platform unwind.
- Keep generic version of libunwind-debug-frame test.
- Put 32/64-bit test functions into separate patch.
- Extract unwind related functions to unwind-libunwind.c and add new
file for common parts used by both local and remote unwind.
- Eliminate mos
Pass LIBUNWIND_DIR to feature check flags for remote libunwind
tests. So perf can be able to detect remote libunwind libraries from
arbitrary directory.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 9 +
1 file changed, 9 insertions(+)
diff --git a/tools/perf/config/Makefile
-bit)
on other machines. Same thing for other platforms will be added in
next patches.
Common functions which will be used by both local unwind and remote
unwind are separated into new file 'unwind-libunwind_common.c'.
Signed-off-by: He Kuang
---
tools/perf/arch/common.c
, then it tries 'vdso' which indicates that the thread was run
on 32-bit machine when recording.
Signed-off-by: He Kuang
---
tools/perf/util/vdso.c | 40 +---
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/vdso.c b/t
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 -
tools/perf/config/Makefile | 12
s into separate patch.
- Extract unwind related functions to unwind-libunwind.c and add new
file for common parts used by both local and remote unwind.
- Eliminate most of the ifdefs in .c file.
Thanks.
He Kuang (6):
perf tools: Set buildid dir under symfs when --symfs is provided
perf
This patch moves the reference of buildid dir to 'symfs/.debug' and
skips the local buildid dir when '--symfs' is given, so that every
single file opened by perf is relateive to symfs directory now.
Signed-off-by: He Kuang
---
tools/perf/builtin-annotate.c | 5 +++--
tools
this patch, we test for x86 platform and only show
proper messages. The real unwind methods are not implemented, will be
introduced in next patch.
Signed-off-by: He Kuang
---
tools/perf/util/thread.c | 5 +--
tools/perf/util/thread.h | 14 +-
tools/perf/util
.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 21 ++---
tools/perf/util/Build | 2 +-
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a86b864..3035dbf 100644
--- a/tools/perf/config/Makefile
Support x86(32-bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
tools/perf/arch/x86/include/libunwind/libunwind-arch.h | 18 ++
tools/perf/arch/x86/util/unwind-libunwind.c| 12 +---
tools/perf/util/Build | 6
-bit) on other machines. Same thing for other platforms will be
added in next patches.
Common functions which will be used by both local unwind and remote
unwind are separated into new file 'unwind-libunwind_common.c'.
Signed-off-by: He Kuang
---
tools/perf/arch/common.c
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang
---
tools/perf/arch/Build | 1 +
tools/perf/arch/arm64/util/unwind-libunwind.c | 4 +++-
.../perf/arch/arm64/util/unwind-libunwind_arm64.c | 22 ++
tools/perf/config
This patch extracts codes related to specific arithecture out of
unwind-libunwind.c. The extrated part are only built if local
libunwind is supported.
Signed-off-by: He Kuang
---
tools/perf/util/Build| 1 +
tools/perf/util/unwind-libunwind-local.c | 677
Export normalize_arch() function, so other part of perf can get
normalized form of arch string.
Signed-off-by: He Kuang
---
tools/perf/arch/common.c | 2 +-
tools/perf/arch/common.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/arch/common.c b/tools/perf/arch
-off-by: He Kuang
---
tools/perf/util/thread.c | 7 ++-
tools/perf/util/unwind-libunwind.c | 7 +++
2 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 6d3900c..045477d 100644
--- a/tools/perf/util/thread.c
void *' instead to decouple the dependence on libunwind.
Signed-off-by: He Kuang
---
tools/perf/util/thread.h | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 45fba13..aa3a8ff 100644
--- a/tools/perf/util/thread.
Support x86(32-bit) cross platform callchain unwind.
Signed-off-by: He Kuang
---
tools/perf/arch/Build | 1 +
tools/perf/arch/x86/util/unwind-libunwind.c| 7 ---
tools/perf/arch/x86/util/unwind-libunwind_x86_32.c | 21 +
tools/perf
Pass LIBUNWIND_DIR to feature check flags for remote libunwind
tests. So perf can be able to detect remote libunwind libraries from
arbitrary directory.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 9 +
1 file changed, 9 insertions(+)
diff --git a/tools/perf/config/Makefile
.
Signed-off-by: He Kuang
---
tools/perf/util/unwind-libunwind-local.c | 2 +-
tools/perf/util/unwind.h | 5 -
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/unwind-libunwind-local.c
b/tools/perf/util/unwind-libunwind-local.c
index 5599adc
CONFIG_LIBUNWIND/NO_LIBUNWIND are changed to
CONFIG_LOCAL_LIBUNWIND/NO_LOCAL_LIBUNWIND for retaining local unwind
features.
The new CONFIG_LIBUNWIND stands for either local or remote or both
unwind are supported.
Signed-off-by: He Kuang
---
tools/perf/arch/arm/util/Build | 2 +-
tools/perf
v6:
By following the advises from Jiri Olsa:
- Introducing struct unwind_libunwind_ops for local unwind
- Move unwind__prepare_access from thread_new into thread__insert_map
- Extract local libunwind code out of unwind-libunwind.c
- Other changes mentioned in v5 mails.
Thanks.
He Kuan
methods of libunwind operations to
thread/map related, and each thread can have indivadual libunwind
operations. Local libunwind methods are registered as default value.
Signed-off-by: He Kuang
---
tools/perf/util/thread.c | 2 ++
tools/perf/util/thread.h | 14 +-
tools
-bit)
on other machines. Same thing for other platforms will be added in
next patches.
Signed-off-by: He Kuang
---
tools/perf/config/Makefile | 8
tools/perf/util/thread.c | 2 +-
tools/perf/util/unwind-libunwind.c | 30 +-
tools/perf/util
, then it tries 'vdso' which indicates that the thread was run
on 32-bit machine when recording.
Signed-off-by: He Kuang
---
tools/perf/util/vdso.c | 40 +---
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/vdso.c b/t
buildid dir under symfs if '--symfs' is
used, and adds new option '--dso-prefix' to specify the subdir path in
symfs which contains the buildid dsos.
Signed-off-by: He Kuang
---
tools/perf/builtin-script.c | 2 ++
tools/perf/util/config.c| 10 ++
tools/perf/u
+0x80007f0023a4 ([kernel.kallsyms])
7fffe358 do_signal+0x80007f002028 ([kernel.kallsyms])
7fffa5e8 exit_to_usermode_loop+0x80007f002053 ([kernel.kallsyms])
...
Signed-off-by: He Kuang
---
tools/perf/builtin-script.c | 23 +--
1 file changed
ility to output data as
perf sample event. This helper simple call the new trace event and
userspace perf tools can record the BPF ftrace event to collect those
records.
Signed-off-by: He Kuang
Acked-by: Alexei Starovoitov
---
include/trace/events/bpf.h | 30 ++
in
top
half of __data_loc_##item field. This patch adds new arg type
PRINT_DYNAMIC_ARRAY_LEN to return the length to eval_num_arg(),
Signed-off-by: He Kuang
---
tools/lib/traceevent/event-parse.c | 56 +-
tools/lib/traceevent/event-parse.h | 1
array. For we print the bpf output data in byte
array from patch v5, that problem does not affect our patch any more,
but some comments in patch 1/2 is updated.
Patch 2/2 is acked by Alexei.
Thank you.
He Kuang (2):
tools lib traceevent: Support function __get_dynamic_array_len
bpf: Introduce
1 - 100 of 419 matches
Mail list logo
