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2018-07-30perf tools: Fix the build on the alpine:edge distroArnaldo Carvalho de Melo
The UAPI file byteorder/little_endian.h uses the __always_inline define without including the header where it is defined, linux/stddef.h, this ends up working in all the other distros because that file gets included seemingly by luck from one of the files included from little_endian.h. But not on Alpine:edge, that fails for all files where perf_event.h is included but linux/stddef.h isn't include before that. Adding the missing linux/stddef.h file where it breaks on Alpine:edge to fix that, in all other distros, that is just a very small header anyway. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-9r1pifftxvuxms8l7ir73p5l@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-30tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'Arnaldo Carvalho de Melo
To cope with the changes in: 12c89130a56a ("x86/asm/memcpy_mcsafe: Add write-protection-fault handling") 60622d68227d ("x86/asm/memcpy_mcsafe: Return bytes remaining") bd131544aa7e ("x86/asm/memcpy_mcsafe: Add labels for __memcpy_mcsafe() write fault handling") da7bc9c57eb0 ("x86/asm/memcpy_mcsafe: Remove loop unrolling") This needed introducing a file with a copy of the mcsafe_handle_tail() function, that is used in the new memcpy_64.S file, as well as a dummy mcsafe_test.h header. Testing it: $ nm ~/bin/perf | grep mcsafe 0000000000484130 T mcsafe_handle_tail 0000000000484300 T __memcpy_mcsafe $ $ perf bench mem memcpy # Running 'mem/memcpy' benchmark: # function 'default' (Default memcpy() provided by glibc) # Copying 1MB bytes ... 44.389205 GB/sec # function 'x86-64-unrolled' (unrolled memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 22.710756 GB/sec # function 'x86-64-movsq' (movsq-based memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 42.459239 GB/sec # function 'x86-64-movsb' (movsb-based memcpy() in arch/x86/lib/memcpy_64.S) # Copying 1MB bytes ... 42.459239 GB/sec $ This silences this perf tools build warning: Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mika Penttilä <mika.penttila@nextfour.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-igdpciheradk3gb3qqal52d0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-30tools headers uapi: Refresh linux/bpf.h copyArnaldo Carvalho de Melo
To get the changes in: 4c79579b44b1 ("bpf: Change bpf_fib_lookup to return lookup status") That do not entail changes in tools/perf/ use of it, elliminating the following perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-yei494y6b3mn6bjzz9g0ws12@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-30tools headers powerpc: Update asm/unistd.h copy to pick newArnaldo Carvalho de Melo
The new 'io_pgetevents' syscall was wired up in PowerPC in the following cset: b2f82565f2ca ("powerpc: Wire up io_pgetevents") Update tools/arch/powerpc/ copy of the asm/unistd.h file so that 'perf trace' on PowerPC gets it in its syscall table. This elliminated the following perf build warning: Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/unistd.h' differs from latest version at 'arch/powerpc/include/uapi/asm/unistd.h' Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Breno Leitao <leitao@debian.org> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: https://lkml.kernel.org/n/tip-9uvu7tz4ud3bxxfyxwryuz47@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-30tools headers uapi: Update tools's copy of linux/perf_event.hArnaldo Carvalho de Melo
To get the changes in: 6cbc304f2f36 ("perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)") That do not imply any changes in the tooling side, the (ab)use of sample_type is entirely done in kernel space, nothing for userspace to witness here. This cures the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-o64mjoy35s9gd1gitunw1zg4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-30powerpc: clean inclusions of asm/feature-fixups.hChristophe Leroy
files not using feature fixup don't need asm/feature-fixups.h files using feature fixup need asm/feature-fixups.h Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-30powerpc: move ASM_CONST and stringify_in_c() into asm-const.hChristophe Leroy
This patch moves ASM_CONST() and stringify_in_c() into dedicated asm-const.h, then cleans all related inclusions. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: asm-compat.h should include asm-const.h] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-30Merge 4.18-rc7 into staging-nextGreg Kroah-Hartman
We want the staging changes in here for testing and merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-30Merge 4.18-rc7 into usb-nextGreg Kroah-Hartman
We want the USB fixes in here as well to handle merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-29selftests: mlxsw: qos_dscp_bridge: FixPetr Machata
There are two problems in this test case: - When indexing in bash associative array, the subscript is interpreted as string, not as a variable name to be expanded. - The keys stored to t0s and t1s are not DSCP values, but priority + base (i.e. the logical DSCP value, not the full bitfield value). In combination these two bugs conspire to make the test just work, except it doesn't really test anything and always passes. Fix the above two problems in obvious manner. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29selftests: add a selftest for directed broadcast forwardingXin Long
As Ido's suggestion, this patch is to add a selftest for directed broadcast forwarding with vrf. It does the assertion by checking the src IP of the echo-reply packet in ping_test_from. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29Merge branch 'turbostat' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat utility fixes for 4.18 from Len Brown: "Three of them are for regressions since Linux-4.17" * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: version 18.07.27 tools/power turbostat: Read extended processor family from CPUID tools/power turbostat: Fix logical node enumeration to allow for non-sequential physical nodes tools/power turbostat: fix x2apic debug message output file tools/power turbostat: fix bogus summary values tools/power turbostat: fix -S on UP systems tools/power turbostat: Update turbostat(8) RAPL throttling column description
2018-07-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-07-28 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) API fixes for libbpf's BTF mapping of map key/value types in order to make them compatible with iproute2's BPF_ANNOTATE_KV_PAIR() markings, from Martin. 2) Fix AF_XDP to not report POLLIN prematurely by using the non-cached consumer pointer of the RX queue, from Björn. 3) Fix __xdp_return() to check for NULL pointer after the rhashtable lookup that retrieves the allocator object, from Taehee. 4) Fix x86-32 JIT to adjust ebp register in prologue and epilogue by 4 bytes which got removed from overall stack usage, from Wang. 5) Fix bpf_skb_load_bytes_relative() length check to use actual packet length, from Daniel. 6) Fix uninitialized return code in libbpf bpf_perf_event_read_simple() handler, from Thomas. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-28perf build: Build error in libbpf missing initializationThomas Richter
In linux-next tree compiling the perf tool with additional make flags EXTRA_CFLAGS="-Wp,-D_FORTIFY_SOURCE=2 -O2" causes a compiler error. It is the warning 'variable may be used uninitialized' which is treated as error: I compile it using a FEDORA 28 installation, my gcc compiler version: gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20). The file that causes the error is tools/lib/bpf/libbpf.c. [root@p23lp27] # make V=1 EXTRA_CFLAGS="-Wp,-D_FORTIFY_SOURCE=2 -O2" [...] Makefile.config:849: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' CC libbpf.o libbpf.c: In function ‘bpf_perf_event_read_simple’: libbpf.c:2342:6: error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized] int ret; ^ cc1: all warnings being treated as errors mv: cannot stat './.libbpf.o.tmp': No such file or directory /home6/tmricht/linux-next/tools/build/Makefile.build:96: recipe for target 'libbpf.o' failed Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-27selftests: mlxsw: Add test for trust-DSCPPetr Machata
Add a test that exercises the new code. Send DSCP-tagged packets, and observe how they are prioritized in the switch and the DSCP is updated on egress again. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27tools/power turbostat: version 18.07.27Len Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2018-07-27tools/power turbostat: Read extended processor family from CPUIDCalvin Walton
This fixes the reported family on modern AMD processors (e.g. Ryzen, which is family 0x17). Previously these processors all showed up as family 0xf. See the document https://support.amd.com/TechDocs/56255_OSRR.pdf section CPUID_Fn00000001_EAX for how to calculate the family from the BaseFamily and ExtFamily values. This matches the code in arch/x86/lib/cpu.c Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by: Len Brown <len.brown@intel.com>
2018-07-27Merge tag 'trace-v4.18-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Various fixes to the tracing infrastructure: - Fix double free when the reg() call fails in event_trigger_callback() - Fix anomoly of snapshot causing tracing_on flag to change - Add selftest to test snapshot and tracing_on affecting each other - Fix setting of tracepoint flag on error that prevents probes from being deleted. - Fix another possible double free that is similar to event_trigger_callback() - Quiet a gcc warning of a false positive unused variable - Fix crash of partial exposed task->comm to trace events" * tag 'trace-v4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: kthread, tracing: Don't expose half-written comm when creating kthreads tracing: Quiet gcc warning about maybe unused link variable tracing: Fix possible double free in event_enable_trigger_func() tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure selftests/ftrace: Add snapshot and tracing_on test case ring_buffer: tracing: Inherit the tracing setting to next ring buffer tracing: Fix double free of event_trigger_data
2018-07-27tools/virtio: add kmalloc_array stubMichael S. Tsirkin
Fixes: 6da2ec56059 ("treewide: kmalloc() -> kmalloc_array()") Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-07-27tools/virtio: add dma barrier stubsMichael S. Tsirkin
Fixes: 55e49dc43a8 ("virtio_ring: switch to dma_XX barriers for rpmsg") Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-07-27tools: libbpf: add bpf_object__find_program_by_title()Jakub Kicinski
Allow users to find programs by section names. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-27tools: libbpf: handle NULL program gracefully in bpf_program__nth_fd()Jakub Kicinski
bpf_map__fd() handles NULL map gracefully and returns -EINVAL. bpf_program__fd() and bpf_program__nth_fd() crash in this case. Make the behaviour more consistent by validating prog pointer as well. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-27bpf: btf: Use exact btf value_size match in map_check_btf()Martin KaFai Lau
The current map_check_btf() in BPF_MAP_TYPE_ARRAY rejects '> map->value_size' to ensure map_seq_show_elem() will not access things beyond an array element. Yonghong suggested that using '!=' is a more correct check. The 8 bytes round_up on value_size is stored in array->elem_size. Hence, using '!=' on map->value_size is a proper check. This patch also adds new tests to check the btf array key type and value type. Two of these new tests verify the btf's value_size (the change in this patch). It also fixes two existing tests that wrongly encoded a btf's type size (pprint_test) and the value_type_id (in one of the raw_tests[]). However, that do not affect these two BTF verification tests before or after this test changes. These two tests mainly failed at array creation time after this patch. Fixes: a26ca7c982cb ("bpf: btf: Add pretty print support to the basic arraymap") Suggested-by: Yonghong Song <yhs@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-26tools/power turbostat: Fix logical node enumeration to allow for ↵Prarit Bhargava
non-sequential physical nodes turbostat fails on some multi-package topologies because the logical node enumeration assumes that the nodes are sequentially numbered, which causes the logical numa nodes to not be enumerated, or enumerated incorrectly. Use a more robust enumeration algorithm which allows for non-seqential physical nodes. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2018-07-26tools/power turbostat: fix x2apic debug message output fileLen Brown
A recently added x2apic debug message was hard-coded to stderr. That doesn't work with "-o outfile". Signed-off-by: Len Brown <len.brown@intel.com>
2018-07-26tools/power turbostat: fix bogus summary valuesArtem Bityutskiy
This patch fixes a regression introduced in commit 8cb48b32a5de ("tools/power turbostat: track thread ID in cpu_topology") Turbostat uses incorrect cores number ('topo.num_cores') - its value is count of logical CPUs, instead of count of physical cores. So it is twice as large as it should be on a typical Intel system. For example, on a 6 core Xeon system 'topo.num_cores' is 12, and on a 52 core Xeon system 'topo.num_cores' is 104. And interestingly, on a 68-core Knights Landing Intel system 'topo.num_cores' is 272, because this system has 4 logical CPUs per core. As a result, some of the turbostat calculations are incorrect. For example, on idle 52-core Xeon system when all cores are ~99% in Core C6 (CPU%c6), the summary (very first) line shows ~48% Core C6, while it should be ~99%. This patch fixes the problem by fixing 'topo.num_cores' calculation. Was: 1. Init 'thread_id' for all CPUs to -1 2. Run 'get_thread_siblings()' which sets it to 0 or 1 3. Increment 'topo.num_cores' when thread_id != -1 (bug!) Now: 1. Init 'thread_id' for all CPUs to -1 2. Run 'get_thread_siblings()' which sets it to 0 or 1 3. Increment 'topo.num_cores' when thread_id is not 0 I did not have a chance to test this on an AMD machine, and only tested on a couple of Intel Xeons (6 and 52 cores). Reported-by: Vladislav Govtva <vladislav.govtva@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2018-07-26selftests/net: add tls to .gitignoreAnders Roxell
Add the tls binary to .gitignore Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26selftests: forwarding: add tests for TC chain get and dump operationsJiri Pirko
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26Merge tag 'usb-4.18-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of USB fixes and new device ids for 4.18-rc7. The largest number are a bunch of gadget driver fixes that got delayed in being submitted earlier due to vacation schedules, but nothing really huge is present in them. There are some new device ids and some PHY driver fixes that were connected to some USB ones. Full details are in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'usb-4.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits) usb: core: handle hub C_PORT_OVER_CURRENT condition usb: xhci: Fix memory leak in xhci_endpoint_reset() usb: typec: tcpm: Fix sink PDO starting index for PPS APDO selection usb: gadget: f_fs: Only return delayed status when len is 0 usb: gadget: f_uac2: fix endianness of 'struct cntrl_*_lay3' usb: dwc2: Fix inefficient copy of unaligned buffers usb: dwc2: Fix DMA alignment to start at allocated boundary usb: dwc3: rockchip: Fix PHY documentation links. tools: usb: ffs-test: Fix build on big endian systems usb: gadget: aspeed: Workaround memory ordering issue usb: dwc3: gadget: remove redundant variable maxpacket usb: dwc2: avoid NULL dereferences usb/phy: fix PPC64 build errors in phy-fsl-usb.c usb: dwc2: host: do not delay retries for CONTROL IN transfers usb: gadget: u_audio: protect stream runtime fields with stream spinlock usb: gadget: u_audio: remove cached period bytes value usb: gadget: u_audio: remove caching of stream buffer parameters usb: gadget: u_audio: update hw_ptr in iso_complete after data copied usb: gadget: u_audio: fix pcm/card naming in g_audio_setup() usb: gadget: f_uac2: fix error handling in afunc_bind (again) ...
2018-07-26kselftests: Add tests for the preemptoff and irqsoff tracersJoel Fernandes (Google)
Here we add unit tests for the preemptoff and irqsoff tracer by using a kernel module introduced previously to trigger long preempt or irq disabled sections in the kernel. Link: http://lkml.kernel.org/r/20180711063540.91101-3-joel@joelfernandes.org Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-07-26tools/bpftool: ignore build productsTaeung Song
For untracked things of tools/bpf, add this. Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-25selftests/ftrace: Add snapshot and tracing_on test caseMasami Hiramatsu
Add a testcase for checking snapshot and tracing_on relationship. This ensures that the snapshotting doesn't affect current tracing on/off settings. Link: http://lkml.kernel.org/r/153149932412.11274.15289227592627901488.stgit@devbox Cc: Tom Zanussi <tom.zanussi@linux.intel.com> Cc: Hiraku Toyooka <hiraku.toyooka@cybertrust.co.jp> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-07-25Merge tag 'iio-for-4.19b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second set of IIO new device support, features and cleanups. There are also a couple of fixes that can wait for the coming merge window. Core new features * Support for phase channels (used in time of flight sensors amongst other things) * Support for deep UV light channel modifier. New Device Support * AD4758 DAC - New driver and dt bindings. * adxl345 - Support the adxl375 +-200g part which is register compatible. * isl29501 Time of flight sensor. - New driver * meson-saradc - Support the Meson8m2 Socs - right now this is just an ID, but there will be additional difference in future. * mpu6050 - New ID for 6515 variant. * si1133 UV sensor. - New driver * Spreadtrum SC27xx PMIC ADC - New driver and dt bindings. Features * adxl345 - Add calibration offset readback and writing. - Add sampling frequency control. Fixes and Cleanups * ad5933 - Use a macro for the channel definition to reduce duplication. * ad9523 - Replace use of core mlock with a local lock. Part of ongoing efforts to avoid confusing the purpose of mlock which is only about iio core state changes. - Fix displayed phase which was out by a factor of 10. * adxl345 - Add a link to the datasheet. - Rework the use of the address field in the chan_spec structures to allow addition of more per channel information. * adis imu - Mark switch fall throughs. * at91-sama5d2 - Fix some casting on big endian systems. * bmp280 - Drop some DT elements that aren't used and should mostly be done from userspace rather than in DT. * hx711 - add clock-frequency dt binding and resulting delay to deal with capacitance issue on some boards. - fix a spurious unit-address in the example. * ina2xx - Avoid a possible kthread_stop with a stale task_struct. * ltc2632 - Remove some unused local variables (assigned but value never used). * max1363 - Use device_get_match_data to remove some boilerplate. * mma8452 - Mark switch fall throughs. * sca3000 - Fix a missing return in a switch statement (a bad fallthrough previously!) * sigma-delta-modulator - Drop incorrect unit address from the DT example. * st_accel - Use device_get_match_data to drop some boiler plate. - Move to probe_new for i2c driver as second parameter not used. * st_sensors library - Use a strlcpy (safe in this case). * st_lsm6dsx - Add some error logging. * ti-ads7950 - SPDX - Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms EV3 where some channels are used for power supply monitoring at a very low rate. * ti-dac5571 - Remove an unused variable. * xadc - Drop some dead code.
2018-07-25bpf: Add Python 3 support to selftests scripts for bpfJeremy Cline
Adjust tcp_client.py and tcp_server.py to work with Python 3 by using the print function, marking string literals as bytes, and using the newer exception syntax. This should be functionally equivalent and supports Python 3+. Signed-off-by: Jeremy Cline <jcline@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-25bpf: btf: fix inconsistent IS_ERR and PTR_ERRYueHaibing
Fix inconsistent IS_ERR and PTR_ERR in get_btf, the proper pointer to be passed as argument is '*btf' This issue was detected with the help of Coccinelle. Fixes: 2d3feca8c44f ("bpf: btf: print map dump and lookup with btf info") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-25bpf: Introduce BPF_ANNOTATE_KV_PAIRMartin KaFai Lau
This patch introduces BPF_ANNOTATE_KV_PAIR to signal the bpf loader about the btf key_type and value_type of a bpf map. Please refer to the changes in test_btf_haskv.c for its usage. Both iproute2 and libbpf loader will then have the same convention to find out the map's btf_key_type_id and btf_value_type_id from a map's name. Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf") Suggested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-25bpf: Replace [u]int32_t and [u]int64_t in libbpfMartin KaFai Lau
This patch replaces [u]int32_t and [u]int64_t usage with __[su]32 and __[su]64. The same change goes for [u]int16_t and [u]int8_t. Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf") Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-25bpf: btf: Sync uapi btf.h to toolsMartin KaFai Lau
This patch sync the uapi btf.h to tools/ Fixes: 36fc3c8c282c bpf: btf: Clean up BTF_INT_BITS() in uapi btf.h Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-24Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2018-07-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Handle stations tied to AP_VLANs properly during mac80211 hw reconfig. From Manikanta Pubbisetty. 2) Fix jump stack depth validation in nf_tables, from Taehee Yoo. 3) Fix quota handling in aRFS flow expiration of mlx5 driver, from Eran Ben Elisha. 4) Exit path handling fix in powerpc64 BPF JIT, from Daniel Borkmann. 5) Use ptr_ring_consume_bh() in page pool code, from Tariq Toukan. 6) Fix cached netdev name leak in nf_tables, from Florian Westphal. 7) Fix memory leaks on chain rename, also from Florian Westphal. 8) Several fixes to DCTCP congestion control ACK handling, from Yuchunk Cheng. 9) Missing rcu_read_unlock() in CAIF protocol code, from Yue Haibing. 10) Fix link local address handling with VRF, from David Ahern. 11) Don't clobber 'err' on a successful call to __skb_linearize() in skb_segment(). From Eric Dumazet. 12) Fix vxlan fdb notification races, from Roopa Prabhu. 13) Hash UDP fragments consistently, from Paolo Abeni. 14) If TCP receives lots of out of order tiny packets, we do really silly stuff. Make the out-of-order queue ending more robust to this kind of behavior, from Eric Dumazet. 15) Don't leak netlink dump state in nf_tables, from Florian Westphal. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits) net: axienet: Fix double deregister of mdio qmi_wwan: fix interface number for DW5821e production firmware ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull bnx2x: Fix invalid memory access in rss hash config path. net/mlx4_core: Save the qpn from the input modifier in RST2INIT wrapper r8169: restore previous behavior to accept BIOS WoL settings cfg80211: never ignore user regulatory hint sock: fix sg page frag coalescing in sk_alloc_sg netfilter: nf_tables: move dumper state allocation into ->start tcp: add tcp_ooo_try_coalesce() helper tcp: call tcp_drop() from tcp_data_queue_ofo() tcp: detect malicious patterns in tcp_collapse_ofo_queue() tcp: avoid collapses in tcp_prune_queue() if possible tcp: free batches of packets in tcp_prune_ofo_queue() ip: hash fragments consistently ipv6: use fib6_info_hold_safe() when necessary can: xilinx_can: fix power management handling can: xilinx_can: fix incorrect clear of non-processed interrupts can: xilinx_can: fix RX overflow interrupt not being enabled can: xilinx_can: keep only 1-2 frames in TX FIFO to fix TX accounting ...
2018-07-24perf test: Fix subtest number when showing resultsThomas Richter
Perf test 40 for example has several subtests numbered 1-4 when displaying the start of the subtest. When the subtest results are displayed the subtests are numbered 0-3. Use this command to generate trace output: [root@s35lp76 perf]# ./perf test -Fv 40 2>/tmp/bpf1 Fix this by adjusting the subtest number when show the subtest result. Output before: [root@s35lp76 perf]# egrep '(^40\.[0-4]| subtest [0-4]:)' /tmp/bpf1 40.1: Basic BPF filtering : BPF filter subtest 0: Ok 40.2: BPF pinning : BPF filter subtest 1: Ok 40.3: BPF prologue generation : BPF filter subtest 2: Ok 40.4: BPF relocation checker : BPF filter subtest 3: Ok [root@s35lp76 perf]# Output after: root@s35lp76 ~]# egrep '(^40\.[0-4]| subtest [0-4]:)' /tmp/bpf1 40.1: Basic BPF filtering : BPF filter subtest 1: Ok 40.2: BPF pinning : BPF filter subtest 2: Ok 40.3: BPF prologue generation : BPF filter subtest 3: Ok 40.4: BPF relocation checker : BPF filter subtest 4: Ok [root@s35lp76 ~]# Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Link: http://lkml.kernel.org/r/20180724134858.100644-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf stat: Get rid of extra clock display functionJiri Olsa
There's no reason to have separate function to display clock events. It's only purpose was to convert the nanosecond value into microseconds. We do that now in generic code, if the unit and scale values are properly set, which this patch do for clock events. The output differs in the unit field being displayed in its columns rather than having it added as a suffix of the event name. Plus the value is rounded into 2 decimal numbers as for any other event. Before: # perf stat -e cpu-clock,task-clock -C 0 sleep 3 Performance counter stats for 'CPU(s) 0': 3001.123137 cpu-clock (msec) # 1.000 CPUs utilized 3001.133250 task-clock (msec) # 1.000 CPUs utilized 3.001159813 seconds time elapsed Now: # perf stat -e cpu-clock,task-clock -C 0 sleep 3 Performance counter stats for 'CPU(s) 0': 3,001.05 msec cpu-clock # 1.000 CPUs utilized 3,001.05 msec task-clock # 1.000 CPUs utilized 3.001077794 seconds time elapsed There's a small difference in csv output, as we now output the unit field, which was empty before. It's in the proper spot, so there's no compatibility issue. Before: # perf stat -e cpu-clock,task-clock -C 0 -x, sleep 3 3001.065177,,cpu-clock,3001064187,100.00,1.000,CPUs utilized 3001.077085,,task-clock,3001077085,100.00,1.000,CPUs utilized # perf stat -e cpu-clock,task-clock -C 0 -x, sleep 3 3000.80,msec,cpu-clock,3000799026,100.00,1.000,CPUs utilized 3000.80,msec,task-clock,3000799550,100.00,1.000,CPUs utilized Add perf_evsel__is_clock to replace nsec_counter. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180720110036.32251-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf tools: Use perf_evsel__match instead of open coded equivalentJiri Olsa
Use perf_evsel__match() helper in perf_evsel__is_bpf_output(). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180720110036.32251-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf tools: Fix struct comm_str removal crashJiri Olsa
We occasionaly hit following assert failure in 'perf top', when processing the /proc info in multiple threads. perf: ...include/linux/refcount.h:109: refcount_inc: Assertion `!(!refcount_inc_not_zero(r))' failed. The gdb backtrace looks like this: [Switching to Thread 0x7ffff11ba700 (LWP 13749)] 0x00007ffff50839fb in raise () from /lib64/libc.so.6 (gdb) #0 0x00007ffff50839fb in raise () from /lib64/libc.so.6 #1 0x00007ffff5085800 in abort () from /lib64/libc.so.6 #2 0x00007ffff507c0da in __assert_fail_base () from /lib64/libc.so.6 #3 0x00007ffff507c152 in __assert_fail () from /lib64/libc.so.6 #4 0x0000000000535373 in refcount_inc (r=0x7fffdc009be0) at ...include/linux/refcount.h:109 #5 0x00000000005354f1 in comm_str__get (cs=0x7fffdc009bc0) at util/comm.c:24 #6 0x00000000005356bd in __comm_str__findnew (str=0x7fffd000b260 ":2", root=0xbed5c0 <comm_str_root>) at util/comm.c:72 #7 0x000000000053579e in comm_str__findnew (str=0x7fffd000b260 ":2", root=0xbed5c0 <comm_str_root>) at util/comm.c:95 #8 0x000000000053582e in comm__new (str=0x7fffd000b260 ":2", timestamp=0, exec=false) at util/comm.c:111 #9 0x00000000005363bc in thread__new (pid=2, tid=2) at util/thread.c:57 #10 0x0000000000523da0 in ____machine__findnew_thread (machine=0xbfde38, threads=0xbfdf28, pid=2, tid=2, create=true) at util/machine.c:457 #11 0x0000000000523eb4 in __machine__findnew_thread (machine=0xbfde38, ... The failing assertion is this one: REFCOUNT_WARN(!refcount_inc_not_zero(r), ... The problem is that we keep global comm_str_root list, which is accessed by multiple threads during the 'perf top' startup and following 2 paths can race: thread 1: ... thread__new comm__new comm_str__findnew down_write(&comm_str_lock); __comm_str__findnew comm_str__get thread 2: ... comm__override or comm__free comm_str__put refcount_dec_and_test down_write(&comm_str_lock); rb_erase(&cs->rb_node, &comm_str_root); Because thread 2 first decrements the refcnt and only after then it removes the struct comm_str from the list, the thread 1 can find this object on the list with refcnt equls to 0 and hit the assert. This patch fixes the thread 1 __comm_str__findnew path, by ignoring objects that already dropped the refcnt to 0. For the rest of the objects we take the refcnt before comparing its name and release it afterwards with comm_str__put, which can also release the object completely. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: kernel-team@lge.com Link: http://lkml.kernel.org/r/20180720101740.GA27176@krava Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf machine: Use last_match threads cache only in single thread modeJiri Olsa
There's an issue with using threads::last_match in multithread mode which is enabled during the perf top synthesize. It might crash with following assertion: perf: ...include/linux/refcount.h:109: refcount_inc: Assertion `!(!refcount_inc_not_zero(r))' failed. The gdb backtrace looks like this: 0x00007ffff50839fb in raise () from /lib64/libc.so.6 (gdb) #0 0x00007ffff50839fb in raise () from /lib64/libc.so.6 #1 0x00007ffff5085800 in abort () from /lib64/libc.so.6 #2 0x00007ffff507c0da in __assert_fail_base () from /lib64/libc.so.6 #3 0x00007ffff507c152 in __assert_fail () from /lib64/libc.so.6 #4 0x0000000000535ff9 in refcount_inc (r=0x7fffe8009a70) at ...include/linux/refcount.h:109 #5 0x0000000000536771 in thread__get (thread=0x7fffe8009a40) at util/thread.c:115 #6 0x0000000000523cd0 in ____machine__findnew_thread (machine=0xbfde38, threads=0xbfdf28, pid=2, tid=2, create=true) at util/machine.c:432 #7 0x0000000000523eb4 in __machine__findnew_thread (machine=0xbfde38, pid=2, tid=2) at util/machine.c:489 #8 0x0000000000523f24 in machine__findnew_thread (machine=0xbfde38, pid=2, tid=2) at util/machine.c:499 #9 0x0000000000526fbe in machine__process_fork_event (machine=0xbfde38, ... The failing assertion is this one: REFCOUNT_WARN(!refcount_inc_not_zero(r), ... the problem is that we don't serialize access to threads::last_match. We serialize the access to the threads tree, but we don't care how's threads::last_match being accessed. Both locked/unlocked paths use that data and can set it. In multithreaded mode we can end up with invalid object in thread__get call, like in following paths race: thread 1 ... machine__findnew_thread down_write(&threads->lock); __machine__findnew_thread ____machine__findnew_thread th = threads->last_match; if (th->tid == tid) { thread__get thread 2 ... machine__find_thread down_read(&threads->lock); __machine__findnew_thread ____machine__findnew_thread th = threads->last_match; if (th->tid == tid) { thread__get thread 3 ... machine__process_fork_event machine__remove_thread __machine__remove_thread threads->last_match = NULL thread__put thread__put Thread 1 and 2 might got stale last_match, before thread 3 clears it. Thread 1 and 2 then race with thread 3's thread__put and they might trigger the refcnt == 0 assertion above. The patch is disabling the last_match cache for multiple thread mode. It was originally meant for single thread scenarios, where it's common to have multiple sequential searches of the same thread. In multithread mode this does not make sense, because top's threads processes different /proc entries and so the 'struct threads' object is queried for various threads. Moreover we'd need to add more locks to make it work. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20180719143345.12963-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf machine: Add threads__set_last_match functionJiri Olsa
Separating threads::last_match cache set into separate threads__set_last_match function. This will be useful in following patch. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20180719143345.12963-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf machine: Add threads__get_last_match functionJiri Olsa
Separating threads::last_match cache read/check into separate threads__get_last_match function. This will be useful in following patch. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20180719143345.12963-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf tools: Synthesize GROUP_DESC feature in pipe modeJiri Olsa
Stephan reported, that pipe mode does not carry the group information and thus the piped report won't display the grouped output for following command: # perf record -e '{cycles,instructions,branches}' -a sleep 4 | perf report It has no idea about the group setup, so it will display events separately: # Overhead Command Shared Object ... # ........ ............... ....................... # 6.71% swapper [kernel.kallsyms] 2.28% offlineimap libpython2.7.so.1.0 0.78% perf [kernel.kallsyms] ... Fix GROUP_DESC feature record to be synthesized in pipe mode, so the report output is grouped if there are groups defined in record: # Overhead Command Shared ... # ........................ ............... ....... # 7.57% 0.16% 0.30% swapper [kernel 1.87% 3.15% 2.46% offlineimap libpyth 1.33% 0.00% 0.00% perf [kernel ... Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Stephane Eranian <eranian@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180712135202.14774-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf script: Show correct offsets for DWARF-based unwindingSandipan Das
When perf/data is recorded with the dwarf call-graph option, the callchain shown by 'perf script' still shows the binary offsets of the userspace symbols instead of their virtual addresses. Since the symbol offset calculation is based on using virtual address as the ip, we see incorrect offsets as well. The use of virtual addresses affects the ability to find out the line number in the corresponding source file to which an address maps to as described in commit 67540759151a ("perf unwind: Use addr_location::addr instead of ip for entries"). This has also been addressed by temporarily converting the virtual address to the correponding binary offset so that it can be mapped to the source line number correctly. This is a follow-up for commit 19610184693c ("perf script: Show virtual addresses instead of offsets"). This can be verified on a powerpc64le system running Fedora 27 as shown below: # perf probe -x /usr/lib64/libc-2.26.so -a inet_pton # perf record -e probe_libc:inet_pton --call-graph=dwarf ping -6 -c 1 ::1 Before: # perf report --stdio --no-children -s sym,srcline -g address # Samples: 1 of event 'probe_libc:inet_pton' # Event count (approx.): 1 # # Overhead Symbol Source:Line # ........ .................... ........... # 100.00% [.] __GI___inet_pton inet_pton.c | ---gaih_inet getaddrinfo.c:537 (inlined) __GI_getaddrinfo getaddrinfo.c:2304 (inlined) main ping.c:519 generic_start_main libc-start.c:308 (inlined) __libc_start_main libc-start.c:102 ... # perf script -F comm,ip,sym,symoff,srcline,dso ping 15af28 __GI___inet_pton+0xffff000099160008 (/usr/lib64/libc-2.26.so) libc-2.26.so[ffff80004ca0af28] 10fa53 gaih_inet+0xffff000099160f43 libc-2.26.so[ffff80004c9bfa53] (inlined) 1105b3 __GI_getaddrinfo+0xffff000099160163 libc-2.26.so[ffff80004c9c05b3] (inlined) 2d6f main+0xfffffffd9f1003df (/usr/bin/ping) ping[fffffffecf882d6f] 2369f generic_start_main+0xffff00009916013f libc-2.26.so[ffff80004c8d369f] (inlined) 23897 __libc_start_main+0xffff0000991600b7 (/usr/lib64/libc-2.26.so) libc-2.26.so[ffff80004c8d3897] After: # perf report --stdio --no-children -s sym,srcline -g address # Samples: 1 of event 'probe_libc:inet_pton' # Event count (approx.): 1 # # Overhead Symbol Source:Line # ........ .................... ........... # 100.00% [.] __GI___inet_pton inet_pton.c | ---gaih_inet.constprop.7 getaddrinfo.c:537 getaddrinfo getaddrinfo.c:2304 main ping.c:519 generic_start_main.isra.0 libc-start.c:308 __libc_start_main libc-start.c:102 ... # perf script -F comm,ip,sym,symoff,srcline,dso ping 7fffb38aaf28 __GI___inet_pton+0x8 (/usr/lib64/libc-2.26.so) inet_pton.c:68 7fffb385fa53 gaih_inet.constprop.7+0xf43 (/usr/lib64/libc-2.26.so) getaddrinfo.c:537 7fffb38605b3 getaddrinfo+0x163 (/usr/lib64/libc-2.26.so) getaddrinfo.c:2304 130782d6f main+0x3df (/usr/bin/ping) ping.c:519 7fffb377369f generic_start_main.isra.0+0x13f (/usr/lib64/libc-2.26.so) libc-start.c:308 7fffb3773897 __libc_start_main+0xb7 (/usr/lib64/libc-2.26.so) libc-start.c:102 Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Fixes: 67540759151a ("perf unwind: Use addr_location::addr instead of ip for entries") Link: http://lkml.kernel.org/r/20180703120555.32971-1-sandipan@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24perf trace arm64: Use generated syscall tableKim Phillips
This should speed up accessing new system calls introduced with the kernel rather than waiting for libaudit updates to include them. It also enables users to specify wildcards, for example, perf trace -e 'open*', just like was already possible on x86, s390, and powerpc, which means arm64 can now pass the "Check open filename arg using perf trace + vfs_getname" test. Signed-off-by: Kim Phillips <kim.phillips@arm.com> Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20180706163454.f714b9ab49ecc8566a0b3565@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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