Revision 8142bd82a59e452fefea7b21113101d6a87d9fa8 authored by Arnaldo Carvalho de Melo on 25 March 2019, 14:34:04 UTC, committed by Arnaldo Carvalho de Melo on 28 March 2019, 17:41:11 UTC
To pick up the changes introduced in the following csets: 2b188cc1bb85 ("Add io_uring IO interface") edafccee56ff ("io_uring: add support for pre-mapped user IO buffers") 3eb39f47934f ("signal: add pidfd_send_signal() syscall") This makes 'perf trace' to become aware of these new syscalls, so that one can use them like 'perf trace -e ui_uring*,*signal' to do a system wide strace-like session looking at those syscalls, for instance. For example: # perf trace -s io_uring-cp ~acme/isos/RHEL-x86_64-dvd1.iso ~/bla Summary of events: io_uring-cp (383), 1208866 events, 100.0% syscall calls total min avg max stddev (msec) (msec) (msec) (msec) (%) -------------- ------ -------- ------ ------- ------- ------ io_uring_enter 605780 2955.615 0.000 0.005 33.804 1.94% openat 4 459.446 0.004 114.861 459.435 100.00% munmap 4 0.073 0.009 0.018 0.042 44.03% mmap 10 0.054 0.002 0.005 0.026 43.24% brk 28 0.038 0.001 0.001 0.003 7.51% io_uring_setup 1 0.030 0.030 0.030 0.030 0.00% mprotect 4 0.014 0.002 0.004 0.005 14.32% close 5 0.012 0.001 0.002 0.004 28.87% fstat 3 0.006 0.001 0.002 0.003 35.83% read 4 0.004 0.001 0.001 0.002 13.58% access 1 0.003 0.003 0.003 0.003 0.00% lseek 3 0.002 0.001 0.001 0.001 9.00% arch_prctl 2 0.002 0.001 0.001 0.001 0.69% execve 1 0.000 0.000 0.000 0.000 0.00% # # perf trace -e io_uring* -s io_uring-cp ~acme/isos/RHEL-x86_64-dvd1.iso ~/bla Summary of events: io_uring-cp (390), 1191250 events, 100.0% syscall calls total min avg max stddev (msec) (msec) (msec) (msec) (%) -------------- ------ -------- ------ ------ ------ ------ io_uring_enter 597093 2706.060 0.001 0.005 14.761 1.10% io_uring_setup 1 0.038 0.038 0.038 0.038 0.00% # More work needed to make the tools/perf/examples/bpf/augmented_raw_syscalls.c BPF program to copy the 'struct io_uring_params' arguments to perf's ring buffer so that 'perf trace' can use the BTF info put in place by pahole's conversion of the kernel DWARF and then auto-beautify those arguments. This patch produces the expected change in the generated syscalls table for x86_64: --- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2019-03-26 13:37:46.679057774 -0300 +++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2019-03-26 13:38:12.755990383 -0300 @@ -334,5 +334,9 @@ static const char *syscalltbl_x86_64[] = [332] = "statx", [333] = "io_pgetevents", [334] = "rseq", + [424] = "pidfd_send_signal", + [425] = "io_uring_setup", + [426] = "io_uring_enter", + [427] = "io_uring_register", }; -#define SYSCALLTBL_x86_64_MAX_ID 334 +#define SYSCALLTBL_x86_64_MAX_ID 427 This silences these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h' diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl' diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com> Cc: Christian Brauner <christian@brauner.io> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Link: https://lkml.kernel.org/n/tip-p0ars3otuc52x5iznf21shhw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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File | Mode | Size |
---|---|---|
bpf | ||
cgroup | ||
configs | ||
debug | ||
dma | ||
events | ||
gcov | ||
irq | ||
livepatch | ||
locking | ||
power | ||
printk | ||
rcu | ||
sched | ||
time | ||
trace | ||
.gitignore | -rw-r--r-- | 40 bytes |
Kconfig.freezer | -rw-r--r-- | 52 bytes |
Kconfig.hz | -rw-r--r-- | 1.6 KB |
Kconfig.locks | -rw-r--r-- | 4.8 KB |
Kconfig.preempt | -rw-r--r-- | 2.2 KB |
Makefile | -rw-r--r-- | 3.8 KB |
acct.c | -rw-r--r-- | 15.4 KB |
async.c | -rw-r--r-- | 10.4 KB |
audit.c | -rw-r--r-- | 61.3 KB |
audit.h | -rw-r--r-- | 11.0 KB |
audit_fsnotify.c | -rw-r--r-- | 6.0 KB |
audit_tree.c | -rw-r--r-- | 25.7 KB |
audit_watch.c | -rw-r--r-- | 14.7 KB |
auditfilter.c | -rw-r--r-- | 34.3 KB |
auditsc.c | -rw-r--r-- | 68.8 KB |
backtracetest.c | -rw-r--r-- | 2.1 KB |
bounds.c | -rw-r--r-- | 751 bytes |
capability.c | -rw-r--r-- | 14.6 KB |
compat.c | -rw-r--r-- | 10.1 KB |
configs.c | -rw-r--r-- | 2.7 KB |
context_tracking.c | -rw-r--r-- | 6.3 KB |
cpu.c | -rw-r--r-- | 54.5 KB |
cpu_pm.c | -rw-r--r-- | 6.0 KB |
crash_core.c | -rw-r--r-- | 11.5 KB |
crash_dump.c | -rw-r--r-- | 1.3 KB |
cred.c | -rw-r--r-- | 22.4 KB |
delayacct.c | -rw-r--r-- | 5.1 KB |
dma.c | -rw-r--r-- | 3.3 KB |
elfcore.c | -rw-r--r-- | 432 bytes |
exec_domain.c | -rw-r--r-- | 1.1 KB |
exit.c | -rw-r--r-- | 44.4 KB |
extable.c | -rw-r--r-- | 4.8 KB |
fail_function.c | -rw-r--r-- | 7.1 KB |
fork.c | -rw-r--r-- | 63.4 KB |
freezer.c | -rw-r--r-- | 4.5 KB |
futex.c | -rw-r--r-- | 104.1 KB |
groups.c | -rw-r--r-- | 4.9 KB |
hung_task.c | -rw-r--r-- | 7.3 KB |
iomem.c | -rw-r--r-- | 4.7 KB |
irq_work.c | -rw-r--r-- | 4.4 KB |
jump_label.c | -rw-r--r-- | 19.7 KB |
kallsyms.c | -rw-r--r-- | 17.6 KB |
kcmp.c | -rw-r--r-- | 5.7 KB |
kcov.c | -rw-r--r-- | 11.0 KB |
kexec.c | -rw-r--r-- | 7.8 KB |
kexec_core.c | -rw-r--r-- | 31.1 KB |
kexec_file.c | -rw-r--r-- | 31.9 KB |
kexec_internal.h | -rw-r--r-- | 924 bytes |
kmod.c | -rw-r--r-- | 5.0 KB |
kprobes.c | -rw-r--r-- | 63.6 KB |
ksysfs.c | -rw-r--r-- | 6.3 KB |
kthread.c | -rw-r--r-- | 34.0 KB |
latencytop.c | -rw-r--r-- | 7.9 KB |
memremap.c | -rw-r--r-- | 9.9 KB |
module-internal.h | -rw-r--r-- | 959 bytes |
module.c | -rw-r--r-- | 112.9 KB |
module_signing.c | -rw-r--r-- | 2.3 KB |
notifier.c | -rw-r--r-- | 16.3 KB |
nsproxy.c | -rw-r--r-- | 6.5 KB |
padata.c | -rw-r--r-- | 27.1 KB |
panic.c | -rw-r--r-- | 17.4 KB |
params.c | -rw-r--r-- | 23.2 KB |
pid.c | -rw-r--r-- | 11.2 KB |
pid_namespace.c | -rw-r--r-- | 11.4 KB |
profile.c | -rw-r--r-- | 14.8 KB |
ptrace.c | -rw-r--r-- | 32.4 KB |
range.c | -rw-r--r-- | 3.0 KB |
reboot.c | -rw-r--r-- | 13.9 KB |
relay.c | -rw-r--r-- | 32.1 KB |
resource.c | -rw-r--r-- | 40.9 KB |
rseq.c | -rw-r--r-- | 9.9 KB |
seccomp.c | -rw-r--r-- | 45.1 KB |
signal.c | -rw-r--r-- | 113.7 KB |
smp.c | -rw-r--r-- | 21.6 KB |
smpboot.c | -rw-r--r-- | 11.7 KB |
smpboot.h | -rw-r--r-- | 640 bytes |
softirq.c | -rw-r--r-- | 18.6 KB |
stackleak.c | -rw-r--r-- | 3.9 KB |
stacktrace.c | -rw-r--r-- | 1.8 KB |
stop_machine.c | -rw-r--r-- | 17.8 KB |
sys.c | -rw-r--r-- | 62.1 KB |
sys_ni.c | -rw-r--r-- | 9.3 KB |
sysctl.c | -rw-r--r-- | 78.4 KB |
sysctl_binary.c | -rw-r--r-- | 50.2 KB |
task_work.c | -rw-r--r-- | 3.1 KB |
taskstats.c | -rw-r--r-- | 15.4 KB |
test_kprobes.c | -rw-r--r-- | 6.4 KB |
torture.c | -rw-r--r-- | 20.8 KB |
tracepoint.c | -rw-r--r-- | 15.6 KB |
tsacct.c | -rw-r--r-- | 5.1 KB |
ucount.c | -rw-r--r-- | 5.7 KB |
uid16.c | -rw-r--r-- | 5.1 KB |
uid16.h | -rw-r--r-- | 442 bytes |
umh.c | -rw-r--r-- | 19.0 KB |
up.c | -rw-r--r-- | 2.3 KB |
user-return-notifier.c | -rw-r--r-- | 1.3 KB |
user.c | -rw-r--r-- | 5.6 KB |
user_namespace.c | -rw-r--r-- | 33.4 KB |
utsname.c | -rw-r--r-- | 4.0 KB |
utsname_sysctl.c | -rw-r--r-- | 3.4 KB |
watchdog.c | -rw-r--r-- | 21.3 KB |
watchdog_hld.c | -rw-r--r-- | 7.7 KB |
workqueue.c | -rw-r--r-- | 164.0 KB |
workqueue_internal.h | -rw-r--r-- | 2.4 KB |
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