Messages in this thread | | | Subject | Re: [PATCH 17/19] perf tools: Build syscall table .c header from kernel's syscall_64.tbl | From | "Wangnan (F)" <> | Date | Fri, 8 Apr 2016 11:27:10 +0800 |
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On 2016/4/8 4:58, Arnaldo Carvalho de Melo wrote: > From: Arnaldo Carvalho de Melo <acme@redhat.com> > > We used libaudit to map ids to syscall names and vice-versa, but that > imposes a delay in supporting new syscalls, having to wait for libaudit > to get those new syscalls on its tables. > > To remove that delay, for x86_64 initially, grab a copy of > arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those > tables. > > Syscalls currently not available in audit-libs: > > # trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd > Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd > Hint: try 'perf list syscalls:sys_enter_*' > Hint: and: 'man syscalls' > # > > With this patch: > > # trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd > 8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36 > 8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40 > 30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096 > 31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096 > 31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096 > > 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: http://lkml.kernel.org/n/tip-5n4sx1wp0ig75dwcghf9m6zs@git.kernel.org > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > --- >
There is racing in Makefile. I see following output:
... CC /xx/xx/perf/1.0-r8/perf-1.0/util/callchain.o CC /xx/xx/perf/1.0-r8/perf-1.0/util/values.o CC /xx/xx/perf/1.0-r8/perf-1.0/util/debug.o make[3]: *** No rule to make target `/xx/xx/perf/1.0-r8/perf-1.0/util/syscalltbl.o'. Stop. make[3]: *** Waiting for unfinished jobs.... CC /xx/xx/perf/1.0-r8/perf-1.0/util/machine.o CC /xx/xx/perf/1.0-r8/perf-1.0/util/map.o ...
The error disappeareafter doing 'make archheaders' before 'make all'.
Thank you.
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