• Arnaldo Carvalho de Melo's avatar
    perf tools: Build syscall table .c header from kernel's syscall_64.tbl · 1b700c99
    Arnaldo Carvalho de Melo authored
    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-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
    [ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    1b700c99
Build 5.36 KB