• Arnaldo Carvalho de Melo's avatar
    perf kallsyms: Introduce tool to look for extended symbol information on the running kernel · 35563771
    Arnaldo Carvalho de Melo authored
    Its similar to doing grep on a /proc/kallsyms, but it also shows extra
    information like the path to the kernel module and the unrelocated
    addresses in it, to help in diagnosing problems.
    It is also helps demonstrate the use of the symbols routines so that
    tool writers can use them more effectively.
    Using it:
      $ perf kallsyms e1000_xmit_frame netif_rx usb_stor_set_xfer_buf
      e1000_xmit_frame: [e1000e] /lib/modules/4.9.0+/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko 0xffffffffc046fc10-0xffffffffc0470bb0 (0x19c80-0x1ac20)
      netif_rx: [kernel] [kernel.kallsyms] 0xffffffff916f03a0-0xffffffff916f0410 (0xffffffff916f03a0-0xffffffff916f0410)
      usb_stor_set_xfer_buf: [usb_storage] /lib/modules/4.9.0+/kernel/drivers/usb/storage/usb-storage.ko 0xffffffffc057aea0-0xffffffffc057af19 (0xf10-0xf89)
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Masami Hiramatsu <mhiramat@kernel.org>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: http://lkml.kernel.org/n/tip-79bk9pakujn4l4vq0f90klv3@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
builtin-kallsyms.c 1.7 KB