[Bug tapsets/12748] New: need syscall-number database in tapset

[fche at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12748

           Summary: need syscall-number database in tapset
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
        AssignedTo: systemtap@sourceware.org
        ReportedBy: fche@redhat.com


For use by process().syscall and kernel.trace("sys_{enter,exit}"),
scripts need to know the syscall numbering conventions for the
current process.  A tapset should give it to them, perhaps in
the form:

global __syscall_32_num2name[400]
global __syscall_32_name2num[400]
global __syscall_64_num2name[400]
global __syscall_64_name2num[400]

probe begin { 
  .... initialize based on %( arch ... %)
}

function syscall_num(name) {
  return (current_is32bit() ? __syscall_32[name] : __syscall_64[name])
}
function syscall_name(num) { 
  ....
}

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