[Bug translator/5890] New: sys.stp andtestsuite/systemtap.syscall/sys.stp fail on 2.6.25 x86_64

["wcohen at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

The systemtap tests fail when using the syscall.compat_sys_recvmsg and
syscall.compat_sys_sendmsg probes because the $fd argument cannot be found.
This problem can be seen with the rawhide kernels, 2.6.25-0.90.rc3.git5.fc9 on
x86_64 machine.

$ ./stap  ../systemtap/testsuite/systemtap.syscall/sys.stp 
semantic error: not accessible at this address: identifier '$fd' at
/home/wcohen/systemtap_write/install/share/systemtap/tapset/syscalls2.stp:766:33
semantic error: not accessible at this address: identifier '$fd' at
/home/wcohen/systemtap_write/install/share/systemtap/tapset/syscalls2.stp:1451:33
Pass 2: analysis failed.  Try again with more '-v' (verbose) options.

The problem functions are small wrappers, but they appear to be real functions
in linux/net/compat.c:

asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
unsigned flags)
{
        return sys_sendmsg(fd, (struct msghdr __user *)msg, flags |
MSG_CMSG_COMPAT);
}

asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
unsigned int flags)
{
        return sys_recvmsg(fd, (struct msghdr __user *)msg, flags |
MSG_CMSG_COMPAT);
}



This might be due to the translator not finding the $fd or missing debugging
information. All the syscall tests fail on fedora 9 x86_64 machine.

-- 
           Summary: sys.stp andtestsuite/systemtap.syscall/sys.stp fail on
                    2.6.25 x86_64
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: wcohen at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5890

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