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Date: Tue, 30 Oct 2007 13:49:02 -0400 From: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> To: Rusty Russell <rusty@...tcorp.com.au> Cc: linux-kernel@...r.kernel.org, "systemtap@...rceware.org" <systemtap@...rceware.org> Subject: kallsyms __print_symbol prints first weak symbol encountered Hi, I am try to see how I can use kallsyms to get the mapping syscall id -> syscall name by listing all the symbols corresponding to the function pointers present in the sys_call_table. However, I just ran into what I consider an unusual behavior of kallsyms: when I list the sys_ni() (not implemented system calls), I get compat_sys_futex instead. If I look at System.map, it's explained by this: c0146630 W compat_sys_futex c0146630 W compat_sys_get_mempolicy c0146630 W compat_sys_get_robust_list c0146630 W compat_sys_ipc c0146630 W compat_sys_kexec_load c0146630 W compat_sys_keyctl ... c0146630 T sys_ni_syscall ... c0146630 W sys_timerfd kallsyms returns the first symbol encountered, even though it is weak, when it should in fact return sys_ni_syscall. Is it a concern for anyone else out there ? Would it make sense to fix it ? Mathieu -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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