On Mon, 2008-11-03 at 11:14 -0600, David Smith wrote: > Is this correct, or should the 1st syscall argument be found in > regs->orig_gpr2 by syscall_get_arguments()/syscall_set_arguments()? The question is when do syscall_get_arguments and syscall_set_arguments functions get called? If they are called on a call chain that started from do_syscall_trace_enter then we'd have to use orig_gpr2 instead of gprs[2] but if the functions are not called via do_syscall_trace_enter the first argument is located in grprs[2]. As far as I can see the sole user of syscall_get_arguments is collect_syscall which is used to get the registers of a blocked process. In this case the kernel call chain does not include do_syscall_trace_enter, therefore the first argument is in gprs[2], no? -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
