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Add an explanatory message for when instruction decoding fails.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4817
This commit is contained in:
Nicholas Nethercote 2005-09-29 00:35:18 +00:00
parent 65e1e0b804
commit c8792e1e81
1 changed files with 9 additions and 0 deletions
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9
coregrind/m_scheduler/scheduler.c
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@ -780,6 +780,15 @@ VgSchedReturnCode VG_(scheduler) ( ThreadId tid )
}
case VEX_TRC_JMP_NODECODE:
#define M(a) VG_(message)(Vg_UserMsg, a);
M("Your program just tried to execute an instruction that Valgrind");
M("did not recognise. This might be because your program has a bug");
M("and erroneously jumped to a non-code location. If you are running");
M("Memcheck, you might have just seen a warning about a bad jump,");
M("which is a good indication that this is so. Or it might be" );
M("because the instruction is unimplemented in Valgrind; if you");
M("think this is the case, or you are not sure, please let us know.");
#undef M
VG_(synth_sigill)(tid, VG_(get_IP)(tid));
break;