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List: gdb-bugs
Subject: bug in gdb/target.c:target_signal_to_name
From: Petr Ledvina <ledvinap () kae ! zcu ! cz>
Date: 2001-11-30 17:37:19
Message-ID: Pine.OSF.4.33.0111301833160.4557-100000 () eryx1 ! zcu ! cz
[Download RAW message or body]
When remote target returns some invalid signal, gdb vill crash with
segfault. The problem seems to be in function target_signal_to_name,
which doesn't check, if signal is in bounds and returns invalid name.
This version will (at least) not segfault:
/* Return the name for a signal. */
char *
target_signal_to_name (sig)
enum target_signal sig;
{
if (sig == TARGET_SIGNAL_UNKNOWN)
/* I think the code which prints this will always print it along with
the string, so no need to be verbose. */
return "?";
if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
return signals[sig].name;
else
return signals[TARGET_SIGNAL_UNKNOWN].name;
}
Petr Ledvina
ledvinap@kae.zcu.cz
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