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Check that we can really read at the faulty eip in Windows prior to decoding

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the instruction. Also fix the unrecoverable fault dump to really be useful.
This commit is contained in:
gbeauche 2004-12-11 13:07:38 +00:00
parent 0c8d0cd8be
commit c10046c137
1 changed files with 8 additions and 5 deletions
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9
BasiliskII/src/Unix/sigsegv.cpp
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@ -754,6 +754,10 @@ static bool ix86_skip_instruction(unsigned long * regs)
if (eip == 0)
return false;
#ifdef _WIN32
if (IsBadCodePtr((FARPROC)eip))
return false;
#endif
transfer_type_t transfer_type = SIGSEGV_TRANSFER_UNKNOWN;
transfer_size_t transfer_size = SIZE_LONG;
@ -1514,12 +1518,11 @@ static bool handle_badaccess(SIGSEGV_FAULT_HANDLER_ARGLIST_1)
break;
#endif
case SIGSEGV_RETURN_FAILURE:
return false;
}
// We can't do anything with the fault_address, dump state?
if (sigsegv_state_dumper != 0)
sigsegv_state_dumper(fault_address, fault_instruction);
break;
}
return false;
}