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guard dumping the stack trace to prevent infinite exception loops

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svn path=/trunk/; revision=15001
This commit is contained in:
Thomas Bluemel
2005-05-05 15:38:32 +00:00
parent e5443b9351
commit 0f4b0fd412
1 changed files with 22 additions and 14 deletions
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reactos/lib/kernel32/except/except.c
+22 -14
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@@ -171,23 +171,31 @@ UnhandledExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo)
_dump_context ( ExceptionInfo->ContextRecord );
#ifdef _X86_
DbgPrint("Frames:\n");
Frame = (PULONG)ExceptionInfo->ContextRecord->Ebp;
while (Frame[1] != 0 && Frame[1] != 0xdeadbeef)
_SEH_TRY
{
if (IsBadReadPtr((PVOID)Frame[1], 4)) {
DbgPrint(" %8x%9s %s\n", Frame[1], "<invalid address>"," ");
} else {
_module_name_from_addr((const void*)Frame[1], &StartAddr,
szMod, sizeof(szMod));
DbgPrint(" %8x+%-8x %s\n",
(PVOID)StartAddr,
(ULONG_PTR)Frame[1] - (ULONG_PTR)StartAddr, szMod);
Frame = (PULONG)ExceptionInfo->ContextRecord->Ebp;
while (Frame[1] != 0 && Frame[1] != 0xdeadbeef)
{
if (IsBadReadPtr((PVOID)Frame[1], 4)) {
DbgPrint(" %8x%9s %s\n", Frame[1], "<invalid address>"," ");
} else {
_module_name_from_addr((const void*)Frame[1], &StartAddr,
szMod, sizeof(szMod));
DbgPrint(" %8x+%-8x %s\n",
(PVOID)StartAddr,
(ULONG_PTR)Frame[1] - (ULONG_PTR)StartAddr, szMod);
}
if (IsBadReadPtr((PVOID)Frame[0], sizeof(*Frame) * 2)) {
break;
}
Frame = (PULONG)Frame[0];
}
if (IsBadReadPtr((PVOID)Frame[0], sizeof(*Frame) * 2)) {
break;
}
Frame = (PULONG)Frame[0];
}
_SEH_HANDLE
{
DbgPrint("<error dumping stack trace: 0x%x>\n", _SEH_GetExceptionCode());
}
_SEH_END;
#endif
}