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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// ==++==
//
//
// ==--==
#include "strike.h"
#include "data.h"
#include "util.h"
#include "platformspecific.h"
typedef struct _PRIVATE_LDR_DATA_TABLE_ENTRY {
LIST_ENTRY InLoadOrderLinks;
LIST_ENTRY InMemoryOrderLinks;
LIST_ENTRY InInitializationOrderLinks;
PVOID DllBase;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
USHORT LoadCount;
USHORT TlsIndex;
union _LDR_DATA_TABLE_ENTRY_UNION1 { //DevDiv LKG RC Changes: Added union name to avoid warning C4408
LIST_ENTRY HashLinks;
struct _LDR_DATA_TABLE_ENTRY_STRUCT1 { //DevDiv LKG RC Changes: Added struct name to avoid warning C4201
PVOID SectionPointer;
ULONG CheckSum;
};
};
union _LDR_DATA_TABLE_ENTRY_UNION2 { //DevDiv LKG RC Changes: Added union name to avoid warning C4408
struct _LDR_DATA_TABLE_ENTRY_STRUCT2 { //DevDiv LKG RC Changes: Added struct name to avoid warning C4201
ULONG TimeDateStamp;
};
struct _LDR_DATA_TABLE_ENTRY_STRUCT3 { //DevDiv LKG RC Changes: Added struct name to avoid warning C4201
PVOID LoadedImports;
};
};
struct _ACTIVATION_CONTEXT * EntryPointActivationContext;
PVOID PatchInformation;
} PRIVATE_LDR_DATA_TABLE_ENTRY, *PRIVATE_PLDR_DATA_TABLE_ENTRY;
#ifndef FEATURE_PAL
static void DllsNameFromPeb(
ULONG_PTR addrContaining,
__out_ecount (MAX_LONGPATH) WCHAR *dllName
)
{
ULONG64 ProcessPeb;
g_ExtSystem->GetCurrentProcessPeb (&ProcessPeb);
ULONG64 pLdrEntry;
ULONG64 PebLdrAddress;
ULONG64 Next;
ULONG64 OrderModuleListStart;
//
// Capture PebLdrData
//
static ULONG Offset_Ldr = -1;
if (Offset_Ldr == -1)
{
ULONG TypeId;
ULONG64 NtDllBase;
if (SUCCEEDED(g_ExtSymbols->GetModuleByModuleName ("ntdll",0,NULL,
&NtDllBase))
&& SUCCEEDED(g_ExtSymbols->GetTypeId (NtDllBase, "PEB", &TypeId)))
{
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"Ldr", &Offset_Ldr)))
Offset_Ldr = -1;
}
}
// We can not get it from PDB. Use the fixed one.
if (Offset_Ldr == -1)
Offset_Ldr = offsetof (DT_PEB, Ldr);
DT_PEB peb = {0};
if (FAILED(g_ExtData->ReadVirtual(ProcessPeb+Offset_Ldr, &peb.Ldr,
sizeof(peb.Ldr), NULL)))
{
ExtOut ( " Unable to read PEB_LDR_DATA address at %p\n", SOS_PTR(ProcessPeb+Offset_Ldr));
return;
}
PebLdrAddress = (ULONG64)peb.Ldr;
//
// Walk through the loaded module table and display all ldr data
//
static ULONG Offset_ModuleList = -1;
if (Offset_ModuleList == -1)
{
ULONG TypeId;
ULONG64 NtDllBase;
if (SUCCEEDED(g_ExtSymbols->GetModuleByModuleName ("ntdll",0,NULL,
&NtDllBase))
&& SUCCEEDED(g_ExtSymbols->GetTypeId (NtDllBase, "PEB_LDR_DATA",
&TypeId)))
{
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"InMemoryOrderModuleList",
&Offset_ModuleList)))
Offset_ModuleList = -1;
}
}
// We can not get it from PDB. Use the fixed one.
if (Offset_ModuleList == -1)
Offset_ModuleList = offsetof (DT_PEB_LDR_DATA, InMemoryOrderModuleList);
OrderModuleListStart = PebLdrAddress + Offset_ModuleList;
DT_PEB_LDR_DATA Ldr = {0};
if (FAILED(g_ExtData->ReadVirtual(OrderModuleListStart,
&Ldr.InMemoryOrderModuleList,
sizeof(Ldr.InMemoryOrderModuleList),
NULL)))
{
ExtOut ( " Unable to read InMemoryOrderModuleList address at %p\n", SOS_PTR(OrderModuleListStart));
return;
}
Next = (ULONG64)Ldr.InMemoryOrderModuleList.Flink;
static ULONG Offset_OrderLinks = -1;
static ULONG Offset_FullDllName = -1;
static ULONG Offset_DllBase = -1;
static ULONG Offset_SizeOfImage = -1;
if (Offset_OrderLinks == -1)
{
ULONG TypeId;
ULONG64 NtDllBase;
if (SUCCEEDED(g_ExtSymbols->GetModuleByModuleName ("ntdll",0,NULL,
&NtDllBase))
&& SUCCEEDED(g_ExtSymbols->GetTypeId (NtDllBase, "LDR_DATA_TABLE_ENTRY",
&TypeId)))
{
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"InMemoryOrderLinks",
&Offset_OrderLinks)))
Offset_OrderLinks = -1;
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"FullDllName",
&Offset_FullDllName)))
Offset_FullDllName = -1;
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"DllBase",
&Offset_DllBase)))
Offset_DllBase = -1;
if (FAILED (g_ExtSymbols->GetFieldOffset(NtDllBase, TypeId,
"SizeOfImage",
&Offset_SizeOfImage)))
Offset_SizeOfImage = -1;
}
}
// We can not get it from PDB. Use the fixed one.
if (Offset_OrderLinks == -1 || Offset_OrderLinks == 0)
{
Offset_OrderLinks = offsetof (PRIVATE_LDR_DATA_TABLE_ENTRY,
InMemoryOrderLinks);
Offset_FullDllName = offsetof (PRIVATE_LDR_DATA_TABLE_ENTRY,
FullDllName);
Offset_DllBase = offsetof (PRIVATE_LDR_DATA_TABLE_ENTRY,
DllBase);
Offset_SizeOfImage = offsetof (PRIVATE_LDR_DATA_TABLE_ENTRY,
SizeOfImage);
}
_UNICODE_STRING FullDllName;
__try {
while (Next != OrderModuleListStart) {
if (IsInterrupt())
return;
pLdrEntry = Next - Offset_OrderLinks;
//
// Capture LdrEntry
//
if (FAILED(g_ExtData->ReadVirtual(pLdrEntry + Offset_FullDllName,
&FullDllName,
sizeof(FullDllName),
NULL)))
{
ExtOut ( " Unable to read FullDllName address at %p\n",
pLdrEntry + Offset_FullDllName);
return;
}
ZeroMemory( dllName, MAX_LONGPATH * sizeof (WCHAR) );
if (FAILED(g_ExtData->ReadVirtual((ULONG64)FullDllName.Buffer,
dllName,
MAX_LONGPATH < FullDllName.Length ? MAX_LONGPATH : FullDllName.Length,
NULL)))
{
#if 0
ExtOut ( " Unable to read FullDllName.Buffer address at %p\n",
SOS_PTR(FullDllName.Buffer));
#endif
ZeroMemory( dllName, MAX_LONGPATH * sizeof (WCHAR) );
}
//
// Dump the ldr entry data
// (dump all the entries if no containing address specified)
//
PRIVATE_LDR_DATA_TABLE_ENTRY LdrEntry = {0};
if (SUCCEEDED(g_ExtData->ReadVirtual(pLdrEntry + Offset_DllBase,
&LdrEntry.DllBase,
sizeof(LdrEntry.DllBase),
NULL))
&&
SUCCEEDED(g_ExtData->ReadVirtual(pLdrEntry + Offset_SizeOfImage,
&LdrEntry.SizeOfImage,
sizeof(LdrEntry.SizeOfImage),
NULL))
)
{
if (((ULONG_PTR)LdrEntry.DllBase <= addrContaining) &&
(addrContaining <= (ULONG_PTR)LdrEntry.DllBase + (ULONG_PTR)LdrEntry.SizeOfImage))
break;
}
ZeroMemory( dllName, MAX_LONGPATH * sizeof (WCHAR) );
if (FAILED(g_ExtData->ReadVirtual(pLdrEntry + Offset_OrderLinks,
&LdrEntry.InMemoryOrderLinks,
sizeof(LdrEntry.InMemoryOrderLinks),
NULL)))
break;
Next = (ULONG64)LdrEntry.InMemoryOrderLinks.Flink;
}
} __except (EXCEPTION_EXECUTE_HANDLER)
{
ExtOut ("exception during reading PEB\n");
return;
}
}
#endif
HRESULT
DllsName(
ULONG_PTR addrContaining,
__out_ecount (MAX_LONGPATH) WCHAR *dllName
)
{
dllName[0] = L'\0';
ULONG Index;
ULONG64 base;
HRESULT hr = g_ExtSymbols->GetModuleByOffset(addrContaining, 0, &Index, &base);
if (FAILED(hr))
return hr;
CHAR name[MAX_LONGPATH+1];
ULONG length;
hr = g_ExtSymbols->GetModuleNames(Index,base,name,MAX_LONGPATH,&length,NULL,0,NULL,NULL,0,NULL);
if (SUCCEEDED(hr))
{
MultiByteToWideChar (CP_ACP,0,name,-1,dllName,MAX_LONGPATH);
}
#ifndef FEATURE_PAL
if (_wcsrchr (dllName, '\\') == NULL) {
DllsNameFromPeb (addrContaining,dllName);
}
#endif
return hr;
}
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