Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Big-endian fixes: PDB creation by ilasm #59422

Merged
merged 1 commit into from
Sep 22, 2021
Merged

Big-endian fixes: PDB creation by ilasm #59422

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 10 additions & 8 deletions src/coreclr/ilasm/writer.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -212,26 +212,28 @@ HRESULT Assembler::CreateDebugDirectory()
param.debugDirData = NULL;

// get module ID
DWORD rsds = 0x53445352;
DWORD pdbAge = 0x1;
DWORD rsds = VAL32(0x53445352);
DWORD pdbAge = VAL32(0x1);
GUID pdbGuid = *m_pPortablePdbWriter->GetGuid();
SwapGuid(&pdbGuid);
DWORD len = sizeof(rsds) + sizeof(GUID) + sizeof(pdbAge) + (DWORD)strlen(m_szPdbFileName) + 1;
BYTE* dbgDirData = new BYTE[len];

DWORD offset = 0;
memcpy_s(dbgDirData + offset, len, &rsds, sizeof(rsds)); // RSDS
offset += sizeof(rsds);
memcpy_s(dbgDirData + offset, len, m_pPortablePdbWriter->GetGuid(), sizeof(GUID)); // PDB GUID
memcpy_s(dbgDirData + offset, len, &pdbGuid, sizeof(GUID)); // PDB GUID
offset += sizeof(GUID);
memcpy_s(dbgDirData + offset, len, &pdbAge, sizeof(pdbAge)); // PDB AGE
offset += sizeof(pdbAge);
memcpy_s(dbgDirData + offset, len, m_szPdbFileName, strlen(m_szPdbFileName) + 1); // PDB PATH

debugDirIDD.Characteristics = 0;
debugDirIDD.TimeDateStamp = m_pPortablePdbWriter->GetTimestamp();
debugDirIDD.MajorVersion = 0x100;
debugDirIDD.MinorVersion = 0x504d;
debugDirIDD.Type = IMAGE_DEBUG_TYPE_CODEVIEW;
debugDirIDD.SizeOfData = len;
debugDirIDD.TimeDateStamp = VAL32(m_pPortablePdbWriter->GetTimestamp());
debugDirIDD.MajorVersion = VAL16(0x100);
debugDirIDD.MinorVersion = VAL16(0x504d);
debugDirIDD.Type = VAL32(IMAGE_DEBUG_TYPE_CODEVIEW);
debugDirIDD.SizeOfData = VAL32(len);
debugDirIDD.AddressOfRawData = 0; // will be updated bellow
debugDirIDD.PointerToRawData = 0; // will be updated bellow

Expand Down
18 changes: 18 additions & 0 deletions src/coreclr/md/enc/pdbheap.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,16 @@ HRESULT PdbHeap::SetData(PORT_PDB_STREAM* data)
(sizeof(ULONG) * data->typeSystemTableRowsSize);
m_data = new BYTE[m_size];

#if BIGENDIAN
PORT_PDB_STREAM swappedData = *data;
SwapGuid(&swappedData.id.pdbGuid);
swappedData.id.pdbTimeStamp = VAL32(swappedData.id.pdbTimeStamp);
swappedData.entryPoint = VAL32(swappedData.entryPoint);
swappedData.referencedTypeSystemTables = VAL64(swappedData.referencedTypeSystemTables);
// typeSystemTableRows and typeSystemTableRowsSize handled below
data = &swappedData;
#endif

ULONG offset = 0;
if (memcpy_s(m_data + offset, m_size, &data->id, sizeof(data->id)))
return E_FAIL;
Expand All @@ -39,9 +49,17 @@ HRESULT PdbHeap::SetData(PORT_PDB_STREAM* data)
return E_FAIL;
offset += sizeof(data->referencedTypeSystemTables);

#if !BIGENDIAN
if (memcpy_s(m_data + offset, m_size, data->typeSystemTableRows, sizeof(ULONG) * data->typeSystemTableRowsSize))
return E_FAIL;
offset += sizeof(ULONG) * data->typeSystemTableRowsSize;
#else
for (int i = 0; i < data->typeSystemTableRowsSize; i++)
{
SET_UNALIGNED_VAL32(m_data + offset, data->typeSystemTableRows[i]);
offset += sizeof(ULONG);
}
#endif

_ASSERTE(offset == m_size);

Expand Down