diff options
Diffstat (limited to 'src/debug/shared/arm/primitives.cpp')
| -rw-r--r-- | src/debug/shared/arm/primitives.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/debug/shared/arm/primitives.cpp b/src/debug/shared/arm/primitives.cpp new file mode 100644 index 0000000000..e9d0bbd59b --- /dev/null +++ b/src/debug/shared/arm/primitives.cpp @@ -0,0 +1,93 @@ +// 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. +//***************************************************************************** +// File: primitives.cpp +// + +// +// Platform-specific debugger primitives +// +//***************************************************************************** + +#include "primitives.h" + + +// +// CopyThreadContext() does an intelligent copy from pSrc to pDst, +// respecting the ContextFlags of both contexts. +// +void CORDbgCopyThreadContext(DT_CONTEXT* pDst, const DT_CONTEXT* pSrc) +{ + DWORD dstFlags = pDst->ContextFlags; + DWORD srcFlags = pSrc->ContextFlags; + LOG((LF_CORDB, LL_INFO1000000, + "CP::CTC: pDst=0x%08x dstFlags=0x%x, pSrc=0x%08x srcFlags=0x%x\n", + pDst, dstFlags, pSrc, srcFlags)); + + if ((dstFlags & srcFlags & DT_CONTEXT_CONTROL) == DT_CONTEXT_CONTROL) + CopyContextChunk(&(pDst->Sp), &(pSrc->Sp), &(pDst->Fpscr), + DT_CONTEXT_CONTROL); + + if ((dstFlags & srcFlags & DT_CONTEXT_INTEGER) == DT_CONTEXT_INTEGER) + CopyContextChunk(&(pDst->R0), &(pSrc->R0), &(pDst->Sp), + DT_CONTEXT_INTEGER); + + if ((dstFlags & srcFlags & DT_CONTEXT_FLOATING_POINT) == DT_CONTEXT_FLOATING_POINT) + CopyContextChunk(&(pDst->Fpscr), &(pSrc->Fpscr), &(pDst->Bvr[0]), + DT_CONTEXT_FLOATING_POINT); + + if ((dstFlags & srcFlags & DT_CONTEXT_DEBUG_REGISTERS) == + DT_CONTEXT_DEBUG_REGISTERS) + CopyContextChunk(&(pDst->Bvr[0]), &(pSrc->Bvr[0]), &(pDst->Wcr[DT_ARM_MAX_WATCHPOINTS]), + DT_CONTEXT_DEBUG_REGISTERS); +} + + +// Update the regdisplay from a given context. +void CORDbgSetDebuggerREGDISPLAYFromContext(DebuggerREGDISPLAY *pDRD, + DT_CONTEXT* pContext) +{ + // We must pay attention to the context flags so that we only use valid portions + // of the context. + DWORD flags = pContext->ContextFlags; + if ((flags & DT_CONTEXT_CONTROL) == DT_CONTEXT_CONTROL) + { + pDRD->PC = (SIZE_T)CORDbgGetIP(pContext); + pDRD->SP = (SIZE_T)CORDbgGetSP(pContext); + pDRD->LR = (SIZE_T)pContext->Lr; + } + + if ((flags & DT_CONTEXT_INTEGER) == DT_CONTEXT_INTEGER) + { + pDRD->R0 = (SIZE_T)pContext->R0; + pDRD->R1 = (SIZE_T)pContext->R1; + pDRD->R2 = (SIZE_T)pContext->R2; + pDRD->R3 = (SIZE_T)pContext->R3; + pDRD->R4 = (SIZE_T)pContext->R4; + pDRD->R5 = (SIZE_T)pContext->R5; + pDRD->R6 = (SIZE_T)pContext->R6; + pDRD->R7 = (SIZE_T)pContext->R7; + pDRD->R8 = (SIZE_T)pContext->R8; + pDRD->R9 = (SIZE_T)pContext->R9; + pDRD->R10 = (SIZE_T)pContext->R10; + pDRD->R11 = (SIZE_T)pContext->R11; + pDRD->R12 = (SIZE_T)pContext->R12; + } +} + +#if defined(ALLOW_VMPTR_ACCESS) || !defined(RIGHT_SIDE_COMPILE) +void SetDebuggerREGDISPLAYFromREGDISPLAY(DebuggerREGDISPLAY* pDRD, REGDISPLAY* pRD) +{ + SUPPORTS_DAC_HOST_ONLY; + + CORDbgSetDebuggerREGDISPLAYFromContext(pDRD, reinterpret_cast<DT_CONTEXT*>(pRD->pCurrentContext)); + + pDRD->SP = pRD->SP; + pDRD->PC = (SIZE_T)*(pRD->pPC); + + LOG( (LF_CORDB, LL_INFO1000, "DT::TASSC:Registers:" + "SP = %x PC = %x", + pDRD->SP, pDRD->PC) ); +} +#endif // ALLOW_VMPTR_ACCESS || !RIGHT_SIDE_COMPILE |