Method FindSubProgram

IDEHelper/DebugTarget.cpp:792–901

}

DbgSubprogram* DebugTarget::FindSubProgram(addr_target pc, DbgOnDemandKind onDemandKind)
{
	BP_ZONE("WinDebugger::FindSubProgram");

	for (int pass = 0; pass < 2; pass++)
	{
		int mapBlockSize = 1 << DbgRadixMap<DbgSubprogramMapEntry*>::BLOCK_SHIFT;

		DbgSubprogram* foundSubprogram = NULL;

		// Even though the radix map is LIFO, we might find an inline parent in an earlier block
		// so we can't terminate the search until we exhaust the lookup
		addr_target bestStart = 0;
		for (int offset = 0; offset < DBG_MAX_LOOKBACK; offset += mapBlockSize)
		{
			DbgSubprogramMapEntry* subprogramMapEntry = mSubprogramMap.FindFirstLeafAt(pc - offset);
			while (subprogramMapEntry != NULL)
			{
				auto dwSubprogram = subprogramMapEntry->mEntry;
				if ((pc >= dwSubprogram->mBlock.mLowPC) && (pc < dwSubprogram->mBlock.mHighPC) && (dwSubprogram->mBlock.mLowPC > bestStart))
				{
					if ((dwSubprogram->mLineInfo != NULL) && (dwSubprogram->mLineInfo->mHasInlinees))
					{
						if (dwSubprogram->mNeedLineDataFixup)
							mDebugger->FixupLineDataForSubprogram(dwSubprogram);

						DbgSubprogram* inlinedSubprogram = NULL;
						if (dwSubprogram->FindClosestLine(pc, &inlinedSubprogram) != NULL)
						{
							return inlinedSubprogram;
						}
					}

					/*bool inGap = false;
					if (dwSubprogram->mHasLineGaps)
					{
						mDebugger->FixupLineDataForSubprogram(dwSubprogram);
						auto lineData = dwSubprogram->FindClosestLine(pc, 0, true);
						inGap == (lineData == NULL) || (lineData->mLine == -1);
					}

					if (!inGap)
					{
						foundSubprogram = dwSubprogram;
						bestStart = dwSubprogram->mBlock.mLowPC;
					}
					else
					{
					}*/

					return dwSubprogram;
					//foundSubprogram = dwSubprogram;
					//bestStart = dwSubprogram->mBlock.mLowPC;
				}
				subprogramMapEntry = subprogramMapEntry->mNext;
			}
		}
		if (foundSubprogram != NULL)