1 //===- lib/MC/MCPseudoProbe.cpp - Pseudo probe encoding support ----------===//
55          "Last probe should not be null for non-sentinel probes");  in emit()
64   assert(Type <= 0xF && "Probe type too big to encode, exceeding 15");  in emit()
69          "Probe attributes too big to encode, exceeding 7");  in emit()
87     // Emit the GUID of the split function that the sentinel probe represents.  in emit()
96     dbgs() << "Probe: " << Index << "\n";  in emit()
101     const MCPseudoProbe &Probe, const MCPseudoProbeInlineStack &InlineStack) {  in addPseudoProbe()  argument
106   //    Probe: GUID of C, ...  in addPseudoProbe()
108   // which means, Function A inlines function B at call site with a probe id of  in addPseudoProbe()
109   // 88, and B inlines C at probe 66. The tri-tree expects a tree path like {[0,  in addPseudoProbe()
110   // A], [88, B], [66, C]} to locate the tree node where the probe should be  in addPseudoProbe()
115   // An empty inline stack means the function that the probe originates from  in addPseudoProbe()
119     Top = InlineSite(Probe.getGuid(), 0);  in addPseudoProbe()
127   // point to the node that the probe originates from.  in addPseudoProbe()
133       // Make an edge by using the previous probe id and current GUID.  in addPseudoProbe()
137     Cur = Cur->getOrAddNode(InlineSite(Probe.getGuid(), Index));  in addPseudoProbe()
140   Cur->Probes.push_back(Probe);  in addPseudoProbe()
159   // Emit number of probes in this node, including a sentinel probe for  in emit()
164            "Starting probe of a top-level function should be a sentinel probe");  in emit()
165     // The main body of a split function doesn't need a sentinel probe.  in emit()
173   // Emit sentinel probe for top-level functions  in emit()
178   for (const auto &Probe : Probes) {  in emit()  local
179     Probe.emit(MCOS, LastProbe);  in emit()
180     LastProbe = &Probe;  in emit()
192     // Emit probe index  in emit()
237         // Emit the group guarded by a sentinel probe.  in emit()
243         const MCPseudoProbe *Probe = &SentinelProbe;  in emit()  local
244         Inlinee.second->emit(MCOS, Probe);  in emit()
251 // This emits the pseudo probe tables.
265   // Put out the probe.  in emit()
273          "Probe function must exist for a valid GUID");  in getProbeFNameForGUID()
288   // Note that it won't include the probe's belonging function(leaf location)  in getInlineContext()
496         // For sentinel probe, the addr field actually stores the GUID of the  in buildAddress2ProbeMap()
501         // For now we assume all probe encoding should be either based on  in buildAddress2ProbeMap()
502         // leading probe address or function start address.  in buildAddress2ProbeMap()
549   OS << "Pseudo Probe Desc:\n";  in printGUID2FuncDescMap()
562     for (auto &Probe : It->second) {  in printProbeForAddress()  local
563       OS << " [Probe]:\t";  in printProbeForAddress()
564       Probe.print(OS, GUID2FuncDescMap, true);  in printProbeForAddress()
589   for (const auto &Probe : Probes) {  in getCallProbeForAddr()  local
590     if (Probe.isCall()) {  in getCallProbeForAddr()
591       // Disabling the assert and returning first call probe seen so far.  in getCallProbeForAddr()
601       //        "There should be only one call probe corresponding to address "  in getCallProbeForAddr()
603       CallProbe = &Probe;  in getCallProbeForAddr()
618     const MCDecodedPseudoProbe *Probe,  in getInlineContextForProbe()  argument
621   Probe->getInlineContext(InlineContextStack, GUID2FuncDescMap);  in getInlineContextForProbe()
624   // Note that the context from probe doesn't include leaf frame,  in getInlineContextForProbe()
626   const auto *FuncDesc = getFuncDescForGUID(Probe->getGuid());  in getInlineContextForProbe()
628       MCPseudoProbeFrameLocation(FuncDesc->FuncName, Probe->getIndex()));  in getInlineContextForProbe()
632     const MCDecodedPseudoProbe *Probe) const {  in getInlinerDescForProbe()
633   MCDecodedPseudoProbeInlineTree *InlinerNode = Probe->getInlineTreeNode();  in getInlinerDescForProbe()