6dadd508e7
might dump file paths that allows the dumping of full paths or just the basenames. Switched the stack frame dumping code to use just the basenames for the files instead of the full path. Modified the StackID class to no rely on needing the start PC for the current function/symbol since we can use the SymbolContextScope to uniquely identify that, unless there is no symbol context scope. In that case we can rely upon the current PC value. This saves the StackID from having to calculate the start PC when the StackFrame::GetStackID() accessor is called. Also improved the StackID less than operator to correctly handle inlined stack frames in the same stack. llvm-svn: 112867
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
//===-- StackID.cpp ---------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Target/StackID.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/Stream.h"
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#include "lldb/Symbol/Block.h"
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#include "lldb/Symbol/Symbol.h"
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#include "lldb/Symbol/SymbolContext.h"
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using namespace lldb_private;
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void
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StackID::Dump (Stream *s)
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{
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s->Printf("StackID (pc = 0x%16.16llx, cfa = 0x%16.16llx, symbol_scope = %p", (uint64_t)m_pc, (uint64_t)m_cfa, m_symbol_scope);
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if (m_symbol_scope)
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{
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SymbolContext sc;
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m_symbol_scope->CalculateSymbolContext (&sc);
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if (sc.block)
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s->Printf(" (Block {0x%8.8x})", sc.block->GetID());
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else if (sc.symbol)
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s->Printf(" (Symbol{0x%8.8x})", sc.symbol->GetID());
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}
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s->PutCString(") ");
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}
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bool
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lldb_private::operator== (const StackID& lhs, const StackID& rhs)
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{
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if (lhs.GetCallFrameAddress() != rhs.GetCallFrameAddress())
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return false;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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// Only compare the PC values if both symbol context scopes are NULL
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if (lhs_scope == NULL && rhs_scope == NULL)
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return lhs.GetPC() == rhs.GetPC();
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return lhs_scope == rhs_scope;
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}
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bool
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lldb_private::operator!= (const StackID& lhs, const StackID& rhs)
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{
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if (lhs.GetCallFrameAddress() != rhs.GetCallFrameAddress())
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return true;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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if (lhs_scope == NULL && rhs_scope == NULL)
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return lhs.GetPC() != rhs.GetPC();
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return lhs_scope != rhs_scope;
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}
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bool
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lldb_private::operator< (const StackID& lhs, const StackID& rhs)
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{
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const lldb::addr_t lhs_cfa = lhs.GetCallFrameAddress();
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const lldb::addr_t rhs_cfa = rhs.GetCallFrameAddress();
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if (lhs_cfa != rhs_cfa)
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return lhs_cfa < rhs_cfa;
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SymbolContextScope *lhs_scope = lhs.GetSymbolContextScope();
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SymbolContextScope *rhs_scope = rhs.GetSymbolContextScope();
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if (lhs_scope != NULL && rhs_scope != NULL)
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{
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// Same exact scope, lhs is not less than (younger than rhs)
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if (lhs_scope == rhs_scope)
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return false;
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SymbolContext lhs_sc;
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SymbolContext rhs_sc;
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lhs_scope->CalculateSymbolContext (&lhs_sc);
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rhs_scope->CalculateSymbolContext (&rhs_sc);
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// Items with the same function can only be compared
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if (lhs_sc.function == rhs_sc.function &&
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lhs_sc.function != NULL && lhs_sc.block != NULL &&
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rhs_sc.function != NULL && rhs_sc.block != NULL)
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{
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return rhs_sc.block->Contains (lhs_sc.block);
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}
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}
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return false;
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}
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