2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
137 lines
4.1 KiB
C++
137 lines
4.1 KiB
C++
//===-- SBInstructionList.cpp -----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/API/SBInstructionList.h"
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#include "lldb/API/SBInstruction.h"
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#include "lldb/API/SBAddress.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/Core/Disassembler.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb;
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using namespace lldb_private;
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SBInstructionList::SBInstructionList() : m_opaque_sp() {}
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SBInstructionList::SBInstructionList(const SBInstructionList &rhs)
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: m_opaque_sp(rhs.m_opaque_sp) {}
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const SBInstructionList &SBInstructionList::
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operator=(const SBInstructionList &rhs) {
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if (this != &rhs)
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m_opaque_sp = rhs.m_opaque_sp;
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return *this;
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}
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SBInstructionList::~SBInstructionList() {}
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bool SBInstructionList::IsValid() const { return m_opaque_sp.get() != NULL; }
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size_t SBInstructionList::GetSize() {
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if (m_opaque_sp)
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return m_opaque_sp->GetInstructionList().GetSize();
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return 0;
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}
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SBInstruction SBInstructionList::GetInstructionAtIndex(uint32_t idx) {
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SBInstruction inst;
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if (m_opaque_sp && idx < m_opaque_sp->GetInstructionList().GetSize())
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inst.SetOpaque(
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m_opaque_sp,
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m_opaque_sp->GetInstructionList().GetInstructionAtIndex(idx));
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return inst;
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}
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size_t SBInstructionList::GetInstructionsCount(const SBAddress &start,
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const SBAddress &end,
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bool canSetBreakpoint) {
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size_t num_instructions = GetSize();
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size_t i = 0;
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SBAddress addr;
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size_t lower_index = 0;
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size_t upper_index = 0;
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size_t instructions_to_skip = 0;
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for (i = 0; i < num_instructions; ++i) {
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addr = GetInstructionAtIndex(i).GetAddress();
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if (start == addr)
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lower_index = i;
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if (end == addr)
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upper_index = i;
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}
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if (canSetBreakpoint)
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for (i = lower_index; i <= upper_index; ++i) {
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SBInstruction insn = GetInstructionAtIndex(i);
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if (!insn.CanSetBreakpoint())
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++instructions_to_skip;
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}
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return upper_index - lower_index - instructions_to_skip;
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}
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void SBInstructionList::Clear() { m_opaque_sp.reset(); }
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void SBInstructionList::AppendInstruction(SBInstruction insn) {}
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void SBInstructionList::SetDisassembler(const lldb::DisassemblerSP &opaque_sp) {
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m_opaque_sp = opaque_sp;
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}
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void SBInstructionList::Print(FILE *out) {
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if (out == NULL)
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return;
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}
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bool SBInstructionList::GetDescription(lldb::SBStream &description) {
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if (m_opaque_sp) {
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size_t num_instructions = GetSize();
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if (num_instructions) {
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// Call the ref() to make sure a stream is created if one deesn't exist
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// already inside description...
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Stream &sref = description.ref();
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const uint32_t max_opcode_byte_size =
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m_opaque_sp->GetInstructionList().GetMaxOpcocdeByteSize();
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FormatEntity::Entry format;
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FormatEntity::Parse("${addr}: ", format);
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SymbolContext sc;
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SymbolContext prev_sc;
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for (size_t i = 0; i < num_instructions; ++i) {
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Instruction *inst =
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m_opaque_sp->GetInstructionList().GetInstructionAtIndex(i).get();
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if (inst == NULL)
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break;
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const Address &addr = inst->GetAddress();
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prev_sc = sc;
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ModuleSP module_sp(addr.GetModule());
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if (module_sp) {
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module_sp->ResolveSymbolContextForAddress(
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addr, eSymbolContextEverything, sc);
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}
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inst->Dump(&sref, max_opcode_byte_size, true, false, NULL, &sc,
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&prev_sc, &format, 0);
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sref.EOL();
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}
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return true;
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}
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}
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return false;
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}
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bool SBInstructionList::DumpEmulationForAllInstructions(const char *triple) {
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if (m_opaque_sp) {
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size_t len = GetSize();
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for (size_t i = 0; i < len; ++i) {
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if (!GetInstructionAtIndex((uint32_t)i).DumpEmulation(triple))
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return false;
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}
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}
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return true;
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}
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