mirror of
https://github.com/capstone-engine/llvm-capstone.git
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9b087d2ce6
Summary: This patch fixes the next situation. On Windows clang-cl makes no stub before the main function, so the main function is located exactly on module entry point. May be it is the same on other platforms. So consider the following sequence: - set a breakpoint on main and stop there; - try to evaluate expression, which requires a code execution on the debuggee side. Such an execution always returns to the module entry, and the plan waits for it there; - the plan understands that it is complete now and removes its breakpoint. But the breakpoint site is still there, because we also have a breakpoint on entry; - StopInfo analyzes a situation. It sees that we have stopped on the breakpoint site, and it sees that the breakpoint site has owners, and no one logical breakpoint is internal (because the plan is already completed and it have removed its breakpoint); - StopInfo thinks that it's a user breakpoint and skips it to avoid recursive computations; - the program continues. So in this situation the program continues without a stop right after the expression evaluation. To avoid this an additional check that the plan was completed was added. Reviewers: jingham, zturner, boris.ulasevich Reviewed by: jingham Tags: #lldb Differential Revision: https://reviews.llvm.org/D53761 llvm-svn: 347974
605 lines
18 KiB
C++
605 lines
18 KiB
C++
//===-- SBModule.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/API/SBModule.h"
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#include "lldb/API/SBAddress.h"
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#include "lldb/API/SBFileSpec.h"
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#include "lldb/API/SBModuleSpec.h"
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#include "lldb/API/SBProcess.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/API/SBSymbolContextList.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Core/ValueObjectList.h"
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#include "lldb/Core/ValueObjectVariable.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolFile.h"
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#include "lldb/Symbol/SymbolVendor.h"
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#include "lldb/Symbol/Symtab.h"
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#include "lldb/Symbol/TypeSystem.h"
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#include "lldb/Symbol/VariableList.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/StreamString.h"
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using namespace lldb;
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using namespace lldb_private;
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SBModule::SBModule() : m_opaque_sp() {}
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SBModule::SBModule(const lldb::ModuleSP &module_sp) : m_opaque_sp(module_sp) {}
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SBModule::SBModule(const SBModuleSpec &module_spec) : m_opaque_sp() {
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ModuleSP module_sp;
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Status error = ModuleList::GetSharedModule(*module_spec.m_opaque_ap,
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module_sp, NULL, NULL, NULL);
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if (module_sp)
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SetSP(module_sp);
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}
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SBModule::SBModule(const SBModule &rhs) : m_opaque_sp(rhs.m_opaque_sp) {}
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SBModule::SBModule(lldb::SBProcess &process, lldb::addr_t header_addr)
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: m_opaque_sp() {
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ProcessSP process_sp(process.GetSP());
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if (process_sp) {
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m_opaque_sp = process_sp->ReadModuleFromMemory(FileSpec(), header_addr);
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if (m_opaque_sp) {
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Target &target = process_sp->GetTarget();
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bool changed = false;
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m_opaque_sp->SetLoadAddress(target, 0, true, changed);
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target.GetImages().Append(m_opaque_sp);
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}
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}
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}
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const SBModule &SBModule::operator=(const SBModule &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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SBModule::~SBModule() {}
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bool SBModule::IsValid() const { return m_opaque_sp.get() != NULL; }
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void SBModule::Clear() { m_opaque_sp.reset(); }
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SBFileSpec SBModule::GetFileSpec() const {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
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SBFileSpec file_spec;
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ModuleSP module_sp(GetSP());
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if (module_sp)
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file_spec.SetFileSpec(module_sp->GetFileSpec());
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if (log)
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log->Printf("SBModule(%p)::GetFileSpec () => SBFileSpec(%p)",
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static_cast<void *>(module_sp.get()),
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static_cast<const void *>(file_spec.get()));
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return file_spec;
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}
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lldb::SBFileSpec SBModule::GetPlatformFileSpec() const {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
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SBFileSpec file_spec;
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ModuleSP module_sp(GetSP());
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if (module_sp)
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file_spec.SetFileSpec(module_sp->GetPlatformFileSpec());
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if (log)
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log->Printf("SBModule(%p)::GetPlatformFileSpec () => SBFileSpec(%p)",
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static_cast<void *>(module_sp.get()),
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static_cast<const void *>(file_spec.get()));
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return file_spec;
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}
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bool SBModule::SetPlatformFileSpec(const lldb::SBFileSpec &platform_file) {
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bool result = false;
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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module_sp->SetPlatformFileSpec(*platform_file);
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result = true;
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}
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if (log)
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log->Printf("SBModule(%p)::SetPlatformFileSpec (SBFileSpec(%p (%s)) => %i",
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static_cast<void *>(module_sp.get()),
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static_cast<const void *>(platform_file.get()),
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platform_file->GetPath().c_str(), result);
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return result;
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}
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lldb::SBFileSpec SBModule::GetRemoteInstallFileSpec() {
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SBFileSpec sb_file_spec;
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ModuleSP module_sp(GetSP());
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if (module_sp)
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sb_file_spec.SetFileSpec(module_sp->GetRemoteInstallFileSpec());
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return sb_file_spec;
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}
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bool SBModule::SetRemoteInstallFileSpec(lldb::SBFileSpec &file) {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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module_sp->SetRemoteInstallFileSpec(file.ref());
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return true;
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}
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return false;
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}
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const uint8_t *SBModule::GetUUIDBytes() const {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
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const uint8_t *uuid_bytes = NULL;
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ModuleSP module_sp(GetSP());
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if (module_sp)
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uuid_bytes = module_sp->GetUUID().GetBytes().data();
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if (log) {
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if (uuid_bytes) {
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StreamString s;
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module_sp->GetUUID().Dump(&s);
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log->Printf("SBModule(%p)::GetUUIDBytes () => %s",
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static_cast<void *>(module_sp.get()), s.GetData());
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} else
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log->Printf("SBModule(%p)::GetUUIDBytes () => NULL",
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static_cast<void *>(module_sp.get()));
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}
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return uuid_bytes;
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}
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const char *SBModule::GetUUIDString() const {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
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const char *uuid_cstr = NULL;
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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// We are going to return a "const char *" value through the public API, so
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// we need to constify it so it gets added permanently the string pool and
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// then we don't need to worry about the lifetime of the string as it will
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// never go away once it has been put into the ConstString string pool
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uuid_cstr = ConstString(module_sp->GetUUID().GetAsString()).GetCString();
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}
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if (uuid_cstr && uuid_cstr[0]) {
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if (log)
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log->Printf("SBModule(%p)::GetUUIDString () => %s",
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static_cast<void *>(module_sp.get()), uuid_cstr);
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return uuid_cstr;
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}
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if (log)
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log->Printf("SBModule(%p)::GetUUIDString () => NULL",
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static_cast<void *>(module_sp.get()));
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return NULL;
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}
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bool SBModule::operator==(const SBModule &rhs) const {
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if (m_opaque_sp)
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return m_opaque_sp.get() == rhs.m_opaque_sp.get();
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return false;
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}
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bool SBModule::operator!=(const SBModule &rhs) const {
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if (m_opaque_sp)
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return m_opaque_sp.get() != rhs.m_opaque_sp.get();
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return false;
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}
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ModuleSP SBModule::GetSP() const { return m_opaque_sp; }
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void SBModule::SetSP(const ModuleSP &module_sp) { m_opaque_sp = module_sp; }
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SBAddress SBModule::ResolveFileAddress(lldb::addr_t vm_addr) {
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lldb::SBAddress sb_addr;
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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Address addr;
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if (module_sp->ResolveFileAddress(vm_addr, addr))
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sb_addr.ref() = addr;
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}
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return sb_addr;
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}
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SBSymbolContext
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SBModule::ResolveSymbolContextForAddress(const SBAddress &addr,
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uint32_t resolve_scope) {
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SBSymbolContext sb_sc;
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ModuleSP module_sp(GetSP());
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SymbolContextItem scope = static_cast<SymbolContextItem>(resolve_scope);
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if (module_sp && addr.IsValid())
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module_sp->ResolveSymbolContextForAddress(addr.ref(), scope, *sb_sc);
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return sb_sc;
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}
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bool SBModule::GetDescription(SBStream &description) {
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Stream &strm = description.ref();
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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module_sp->GetDescription(&strm);
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} else
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strm.PutCString("No value");
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return true;
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}
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uint32_t SBModule::GetNumCompileUnits() {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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return module_sp->GetNumCompileUnits();
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}
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return 0;
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}
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SBCompileUnit SBModule::GetCompileUnitAtIndex(uint32_t index) {
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SBCompileUnit sb_cu;
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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CompUnitSP cu_sp = module_sp->GetCompileUnitAtIndex(index);
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sb_cu.reset(cu_sp.get());
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}
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return sb_cu;
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}
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SBSymbolContextList
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SBModule::FindCompileUnits(const SBFileSpec &sb_file_spec) {
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SBSymbolContextList sb_sc_list;
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const ModuleSP module_sp(GetSP());
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if (sb_file_spec.IsValid() && module_sp) {
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const bool append = true;
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module_sp->FindCompileUnits(*sb_file_spec, append, *sb_sc_list);
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}
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return sb_sc_list;
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}
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static Symtab *GetUnifiedSymbolTable(const lldb::ModuleSP &module_sp) {
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if (module_sp) {
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SymbolVendor *symbols = module_sp->GetSymbolVendor();
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if (symbols)
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return symbols->GetSymtab();
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}
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return NULL;
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}
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size_t SBModule::GetNumSymbols() {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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Symtab *symtab = GetUnifiedSymbolTable(module_sp);
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if (symtab)
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return symtab->GetNumSymbols();
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}
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return 0;
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}
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SBSymbol SBModule::GetSymbolAtIndex(size_t idx) {
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SBSymbol sb_symbol;
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ModuleSP module_sp(GetSP());
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Symtab *symtab = GetUnifiedSymbolTable(module_sp);
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if (symtab)
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sb_symbol.SetSymbol(symtab->SymbolAtIndex(idx));
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return sb_symbol;
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}
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lldb::SBSymbol SBModule::FindSymbol(const char *name,
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lldb::SymbolType symbol_type) {
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SBSymbol sb_symbol;
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if (name && name[0]) {
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ModuleSP module_sp(GetSP());
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Symtab *symtab = GetUnifiedSymbolTable(module_sp);
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if (symtab)
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sb_symbol.SetSymbol(symtab->FindFirstSymbolWithNameAndType(
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ConstString(name), symbol_type, Symtab::eDebugAny,
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Symtab::eVisibilityAny));
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}
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return sb_symbol;
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}
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lldb::SBSymbolContextList SBModule::FindSymbols(const char *name,
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lldb::SymbolType symbol_type) {
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SBSymbolContextList sb_sc_list;
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if (name && name[0]) {
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ModuleSP module_sp(GetSP());
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Symtab *symtab = GetUnifiedSymbolTable(module_sp);
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if (symtab) {
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std::vector<uint32_t> matching_symbol_indexes;
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const size_t num_matches = symtab->FindAllSymbolsWithNameAndType(
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ConstString(name), symbol_type, matching_symbol_indexes);
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if (num_matches) {
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SymbolContext sc;
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sc.module_sp = module_sp;
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SymbolContextList &sc_list = *sb_sc_list;
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for (size_t i = 0; i < num_matches; ++i) {
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sc.symbol = symtab->SymbolAtIndex(matching_symbol_indexes[i]);
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if (sc.symbol)
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sc_list.Append(sc);
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}
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}
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}
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}
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return sb_sc_list;
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}
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size_t SBModule::GetNumSections() {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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// Give the symbol vendor a chance to add to the unified section list.
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module_sp->GetSymbolVendor();
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SectionList *section_list = module_sp->GetSectionList();
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if (section_list)
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return section_list->GetSize();
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}
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return 0;
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}
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SBSection SBModule::GetSectionAtIndex(size_t idx) {
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SBSection sb_section;
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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// Give the symbol vendor a chance to add to the unified section list.
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module_sp->GetSymbolVendor();
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SectionList *section_list = module_sp->GetSectionList();
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if (section_list)
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sb_section.SetSP(section_list->GetSectionAtIndex(idx));
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}
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return sb_section;
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}
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lldb::SBSymbolContextList SBModule::FindFunctions(const char *name,
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uint32_t name_type_mask) {
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lldb::SBSymbolContextList sb_sc_list;
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ModuleSP module_sp(GetSP());
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if (name && module_sp) {
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const bool append = true;
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const bool symbols_ok = true;
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const bool inlines_ok = true;
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FunctionNameType type = static_cast<FunctionNameType>(name_type_mask);
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module_sp->FindFunctions(ConstString(name), NULL, type, symbols_ok,
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inlines_ok, append, *sb_sc_list);
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}
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return sb_sc_list;
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}
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SBValueList SBModule::FindGlobalVariables(SBTarget &target, const char *name,
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uint32_t max_matches) {
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SBValueList sb_value_list;
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ModuleSP module_sp(GetSP());
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if (name && module_sp) {
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VariableList variable_list;
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const uint32_t match_count = module_sp->FindGlobalVariables(
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ConstString(name), NULL, max_matches, variable_list);
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if (match_count > 0) {
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for (uint32_t i = 0; i < match_count; ++i) {
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lldb::ValueObjectSP valobj_sp;
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TargetSP target_sp(target.GetSP());
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valobj_sp = ValueObjectVariable::Create(
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target_sp.get(), variable_list.GetVariableAtIndex(i));
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if (valobj_sp)
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sb_value_list.Append(SBValue(valobj_sp));
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}
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}
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}
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return sb_value_list;
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}
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lldb::SBValue SBModule::FindFirstGlobalVariable(lldb::SBTarget &target,
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const char *name) {
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SBValueList sb_value_list(FindGlobalVariables(target, name, 1));
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if (sb_value_list.IsValid() && sb_value_list.GetSize() > 0)
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return sb_value_list.GetValueAtIndex(0);
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return SBValue();
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}
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lldb::SBType SBModule::FindFirstType(const char *name_cstr) {
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SBType sb_type;
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ModuleSP module_sp(GetSP());
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if (name_cstr && module_sp) {
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SymbolContext sc;
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const bool exact_match = false;
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ConstString name(name_cstr);
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sb_type = SBType(module_sp->FindFirstType(sc, name, exact_match));
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if (!sb_type.IsValid()) {
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TypeSystem *type_system =
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module_sp->GetTypeSystemForLanguage(eLanguageTypeC);
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if (type_system)
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sb_type = SBType(type_system->GetBuiltinTypeByName(name));
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}
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}
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return sb_type;
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}
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lldb::SBType SBModule::GetBasicType(lldb::BasicType type) {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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TypeSystem *type_system =
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module_sp->GetTypeSystemForLanguage(eLanguageTypeC);
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if (type_system)
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return SBType(type_system->GetBasicTypeFromAST(type));
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}
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return SBType();
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}
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lldb::SBTypeList SBModule::FindTypes(const char *type) {
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SBTypeList retval;
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ModuleSP module_sp(GetSP());
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if (type && module_sp) {
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SymbolContext sc;
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TypeList type_list;
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const bool exact_match = false;
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ConstString name(type);
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llvm::DenseSet<SymbolFile *> searched_symbol_files;
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const uint32_t num_matches = module_sp->FindTypes(
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sc, name, exact_match, UINT32_MAX, searched_symbol_files, type_list);
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if (num_matches > 0) {
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for (size_t idx = 0; idx < num_matches; idx++) {
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TypeSP type_sp(type_list.GetTypeAtIndex(idx));
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if (type_sp)
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retval.Append(SBType(type_sp));
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}
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} else {
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TypeSystem *type_system =
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module_sp->GetTypeSystemForLanguage(eLanguageTypeC);
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if (type_system) {
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CompilerType compiler_type = type_system->GetBuiltinTypeByName(name);
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if (compiler_type)
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retval.Append(SBType(compiler_type));
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}
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}
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}
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return retval;
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}
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lldb::SBType SBModule::GetTypeByID(lldb::user_id_t uid) {
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ModuleSP module_sp(GetSP());
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if (module_sp) {
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SymbolVendor *vendor = module_sp->GetSymbolVendor();
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if (vendor) {
|
|
Type *type_ptr = vendor->ResolveTypeUID(uid);
|
|
if (type_ptr)
|
|
return SBType(type_ptr->shared_from_this());
|
|
}
|
|
}
|
|
return SBType();
|
|
}
|
|
|
|
lldb::SBTypeList SBModule::GetTypes(uint32_t type_mask) {
|
|
SBTypeList sb_type_list;
|
|
|
|
ModuleSP module_sp(GetSP());
|
|
if (!module_sp)
|
|
return sb_type_list;
|
|
SymbolVendor *vendor = module_sp->GetSymbolVendor();
|
|
if (!vendor)
|
|
return sb_type_list;
|
|
|
|
TypeClass type_class = static_cast<TypeClass>(type_mask);
|
|
TypeList type_list;
|
|
vendor->GetTypes(NULL, type_class, type_list);
|
|
sb_type_list.m_opaque_ap->Append(type_list);
|
|
return sb_type_list;
|
|
}
|
|
|
|
SBSection SBModule::FindSection(const char *sect_name) {
|
|
SBSection sb_section;
|
|
|
|
ModuleSP module_sp(GetSP());
|
|
if (sect_name && module_sp) {
|
|
// Give the symbol vendor a chance to add to the unified section list.
|
|
module_sp->GetSymbolVendor();
|
|
SectionList *section_list = module_sp->GetSectionList();
|
|
if (section_list) {
|
|
ConstString const_sect_name(sect_name);
|
|
SectionSP section_sp(section_list->FindSectionByName(const_sect_name));
|
|
if (section_sp) {
|
|
sb_section.SetSP(section_sp);
|
|
}
|
|
}
|
|
}
|
|
return sb_section;
|
|
}
|
|
|
|
lldb::ByteOrder SBModule::GetByteOrder() {
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp)
|
|
return module_sp->GetArchitecture().GetByteOrder();
|
|
return eByteOrderInvalid;
|
|
}
|
|
|
|
const char *SBModule::GetTriple() {
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp) {
|
|
std::string triple(module_sp->GetArchitecture().GetTriple().str());
|
|
// Unique the string so we don't run into ownership issues since the const
|
|
// strings put the string into the string pool once and the strings never
|
|
// comes out
|
|
ConstString const_triple(triple.c_str());
|
|
return const_triple.GetCString();
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
uint32_t SBModule::GetAddressByteSize() {
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp)
|
|
return module_sp->GetArchitecture().GetAddressByteSize();
|
|
return sizeof(void *);
|
|
}
|
|
|
|
uint32_t SBModule::GetVersion(uint32_t *versions, uint32_t num_versions) {
|
|
llvm::VersionTuple version;
|
|
if (ModuleSP module_sp = GetSP())
|
|
version = module_sp->GetVersion();
|
|
uint32_t result = 0;
|
|
if (!version.empty())
|
|
++result;
|
|
if (version.getMinor())
|
|
++result;
|
|
if(version.getSubminor())
|
|
++result;
|
|
|
|
if (!versions)
|
|
return result;
|
|
|
|
if (num_versions > 0)
|
|
versions[0] = version.empty() ? UINT32_MAX : version.getMajor();
|
|
if (num_versions > 1)
|
|
versions[1] = version.getMinor().getValueOr(UINT32_MAX);
|
|
if (num_versions > 2)
|
|
versions[2] = version.getSubminor().getValueOr(UINT32_MAX);
|
|
for (uint32_t i = 3; i < num_versions; ++i)
|
|
versions[i] = UINT32_MAX;
|
|
return result;
|
|
}
|
|
|
|
lldb::SBFileSpec SBModule::GetSymbolFileSpec() const {
|
|
lldb::SBFileSpec sb_file_spec;
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp) {
|
|
SymbolVendor *symbol_vendor_ptr = module_sp->GetSymbolVendor();
|
|
if (symbol_vendor_ptr)
|
|
sb_file_spec.SetFileSpec(symbol_vendor_ptr->GetMainFileSpec());
|
|
}
|
|
return sb_file_spec;
|
|
}
|
|
|
|
lldb::SBAddress SBModule::GetObjectFileHeaderAddress() const {
|
|
lldb::SBAddress sb_addr;
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp) {
|
|
ObjectFile *objfile_ptr = module_sp->GetObjectFile();
|
|
if (objfile_ptr)
|
|
sb_addr.ref() = objfile_ptr->GetHeaderAddress();
|
|
}
|
|
return sb_addr;
|
|
}
|
|
|
|
lldb::SBAddress SBModule::GetObjectFileEntryPointAddress() const {
|
|
lldb::SBAddress sb_addr;
|
|
ModuleSP module_sp(GetSP());
|
|
if (module_sp) {
|
|
ObjectFile *objfile_ptr = module_sp->GetObjectFile();
|
|
if (objfile_ptr)
|
|
sb_addr.ref() = objfile_ptr->GetEntryPointAddress();
|
|
}
|
|
return sb_addr;
|
|
}
|