diff options
Diffstat (limited to 'source/Plugins/ExpressionParser/Clang/IRForTarget.cpp')
| -rw-r--r-- | source/Plugins/ExpressionParser/Clang/IRForTarget.cpp | 711 |
1 files changed, 54 insertions, 657 deletions
diff --git a/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp b/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp index 509c594280a0..12ba7e3c2ac0 100644 --- a/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp +++ b/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp @@ -25,16 +25,17 @@ #include "clang/AST/ASTContext.h" -#include "lldb/Core/dwarf.h" #include "lldb/Core/ConstString.h" #include "lldb/Core/DataBufferHeap.h" #include "lldb/Core/Log.h" #include "lldb/Core/Scalar.h" #include "lldb/Core/StreamString.h" +#include "lldb/Core/dwarf.h" #include "lldb/Expression/IRExecutionUnit.h" #include "lldb/Expression/IRInterpreter.h" #include "lldb/Host/Endian.h" #include "lldb/Symbol/ClangASTContext.h" +#include "lldb/Symbol/ClangUtil.h" #include "lldb/Symbol/CompilerType.h" #include <map> @@ -43,13 +44,6 @@ using namespace llvm; static char ID; -IRForTarget::StaticDataAllocator::StaticDataAllocator(lldb_private::IRExecutionUnit &execution_unit) : - m_execution_unit(execution_unit), - m_stream_string(lldb_private::Stream::eBinary, execution_unit.GetAddressByteSize(), execution_unit.GetByteOrder()), - m_allocation(LLDB_INVALID_ADDRESS) -{ -} - IRForTarget::FunctionValueCache::FunctionValueCache(Maker const &maker) : m_maker(maker), m_values() @@ -72,28 +66,6 @@ IRForTarget::FunctionValueCache::GetValue(llvm::Function *function) return m_values[function]; } -lldb::addr_t -IRForTarget::StaticDataAllocator::Allocate() -{ - lldb_private::Error err; - - if (m_allocation != LLDB_INVALID_ADDRESS) - { - m_execution_unit.FreeNow(m_allocation); - m_allocation = LLDB_INVALID_ADDRESS; - } - - m_allocation = m_execution_unit.WriteNow((const uint8_t*)m_stream_string.GetData(), m_stream_string.GetSize(), err); - - return m_allocation; -} - -lldb::TargetSP -IRForTarget::StaticDataAllocator::GetTarget() -{ - return m_execution_unit.GetTarget(); -} - static llvm::Value * FindEntryInstruction (llvm::Function *function) { @@ -113,11 +85,11 @@ IRForTarget::IRForTarget (lldb_private::ClangExpressionDeclMap *decl_map, m_func_name(func_name), m_module(NULL), m_decl_map(decl_map), - m_data_allocator(execution_unit), m_CFStringCreateWithBytes(NULL), m_sel_registerName(NULL), m_intptr_ty(NULL), m_error_stream(error_stream), + m_execution_unit(execution_unit), m_result_store(NULL), m_result_is_pointer(false), m_reloc_placeholder(NULL), @@ -163,213 +135,9 @@ IRForTarget::FixFunctionLinkage(llvm::Function &llvm_function) { llvm_function.setLinkage(GlobalValue::ExternalLinkage); - std::string name = llvm_function.getName().str(); - - return true; -} - -IRForTarget::LookupResult -IRForTarget::GetFunctionAddress (llvm::Function *fun, - uint64_t &fun_addr, - lldb_private::ConstString &name, - Constant **&value_ptr) -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - - fun_addr = LLDB_INVALID_ADDRESS; - name.Clear(); - value_ptr = NULL; - - if (fun->isIntrinsic()) - { - Intrinsic::ID intrinsic_id = (Intrinsic::ID)fun->getIntrinsicID(); - - switch (intrinsic_id) - { - default: - if (log) - log->Printf("Unresolved intrinsic \"%s\"", Intrinsic::getName(intrinsic_id).c_str()); - - if (m_error_stream) - m_error_stream->Printf("Internal error [IRForTarget]: Call to unhandled compiler intrinsic '%s'\n", Intrinsic::getName(intrinsic_id).c_str()); - - return LookupResult::Fail; - case Intrinsic::memcpy: - { - static lldb_private::ConstString g_memcpy_str ("memcpy"); - name = g_memcpy_str; - } - break; - case Intrinsic::memset: - { - static lldb_private::ConstString g_memset_str ("memset"); - name = g_memset_str; - } - break; - case Intrinsic::dbg_declare: - case Intrinsic::dbg_value: - return LookupResult::Ignore; - } - - if (log && name) - log->Printf("Resolved intrinsic name \"%s\"", name.GetCString()); - } - else - { - name.SetCStringWithLength (fun->getName().data(), fun->getName().size()); - } - - // Find the address of the function. - - clang::NamedDecl *fun_decl = DeclForGlobal (fun); - - if (fun_decl) - { - if (!m_decl_map->GetFunctionInfo (fun_decl, fun_addr)) - { - std::vector<lldb_private::ConstString> alternates; - bool found_it = m_decl_map->GetFunctionAddress (name, fun_addr); - - if (!found_it) - { - lldb_private::Mangled mangled_name(name); - if (m_error_stream) - { - if (mangled_name.GetMangledName()) - m_error_stream->Printf("error: call to a function '%s' ('%s') that is not present in the target\n", - mangled_name.GetName(lldb::eLanguageTypeObjC_plus_plus).GetCString(), - mangled_name.GetMangledName().GetCString()); - else - m_error_stream->Printf("error: call to a function '%s' that is not present in the target\n", - mangled_name.GetName(lldb::eLanguageTypeObjC_plus_plus).GetCString()); - } - return LookupResult::Fail; - } - } - } - else - { - if (!m_decl_map->GetFunctionAddress (name, fun_addr)) - { - if (log) - log->Printf ("Metadataless function \"%s\" had no address", name.GetCString()); - - if (m_error_stream) - m_error_stream->Printf("Error [IRForTarget]: Call to a symbol-only function '%s' that is not present in the target\n", name.GetCString()); - - return LookupResult::Fail; - } - } - - if (log) - log->Printf("Found \"%s\" at 0x%" PRIx64, name.GetCString(), fun_addr); - - return LookupResult::Success; -} - -llvm::Constant * -IRForTarget::BuildFunctionPointer (llvm::Type *type, - uint64_t ptr) -{ - PointerType *fun_ptr_ty = PointerType::getUnqual(type); - Constant *fun_addr_int = ConstantInt::get(m_intptr_ty, ptr, false); - return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty); -} - -void -IRForTarget::RegisterFunctionMetadata(LLVMContext &context, - llvm::Value *function_ptr, - const char *name) -{ - for (llvm::User *user : function_ptr->users()) - { - if (Instruction *user_inst = dyn_cast<Instruction>(user)) - { - MDString* md_name = MDString::get(context, StringRef(name)); - - MDNode *metadata = MDNode::get(context, md_name); - - user_inst->setMetadata("lldb.call.realName", metadata); - } - else - { - RegisterFunctionMetadata (context, user, name); - } - } -} - -bool -IRForTarget::ResolveFunctionPointers(llvm::Module &llvm_module) -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - - for (llvm::Module::iterator fi = llvm_module.begin(); - fi != llvm_module.end(); - ++fi) - { - Function *fun = &*fi; - - bool is_decl = fun->isDeclaration(); - - if (log) - log->Printf("Examining %s function %s", (is_decl ? "declaration" : "non-declaration"), fun->getName().str().c_str()); - - if (!is_decl) - continue; - - if (fun->use_empty()) - continue; // ignore - - uint64_t addr = LLDB_INVALID_ADDRESS; - lldb_private::ConstString name; - Constant **value_ptr = NULL; - - LookupResult result = GetFunctionAddress(fun, - addr, - name, - value_ptr); - - switch (result) - { - case LookupResult::Fail: - return false; // GetFunctionAddress reports its own errors - - case LookupResult::Ignore: - break; // Nothing to do - - case LookupResult::Success: - { - Constant *value = BuildFunctionPointer(fun->getFunctionType(), addr); - - RegisterFunctionMetadata (llvm_module.getContext(), fun, name.AsCString()); - - if (value_ptr) - *value_ptr = value; - - // If we are replacing a function with the nobuiltin attribute, it may - // be called with the builtin attribute on call sites. Remove any such - // attributes since it's illegal to have a builtin call to something - // other than a nobuiltin function. - if (fun->hasFnAttribute(llvm::Attribute::NoBuiltin)) { - llvm::Attribute builtin = llvm::Attribute::get(fun->getContext(), llvm::Attribute::Builtin); - - for (auto u : fun->users()) { - if (auto call = dyn_cast<CallInst>(u)) { - call->removeAttribute(AttributeSet::FunctionIndex, builtin); - } - } - } - - fun->replaceAllUsesWith(value); - } - break; - } - } - return true; } - clang::NamedDecl * IRForTarget::DeclForGlobal (const GlobalValue *global_val, Module *module) { @@ -572,7 +340,7 @@ IRForTarget::CreateResultVariable (llvm::Function &llvm_function) } - lldb::TargetSP target_sp (m_data_allocator.GetTarget()); + lldb::TargetSP target_sp (m_execution_unit.GetTarget()); lldb_private::ExecutionContext exe_ctx (target_sp, true); if (m_result_type.GetBitSize(exe_ctx.GetBestExecutionContextScope()) == 0) { @@ -704,7 +472,8 @@ IRForTarget::RewriteObjCConstString (llvm::GlobalVariable *ns_str, static lldb_private::ConstString g_CFStringCreateWithBytes_str ("CFStringCreateWithBytes"); - if (!m_decl_map->GetFunctionAddress (g_CFStringCreateWithBytes_str, CFStringCreateWithBytes_addr)) + CFStringCreateWithBytes_addr = m_execution_unit.FindSymbol (g_CFStringCreateWithBytes_str); + if (CFStringCreateWithBytes_addr == LLDB_INVALID_ADDRESS) { if (log) log->PutCString("Couldn't find CFStringCreateWithBytes in the target"); @@ -1093,7 +862,8 @@ IRForTarget::RewriteObjCSelector (Instruction* selector_load) lldb::addr_t sel_registerName_addr; static lldb_private::ConstString g_sel_registerName_str ("sel_registerName"); - if (!m_decl_map->GetFunctionAddress (g_sel_registerName_str, sel_registerName_addr)) + sel_registerName_addr = m_execution_unit.FindSymbol (g_sel_registerName_str); + if (sel_registerName_addr == LLDB_INVALID_ADDRESS) return false; if (log) @@ -1335,7 +1105,13 @@ IRForTarget::MaterializeInitializer (uint8_t *data, Constant *initializer) if (ConstantInt *int_initializer = dyn_cast<ConstantInt>(initializer)) { - memcpy (data, int_initializer->getValue().getRawData(), m_target_data->getTypeStoreSize(initializer_type)); + size_t constant_size = m_target_data->getTypeStoreSize(initializer_type); + lldb_private::Scalar scalar = int_initializer->getValue().zextOrTrunc(llvm::NextPowerOf2(constant_size) * 8); + + lldb_private::Error get_data_error; + if (!scalar.GetAsMemoryData(data, constant_size, lldb_private::endian::InlHostByteOrder(), get_data_error)) + return false; + return true; } else if (ConstantDataArray *array_initializer = dyn_cast<ConstantDataArray>(initializer)) @@ -1388,48 +1164,6 @@ IRForTarget::MaterializeInitializer (uint8_t *data, Constant *initializer) return false; } -bool -IRForTarget::MaterializeInternalVariable (GlobalVariable *global_variable) -{ - if (GlobalVariable::isExternalLinkage(global_variable->getLinkage())) - return false; - - if (global_variable == m_reloc_placeholder) - return true; - - uint64_t offset = m_data_allocator.GetStream().GetSize(); - - llvm::Type *variable_type = global_variable->getType(); - - Constant *initializer = global_variable->getInitializer(); - - llvm::Type *initializer_type = initializer->getType(); - - size_t size = m_target_data->getTypeAllocSize(initializer_type); - size_t align = m_target_data->getPrefTypeAlignment(initializer_type); - - const size_t mask = (align - 1); - uint64_t aligned_offset = (offset + mask) & ~mask; - m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0); - offset = aligned_offset; - - lldb_private::DataBufferHeap data(size, '\0'); - - if (initializer) - if (!MaterializeInitializer(data.GetBytes(), initializer)) - return false; - - m_data_allocator.GetStream().Write(data.GetBytes(), data.GetByteSize()); - - Constant *new_pointer = BuildRelocation(variable_type, offset); - - global_variable->replaceAllUsesWith(new_pointer); - - global_variable->eraseFromParent(); - - return true; -} - // This function does not report errors; its callers are responsible. bool IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr) @@ -1455,7 +1189,7 @@ IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr) else if (GlobalVariable *global_variable = dyn_cast<GlobalVariable>(llvm_value_ptr)) { if (!GlobalValue::isExternalLinkage(global_variable->getLinkage())) - return MaterializeInternalVariable(global_variable); + return true; clang::NamedDecl *named_decl = DeclForGlobal(global_variable); @@ -1508,11 +1242,8 @@ IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr) if (log) { log->Printf("Type of \"%s\" is [clang \"%s\", llvm \"%s\"] [size %" PRIu64 ", align %" PRIu64 "]", - name.c_str(), - lldb_private::ClangASTContext::GetQualType(compiler_type).getAsString().c_str(), - PrintType(value_type).c_str(), - value_size, - value_alignment); + name.c_str(), lldb_private::ClangUtil::GetQualType(compiler_type).getAsString().c_str(), + PrintType(value_type).c_str(), value_size, value_alignment); } @@ -1524,10 +1255,8 @@ IRForTarget::MaybeHandleVariable (Value *llvm_value_ptr) { if (!global_variable->hasExternalLinkage()) return true; - else if (HandleSymbol (global_variable)) - return true; else - return false; + return true; } } else if (dyn_cast<llvm::Function>(llvm_value_ptr)) @@ -1783,231 +1512,6 @@ IRForTarget::ResolveExternals (Function &llvm_function) return true; } -bool -IRForTarget::ReplaceStrings () -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - - typedef std::map <GlobalVariable *, size_t> OffsetsTy; - - OffsetsTy offsets; - - for (GlobalVariable &gv : m_module->globals()) - { - if (!gv.hasInitializer()) - continue; - - Constant *gc = gv.getInitializer(); - - std::string str; - - if (gc->isNullValue()) - { - Type *gc_type = gc->getType(); - - ArrayType *gc_array_type = dyn_cast<ArrayType>(gc_type); - - if (!gc_array_type) - continue; - - Type *gc_element_type = gc_array_type->getElementType(); - - IntegerType *gc_integer_type = dyn_cast<IntegerType>(gc_element_type); - - if (gc_integer_type->getBitWidth() != 8) - continue; - - str = ""; - } - else - { - ConstantDataArray *gc_array = dyn_cast<ConstantDataArray>(gc); - - if (!gc_array) - continue; - - if (!gc_array->isCString()) - continue; - - if (log) - log->Printf("Found a GlobalVariable with string initializer %s", PrintValue(gc).c_str()); - - str = gc_array->getAsString(); - } - - offsets[&gv] = m_data_allocator.GetStream().GetSize(); - - m_data_allocator.GetStream().Write(str.c_str(), str.length() + 1); - } - - Type *char_ptr_ty = Type::getInt8PtrTy(m_module->getContext()); - - for (OffsetsTy::iterator oi = offsets.begin(), oe = offsets.end(); - oi != oe; - ++oi) - { - GlobalVariable *gv = oi->first; - size_t offset = oi->second; - - Constant *new_initializer = BuildRelocation(char_ptr_ty, offset); - - if (log) - log->Printf("Replacing GV %s with %s", PrintValue(gv).c_str(), PrintValue(new_initializer).c_str()); - - for (llvm::User *u : gv->users()) - { - if (log) - log->Printf("Found use %s", PrintValue(u).c_str()); - - ConstantExpr *const_expr = dyn_cast<ConstantExpr>(u); - StoreInst *store_inst = dyn_cast<StoreInst>(u); - - if (const_expr) - { - if (const_expr->getOpcode() != Instruction::GetElementPtr) - { - if (log) - log->Printf("Use (%s) of string variable is not a GetElementPtr constant", PrintValue(const_expr).c_str()); - - return false; - } - - Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, const_expr->getOperand(0)->getType()); - Constant *new_gep = const_expr->getWithOperandReplaced(0, bit_cast); - - const_expr->replaceAllUsesWith(new_gep); - } - else if (store_inst) - { - Constant *bit_cast = ConstantExpr::getBitCast(new_initializer, store_inst->getValueOperand()->getType()); - - store_inst->setOperand(0, bit_cast); - } - else - { - if (log) - log->Printf("Use (%s) of string variable is neither a constant nor a store", PrintValue(const_expr).c_str()); - - return false; - } - } - - gv->eraseFromParent(); - } - - return true; -} - -bool -IRForTarget::ReplaceStaticLiterals (llvm::BasicBlock &basic_block) -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - - typedef SmallVector <Value*, 2> ConstantList; - typedef SmallVector <llvm::Instruction*, 2> UserList; - typedef ConstantList::iterator ConstantIterator; - typedef UserList::iterator UserIterator; - - ConstantList static_constants; - UserList static_users; - - for (BasicBlock::iterator ii = basic_block.begin(), ie = basic_block.end(); - ii != ie; - ++ii) - { - llvm::Instruction &inst = *ii; - - for (Value *operand_val : inst.operand_values()) - { - ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val); - - if (operand_constant_fp/* && operand_constant_fp->getType()->isX86_FP80Ty()*/) - { - static_constants.push_back(operand_val); - static_users.push_back(&*ii); - } - } - } - - ConstantIterator constant_iter; - UserIterator user_iter; - - for (constant_iter = static_constants.begin(), user_iter = static_users.begin(); - constant_iter != static_constants.end(); - ++constant_iter, ++user_iter) - { - Value *operand_val = *constant_iter; - llvm::Instruction *inst = *user_iter; - - ConstantFP *operand_constant_fp = dyn_cast<ConstantFP>(operand_val); - - if (operand_constant_fp) - { - Type *operand_type = operand_constant_fp->getType(); - - APFloat operand_apfloat = operand_constant_fp->getValueAPF(); - APInt operand_apint = operand_apfloat.bitcastToAPInt(); - - const uint8_t* operand_raw_data = (const uint8_t*)operand_apint.getRawData(); - size_t operand_data_size = operand_apint.getBitWidth() / 8; - - if (log) - { - std::string s; - raw_string_ostream ss(s); - for (size_t index = 0; - index < operand_data_size; - ++index) - { - ss << (uint32_t)operand_raw_data[index]; - ss << " "; - } - ss.flush(); - - log->Printf("Found ConstantFP with size %" PRIu64 " and raw data %s", (uint64_t)operand_data_size, s.c_str()); - } - - lldb_private::DataBufferHeap data(operand_data_size, 0); - - if (lldb_private::endian::InlHostByteOrder() != m_data_allocator.GetStream().GetByteOrder()) - { - uint8_t *data_bytes = data.GetBytes(); - - for (size_t index = 0; - index < operand_data_size; - ++index) - { - data_bytes[index] = operand_raw_data[operand_data_size - (1 + index)]; - } - } - else - { - memcpy(data.GetBytes(), operand_raw_data, operand_data_size); - } - - uint64_t offset = m_data_allocator.GetStream().GetSize(); - - size_t align = m_target_data->getPrefTypeAlignment(operand_type); - - const size_t mask = (align - 1); - uint64_t aligned_offset = (offset + mask) & ~mask; - m_data_allocator.GetStream().PutNHex8(aligned_offset - offset, 0); - - m_data_allocator.GetStream().Write(data.GetBytes(), operand_data_size); - - llvm::Type *fp_ptr_ty = operand_constant_fp->getType()->getPointerTo(); - - Constant *new_pointer = BuildRelocation(fp_ptr_ty, aligned_offset); - - llvm::LoadInst *fp_load = new llvm::LoadInst(new_pointer, "fp_load", inst); - - operand_constant_fp->replaceAllUsesWith(fp_load); - } - } - - return true; -} - static bool isGuardVariableRef(Value *V) { Constant *Old = NULL; @@ -2437,79 +1941,6 @@ IRForTarget::BuildRelocation(llvm::Type *type, uint64_t offset) } bool -IRForTarget::CompleteDataAllocation () -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - - if (!m_data_allocator.GetStream().GetSize()) - return true; - - lldb::addr_t allocation = m_data_allocator.Allocate(); - - if (log) - { - if (allocation) - log->Printf("Allocated static data at 0x%llx", (unsigned long long)allocation); - else - log->Printf("Failed to allocate static data"); - } - - if (!allocation || allocation == LLDB_INVALID_ADDRESS) - return false; - - Constant *relocated_addr = ConstantInt::get(m_intptr_ty, (uint64_t)allocation); - Constant *relocated_bitcast = ConstantExpr::getIntToPtr(relocated_addr, llvm::Type::getInt8PtrTy(m_module->getContext())); - - m_reloc_placeholder->replaceAllUsesWith(relocated_bitcast); - - m_reloc_placeholder->eraseFromParent(); - - return true; -} - -bool -IRForTarget::StripAllGVs (Module &llvm_module) -{ - lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - std::vector<GlobalVariable *> global_vars; - std::set<GlobalVariable *>erased_vars; - - bool erased = true; - - while (erased) - { - erased = false; - - for (GlobalVariable &global_var : llvm_module.globals()) - { - global_var.removeDeadConstantUsers(); - - if (global_var.use_empty()) - { - if (log) - log->Printf("Did remove %s", - PrintValue(&global_var).c_str()); - global_var.eraseFromParent(); - erased = true; - break; - } - } - } - - for (GlobalVariable &global_var : llvm_module.globals()) - { - GlobalValue::user_iterator ui = global_var.user_begin(); - - if (log) - log->Printf("Couldn't remove %s because of %s", - PrintValue(&global_var).c_str(), - PrintValue(*ui).c_str()); - } - - return true; -} - -bool IRForTarget::runOnModule (Module &llvm_module) { lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); @@ -2530,25 +1961,29 @@ IRForTarget::runOnModule (Module &llvm_module) log->Printf("Module as passed in to IRForTarget: \n\"%s\"", s.c_str()); } - Function* main_function = m_module->getFunction(StringRef(m_func_name.c_str())); + Function *const main_function = m_func_name.IsEmpty() ? nullptr : m_module->getFunction(m_func_name.GetStringRef()); - if (!main_function) + if (!m_func_name.IsEmpty() && !main_function) { if (log) - log->Printf("Couldn't find \"%s()\" in the module", m_func_name.c_str()); + log->Printf("Couldn't find \"%s()\" in the module", m_func_name.AsCString()); if (m_error_stream) - m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find wrapper '%s' in the module", m_func_name.c_str()); + m_error_stream->Printf("Internal error [IRForTarget]: Couldn't find wrapper '%s' in the module", + m_func_name.AsCString()); return false; } - if (!FixFunctionLinkage (*main_function)) + if (main_function) { - if (log) - log->Printf("Couldn't fix the linkage for the function"); + if (!FixFunctionLinkage(*main_function)) + { + if (log) + log->Printf("Couldn't fix the linkage for the function"); - return false; + return false; + } } llvm::Type *int8_ty = Type::getInt8Ty(m_module->getContext()); @@ -2567,14 +2002,17 @@ IRForTarget::runOnModule (Module &llvm_module) // Replace $__lldb_expr_result with a persistent variable // - if (!CreateResultVariable(*main_function)) + if (main_function) { - if (log) - log->Printf("CreateResultVariable() failed"); + if (!CreateResultVariable(*main_function)) + { + if (log) + log->Printf("CreateResultVariable() failed"); - // CreateResultVariable() reports its own errors, so we don't do so here + // CreateResultVariable() reports its own errors, so we don't do so here - return false; + return false; + } } if (log && log->GetVerbose()) @@ -2650,20 +2088,6 @@ IRForTarget::runOnModule (Module &llvm_module) return false; } - /////////////////////////////// - // Resolve function pointers - // - - if (!ResolveFunctionPointers(llvm_module)) - { - if (log) - log->Printf("ResolveFunctionPointers() failed"); - - // ResolveFunctionPointers() reports its own errors, so we don't do so here - - return false; - } - for (Module::iterator fi = m_module->begin(), fe = m_module->end(); fi != fe; ++fi) @@ -2705,14 +2129,6 @@ IRForTarget::runOnModule (Module &llvm_module) return false; } - - if (!ReplaceStaticLiterals(*bbi)) - { - if (log) - log->Printf("ReplaceStaticLiterals() failed"); - - return false; - } } } @@ -2720,46 +2136,27 @@ IRForTarget::runOnModule (Module &llvm_module) // Run function-level passes that only make sense on the main function // - if (!ResolveExternals(*main_function)) - { - if (log) - log->Printf("ResolveExternals() failed"); - - // ResolveExternals() reports its own errors, so we don't do so here - - return false; - } - - if (!ReplaceVariables(*main_function)) + if (main_function) { - if (log) - log->Printf("ReplaceVariables() failed"); - - // ReplaceVariables() reports its own errors, so we don't do so here - - return false; - } + if (!ResolveExternals(*main_function)) + { + if (log) + log->Printf("ResolveExternals() failed"); - if (!ReplaceStrings()) - { - if (log) - log->Printf("ReplaceStrings() failed"); + // ResolveExternals() reports its own errors, so we don't do so here - return false; - } + return false; + } - if (!CompleteDataAllocation()) - { - if (log) - log->Printf("CompleteDataAllocation() failed"); + if (!ReplaceVariables(*main_function)) + { + if (log) + log->Printf("ReplaceVariables() failed"); - return false; - } + // ReplaceVariables() reports its own errors, so we don't do so here - if (!StripAllGVs(llvm_module)) - { - if (log) - log->Printf("StripAllGVs() failed"); + return false; + } } if (log && log->GetVerbose()) |