Files
clang-p2996/lldb/source/Target/ThreadPlanCallFunctionUsingABI.cpp
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
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
2019-01-19 08:50:56 +00:00

71 lines
2.7 KiB
C++

//===-- ThreadPlanCallFunctionUsingABI.cpp ----------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ThreadPlanCallFunctionUsingABI.h"
#include "lldb/Core/Address.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Stream.h"
using namespace lldb;
using namespace lldb_private;
//--------------------------------------------------------------------------------------------
// ThreadPlanCallFunctionUsingABI: Plan to call a single function using the ABI
// instead of JIT
//-------------------------------------------------------------------------------------------
ThreadPlanCallFunctionUsingABI::ThreadPlanCallFunctionUsingABI(
Thread &thread, const Address &function, llvm::Type &prototype,
llvm::Type &return_type, llvm::ArrayRef<ABI::CallArgument> args,
const EvaluateExpressionOptions &options)
: ThreadPlanCallFunction(thread, function, options),
m_return_type(return_type) {
lldb::addr_t start_load_addr = LLDB_INVALID_ADDRESS;
lldb::addr_t function_load_addr = LLDB_INVALID_ADDRESS;
ABI *abi = nullptr;
if (!ConstructorSetup(thread, abi, start_load_addr, function_load_addr))
return;
if (!abi->PrepareTrivialCall(thread, m_function_sp, function_load_addr,
start_load_addr, prototype, args))
return;
ReportRegisterState("ABI Function call was set up. Register state was:");
m_valid = true;
}
ThreadPlanCallFunctionUsingABI::~ThreadPlanCallFunctionUsingABI() = default;
void ThreadPlanCallFunctionUsingABI::GetDescription(Stream *s,
DescriptionLevel level) {
if (level == eDescriptionLevelBrief) {
s->Printf("Function call thread plan using ABI instead of JIT");
} else {
TargetSP target_sp(m_thread.CalculateTarget());
s->Printf("Thread plan to call 0x%" PRIx64 " using ABI instead of JIT",
m_function_addr.GetLoadAddress(target_sp.get()));
}
}
void ThreadPlanCallFunctionUsingABI::SetReturnValue() {
ProcessSP process_sp(m_thread.GetProcess());
const ABI *abi = process_sp ? process_sp->GetABI().get() : nullptr;
// Ask the abi for the return value
if (abi) {
const bool persistent = false;
m_return_valobj_sp =
abi->GetReturnValueObject(m_thread, m_return_type, persistent);
}
}