| 1 | //===-- ThreadPlanCallFunctionUsingABI.cpp --------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "lldb/Target/ThreadPlanCallFunctionUsingABI.h" |
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| 10 | #include "lldb/Core/Address.h" |
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| 11 | #include "lldb/Target/Process.h" |
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| 12 | #include "lldb/Target/RegisterContext.h" |
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| 13 | #include "lldb/Target/Target.h" |
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| 14 | #include "lldb/Target/Thread.h" |
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| 15 | #include "lldb/Utility/Log.h" |
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| 16 | #include "lldb/Utility/Stream.h" |
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| 17 | |
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| 18 | using namespace lldb; |
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| 19 | using namespace lldb_private; |
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| 20 | |
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| 21 | // ThreadPlanCallFunctionUsingABI: Plan to call a single function using the ABI |
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| 22 | // instead of JIT |
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| 23 | ThreadPlanCallFunctionUsingABI::ThreadPlanCallFunctionUsingABI( |
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| 24 | Thread &thread, const Address &function, llvm::Type &prototype, |
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| 25 | llvm::Type &return_type, llvm::ArrayRef<ABI::CallArgument> args, |
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| 26 | const EvaluateExpressionOptions &options) |
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| 27 | : ThreadPlanCallFunction(thread, function, options), |
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| 28 | m_return_type(return_type) { |
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| 29 | lldb::addr_t start_load_addr = LLDB_INVALID_ADDRESS; |
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| 30 | lldb::addr_t function_load_addr = LLDB_INVALID_ADDRESS; |
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| 31 | ABI *abi = nullptr; |
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| 32 | |
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| 33 | if (!ConstructorSetup(thread, abi, start_load_addr, function_load_addr)) |
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| 34 | return; |
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| 35 | |
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| 36 | if (!abi->PrepareTrivialCall(thread, sp: m_function_sp, functionAddress: function_load_addr, |
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| 37 | returnAddress: start_load_addr, prototype, args)) |
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| 38 | return; |
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| 39 | |
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| 40 | ReportRegisterState(message: "ABI Function call was set up. Register state was:" ); |
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| 41 | |
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| 42 | m_valid = true; |
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| 43 | } |
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| 44 | |
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| 45 | ThreadPlanCallFunctionUsingABI::~ThreadPlanCallFunctionUsingABI() = default; |
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| 46 | |
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| 47 | void ThreadPlanCallFunctionUsingABI::GetDescription(Stream *s, |
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| 48 | DescriptionLevel level) { |
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| 49 | if (level == eDescriptionLevelBrief) { |
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| 50 | s->Printf(format: "Function call thread plan using ABI instead of JIT" ); |
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| 51 | } else { |
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| 52 | s->Printf(format: "Thread plan to call 0x%" PRIx64 " using ABI instead of JIT" , |
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| 53 | m_function_addr.GetLoadAddress(target: &GetTarget())); |
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| 54 | } |
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| 55 | } |
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| 56 | |
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| 57 | void ThreadPlanCallFunctionUsingABI::SetReturnValue() { |
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| 58 | const ABI *abi = m_process.GetABI().get(); |
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| 59 | |
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| 60 | // Ask the abi for the return value |
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| 61 | if (abi) { |
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| 62 | const bool persistent = false; |
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| 63 | m_return_valobj_sp = |
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| 64 | abi->GetReturnValueObject(thread&: GetThread(), type&: m_return_type, persistent); |
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| 65 | } |
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| 66 | } |
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| 67 | |
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