mirror of
https://github.com/asmjit/asmjit
synced 2026-06-08 13:13:30 +00:00
kobalicek
145 lines
4.6 KiB
C++
145 lines
4.6 KiB
C++
// AsmJit - Machine code generation for C++
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//
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// * Official AsmJit Home Page: https://asmjit.com
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// * Official Github Repository: https://github.com/asmjit/asmjit
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//
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// Copyright (c) 2008-2020 The AsmJit Authors
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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#include "../core/api-build_p.h"
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#include "../core/arch.h"
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#include "../core/func.h"
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#include "../core/type.h"
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#ifdef ASMJIT_BUILD_X86
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#include "../x86/x86internal_p.h"
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#include "../x86/x86operand.h"
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#endif
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#ifdef ASMJIT_BUILD_ARM
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#include "../arm/arminternal_p.h"
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#include "../arm/armoperand.h"
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#endif
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ASMJIT_BEGIN_NAMESPACE
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// ============================================================================
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// [asmjit::FuncDetail - Init / Reset]
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// ============================================================================
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ASMJIT_FAVOR_SIZE Error FuncDetail::init(const FuncSignature& sign) {
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uint32_t ccId = sign.callConv();
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CallConv& cc = _callConv;
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uint32_t argCount = sign.argCount();
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if (ASMJIT_UNLIKELY(argCount > Globals::kMaxFuncArgs))
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return DebugUtils::errored(kErrorInvalidArgument);
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ASMJIT_PROPAGATE(cc.init(ccId));
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uint32_t gpSize = (cc.archId() == ArchInfo::kIdX86) ? 4 : 8;
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uint32_t deabstractDelta = Type::deabstractDeltaOfSize(gpSize);
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const uint8_t* args = sign.args();
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for (uint32_t i = 0; i < argCount; i++) {
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FuncValue& arg = _args[i];
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arg.initTypeId(Type::deabstract(args[i], deabstractDelta));
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}
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_argCount = uint8_t(argCount);
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_vaIndex = uint8_t(sign.vaIndex());
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uint32_t ret = sign.ret();
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if (ret != Type::kIdVoid) {
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_rets[0].initTypeId(Type::deabstract(ret, deabstractDelta));
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_retCount = 1;
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}
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#ifdef ASMJIT_BUILD_X86
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if (CallConv::isX86Family(ccId))
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return x86::X86Internal::initFuncDetail(*this, sign, gpSize);
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#endif
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#ifdef ASMJIT_BUILD_ARM
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if (CallConv::isArmFamily(ccId))
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return arm::ArmInternal::initFuncDetail(*this, sign, gpSize);
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#endif
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// We should never bubble here as if `cc.init()` succeeded then there has to
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// be an implementation for the current architecture. However, stay safe.
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return DebugUtils::errored(kErrorInvalidArgument);
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}
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// ============================================================================
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// [asmjit::FuncFrame - Init / Reset / Finalize]
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// ============================================================================
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ASMJIT_FAVOR_SIZE Error FuncFrame::init(const FuncDetail& func) noexcept {
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uint32_t ccId = func.callConv().id();
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#ifdef ASMJIT_BUILD_X86
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if (CallConv::isX86Family(ccId))
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return x86::X86Internal::initFuncFrame(*this, func);
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#endif
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#ifdef ASMJIT_BUILD_ARM
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if (CallConv::isArmFamily(ccId))
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return arm::ArmInternal::initFuncFrame(*this, func);
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#endif
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return DebugUtils::errored(kErrorInvalidArgument);
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}
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ASMJIT_FAVOR_SIZE Error FuncFrame::finalize() noexcept {
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#ifdef ASMJIT_BUILD_X86
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if (ArchInfo::isX86Family(archId()))
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return x86::X86Internal::finalizeFuncFrame(*this);
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#endif
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#ifdef ASMJIT_BUILD_ARM
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if (ArchInfo::isArmFamily(archId()))
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return arm::ArmInternal::finalizeFuncFrame(*this);
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#endif
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return DebugUtils::errored(kErrorInvalidArgument);
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}
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// ============================================================================
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// [asmjit::FuncArgsAssignment]
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// ============================================================================
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ASMJIT_FAVOR_SIZE Error FuncArgsAssignment::updateFuncFrame(FuncFrame& frame) const noexcept {
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const FuncDetail* func = funcDetail();
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if (!func) return DebugUtils::errored(kErrorInvalidState);
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uint32_t ccId = func->callConv().id();
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#ifdef ASMJIT_BUILD_X86
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if (CallConv::isX86Family(ccId))
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return x86::X86Internal::argsToFuncFrame(*this, frame);
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#endif
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#ifdef ASMJIT_BUILD_ARM
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if (CallConv::isArmFamily(ccId))
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return arm::ArmInternal::argsToFuncFrame(*this, frame);
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#endif
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return DebugUtils::errored(kErrorInvalidArch);
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}
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ASMJIT_END_NAMESPACE
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