9189a26664
Initial platform support for COFF/x86_64. Completed features: * Statically linked orc runtime. * Full linking/initialization of static/dynamic vc runtimes and microsoft stl libraries. * SEH exception handling. * Full static initializers support * dlfns * JIT side symbol lookup/dispatch Things to note: * It uses vc runtime libraries found in vc toolchain installations. * Bootstrapping state is separated because when statically linking orc runtime it needs microsoft stl functions to initialize the orc runtime, but static initializers need to be ran in order to fully initialize stl libraries. * Process symbols can't be used blidnly on msvc platform; otherwise duplicate definition error gets generated. If process symbols are used, it's destined to get out-of-reach error at some point. * Atexit currently not handled -- will be handled in the follow-up patches. Reviewed By: lhames Differential Revision: https://reviews.llvm.org/D130479
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//===- common.h - Common utilities for the ORC runtime ----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of the ORC runtime support library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef ORC_RT_COMMON_H
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#define ORC_RT_COMMON_H
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#include "compiler.h"
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#include "orc/c_api.h"
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#include <type_traits>
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/// This macro should be used to define tags that will be associated with
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/// handlers in the JIT process, and call can be used to define tags f
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#define ORC_RT_JIT_DISPATCH_TAG(X) \
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extern "C" char X; \
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char X = 0;
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/// Opaque struct for external symbols.
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struct __orc_rt_Opaque {};
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/// Error reporting function.
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extern "C" void __orc_rt_log_error(const char *ErrMsg);
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/// Context object for dispatching calls to the JIT object.
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///
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/// This is declared for use by the runtime, but should be implemented in the
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/// executor or provided by a definition added to the JIT before the runtime
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/// is loaded.
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ORC_RT_IMPORT __orc_rt_Opaque __orc_rt_jit_dispatch_ctx ORC_RT_WEAK_IMPORT;
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/// For dispatching calls to the JIT object.
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///
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/// This is declared for use by the runtime, but should be implemented in the
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/// executor or provided by a definition added to the JIT before the runtime
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/// is loaded.
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ORC_RT_IMPORT __orc_rt_CWrapperFunctionResult
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__orc_rt_jit_dispatch(__orc_rt_Opaque *DispatchCtx, const void *FnTag,
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const char *Data, size_t Size) ORC_RT_WEAK_IMPORT;
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#endif // ORC_RT_COMMON_H
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