f363f9d61e
With the help of @lhames, This pull request introduces the dlupdate function in the ORC runtime. dlupdate enables incremental execution of new initializers introduced in the REPL environment. Unlike traditional dlopen, which manages initializers, code mapping, and library reference counts, dlupdate focuses exclusively on running new initializers.
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
//===- elfnix_platform.h ----------------------------------------*- 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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// ORC Runtime support for dynamic loading features on ELF-based platforms.
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//
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//===----------------------------------------------------------------------===//
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#ifndef ORC_RT_ELFNIX_PLATFORM_H
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#define ORC_RT_ELFNIX_PLATFORM_H
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#include "common.h"
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#include "executor_address.h"
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// Atexit functions.
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ORC_RT_INTERFACE int __orc_rt_elfnix_cxa_atexit(void (*func)(void *), void *arg,
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void *dso_handle);
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ORC_RT_INTERFACE int __orc_rt_elfnix_atexit(void (*func)(void *));
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ORC_RT_INTERFACE void __orc_rt_elfnix_cxa_finalize(void *dso_handle);
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// dlfcn functions.
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ORC_RT_INTERFACE const char *__orc_rt_elfnix_jit_dlerror();
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ORC_RT_INTERFACE void *__orc_rt_elfnix_jit_dlopen(const char *path, int mode);
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ORC_RT_INTERFACE int __orc_rt_elfnix_jit_dlupdate(void *dso_handle);
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ORC_RT_INTERFACE int __orc_rt_elfnix_jit_dlclose(void *dso_handle);
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ORC_RT_INTERFACE void *__orc_rt_elfnix_jit_dlsym(void *dso_handle,
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const char *symbol);
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namespace orc_rt {
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namespace elfnix {
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struct ELFNixPerObjectSectionsToRegister {
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ExecutorAddrRange EHFrameSection;
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ExecutorAddrRange ThreadDataSection;
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};
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using ELFNixJITDylibDepInfo = std::vector<ExecutorAddr>;
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using ELFNixJITDylibDepInfoMap =
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std::unordered_map<ExecutorAddr, ELFNixJITDylibDepInfo>;
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enum dlopen_mode : int {
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ORC_RT_RTLD_LAZY = 0x1,
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ORC_RT_RTLD_NOW = 0x2,
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ORC_RT_RTLD_LOCAL = 0x4,
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ORC_RT_RTLD_GLOBAL = 0x8
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};
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} // namespace elfnix
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using SPSELFNixPerObjectSectionsToRegister =
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SPSTuple<SPSExecutorAddrRange, SPSExecutorAddrRange>;
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template <>
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class SPSSerializationTraits<SPSELFNixPerObjectSectionsToRegister,
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elfnix::ELFNixPerObjectSectionsToRegister> {
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public:
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static size_t size(const elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
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return SPSELFNixPerObjectSectionsToRegister::AsArgList::size(
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MOPOSR.EHFrameSection, MOPOSR.ThreadDataSection);
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}
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static bool
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serialize(SPSOutputBuffer &OB,
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const elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
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return SPSELFNixPerObjectSectionsToRegister::AsArgList::serialize(
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OB, MOPOSR.EHFrameSection, MOPOSR.ThreadDataSection);
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}
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static bool deserialize(SPSInputBuffer &IB,
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elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
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return SPSELFNixPerObjectSectionsToRegister::AsArgList::deserialize(
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IB, MOPOSR.EHFrameSection, MOPOSR.ThreadDataSection);
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}
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};
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using SPSELFNixJITDylibDepInfo = SPSSequence<SPSExecutorAddr>;
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using SPSELFNixJITDylibDepInfoMap =
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SPSSequence<SPSTuple<SPSExecutorAddr, SPSELFNixJITDylibDepInfo>>;
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} // namespace orc_rt
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#endif // ORC_RT_ELFNIX_PLATFORM_H
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