1//===- elfnix_platform.h ----------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// ORC Runtime support for dynamic loading features on ELF-based platforms.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef ORC_RT_ELFNIX_PLATFORM_H
14#define ORC_RT_ELFNIX_PLATFORM_H
15
16#include "common.h"
17#include "executor_address.h"
18
19// Atexit functions.
20ORC_RT_INTERFACE int __orc_rt_elfnix_cxa_atexit(void (*func)(void *), void *arg,
21 void *dso_handle);
22ORC_RT_INTERFACE int __orc_rt_elfnix_atexit(void (*func)(void *));
23ORC_RT_INTERFACE void __orc_rt_elfnix_cxa_finalize(void *dso_handle);
24
25// dlfcn functions.
26ORC_RT_INTERFACE const char *__orc_rt_elfnix_jit_dlerror();
27ORC_RT_INTERFACE void *__orc_rt_elfnix_jit_dlopen(const char *path, int mode);
28ORC_RT_INTERFACE int __orc_rt_elfnix_jit_dlupdate(void *dso_handle);
29ORC_RT_INTERFACE int __orc_rt_elfnix_jit_dlclose(void *dso_handle);
30ORC_RT_INTERFACE void *__orc_rt_elfnix_jit_dlsym(void *dso_handle,
31 const char *symbol);
32
33namespace orc_rt {
34namespace elfnix {
35
36struct ELFNixPerObjectSectionsToRegister {
37 ExecutorAddrRange EHFrameSection;
38 ExecutorAddrRange ThreadDataSection;
39};
40
41using ELFNixJITDylibDepInfo = std::vector<ExecutorAddr>;
42
43using ELFNixJITDylibDepInfoMap =
44 std::unordered_map<ExecutorAddr, ELFNixJITDylibDepInfo>;
45
46enum dlopen_mode : int {
47 ORC_RT_RTLD_LAZY = 0x1,
48 ORC_RT_RTLD_NOW = 0x2,
49 ORC_RT_RTLD_LOCAL = 0x4,
50 ORC_RT_RTLD_GLOBAL = 0x8
51};
52
53} // namespace elfnix
54
55using SPSELFNixPerObjectSectionsToRegister =
56 SPSTuple<SPSExecutorAddrRange, SPSExecutorAddrRange>;
57
58template <>
59class SPSSerializationTraits<SPSELFNixPerObjectSectionsToRegister,
60 elfnix::ELFNixPerObjectSectionsToRegister> {
61
62public:
63 static size_t size(const elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
64 return SPSELFNixPerObjectSectionsToRegister::AsArgList::size(
65 Arg: MOPOSR.EHFrameSection, Args: MOPOSR.ThreadDataSection);
66 }
67
68 static bool
69 serialize(SPSOutputBuffer &OB,
70 const elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
71 return SPSELFNixPerObjectSectionsToRegister::AsArgList::serialize(
72 OB, Arg: MOPOSR.EHFrameSection, Args: MOPOSR.ThreadDataSection);
73 }
74
75 static bool deserialize(SPSInputBuffer &IB,
76 elfnix::ELFNixPerObjectSectionsToRegister &MOPOSR) {
77 return SPSELFNixPerObjectSectionsToRegister::AsArgList::deserialize(
78 IB, Arg&: MOPOSR.EHFrameSection, Args&: MOPOSR.ThreadDataSection);
79 }
80};
81
82using SPSELFNixJITDylibDepInfo = SPSSequence<SPSExecutorAddr>;
83using SPSELFNixJITDylibDepInfoMap =
84 SPSSequence<SPSTuple<SPSExecutorAddr, SPSELFNixJITDylibDepInfo>>;
85
86} // namespace orc_rt
87
88#endif // ORC_RT_ELFNIX_PLATFORM_H
89