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1 /* Internals of libgccjit: implementation of gcc_jit_result
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2 Copyright (C) 2013-2020 Free Software Foundation, Inc.
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3 Contributed by David Malcolm <dmalcolm@redhat.com>.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "config.h"
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22 #include "system.h"
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23 #include "coretypes.h"
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24
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25 #include "jit-common.h"
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26 #include "jit-logging.h"
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27 #include "jit-result.h"
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28 #include "jit-tempdir.h"
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29
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30 namespace gcc {
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31 namespace jit {
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32
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33 /* Constructor for gcc::jit::result. */
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34
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35 result::
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36 result(logger *logger, void *dso_handle, tempdir *tempdir_) :
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37 log_user (logger),
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38 m_dso_handle (dso_handle),
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39 m_tempdir (tempdir_)
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40 {
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41 JIT_LOG_SCOPE (get_logger ());
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42 }
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43
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44 /* gcc::jit::result's destructor.
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45
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46 Called implicitly by gcc_jit_result_release. */
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47
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48 result::~result()
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49 {
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50 JIT_LOG_SCOPE (get_logger ());
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51
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52 dlclose (m_dso_handle);
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53
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54 /* Responsibility for cleaning up the tempdir (including "fake.so" within
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55 the filesystem) might have been handed to us by the playback::context,
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56 so that the cleanup can be delayed (see PR jit/64206).
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57
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58 If so, clean it up now. */
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59 delete m_tempdir;
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60 }
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61
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62 /* Attempt to locate the given function by name within the
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63 playback::result, using dlsym.
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64
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65 Implements the post-error-checking part of
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66 gcc_jit_result_get_code. */
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67
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68 void *
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69 result::
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70 get_code (const char *funcname)
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71 {
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72 JIT_LOG_SCOPE (get_logger ());
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73
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74 void *code;
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75 const char *error;
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76
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77 /* Clear any existing error. */
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78 dlerror ();
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79
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80 code = dlsym (m_dso_handle, funcname);
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81
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82 if ((error = dlerror()) != NULL) {
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83 fprintf(stderr, "%s\n", error);
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84 }
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85
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86 return code;
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87 }
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88
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89 /* Attempt to locate the given global by name within the
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90 playback::result, using dlsym.
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91
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92 Implements the post-error-checking part of
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93 gcc_jit_result_get_global. */
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94
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95 void *
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96 result::
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97 get_global (const char *name)
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98 {
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99 JIT_LOG_SCOPE (get_logger ());
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100
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101 void *global;
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102 const char *error;
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103
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104 /* Clear any existing error. */
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105 dlerror ();
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106
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107 global = dlsym (m_dso_handle, name);
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108
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109 if ((error = dlerror()) != NULL) {
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110 fprintf(stderr, "%s\n", error);
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111 }
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112
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113 return global;
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114 }
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115
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116 } // namespace gcc::jit
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117
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118 } // namespace gcc
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