1 /* Internals of libgccjit: implementation of gcc_jit_result
2 Copyright (C) 2013-2020 Free Software Foundation, Inc.
3 Contributed by David Malcolm <dmalcolm@redhat.com>.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24
25 #include "jit-common.h"
26 #include "jit-logging.h"
27 #include "jit-result.h"
28 #include "jit-tempdir.h"
29
30 namespace gcc {
31 namespace jit {
32
33 /* Constructor for gcc::jit::result. */
34
35 result::
result(logger * logger,void * dso_handle,tempdir * tempdir_)36 result(logger *logger, void *dso_handle, tempdir *tempdir_) :
37 log_user (logger),
38 m_dso_handle (dso_handle),
39 m_tempdir (tempdir_)
40 {
41 JIT_LOG_SCOPE (get_logger ());
42 }
43
44 /* gcc::jit::result's destructor.
45
46 Called implicitly by gcc_jit_result_release. */
47
~result()48 result::~result()
49 {
50 JIT_LOG_SCOPE (get_logger ());
51
52 dlclose (m_dso_handle);
53
54 /* Responsibility for cleaning up the tempdir (including "fake.so" within
55 the filesystem) might have been handed to us by the playback::context,
56 so that the cleanup can be delayed (see PR jit/64206).
57
58 If so, clean it up now. */
59 delete m_tempdir;
60 }
61
62 /* Attempt to locate the given function by name within the
63 playback::result, using dlsym.
64
65 Implements the post-error-checking part of
66 gcc_jit_result_get_code. */
67
68 void *
69 result::
get_code(const char * funcname)70 get_code (const char *funcname)
71 {
72 JIT_LOG_SCOPE (get_logger ());
73
74 void *code;
75 const char *error;
76
77 /* Clear any existing error. */
78 dlerror ();
79
80 code = dlsym (m_dso_handle, funcname);
81
82 if ((error = dlerror()) != NULL) {
83 fprintf(stderr, "%s\n", error);
84 }
85
86 return code;
87 }
88
89 /* Attempt to locate the given global by name within the
90 playback::result, using dlsym.
91
92 Implements the post-error-checking part of
93 gcc_jit_result_get_global. */
94
95 void *
96 result::
get_global(const char * name)97 get_global (const char *name)
98 {
99 JIT_LOG_SCOPE (get_logger ());
100
101 void *global;
102 const char *error;
103
104 /* Clear any existing error. */
105 dlerror ();
106
107 global = dlsym (m_dso_handle, name);
108
109 if ((error = dlerror()) != NULL) {
110 fprintf(stderr, "%s\n", error);
111 }
112
113 return global;
114 }
115
116 } // namespace gcc::jit
117
118 } // namespace gcc
119