1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "linker.h"
30 #include "linker_globals.h"
31 #include "linker_namespaces.h"
32
33 #include "android-base/stringprintf.h"
34
35 int g_argc = 0;
36 char** g_argv = nullptr;
37 char** g_envp = nullptr;
38
39 android_namespace_t g_default_namespace;
40
41 std::unordered_map<uintptr_t, soinfo*> g_soinfo_handles_map;
42
43 static char __linker_dl_err_buf[768];
44
linker_get_error_buffer()45 char* linker_get_error_buffer() {
46 return &__linker_dl_err_buf[0];
47 }
48
linker_get_error_buffer_size()49 size_t linker_get_error_buffer_size() {
50 return sizeof(__linker_dl_err_buf);
51 }
52
DL_WARN_documented_change(int api_level,const char * doc_link,const char * fmt,...)53 void DL_WARN_documented_change(int api_level, const char* doc_link, const char* fmt, ...) {
54 std::string result{"Warning: "};
55
56 va_list ap;
57 va_start(ap, fmt);
58 android::base::StringAppendV(&result, fmt, ap);
59 va_end(ap);
60
61 android::base::StringAppendF(&result,
62 " and will not work when the app moves to API level %d or later "
63 "(https://android.googlesource.com/platform/bionic/+/master/%s) "
64 "(allowing for now because this app's target API level is still %d)",
65 api_level, doc_link, get_application_target_sdk_version());
66 DL_WARN("%s", result.c_str());
67 }
68