11968b80af
Currently linker reports all potential dlerrors for example if library was not found in 'this' namespace - it initializes linker error buffer with not found message but when consequent search in linked namespace succeeds this message is droped because dlopen was successful. This commit avoids logging false positive error messages when debug.ld.* set to dlerror. Test: manual Change-Id: I480694a1b1bbacd6bd1d8505cd2ee491710964cc
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __LINKER_GLOBALS_H
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#define __LINKER_GLOBALS_H
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#include <link.h>
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#include <stddef.h>
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#include <unordered_map>
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#define DL_ERR(fmt, x...) \
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do { \
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__libc_format_buffer(linker_get_error_buffer(), linker_get_error_buffer_size(), fmt, ##x); \
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/* If LD_DEBUG is set high enough, log every dlerror(3) message. */ \
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} while (false)
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#define DL_WARN(fmt, x...) \
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do { \
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__libc_format_log(ANDROID_LOG_WARN, "linker", fmt, ##x); \
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__libc_format_fd(2, "WARNING: linker: "); \
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__libc_format_fd(2, fmt, ##x); \
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__libc_format_fd(2, "\n"); \
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} while (false)
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#define DL_ERR_AND_LOG(fmt, x...) \
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do { \
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DL_ERR(fmt, x); \
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PRINT(fmt, x); \
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} while (false)
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constexpr ElfW(Versym) kVersymNotNeeded = 0;
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constexpr ElfW(Versym) kVersymGlobal = 1;
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// These values are used to call constructors for .init_array && .preinit_array
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extern int g_argc;
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extern char** g_argv;
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extern char** g_envp;
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struct soinfo;
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struct android_namespace_t;
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extern android_namespace_t g_default_namespace;
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extern std::unordered_map<uintptr_t, soinfo*> g_soinfo_handles_map;
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// Error buffer "variable"
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char* linker_get_error_buffer();
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size_t linker_get_error_buffer_size();
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#endif /* __LINKER_GLOBALS_H */
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