1 // Copyright 2020 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef THIRD_PARTY_SQLITE_SQLITE3_SHIM_FIXUPS_H_ 6 #define THIRD_PARTY_SQLITE_SQLITE3_SHIM_FIXUPS_H_ 7 8 // This file contains various fixups for the amalgamated SQLite code. 9 // It is intended to be included in sqlite3_shim.c only. 10 11 #if defined(SQLITE_OMIT_COMPILEOPTION_DIAGS) 12 // When SQLITE_OMIT_COMPILEOPTION_DIAGS is defined, sqlite3.h emits macros 13 // instead of declarations for sqlite3_compileoption_{get,used}(). 14 // 15 // In order to avoid a macro redefinition warning, we must undo the #define in 16 // rename_exports.h. 17 #if defined(sqlite3_compileoption_get) 18 #undef sqlite3_compileoption_get 19 #else 20 #error "This workaround is no longer needed." 21 #endif // !defined(sqlite3_compileoption_get) 22 #if defined(sqlite3_compileoption_used) 23 #undef sqlite3_compileoption_used 24 #else 25 #error "This workaround is no longer needed." 26 #endif // !defined(sqlite3_compileoption_used) 27 #endif // defined(SQLITE_OMIT_COMPILEOPTION_DIAGS) 28 29 // Linux-specific configuration fixups. 30 #if defined(__linux__) 31 32 // features.h, included below, indirectly includes sys/mman.h. The latter header 33 // only defines mremap if _GNU_SOURCE is defined. Depending on the order of the 34 // files in the amalgamation, removing the define below may result in a build 35 // error on Linux. 36 #if defined(__GNUC__) && !defined(_GNU_SOURCE) 37 #define _GNU_SOURCE 38 #endif 39 #include <features.h> 40 41 // SQLite wants to track malloc sizes. On OSX it uses malloc_size(), on Windows 42 // _msize(), elsewhere it handles it manually by enlarging the malloc and 43 // injecting a field. Enable malloc_usable_size() for Linux. 44 // 45 // malloc_usable_size() is not exported by the Android NDK. It is not 46 // implemented by uclibc. 47 #if !defined(__UCLIBC__) && !defined(__ANDROID__) 48 #define HAVE_MALLOC_H 1 49 #define HAVE_MALLOC_USABLE_SIZE 1 50 #endif 51 52 #endif // defined(__linux__) 53 54 // For unfortunately complex reasons, Chrome has release builds where 55 // DCHECK_IS_ON() (so we want SQLITE_DEBUG to be on) but NDEBUG is also defined. 56 // This causes declarations for mutex-checking functions used by SQLITE_DEBUG 57 // code (sqlite3_mutex_held, sqlite3_mutex_notheld) to be omitted, resulting in 58 // warnings. 59 // 60 // The easiest solution for now is to undefine NDEBUG when SQLITE_DEBUG is 61 // defined. The #undef only takes effect for the SQLite implementation (included 62 // below), and does not impact any dependency. 63 #if defined(SQLITE_DEBUG) && defined(NDEBUG) 64 #undef NDEBUG 65 #endif // defined(SQLITE_DEBUG) && defined(NDEBUG) 66 67 #endif // THIRD_PARTY_SQLITE_SQLITE3_SHIM_FIXUPS_H_ 68