| Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1 | /* Copyright (c) 2005-2006 ActiveState Software Inc. |
| 2 | * |
| 3 | * Namespace all expat exported symbols to avoid dynamic loading symbol |
| 4 | * collisions when embedding Python. |
| 5 | * |
| 6 | * The Problem: |
| 7 | * - you embed Python in some app |
| 8 | * - the app dynamically loads libexpat of version X |
| 9 | * - the embedded Python imports pyexpat (which was built against |
| 10 | * libexpat version X+n) |
| 11 | * --> pyexpat gets the expat symbols from the already loaded and *older* |
| 12 | * libexpat: crash (Specifically the crash we observed was in |
| 13 | * getting an old XML_ErrorString (from xmlparse.c) and then calling |
| 14 | * it with newer values in the XML_Error enum: |
| 15 | * |
| 16 | * // pyexpat.c, line 1970 |
| 17 | * ... |
| 18 | * // Added in Expat 1.95.7. |
| 19 | * MYCONST(XML_ERROR_UNBOUND_PREFIX); |
| 20 | * ... |
| 21 | * |
| 22 | * |
| 23 | * The Solution: |
| 24 | * Prefix all a exported symbols with "PyExpat_". This is similar to |
| 25 | * what Mozilla does for some common libs: |
| 26 | * http://lxr.mozilla.org/seamonkey/source/modules/libimg/png/mozpngconf.h#115 |
| 27 | * |
| 28 | * The list of relevant exported symbols can be had with this command: |
| 29 | * |
| 30 | nm pyexpat.so \ |
| 31 | | grep -v " [a-zBUA] " \ |
| 32 | | grep -v "_fini\|_init\|initpyexpat" |
| 33 | * |
| 34 | * If any of those symbols are NOT prefixed with "PyExpat_" then |
| 35 | * a #define should be added for it here. |
| 36 | */ |
| 37 | |
| 38 | #ifndef PYEXPATNS_H |
| 39 | #define PYEXPATNS_H |
| 40 | |
| 41 | #define XML_DefaultCurrent PyExpat_XML_DefaultCurrent |
| 42 | #define XML_ErrorString PyExpat_XML_ErrorString |
| 43 | #define XML_ExpatVersion PyExpat_XML_ExpatVersion |
| 44 | #define XML_ExpatVersionInfo PyExpat_XML_ExpatVersionInfo |
| 45 | #define XML_ExternalEntityParserCreate PyExpat_XML_ExternalEntityParserCreate |
| 46 | #define XML_FreeContentModel PyExpat_XML_FreeContentModel |
| 47 | #define XML_GetBase PyExpat_XML_GetBase |
| 48 | #define XML_GetBuffer PyExpat_XML_GetBuffer |
| 49 | #define XML_GetCurrentByteCount PyExpat_XML_GetCurrentByteCount |
| 50 | #define XML_GetCurrentByteIndex PyExpat_XML_GetCurrentByteIndex |
| 51 | #define XML_GetCurrentColumnNumber PyExpat_XML_GetCurrentColumnNumber |
| 52 | #define XML_GetCurrentLineNumber PyExpat_XML_GetCurrentLineNumber |
| 53 | #define XML_GetErrorCode PyExpat_XML_GetErrorCode |
| 54 | #define XML_GetFeatureList PyExpat_XML_GetFeatureList |
| 55 | #define XML_GetIdAttributeIndex PyExpat_XML_GetIdAttributeIndex |
| 56 | #define XML_GetInputContext PyExpat_XML_GetInputContext |
| 57 | #define XML_GetParsingStatus PyExpat_XML_GetParsingStatus |
| 58 | #define XML_GetSpecifiedAttributeCount PyExpat_XML_GetSpecifiedAttributeCount |
| 59 | #define XmlGetUtf16InternalEncoding PyExpat_XmlGetUtf16InternalEncoding |
| 60 | #define XmlGetUtf16InternalEncodingNS PyExpat_XmlGetUtf16InternalEncodingNS |
| 61 | #define XmlGetUtf8InternalEncoding PyExpat_XmlGetUtf8InternalEncoding |
| 62 | #define XmlGetUtf8InternalEncodingNS PyExpat_XmlGetUtf8InternalEncodingNS |
| 63 | #define XmlInitEncoding PyExpat_XmlInitEncoding |
| 64 | #define XmlInitEncodingNS PyExpat_XmlInitEncodingNS |
| 65 | #define XmlInitUnknownEncoding PyExpat_XmlInitUnknownEncoding |
| 66 | #define XmlInitUnknownEncodingNS PyExpat_XmlInitUnknownEncodingNS |
| 67 | #define XML_MemFree PyExpat_XML_MemFree |
| 68 | #define XML_MemMalloc PyExpat_XML_MemMalloc |
| 69 | #define XML_MemRealloc PyExpat_XML_MemRealloc |
| 70 | #define XML_Parse PyExpat_XML_Parse |
| 71 | #define XML_ParseBuffer PyExpat_XML_ParseBuffer |
| 72 | #define XML_ParserCreate PyExpat_XML_ParserCreate |
| 73 | #define XML_ParserCreate_MM PyExpat_XML_ParserCreate_MM |
| 74 | #define XML_ParserCreateNS PyExpat_XML_ParserCreateNS |
| 75 | #define XML_ParserFree PyExpat_XML_ParserFree |
| 76 | #define XML_ParserReset PyExpat_XML_ParserReset |
| 77 | #define XmlParseXmlDecl PyExpat_XmlParseXmlDecl |
| 78 | #define XmlParseXmlDeclNS PyExpat_XmlParseXmlDeclNS |
| 79 | #define XmlPrologStateInit PyExpat_XmlPrologStateInit |
| 80 | #define XmlPrologStateInitExternalEntity PyExpat_XmlPrologStateInitExternalEntity |
| 81 | #define XML_ResumeParser PyExpat_XML_ResumeParser |
| 82 | #define XML_SetAttlistDeclHandler PyExpat_XML_SetAttlistDeclHandler |
| 83 | #define XML_SetBase PyExpat_XML_SetBase |
| 84 | #define XML_SetCdataSectionHandler PyExpat_XML_SetCdataSectionHandler |
| 85 | #define XML_SetCharacterDataHandler PyExpat_XML_SetCharacterDataHandler |
| 86 | #define XML_SetCommentHandler PyExpat_XML_SetCommentHandler |
| 87 | #define XML_SetDefaultHandler PyExpat_XML_SetDefaultHandler |
| 88 | #define XML_SetDefaultHandlerExpand PyExpat_XML_SetDefaultHandlerExpand |
| 89 | #define XML_SetDoctypeDeclHandler PyExpat_XML_SetDoctypeDeclHandler |
| 90 | #define XML_SetElementDeclHandler PyExpat_XML_SetElementDeclHandler |
| 91 | #define XML_SetElementHandler PyExpat_XML_SetElementHandler |
| 92 | #define XML_SetEncoding PyExpat_XML_SetEncoding |
| 93 | #define XML_SetEndCdataSectionHandler PyExpat_XML_SetEndCdataSectionHandler |
| 94 | #define XML_SetEndDoctypeDeclHandler PyExpat_XML_SetEndDoctypeDeclHandler |
| 95 | #define XML_SetEndElementHandler PyExpat_XML_SetEndElementHandler |
| 96 | #define XML_SetEndNamespaceDeclHandler PyExpat_XML_SetEndNamespaceDeclHandler |
| 97 | #define XML_SetEntityDeclHandler PyExpat_XML_SetEntityDeclHandler |
| 98 | #define XML_SetExternalEntityRefHandler PyExpat_XML_SetExternalEntityRefHandler |
| 99 | #define XML_SetExternalEntityRefHandlerArg PyExpat_XML_SetExternalEntityRefHandlerArg |
| 100 | #define XML_SetNamespaceDeclHandler PyExpat_XML_SetNamespaceDeclHandler |
| 101 | #define XML_SetNotationDeclHandler PyExpat_XML_SetNotationDeclHandler |
| 102 | #define XML_SetNotStandaloneHandler PyExpat_XML_SetNotStandaloneHandler |
| 103 | #define XML_SetParamEntityParsing PyExpat_XML_SetParamEntityParsing |
| 104 | #define XML_SetProcessingInstructionHandler PyExpat_XML_SetProcessingInstructionHandler |
| 105 | #define XML_SetReturnNSTriplet PyExpat_XML_SetReturnNSTriplet |
| 106 | #define XML_SetSkippedEntityHandler PyExpat_XML_SetSkippedEntityHandler |
| 107 | #define XML_SetStartCdataSectionHandler PyExpat_XML_SetStartCdataSectionHandler |
| 108 | #define XML_SetStartDoctypeDeclHandler PyExpat_XML_SetStartDoctypeDeclHandler |
| 109 | #define XML_SetStartElementHandler PyExpat_XML_SetStartElementHandler |
| 110 | #define XML_SetStartNamespaceDeclHandler PyExpat_XML_SetStartNamespaceDeclHandler |
| 111 | #define XML_SetUnknownEncodingHandler PyExpat_XML_SetUnknownEncodingHandler |
| 112 | #define XML_SetUnparsedEntityDeclHandler PyExpat_XML_SetUnparsedEntityDeclHandler |
| 113 | #define XML_SetUserData PyExpat_XML_SetUserData |
| 114 | #define XML_SetXmlDeclHandler PyExpat_XML_SetXmlDeclHandler |
| 115 | #define XmlSizeOfUnknownEncoding PyExpat_XmlSizeOfUnknownEncoding |
| 116 | #define XML_StopParser PyExpat_XML_StopParser |
| 117 | #define XML_UseForeignDTD PyExpat_XML_UseForeignDTD |
| 118 | #define XML_UseParserAsHandlerArg PyExpat_XML_UseParserAsHandlerArg |
| 119 | #define XmlUtf16Encode PyExpat_XmlUtf16Encode |
| 120 | #define XmlUtf8Encode PyExpat_XmlUtf8Encode |
| 121 | |
| 122 | |
| 123 | #endif /* !PYEXPATNS_H */ |
| 124 | |