GCC Code Coverage Report

Directory: ./
File: src/BackEnd/backend.cpp
Date: 2025-09-09 14:15:01
Exec Total Coverage
Lines: 127 135 94.1%
Functions: 11 11 100.0%
Branches: 249 278 89.6%
Line Branch Exec Source
1 /***************************************
2 Auteur : Pierre Aubert
3 Mail : pierre.aubert@lapp.in2p3.fr
4 Licence : CeCILL-C
5 ****************************************/
6
7 #include "backend.h"
8
9 ///Get the licence in string
10 /** @return licence in string
11 */
12 12 PString cpp_licenceSaveStr(){
13 12 PString body("");
14
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 12 body += "/***************************************\n";
15
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 12 body += "\tAuteur : Pierre Aubert\n";
16
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 12 body += "\tMail : pierre.aubert@lapp.in2p3.fr\n";
17
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 12 body += "\tLicence : CeCILL-C\n";
18
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 12 body += "****************************************/\n\n\n";
19
20
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 12 body += "//Warning : this file has been generated automatically by the phoenix_hpc_proxy program\n";
21
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 12 body += "//You can find it at https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixHPCProxy\n";
22
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 12 body += "//Do NOT modify it\n\n\n";
23 12 return body;
24 ✗ }
25
26 ///Get the handle name of the given function
27 /** @param functionName : function name
28 * @return corresponding function name
29 */
30 12 PString getHandleFunction(const PString & functionName){
31
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 24 return "handle_" + functionName;
32 }
33
34 ///Get the handle type name of the given function
35 /** @param functionName : function name
36 * @return corresponding function name
37 */
38 12 PString getHandleFunctionType(const PString & functionName){
39
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 24 return "FunctionTypehandle_" + functionName;
40 }
41
42 ///Get the update type name of the given file
43 /** @param fileName : file name
44 * @return corresponding function name
45 */
46 9 PString getUpdateFunction(const PPath & fileName){
47
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 9 return "update_" + fileName.eraseExtension();
48 }
49
50 ///Save the function prototype as an inline function
51 /** @param function : PFunction to be used
52 * @return corresponding string
53 */
54 12 PString cpp_backendTableHeaderInline(PFunction & function){
55
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 12 if(function.getOtherCode() != ""){return function.getOtherCode();}
56
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 3 PString body("");
57
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 3 if(function.getDocString() != ""){body += function.getDocString();}
58
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 3 if(function.getTemplateDef() != ""){body += function.getTemplateDef();}
59
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 3 body += "inline " + function.getOutputType() + " " + function.getName() + "(";
60 3 bool isComma(false);
61
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 3 PVecArgument & vecArg = function.getVecArgument();
62
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 30 for(PVecArgument::iterator it(vecArg.begin()); it != vecArg.end(); ++it){
63
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 12 if(isComma){body += ", ";}
64
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 12 body += it->getType() + " ";
65
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 21 if(it->getPtrRef() != ""){body += it->getPtrRef() + " ";}
66
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 12 body += it->getName();
67
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 12 if(it->getDefaultValue() != ""){body += " = " + it->getDefaultValue();}
68 12 isComma = true;
69 }
70
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 3 body += "){\n";
71 3 isComma = false;
72
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 3 body += "\t"+getHandleFunction(function.getName())+"(";
73
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 30 for(PVecArgument::iterator it(vecArg.begin()); it != vecArg.end(); ++it){
74
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 12 if(isComma){body += ", ";}
75
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 12 body += it->getName();
76 12 isComma = true;
77 }
78
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 3 body += ");\n";
79
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 3 body += "}\n\n";
80
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 3 return body;
81 3 }
82
83 ///Save the function prototype as an inline function
84 /** @param function : PFunction to be used
85 * @return corresponding string
86 */
87 12 PString cpp_backendTableHeaderHandleType(PFunction & function){
88
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 12 if(!repr_isFunction(function)){return "";}
89
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 3 PString body("");
90
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 3 body += "typedef " + function.getOutputType() + "(*" + getHandleFunctionType(function.getName()) + ")(";
91 3 bool isComma(false);
92
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 3 PVecArgument & vecArg = function.getVecArgument();
93
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 30 for(PVecArgument::iterator it(vecArg.begin()); it != vecArg.end(); ++it){
94
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 12 if(isComma){body += ", ";}
95
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 12 body += it->getType();
96
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 21 if(it->getPtrRef() != ""){body += " " + it->getPtrRef();}
97 12 isComma = true;
98 }
99
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 3 body += ");\n";
100
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 3 return body;
101 3 }
102
103 ///Save the header of the given PSource
104 /** @param source : PSource to be used
105 * @return corresponding string
106 */
107 3 PString cpp_backendHeader(PSource & source){
108
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 3 PString body(cpp_licenceSaveStr());
109
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 3 PString baseMacro("__" + source.getName().eraseExtension().toUpper() + "_PROXY_H__");
110
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 3 body += "#ifndef " + baseMacro + "\n";
111
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 3 body += "#define " + baseMacro + "\n\n";
112
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 3 body += "#include <iostream>\n\n\n";
113
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 3 PVecFunction & vecFunction = source.getVecFunction();
114
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 30 for(PVecFunction::iterator it(vecFunction.begin()); it != vecFunction.end(); ++it){
115
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 12 body += cpp_backendTableHeaderHandleType(*it);
116 }
117
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 3 body += "\n\n";
118
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 30 for(PVecFunction::iterator it(vecFunction.begin()); it != vecFunction.end(); ++it){
119
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 12 if(!repr_isFunction(*it)){continue;}
120
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 6 body += "extern " + getHandleFunctionType(it->getName()) + " " + getHandleFunction(it->getName()) + ";\n";
121 }
122
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 3 body += "\n\n";
123
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 30 for(PVecFunction::iterator it(vecFunction.begin()); it != vecFunction.end(); ++it){
124
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 12 body += cpp_backendTableHeaderInline(*it);
125 }
126
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 3 body += "void " + getUpdateFunction(source.getName()) + "(void * handle);\n\n";
127
128
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 3 body += "#endif\n\n";
129 3 return body;
130 3 }
131
132 ///Get the mangled name of the given function name
133 /** @param libraryName : file name of the library to be used
134 * @param functionName : name of the function to be searched
135 * @return mangled name of the corresponding function
136 */
137 3 PString getMangleFunctionName(const PString & libraryName, const PString & functionName){
138
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 3 if(libraryName == ""){return functionName;}
139
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 3 PPath outputTmpFile(".mangledFunctionName.txt");
140
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 3 PString command("objdump --syms "+libraryName+" | grep \".text\" | sed -e \"s/ /\\n/g\" | grep "+functionName+" | head -n 1 > "+outputTmpFile);
141
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 3 if(system(command.c_str()) != 0){
142 ✗ return functionName;
143 }
144
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 3 PString fullFileContent(outputTmpFile.loadFileContent());
145
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 3 std::cerr << "getMangleFunctionName : full file content mangle function '"<<functionName<<"' : " << fullFileContent << std::endl;
146
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 3 PString mangleFunction(fullFileContent.eraseChar("\n\t "));
147
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 3 if(remove(outputTmpFile.c_str()) != 0){
148 ✗ std::cerr << "DPS::LibraryHandle::mangleFunctionName : cannot remove file '"<<outputTmpFile<<"'" << std::endl;
149 }
150
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 3 return mangleFunction;
151 3 }
152
153 ///Save the source of the given PSource
154 /** @param source : PSource to be used
155 * @param libName : filename to a binary library
156 * @return corresponding string
157 */
158 3 PString cpp_backendSource(PSource & source, const PString & libName){
159 3 PString body(cpp_licenceSaveStr());
160
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 3 body += "#include <stdio.h>\n";
161
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 3 body += "#include <stdlib.h>\n";
162
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 3 body += "#include <dlfcn.h>\n\n";
163
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 3 body += "#include \""+source.getName().eraseExtension()+".h\"\n\n";
164
165
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 3 PVecFunction & vecFunction = source.getVecFunction();
166
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 30 for(PVecFunction::iterator it(vecFunction.begin()); it != vecFunction.end(); ++it){
167
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 12 if(!repr_isFunction(*it)){continue;}
168
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 6 body += getHandleFunctionType(it->getName()) + " " + getHandleFunction(it->getName()) + ";\n";
169 }
170
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 3 body += "\n\n";
171
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 3 body += "///Update the all the function handles of the file\n";
172
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 3 body += "/**\t@param handle : pointer to loaded library\n";
173
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 3 body += "*/\n";
174
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 3 body += "void " + getUpdateFunction(source.getName()) + "(void * handle){\n";
175
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 30 for(PVecFunction::iterator it(vecFunction.begin()); it != vecFunction.end(); ++it){
176
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 12 if(!repr_isFunction(*it)){continue;}
177
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 3 PString mangleFunction(getMangleFunctionName(libName, it->getName()));
178
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 6 body += "\t"+getHandleFunction(it->getName())+" = ("+getHandleFunctionType(it->getName())+")(dlsym(handle, \""+mangleFunction+"\"));\n";
179 3 }
180
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 3 body += "}\n\n";
181 3 return body;
182 ✗ }
183
184 ///Save a vector of PSource in the output directory
185 /** @param source : source to be saved
186 * @param libName : filename to a binary library
187 * @param outputDir : output directory where to save PSource
188 * @return true on success, false otherwise
189 */
190 3 bool cpp_backend(PSource & source, const PString & libName, const PPath & outputDir){
191
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 3 PString headerSrc(cpp_backendHeader(source));
192
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 3 PString sourceSrc(cpp_backendSource(source, libName));
193
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 3 PPath baseFileName(source.getName().eraseExtension());
194
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 3 PPath outputHeaderFile(outputDir / baseFileName + PString(".h"));
195
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 3 PPath outputSourceFile(outputDir / baseFileName + PString(".cpp"));
196
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 3 if(!outputHeaderFile.saveFileContent(headerSrc)){
197 ✗ std::cerr << "cpp_backend : cannot save header file '"<<outputHeaderFile<<"'" << std::endl;
198 ✗ return false;
199 }
200
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 3 std::cout << "cpp_backend : create header file '"<<outputHeaderFile<<"'" <<std::endl;
201
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 3 if(!outputSourceFile.saveFileContent(sourceSrc)){
202 ✗ std::cerr << "cpp_backend : cannot save source file '"<<outputSourceFile<<"'" << std::endl;
203 ✗ return false;
204 }
205
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 3 std::cout << "cpp_backend : create source file '"<<outputSourceFile<<"'" <<std::endl;
206 3 return true;
207 3 }
208
209 ///Save a vector of PSource in the output directory
210 /** @param vecSource : vector of source
211 * @param libName : filename to a binary library
212 * @param outputDir : output directory where to save PSource
213 * @return true on success, false otherwise
214 */
215 3 bool cpp_backend(PVecSource & vecSource, const PString & libName, const PPath & outputDir){
216 3 bool b(true);
217
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 12 for(PVecSource::iterator it(vecSource.begin()); it != vecSource.end(); ++it){
218
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 3 b &= cpp_backend(*it, libName, outputDir);
219 }
220 3 return b;
221 }
222
223