1import config.base 2 3import os 4 5class Configure(config.base.Configure): 6 def __init__(self, framework): 7 config.base.Configure.__init__(self, framework) 8 self.headerPrefix = '' 9 self.substPrefix = '' 10 self.sizes = {} 11 self.c99_complex = 0 12 self.cxx_complex = 0 13 return 14 15 def setupHelp(self, help): 16 import nargs 17 help.addArgument('Visibility', '-with-visibility=<bool>', nargs.ArgBool(None, 1, 'Use compiler visibility flags to limit symbol visibility')) 18 return 19 20 def setupDependencies(self, framework): 21 config.base.Configure.setupDependencies(self, framework) 22 self.compilers = framework.require('config.compilers', self) 23 self.headers = framework.require('config.headers', self) 24 return 25 26 def check(self, typeName, defaultType = None, includes = []): 27 '''Checks that "typeName" exists, and if not defines it to "defaultType" if given''' 28 self.log.write('Checking for type: '+typeName+'\n') 29 include = ''' 30#include <sys/types.h> 31#include <stdlib.h> 32#include <stddef.h> 33%s 34 ''' % ('\n'.join(['#include<%s>' % inc for inc in includes])) 35 found = self.checkCompile(include,typeName+' a;') 36 if not found and defaultType: 37 self.addTypedef(defaultType, typeName) 38 else: 39 self.log.write(typeName+' found\n') 40 return found 41 42 def check_struct_sigaction(self): 43 '''Checks if "struct sigaction" exists in signal.h. This check is for C89 check.''' 44 if self.check('struct sigaction', includes = ['signal.h']): 45 self.addDefine('HAVE_STRUCT_SIGACTION',1) 46 return 47 48 def check__int64(self): 49 '''Checks if __int64 exists. This is primarily for windows.''' 50 if self.check('__int64'): 51 self.addDefine('HAVE___INT64',1) 52 return 53 54 def checkSizeTypes(self): 55 '''Checks for types associated with sizes, such as size_t.''' 56 self.check('size_t', 'int') 57 return 58 59 def checkIntegerTypes(self): 60 '''Checks for types associated with integers, such as int32_t.''' 61 self.check('int32_t', 'int') 62 return 63 64 def checkFileTypes(self): 65 '''Checks for types associated with files, such as mode_t, off_t, etc.''' 66 self.check('mode_t', 'int') 67 self.check('off_t', 'int') 68 return 69 70 def checkPID(self): 71 '''Checks for pid_t, and defines it if necessary''' 72 return self.check('pid_t', 'int') 73 74 def checkUID(self): 75 '''Checks for uid_t and gid_t, and defines them if necessary''' 76 if self.outputPreprocess('#include <sys/types.h>').find('uid_t') < 0: 77 self.addDefine('uid_t', 'int') 78 self.addDefine('gid_t', 'int') 79 return 80 81 def checkC99Complex(self): 82 '''Check for complex numbers in in C99 std 83 Note that since PETSc source code uses _Complex we test specifically for that, not complex''' 84 includes = '#include <complex.h>\n' 85 body = 'double _Complex x;\n x = I;\n' 86 if not self.checkCompile(includes, body): return # checkLink can succeed even if checkCompile fails 87 if self.checkLink(includes, body): 88 self.addDefine('HAVE_C99_COMPLEX', 1) 89 self.c99_complex = 1 90 return 91 92 def checkCxxComplex(self): 93 '''Check for complex numbers in namespace std''' 94 self.pushLanguage('C++') 95 includes = '#include <complex>\n' 96 body = 'std::complex<double> x;\n' 97 if self.checkLink(includes, body): 98 self.addDefine('HAVE_CXX_COMPLEX', 1) 99 self.cxx_complex = 1 100 self.popLanguage() 101 return 102 103 def checkConst(self): 104 '''Checks for working const, and if not found defines it to empty string''' 105 body = ''' 106 /* Ultrix mips cc rejects this. */ 107 typedef int charset[2]; const charset x; 108 /* SunOS 4.1.1 cc rejects this. */ 109 char const *const *ccp; 110 char **p; 111 /* NEC SVR4.0.2 mips cc rejects this. */ 112 struct point {int x, y;}; 113 static struct point const zero = {0,0}; 114 /* AIX XL C 1.02.0.0 rejects this. 115 It does not let you subtract one const X* pointer from another in an arm 116 of an if-expression whose if-part is not a constant expression */ 117 const char *g = "string"; 118 ccp = &g + (g ? g-g : 0); 119 /* HPUX 7.0 cc rejects these. */ 120 ++ccp; 121 p = (char**) ccp; 122 ccp = (char const *const *) p; 123 /* This section avoids unused variable warnings */ 124 if (zero.x); 125 if (x[0]); 126 { /* SCO 3.2v4 cc rejects this. */ 127 char *t; 128 char const *s = 0 ? (char *) 0 : (char const *) 0; 129 130 *t++ = 0; 131 if (*s); 132 } 133 { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ 134 int x[] = {25, 17}; 135 const int *foo = &x[0]; 136 ++foo; 137 } 138 { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ 139 typedef const int *iptr; 140 iptr p = 0; 141 ++p; 142 } 143 { /* AIX XL C 1.02.0.0 rejects this saying 144 "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ 145 struct s { int j; const int *ap[3]; }; 146 struct s *b; b->j = 5; 147 } 148 { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ 149 const int foo = 10; 150 151 /* Get rid of unused variable warning */ 152 if (foo); 153 } 154 ''' 155 if not self.checkCompile('', body): 156 self.addDefine('const', '') 157 return 158 159 def checkSizeof(self, typeName, typeSizes, otherInclude = None, lang='C', save=True, codeBegin=''): 160 '''Determines the size of type "typeName", and defines SIZEOF_"typeName" to be the size''' 161 self.log.write('Checking for size of type: ' + typeName + '\n') 162 typename = typeName.replace(' ', '-').replace('*', 'p') 163 includes = ''' 164#include <sys/types.h> 165#include <stdlib.h> 166#include <stdio.h> 167#include <stddef.h>''' 168 mpiFix = ''' 169#define MPICH_IGNORE_CXX_SEEK 170#define MPICH_SKIP_MPICXX 1 171#define OMPI_SKIP_MPICXX 1\n''' 172 if otherInclude: 173 if otherInclude == 'mpi.h': 174 includes += mpiFix 175 includes += '#include <' + otherInclude + '>\n' 176 size = None 177 checkName = typeName 178 if typeName == 'enum': 179 checkName = 'enum{ENUM_DUMMY}' 180 with self.Language(lang): 181 for s in typeSizes: 182 body = 'char assert_sizeof[(sizeof({0})=={1})*2-1];'.format(checkName, s) 183 if self.checkCompile(includes, body, codeBegin=codeBegin, codeEnd='\n'): 184 size = s 185 break 186 if size is None: 187 raise RuntimeError('Unable to determine size of {0} not found'.format(typeName)) 188 if save: 189 self.sizes[typename] = size 190 self.addDefine('SIZEOF_'+typename.replace('-', '_').upper(), str(size)) 191 return size 192 193 def checkVisibility(self): 194 if not self.argDB['with-shared-libraries']: 195 self.argDB['with-visibility'] = 0 196 self.log.write('Disabled visibility attributes due to static build') 197 elif self.argDB['with-visibility']: 198 self.pushLanguage('C') 199 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 200 self.addDefine('USE_VISIBILITY_C',1) 201 else: 202 self.log.write('Cannot use visibility attributes with C') 203 self.argDB['with-visibility'] = 0 204 self.popLanguage() 205 if hasattr(self.compilers, 'CXX'): 206 self.pushLanguage('C++') 207 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 208 self.addDefine('USE_VISIBILITY_CXX',1) 209 else: 210 self.log.write('Cannot use visibility attributes with C++') 211 self.popLanguage() 212 else: 213 self.log.write('User turned off visibility attributes') 214 215 def checkMaxPathLen(self): 216 import re 217 HASHLINESPACE = ' *(?:\n#.*\n *)*' 218 self.log.write('Determining PETSC_MAX_PATH_LEN\n') 219 include = '' 220 if self.headers.haveHeader('sys/param.h'): 221 include = (include + '\n#include <sys/param.h>') 222 if self.headers.haveHeader('sys/types.h'): 223 include = (include + '\n#include <sys/types.h>') 224 length = include + ''' 225#if defined(MAXPATHLEN) 226# define PETSC_MAX_PATH_LEN MAXPATHLEN 227#elif defined(MAX_PATH) 228# define PETSC_MAX_PATH_LEN MAX_PATH 229#elif defined(_MAX_PATH) 230# define PETSC_MAX_PATH_LEN _MAX_PATH 231#else 232# define PETSC_MAX_PATH_LEN 4096 233#endif 234#define xstr(s) str(s) 235#define str(s) #s 236char petsc_max_path_len[] = xstr(PETSC_MAX_PATH_LEN); 237''' 238 MaxPathLength = 'unknown' 239 if self.checkCompile(length): 240 buf = self.outputPreprocess(length) 241 try: 242 MaxPathLength = re.compile('\nchar petsc_max_path_len\s?\[\s?\] = '+HASHLINESPACE+'\"([0-9]+)\"'+HASHLINESPACE+';').search(buf).group(1) 243 except: 244 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 245 if MaxPathLength == 'unknown' or not MaxPathLength.isdigit(): 246 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 247 else: 248 self.addDefine('MAX_PATH_LEN',MaxPathLength) 249 250 251 def configure(self): 252 self.executeTest(self.check_struct_sigaction) 253 self.executeTest(self.check__int64) 254 self.executeTest(self.checkSizeTypes) 255 self.executeTest(self.checkFileTypes) 256 self.executeTest(self.checkIntegerTypes) 257 self.executeTest(self.checkPID) 258 self.executeTest(self.checkUID) 259 self.executeTest(self.checkC99Complex) 260 if hasattr(self.compilers, 'CXX'): 261 self.executeTest(self.checkCxxComplex) 262 self.executeTest(self.checkConst) 263 for t, sizes in {'void *': (8, 4), 264 'short': (2, 4, 8), 265 'int': (4, 8, 2), 266 'long': (8, 4), 267 'long long': (8,), 268 'enum': (4, 8), 269 'size_t': (8, 4)}.items(): 270 self.executeTest(self.checkSizeof, args=[t, sizes]) 271 if self.sizes['void-p'] == 8: 272 self.addDefine('USING_64BIT_PTR',1) 273 self.executeTest(self.checkVisibility) 274 self.executeTest(self.checkMaxPathLen) 275 return 276