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;\n(void)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 checkC99Complex(self): 75 '''Check for complex numbers in C99 std 76 Note that since PETSc source code uses _Complex we test specifically for that, not complex''' 77 includes = '#include <complex.h>\n' 78 body = 'double _Complex x;\n x = I;\n(void)x' 79 if not self.checkCompile(includes, body): return # checkLink can succeed even if checkCompile fails 80 if self.checkLink(includes, body): 81 # recheck with _GNU_SOURCE active (Issues with crayCC on aarch64) 82 includes = '#define _GNU_SOURCE\n#include <complex.h>\n' 83 if not self.checkCompile(includes, body): return 84 self.addDefine('HAVE_C99_COMPLEX', 1) 85 self.c99_complex = 1 86 return 87 88 def checkCxxComplex(self): 89 '''Check for complex numbers in namespace std''' 90 self.pushLanguage('C++') 91 includes = '#include <complex>\n' 92 body = 'std::complex<double> x;\n(void)x' 93 if self.checkLink(includes, body): 94 self.addDefine('HAVE_CXX_COMPLEX', 1) 95 self.cxx_complex = 1 96 self.popLanguage() 97 return 98 99 def checkSizeof(self, typeName, typeSizes, otherInclude = None, lang='C', save=True, codeBegin=''): 100 '''Determines the size of type "typeName", and defines SIZEOF_"typeName" to be the size''' 101 self.log.write('Checking for size of type: ' + typeName + '\n') 102 typename = typeName.replace(' ', '-').replace('*', 'p') 103 includes = ''' 104#include <sys/types.h> 105#include <stdlib.h> 106#include <stdio.h> 107#include <stddef.h>\n''' 108 mpiFix = ''' 109#define MPICH_IGNORE_CXX_SEEK 110#define MPICH_SKIP_MPICXX 1 111#define OMPI_SKIP_MPICXX 1\n''' 112 if otherInclude: 113 if otherInclude == 'mpi.h': 114 includes += mpiFix 115 includes += '#include <' + otherInclude + '>\n' 116 size = None 117 checkName = typeName 118 if typeName == 'enum': 119 checkName = 'enum{ENUM_DUMMY}' 120 with self.Language(lang): 121 for s in typeSizes: 122 body = 'char assert_sizeof[(sizeof({0})=={1})*2-1];'.format(checkName, s) 123 if self.checkCompile(includes, body, codeBegin=codeBegin, codeEnd='\n'): 124 size = s 125 break 126 if size is None: 127 raise RuntimeError('Unable to determine size of {0} not found'.format(typeName)) 128 if save: 129 self.sizes[typename] = size 130 self.addDefine('SIZEOF_'+typename.replace('-', '_').upper(), str(size)) 131 return size 132 133 def checkVisibility(self): 134 if not self.argDB['with-shared-libraries']: 135 self.argDB['with-visibility'] = 0 136 self.log.write('Disabled visibility attributes due to static build') 137 elif self.argDB['with-visibility']: 138 self.pushLanguage('C') 139 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 140 self.addDefine('USE_VISIBILITY_C',1) 141 else: 142 self.log.write('Cannot use visibility attributes with C') 143 self.argDB['with-visibility'] = 0 144 self.popLanguage() 145 if hasattr(self.compilers, 'CXX'): 146 self.pushLanguage('C++') 147 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 148 self.addDefine('USE_VISIBILITY_CXX',1) 149 else: 150 self.log.write('Cannot use visibility attributes with C++') 151 self.popLanguage() 152 else: 153 self.log.write('User turned off visibility attributes') 154 155 def checkMaxPathLen(self): 156 '''Sets PETSC_MAX_PATH_LEN depending on values available on the system''' 157 import re 158 HASHLINESPACE = ' *(?:\n#.*\n *)*' 159 self.log.write('Determining PETSC_MAX_PATH_LEN\n') 160 include = '' 161 if self.headers.haveHeader('sys/param.h'): 162 include = (include + '\n#include <sys/param.h>') 163 if self.headers.haveHeader('sys/types.h'): 164 include = (include + '\n#include <sys/types.h>') 165 length = include + ''' 166#if defined(MAXPATHLEN) 167# define PETSC_MAX_PATH_LEN MAXPATHLEN 168#elif defined(MAX_PATH) 169# define PETSC_MAX_PATH_LEN MAX_PATH 170#elif defined(_MAX_PATH) 171# define PETSC_MAX_PATH_LEN _MAX_PATH 172#else 173# define PETSC_MAX_PATH_LEN 4096 174#endif 175#define xstr(s) str(s) 176#define str(s) #s 177char petsc_max_path_len[] = xstr(PETSC_MAX_PATH_LEN); 178''' 179 MaxPathLength = 'unknown' 180 if self.checkCompile(length): 181 buf = self.outputPreprocess(length) 182 try: 183 MaxPathLength = re.compile('\n'+r'char petsc_max_path_len\s?\[\s?\] = '+HASHLINESPACE+'\"([0-9]+)\"'+HASHLINESPACE+';').search(buf).group(1) 184 except: 185 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 186 if MaxPathLength == 'unknown' or not MaxPathLength.isdigit(): 187 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 188 else: 189 self.addDefine('MAX_PATH_LEN',MaxPathLength) 190 191 def configure(self): 192 self.executeTest(self.check_struct_sigaction) 193 self.executeTest(self.check__int64) 194 self.executeTest(self.checkSizeTypes) 195 self.executeTest(self.checkFileTypes) 196 self.executeTest(self.checkIntegerTypes) 197 self.executeTest(self.checkPID) 198 self.executeTest(self.checkC99Complex) 199 if hasattr(self.compilers, 'CXX'): 200 self.executeTest(self.checkCxxComplex) 201 for t, sizes in {'void *': (8, 4), 202 'int': (4, 8, 2), 203 'long': (8, 4), 204 'long long': (8,), 205 'size_t': (8, 4)}.items(): 206 self.executeTest(self.checkSizeof, args=[t, sizes]) 207 if self.sizes['void-p'] == 8: 208 self.addDefine('USING_64BIT_PTR',1) 209 self.executeTest(self.checkVisibility) 210 self.executeTest(self.checkMaxPathLen) 211 return 212