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 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(void)x' 86 if not self.checkCompile(includes, body): return # checkLink can succeed even if checkCompile fails 87 if self.checkLink(includes, body): 88 # recheck with _GNU_SOURCE active (Issues with crayCC on aarch64) 89 includes = '#define _GNU_SOURCE\n#include <complex.h>\n' 90 if not self.checkCompile(includes, body): return 91 self.addDefine('HAVE_C99_COMPLEX', 1) 92 self.c99_complex = 1 93 return 94 95 def checkCxxComplex(self): 96 '''Check for complex numbers in namespace std''' 97 self.pushLanguage('C++') 98 includes = '#include <complex>\n' 99 body = 'std::complex<double> x;\n(void)x' 100 if self.checkLink(includes, body): 101 self.addDefine('HAVE_CXX_COMPLEX', 1) 102 self.cxx_complex = 1 103 self.popLanguage() 104 return 105 106 def checkSizeof(self, typeName, typeSizes, otherInclude = None, lang='C', save=True, codeBegin=''): 107 '''Determines the size of type "typeName", and defines SIZEOF_"typeName" to be the size''' 108 self.log.write('Checking for size of type: ' + typeName + '\n') 109 typename = typeName.replace(' ', '-').replace('*', 'p') 110 includes = ''' 111#include <sys/types.h> 112#include <stdlib.h> 113#include <stdio.h> 114#include <stddef.h>''' 115 mpiFix = ''' 116#define MPICH_IGNORE_CXX_SEEK 117#define MPICH_SKIP_MPICXX 1 118#define OMPI_SKIP_MPICXX 1\n''' 119 if otherInclude: 120 if otherInclude == 'mpi.h': 121 includes += mpiFix 122 includes += '#include <' + otherInclude + '>\n' 123 size = None 124 checkName = typeName 125 if typeName == 'enum': 126 checkName = 'enum{ENUM_DUMMY}' 127 with self.Language(lang): 128 for s in typeSizes: 129 body = 'char assert_sizeof[(sizeof({0})=={1})*2-1];'.format(checkName, s) 130 if self.checkCompile(includes, body, codeBegin=codeBegin, codeEnd='\n'): 131 size = s 132 break 133 if size is None: 134 raise RuntimeError('Unable to determine size of {0} not found'.format(typeName)) 135 if save: 136 self.sizes[typename] = size 137 self.addDefine('SIZEOF_'+typename.replace('-', '_').upper(), str(size)) 138 return size 139 140 def checkVisibility(self): 141 if not self.argDB['with-shared-libraries']: 142 self.argDB['with-visibility'] = 0 143 self.log.write('Disabled visibility attributes due to static build') 144 elif self.argDB['with-visibility']: 145 self.pushLanguage('C') 146 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 147 self.addDefine('USE_VISIBILITY_C',1) 148 else: 149 self.log.write('Cannot use visibility attributes with C') 150 self.argDB['with-visibility'] = 0 151 self.popLanguage() 152 if hasattr(self.compilers, 'CXX'): 153 self.pushLanguage('C++') 154 if self.checkCompile('','__attribute__((visibility ("default"))) int foo(void);'): 155 self.addDefine('USE_VISIBILITY_CXX',1) 156 else: 157 self.log.write('Cannot use visibility attributes with C++') 158 self.popLanguage() 159 else: 160 self.log.write('User turned off visibility attributes') 161 162 def checkMaxPathLen(self): 163 '''Sets PETSC_MAX_PATH_LEN depending on values available on the system''' 164 import re 165 HASHLINESPACE = ' *(?:\n#.*\n *)*' 166 self.log.write('Determining PETSC_MAX_PATH_LEN\n') 167 include = '' 168 if self.headers.haveHeader('sys/param.h'): 169 include = (include + '\n#include <sys/param.h>') 170 if self.headers.haveHeader('sys/types.h'): 171 include = (include + '\n#include <sys/types.h>') 172 length = include + ''' 173#if defined(MAXPATHLEN) 174# define PETSC_MAX_PATH_LEN MAXPATHLEN 175#elif defined(MAX_PATH) 176# define PETSC_MAX_PATH_LEN MAX_PATH 177#elif defined(_MAX_PATH) 178# define PETSC_MAX_PATH_LEN _MAX_PATH 179#else 180# define PETSC_MAX_PATH_LEN 4096 181#endif 182#define xstr(s) str(s) 183#define str(s) #s 184char petsc_max_path_len[] = xstr(PETSC_MAX_PATH_LEN); 185''' 186 MaxPathLength = 'unknown' 187 if self.checkCompile(length): 188 buf = self.outputPreprocess(length) 189 try: 190 MaxPathLength = re.compile('\nchar petsc_max_path_len\s?\[\s?\] = '+HASHLINESPACE+'\"([0-9]+)\"'+HASHLINESPACE+';').search(buf).group(1) 191 except: 192 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 193 if MaxPathLength == 'unknown' or not MaxPathLength.isdigit(): 194 raise RuntimeError('Unable to determine PETSC_MAX_PATH_LEN') 195 else: 196 self.addDefine('MAX_PATH_LEN',MaxPathLength) 197 198 199 def configure(self): 200 self.executeTest(self.check_struct_sigaction) 201 self.executeTest(self.check__int64) 202 self.executeTest(self.checkSizeTypes) 203 self.executeTest(self.checkFileTypes) 204 self.executeTest(self.checkIntegerTypes) 205 self.executeTest(self.checkPID) 206 self.executeTest(self.checkUID) 207 self.executeTest(self.checkC99Complex) 208 if hasattr(self.compilers, 'CXX'): 209 self.executeTest(self.checkCxxComplex) 210 for t, sizes in {'void *': (8, 4), 211 'short': (2, 4, 8), 212 'int': (4, 8, 2), 213 'long': (8, 4), 214 'long long': (8,), 215 'enum': (4, 8), 216 'size_t': (8, 4)}.items(): 217 self.executeTest(self.checkSizeof, args=[t, sizes]) 218 if self.sizes['void-p'] == 8: 219 self.addDefine('USING_64BIT_PTR',1) 220 self.executeTest(self.checkVisibility) 221 self.executeTest(self.checkMaxPathLen) 222 return 223