Mercurial > cpython-lru_cache-weakref

comparison Python/pythonrun.c @ 14227:9f9f3280dc68 legacy-trunk

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implements PyOS_CheckStack for Windows and MSVC. this fixes a couple of potential stack overflows, including bug #110615. closes patch #101238
author Fredrik Lundh <fredrik@pythonware.com>
date Sun, 27 Aug 2000 19:15:31 +0000
parents 999671f69df4
children 20377f15b96a
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14226:11a26e963dc9 14227:9f9f3280dc68
1163 return 0; 1163 return 0;
1164 return (filename == NULL) || 1164 return (filename == NULL) ||
1165 (strcmp(filename, "<stdin>") == 0) || 1165 (strcmp(filename, "<stdin>") == 0) ||
1166 (strcmp(filename, "???") == 0); 1166 (strcmp(filename, "???") == 0);
1167 } 1167 }
1168
1169
1170 #if defined(USE_STACKCHECK)
1171 #if defined(WIN32) && defined(_MSC_VER)
1172
1173 /* Stack checking for Microsoft C */
1174
1175 #include <malloc.h>
1176 #include <excpt.h>
1177
1178 int
1179 PyOS_CheckStack()
1180 {
1181 __try {
1182 /* _alloca throws a stack overflow exception if there's
1183 not enough space left on the stack */
1184 _alloca(PYOS_STACK_MARGIN * sizeof(void*));
1185 return 0;
1186 } __except (EXCEPTION_EXECUTE_HANDLER) {
1187 /* just ignore all errors */
1188 }
1189 return 1;
1190 }
1191
1192 #endif /* WIN32 && _MSC_VER */
1193
1194 /* Alternate implementations can be added here... */
1195
1196 #endif /* USE_STACKCHECK */