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annotate Python/dynload_hpux.c @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents fd25030223b0
children
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78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
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1
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
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2 /* Support for dynamic loading of extension modules */
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3
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4 #include "dl.h"
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5 #include <errno.h>
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6
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7 #include "Python.h"
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8 #include "importdl.h"
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9
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10 #if defined(__hp9000s300)
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11 #define FUNCNAME_PATTERN "_init%.200s"
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12 #else
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13 #define FUNCNAME_PATTERN "init%.200s"
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14 #endif
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16 const struct filedescr _PyImport_DynLoadFiletab[] = {
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17 {SHLIB_EXT, "rb", C_EXTENSION},
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18 {"module"SHLIB_EXT, "rb", C_EXTENSION},
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19 {0, 0}
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20 };
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21
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22 dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
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23 const char *pathname, FILE *fp)
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24 {
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25 dl_funcptr p;
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26 shl_t lib;
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27 int flags;
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28 char funcname[258];
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29
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30 flags = BIND_FIRST | BIND_DEFERRED;
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31 if (Py_VerboseFlag) {
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32 flags = BIND_FIRST | BIND_IMMEDIATE |
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33 BIND_NONFATAL | BIND_VERBOSE;
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34 printf("shl_load %s\n",pathname);
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35 }
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36 lib = shl_load(pathname, flags, 0);
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37 /* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
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38 if (lib == NULL) {
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39 char buf[256];
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40 if (Py_VerboseFlag)
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41 perror(pathname);
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42 PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
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43 pathname);
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44 PyErr_SetString(PyExc_ImportError, buf);
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45 return NULL;
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46 }
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47 PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, shortname);
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48 if (Py_VerboseFlag)
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49 printf("shl_findsym %s\n", funcname);
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50 if (shl_findsym(&lib, funcname, TYPE_UNDEFINED, (void *) &p) == -1) {
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51 shl_unload(lib);
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52 p = NULL;
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53 }
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54 if (p == NULL && Py_VerboseFlag)
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55 perror(funcname);
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56
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57 return p;
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58 }