Mercurial > cpython-lru_cache-weakref

annotate Python/dynload_mac.c @ 16862:77a5470299db legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add warning/error handlin for problematic nested scopes cases as described in PEP 227. symtable_check_unoptimized() warns about import * and exec with "in" when it is used in a function that contains a nested function with free variables. Warnings are issued unless nested scopes are in effect, in which case these are SyntaxErrors. symtable_check_shadow() warns about assignments in a function scope that shadow free variables defined in a nested scope. This will always generate a warning -- and will behave differently with nested scopes than without. Restore full checking for free vars in children, even when nested scopes are not enabled. This is needed to support warnings for shadowing. Change symtable_warn() to return an int-- the return value of PyErr_WarnExplicit. Sundry cleanup: Remove commented out code. Break long lines.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Wed, 28 Feb 2001 22:54:51 +0000
parents 64fab0047a14
children 379fc66f4c96
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
1
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
2 /* Support for dynamic loading of extension modules */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
3
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
4 #include "Python.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
5 #include "importdl.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
6
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
7 #include <Aliases.h>
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
8 #include <CodeFragments.h>
12476
3500c4350f62 Jack Jansen: The new version of the GUSI i/o library on the Macintosh
Guido van Rossum <guido@python.org>
parents: 11756
diff changeset
9 #ifdef USE_GUSI1
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
10 #include "TFileSpec.h" /* for Path2FSSpec() */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
11 #endif
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
12 #include <Files.h>
15537
50358d64dc43 Use c2pstr() in stead of Pstring() to convert C-strings to
Jack Jansen <jack.jansen@cwi.nl>
parents: 14375
diff changeset
13 #include <TextUtils.h>
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
14 #include "macdefs.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
15 #include "macglue.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
16
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
17
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
18 const struct filedescr _PyImport_DynLoadFiletab[] = {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
19 {".slb", "rb", C_EXTENSION},
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
20 #ifdef __CFM68K__
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
21 {".CFM68K.slb", "rb", C_EXTENSION},
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
22 #else
16055
64fab0047a14 Use #if TARGET_API_MAC_CARBON to determine carbon/classic macos, not #ifdef.
Jack Jansen <jack.jansen@cwi.nl>
parents: 15879
diff changeset
23 #if TARGET_API_MAC_CARBON
15879
90992c82d46e Added a separate extension (.carbon.slb) for Carbon dynamic modules.
Jack Jansen <jack.jansen@cwi.nl>
parents: 15537
diff changeset
24 {".carbon.slb", "rb", C_EXTENSION},
90992c82d46e Added a separate extension (.carbon.slb) for Carbon dynamic modules.
Jack Jansen <jack.jansen@cwi.nl>
parents: 15537
diff changeset
25 #else
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
26 {".ppc.slb", "rb", C_EXTENSION},
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
27 #endif
15879
90992c82d46e Added a separate extension (.carbon.slb) for Carbon dynamic modules.
Jack Jansen <jack.jansen@cwi.nl>
parents: 15537
diff changeset
28 #endif
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
29 {0, 0}
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
30 };
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
31
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
32
11618
528559a0b2f2 Cleanup patches from Greg Stein:
Guido van Rossum <guido@python.org>
parents: 11599
diff changeset
33 dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
34 const char *pathname, FILE *fp)
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
35 {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
36 dl_funcptr p;
11618
528559a0b2f2 Cleanup patches from Greg Stein:
Guido van Rossum <guido@python.org>
parents: 11599
diff changeset
37 char funcname[258];
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
38
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
39 /*
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
40 ** Dynamic loading of CFM shared libraries on the Mac. The
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
41 ** code has become more convoluted than it was, because we
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
42 ** want to be able to put multiple modules in a single
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
43 ** file. For this reason, we have to determine the fragment
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
44 ** name, and we cannot use the library entry point but we have
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
45 ** to locate the correct init routine "by hand".
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
46 */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
47 FSSpec libspec;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
48 CFragConnectionID connID;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
49 Ptr mainAddr;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
50 Str255 errMessage;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
51 OSErr err;
12476
3500c4350f62 Jack Jansen: The new version of the GUSI i/o library on the Macintosh
Guido van Rossum <guido@python.org>
parents: 11756
diff changeset
52 #ifndef USE_GUSI1
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
53 Boolean isfolder, didsomething;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
54 #endif
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
55 char buf[512];
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
56 Str63 fragname;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
57 Ptr symAddr;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
58 CFragSymbolClass class;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
59
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
60 /* First resolve any aliases to find the real file */
12476
3500c4350f62 Jack Jansen: The new version of the GUSI i/o library on the Macintosh
Guido van Rossum <guido@python.org>
parents: 11756
diff changeset
61 #ifdef USE_GUSI1
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
62 err = Path2FSSpec(pathname, &libspec);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
63 #else
15537
50358d64dc43 Use c2pstr() in stead of Pstring() to convert C-strings to
Jack Jansen <jack.jansen@cwi.nl>
parents: 14375
diff changeset
64 c2pstrcpy((unsigned char *)buf, pathname);
50358d64dc43 Use c2pstr() in stead of Pstring() to convert C-strings to
Jack Jansen <jack.jansen@cwi.nl>
parents: 14375
diff changeset
65 (void)FSMakeFSSpec(0, 0, (unsigned char *)buf, &libspec);
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
66 err = ResolveAliasFile(&libspec, 1, &isfolder, &didsomething);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
67 #endif
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
68 if ( err ) {
15537
50358d64dc43 Use c2pstr() in stead of Pstring() to convert C-strings to
Jack Jansen <jack.jansen@cwi.nl>
parents: 14375
diff changeset
69 sprintf(buf, "%.200s: %.200s", pathname, PyMac_StrError(err));
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
70 PyErr_SetString(PyExc_ImportError, buf);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
71 return NULL;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
72 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
73 /* Next, determine the fragment name,
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
74 by stripping '.slb' and 'module' */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
75 memcpy(fragname+1, libspec.name+1, libspec.name[0]);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
76 fragname[0] = libspec.name[0];
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
77 if( strncmp((char *)(fragname+1+fragname[0]-4),
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
78 ".slb", 4) == 0 )
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
79 fragname[0] -= 4;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
80 if ( strncmp((char *)(fragname+1+fragname[0]-6),
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
81 "module", 6) == 0 )
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
82 fragname[0] -= 6;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
83 /* Load the fragment
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
84 (or return the connID if it is already loaded */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
85 err = GetDiskFragment(&libspec, 0, 0, fragname,
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
86 kLoadCFrag, &connID, &mainAddr,
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
87 errMessage);
11756
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
88 if ( err == cfragImportTooOldErr || err == cfragImportTooNewErr ) {
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
89 /*
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
90 ** Special-case code: if PythonCore is too old or too new this means
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
91 ** the dynamic module was meant for a different Python.
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
92 */
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
93 if (errMessage[0] == 10 && strncmp((char *)errMessage+1, "PythonCore", 10) == 0 ) {
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
94 sprintf(buf, "Dynamic module was built for %s version of MacPython",
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
95 (err == cfragImportTooOldErr ? "a newer" : "an older"));
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
96 PyErr_SetString(PyExc_ImportError, buf);
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
97 return NULL;
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
98 }
6367d829f36b Patch by Jack Jansen:
Guido van Rossum <guido@python.org>
parents: 11618
diff changeset
99 }
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
100 if ( err ) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
101 sprintf(buf, "%.*s: %.200s",
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
102 errMessage[0], errMessage+1,
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
103 PyMac_StrError(err));
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
104 PyErr_SetString(PyExc_ImportError, buf);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
105 return NULL;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
106 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
107 /* Locate the address of the correct init function */
11618
528559a0b2f2 Cleanup patches from Greg Stein:
Guido van Rossum <guido@python.org>
parents: 11599
diff changeset
108 sprintf(funcname, "init%.200s", shortname);
11599
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
109 err = FindSymbol(connID, Pstring(funcname), &symAddr, &class);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
110 if ( err ) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
111 sprintf(buf, "%s: %.200s",
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
112 funcname, PyMac_StrError(err));
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
113 PyErr_SetString(PyExc_ImportError, buf);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
114 return NULL;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
115 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
116 p = (dl_funcptr)symAddr;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
117
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
118 return p;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one
Guido van Rossum <guido@python.org>
parents:
diff changeset
119 }