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1 | /* |
2 | * Author: Jeff Okamoto (okamoto@corp.hp.com) |
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3 | * Version: 2.1, 1995/1/25 |
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4 | */ |
5 | |
6 | #ifdef __hp9000s300 |
7 | #define magic hpux_magic |
8 | #define MAGIC HPUX_MAGIC |
9 | #endif |
10 | |
11 | #include <dl.h> |
12 | #ifdef __hp9000s300 |
13 | #undef magic |
14 | #undef MAGIC |
15 | #endif |
16 | |
17 | #include "EXTERN.h" |
18 | #include "perl.h" |
19 | #include "XSUB.h" |
20 | |
21 | |
22 | #include "dlutils.c" /* for SaveError() etc */ |
23 | |
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24 | static AV *dl_resolve_using = Nullav; |
25 | |
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26 | |
27 | static void |
28 | dl_private_init() |
29 | { |
30 | (void)dl_generic_private_init(); |
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31 | dl_resolve_using = perl_get_av("DynaLoader::dl_resolve_using", 0x4); |
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32 | } |
33 | |
34 | MODULE = DynaLoader PACKAGE = DynaLoader |
35 | |
36 | BOOT: |
37 | (void)dl_private_init(); |
38 | |
39 | |
40 | void * |
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41 | dl_load_file(filename, flags=0) |
42 | char * filename |
43 | int flags |
44 | PREINIT: |
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45 | shl_t obj = NULL; |
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46 | int i, max, bind_type; |
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47 | CODE: |
48 | DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s,%x):\n", filename,flags)); |
49 | if (flags & 0x01) |
50 | warn("Can't make loaded symbols global on this platform while loading %s",filename); |
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51 | if (dl_nonlazy) |
52 | bind_type = BIND_IMMEDIATE; |
53 | else |
54 | bind_type = BIND_DEFERRED; |
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55 | #ifdef DEBUGGING |
56 | if (dl_debug) |
57 | bind_type |= BIND_VERBOSE; |
58 | #endif /* DEBUGGING */ |
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59 | |
60 | max = AvFILL(dl_resolve_using); |
61 | for (i = 0; i <= max; i++) { |
62 | char *sym = SvPVX(*av_fetch(dl_resolve_using, i, 0)); |
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63 | DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s) (dependent)\n", sym)); |
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64 | obj = shl_load(sym, bind_type | BIND_NOSTART, 0L); |
65 | if (obj == NULL) { |
66 | goto end; |
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67 | } |
68 | } |
69 | |
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70 | DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s): ", filename)); |
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71 | obj = shl_load(filename, bind_type | BIND_NOSTART, 0L); |
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72 | |
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73 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), " libref=%x\n", obj)); |
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74 | end: |
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75 | ST(0) = sv_newmortal() ; |
76 | if (obj == NULL) |
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77 | SaveError("%s",Strerror(errno)); |
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78 | else |
79 | sv_setiv( ST(0), (IV)obj); |
80 | |
81 | |
82 | void * |
83 | dl_find_symbol(libhandle, symbolname) |
84 | void * libhandle |
85 | char * symbolname |
86 | CODE: |
87 | shl_t obj = (shl_t) libhandle; |
88 | void *symaddr = NULL; |
89 | int status; |
90 | #ifdef __hp9000s300 |
91 | char symbolname_buf[MAXPATHLEN]; |
92 | symbolname = dl_add_underscore(symbolname, symbolname_buf); |
93 | #endif |
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94 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "dl_find_symbol(handle=%x, symbol=%s)\n", |
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95 | libhandle, symbolname)); |
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96 | ST(0) = sv_newmortal() ; |
97 | errno = 0; |
98 | |
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99 | status = shl_findsym(&obj, symbolname, TYPE_PROCEDURE, &symaddr); |
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100 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), " symbolref(PROCEDURE) = %x\n", symaddr)); |
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101 | |
102 | if (status == -1 && errno == 0) { /* try TYPE_DATA instead */ |
103 | status = shl_findsym(&obj, symbolname, TYPE_DATA, &symaddr); |
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104 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), " symbolref(DATA) = %x\n", symaddr)); |
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105 | } |
106 | |
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107 | if (status == -1) { |
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108 | SaveError("%s",(errno) ? Strerror(errno) : "Symbol not found") ; |
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109 | } else { |
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110 | sv_setiv( ST(0), (IV)symaddr); |
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111 | } |
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112 | |
113 | |
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114 | void |
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115 | dl_undef_symbols() |
116 | PPCODE: |
117 | |
118 | |
119 | |
120 | # These functions should not need changing on any platform: |
121 | |
122 | void |
123 | dl_install_xsub(perl_name, symref, filename="$Package") |
124 | char * perl_name |
125 | void * symref |
126 | char * filename |
127 | CODE: |
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128 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "dl_install_xsub(name=%s, symref=%x)\n", |
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129 | perl_name, symref)); |
130 | ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename))); |
131 | |
132 | |
133 | char * |
134 | dl_error() |
135 | CODE: |
136 | RETVAL = LastError ; |
137 | OUTPUT: |
138 | RETVAL |
139 | |
140 | # end. |