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1 | /* dynl-shl.c - dynamic linking with shl_load (HP-UX) |
2 | * | |
96599e6a | 3 | * Copyright (C) 1990-1997 Free Software Foundation, Inc. |
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4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2, or (at your option) | |
8 | * any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this software; see the file COPYING. If not, write to | |
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17 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
18 | * Boston, MA 02111-1307 USA | |
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19 | * |
20 | * As a special exception, the Free Software Foundation gives permission | |
21 | * for additional uses of the text contained in its release of GUILE. | |
22 | * | |
23 | * The exception is that, if you link the GUILE library with other files | |
24 | * to produce an executable, this does not by itself cause the | |
25 | * resulting executable to be covered by the GNU General Public License. | |
26 | * Your use of that executable is in no way restricted on account of | |
27 | * linking the GUILE library code into it. | |
28 | * | |
29 | * This exception does not however invalidate any other reasons why | |
30 | * the executable file might be covered by the GNU General Public License. | |
31 | * | |
32 | * This exception applies only to the code released by the | |
33 | * Free Software Foundation under the name GUILE. If you copy | |
34 | * code from other Free Software Foundation releases into a copy of | |
35 | * GUILE, as the General Public License permits, the exception does | |
36 | * not apply to the code that you add in this way. To avoid misleading | |
37 | * anyone as to the status of such modified files, you must delete | |
38 | * this exception notice from them. | |
39 | * | |
40 | * If you write modifications of your own for GUILE, it is your choice | |
41 | * whether to permit this exception to apply to your modifications. | |
82892bed | 42 | * If you do not wish that, delete this exception notice. */ |
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43 | |
44 | /* "dynl.c" dynamically link&load object files. | |
45 | Author: Aubrey Jaffer | |
46 | Modified for libguile by Marius Vollmer */ | |
47 | ||
1edae076 | 48 | #include "dl.h" |
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49 | #include <stdio.h> |
50 | #include <string.h> | |
1edae076 | 51 | |
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52 | static void * |
53 | sysdep_dynl_link (fname, subr) | |
54 | char *fname; | |
55 | char *subr; | |
1edae076 | 56 | { |
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57 | shl_t shl; |
58 | ||
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59 | /* Probably too much BIND_* flags */ |
60 | shl = shl_load (fname, BIND_IMMEDIATE || BIND_FIRST || | |
61 | BIND_TOGETHER || | |
62 | BIND_VERBOSE || DYNAMIC_PATH, 0L); | |
1edae076 | 63 | if (NULL==shl) |
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64 | { |
65 | SCM_ALLOW_INTS; | |
80bc7890 | 66 | scm_misc_error (subr, "dynamic linking failed", SCM_EOL); |
419e9e11 | 67 | } |
80bc7890 | 68 | return shl; |
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69 | } |
70 | ||
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71 | static void |
72 | sysdep_dynl_unlink (handle, subr) | |
73 | void *handle; | |
74 | char *subr; | |
1edae076 | 75 | { |
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76 | if (shl_unload ((shl_t) handle)) |
77 | { | |
78 | SCM_ALLOW_INTS; | |
79 | scm_misc_error (subr, "dynamic unlinking failed", SCM_EOL); | |
80 | } | |
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81 | } |
82 | ||
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83 | static void * |
84 | sysdep_dynl_func (symb, handle, subr) | |
85 | char *symb; | |
86 | void *handle; | |
87 | char *subr; | |
1edae076 | 88 | { |
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89 | int status, i; |
90 | struct shl_symbol *sym; | |
419e9e11 | 91 | |
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92 | status = shl_getsymbols((shl_t) handle, TYPE_PROCEDURE, |
93 | EXPORT_SYMBOLS, malloc, &sym); | |
419e9e11 | 94 | |
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95 | for (i=0; i<status; ++i) { |
96 | if (strcmp(symb, sym[i].name) == 0) return sym[i].value; | |
97 | } | |
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98 | |
99 | SCM_ALLOW_INTS; | |
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100 | scm_misc_error (subr, "undefined function", |
101 | scm_cons (scm_makfrom0str (symb), SCM_EOL)); | |
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102 | } |
103 | ||
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104 | static void |
105 | sysdep_dynl_init () | |
1edae076 | 106 | { |
1edae076 | 107 | } |