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3eeba8d4f5
eval.c (s_expression, s_test, s_body, s_bindings, s_variable, s_clauses, s_formals): Variables now const. * eval.c (promsmob): Now const. * macros.c (macrosmob): Now const. * smob.c (scm_newsmob): Smobfuns argument now points to const. (freecell, flob, bigob): Now const. * dynl.c (scm_make_argv_from_stringlist, scm_coerce_rostring), error.c (scm_error, scm_syserror, scm_syserror_msg, scm_num_overflow, scm_out_of_range, scm_wrong_type_arg, scm_memory_error, scm_misc_error, scm_wta), macros.c (scm_make_synt), feature.c (scm_add_feature), filesys.c (scm_input_waiting_p), gc.c (scm_gc_start, scm_igc, scm_must_malloc, scm_must_realloc), gsubr.c (scm_make_gsubr), numbers.c (scm_num2dbl, scm_two_doubles, scm_num2long, scm_num2long_long, scm_num2ulong), options.c (scm_options), posix.c (scm_convert_exec_args, environ_list_to_c), procs.c (scm_make_subr_opt, scm_make_subr), ramap.c (scm_ramapc), read.c (scm_flush_ws), socket.c (scm_sock_fd_to_port, scm_fill_sockaddr, scm_addr_vector), stime.c (setzone, restorezone, bdtime2c), strop.c (scm_i_index), strports.c (scm_mkstrport), symbols.c (scm_intern_obarray_soft, scm_intern_obarray, scm_intern, scm_intern0, scm_sysintern0_no_module_lookup, scm_sysintern, scm_sysintern0, scm_symbol_value0), unif.c (scm_aind, scm_shap2ra): Argument indicating calling subr, error message text, reason for error, symbol name or feature name are now pointer to const. * snarf.h (SCM_PROC, SCM_PROC1): String variables are now const. * procs.c (scm_init_iprocs): iproc argument now points to const. * pairs.c (cxrs): Now const. * chars.h, error.h, feature.h, filesys.h, gc.h, gsubr.h, macros.h, numbers.h, options.h, procs.h, ramap.h, read.h, smob.h, strports.h, symbols.h, unif.h: Update variable declarations and function prototypes for above changes. * dynl.c, dynl-dld.c, dynl-dl.c, dynl-shl.c (sysdep_dynl_link, sysdep_dynl_unlink, sysdep_dynl_func): Arguments FNAME, SUBR, and SYMB now point to const.
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
/* dynl-dl.c - dynamic linking for dlopen/dlsym
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*
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* Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* "dynl.c" dynamically link&load object files.
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Author: Aubrey Jaffer
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Modified for libguile by Marius Vollmer */
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#include <dlfcn.h>
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#ifdef RTLD_LAZY /* Solaris 2. */
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# define DLOPEN_MODE RTLD_LAZY
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#else
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# define DLOPEN_MODE 1 /* Thats what it says in the man page. */
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#endif
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static void *
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sysdep_dynl_link (fname, subr)
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const char *fname;
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const char *subr;
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{
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void *handle = dlopen (fname, DLOPEN_MODE);
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if (NULL == handle)
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{
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SCM_ALLOW_INTS;
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scm_misc_error (subr, (char *)dlerror (), SCM_EOL);
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}
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return handle;
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}
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static void
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sysdep_dynl_unlink (handle, subr)
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void *handle;
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const char *subr;
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{
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if (dlclose (handle))
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{
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SCM_ALLOW_INTS;
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scm_misc_error (subr, (char *)dlerror (), SCM_EOL);
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}
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}
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static void *
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sysdep_dynl_func (symb, handle, subr)
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const char *symb;
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void *handle;
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const char *subr;
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{
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void *fptr;
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char *err;
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#if defined(USCORE) && !defined(DLSYM_ADDS_USCORE)
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char *usymb;
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#endif
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#if defined(USCORE) && !defined(DLSYM_ADDS_USCORE)
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usymb = (char *) malloc (strlen (symb) + 2);
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*usymb = '_';
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strcpy (usymb + 1, symb);
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fptr = dlsym (handle, usymb);
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free (usymb);
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#else
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fptr = dlsym (handle, symb);
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#endif
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err = (char *)dlerror ();
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if (!fptr)
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{
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SCM_ALLOW_INTS;
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scm_misc_error (subr, err? err : "symbol has NULL address", SCM_EOL);
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}
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return fptr;
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}
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static void
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sysdep_dynl_init ()
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{
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}
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