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guile/libguile/dynl-dld.c
Jim Blandy 3eeba8d4f5 * chars.c (scm_lowers, scm_uppers, scm_charnames, scm_charnums),
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.
1999-02-06 12:31:04 +00:00

131 lines
3.7 KiB
C

/* dynl-dld.c - dynamic linking with dld
*
* Copyright (C) 1990-1997 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
/* "dynl.c" dynamically link&load object files.
Author: Aubrey Jaffer
Modified for libguile by Marius Vollmer */
#include "dld.h"
static void listundef SCM_P ((void));
static void
listundefs ()
{
int i;
char **undefs = dld_list_undefined_sym();
puts(" undefs:");
for(i = dld_undefined_sym_count;i--;) {
putc('"', stdout);
fputs(undefs[i], stdout);
puts("\"");
}
free(undefs);
}
static void *
sysdep_dynl_link (fname, subr)
const char *fname;
const char *subr;
{
int status;
status = dld_link (fname);
if (status)
{
SCM_ALLOW_INTS;
scm_misc_error (subr, dld_strerror (status), SCM_EOL);
}
return fname;
}
static void
sysdep_dynl_unlink (handle, subr)
void *handle;
const char *subr;
{
int status;
status = dld_unlink_by_file ((char *)fname, 1);
if (status)
{
SCM_ALLOW_INTS;
scm_misc_error (s_dynamic_unlink, dld_strerror (status), SCM_EOL);
}
}
static void *
sysdep_dynl_func (symb, handle, subr)
const char *symb;
void *handle;
const char *subr;
{
void *func;
func = (void *) dld_get_func (func);
if (func == 0)
scm_misc_error (subr, dld_strerror (dld_errno), SCM_EOL);
if (!dld_function_executable_p (func)) {
listundefs ();
SCM_ALLOW_INTS;
scm_misc_error (subr, "unresolved symbols remain", SCM_EOL);
}
return func;
}
static void
sysdep_dynl_init ()
{
#ifndef RTL
if (!execpath)
execpath = dld_find_executable (SCM_CHARS (SCM_CAR (progargs)));
if (dld_init (SCM_CHARS (SCM_CAR (progargs)))) {
dld_perror("DLD");
return;
}
#endif
#ifdef DLD_DYNCM /* XXX - what's this? */
add_feature("dld:dyncm");
#endif
}