1 /* This file is part of the program psim.
3 Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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 of the License, or
8 (at your option) any later version.
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.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 #include "emul_generic.h"
30 #include "emul_netbsd.h"
31 #include "emul_unix.h"
32 #include "emul_chirp.h"
33 #include "emul_bugapi.h"
35 static const os_emul *(os_emulations[]) = {
47 os_emul_create(const char *file_name,
50 const char *emulation_name = NULL;
52 os_emul *chosen_emulation = NULL;
54 bfd_init(); /* would never hurt */
57 image = bfd_openr(file_name, NULL);
59 bfd_perror(file_name);
60 error("nothing loaded\n");
63 /* check it is an executable */
64 if (!bfd_check_format(image, bfd_object)) {
66 ("FIXME - should check more than just bfd_check_format\n"));
68 ("%s not an executable, assumeing a device file\n", file_name));
73 /* if a device file, load that before trying the emulations on */
75 psim_merge_device_file(root, file_name);
78 /* see if the device tree already specifies the required emulation */
79 if (tree_find_property(root, "/openprom/options/os-emul") != NULL)
81 tree_find_string_property(root, "/openprom/options/os-emul");
83 emulation_name = NULL;
85 /* go through each emulation to see if they reconize it. FIXME -
86 should have some sort of imported table from a separate file */
88 os_emul_data *emul_data;
89 const os_emul **possible_emulation;
90 chosen_emulation = NULL;
91 for (possible_emulation = os_emulations, emul_data = NULL;
92 *possible_emulation != NULL && emul_data == NULL;
93 possible_emulation++) {
94 emul_data = (*possible_emulation)->create(root,
97 if (emul_data != NULL) {
98 chosen_emulation = ZALLOC(os_emul);
99 *chosen_emulation = **possible_emulation;
100 chosen_emulation->data = emul_data;
108 return chosen_emulation;
113 os_emul_init(os_emul *emulation,
116 if (emulation != (os_emul*)0)
117 emulation->init(emulation->data, nr_cpus);
122 os_emul_system_call(cpu *processor,
125 os_emul *emulation = cpu_os_emulation(processor);
126 if (emulation != (os_emul*)0 && emulation->system_call != 0)
127 emulation->system_call(processor, cia, emulation->data);
129 error("System call emulation not available\n");
134 os_emul_instruction_call(cpu *processor,
138 os_emul *emulation = cpu_os_emulation(processor);
139 if (emulation != (os_emul*)0 && emulation->instruction_call != 0)
140 return emulation->instruction_call(processor, cia, ra, emulation->data);
146 #endif /* _OS_EMUL_C_ */