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dpavlin |
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/* |
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* Copyright (C) 2003-2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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dpavlin |
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* $Id: emul.c,v 1.235 2005/10/26 14:37:02 debug Exp $ |
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dpavlin |
2 |
* |
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* Emulation startup and misc. routines. |
31 |
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*/ |
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#include <signal.h> |
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#include <stdio.h> |
35 |
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#include <stdlib.h> |
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#include <limits.h> |
37 |
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#include <stdarg.h> |
38 |
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#include <string.h> |
39 |
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#include <unistd.h> |
40 |
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41 |
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#include "arcbios.h" |
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#include "bintrans.h" |
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#include "cpu.h" |
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#include "emul.h" |
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#include "console.h" |
46 |
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#include "debugger.h" |
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#include "device.h" |
48 |
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#include "diskimage.h" |
49 |
dpavlin |
10 |
#include "exec_elf.h" |
50 |
dpavlin |
2 |
#include "machine.h" |
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#include "memory.h" |
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#include "mips_cpu_types.h" |
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#include "misc.h" |
54 |
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#include "net.h" |
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#include "sgi_arcbios.h" |
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#include "x11.h" |
57 |
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58 |
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59 |
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extern int force_debugger_at_exit; |
60 |
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61 |
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extern int extra_argc; |
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extern char **extra_argv; |
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64 |
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extern int verbose; |
65 |
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extern int quiet_mode; |
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67 |
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extern struct emul *debugger_emul; |
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extern struct diskimage *diskimages[]; |
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dpavlin |
6 |
static char *diskimage_types[] = DISKIMAGE_TYPES; |
71 |
dpavlin |
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72 |
dpavlin |
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|
73 |
dpavlin |
2 |
/* |
74 |
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* add_dump_points(): |
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* |
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* Take the strings breakpoint_string[] and convert to addresses |
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* (and store them in breakpoint_addr[]). |
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* |
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* TODO: This function should be moved elsewhere. |
80 |
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*/ |
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static void add_dump_points(struct machine *m) |
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{ |
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int i; |
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int string_flag; |
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uint64_t dp; |
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for (i=0; i<m->n_breakpoints; i++) { |
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string_flag = 0; |
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dp = strtoull(m->breakpoint_string[i], NULL, 0); |
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/* |
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* If conversion resulted in 0, then perhaps it is a |
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* symbol: |
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*/ |
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if (dp == 0) { |
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uint64_t addr; |
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int res = get_symbol_addr(&m->symbol_context, |
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m->breakpoint_string[i], &addr); |
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if (!res) |
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fprintf(stderr, |
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"WARNING! Breakpoint '%s' could not be" |
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" parsed\n", |
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m->breakpoint_string[i]); |
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else { |
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dp = addr; |
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string_flag = 1; |
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} |
108 |
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} |
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/* |
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* TODO: It would be nice if things like symbolname+0x1234 |
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* were automatically converted into the correct address. |
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*/ |
114 |
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if ((dp >> 32) == 0 && ((dp >> 31) & 1)) |
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dp |= 0xffffffff00000000ULL; |
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m->breakpoint_addr[i] = dp; |
118 |
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debug("breakpoint %i: 0x%016llx", i, (long long)dp); |
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if (string_flag) |
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debug(" (%s)", m->breakpoint_string[i]); |
122 |
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debug("\n"); |
123 |
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} |
124 |
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} |
125 |
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126 |
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127 |
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/* |
128 |
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* fix_console(): |
129 |
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*/ |
130 |
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static void fix_console(void) |
131 |
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{ |
132 |
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console_deinit(); |
133 |
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} |
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135 |
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136 |
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/* |
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dpavlin |
6 |
* iso_load_bootblock(): |
138 |
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* |
139 |
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* Try to load a kernel from an ISO 9660 disk image. iso_type is 1 for |
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* "CD001" (standard), 2 for "CDW01" (ECMA), and 3 for "CDROM" (Sierra). |
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* |
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* TODO: This function uses too many magic offsets and so on; it should be |
143 |
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* cleaned up some day. |
144 |
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* |
145 |
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* Returns 1 on success, 0 on failure. |
146 |
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*/ |
147 |
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static int iso_load_bootblock(struct machine *m, struct cpu *cpu, |
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int disk_id, int disk_type, int iso_type, unsigned char *buf, |
149 |
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int *n_loadp, char ***load_namesp) |
150 |
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{ |
151 |
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char str[35]; |
152 |
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int filenr, i, ofs, dirlen, res = 0, res2, iadd = 4; |
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int found_dir; |
154 |
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uint64_t dirofs; |
155 |
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uint64_t fileofs, filelen; |
156 |
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unsigned char *dirbuf = NULL, *dp; |
157 |
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unsigned char *match_entry = NULL; |
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char *p, *filename_orig; |
159 |
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char *filename = strdup(cpu->machine->boot_kernel_filename); |
160 |
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unsigned char *filebuf = NULL; |
161 |
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char *tmpfilename = NULL; |
162 |
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char **new_array; |
163 |
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int tmpfile_handle; |
164 |
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165 |
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if (filename == NULL) { |
166 |
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fatal("out of memory\n"); |
167 |
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exit(1); |
168 |
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} |
169 |
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filename_orig = filename; |
170 |
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171 |
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debug("ISO9660 boot:\n"); |
172 |
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debug_indentation(iadd); |
173 |
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174 |
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/* Volume ID: */ |
175 |
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ofs = iso_type == 3? 48 : 40; |
176 |
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memcpy(str, buf + ofs, sizeof(str)); |
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str[32] = '\0'; i = 31; |
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while (i >= 0 && str[i]==' ') |
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str[i--] = '\0'; |
180 |
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if (str[0]) |
181 |
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debug("\"%s\"", str); |
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else { |
183 |
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/* System ID: */ |
184 |
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ofs = iso_type == 3? 16 : 8; |
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memcpy(str, buf + ofs, sizeof(str)); |
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str[32] = '\0'; i = 31; |
187 |
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while (i >= 0 && str[i]==' ') |
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str[i--] = '\0'; |
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if (str[0]) |
190 |
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debug("\"%s\"", str); |
191 |
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else |
192 |
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debug("(no ID)"); |
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} |
194 |
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195 |
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debug(":%s\n", filename); |
196 |
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197 |
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198 |
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/* |
199 |
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* Traverse the directory structure to find the kernel. |
200 |
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*/ |
201 |
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202 |
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dirlen = buf[0x84] + 256*buf[0x85] + 65536*buf[0x86]; |
203 |
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if (dirlen != buf[0x8b] + 256*buf[0x8a] + 65536*buf[0x89]) |
204 |
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fatal("WARNING: Root directory length mismatch?\n"); |
205 |
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206 |
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dirofs = (int64_t)(buf[0x8c] + (buf[0x8d] << 8) + (buf[0x8e] << 16) + |
207 |
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(buf[0x8f] << 24)) * 2048; |
208 |
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209 |
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/* debug("root = %i bytes at 0x%llx\n", dirlen, (long long)dirofs); */ |
210 |
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211 |
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dirbuf = malloc(dirlen); |
212 |
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if (dirbuf == NULL) { |
213 |
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fatal("out of memory in iso_load_bootblock()\n"); |
214 |
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exit(1); |
215 |
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} |
216 |
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217 |
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res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, dirbuf, |
218 |
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dirlen); |
219 |
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if (!res2) { |
220 |
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fatal("Couldn't read the disk image. Aborting.\n"); |
221 |
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goto ret; |
222 |
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} |
223 |
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224 |
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found_dir = 1; /* Assume root dir */ |
225 |
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dp = dirbuf; filenr = 1; |
226 |
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p = NULL; |
227 |
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while (dp < dirbuf + dirlen) { |
228 |
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int i, nlen = dp[0]; |
229 |
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int x = dp[2] + (dp[3] << 8) + (dp[4] << 16) + (dp[5] << 24); |
230 |
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int y = dp[6] + (dp[7] << 8); |
231 |
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char direntry[65]; |
232 |
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233 |
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dp += 8; |
234 |
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235 |
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/* |
236 |
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* As long as there is an \ or / in the filename, then we |
237 |
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* have not yet found the directory. |
238 |
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*/ |
239 |
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p = strchr(filename, '/'); |
240 |
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if (p == NULL) |
241 |
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p = strchr(filename, '\\'); |
242 |
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243 |
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/* debug("%i%s: %i, %i, \"", filenr, filenr == found_dir? |
244 |
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" [CURRENT]" : "", x, y); */ |
245 |
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for (i=0; i<nlen && i<sizeof(direntry)-1; i++) |
246 |
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if (dp[i]) { |
247 |
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direntry[i] = dp[i]; |
248 |
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/* debug("%c", dp[i]); */ |
249 |
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} else |
250 |
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break; |
251 |
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/* debug("\"\n"); */ |
252 |
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direntry[i] = '\0'; |
253 |
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254 |
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/* A directory name match? */ |
255 |
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if (p != NULL && strncasecmp(filename, direntry, nlen) == 0 |
256 |
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&& nlen == (size_t)p - (size_t)filename && found_dir == y) { |
257 |
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found_dir = filenr; |
258 |
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filename = p+1; |
259 |
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dirofs = 2048 * (int64_t)x; |
260 |
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} |
261 |
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262 |
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dp += nlen; |
263 |
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264 |
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/* 16-bit aligned lenght: */ |
265 |
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if (nlen & 1) |
266 |
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dp ++; |
267 |
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268 |
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filenr ++; |
269 |
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} |
270 |
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271 |
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p = strchr(filename, '/'); |
272 |
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if (p == NULL) |
273 |
|
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p = strchr(filename, '\\'); |
274 |
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|
275 |
|
|
if (p != NULL) { |
276 |
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char *blah = filename_orig; |
277 |
|
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|
278 |
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fatal("could not find '%s' in /", filename); |
279 |
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|
280 |
|
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/* Print the first part of the filename: */ |
281 |
|
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while (blah != filename) |
282 |
|
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fatal("%c", *blah++); |
283 |
|
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|
284 |
|
|
fatal("\n"); |
285 |
|
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goto ret; |
286 |
|
|
} |
287 |
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288 |
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/* debug("dirofs = 0x%llx\n", (long long)dirofs); */ |
289 |
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290 |
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/* Free the old dirbuf, and allocate a new one: */ |
291 |
|
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free(dirbuf); |
292 |
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dirbuf = malloc(512); |
293 |
|
|
if (dirbuf == NULL) { |
294 |
|
|
fatal("out of memory in iso_load_bootblock()\n"); |
295 |
|
|
exit(1); |
296 |
|
|
} |
297 |
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|
298 |
|
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for (;;) { |
299 |
|
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int len, i; |
300 |
|
|
|
301 |
|
|
/* Too close to another sector? Then realign. */ |
302 |
|
|
if ((dirofs & 2047) + 70 > 2047) { |
303 |
|
|
dirofs = (dirofs | 2047) + 1; |
304 |
|
|
/* debug("realign dirofs = 0x%llx\n", dirofs); */ |
305 |
|
|
} |
306 |
|
|
|
307 |
|
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, |
308 |
|
|
dirbuf, 256); |
309 |
|
|
if (!res2) { |
310 |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
311 |
|
|
goto ret; |
312 |
|
|
} |
313 |
|
|
|
314 |
|
|
dp = dirbuf; |
315 |
|
|
len = dp[0]; |
316 |
|
|
if (len < 2) |
317 |
|
|
break; |
318 |
|
|
|
319 |
|
|
/* |
320 |
|
|
* TODO: Actually parse the directory entry! |
321 |
|
|
* |
322 |
|
|
* Haha, this must be rewritten. |
323 |
|
|
*/ |
324 |
|
|
for (i=32; i<len; i++) { |
325 |
|
|
if (i < len - strlen(filename)) |
326 |
|
|
if (strncasecmp(filename, (char *)dp + i, |
327 |
|
|
strlen(filename)) == 0) { |
328 |
|
|
/* The filename was found somewhere |
329 |
|
|
in the directory entry. */ |
330 |
|
|
if (match_entry != NULL) { |
331 |
|
|
fatal("TODO: I'm too lazy to" |
332 |
|
|
" implement a correct " |
333 |
|
|
"directory parser right " |
334 |
|
|
"now... (BUG)\n"); |
335 |
|
|
exit(1); |
336 |
|
|
} |
337 |
|
|
match_entry = malloc(512); |
338 |
|
|
if (match_entry == NULL) { |
339 |
|
|
fatal("out of memory\n"); |
340 |
|
|
exit(1); |
341 |
|
|
} |
342 |
|
|
memcpy(match_entry, dp, 512); |
343 |
|
|
break; |
344 |
|
|
} |
345 |
|
|
} |
346 |
|
|
|
347 |
|
|
dirofs += len; |
348 |
|
|
} |
349 |
|
|
|
350 |
|
|
if (match_entry == NULL) { |
351 |
|
|
char *blah = filename_orig; |
352 |
|
|
|
353 |
|
|
fatal("could not find '%s' in /", filename); |
354 |
|
|
|
355 |
|
|
/* Print the first part of the filename: */ |
356 |
|
|
while (blah != filename) |
357 |
|
|
fatal("%c", *blah++); |
358 |
|
|
|
359 |
|
|
fatal("\n"); |
360 |
|
|
goto ret; |
361 |
|
|
} |
362 |
|
|
|
363 |
|
|
fileofs = match_entry[2] + (match_entry[3] << 8) + |
364 |
|
|
(match_entry[4] << 16) + (match_entry[5] << 24); |
365 |
|
|
filelen = match_entry[10] + (match_entry[11] << 8) + |
366 |
|
|
(match_entry[12] << 16) + (match_entry[13] << 24); |
367 |
|
|
fileofs *= 2048; |
368 |
|
|
|
369 |
|
|
/* debug("filelen=%llx fileofs=%llx\n", (long long)filelen, |
370 |
|
|
(long long)fileofs); */ |
371 |
|
|
|
372 |
|
|
filebuf = malloc(filelen); |
373 |
|
|
if (filebuf == NULL) { |
374 |
|
|
fatal("could not allocate %lli bytes to read the file" |
375 |
|
|
" from the disk image!\n", (long long)filelen); |
376 |
|
|
goto ret; |
377 |
|
|
} |
378 |
|
|
|
379 |
|
|
tmpfilename = strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
380 |
|
|
|
381 |
|
|
debug("extracting %lli bytes into %s\n", |
382 |
|
|
(long long)filelen, tmpfilename); |
383 |
|
|
|
384 |
|
|
res2 = diskimage_access(m, disk_id, disk_type, 0, fileofs, filebuf, |
385 |
|
|
filelen); |
386 |
|
|
if (!res2) { |
387 |
|
|
fatal("could not read the file from the disk image!\n"); |
388 |
|
|
goto ret; |
389 |
|
|
} |
390 |
|
|
|
391 |
|
|
tmpfile_handle = mkstemp(tmpfilename); |
392 |
|
|
if (tmpfile_handle < 0) { |
393 |
|
|
fatal("could not create %s\n", tmpfilename); |
394 |
|
|
exit(1); |
395 |
|
|
} |
396 |
|
|
write(tmpfile_handle, filebuf, filelen); |
397 |
|
|
close(tmpfile_handle); |
398 |
|
|
|
399 |
|
|
/* Add the temporary filename to the load_namesp array: */ |
400 |
|
|
(*n_loadp)++; |
401 |
|
|
new_array = malloc(sizeof(char *) * (*n_loadp)); |
402 |
|
|
if (new_array == NULL) { |
403 |
|
|
fatal("out of memory\n"); |
404 |
|
|
exit(1); |
405 |
|
|
} |
406 |
|
|
memcpy(new_array, *load_namesp, sizeof(char *) * (*n_loadp)); |
407 |
|
|
*load_namesp = new_array; |
408 |
|
|
|
409 |
|
|
/* This adds a Backspace char in front of the filename; this |
410 |
|
|
is a special hack which causes the file to be removed once |
411 |
|
|
it has been loaded. */ |
412 |
|
|
tmpfilename = realloc(tmpfilename, strlen(tmpfilename) + 2); |
413 |
|
|
memmove(tmpfilename + 1, tmpfilename, strlen(tmpfilename) + 1); |
414 |
|
|
tmpfilename[0] = 8; |
415 |
|
|
|
416 |
|
|
(*load_namesp)[*n_loadp - 1] = tmpfilename; |
417 |
|
|
|
418 |
|
|
res = 1; |
419 |
|
|
|
420 |
|
|
ret: |
421 |
|
|
if (dirbuf != NULL) |
422 |
|
|
free(dirbuf); |
423 |
|
|
|
424 |
|
|
if (filebuf != NULL) |
425 |
|
|
free(filebuf); |
426 |
|
|
|
427 |
|
|
if (match_entry != NULL) |
428 |
|
|
free(match_entry); |
429 |
|
|
|
430 |
|
|
free(filename_orig); |
431 |
|
|
|
432 |
|
|
debug_indentation(-iadd); |
433 |
|
|
return res; |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
|
437 |
|
|
/* |
438 |
dpavlin |
14 |
* apple_load_bootblock(): |
439 |
|
|
* |
440 |
|
|
* Try to load a kernel from a disk image with an Apple Partition Table. |
441 |
|
|
* |
442 |
|
|
* TODO: This function uses too many magic offsets and so on; it should be |
443 |
|
|
* cleaned up some day. See http://www.awprofessional.com/articles/ |
444 |
|
|
* article.asp?p=376123&seqNum=3&rl=1 for some info on the Apple |
445 |
|
|
* partition format. |
446 |
|
|
* |
447 |
|
|
* Returns 1 on success, 0 on failure. |
448 |
|
|
*/ |
449 |
|
|
static int apple_load_bootblock(struct machine *m, struct cpu *cpu, |
450 |
|
|
int disk_id, int disk_type, int *n_loadp, char ***load_namesp) |
451 |
|
|
{ |
452 |
|
|
unsigned char buf[0x8000]; |
453 |
|
|
int res, partnr, n_partitions = 0, n_hfs_partitions = 0; |
454 |
|
|
uint64_t hfs_start, hfs_length; |
455 |
|
|
|
456 |
|
|
res = diskimage_access(m, disk_id, disk_type, 0, 0x0, buf, sizeof(buf)); |
457 |
|
|
if (!res) { |
458 |
|
|
fatal("apple_load_bootblock: couldn't read the disk " |
459 |
|
|
"image. Aborting.\n"); |
460 |
|
|
return 0; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
|
partnr = 0; |
464 |
|
|
do { |
465 |
|
|
int start, length; |
466 |
|
|
int ofs = 0x200 * (partnr + 1); |
467 |
|
|
if (partnr == 0) |
468 |
|
|
n_partitions = buf[ofs + 7]; |
469 |
|
|
start = (buf[ofs + 8] << 24) + (buf[ofs + 9] << 16) + |
470 |
|
|
(buf[ofs + 10] << 8) + buf[ofs + 11]; |
471 |
|
|
length = (buf[ofs + 12] << 24) + (buf[ofs + 13] << 16) + |
472 |
|
|
(buf[ofs + 14] << 8) + buf[ofs + 15]; |
473 |
|
|
|
474 |
|
|
debug("partition %i: '%s', type '%s', start %i, length %i\n", |
475 |
|
|
partnr, buf + ofs + 0x10, buf + ofs + 0x30, |
476 |
|
|
start, length); |
477 |
|
|
|
478 |
|
|
if (strcmp((char *)buf + ofs + 0x30, "Apple_HFS") == 0) { |
479 |
|
|
n_hfs_partitions ++; |
480 |
|
|
hfs_start = 512 * start; |
481 |
|
|
hfs_length = 512 * length; |
482 |
|
|
} |
483 |
|
|
|
484 |
|
|
/* Any more partitions? */ |
485 |
|
|
partnr ++; |
486 |
|
|
} while (partnr < n_partitions); |
487 |
|
|
|
488 |
|
|
if (n_hfs_partitions == 0) { |
489 |
|
|
fatal("Error: No HFS partition found! TODO\n"); |
490 |
|
|
return 0; |
491 |
|
|
} |
492 |
|
|
if (n_hfs_partitions >= 2) { |
493 |
|
|
fatal("Error: Too many HFS partitions found! TODO\n"); |
494 |
|
|
return 0; |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
return 0; |
498 |
|
|
} |
499 |
|
|
|
500 |
|
|
|
501 |
|
|
/* |
502 |
dpavlin |
2 |
* load_bootblock(): |
503 |
|
|
* |
504 |
|
|
* For some emulation modes, it is possible to boot from a harddisk image by |
505 |
|
|
* loading a bootblock from a specific disk offset into memory, and executing |
506 |
|
|
* that, instead of requiring a separate kernel file. It is then up to the |
507 |
|
|
* bootblock to load a kernel. |
508 |
dpavlin |
6 |
* |
509 |
|
|
* Returns 1 on success, 0 on failure. |
510 |
dpavlin |
2 |
*/ |
511 |
dpavlin |
6 |
static int load_bootblock(struct machine *m, struct cpu *cpu, |
512 |
|
|
int *n_loadp, char ***load_namesp) |
513 |
dpavlin |
2 |
{ |
514 |
dpavlin |
6 |
int boot_disk_id, boot_disk_type = 0, n_blocks, res, readofs, |
515 |
|
|
iso_type, retval = 0; |
516 |
dpavlin |
2 |
unsigned char minibuf[0x20]; |
517 |
|
|
unsigned char *bootblock_buf; |
518 |
|
|
uint64_t bootblock_offset; |
519 |
|
|
uint64_t bootblock_loadaddr, bootblock_pc; |
520 |
|
|
|
521 |
dpavlin |
6 |
boot_disk_id = diskimage_bootdev(m, &boot_disk_type); |
522 |
dpavlin |
2 |
if (boot_disk_id < 0) |
523 |
dpavlin |
6 |
return 0; |
524 |
dpavlin |
2 |
|
525 |
|
|
switch (m->machine_type) { |
526 |
|
|
case MACHINE_DEC: |
527 |
|
|
/* |
528 |
|
|
* The first few bytes of a disk contains information about |
529 |
|
|
* where the bootblock(s) are located. (These are all 32-bit |
530 |
|
|
* little-endian words.) |
531 |
|
|
* |
532 |
|
|
* Offset 0x10 = load address |
533 |
|
|
* 0x14 = initial PC value |
534 |
|
|
* 0x18 = nr of 512-byte blocks to read |
535 |
|
|
* 0x1c = offset on disk to where the bootblocks |
536 |
|
|
* are (in 512-byte units) |
537 |
|
|
* 0x20 = nr of blocks to read... |
538 |
|
|
* 0x24 = offset... |
539 |
|
|
* |
540 |
|
|
* nr of blocks to read and offset are repeated until nr of |
541 |
|
|
* blocks to read is zero. |
542 |
|
|
*/ |
543 |
dpavlin |
6 |
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
544 |
dpavlin |
2 |
minibuf, sizeof(minibuf)); |
545 |
|
|
|
546 |
|
|
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
547 |
|
|
+ (minibuf[0x12] << 16) + (minibuf[0x13] << 24); |
548 |
|
|
|
549 |
|
|
/* Convert loadaddr to uncached: */ |
550 |
|
|
if ((bootblock_loadaddr & 0xf0000000ULL) != 0x80000000 && |
551 |
|
|
(bootblock_loadaddr & 0xf0000000ULL) != 0xa0000000) |
552 |
|
|
fatal("\nWARNING! Weird load address 0x%08x.\n\n", |
553 |
|
|
(int)bootblock_loadaddr); |
554 |
|
|
bootblock_loadaddr &= 0x0fffffffULL; |
555 |
|
|
bootblock_loadaddr |= 0xffffffffa0000000ULL; |
556 |
|
|
|
557 |
|
|
bootblock_pc = minibuf[0x14] + (minibuf[0x15] << 8) |
558 |
|
|
+ (minibuf[0x16] << 16) + (minibuf[0x17] << 24); |
559 |
|
|
|
560 |
|
|
bootblock_pc &= 0x0fffffffULL; |
561 |
|
|
bootblock_pc |= 0xffffffffa0000000ULL; |
562 |
|
|
cpu->pc = bootblock_pc; |
563 |
|
|
|
564 |
|
|
debug("DEC boot: loadaddr=0x%08x, pc=0x%08x", |
565 |
|
|
(int)bootblock_loadaddr, (int)bootblock_pc); |
566 |
|
|
|
567 |
|
|
readofs = 0x18; |
568 |
|
|
|
569 |
|
|
for (;;) { |
570 |
dpavlin |
6 |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
571 |
|
|
0, readofs, minibuf, sizeof(minibuf)); |
572 |
dpavlin |
2 |
if (!res) { |
573 |
dpavlin |
6 |
fatal("Couldn't read the disk image. " |
574 |
|
|
"Aborting.\n"); |
575 |
|
|
return 0; |
576 |
dpavlin |
2 |
} |
577 |
|
|
|
578 |
|
|
n_blocks = minibuf[0] + (minibuf[1] << 8) |
579 |
|
|
+ (minibuf[2] << 16) + (minibuf[3] << 24); |
580 |
|
|
|
581 |
|
|
bootblock_offset = (minibuf[4] + (minibuf[5] << 8) |
582 |
|
|
+ (minibuf[6] << 16) + (minibuf[7] << 24)) * 512; |
583 |
|
|
|
584 |
|
|
if (n_blocks < 1) |
585 |
|
|
break; |
586 |
|
|
|
587 |
|
|
debug(readofs == 0x18? ": %i" : " + %i", n_blocks); |
588 |
|
|
|
589 |
|
|
if (n_blocks * 512 > 65536) |
590 |
|
|
fatal("\nWARNING! Unusually large bootblock " |
591 |
|
|
"(%i bytes)\n\n", n_blocks * 512); |
592 |
|
|
|
593 |
|
|
bootblock_buf = malloc(n_blocks * 512); |
594 |
|
|
if (bootblock_buf == NULL) { |
595 |
|
|
fprintf(stderr, "out of memory in " |
596 |
|
|
"load_bootblock()\n"); |
597 |
|
|
exit(1); |
598 |
|
|
} |
599 |
|
|
|
600 |
dpavlin |
6 |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
601 |
|
|
0, bootblock_offset, bootblock_buf, n_blocks * 512); |
602 |
dpavlin |
2 |
if (!res) { |
603 |
|
|
fatal("WARNING: could not load bootblocks from" |
604 |
|
|
" disk offset 0x%llx\n", |
605 |
|
|
(long long)bootblock_offset); |
606 |
|
|
} |
607 |
|
|
|
608 |
|
|
store_buf(cpu, bootblock_loadaddr, |
609 |
|
|
(char *)bootblock_buf, n_blocks * 512); |
610 |
|
|
|
611 |
|
|
bootblock_loadaddr += 512*n_blocks; |
612 |
|
|
free(bootblock_buf); |
613 |
|
|
readofs += 8; |
614 |
|
|
} |
615 |
|
|
|
616 |
|
|
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
617 |
dpavlin |
6 |
return 1; |
618 |
dpavlin |
4 |
|
619 |
|
|
case MACHINE_X86: |
620 |
dpavlin |
6 |
/* TODO: "El Torito" etc? */ |
621 |
|
|
if (diskimage_is_a_cdrom(cpu->machine, boot_disk_id, |
622 |
|
|
boot_disk_type)) |
623 |
|
|
break; |
624 |
dpavlin |
4 |
|
625 |
|
|
bootblock_buf = malloc(512); |
626 |
|
|
if (bootblock_buf == NULL) { |
627 |
|
|
fprintf(stderr, "Out of memory.\n"); |
628 |
|
|
exit(1); |
629 |
|
|
} |
630 |
|
|
|
631 |
dpavlin |
6 |
debug("loading PC bootsector from %s id %i\n", |
632 |
|
|
diskimage_types[boot_disk_type], boot_disk_id); |
633 |
|
|
|
634 |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
635 |
dpavlin |
4 |
bootblock_buf, 512); |
636 |
|
|
if (!res) { |
637 |
dpavlin |
6 |
fatal("Couldn't read the disk image. Aborting.\n"); |
638 |
|
|
return 0; |
639 |
dpavlin |
4 |
} |
640 |
|
|
|
641 |
|
|
if (bootblock_buf[510] != 0x55 || bootblock_buf[511] != 0xaa) |
642 |
|
|
debug("WARNING! The 0x55,0xAA marker is missing! " |
643 |
|
|
"Booting anyway.\n"); |
644 |
|
|
store_buf(cpu, 0x7c00, (char *)bootblock_buf, 512); |
645 |
|
|
free(bootblock_buf); |
646 |
|
|
|
647 |
dpavlin |
6 |
return 1; |
648 |
|
|
} |
649 |
|
|
|
650 |
|
|
|
651 |
|
|
/* |
652 |
|
|
* Try reading a kernel manually from the disk. The code here |
653 |
dpavlin |
18 |
* does not rely on machine-dependent boot blocks etc. |
654 |
dpavlin |
6 |
*/ |
655 |
|
|
/* ISO9660: (0x800 bytes at 0x8000) */ |
656 |
|
|
bootblock_buf = malloc(0x800); |
657 |
|
|
if (bootblock_buf == NULL) { |
658 |
|
|
fprintf(stderr, "Out of memory.\n"); |
659 |
dpavlin |
2 |
exit(1); |
660 |
|
|
} |
661 |
dpavlin |
6 |
|
662 |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
663 |
|
|
0, 0x8000, bootblock_buf, 0x800); |
664 |
|
|
if (!res) { |
665 |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
666 |
|
|
return 0; |
667 |
|
|
} |
668 |
|
|
|
669 |
|
|
iso_type = 0; |
670 |
|
|
if (strncmp((char *)bootblock_buf+1, "CD001", 5) == 0) |
671 |
|
|
iso_type = 1; |
672 |
|
|
if (strncmp((char *)bootblock_buf+1, "CDW01", 5) == 0) |
673 |
|
|
iso_type = 2; |
674 |
|
|
if (strncmp((char *)bootblock_buf+1, "CDROM", 5) == 0) |
675 |
|
|
iso_type = 3; |
676 |
|
|
|
677 |
|
|
if (iso_type != 0) { |
678 |
|
|
/* We can't load a kernel if the name |
679 |
|
|
isn't specified. */ |
680 |
|
|
if (cpu->machine->boot_kernel_filename == NULL || |
681 |
|
|
cpu->machine->boot_kernel_filename[0] == '\0') |
682 |
|
|
fatal("\nISO9660 filesystem, but no kernel " |
683 |
|
|
"specified? (Use the -j option.)\n"); |
684 |
|
|
else |
685 |
|
|
retval = iso_load_bootblock(m, cpu, boot_disk_id, |
686 |
|
|
boot_disk_type, iso_type, bootblock_buf, |
687 |
|
|
n_loadp, load_namesp); |
688 |
|
|
} |
689 |
|
|
|
690 |
dpavlin |
14 |
if (retval != 0) |
691 |
|
|
goto ret_ok; |
692 |
|
|
|
693 |
|
|
/* Apple parition table: */ |
694 |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
695 |
|
|
0, 0x0, bootblock_buf, 0x800); |
696 |
|
|
if (!res) { |
697 |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
698 |
|
|
return 0; |
699 |
|
|
} |
700 |
|
|
if (bootblock_buf[0x000] == 'E' && bootblock_buf[0x001] == 'R' && |
701 |
|
|
bootblock_buf[0x200] == 'P' && bootblock_buf[0x201] == 'M') { |
702 |
|
|
/* We can't load a kernel if the name |
703 |
|
|
isn't specified. */ |
704 |
|
|
if (cpu->machine->boot_kernel_filename == NULL || |
705 |
|
|
cpu->machine->boot_kernel_filename[0] == '\0') |
706 |
|
|
fatal("\nApple partition table, but no kernel " |
707 |
|
|
"specified? (Use the -j option.)\n"); |
708 |
|
|
else |
709 |
|
|
retval = apple_load_bootblock(m, cpu, boot_disk_id, |
710 |
|
|
boot_disk_type, n_loadp, load_namesp); |
711 |
|
|
} |
712 |
|
|
|
713 |
|
|
ret_ok: |
714 |
dpavlin |
6 |
free(bootblock_buf); |
715 |
|
|
return retval; |
716 |
dpavlin |
2 |
} |
717 |
|
|
|
718 |
|
|
|
719 |
|
|
/* |
720 |
|
|
* emul_new(): |
721 |
|
|
* |
722 |
|
|
* Returns a reasonably initialized struct emul. |
723 |
|
|
*/ |
724 |
|
|
struct emul *emul_new(char *name) |
725 |
|
|
{ |
726 |
|
|
struct emul *e; |
727 |
|
|
e = malloc(sizeof(struct emul)); |
728 |
|
|
if (e == NULL) { |
729 |
|
|
fprintf(stderr, "out of memory in emul_new()\n"); |
730 |
|
|
exit(1); |
731 |
|
|
} |
732 |
|
|
|
733 |
|
|
memset(e, 0, sizeof(struct emul)); |
734 |
|
|
|
735 |
|
|
/* Sane default values: */ |
736 |
|
|
e->n_machines = 0; |
737 |
dpavlin |
10 |
e->next_serial_nr = 1; |
738 |
dpavlin |
2 |
|
739 |
|
|
if (name != NULL) { |
740 |
|
|
e->name = strdup(name); |
741 |
|
|
if (e->name == NULL) { |
742 |
|
|
fprintf(stderr, "out of memory in emul_new()\n"); |
743 |
|
|
exit(1); |
744 |
|
|
} |
745 |
|
|
} |
746 |
|
|
|
747 |
|
|
return e; |
748 |
|
|
} |
749 |
|
|
|
750 |
|
|
|
751 |
|
|
/* |
752 |
|
|
* emul_add_machine(): |
753 |
|
|
* |
754 |
|
|
* Calls machine_new(), adds the new machine into the emul struct, and |
755 |
|
|
* returns a pointer to the new machine. |
756 |
|
|
* |
757 |
|
|
* This function should be used instead of manually calling machine_new(). |
758 |
|
|
*/ |
759 |
|
|
struct machine *emul_add_machine(struct emul *e, char *name) |
760 |
|
|
{ |
761 |
|
|
struct machine *m; |
762 |
|
|
|
763 |
|
|
m = machine_new(name, e); |
764 |
|
|
m->serial_nr = (e->next_serial_nr ++); |
765 |
|
|
|
766 |
|
|
e->n_machines ++; |
767 |
|
|
e->machines = realloc(e->machines, |
768 |
|
|
sizeof(struct machine *) * e->n_machines); |
769 |
|
|
if (e->machines == NULL) { |
770 |
|
|
fprintf(stderr, "emul_add_machine(): out of memory\n"); |
771 |
|
|
exit(1); |
772 |
|
|
} |
773 |
|
|
|
774 |
|
|
e->machines[e->n_machines - 1] = m; |
775 |
|
|
return m; |
776 |
|
|
} |
777 |
|
|
|
778 |
|
|
|
779 |
|
|
/* |
780 |
|
|
* add_arc_components(): |
781 |
|
|
* |
782 |
|
|
* This function adds ARCBIOS memory descriptors for the loaded program, |
783 |
|
|
* and ARCBIOS components for SCSI devices. |
784 |
|
|
*/ |
785 |
|
|
static void add_arc_components(struct machine *m) |
786 |
|
|
{ |
787 |
|
|
struct cpu *cpu = m->cpus[m->bootstrap_cpu]; |
788 |
|
|
uint64_t start = cpu->pc & 0x1fffffff; |
789 |
|
|
uint64_t len = 0xc00000 - start; |
790 |
|
|
struct diskimage *d; |
791 |
|
|
uint64_t scsicontroller, scsidevice, scsidisk; |
792 |
|
|
|
793 |
|
|
if ((cpu->pc >> 60) != 0xf) { |
794 |
|
|
start = cpu->pc & 0xffffffffffULL; |
795 |
|
|
len = 0xc00000 - start; |
796 |
|
|
} |
797 |
|
|
|
798 |
|
|
len += 1048576 * m->memory_offset_in_mb; |
799 |
|
|
|
800 |
dpavlin |
12 |
/* |
801 |
|
|
* NOTE/TODO: magic 12MB end of load program area |
802 |
|
|
* |
803 |
|
|
* Hm. This breaks the old FreeBSD/MIPS snapshots... |
804 |
|
|
*/ |
805 |
|
|
#if 0 |
806 |
dpavlin |
2 |
arcbios_add_memory_descriptor(cpu, |
807 |
|
|
0x60000 + m->memory_offset_in_mb * 1048576, |
808 |
|
|
start-0x60000 - m->memory_offset_in_mb * 1048576, |
809 |
|
|
ARCBIOS_MEM_FreeMemory); |
810 |
dpavlin |
12 |
#endif |
811 |
dpavlin |
2 |
arcbios_add_memory_descriptor(cpu, |
812 |
|
|
start, len, ARCBIOS_MEM_LoadedProgram); |
813 |
|
|
|
814 |
dpavlin |
6 |
scsicontroller = arcbios_get_scsicontroller(m); |
815 |
dpavlin |
2 |
if (scsicontroller == 0) |
816 |
|
|
return; |
817 |
|
|
|
818 |
|
|
/* TODO: The device 'name' should defined be somewhere else. */ |
819 |
|
|
|
820 |
|
|
d = m->first_diskimage; |
821 |
|
|
while (d != NULL) { |
822 |
|
|
if (d->type == DISKIMAGE_SCSI) { |
823 |
|
|
int a, b, flags = COMPONENT_FLAG_Input; |
824 |
|
|
char component_string[100]; |
825 |
|
|
char *name = "DEC RZ58 (C) DEC2000"; |
826 |
|
|
|
827 |
|
|
/* Read-write, or read-only? */ |
828 |
|
|
if (d->writable) |
829 |
|
|
flags |= COMPONENT_FLAG_Output; |
830 |
|
|
else |
831 |
|
|
flags |= COMPONENT_FLAG_ReadOnly; |
832 |
|
|
|
833 |
|
|
a = COMPONENT_TYPE_DiskController; |
834 |
|
|
b = COMPONENT_TYPE_DiskPeripheral; |
835 |
|
|
|
836 |
|
|
if (d->is_a_cdrom) { |
837 |
|
|
flags |= COMPONENT_FLAG_Removable; |
838 |
|
|
a = COMPONENT_TYPE_CDROMController; |
839 |
|
|
b = COMPONENT_TYPE_FloppyDiskPeripheral; |
840 |
|
|
name = "NEC CD-ROM CDR-210P 1.0 "; |
841 |
|
|
} |
842 |
|
|
|
843 |
|
|
scsidevice = arcbios_addchild_manual(cpu, |
844 |
|
|
COMPONENT_CLASS_ControllerClass, |
845 |
|
|
a, flags, 1, 2, d->id, 0xffffffff, |
846 |
|
|
name, scsicontroller, NULL, 0); |
847 |
|
|
|
848 |
|
|
scsidisk = arcbios_addchild_manual(cpu, |
849 |
|
|
COMPONENT_CLASS_PeripheralClass, |
850 |
|
|
b, flags, 1, 2, 0, 0xffffffff, NULL, |
851 |
|
|
scsidevice, NULL, 0); |
852 |
|
|
|
853 |
|
|
/* |
854 |
|
|
* Add device string to component address mappings: |
855 |
|
|
* "scsi(0)disk(0)rdisk(0)partition(0)" |
856 |
|
|
*/ |
857 |
|
|
|
858 |
|
|
if (d->is_a_cdrom) { |
859 |
|
|
snprintf(component_string, |
860 |
|
|
sizeof(component_string), |
861 |
|
|
"scsi(0)cdrom(%i)", d->id); |
862 |
dpavlin |
6 |
arcbios_add_string_to_component(m, |
863 |
dpavlin |
2 |
component_string, scsidevice); |
864 |
|
|
|
865 |
|
|
snprintf(component_string, |
866 |
|
|
sizeof(component_string), |
867 |
|
|
"scsi(0)cdrom(%i)fdisk(0)", d->id); |
868 |
dpavlin |
6 |
arcbios_add_string_to_component(m, |
869 |
dpavlin |
2 |
component_string, scsidisk); |
870 |
|
|
} else { |
871 |
|
|
snprintf(component_string, |
872 |
|
|
sizeof(component_string), |
873 |
|
|
"scsi(0)disk(%i)", d->id); |
874 |
dpavlin |
6 |
arcbios_add_string_to_component(m, |
875 |
dpavlin |
2 |
component_string, scsidevice); |
876 |
|
|
|
877 |
|
|
snprintf(component_string, |
878 |
|
|
sizeof(component_string), |
879 |
|
|
"scsi(0)disk(%i)rdisk(0)", d->id); |
880 |
dpavlin |
6 |
arcbios_add_string_to_component(m, |
881 |
dpavlin |
2 |
component_string, scsidisk); |
882 |
|
|
} |
883 |
|
|
} |
884 |
|
|
|
885 |
|
|
d = d->next; |
886 |
|
|
} |
887 |
|
|
} |
888 |
|
|
|
889 |
|
|
|
890 |
|
|
/* |
891 |
|
|
* emul_machine_setup(): |
892 |
|
|
* |
893 |
|
|
* o) Initialize the hardware (RAM, devices, CPUs, ...) which |
894 |
|
|
* will be emulated in this machine. |
895 |
|
|
* |
896 |
|
|
* o) Load ROM code and/or other programs into emulated memory. |
897 |
|
|
* |
898 |
|
|
* o) Special hacks needed after programs have been loaded. |
899 |
|
|
*/ |
900 |
|
|
void emul_machine_setup(struct machine *m, int n_load, char **load_names, |
901 |
|
|
int n_devices, char **device_names) |
902 |
|
|
{ |
903 |
|
|
struct emul *emul; |
904 |
|
|
struct cpu *cpu; |
905 |
|
|
int i, iadd=4; |
906 |
dpavlin |
6 |
uint64_t memory_amount, entrypoint = 0, gp = 0, toc = 0; |
907 |
dpavlin |
2 |
int byte_order; |
908 |
|
|
|
909 |
|
|
emul = m->emul; |
910 |
|
|
|
911 |
|
|
debug("machine \"%s\":\n", m->name); |
912 |
|
|
debug_indentation(iadd); |
913 |
|
|
|
914 |
|
|
/* For userland-only, this decides which ARCH/cpu_name to use: */ |
915 |
|
|
if (m->machine_type == MACHINE_USERLAND && m->userland_emul != NULL) { |
916 |
|
|
useremul_name_to_useremul(NULL, m->userland_emul, |
917 |
|
|
&m->arch, &m->machine_name, &m->cpu_name); |
918 |
|
|
if (m->arch == ARCH_NOARCH) { |
919 |
|
|
printf("Unsupported userland emulation mode.\n"); |
920 |
|
|
exit(1); |
921 |
|
|
} |
922 |
|
|
} |
923 |
|
|
|
924 |
|
|
if (m->machine_type == MACHINE_NONE) { |
925 |
|
|
fatal("No machine type specified?\n"); |
926 |
|
|
exit(1); |
927 |
|
|
} |
928 |
|
|
|
929 |
|
|
m->cpu_family = cpu_family_ptr_by_number(m->arch); |
930 |
|
|
|
931 |
dpavlin |
12 |
if (m->arch == ARCH_ALPHA) |
932 |
|
|
m->arch_pagesize = 8192; |
933 |
|
|
|
934 |
dpavlin |
10 |
if (m->arch != ARCH_MIPS) |
935 |
|
|
m->bintrans_enable = 0; |
936 |
|
|
|
937 |
dpavlin |
2 |
machine_memsize_fix(m); |
938 |
|
|
|
939 |
|
|
/* |
940 |
|
|
* Create the system's memory: |
941 |
|
|
* |
942 |
|
|
* (Don't print the amount for userland-only emulation; the |
943 |
|
|
* size doesn't matter.) |
944 |
|
|
*/ |
945 |
|
|
if (m->machine_type != MACHINE_USERLAND) |
946 |
|
|
debug("memory: %i MB", m->physical_ram_in_mb); |
947 |
|
|
memory_amount = (uint64_t)m->physical_ram_in_mb * 1048576; |
948 |
|
|
if (m->memory_offset_in_mb > 0) { |
949 |
|
|
/* |
950 |
|
|
* A special hack is used for some SGI models, |
951 |
|
|
* where memory is offset by 128MB to leave room for |
952 |
|
|
* EISA space and other things. |
953 |
|
|
*/ |
954 |
|
|
debug(" (offset by %iMB)", m->memory_offset_in_mb); |
955 |
|
|
memory_amount += 1048576 * m->memory_offset_in_mb; |
956 |
|
|
} |
957 |
dpavlin |
12 |
m->memory = memory_new(memory_amount, m->arch); |
958 |
dpavlin |
2 |
if (m->machine_type != MACHINE_USERLAND) |
959 |
|
|
debug("\n"); |
960 |
|
|
|
961 |
|
|
/* Create CPUs: */ |
962 |
|
|
if (m->cpu_name == NULL) |
963 |
|
|
machine_default_cputype(m); |
964 |
|
|
if (m->ncpus == 0) { |
965 |
|
|
/* TODO: This should be moved elsewhere... */ |
966 |
|
|
if (m->machine_type == MACHINE_BEBOX) |
967 |
|
|
m->ncpus = 2; |
968 |
|
|
else if (m->machine_type == MACHINE_ARC && |
969 |
|
|
m->machine_subtype == MACHINE_ARC_NEC_R96) |
970 |
|
|
m->ncpus = 2; |
971 |
|
|
else if (m->machine_type == MACHINE_ARC && |
972 |
|
|
m->machine_subtype == MACHINE_ARC_NEC_R98) |
973 |
|
|
m->ncpus = 4; |
974 |
|
|
else |
975 |
|
|
m->ncpus = 1; |
976 |
|
|
} |
977 |
|
|
m->cpus = malloc(sizeof(struct cpu *) * m->ncpus); |
978 |
|
|
if (m->cpus == NULL) { |
979 |
|
|
fprintf(stderr, "out of memory\n"); |
980 |
|
|
exit(1); |
981 |
|
|
} |
982 |
|
|
memset(m->cpus, 0, sizeof(struct cpu *) * m->ncpus); |
983 |
|
|
|
984 |
|
|
/* Initialize dynamic binary translation, if available: */ |
985 |
|
|
if (m->bintrans_enable) |
986 |
|
|
bintrans_init(m, m->memory); |
987 |
|
|
|
988 |
|
|
debug("cpu0"); |
989 |
|
|
if (m->ncpus > 1) |
990 |
|
|
debug(" .. cpu%i", m->ncpus - 1); |
991 |
|
|
debug(": "); |
992 |
|
|
for (i=0; i<m->ncpus; i++) { |
993 |
|
|
m->cpus[i] = cpu_new(m->memory, m, i, m->cpu_name); |
994 |
|
|
if (m->bintrans_enable) |
995 |
|
|
bintrans_init_cpu(m->cpus[i]); |
996 |
|
|
} |
997 |
|
|
debug("\n"); |
998 |
|
|
|
999 |
dpavlin |
10 |
#if 0 |
1000 |
|
|
/* Special case: The Playstation Portable has an additional CPU: */ |
1001 |
|
|
if (m->machine_type == MACHINE_PSP) { |
1002 |
|
|
debug("cpu%i: ", m->ncpus); |
1003 |
|
|
m->cpus[m->ncpus] = cpu_new(m->memory, m, |
1004 |
|
|
0 /* use 0 here to show info with debug() */, |
1005 |
|
|
"Allegrex" /* TODO */); |
1006 |
|
|
if (m->bintrans_enable) |
1007 |
|
|
bintrans_init_cpu(m->cpus[m->ncpus]); |
1008 |
|
|
debug("\n"); |
1009 |
|
|
m->ncpus ++; |
1010 |
|
|
} |
1011 |
|
|
#endif |
1012 |
|
|
|
1013 |
dpavlin |
2 |
if (m->use_random_bootstrap_cpu) |
1014 |
|
|
m->bootstrap_cpu = random() % m->ncpus; |
1015 |
|
|
else |
1016 |
|
|
m->bootstrap_cpu = 0; |
1017 |
|
|
|
1018 |
|
|
cpu = m->cpus[m->bootstrap_cpu]; |
1019 |
|
|
|
1020 |
|
|
/* Set cpu->useremul_syscall, and use userland_memory_rw: */ |
1021 |
|
|
if (m->userland_emul != NULL) { |
1022 |
|
|
useremul_name_to_useremul(cpu, |
1023 |
|
|
m->userland_emul, NULL, NULL, NULL); |
1024 |
dpavlin |
12 |
|
1025 |
|
|
switch (m->arch) { |
1026 |
|
|
#ifdef ENABLE_ALPHA |
1027 |
|
|
case ARCH_ALPHA: |
1028 |
|
|
cpu->memory_rw = alpha_userland_memory_rw; |
1029 |
|
|
break; |
1030 |
|
|
#endif |
1031 |
|
|
default:cpu->memory_rw = userland_memory_rw; |
1032 |
|
|
} |
1033 |
dpavlin |
2 |
} |
1034 |
|
|
|
1035 |
|
|
if (m->use_x11) |
1036 |
|
|
x11_init(m); |
1037 |
|
|
|
1038 |
|
|
/* Fill memory with random bytes: */ |
1039 |
|
|
if (m->random_mem_contents) { |
1040 |
|
|
for (i=0; i<m->physical_ram_in_mb * 1048576; i+=256) { |
1041 |
|
|
unsigned char data[256]; |
1042 |
|
|
unsigned int j; |
1043 |
|
|
for (j=0; j<sizeof(data); j++) |
1044 |
|
|
data[j] = random() & 255; |
1045 |
dpavlin |
6 |
cpu->memory_rw(cpu, m->memory, i, data, sizeof(data), |
1046 |
|
|
MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS | PHYSICAL); |
1047 |
dpavlin |
2 |
} |
1048 |
|
|
} |
1049 |
|
|
|
1050 |
|
|
if (m->userland_emul != NULL) { |
1051 |
|
|
/* |
1052 |
|
|
* For userland-only emulation, no machine emulation |
1053 |
|
|
* is needed. |
1054 |
|
|
*/ |
1055 |
|
|
} else { |
1056 |
|
|
for (i=0; i<n_devices; i++) |
1057 |
|
|
device_add(m, device_names[i]); |
1058 |
|
|
|
1059 |
|
|
machine_setup(m); |
1060 |
|
|
} |
1061 |
|
|
|
1062 |
|
|
diskimage_dump_info(m); |
1063 |
|
|
|
1064 |
|
|
/* Load files (ROM code, boot code, ...) into memory: */ |
1065 |
|
|
if (n_load == 0) { |
1066 |
dpavlin |
6 |
if (m->first_diskimage != NULL) { |
1067 |
|
|
if (!load_bootblock(m, cpu, &n_load, &load_names)) { |
1068 |
|
|
fprintf(stderr, "\nNo executable files were" |
1069 |
|
|
" specified, and booting directly from disk" |
1070 |
|
|
" failed.\n"); |
1071 |
|
|
exit(1); |
1072 |
|
|
} |
1073 |
|
|
} else { |
1074 |
dpavlin |
2 |
fprintf(stderr, "No executable file(s) loaded, and " |
1075 |
|
|
"we are not booting directly from a disk image." |
1076 |
|
|
"\nAborting.\n"); |
1077 |
|
|
exit(1); |
1078 |
|
|
} |
1079 |
|
|
} |
1080 |
|
|
|
1081 |
|
|
while (n_load > 0) { |
1082 |
dpavlin |
6 |
FILE *tmp_f; |
1083 |
|
|
char *name_to_load = *load_names; |
1084 |
|
|
int remove_after_load = 0; |
1085 |
|
|
|
1086 |
|
|
/* Special hack for removing temporary files: */ |
1087 |
|
|
if (name_to_load[0] == 8) { |
1088 |
|
|
name_to_load ++; |
1089 |
|
|
remove_after_load = 1; |
1090 |
|
|
} |
1091 |
|
|
|
1092 |
|
|
/* |
1093 |
dpavlin |
10 |
* gzipped files are automagically gunzipped: |
1094 |
|
|
* NOTE/TODO: This isn't secure. system() is used. |
1095 |
dpavlin |
6 |
*/ |
1096 |
|
|
tmp_f = fopen(name_to_load, "r"); |
1097 |
|
|
if (tmp_f != NULL) { |
1098 |
|
|
unsigned char buf[2]; /* gzip header */ |
1099 |
|
|
memset(buf, 0, sizeof(buf)); |
1100 |
|
|
fread(buf, 1, sizeof(buf), tmp_f); |
1101 |
|
|
if (buf[0]==0x1f && buf[1]==0x8b) { |
1102 |
dpavlin |
10 |
size_t zzlen = strlen(name_to_load)*2 + 100; |
1103 |
|
|
char *zz = malloc(zzlen); |
1104 |
dpavlin |
6 |
debug("gunziping %s\n", name_to_load); |
1105 |
dpavlin |
10 |
/* |
1106 |
|
|
* gzip header found. If this was a file |
1107 |
|
|
* extracted from, say, a CDROM image, then it |
1108 |
|
|
* already has a temporary name. Otherwise we |
1109 |
|
|
* have to gunzip into a temporary file. |
1110 |
|
|
*/ |
1111 |
|
|
if (remove_after_load) { |
1112 |
|
|
snprintf(zz, zzlen, "mv %s %s.gz", |
1113 |
|
|
name_to_load, name_to_load); |
1114 |
|
|
system(zz); |
1115 |
|
|
snprintf(zz, zzlen, "gunzip %s.gz", |
1116 |
|
|
name_to_load); |
1117 |
|
|
system(zz); |
1118 |
|
|
} else { |
1119 |
|
|
/* gunzip into new temp file: */ |
1120 |
|
|
int tmpfile_handle; |
1121 |
|
|
char *new_temp_name = |
1122 |
|
|
strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
1123 |
|
|
tmpfile_handle = mkstemp(new_temp_name); |
1124 |
|
|
close(tmpfile_handle); |
1125 |
|
|
snprintf(zz, zzlen, "gunzip -c '%s' > " |
1126 |
|
|
"%s", name_to_load, new_temp_name); |
1127 |
|
|
system(zz); |
1128 |
|
|
name_to_load = new_temp_name; |
1129 |
|
|
remove_after_load = 1; |
1130 |
|
|
} |
1131 |
dpavlin |
6 |
free(zz); |
1132 |
|
|
} |
1133 |
|
|
fclose(tmp_f); |
1134 |
|
|
} |
1135 |
|
|
|
1136 |
dpavlin |
10 |
/* |
1137 |
|
|
* Ugly (but usable) hack for Playstation Portable: If the |
1138 |
|
|
* filename ends with ".pbp" and the file contains an ELF |
1139 |
|
|
* header, then extract the ELF file into a temporary file. |
1140 |
|
|
*/ |
1141 |
|
|
if (strlen(name_to_load) > 4 && strcasecmp(name_to_load + |
1142 |
|
|
strlen(name_to_load) - 4, ".pbp") == 0 && |
1143 |
|
|
(tmp_f = fopen(name_to_load, "r")) != NULL) { |
1144 |
|
|
off_t filesize, j, found=0; |
1145 |
|
|
unsigned char *buf; |
1146 |
|
|
fseek(tmp_f, 0, SEEK_END); |
1147 |
|
|
filesize = ftello(tmp_f); |
1148 |
|
|
fseek(tmp_f, 0, SEEK_SET); |
1149 |
|
|
buf = malloc(filesize); |
1150 |
|
|
if (buf == NULL) { |
1151 |
|
|
fprintf(stderr, "out of memory while trying" |
1152 |
|
|
" to read %s\n", name_to_load); |
1153 |
|
|
exit(1); |
1154 |
|
|
} |
1155 |
|
|
fread(buf, 1, filesize, tmp_f); |
1156 |
|
|
fclose(tmp_f); |
1157 |
|
|
/* Search for the ELF header, from offset 1 (!): */ |
1158 |
|
|
for (j=1; j<filesize - 4; j++) |
1159 |
|
|
if (memcmp(buf + j, ELFMAG, SELFMAG) == 0) { |
1160 |
|
|
found = j; |
1161 |
|
|
break; |
1162 |
|
|
} |
1163 |
|
|
if (found != 0) { |
1164 |
|
|
int tmpfile_handle; |
1165 |
|
|
char *new_temp_name = |
1166 |
|
|
strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
1167 |
|
|
debug("extracting ELF from %s (offset 0x%x)\n", |
1168 |
|
|
name_to_load, (int)found); |
1169 |
|
|
tmpfile_handle = mkstemp(new_temp_name); |
1170 |
|
|
write(tmpfile_handle, buf + found, |
1171 |
|
|
filesize - found); |
1172 |
|
|
close(tmpfile_handle); |
1173 |
|
|
name_to_load = new_temp_name; |
1174 |
|
|
remove_after_load = 1; |
1175 |
|
|
} |
1176 |
|
|
} |
1177 |
|
|
|
1178 |
dpavlin |
6 |
/* Special things required _before_ loading the file: */ |
1179 |
|
|
switch (m->arch) { |
1180 |
|
|
case ARCH_X86: |
1181 |
|
|
/* |
1182 |
|
|
* X86 machines normally don't need to load any files, |
1183 |
|
|
* they can boot from disk directly. Therefore, an x86 |
1184 |
|
|
* machine usually boots up in 16-bit real mode. When |
1185 |
|
|
* loading a 32-bit (or even 64-bit) ELF, that's not |
1186 |
|
|
* very nice, hence this special case. |
1187 |
|
|
*/ |
1188 |
|
|
pc_bios_simple_pmode_setup(cpu); |
1189 |
|
|
break; |
1190 |
|
|
} |
1191 |
|
|
|
1192 |
dpavlin |
2 |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
1193 |
|
|
|
1194 |
dpavlin |
6 |
/* |
1195 |
|
|
* Load the file: :-) |
1196 |
|
|
*/ |
1197 |
|
|
file_load(m, m->memory, name_to_load, &entrypoint, |
1198 |
dpavlin |
2 |
m->arch, &gp, &byte_order, &toc); |
1199 |
|
|
|
1200 |
dpavlin |
6 |
if (remove_after_load) { |
1201 |
|
|
debug("removing %s\n", name_to_load); |
1202 |
|
|
unlink(name_to_load); |
1203 |
|
|
} |
1204 |
|
|
|
1205 |
dpavlin |
2 |
if (byte_order != NO_BYTE_ORDER_OVERRIDE) |
1206 |
|
|
cpu->byte_order = byte_order; |
1207 |
|
|
|
1208 |
|
|
cpu->pc = entrypoint; |
1209 |
|
|
|
1210 |
|
|
switch (m->arch) { |
1211 |
dpavlin |
14 |
|
1212 |
|
|
case ARCH_ALPHA: |
1213 |
dpavlin |
18 |
/* For position-independent code: */ |
1214 |
dpavlin |
14 |
cpu->cd.alpha.r[ALPHA_T12] = cpu->pc; |
1215 |
|
|
break; |
1216 |
|
|
|
1217 |
|
|
case ARCH_ARM: |
1218 |
|
|
cpu->pc &= 0xfffffffc; |
1219 |
|
|
cpu->cd.arm.r[ARM_PC] = cpu->pc; |
1220 |
|
|
break; |
1221 |
|
|
|
1222 |
|
|
case ARCH_AVR: |
1223 |
|
|
cpu->pc &= 0xfffff; |
1224 |
|
|
if (cpu->pc & 1) { |
1225 |
|
|
fatal("AVR: lowest bit of pc set: TODO\n"); |
1226 |
|
|
exit(1); |
1227 |
|
|
} |
1228 |
|
|
break; |
1229 |
|
|
|
1230 |
|
|
case ARCH_HPPA: |
1231 |
|
|
break; |
1232 |
|
|
|
1233 |
|
|
case ARCH_I960: |
1234 |
|
|
break; |
1235 |
|
|
|
1236 |
|
|
case ARCH_IA64: |
1237 |
|
|
break; |
1238 |
|
|
|
1239 |
|
|
case ARCH_M68K: |
1240 |
|
|
break; |
1241 |
|
|
|
1242 |
dpavlin |
2 |
case ARCH_MIPS: |
1243 |
|
|
if ((cpu->pc >> 32) == 0 |
1244 |
|
|
&& (cpu->pc & 0x80000000ULL)) |
1245 |
|
|
cpu->pc |= 0xffffffff00000000ULL; |
1246 |
|
|
|
1247 |
|
|
cpu->cd.mips.gpr[MIPS_GPR_GP] = gp; |
1248 |
|
|
|
1249 |
|
|
if ((cpu->cd.mips.gpr[MIPS_GPR_GP] >> 32) == 0 && |
1250 |
|
|
(cpu->cd.mips.gpr[MIPS_GPR_GP] & 0x80000000ULL)) |
1251 |
|
|
cpu->cd.mips.gpr[MIPS_GPR_GP] |= |
1252 |
|
|
0xffffffff00000000ULL; |
1253 |
|
|
break; |
1254 |
dpavlin |
4 |
|
1255 |
dpavlin |
2 |
case ARCH_PPC: |
1256 |
dpavlin |
6 |
/* See http://www.linuxbase.org/spec/ELF/ppc64/ |
1257 |
|
|
spec/x458.html for more info. */ |
1258 |
dpavlin |
2 |
cpu->cd.ppc.gpr[2] = toc; |
1259 |
dpavlin |
6 |
/* TODO */ |
1260 |
dpavlin |
14 |
if (cpu->cd.ppc.bits == 32) |
1261 |
|
|
cpu->pc &= 0xffffffffULL; |
1262 |
dpavlin |
2 |
break; |
1263 |
dpavlin |
4 |
|
1264 |
dpavlin |
14 |
case ARCH_SH: |
1265 |
|
|
if (cpu->cd.sh.bits == 32) |
1266 |
|
|
cpu->pc &= 0xffffffffULL; |
1267 |
|
|
cpu->pc &= ~1; |
1268 |
dpavlin |
12 |
break; |
1269 |
|
|
|
1270 |
dpavlin |
2 |
case ARCH_SPARC: |
1271 |
|
|
break; |
1272 |
dpavlin |
4 |
|
1273 |
|
|
case ARCH_X86: |
1274 |
|
|
/* |
1275 |
dpavlin |
6 |
* NOTE: The toc field is used to indicate an ELF32 |
1276 |
|
|
* or ELF64 load. |
1277 |
dpavlin |
4 |
*/ |
1278 |
dpavlin |
6 |
switch (toc) { |
1279 |
|
|
case 0: /* 16-bit? TODO */ |
1280 |
dpavlin |
4 |
cpu->pc &= 0xffffffffULL; |
1281 |
dpavlin |
6 |
break; |
1282 |
|
|
case 1: /* 32-bit. */ |
1283 |
|
|
cpu->pc &= 0xffffffffULL; |
1284 |
|
|
break; |
1285 |
|
|
case 2: /* 64-bit: TODO */ |
1286 |
|
|
fatal("64-bit x86 load. TODO\n"); |
1287 |
|
|
exit(1); |
1288 |
|
|
} |
1289 |
dpavlin |
2 |
break; |
1290 |
dpavlin |
4 |
|
1291 |
dpavlin |
2 |
default: |
1292 |
|
|
fatal("emul_machine_setup(): Internal error: " |
1293 |
|
|
"Unimplemented arch %i\n", m->arch); |
1294 |
|
|
exit(1); |
1295 |
|
|
} |
1296 |
|
|
|
1297 |
|
|
/* |
1298 |
|
|
* For userland emulation, the remaining items |
1299 |
|
|
* on the command line will be passed as parameters |
1300 |
|
|
* to the emulated program, and will not be treated |
1301 |
|
|
* as filenames to load into the emulator. |
1302 |
|
|
* The program's name will be in load_names[0], and the |
1303 |
|
|
* rest of the parameters in load_names[1] and up. |
1304 |
|
|
*/ |
1305 |
|
|
if (m->userland_emul != NULL) |
1306 |
|
|
break; |
1307 |
|
|
|
1308 |
|
|
n_load --; |
1309 |
|
|
load_names ++; |
1310 |
|
|
} |
1311 |
|
|
|
1312 |
|
|
if (m->byte_order_override != NO_BYTE_ORDER_OVERRIDE) |
1313 |
|
|
cpu->byte_order = m->byte_order_override; |
1314 |
|
|
|
1315 |
|
|
/* Same byte order and entrypoint for all CPUs: */ |
1316 |
|
|
for (i=0; i<m->ncpus; i++) |
1317 |
|
|
if (i != m->bootstrap_cpu) { |
1318 |
|
|
m->cpus[i]->byte_order = cpu->byte_order; |
1319 |
|
|
m->cpus[i]->pc = cpu->pc; |
1320 |
|
|
} |
1321 |
|
|
|
1322 |
|
|
if (m->userland_emul != NULL) |
1323 |
|
|
useremul_setup(cpu, n_load, load_names); |
1324 |
|
|
|
1325 |
|
|
/* Startup the bootstrap CPU: */ |
1326 |
|
|
cpu->bootstrap_cpu_flag = 1; |
1327 |
|
|
cpu->running = 1; |
1328 |
|
|
|
1329 |
|
|
/* ... or pause all CPUs, if start_paused is set: */ |
1330 |
|
|
if (m->start_paused) { |
1331 |
|
|
for (i=0; i<m->ncpus; i++) |
1332 |
|
|
m->cpus[i]->running = 0; |
1333 |
|
|
} |
1334 |
|
|
|
1335 |
|
|
/* Add PC dump points: */ |
1336 |
|
|
add_dump_points(m); |
1337 |
|
|
|
1338 |
|
|
/* TODO: This is MIPS-specific! */ |
1339 |
|
|
if (m->machine_type == MACHINE_DEC && |
1340 |
|
|
cpu->cd.mips.cpu_type.mmu_model == MMU3K) |
1341 |
|
|
add_symbol_name(&m->symbol_context, |
1342 |
dpavlin |
12 |
0x9fff0000, 0x10000, "r2k3k_cache", 0, 0); |
1343 |
dpavlin |
2 |
|
1344 |
|
|
symbol_recalc_sizes(&m->symbol_context); |
1345 |
|
|
|
1346 |
|
|
if (m->max_random_cycles_per_chunk > 0) |
1347 |
|
|
debug("using random cycle chunks (1 to %i cycles)\n", |
1348 |
|
|
m->max_random_cycles_per_chunk); |
1349 |
|
|
|
1350 |
|
|
/* Special hack for ARC/SGI emulation: */ |
1351 |
|
|
if ((m->machine_type == MACHINE_ARC || |
1352 |
|
|
m->machine_type == MACHINE_SGI) && m->prom_emulation) |
1353 |
|
|
add_arc_components(m); |
1354 |
|
|
|
1355 |
|
|
debug("starting cpu%i at ", m->bootstrap_cpu); |
1356 |
|
|
switch (m->arch) { |
1357 |
dpavlin |
14 |
|
1358 |
|
|
case ARCH_ARM: |
1359 |
|
|
/* ARM cpus aren't 64-bit: */ |
1360 |
|
|
debug("0x%08x", (int)entrypoint); |
1361 |
|
|
break; |
1362 |
|
|
|
1363 |
|
|
case ARCH_AVR: |
1364 |
|
|
/* Atmel AVR uses a 16-bit or 22-bit program counter: */ |
1365 |
|
|
debug("0x%04x", (int)entrypoint); |
1366 |
|
|
break; |
1367 |
|
|
|
1368 |
dpavlin |
2 |
case ARCH_MIPS: |
1369 |
dpavlin |
12 |
if (cpu->is_32bit) { |
1370 |
dpavlin |
2 |
debug("0x%08x", (int)m->cpus[ |
1371 |
|
|
m->bootstrap_cpu]->pc); |
1372 |
|
|
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
1373 |
|
|
debug(" (gp=0x%08x)", (int)m->cpus[ |
1374 |
|
|
m->bootstrap_cpu]->cd.mips.gpr[ |
1375 |
|
|
MIPS_GPR_GP]); |
1376 |
|
|
} else { |
1377 |
|
|
debug("0x%016llx", (long long)m->cpus[ |
1378 |
|
|
m->bootstrap_cpu]->pc); |
1379 |
|
|
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
1380 |
|
|
debug(" (gp=0x%016llx)", (long long) |
1381 |
|
|
cpu->cd.mips.gpr[MIPS_GPR_GP]); |
1382 |
|
|
} |
1383 |
|
|
break; |
1384 |
dpavlin |
14 |
|
1385 |
dpavlin |
2 |
case ARCH_PPC: |
1386 |
|
|
if (cpu->cd.ppc.bits == 32) |
1387 |
|
|
debug("0x%08x", (int)entrypoint); |
1388 |
|
|
else |
1389 |
|
|
debug("0x%016llx", (long long)entrypoint); |
1390 |
|
|
break; |
1391 |
dpavlin |
14 |
|
1392 |
dpavlin |
4 |
case ARCH_X86: |
1393 |
dpavlin |
6 |
debug("0x%04x:0x%llx", cpu->cd.x86.s[X86_S_CS], |
1394 |
|
|
(long long)cpu->pc); |
1395 |
dpavlin |
4 |
break; |
1396 |
dpavlin |
14 |
|
1397 |
dpavlin |
2 |
default: |
1398 |
dpavlin |
4 |
debug("0x%016llx", (long long)cpu->pc); |
1399 |
dpavlin |
2 |
} |
1400 |
|
|
debug("\n"); |
1401 |
|
|
|
1402 |
|
|
debug_indentation(-iadd); |
1403 |
|
|
} |
1404 |
|
|
|
1405 |
|
|
|
1406 |
|
|
/* |
1407 |
|
|
* emul_dumpinfo(): |
1408 |
|
|
* |
1409 |
|
|
* Dump info about all machines in an emul. |
1410 |
|
|
*/ |
1411 |
|
|
void emul_dumpinfo(struct emul *e) |
1412 |
|
|
{ |
1413 |
|
|
int j, nm, iadd = 4; |
1414 |
|
|
|
1415 |
|
|
if (e->net != NULL) |
1416 |
|
|
net_dumpinfo(e->net); |
1417 |
|
|
|
1418 |
|
|
nm = e->n_machines; |
1419 |
|
|
for (j=0; j<nm; j++) { |
1420 |
|
|
debug("machine %i: \"%s\"\n", j, e->machines[j]->name); |
1421 |
|
|
debug_indentation(iadd); |
1422 |
|
|
machine_dumpinfo(e->machines[j]); |
1423 |
|
|
debug_indentation(-iadd); |
1424 |
|
|
} |
1425 |
|
|
} |
1426 |
|
|
|
1427 |
|
|
|
1428 |
|
|
/* |
1429 |
|
|
* emul_simple_init(): |
1430 |
|
|
* |
1431 |
|
|
* For a normal setup: |
1432 |
|
|
* |
1433 |
|
|
* o) Initialize a network. |
1434 |
|
|
* o) Initialize one machine. |
1435 |
|
|
* |
1436 |
|
|
* For a userland-only setup: |
1437 |
|
|
* |
1438 |
|
|
* o) Initialize a "pseudo"-machine. |
1439 |
|
|
*/ |
1440 |
|
|
void emul_simple_init(struct emul *emul) |
1441 |
|
|
{ |
1442 |
|
|
int iadd=4; |
1443 |
|
|
struct machine *m; |
1444 |
|
|
|
1445 |
|
|
if (emul->n_machines != 1) { |
1446 |
|
|
fprintf(stderr, "emul_simple_init(): n_machines != 1\n"); |
1447 |
|
|
exit(1); |
1448 |
|
|
} |
1449 |
|
|
|
1450 |
|
|
m = emul->machines[0]; |
1451 |
|
|
|
1452 |
|
|
if (m->userland_emul == NULL) { |
1453 |
|
|
debug("Simple setup...\n"); |
1454 |
|
|
debug_indentation(iadd); |
1455 |
|
|
|
1456 |
dpavlin |
10 |
/* Create a simple network: */ |
1457 |
dpavlin |
2 |
emul->net = net_init(emul, NET_INIT_FLAG_GATEWAY, |
1458 |
dpavlin |
10 |
"10.0.0.0", 8, NULL, 0, 0); |
1459 |
dpavlin |
2 |
} else { |
1460 |
|
|
/* Userland pseudo-machine: */ |
1461 |
|
|
debug("Syscall emulation (userland-only) setup...\n"); |
1462 |
|
|
debug_indentation(iadd); |
1463 |
|
|
} |
1464 |
|
|
|
1465 |
|
|
/* Create the machine: */ |
1466 |
|
|
emul_machine_setup(m, extra_argc, extra_argv, 0, NULL); |
1467 |
|
|
|
1468 |
|
|
debug_indentation(-iadd); |
1469 |
|
|
} |
1470 |
|
|
|
1471 |
|
|
|
1472 |
|
|
/* |
1473 |
|
|
* emul_create_from_configfile(): |
1474 |
|
|
* |
1475 |
|
|
* Create an emul struct by reading settings from a configuration file. |
1476 |
|
|
*/ |
1477 |
|
|
struct emul *emul_create_from_configfile(char *fname) |
1478 |
|
|
{ |
1479 |
|
|
int iadd = 4; |
1480 |
|
|
struct emul *e = emul_new(fname); |
1481 |
|
|
FILE *f; |
1482 |
|
|
char buf[128]; |
1483 |
|
|
size_t len; |
1484 |
|
|
|
1485 |
|
|
debug("Creating emulation from configfile \"%s\":\n", fname); |
1486 |
|
|
debug_indentation(iadd); |
1487 |
|
|
|
1488 |
|
|
f = fopen(fname, "r"); |
1489 |
|
|
if (f == NULL) { |
1490 |
|
|
perror(fname); |
1491 |
|
|
exit(1); |
1492 |
|
|
} |
1493 |
|
|
|
1494 |
|
|
/* Read header: (must be !!gxemul) */ |
1495 |
|
|
len = fread(buf, 1, 8, f); |
1496 |
|
|
if (len != 8 || strncmp(buf, "!!gxemul", 8) != 0) { |
1497 |
|
|
fprintf(stderr, "%s: must start with '!!gxemul'\n", fname); |
1498 |
|
|
exit(1); |
1499 |
|
|
} |
1500 |
|
|
|
1501 |
|
|
/* Restart from beginning: */ |
1502 |
|
|
rewind(f); |
1503 |
|
|
|
1504 |
|
|
emul_parse_config(e, f); |
1505 |
|
|
|
1506 |
|
|
fclose(f); |
1507 |
|
|
debug_indentation(-iadd); |
1508 |
|
|
return e; |
1509 |
|
|
} |
1510 |
|
|
|
1511 |
|
|
|
1512 |
|
|
/* |
1513 |
|
|
* emul_run(): |
1514 |
|
|
* |
1515 |
|
|
* o) Set up things needed before running emulations. |
1516 |
|
|
* |
1517 |
|
|
* o) Run emulations (one or more, in parallel). |
1518 |
|
|
* |
1519 |
|
|
* o) De-initialize things. |
1520 |
|
|
*/ |
1521 |
|
|
void emul_run(struct emul **emuls, int n_emuls) |
1522 |
|
|
{ |
1523 |
|
|
struct emul *e; |
1524 |
|
|
int i = 0, j, go = 1, n, anything; |
1525 |
|
|
|
1526 |
|
|
if (n_emuls < 1) { |
1527 |
|
|
fprintf(stderr, "emul_run(): no thing to do\n"); |
1528 |
|
|
return; |
1529 |
|
|
} |
1530 |
|
|
|
1531 |
|
|
atexit(fix_console); |
1532 |
|
|
|
1533 |
|
|
i = 79; |
1534 |
|
|
while (i-- > 0) |
1535 |
|
|
debug("-"); |
1536 |
|
|
debug("\n\n"); |
1537 |
|
|
|
1538 |
|
|
/* Initialize the interactive debugger: */ |
1539 |
|
|
debugger_init(emuls, n_emuls); |
1540 |
|
|
|
1541 |
|
|
/* |
1542 |
|
|
* console_init_main() makes sure that the terminal is in a |
1543 |
|
|
* reasonable state. |
1544 |
|
|
* |
1545 |
|
|
* The SIGINT handler is for CTRL-C (enter the interactive debugger). |
1546 |
|
|
* |
1547 |
|
|
* The SIGCONT handler is invoked whenever the user presses CTRL-Z |
1548 |
|
|
* (or sends SIGSTOP) and then continues. It makes sure that the |
1549 |
|
|
* terminal is in an expected state. |
1550 |
|
|
*/ |
1551 |
|
|
console_init_main(emuls[0]); /* TODO: what is a good argument? */ |
1552 |
|
|
signal(SIGINT, debugger_activate); |
1553 |
|
|
signal(SIGCONT, console_sigcont); |
1554 |
|
|
|
1555 |
|
|
/* Not in verbose mode? Then set quiet_mode. */ |
1556 |
|
|
if (!verbose) |
1557 |
|
|
quiet_mode = 1; |
1558 |
|
|
|
1559 |
|
|
/* Initialize all CPUs in all machines in all emulations: */ |
1560 |
|
|
for (i=0; i<n_emuls; i++) { |
1561 |
|
|
e = emuls[i]; |
1562 |
|
|
if (e == NULL) |
1563 |
|
|
continue; |
1564 |
|
|
for (j=0; j<e->n_machines; j++) |
1565 |
dpavlin |
12 |
cpu_run_init(e->machines[j]); |
1566 |
dpavlin |
2 |
} |
1567 |
|
|
|
1568 |
dpavlin |
12 |
/* TODO: Generalize: */ |
1569 |
|
|
if (emuls[0]->machines[0]->show_trace_tree) |
1570 |
|
|
cpu_functioncall_trace(emuls[0]->machines[0]->cpus[0], |
1571 |
|
|
emuls[0]->machines[0]->cpus[0]->pc); |
1572 |
|
|
|
1573 |
dpavlin |
2 |
/* |
1574 |
|
|
* MAIN LOOP: |
1575 |
|
|
* |
1576 |
|
|
* Run all emulations in parallel, running each machine in |
1577 |
|
|
* each emulation. |
1578 |
|
|
*/ |
1579 |
|
|
while (go) { |
1580 |
|
|
go = 0; |
1581 |
|
|
|
1582 |
|
|
x11_check_event(emuls, n_emuls); |
1583 |
|
|
|
1584 |
|
|
for (i=0; i<n_emuls; i++) { |
1585 |
|
|
e = emuls[i]; |
1586 |
|
|
if (e == NULL) |
1587 |
|
|
continue; |
1588 |
|
|
|
1589 |
|
|
for (j=0; j<e->n_machines; j++) { |
1590 |
|
|
/* TODO: cpu_run() is a strange name, since |
1591 |
|
|
there can be multiple cpus in a machine */ |
1592 |
|
|
anything = cpu_run(e, e->machines[j]); |
1593 |
|
|
if (anything) |
1594 |
|
|
go = 1; |
1595 |
|
|
} |
1596 |
|
|
} |
1597 |
|
|
} |
1598 |
|
|
|
1599 |
|
|
/* Deinitialize all CPUs in all machines in all emulations: */ |
1600 |
|
|
for (i=0; i<n_emuls; i++) { |
1601 |
|
|
e = emuls[i]; |
1602 |
|
|
if (e == NULL) |
1603 |
|
|
continue; |
1604 |
|
|
for (j=0; j<e->n_machines; j++) |
1605 |
dpavlin |
12 |
cpu_run_deinit(e->machines[j]); |
1606 |
dpavlin |
2 |
} |
1607 |
|
|
|
1608 |
|
|
/* force_debugger_at_exit flag set? Then enter the debugger: */ |
1609 |
|
|
if (force_debugger_at_exit) { |
1610 |
|
|
quiet_mode = 0; |
1611 |
|
|
debugger_reset(); |
1612 |
|
|
debugger(); |
1613 |
|
|
} |
1614 |
|
|
|
1615 |
|
|
/* Any machine using X11? Then we should wait before exiting: */ |
1616 |
|
|
n = 0; |
1617 |
|
|
for (i=0; i<n_emuls; i++) |
1618 |
|
|
for (j=0; j<emuls[i]->n_machines; j++) |
1619 |
|
|
if (emuls[i]->machines[j]->use_x11) |
1620 |
|
|
n++; |
1621 |
|
|
if (n > 0) { |
1622 |
|
|
printf("Press enter to quit.\n"); |
1623 |
|
|
while (!console_charavail(MAIN_CONSOLE)) { |
1624 |
|
|
x11_check_event(emuls, n_emuls); |
1625 |
|
|
usleep(1); |
1626 |
|
|
} |
1627 |
|
|
console_readchar(MAIN_CONSOLE); |
1628 |
|
|
} |
1629 |
|
|
|
1630 |
|
|
console_deinit(); |
1631 |
|
|
} |
1632 |
|
|
|