1 |
/* |
/* |
2 |
* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
* Copyright (C) 2003-2007 Anders Gavare. All rights reserved. |
3 |
* |
* |
4 |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
5 |
* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: emul.c,v 1.258 2006/07/20 21:52:59 debug Exp $ |
* $Id: emul.c,v 1.282 2007/04/11 15:15:31 debug Exp $ |
29 |
* |
* |
30 |
* Emulation startup and misc. routines. |
* Emulation startup and misc. routines. |
31 |
*/ |
*/ |
51 |
#include "mips_cpu_types.h" |
#include "mips_cpu_types.h" |
52 |
#include "misc.h" |
#include "misc.h" |
53 |
#include "net.h" |
#include "net.h" |
54 |
|
#include "settings.h" |
55 |
#include "sgi_arcbios.h" |
#include "sgi_arcbios.h" |
56 |
|
#include "timer.h" |
57 |
#include "x11.h" |
#include "x11.h" |
58 |
|
|
59 |
|
|
72 |
extern struct emul *debugger_emul; |
extern struct emul *debugger_emul; |
73 |
extern struct diskimage *diskimages[]; |
extern struct diskimage *diskimages[]; |
74 |
|
|
|
static char *diskimage_types[] = DISKIMAGE_TYPES; |
|
|
|
|
75 |
|
|
76 |
static void print_separator(void) |
static void print_separator(void) |
77 |
{ |
{ |
144 |
*/ |
*/ |
145 |
static void fix_console(void) |
static void fix_console(void) |
146 |
{ |
{ |
147 |
console_deinit(); |
console_deinit_main(); |
148 |
} |
} |
149 |
|
|
150 |
|
|
151 |
/* |
/* |
152 |
* iso_load_bootblock(): |
* emul_new(): |
|
* |
|
|
* Try to load a kernel from an ISO 9660 disk image. iso_type is 1 for |
|
|
* "CD001" (standard), 2 for "CDW01" (ECMA), and 3 for "CDROM" (Sierra). |
|
|
* |
|
|
* TODO: This function uses too many magic offsets and so on; it should be |
|
|
* cleaned up some day. |
|
153 |
* |
* |
154 |
* Returns 1 on success, 0 on failure. |
* Returns a reasonably initialized struct emul. |
155 |
*/ |
*/ |
156 |
static int iso_load_bootblock(struct machine *m, struct cpu *cpu, |
struct emul *emul_new(char *name, int id) |
|
int disk_id, int disk_type, int iso_type, unsigned char *buf, |
|
|
int *n_loadp, char ***load_namesp) |
|
157 |
{ |
{ |
158 |
char str[35]; |
struct emul *e; |
159 |
int filenr, i, ofs, dirlen, res = 0, res2, iadd = DEBUG_INDENTATION; |
e = malloc(sizeof(struct emul)); |
160 |
int found_dir; |
if (e == NULL) { |
161 |
uint64_t dirofs; |
fprintf(stderr, "out of memory in emul_new()\n"); |
|
uint64_t fileofs, filelen; |
|
|
unsigned char *dirbuf = NULL, *dp; |
|
|
unsigned char *match_entry = NULL; |
|
|
char *p, *filename_orig; |
|
|
char *filename = strdup(cpu->machine->boot_kernel_filename); |
|
|
unsigned char *filebuf = NULL; |
|
|
char *tmpfname = NULL; |
|
|
char **new_array; |
|
|
int tmpfile_handle; |
|
|
|
|
|
if (filename == NULL) { |
|
|
fatal("out of memory\n"); |
|
|
exit(1); |
|
|
} |
|
|
filename_orig = filename; |
|
|
|
|
|
debug("ISO9660 boot:\n"); |
|
|
debug_indentation(iadd); |
|
|
|
|
|
/* Volume ID: */ |
|
|
ofs = iso_type == 3? 48 : 40; |
|
|
memcpy(str, buf + ofs, sizeof(str)); |
|
|
str[32] = '\0'; i = 31; |
|
|
while (i >= 0 && str[i]==' ') |
|
|
str[i--] = '\0'; |
|
|
if (str[0]) |
|
|
debug("\"%s\"", str); |
|
|
else { |
|
|
/* System ID: */ |
|
|
ofs = iso_type == 3? 16 : 8; |
|
|
memcpy(str, buf + ofs, sizeof(str)); |
|
|
str[32] = '\0'; i = 31; |
|
|
while (i >= 0 && str[i]==' ') |
|
|
str[i--] = '\0'; |
|
|
if (str[0]) |
|
|
debug("\"%s\"", str); |
|
|
else |
|
|
debug("(no ID)"); |
|
|
} |
|
|
|
|
|
debug(":%s\n", filename); |
|
|
|
|
|
|
|
|
/* |
|
|
* Traverse the directory structure to find the kernel. |
|
|
*/ |
|
|
|
|
|
dirlen = buf[0x84] + 256*buf[0x85] + 65536*buf[0x86]; |
|
|
if (dirlen != buf[0x8b] + 256*buf[0x8a] + 65536*buf[0x89]) |
|
|
fatal("WARNING: Root directory length mismatch?\n"); |
|
|
|
|
|
dirofs = (int64_t)(buf[0x8c] + (buf[0x8d] << 8) + (buf[0x8e] << 16) + |
|
|
((uint64_t)buf[0x8f] << 24)) * 2048; |
|
|
|
|
|
/* debug("root = %i bytes at 0x%llx\n", dirlen, (long long)dirofs); */ |
|
|
|
|
|
dirbuf = malloc(dirlen); |
|
|
if (dirbuf == NULL) { |
|
|
fatal("out of memory in iso_load_bootblock()\n"); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, dirbuf, |
|
|
dirlen); |
|
|
if (!res2) { |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
found_dir = 1; /* Assume root dir */ |
|
|
dp = dirbuf; filenr = 1; |
|
|
p = NULL; |
|
|
while (dp < dirbuf + dirlen) { |
|
|
size_t i, nlen = dp[0]; |
|
|
int x = dp[2] + (dp[3] << 8) + (dp[4] << 16) + |
|
|
((uint64_t)dp[5] << 24); |
|
|
int y = dp[6] + (dp[7] << 8); |
|
|
char direntry[65]; |
|
|
|
|
|
dp += 8; |
|
|
|
|
|
/* |
|
|
* As long as there is an \ or / in the filename, then we |
|
|
* have not yet found the directory. |
|
|
*/ |
|
|
p = strchr(filename, '/'); |
|
|
if (p == NULL) |
|
|
p = strchr(filename, '\\'); |
|
|
|
|
|
/* debug("%i%s: %i, %i, \"", filenr, filenr == found_dir? |
|
|
" [CURRENT]" : "", x, y); */ |
|
|
for (i=0; i<nlen && i<sizeof(direntry)-1; i++) |
|
|
if (dp[i]) { |
|
|
direntry[i] = dp[i]; |
|
|
/* debug("%c", dp[i]); */ |
|
|
} else |
|
|
break; |
|
|
/* debug("\"\n"); */ |
|
|
direntry[i] = '\0'; |
|
|
|
|
|
/* A directory name match? */ |
|
|
if (p != NULL && strncasecmp(filename, direntry, nlen) == 0 |
|
|
&& nlen == (size_t)p - (size_t)filename && found_dir == y) { |
|
|
found_dir = filenr; |
|
|
filename = p+1; |
|
|
dirofs = 2048 * (int64_t)x; |
|
|
} |
|
|
|
|
|
dp += nlen; |
|
|
|
|
|
/* 16-bit aligned lenght: */ |
|
|
if (nlen & 1) |
|
|
dp ++; |
|
|
|
|
|
filenr ++; |
|
|
} |
|
|
|
|
|
p = strchr(filename, '/'); |
|
|
if (p == NULL) |
|
|
p = strchr(filename, '\\'); |
|
|
|
|
|
if (p != NULL) { |
|
|
char *blah = filename_orig; |
|
|
|
|
|
fatal("could not find '%s' in /", filename); |
|
|
|
|
|
/* Print the first part of the filename: */ |
|
|
while (blah != filename) |
|
|
fatal("%c", *blah++); |
|
|
|
|
|
fatal("\n"); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
/* debug("dirofs = 0x%llx\n", (long long)dirofs); */ |
|
|
|
|
|
/* Free the old dirbuf, and allocate a new one: */ |
|
|
free(dirbuf); |
|
|
dirbuf = malloc(512); |
|
|
if (dirbuf == NULL) { |
|
|
fatal("out of memory in iso_load_bootblock()\n"); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
for (;;) { |
|
|
size_t len, i; |
|
|
|
|
|
/* Too close to another sector? Then realign. */ |
|
|
if ((dirofs & 2047) + 70 > 2047) { |
|
|
dirofs = (dirofs | 2047) + 1; |
|
|
/* debug("realign dirofs = 0x%llx\n", dirofs); */ |
|
|
} |
|
|
|
|
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, |
|
|
dirbuf, 256); |
|
|
if (!res2) { |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
dp = dirbuf; |
|
|
len = dp[0]; |
|
|
if (len < 2) |
|
|
break; |
|
|
|
|
|
/* |
|
|
* TODO: Actually parse the directory entry! |
|
|
* |
|
|
* Haha, this must be rewritten. |
|
|
*/ |
|
|
for (i=32; i<len; i++) { |
|
|
if (i < len - strlen(filename)) |
|
|
if (strncasecmp(filename, (char *)dp + i, |
|
|
strlen(filename)) == 0) { |
|
|
/* The filename was found somewhere |
|
|
in the directory entry. */ |
|
|
if (match_entry != NULL) { |
|
|
fatal("TODO: I'm too lazy to" |
|
|
" implement a correct " |
|
|
"directory parser right " |
|
|
"now... (BUG)\n"); |
|
|
exit(1); |
|
|
} |
|
|
match_entry = malloc(512); |
|
|
if (match_entry == NULL) { |
|
|
fatal("out of memory\n"); |
|
|
exit(1); |
|
|
} |
|
|
memcpy(match_entry, dp, 512); |
|
|
break; |
|
|
} |
|
|
} |
|
|
|
|
|
dirofs += len; |
|
|
} |
|
|
|
|
|
if (match_entry == NULL) { |
|
|
char *blah = filename_orig; |
|
|
|
|
|
fatal("could not find '%s' in /", filename); |
|
|
|
|
|
/* Print the first part of the filename: */ |
|
|
while (blah != filename) |
|
|
fatal("%c", *blah++); |
|
|
|
|
|
fatal("\n"); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
fileofs = match_entry[2] + (match_entry[3] << 8) + |
|
|
(match_entry[4] << 16) + ((uint64_t)match_entry[5] << 24); |
|
|
filelen = match_entry[10] + (match_entry[11] << 8) + |
|
|
(match_entry[12] << 16) + ((uint64_t)match_entry[13] << 24); |
|
|
fileofs *= 2048; |
|
|
|
|
|
/* debug("filelen=%llx fileofs=%llx\n", (long long)filelen, |
|
|
(long long)fileofs); */ |
|
|
|
|
|
filebuf = malloc(filelen); |
|
|
if (filebuf == NULL) { |
|
|
fatal("could not allocate %lli bytes to read the file" |
|
|
" from the disk image!\n", (long long)filelen); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
tmpfname = strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
|
|
|
|
|
res2 = diskimage_access(m, disk_id, disk_type, 0, fileofs, filebuf, |
|
|
filelen); |
|
|
if (!res2) { |
|
|
fatal("could not read the file from the disk image!\n"); |
|
|
goto ret; |
|
|
} |
|
|
|
|
|
tmpfile_handle = mkstemp(tmpfname); |
|
|
if (tmpfile_handle < 0) { |
|
|
fatal("could not create %s\n", tmpfname); |
|
162 |
exit(1); |
exit(1); |
163 |
} |
} |
|
write(tmpfile_handle, filebuf, filelen); |
|
|
close(tmpfile_handle); |
|
164 |
|
|
165 |
debug("extracted %lli bytes into %s\n", (long long)filelen, tmpfname); |
memset(e, 0, sizeof(struct emul)); |
166 |
|
|
167 |
/* Add the temporary filename to the load_namesp array: */ |
e->path = malloc(15); |
168 |
(*n_loadp)++; |
if (e->path == NULL) { |
169 |
new_array = malloc(sizeof(char *) * (*n_loadp)); |
fprintf(stderr, "out of memory\n"); |
|
if (new_array == NULL) { |
|
|
fatal("out of memory\n"); |
|
170 |
exit(1); |
exit(1); |
171 |
} |
} |
172 |
memcpy(new_array, *load_namesp, sizeof(char *) * (*n_loadp)); |
snprintf(e->path, 15, "emul[%i]", id); |
|
*load_namesp = new_array; |
|
|
|
|
|
/* This adds a Backspace char in front of the filename; this |
|
|
is a special hack which causes the file to be removed once |
|
|
it has been loaded. */ |
|
|
tmpfname = realloc(tmpfname, strlen(tmpfname) + 2); |
|
|
memmove(tmpfname + 1, tmpfname, strlen(tmpfname) + 1); |
|
|
tmpfname[0] = 8; |
|
|
|
|
|
(*load_namesp)[*n_loadp - 1] = tmpfname; |
|
|
|
|
|
res = 1; |
|
173 |
|
|
174 |
ret: |
e->settings = settings_new(); |
|
if (dirbuf != NULL) |
|
|
free(dirbuf); |
|
175 |
|
|
176 |
if (filebuf != NULL) |
settings_add(e->settings, "n_machines", 0, |
177 |
free(filebuf); |
SETTINGS_TYPE_INT, SETTINGS_FORMAT_DECIMAL, |
178 |
|
(void *) &e->n_machines); |
|
if (match_entry != NULL) |
|
|
free(match_entry); |
|
|
|
|
|
free(filename_orig); |
|
|
|
|
|
debug_indentation(-iadd); |
|
|
return res; |
|
|
} |
|
179 |
|
|
180 |
|
/* TODO: More settings? */ |
181 |
|
|
182 |
/* |
/* Sane default values: */ |
183 |
* apple_load_bootblock(): |
e->n_machines = 0; |
184 |
* |
e->next_serial_nr = 1; |
|
* Try to load a kernel from a disk image with an Apple Partition Table. |
|
|
* |
|
|
* TODO: This function uses too many magic offsets and so on; it should be |
|
|
* cleaned up some day. See http://www.awprofessional.com/articles/ |
|
|
* article.asp?p=376123&seqNum=3&rl=1 for some info on the Apple |
|
|
* partition format. |
|
|
* |
|
|
* Returns 1 on success, 0 on failure. |
|
|
*/ |
|
|
static int apple_load_bootblock(struct machine *m, struct cpu *cpu, |
|
|
int disk_id, int disk_type, int *n_loadp, char ***load_namesp) |
|
|
{ |
|
|
unsigned char buf[0x8000]; |
|
|
int res, partnr, n_partitions = 0, n_hfs_partitions = 0; |
|
|
uint64_t hfs_start, hfs_length; |
|
|
|
|
|
res = diskimage_access(m, disk_id, disk_type, 0, 0x0, buf, sizeof(buf)); |
|
|
if (!res) { |
|
|
fatal("apple_load_bootblock: couldn't read the disk " |
|
|
"image. Aborting.\n"); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
partnr = 0; |
|
|
do { |
|
|
int start, length; |
|
|
int ofs = 0x200 * (partnr + 1); |
|
|
if (partnr == 0) |
|
|
n_partitions = buf[ofs + 7]; |
|
|
start = ((uint64_t)buf[ofs + 8] << 24) + (buf[ofs + 9] << 16) + |
|
|
(buf[ofs + 10] << 8) + buf[ofs + 11]; |
|
|
length = ((uint64_t)buf[ofs+12] << 24) + (buf[ofs + 13] << 16) + |
|
|
(buf[ofs + 14] << 8) + buf[ofs + 15]; |
|
|
|
|
|
debug("partition %i: '%s', type '%s', start %i, length %i\n", |
|
|
partnr, buf + ofs + 0x10, buf + ofs + 0x30, |
|
|
start, length); |
|
|
|
|
|
if (strcmp((char *)buf + ofs + 0x30, "Apple_HFS") == 0) { |
|
|
n_hfs_partitions ++; |
|
|
hfs_start = 512 * start; |
|
|
hfs_length = 512 * length; |
|
|
} |
|
|
|
|
|
/* Any more partitions? */ |
|
|
partnr ++; |
|
|
} while (partnr < n_partitions); |
|
|
|
|
|
if (n_hfs_partitions == 0) { |
|
|
fatal("Error: No HFS partition found! TODO\n"); |
|
|
return 0; |
|
|
} |
|
|
if (n_hfs_partitions >= 2) { |
|
|
fatal("Error: Too many HFS partitions found! TODO\n"); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
return 0; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* load_bootblock(): |
|
|
* |
|
|
* For some emulation modes, it is possible to boot from a harddisk image by |
|
|
* loading a bootblock from a specific disk offset into memory, and executing |
|
|
* that, instead of requiring a separate kernel file. It is then up to the |
|
|
* bootblock to load a kernel. |
|
|
* |
|
|
* Returns 1 on success, 0 on failure. |
|
|
*/ |
|
|
static int load_bootblock(struct machine *m, struct cpu *cpu, |
|
|
int *n_loadp, char ***load_namesp) |
|
|
{ |
|
|
int boot_disk_id, boot_disk_type = 0, n_blocks, res, readofs, |
|
|
iso_type, retval = 0; |
|
|
unsigned char minibuf[0x20]; |
|
|
unsigned char *bootblock_buf; |
|
|
uint64_t bootblock_offset; |
|
|
uint64_t bootblock_loadaddr, bootblock_pc; |
|
|
|
|
|
boot_disk_id = diskimage_bootdev(m, &boot_disk_type); |
|
|
if (boot_disk_id < 0) |
|
|
return 0; |
|
|
|
|
|
switch (m->machine_type) { |
|
|
case MACHINE_PMAX: |
|
|
/* |
|
|
* The first few bytes of a disk contains information about |
|
|
* where the bootblock(s) are located. (These are all 32-bit |
|
|
* little-endian words.) |
|
|
* |
|
|
* Offset 0x10 = load address |
|
|
* 0x14 = initial PC value |
|
|
* 0x18 = nr of 512-byte blocks to read |
|
|
* 0x1c = offset on disk to where the bootblocks |
|
|
* are (in 512-byte units) |
|
|
* 0x20 = nr of blocks to read... |
|
|
* 0x24 = offset... |
|
|
* |
|
|
* nr of blocks to read and offset are repeated until nr of |
|
|
* blocks to read is zero. |
|
|
*/ |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
|
|
minibuf, sizeof(minibuf)); |
|
|
|
|
|
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
|
|
+ (minibuf[0x12] << 16) + ((uint64_t)minibuf[0x13] << 24); |
|
|
|
|
|
/* Convert loadaddr to uncached: */ |
|
|
if ((bootblock_loadaddr & 0xf0000000ULL) != 0x80000000 && |
|
|
(bootblock_loadaddr & 0xf0000000ULL) != 0xa0000000) |
|
|
fatal("\nWARNING! Weird load address 0x%08x.\n\n", |
|
|
(int)bootblock_loadaddr); |
|
|
bootblock_loadaddr &= 0x0fffffffULL; |
|
|
bootblock_loadaddr |= 0xffffffffa0000000ULL; |
|
|
|
|
|
bootblock_pc = minibuf[0x14] + (minibuf[0x15] << 8) |
|
|
+ (minibuf[0x16] << 16) + ((uint64_t)minibuf[0x17] << 24); |
|
|
|
|
|
bootblock_pc &= 0x0fffffffULL; |
|
|
bootblock_pc |= 0xffffffffa0000000ULL; |
|
|
cpu->pc = bootblock_pc; |
|
|
|
|
|
debug("DEC boot: loadaddr=0x%08x, pc=0x%08x", |
|
|
(int)bootblock_loadaddr, (int)bootblock_pc); |
|
|
|
|
|
readofs = 0x18; |
|
|
|
|
|
for (;;) { |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
|
|
0, readofs, minibuf, sizeof(minibuf)); |
|
|
if (!res) { |
|
|
fatal("Couldn't read the disk image. " |
|
|
"Aborting.\n"); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
n_blocks = minibuf[0] + (minibuf[1] << 8) |
|
|
+ (minibuf[2] << 16) + ((uint64_t)minibuf[3] << 24); |
|
|
|
|
|
bootblock_offset = (minibuf[4] + (minibuf[5] << 8) + |
|
|
(minibuf[6]<<16) + ((uint64_t)minibuf[7]<<24)) * 512; |
|
|
|
|
|
if (n_blocks < 1) |
|
|
break; |
|
|
|
|
|
debug(readofs == 0x18? ": %i" : " + %i", n_blocks); |
|
|
|
|
|
if (n_blocks * 512 > 65536) |
|
|
fatal("\nWARNING! Unusually large bootblock " |
|
|
"(%i bytes)\n\n", n_blocks * 512); |
|
|
|
|
|
bootblock_buf = malloc(n_blocks * 512); |
|
|
if (bootblock_buf == NULL) { |
|
|
fprintf(stderr, "out of memory in " |
|
|
"load_bootblock()\n"); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
|
|
0, bootblock_offset, bootblock_buf, n_blocks * 512); |
|
|
if (!res) { |
|
|
fatal("WARNING: could not load bootblocks from" |
|
|
" disk offset 0x%llx\n", |
|
|
(long long)bootblock_offset); |
|
|
} |
|
|
|
|
|
store_buf(cpu, bootblock_loadaddr, |
|
|
(char *)bootblock_buf, n_blocks * 512); |
|
|
|
|
|
bootblock_loadaddr += 512*n_blocks; |
|
|
free(bootblock_buf); |
|
|
readofs += 8; |
|
|
} |
|
|
|
|
|
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
|
|
return 1; |
|
|
|
|
|
case MACHINE_X86: |
|
|
/* TODO: "El Torito" etc? */ |
|
|
if (diskimage_is_a_cdrom(cpu->machine, boot_disk_id, |
|
|
boot_disk_type)) |
|
|
break; |
|
185 |
|
|
186 |
bootblock_buf = malloc(512); |
if (name != NULL) { |
187 |
if (bootblock_buf == NULL) { |
e->name = strdup(name); |
188 |
fprintf(stderr, "Out of memory.\n"); |
if (e->name == NULL) { |
189 |
|
fprintf(stderr, "out of memory in emul_new()\n"); |
190 |
exit(1); |
exit(1); |
191 |
} |
} |
192 |
|
|
193 |
debug("loading PC bootsector from %s id %i\n", |
settings_add(e->settings, "name", 0, |
194 |
diskimage_types[boot_disk_type], boot_disk_id); |
SETTINGS_TYPE_STRING, SETTINGS_FORMAT_STRING, |
195 |
|
(void *) &e->name); |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
|
|
bootblock_buf, 512); |
|
|
if (!res) { |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
if (bootblock_buf[510] != 0x55 || bootblock_buf[511] != 0xaa) |
|
|
debug("WARNING! The 0x55,0xAA marker is missing! " |
|
|
"Booting anyway.\n"); |
|
|
store_buf(cpu, 0x7c00, (char *)bootblock_buf, 512); |
|
|
free(bootblock_buf); |
|
|
|
|
|
return 1; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* Try reading a kernel manually from the disk. The code here |
|
|
* does not rely on machine-dependent boot blocks etc. |
|
|
*/ |
|
|
/* ISO9660: (0x800 bytes at 0x8000) */ |
|
|
bootblock_buf = malloc(0x800); |
|
|
if (bootblock_buf == NULL) { |
|
|
fprintf(stderr, "Out of memory.\n"); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
|
|
0, 0x8000, bootblock_buf, 0x800); |
|
|
if (!res) { |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
iso_type = 0; |
|
|
if (strncmp((char *)bootblock_buf+1, "CD001", 5) == 0) |
|
|
iso_type = 1; |
|
|
if (strncmp((char *)bootblock_buf+1, "CDW01", 5) == 0) |
|
|
iso_type = 2; |
|
|
if (strncmp((char *)bootblock_buf+1, "CDROM", 5) == 0) |
|
|
iso_type = 3; |
|
|
|
|
|
if (iso_type != 0) { |
|
|
/* We can't load a kernel if the name |
|
|
isn't specified. */ |
|
|
if (cpu->machine->boot_kernel_filename == NULL || |
|
|
cpu->machine->boot_kernel_filename[0] == '\0') |
|
|
fatal("\nISO9660 filesystem, but no kernel " |
|
|
"specified? (Use the -j option.)\n"); |
|
|
else |
|
|
retval = iso_load_bootblock(m, cpu, boot_disk_id, |
|
|
boot_disk_type, iso_type, bootblock_buf, |
|
|
n_loadp, load_namesp); |
|
|
} |
|
|
|
|
|
if (retval != 0) |
|
|
goto ret_ok; |
|
|
|
|
|
/* Apple parition table: */ |
|
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
|
|
0, 0x0, bootblock_buf, 0x800); |
|
|
if (!res) { |
|
|
fatal("Couldn't read the disk image. Aborting.\n"); |
|
|
return 0; |
|
|
} |
|
|
if (bootblock_buf[0x000] == 'E' && bootblock_buf[0x001] == 'R' && |
|
|
bootblock_buf[0x200] == 'P' && bootblock_buf[0x201] == 'M') { |
|
|
/* We can't load a kernel if the name |
|
|
isn't specified. */ |
|
|
if (cpu->machine->boot_kernel_filename == NULL || |
|
|
cpu->machine->boot_kernel_filename[0] == '\0') |
|
|
fatal("\nApple partition table, but no kernel " |
|
|
"specified? (Use the -j option.)\n"); |
|
|
else |
|
|
retval = apple_load_bootblock(m, cpu, boot_disk_id, |
|
|
boot_disk_type, n_loadp, load_namesp); |
|
196 |
} |
} |
197 |
|
|
198 |
ret_ok: |
return e; |
|
free(bootblock_buf); |
|
|
return retval; |
|
199 |
} |
} |
200 |
|
|
201 |
|
|
202 |
/* |
/* |
203 |
* emul_new(): |
* emul_destroy(): |
204 |
* |
* |
205 |
* Returns a reasonably initialized struct emul. |
* Destroys a previously created emul object. |
206 |
*/ |
*/ |
207 |
struct emul *emul_new(char *name) |
void emul_destroy(struct emul *emul) |
208 |
{ |
{ |
209 |
struct emul *e; |
int i; |
210 |
e = malloc(sizeof(struct emul)); |
|
211 |
if (e == NULL) { |
if (emul->name != NULL) { |
212 |
fprintf(stderr, "out of memory in emul_new()\n"); |
settings_remove(emul->settings, "name"); |
213 |
exit(1); |
free(emul->name); |
214 |
} |
} |
215 |
|
|
216 |
memset(e, 0, sizeof(struct emul)); |
for (i=0; i<emul->n_machines; i++) |
217 |
|
machine_destroy(emul->machines[i]); |
218 |
|
|
219 |
/* Sane default values: */ |
if (emul->machines != NULL) |
220 |
e->n_machines = 0; |
free(emul->machines); |
|
e->next_serial_nr = 1; |
|
221 |
|
|
222 |
if (name != NULL) { |
/* Remove any remaining level-1 settings: */ |
223 |
e->name = strdup(name); |
settings_remove_all(emul->settings); |
224 |
if (e->name == NULL) { |
settings_destroy(emul->settings); |
|
fprintf(stderr, "out of memory in emul_new()\n"); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
225 |
|
|
226 |
return e; |
free(emul); |
227 |
} |
} |
228 |
|
|
229 |
|
|
238 |
struct machine *emul_add_machine(struct emul *e, char *name) |
struct machine *emul_add_machine(struct emul *e, char *name) |
239 |
{ |
{ |
240 |
struct machine *m; |
struct machine *m; |
241 |
|
char tmpstr[20]; |
242 |
|
int i; |
243 |
|
|
244 |
m = machine_new(name, e); |
m = machine_new(name, e, e->n_machines); |
245 |
m->serial_nr = (e->next_serial_nr ++); |
m->serial_nr = (e->next_serial_nr ++); |
246 |
|
|
247 |
|
i = e->n_machines; |
248 |
|
|
249 |
e->n_machines ++; |
e->n_machines ++; |
250 |
e->machines = realloc(e->machines, |
e->machines = realloc(e->machines, |
251 |
sizeof(struct machine *) * e->n_machines); |
sizeof(struct machine *) * e->n_machines); |
254 |
exit(1); |
exit(1); |
255 |
} |
} |
256 |
|
|
257 |
e->machines[e->n_machines - 1] = m; |
e->machines[i] = m; |
258 |
|
|
259 |
|
snprintf(tmpstr, sizeof(tmpstr), "machine[%i]", i); |
260 |
|
settings_add(e->settings, tmpstr, 1, SETTINGS_TYPE_SUBSETTINGS, 0, |
261 |
|
e->machines[i]->settings); |
262 |
|
|
263 |
return m; |
return m; |
264 |
} |
} |
265 |
|
|
655 |
} |
} |
656 |
} |
} |
657 |
|
|
|
/* Special things required _before_ loading the file: */ |
|
|
switch (m->arch) { |
|
|
case ARCH_X86: |
|
|
/* |
|
|
* X86 machines normally don't need to load any files, |
|
|
* they can boot from disk directly. Therefore, an x86 |
|
|
* machine usually boots up in 16-bit real mode. When |
|
|
* loading a 32-bit (or even 64-bit) ELF, that's not |
|
|
* very nice, hence this special case. |
|
|
*/ |
|
|
pc_bios_simple_pmode_setup(cpu); |
|
|
break; |
|
|
} |
|
|
|
|
658 |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
659 |
|
|
660 |
/* |
/* |
696 |
} |
} |
697 |
break; |
break; |
698 |
|
|
|
case ARCH_HPPA: |
|
|
break; |
|
|
|
|
|
case ARCH_I960: |
|
|
break; |
|
|
|
|
|
case ARCH_IA64: |
|
|
break; |
|
|
|
|
699 |
case ARCH_M68K: |
case ARCH_M68K: |
700 |
break; |
break; |
701 |
|
|
721 |
break; |
break; |
722 |
|
|
723 |
case ARCH_SH: |
case ARCH_SH: |
724 |
if (cpu->cd.sh.bits == 32) |
if (cpu->cd.sh.cpu_type.bits == 32) |
725 |
cpu->pc &= 0xffffffffULL; |
cpu->pc &= 0xffffffffULL; |
726 |
cpu->pc &= ~1; |
cpu->pc &= ~1; |
727 |
break; |
break; |
729 |
case ARCH_SPARC: |
case ARCH_SPARC: |
730 |
break; |
break; |
731 |
|
|
|
case ARCH_TRANSPUTER: |
|
|
cpu->pc &= 0xffffffffULL; |
|
|
break; |
|
|
|
|
|
case ARCH_X86: |
|
|
/* |
|
|
* NOTE: The toc field is used to indicate an ELF32 |
|
|
* or ELF64 load. |
|
|
*/ |
|
|
switch (toc) { |
|
|
case 0: /* 16-bit? TODO */ |
|
|
cpu->pc &= 0xffffffffULL; |
|
|
break; |
|
|
case 1: /* 32-bit. */ |
|
|
cpu->pc &= 0xffffffffULL; |
|
|
break; |
|
|
case 2: /* 64-bit: TODO */ |
|
|
fatal("64-bit x86 load. TODO\n"); |
|
|
exit(1); |
|
|
} |
|
|
break; |
|
|
|
|
732 |
default: |
default: |
733 |
fatal("emul_machine_setup(): Internal error: " |
fatal("emul_machine_setup(): Internal error: " |
734 |
"Unimplemented arch %i\n", m->arch); |
"Unimplemented arch %i\n", m->arch); |
764 |
useremul_setup(cpu, n_load, load_names); |
useremul_setup(cpu, n_load, load_names); |
765 |
|
|
766 |
/* Startup the bootstrap CPU: */ |
/* Startup the bootstrap CPU: */ |
767 |
cpu->bootstrap_cpu_flag = 1; |
cpu->running = 1; |
|
cpu->running = 1; |
|
768 |
|
|
769 |
/* ... or pause all CPUs, if start_paused is set: */ |
/* ... or pause all CPUs, if start_paused is set: */ |
770 |
if (m->start_paused) { |
if (m->start_paused) { |
793 |
|
|
794 |
case ARCH_ARM: |
case ARCH_ARM: |
795 |
/* ARM cpus aren't 64-bit: */ |
/* ARM cpus aren't 64-bit: */ |
796 |
debug("0x%08x", (int)entrypoint); |
debug("0x%08"PRIx32, (uint32_t) entrypoint); |
797 |
break; |
break; |
798 |
|
|
799 |
case ARCH_AVR: |
case ARCH_AVR: |
800 |
/* Atmel AVR uses a 16-bit or 22-bit program counter: */ |
/* Atmel AVR uses a 16-bit or 22-bit program counter: */ |
801 |
debug("0x%04x", (int)entrypoint); |
debug("0x%04x", (int) entrypoint); |
802 |
break; |
break; |
803 |
|
|
804 |
case ARCH_MIPS: |
case ARCH_MIPS: |
805 |
if (cpu->is_32bit) { |
if (cpu->is_32bit) { |
806 |
debug("0x%08x", (int)m->cpus[ |
debug("0x%08"PRIx32, (uint32_t) |
807 |
m->bootstrap_cpu]->pc); |
m->cpus[m->bootstrap_cpu]->pc); |
808 |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
809 |
debug(" (gp=0x%08x)", (int)m->cpus[ |
debug(" (gp=0x%08"PRIx32")", (uint32_t) |
810 |
m->bootstrap_cpu]->cd.mips.gpr[ |
m->cpus[m->bootstrap_cpu]->cd.mips.gpr[ |
811 |
MIPS_GPR_GP]); |
MIPS_GPR_GP]); |
812 |
} else { |
} else { |
813 |
debug("0x%016llx", (long long)m->cpus[ |
debug("0x%016"PRIx64, (uint64_t) |
814 |
m->bootstrap_cpu]->pc); |
m->cpus[m->bootstrap_cpu]->pc); |
815 |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
816 |
debug(" (gp=0x%016llx)", (long long) |
debug(" (gp=0x%016"PRIx64")", (uint64_t) |
817 |
cpu->cd.mips.gpr[MIPS_GPR_GP]); |
cpu->cd.mips.gpr[MIPS_GPR_GP]); |
818 |
} |
} |
819 |
break; |
break; |
820 |
|
|
821 |
case ARCH_PPC: |
case ARCH_PPC: |
822 |
if (cpu->cd.ppc.bits == 32) |
if (cpu->cd.ppc.bits == 32) |
823 |
debug("0x%08x", (int)entrypoint); |
debug("0x%08"PRIx32, (uint32_t) entrypoint); |
824 |
else |
else |
825 |
debug("0x%016llx", (long long)entrypoint); |
debug("0x%016"PRIx64, (uint64_t) entrypoint); |
|
break; |
|
|
|
|
|
case ARCH_X86: |
|
|
debug("0x%04x:0x%llx", cpu->cd.x86.s[X86_S_CS], |
|
|
(long long)cpu->pc); |
|
826 |
break; |
break; |
827 |
|
|
828 |
default: |
default: |
829 |
if (cpu->is_32bit) |
if (cpu->is_32bit) |
830 |
debug("0x%08x", (int)cpu->pc); |
debug("0x%08"PRIx32, (uint32_t) cpu->pc); |
831 |
else |
else |
832 |
debug("0x%016llx", (long long)cpu->pc); |
debug("0x%016"PRIx64, (uint64_t) cpu->pc); |
833 |
} |
} |
834 |
debug("\n"); |
debug("\n"); |
835 |
|
|
889 |
|
|
890 |
/* Create a simple network: */ |
/* Create a simple network: */ |
891 |
emul->net = net_init(emul, NET_INIT_FLAG_GATEWAY, |
emul->net = net_init(emul, NET_INIT_FLAG_GATEWAY, |
892 |
"10.0.0.0", 8, NULL, 0, 0); |
NET_DEFAULT_IPV4_MASK, |
893 |
|
NET_DEFAULT_IPV4_LEN, |
894 |
|
NULL, 0, 0, NULL); |
895 |
} else { |
} else { |
896 |
/* Userland pseudo-machine: */ |
/* Userland pseudo-machine: */ |
897 |
debug("Syscall emulation (userland-only) setup...\n"); |
debug("Syscall emulation (userland-only) setup...\n"); |
910 |
* |
* |
911 |
* Create an emul struct by reading settings from a configuration file. |
* Create an emul struct by reading settings from a configuration file. |
912 |
*/ |
*/ |
913 |
struct emul *emul_create_from_configfile(char *fname) |
struct emul *emul_create_from_configfile(char *fname, int id) |
914 |
{ |
{ |
915 |
int iadd = DEBUG_INDENTATION; |
int iadd = DEBUG_INDENTATION; |
916 |
struct emul *e = emul_new(fname); |
struct emul *e = emul_new(fname, id); |
917 |
|
|
918 |
debug("Creating emulation from configfile \"%s\":\n", fname); |
debug("Creating emulation from configfile \"%s\":\n", fname); |
919 |
debug_indentation(iadd); |
debug_indentation(iadd); |
1000 |
cpu_functioncall_trace(emuls[0]->machines[0]->cpus[0], |
cpu_functioncall_trace(emuls[0]->machines[0]->cpus[0], |
1001 |
emuls[0]->machines[0]->cpus[0]->pc); |
emuls[0]->machines[0]->cpus[0]->pc); |
1002 |
|
|
1003 |
|
/* Start emulated clocks: */ |
1004 |
|
timer_start(); |
1005 |
|
|
1006 |
/* |
/* |
1007 |
* MAIN LOOP: |
* MAIN LOOP: |
1008 |
* |
* |
1047 |
if (single_step == SINGLE_STEPPING) |
if (single_step == SINGLE_STEPPING) |
1048 |
debugger(); |
debugger(); |
1049 |
|
|
1050 |
e = emuls[0]; /* Note: Only 1 emul supported now. */ |
for (i=0; i<n_emuls; i++) { |
1051 |
|
e = emuls[i]; |
1052 |
|
|
1053 |
for (j=0; j<e->n_machines; j++) { |
for (j=0; j<e->n_machines; j++) { |
1054 |
if (e->machines[j]->gdb.port > 0) |
anything = machine_run(e->machines[j]); |
1055 |
debugger_gdb_check_incoming(e->machines[j]); |
if (anything) |
1056 |
|
go = 1; |
1057 |
anything = machine_run(e->machines[j]); |
} |
|
if (anything) |
|
|
go = 1; |
|
1058 |
} |
} |
1059 |
} |
} |
1060 |
|
|
1061 |
|
/* Stop any running timers: */ |
1062 |
|
timer_stop(); |
1063 |
|
|
1064 |
/* Deinitialize all CPUs in all machines in all emulations: */ |
/* Deinitialize all CPUs in all machines in all emulations: */ |
1065 |
for (i=0; i<n_emuls; i++) { |
for (i=0; i<n_emuls; i++) { |
1066 |
e = emuls[i]; |
e = emuls[i]; |
1077 |
debugger(); |
debugger(); |
1078 |
} |
} |
1079 |
|
|
1080 |
/* Any machine using X11? Then we should wait before exiting: */ |
/* Any machine using X11? Then wait before exiting: */ |
1081 |
n = 0; |
n = 0; |
1082 |
for (i=0; i<n_emuls; i++) |
for (i=0; i<n_emuls; i++) |
1083 |
for (j=0; j<emuls[i]->n_machines; j++) |
for (j=0; j<emuls[i]->n_machines; j++) |
1087 |
printf("Press enter to quit.\n"); |
printf("Press enter to quit.\n"); |
1088 |
while (!console_charavail(MAIN_CONSOLE)) { |
while (!console_charavail(MAIN_CONSOLE)) { |
1089 |
x11_check_event(emuls, n_emuls); |
x11_check_event(emuls, n_emuls); |
1090 |
usleep(1); |
usleep(10000); |
1091 |
} |
} |
1092 |
console_readchar(MAIN_CONSOLE); |
console_readchar(MAIN_CONSOLE); |
1093 |
} |
} |
1094 |
|
|
1095 |
console_deinit(); |
console_deinit_main(); |
1096 |
} |
} |
1097 |
|
|