2002-02-04 16:58:13 +00:00
|
|
|
/*
|
|
|
|
* main_unix.cpp - Emulation core, Unix implementation
|
|
|
|
*
|
2004-01-12 15:37:24 +00:00
|
|
|
* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
|
2002-02-04 16:58:13 +00:00
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write to the Free Software
|
|
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NOTES:
|
|
|
|
*
|
|
|
|
* See main_beos.cpp for a description of the three operating modes.
|
|
|
|
*
|
|
|
|
* In addition to that, we have to handle the fact that the MacOS ABI
|
|
|
|
* is slightly different from the SysV ABI used by Linux:
|
|
|
|
* - Stack frames are different (e.g. LR is stored in 8(r1) under
|
|
|
|
* MacOS, but in 4(r1) under Linux)
|
|
|
|
* - There is no TOC under Linux; r2 is free for the user
|
|
|
|
* - r13 is used as a small data pointer under Linux (but appearently
|
|
|
|
* it is not used this way? To be sure, we specify -msdata=none
|
|
|
|
* in the Makefile)
|
|
|
|
* - As there is no TOC, there are also no TVECTs under Linux;
|
|
|
|
* function pointers point directly to the function code
|
|
|
|
* The Execute*() functions have to account for this. Additionally, we
|
|
|
|
* cannot simply call MacOS functions by getting their TVECT and jumping
|
|
|
|
* to it. Such calls are done via the call_macos*() functions in
|
|
|
|
* asm_linux.S that create a MacOS stack frame, load the TOC pointer
|
|
|
|
* and put the arguments into the right registers.
|
|
|
|
*
|
|
|
|
* As on the BeOS, we have to specify an alternate signal stack because
|
|
|
|
* interrupts (and, under Linux, Low Memory accesses) may occur when r1
|
|
|
|
* is pointing to the Kernel Data or to Low Memory. There is one
|
|
|
|
* problem, however, due to the alternate signal stack being global to
|
|
|
|
* all signal handlers. Consider the following scenario:
|
|
|
|
* - The main thread is executing some native PPC MacOS code in
|
|
|
|
* MODE_NATIVE, running on the MacOS stack (somewhere in the Mac RAM).
|
|
|
|
* - A SIGUSR2 interrupt occurs. The kernel switches to the signal
|
|
|
|
* stack and starts executing the SIGUSR2 signal handler.
|
|
|
|
* - The signal handler sees the MODE_NATIVE and calls ppc_interrupt()
|
|
|
|
* to handle a native interrupt.
|
|
|
|
* - ppc_interrupt() sets r1 to point to the Kernel Data and jumps to
|
|
|
|
* the nanokernel.
|
|
|
|
* - The nanokernel accesses a Low Memory global (most likely one of
|
|
|
|
* the XLMs), a SIGSEGV occurs.
|
|
|
|
* - The kernel sees that r1 does not point to the signal stack and
|
|
|
|
* switches to the signal stack again, thus overwriting the data that
|
|
|
|
* the SIGUSR2 handler put there.
|
|
|
|
* The same problem arises when calling ExecutePPC() inside the MODE_EMUL_OP
|
|
|
|
* interrupt handler.
|
|
|
|
*
|
|
|
|
* The solution is to set the signal stack to a second, "extra" stack
|
|
|
|
* inside the SIGUSR2 handler before entering the Nanokernel or calling
|
|
|
|
* ExecutePPC (or any function that might cause a mode switch). The signal
|
|
|
|
* stack is restored before exiting the SIGUSR2 handler.
|
|
|
|
*
|
|
|
|
* TODO:
|
|
|
|
* check if SIGSEGV handler works for all registers (including FP!)
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
#include <time.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <pthread.h>
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#include <sys/ipc.h>
|
|
|
|
#include <sys/shm.h>
|
|
|
|
#include <signal.h>
|
|
|
|
|
|
|
|
#include "sysdeps.h"
|
|
|
|
#include "main.h"
|
|
|
|
#include "version.h"
|
|
|
|
#include "prefs.h"
|
|
|
|
#include "prefs_editor.h"
|
|
|
|
#include "cpu_emulation.h"
|
|
|
|
#include "emul_op.h"
|
|
|
|
#include "xlowmem.h"
|
|
|
|
#include "xpram.h"
|
|
|
|
#include "timer.h"
|
|
|
|
#include "adb.h"
|
|
|
|
#include "sony.h"
|
|
|
|
#include "disk.h"
|
|
|
|
#include "cdrom.h"
|
|
|
|
#include "scsi.h"
|
|
|
|
#include "video.h"
|
|
|
|
#include "audio.h"
|
|
|
|
#include "ether.h"
|
|
|
|
#include "serial.h"
|
|
|
|
#include "clip.h"
|
|
|
|
#include "extfs.h"
|
|
|
|
#include "sys.h"
|
|
|
|
#include "macos_util.h"
|
|
|
|
#include "rom_patches.h"
|
|
|
|
#include "user_strings.h"
|
2003-05-13 16:59:57 +00:00
|
|
|
#include "vm_alloc.h"
|
2003-05-22 22:12:05 +00:00
|
|
|
#include "sigsegv.h"
|
2003-12-04 17:26:38 +00:00
|
|
|
#include "thunks.h"
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
#define DEBUG 0
|
|
|
|
#include "debug.h"
|
|
|
|
|
|
|
|
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
|
|
|
|
#ifdef ENABLE_GTK
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef ENABLE_XF86_DGA
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
#include <X11/Xutil.h>
|
|
|
|
#include <X11/extensions/xf86dga.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef ENABLE_MON
|
|
|
|
#include "mon.h"
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2004-01-04 18:35:21 +00:00
|
|
|
// Enable emulation of unaligned lmw/stmw?
|
|
|
|
#define EMULATE_UNALIGNED_LOADSTORE_MULTIPLE 1
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Enable Execute68k() safety checks?
|
|
|
|
#define SAFE_EXEC_68K 0
|
|
|
|
|
|
|
|
// Interrupts in EMUL_OP mode?
|
|
|
|
#define INTERRUPTS_IN_EMUL_OP_MODE 1
|
|
|
|
|
|
|
|
// Interrupts in native mode?
|
|
|
|
#define INTERRUPTS_IN_NATIVE_MODE 1
|
|
|
|
|
|
|
|
|
|
|
|
// Constants
|
|
|
|
const char ROM_FILE_NAME[] = "ROM";
|
|
|
|
const char ROM_FILE_NAME2[] = "Mac OS ROM";
|
|
|
|
|
2003-12-04 17:26:38 +00:00
|
|
|
const uintptr RAM_BASE = 0x20000000; // Base address of RAM
|
2002-02-04 16:58:13 +00:00
|
|
|
const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
|
|
|
|
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
// Structure in which registers are saved in a signal handler;
|
|
|
|
// sigcontext->regs points to it
|
|
|
|
// (see arch/ppc/kernel/signal.c)
|
|
|
|
typedef struct {
|
|
|
|
uint32 u[4];
|
|
|
|
} __attribute((aligned(16))) vector128;
|
|
|
|
#include <linux/elf.h>
|
|
|
|
|
|
|
|
struct sigregs {
|
|
|
|
elf_gregset_t gp_regs; // Identical to pt_regs
|
|
|
|
double fp_regs[ELF_NFPREG]; // f0..f31 and fpsrc
|
|
|
|
//more (uninteresting) stuff following here
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
// Global variables (exported)
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
void *TOC; // Small data pointer (r13)
|
|
|
|
#endif
|
|
|
|
uint32 RAMBase; // Base address of Mac RAM
|
|
|
|
uint32 RAMSize; // Size of Mac RAM
|
|
|
|
uint32 KernelDataAddr; // Address of Kernel Data
|
|
|
|
uint32 BootGlobsAddr; // Address of BootGlobs structure at top of Mac RAM
|
|
|
|
uint32 PVR; // Theoretical PVR
|
|
|
|
int64 CPUClockSpeed; // Processor clock speed (Hz)
|
|
|
|
int64 BusClockSpeed; // Bus clock speed (Hz)
|
|
|
|
|
|
|
|
|
|
|
|
// Global variables
|
2003-10-26 07:54:02 +00:00
|
|
|
char *x_display_name = NULL; // X11 display name
|
2002-02-04 16:58:13 +00:00
|
|
|
Display *x_display = NULL; // X11 display handle
|
2003-12-31 18:16:55 +00:00
|
|
|
#ifdef X11_LOCK_TYPE
|
|
|
|
X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
|
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
static int zero_fd = 0; // FD of /dev/zero
|
|
|
|
static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped
|
|
|
|
static int kernel_area = -1; // SHM ID of Kernel Data area
|
|
|
|
static bool rom_area_mapped = false; // Flag: Mac ROM mmap()ped
|
|
|
|
static bool ram_area_mapped = false; // Flag: Mac RAM mmap()ped
|
|
|
|
static KernelData *kernel_data; // Pointer to Kernel Data
|
|
|
|
static EmulatorData *emulator_data;
|
|
|
|
|
|
|
|
static uint8 last_xpram[XPRAM_SIZE]; // Buffer for monitoring XPRAM changes
|
|
|
|
|
|
|
|
static bool nvram_thread_active = false; // Flag: NVRAM watchdog installed
|
|
|
|
static pthread_t nvram_thread; // NVRAM watchdog
|
|
|
|
static bool tick_thread_active = false; // Flag: MacOS thread installed
|
|
|
|
static pthread_t tick_thread; // 60Hz thread
|
|
|
|
static pthread_t emul_thread; // MacOS thread
|
|
|
|
|
|
|
|
static bool ready_for_signals = false; // Handler installed, signals can be sent
|
|
|
|
static int64 num_segv = 0; // Number of handled SEGV signals
|
|
|
|
|
|
|
|
static struct sigaction sigusr2_action; // Interrupt signal (of emulator thread)
|
2003-12-05 13:37:56 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
static uintptr sig_stack = 0; // Stack for PowerPC interrupt routine
|
|
|
|
#else
|
2002-02-04 16:58:13 +00:00
|
|
|
static struct sigaction sigsegv_action; // Data access exception signal (of emulator thread)
|
|
|
|
static struct sigaction sigill_action; // Illegal instruction signal (of emulator thread)
|
|
|
|
static void *sig_stack = NULL; // Stack for signal handlers
|
|
|
|
static void *extra_stack = NULL; // Stack for SIGSEGV inside interrupt handler
|
|
|
|
static bool emul_thread_fatal = false; // Flag: MacOS thread crashed, tick thread shall dump debug output
|
|
|
|
static sigregs sigsegv_regs; // Register dump when crashed
|
2004-01-04 18:35:21 +00:00
|
|
|
static const char *crash_reason = NULL; // Reason of the crash (SIGSEGV, SIGBUS, SIGILL)
|
2002-02-04 16:58:13 +00:00
|
|
|
#endif
|
|
|
|
|
2003-12-05 12:36:11 +00:00
|
|
|
uintptr SheepMem::zero_page = 0; // Address of ro page filled in with zeros
|
2003-12-04 17:26:38 +00:00
|
|
|
uintptr SheepMem::base = 0x60000000; // Address of SheepShaver data
|
|
|
|
uintptr SheepMem::top = 0; // Top of SheepShaver data (stack like storage)
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Prototypes
|
|
|
|
static void Quit(void);
|
|
|
|
static void *emul_func(void *arg);
|
|
|
|
static void *nvram_func(void *arg);
|
|
|
|
static void *tick_func(void *arg);
|
2003-09-29 15:46:09 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
static void sigusr2_handler(int sig);
|
2003-11-03 21:28:32 +00:00
|
|
|
extern void emul_ppc(uint32 start);
|
|
|
|
extern void init_emul_ppc(void);
|
|
|
|
extern void exit_emul_ppc(void);
|
2003-09-29 15:46:09 +00:00
|
|
|
#else
|
2003-09-28 21:20:38 +00:00
|
|
|
static void sigusr2_handler(int sig, sigcontext_struct *sc);
|
2002-02-04 16:58:13 +00:00
|
|
|
static void sigsegv_handler(int sig, sigcontext_struct *sc);
|
|
|
|
static void sigill_handler(int sig, sigcontext_struct *sc);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
// From asm_linux.S
|
2003-10-26 09:14:14 +00:00
|
|
|
#if !EMULATED_PPC
|
2002-02-04 16:58:13 +00:00
|
|
|
extern "C" void *get_toc(void);
|
|
|
|
extern "C" void *get_sp(void);
|
|
|
|
extern "C" void flush_icache_range(void *start, void *end);
|
|
|
|
extern "C" void jump_to_rom(uint32 entry, uint32 context);
|
|
|
|
extern "C" void quit_emulator(void);
|
|
|
|
extern "C" void execute_68k(uint32 pc, M68kRegisters *r);
|
|
|
|
extern "C" void ppc_interrupt(uint32 entry, uint32 kernel_data);
|
|
|
|
extern "C" int atomic_add(int *var, int v);
|
|
|
|
extern "C" int atomic_and(int *var, int v);
|
|
|
|
extern "C" int atomic_or(int *var, int v);
|
|
|
|
extern void paranoia_check(void);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2003-10-26 09:14:14 +00:00
|
|
|
#if EMULATED_PPC
|
2003-12-05 13:37:56 +00:00
|
|
|
/*
|
|
|
|
* Return signal stack base
|
|
|
|
*/
|
|
|
|
|
|
|
|
uintptr SignalStackBase(void)
|
|
|
|
{
|
|
|
|
return sig_stack + SIG_STACK_SIZE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2003-10-26 09:14:14 +00:00
|
|
|
/*
|
|
|
|
* Atomic operations
|
|
|
|
*/
|
|
|
|
|
|
|
|
#if HAVE_SPINLOCKS
|
|
|
|
static spinlock_t atomic_ops_lock = SPIN_LOCK_UNLOCKED;
|
|
|
|
#else
|
|
|
|
#define spin_lock(LOCK)
|
|
|
|
#define spin_unlock(LOCK)
|
|
|
|
#endif
|
|
|
|
|
|
|
|
int atomic_add(int *var, int v)
|
|
|
|
{
|
|
|
|
spin_lock(&atomic_ops_lock);
|
|
|
|
int ret = *var;
|
|
|
|
*var += v;
|
|
|
|
spin_unlock(&atomic_ops_lock);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
int atomic_and(int *var, int v)
|
|
|
|
{
|
|
|
|
spin_lock(&atomic_ops_lock);
|
|
|
|
int ret = *var;
|
|
|
|
*var &= v;
|
|
|
|
spin_unlock(&atomic_ops_lock);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
int atomic_or(int *var, int v)
|
|
|
|
{
|
|
|
|
spin_lock(&atomic_ops_lock);
|
|
|
|
int ret = *var;
|
|
|
|
*var |= v;
|
|
|
|
spin_unlock(&atomic_ops_lock);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
/*
|
|
|
|
* Main program
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void usage(const char *prg_name)
|
|
|
|
{
|
|
|
|
printf("Usage: %s [OPTION...]\n", prg_name);
|
|
|
|
printf("\nUnix options:\n");
|
|
|
|
printf(" --display STRING\n X display to use\n");
|
|
|
|
PrefsPrintUsage();
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
char str[256];
|
|
|
|
uint32 *boot_globs;
|
|
|
|
int16 i16;
|
|
|
|
int rom_fd;
|
|
|
|
FILE *proc_file;
|
|
|
|
const char *rom_path;
|
|
|
|
uint32 rom_size, actual;
|
|
|
|
uint8 *rom_tmp;
|
|
|
|
time_t now, expire;
|
|
|
|
|
|
|
|
// Initialize variables
|
|
|
|
RAMBase = 0;
|
|
|
|
tzset();
|
|
|
|
|
|
|
|
// Print some info
|
|
|
|
printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
|
|
|
|
printf(" %s\n", GetString(STR_ABOUT_TEXT2));
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
// Get TOC pointer
|
|
|
|
TOC = get_toc();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef ENABLE_GTK
|
|
|
|
// Init GTK
|
|
|
|
gtk_set_locale();
|
|
|
|
gtk_init(&argc, &argv);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Read preferences
|
|
|
|
PrefsInit(argc, argv);
|
|
|
|
|
|
|
|
// Parse command line arguments
|
|
|
|
for (int i=1; i<argc; i++) {
|
|
|
|
if (strcmp(argv[i], "--help") == 0) {
|
|
|
|
usage(argv[0]);
|
|
|
|
} else if (strcmp(argv[i], "--display") == 0) {
|
|
|
|
i++;
|
|
|
|
if (i < argc)
|
|
|
|
x_display_name = strdup(argv[i]);
|
|
|
|
} else if (argv[i][0] == '-') {
|
|
|
|
fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
|
|
|
|
usage(argv[0]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Open display
|
|
|
|
x_display = XOpenDisplay(x_display_name);
|
|
|
|
if (x_display == NULL) {
|
|
|
|
char str[256];
|
|
|
|
sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
|
|
|
|
// Fork out, so we can return from fullscreen mode when things get ugly
|
|
|
|
XF86DGAForkApp(DefaultScreen(x_display));
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef ENABLE_MON
|
|
|
|
// Initialize mon
|
|
|
|
mon_init();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Get system info
|
|
|
|
PVR = 0x00040000; // Default: 604
|
|
|
|
CPUClockSpeed = 100000000; // Default: 100MHz
|
|
|
|
BusClockSpeed = 100000000; // Default: 100MHz
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
proc_file = fopen("/proc/cpuinfo", "r");
|
|
|
|
if (proc_file) {
|
|
|
|
char line[256];
|
|
|
|
while(fgets(line, 255, proc_file)) {
|
|
|
|
// Read line
|
|
|
|
int len = strlen(line);
|
|
|
|
if (len == 0)
|
|
|
|
continue;
|
|
|
|
line[len-1] = 0;
|
|
|
|
|
|
|
|
// Parse line
|
|
|
|
int i;
|
|
|
|
char value[256];
|
|
|
|
if (sscanf(line, "cpu : %s", value) == 1) {
|
|
|
|
if (strcmp(value, "601") == 0)
|
|
|
|
PVR = 0x00010000;
|
|
|
|
else if (strcmp(value, "603") == 0)
|
|
|
|
PVR = 0x00030000;
|
|
|
|
else if (strcmp(value, "604") == 0)
|
|
|
|
PVR = 0x00040000;
|
|
|
|
else if (strcmp(value, "603e") == 0)
|
|
|
|
PVR = 0x00060000;
|
|
|
|
else if (strcmp(value, "603ev") == 0)
|
|
|
|
PVR = 0x00070000;
|
|
|
|
else if (strcmp(value, "604e") == 0)
|
|
|
|
PVR = 0x00090000;
|
|
|
|
else if (strcmp(value, "604ev5") == 0)
|
|
|
|
PVR = 0x000a0000;
|
|
|
|
else if (strcmp(value, "750") == 0)
|
|
|
|
PVR = 0x00080000;
|
|
|
|
else if (strcmp(value, "821") == 0)
|
|
|
|
PVR = 0x00320000;
|
|
|
|
else if (strcmp(value, "860") == 0)
|
|
|
|
PVR = 0x00500000;
|
|
|
|
else
|
|
|
|
printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
|
|
|
|
}
|
|
|
|
if (sscanf(line, "clock : %dMHz", &i) == 1)
|
|
|
|
CPUClockSpeed = BusClockSpeed = i * 1000000;
|
|
|
|
}
|
|
|
|
fclose(proc_file);
|
|
|
|
} else {
|
|
|
|
sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
|
|
|
|
WarningAlert(str);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
D(bug("PVR: %08x (assumed)\n", PVR));
|
|
|
|
|
|
|
|
// Init system routines
|
|
|
|
SysInit();
|
|
|
|
|
|
|
|
// Show preferences editor
|
|
|
|
if (!PrefsFindBool("nogui"))
|
|
|
|
if (!PrefsEditor())
|
|
|
|
goto quit;
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
// Check some things
|
|
|
|
paranoia_check();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Open /dev/zero
|
|
|
|
zero_fd = open("/dev/zero", O_RDWR);
|
|
|
|
if (zero_fd < 0) {
|
|
|
|
sprintf(str, GetString(STR_NO_DEV_ZERO_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Create Low Memory area (0x0000..0x3000)
|
2003-05-13 16:59:57 +00:00
|
|
|
if (vm_acquire_fixed((char *)0, 0x3000) < 0) {
|
2002-02-04 16:58:13 +00:00
|
|
|
sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
lm_area_mapped = true;
|
|
|
|
|
|
|
|
// Create areas for Kernel Data
|
|
|
|
kernel_area = shmget(IPC_PRIVATE, KERNEL_AREA_SIZE, 0600);
|
|
|
|
if (kernel_area == -1) {
|
|
|
|
sprintf(str, GetString(STR_KD_SHMGET_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
if (shmat(kernel_area, (void *)KERNEL_DATA_BASE, 0) < 0) {
|
|
|
|
sprintf(str, GetString(STR_KD_SHMAT_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
if (shmat(kernel_area, (void *)KERNEL_DATA2_BASE, 0) < 0) {
|
|
|
|
sprintf(str, GetString(STR_KD2_SHMAT_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2003-12-04 17:26:38 +00:00
|
|
|
kernel_data = (KernelData *)KERNEL_DATA_BASE;
|
2002-02-04 16:58:13 +00:00
|
|
|
emulator_data = &kernel_data->ed;
|
2003-12-04 17:26:38 +00:00
|
|
|
KernelDataAddr = KERNEL_DATA_BASE;
|
2002-02-04 16:58:13 +00:00
|
|
|
D(bug("Kernel Data at %p, Emulator Data at %p\n", kernel_data, emulator_data));
|
|
|
|
|
2003-09-29 15:46:09 +00:00
|
|
|
// Create area for SheepShaver data
|
2003-12-04 17:26:38 +00:00
|
|
|
if (!SheepMem::Init()) {
|
2003-09-29 15:46:09 +00:00
|
|
|
sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Create area for Mac ROM
|
2003-05-13 16:59:57 +00:00
|
|
|
if (vm_acquire_fixed((char *)ROM_BASE, ROM_AREA_SIZE) < 0) {
|
2002-02-04 16:58:13 +00:00
|
|
|
sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2003-09-07 14:33:54 +00:00
|
|
|
#if !EMULATED_PPC || defined(__powerpc__)
|
2003-05-13 16:59:57 +00:00
|
|
|
if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
|
|
|
|
sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
rom_area_mapped = true;
|
|
|
|
D(bug("ROM area at %08x\n", ROM_BASE));
|
|
|
|
|
|
|
|
// Create area for Mac RAM
|
|
|
|
RAMSize = PrefsFindInt32("ramsize");
|
|
|
|
if (RAMSize < 8*1024*1024) {
|
|
|
|
WarningAlert(GetString(STR_SMALL_RAM_WARN));
|
|
|
|
RAMSize = 8*1024*1024;
|
|
|
|
}
|
|
|
|
|
2003-09-29 15:46:09 +00:00
|
|
|
if (vm_acquire_fixed((char *)RAM_BASE, RAMSize) < 0) {
|
2002-02-04 16:58:13 +00:00
|
|
|
sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2003-05-13 16:59:57 +00:00
|
|
|
#if !EMULATED_PPC
|
2003-09-29 15:46:09 +00:00
|
|
|
if (vm_protect((char *)RAM_BASE, RAMSize, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
|
2003-05-13 16:59:57 +00:00
|
|
|
sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
#endif
|
2003-09-29 15:46:09 +00:00
|
|
|
RAMBase = RAM_BASE;
|
2002-02-04 16:58:13 +00:00
|
|
|
ram_area_mapped = true;
|
|
|
|
D(bug("RAM area at %08x\n", RAMBase));
|
|
|
|
|
|
|
|
if (RAMBase > ROM_BASE) {
|
|
|
|
ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Load Mac ROM
|
|
|
|
rom_path = PrefsFindString("rom");
|
|
|
|
rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
|
|
|
|
if (rom_fd < 0) {
|
|
|
|
rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME2, O_RDONLY);
|
|
|
|
if (rom_fd < 0) {
|
|
|
|
ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
printf(GetString(STR_READING_ROM_FILE));
|
|
|
|
rom_size = lseek(rom_fd, 0, SEEK_END);
|
|
|
|
lseek(rom_fd, 0, SEEK_SET);
|
|
|
|
rom_tmp = new uint8[ROM_SIZE];
|
|
|
|
actual = read(rom_fd, (void *)rom_tmp, ROM_SIZE);
|
|
|
|
close(rom_fd);
|
2002-04-21 15:07:09 +00:00
|
|
|
|
|
|
|
// Decode Mac ROM
|
|
|
|
if (!DecodeROM(rom_tmp, actual)) {
|
|
|
|
if (rom_size != 4*1024*1024) {
|
2002-02-04 16:58:13 +00:00
|
|
|
ErrorAlert(GetString(STR_ROM_SIZE_ERR));
|
|
|
|
goto quit;
|
|
|
|
} else {
|
|
|
|
ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
}
|
2002-04-21 15:07:09 +00:00
|
|
|
delete[] rom_tmp;
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Load NVRAM
|
|
|
|
XPRAMInit();
|
|
|
|
|
|
|
|
// Set boot volume
|
2003-10-26 00:32:31 +00:00
|
|
|
i16 = PrefsFindInt32("bootdrive");
|
2002-02-04 16:58:13 +00:00
|
|
|
XPRAM[0x1378] = i16 >> 8;
|
|
|
|
XPRAM[0x1379] = i16 & 0xff;
|
2003-10-26 00:32:31 +00:00
|
|
|
i16 = PrefsFindInt32("bootdriver");
|
2002-02-04 16:58:13 +00:00
|
|
|
XPRAM[0x137a] = i16 >> 8;
|
|
|
|
XPRAM[0x137b] = i16 & 0xff;
|
|
|
|
|
|
|
|
// Create BootGlobs at top of Mac memory
|
|
|
|
memset((void *)(RAMBase + RAMSize - 4096), 0, 4096);
|
|
|
|
BootGlobsAddr = RAMBase + RAMSize - 0x1c;
|
|
|
|
boot_globs = (uint32 *)BootGlobsAddr;
|
|
|
|
boot_globs[-5] = htonl(RAMBase + RAMSize); // MemTop
|
|
|
|
boot_globs[0] = htonl(RAMBase); // First RAM bank
|
|
|
|
boot_globs[1] = htonl(RAMSize);
|
|
|
|
boot_globs[2] = htonl((uint32)-1); // End of bank table
|
|
|
|
|
2003-12-04 17:26:38 +00:00
|
|
|
// Init thunks
|
|
|
|
if (!ThunksInit())
|
|
|
|
goto quit;
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Init drivers
|
|
|
|
SonyInit();
|
|
|
|
DiskInit();
|
|
|
|
CDROMInit();
|
|
|
|
SCSIInit();
|
|
|
|
|
|
|
|
// Init external file system
|
|
|
|
ExtFSInit();
|
|
|
|
|
2004-01-04 05:45:50 +00:00
|
|
|
// Init ADB
|
|
|
|
ADBInit();
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Init audio
|
|
|
|
AudioInit();
|
|
|
|
|
|
|
|
// Init network
|
|
|
|
EtherInit();
|
|
|
|
|
|
|
|
// Init serial ports
|
|
|
|
SerialInit();
|
|
|
|
|
|
|
|
// Init Time Manager
|
|
|
|
TimerInit();
|
|
|
|
|
|
|
|
// Init clipboard
|
|
|
|
ClipInit();
|
|
|
|
|
|
|
|
// Init video
|
|
|
|
if (!VideoInit())
|
|
|
|
goto quit;
|
|
|
|
|
|
|
|
// Install ROM patches
|
|
|
|
if (!PatchROM()) {
|
|
|
|
ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Clear caches (as we loaded and patched code) and write protect ROM
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
MakeExecutable(0, (void *)ROM_BASE, ROM_AREA_SIZE);
|
|
|
|
#endif
|
2003-05-13 16:59:57 +00:00
|
|
|
vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Initialize Kernel Data
|
|
|
|
memset(kernel_data, 0, sizeof(KernelData));
|
|
|
|
if (ROMType == ROMTYPE_NEWWORLD) {
|
2003-12-04 17:26:38 +00:00
|
|
|
uintptr of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32));
|
|
|
|
memset((void *)of_dev_tree, 0, 4 * sizeof(uint32));
|
|
|
|
uintptr vector_lookup_tbl = SheepMem::Reserve(128);
|
|
|
|
uintptr vector_mask_tbl = SheepMem::Reserve(64);
|
2002-02-04 16:58:13 +00:00
|
|
|
memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80);
|
2003-12-04 17:26:38 +00:00
|
|
|
memset((void *)vector_lookup_tbl, 0, 128);
|
|
|
|
memset((void *)vector_mask_tbl, 0, 64);
|
2002-02-04 16:58:13 +00:00
|
|
|
kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE);
|
2003-12-04 17:26:38 +00:00
|
|
|
kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree); // OF device tree base
|
|
|
|
kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl);
|
|
|
|
kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl);
|
2002-02-04 16:58:13 +00:00
|
|
|
kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base
|
|
|
|
kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base
|
|
|
|
kernel_data->v[0xc20 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc24 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc30 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc34 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc38 >> 2] = htonl(0x00010020);
|
|
|
|
kernel_data->v[0xc3c >> 2] = htonl(0x00200001);
|
|
|
|
kernel_data->v[0xc40 >> 2] = htonl(0x00010000);
|
|
|
|
kernel_data->v[0xc50 >> 2] = htonl(RAMBase);
|
|
|
|
kernel_data->v[0xc54 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xf60 >> 2] = htonl(PVR);
|
|
|
|
kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed);
|
|
|
|
kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed);
|
|
|
|
kernel_data->v[0xf6c >> 2] = htonl(CPUClockSpeed);
|
|
|
|
} else {
|
|
|
|
kernel_data->v[0xc80 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc84 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc90 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc94 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xc98 >> 2] = htonl(0x00010020);
|
|
|
|
kernel_data->v[0xc9c >> 2] = htonl(0x00200001);
|
|
|
|
kernel_data->v[0xca0 >> 2] = htonl(0x00010000);
|
|
|
|
kernel_data->v[0xcb0 >> 2] = htonl(RAMBase);
|
|
|
|
kernel_data->v[0xcb4 >> 2] = htonl(RAMSize);
|
|
|
|
kernel_data->v[0xf80 >> 2] = htonl(PVR);
|
|
|
|
kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed);
|
|
|
|
kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed);
|
|
|
|
kernel_data->v[0xf8c >> 2] = htonl(CPUClockSpeed);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Initialize extra low memory
|
|
|
|
D(bug("Initializing Low Memory...\n"));
|
|
|
|
memset(NULL, 0, 0x3000);
|
|
|
|
WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver
|
2003-12-04 17:26:38 +00:00
|
|
|
WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr); // For trap replacement routines
|
2002-02-04 16:58:13 +00:00
|
|
|
WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR
|
|
|
|
WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch
|
|
|
|
WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode)
|
2003-12-05 12:36:11 +00:00
|
|
|
WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage()); // Pointer to read-only page with all bits set to 0
|
2003-12-04 23:37:38 +00:00
|
|
|
#if !EMULATED_PPC
|
|
|
|
WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator
|
|
|
|
#endif
|
|
|
|
WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT)); // DLPI ethernet driver functions
|
2003-12-04 17:26:38 +00:00
|
|
|
WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM));
|
|
|
|
WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN));
|
|
|
|
WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE));
|
|
|
|
WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT));
|
|
|
|
WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV));
|
|
|
|
WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO));
|
2002-02-04 16:58:13 +00:00
|
|
|
D(bug("Low Memory initialized\n"));
|
|
|
|
|
|
|
|
// Start 60Hz thread
|
|
|
|
tick_thread_active = (pthread_create(&tick_thread, NULL, tick_func, NULL) == 0);
|
|
|
|
D(bug("Tick thread installed (%ld)\n", tick_thread));
|
|
|
|
|
|
|
|
// Start NVRAM watchdog thread
|
|
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE);
|
|
|
|
nvram_thread_active = (pthread_create(&nvram_thread, NULL, nvram_func, NULL) == 0);
|
|
|
|
D(bug("NVRAM thread installed (%ld)\n", nvram_thread));
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
// Create and install stacks for signal handlers
|
|
|
|
sig_stack = malloc(SIG_STACK_SIZE);
|
|
|
|
D(bug("Signal stack at %p\n", sig_stack));
|
|
|
|
if (sig_stack == NULL) {
|
|
|
|
ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
extra_stack = malloc(SIG_STACK_SIZE);
|
|
|
|
D(bug("Extra stack at %p\n", extra_stack));
|
|
|
|
if (extra_stack == NULL) {
|
|
|
|
ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
struct sigaltstack new_stack;
|
|
|
|
new_stack.ss_sp = sig_stack;
|
|
|
|
new_stack.ss_flags = 0;
|
|
|
|
new_stack.ss_size = SIG_STACK_SIZE;
|
|
|
|
if (sigaltstack(&new_stack, NULL) < 0) {
|
|
|
|
sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
2004-01-04 18:35:21 +00:00
|
|
|
// Install SIGSEGV and SIGBUS handlers
|
2002-02-04 16:58:13 +00:00
|
|
|
sigemptyset(&sigsegv_action.sa_mask); // Block interrupts during SEGV handling
|
|
|
|
sigaddset(&sigsegv_action.sa_mask, SIGUSR2);
|
|
|
|
sigsegv_action.sa_handler = (__sighandler_t)sigsegv_handler;
|
|
|
|
sigsegv_action.sa_flags = SA_ONSTACK;
|
|
|
|
sigsegv_action.sa_restorer = NULL;
|
|
|
|
if (sigaction(SIGSEGV, &sigsegv_action, NULL) < 0) {
|
|
|
|
sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2004-01-04 18:35:21 +00:00
|
|
|
if (sigaction(SIGBUS, &sigsegv_action, NULL) < 0) {
|
|
|
|
sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Install SIGILL handler
|
|
|
|
sigemptyset(&sigill_action.sa_mask); // Block interrupts during ILL handling
|
|
|
|
sigaddset(&sigill_action.sa_mask, SIGUSR2);
|
|
|
|
sigill_action.sa_handler = (__sighandler_t)sigill_handler;
|
|
|
|
sigill_action.sa_flags = SA_ONSTACK;
|
|
|
|
sigill_action.sa_restorer = NULL;
|
|
|
|
if (sigaction(SIGILL, &sigill_action, NULL) < 0) {
|
|
|
|
sprintf(str, GetString(STR_SIGILL_INSTALL_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
2003-09-07 14:33:54 +00:00
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Install interrupt signal handler
|
|
|
|
sigemptyset(&sigusr2_action.sa_mask);
|
|
|
|
sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
|
2003-09-29 15:46:09 +00:00
|
|
|
sigusr2_action.sa_flags = 0;
|
|
|
|
#if !EMULATED_PPC
|
2002-02-04 16:58:13 +00:00
|
|
|
sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
|
2003-09-29 15:46:09 +00:00
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
sigusr2_action.sa_restorer = NULL;
|
|
|
|
if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
|
|
|
|
sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
|
|
|
|
ErrorAlert(str);
|
|
|
|
goto quit;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Get my thread ID and execute MacOS thread function
|
|
|
|
emul_thread = pthread_self();
|
|
|
|
D(bug("MacOS thread is %ld\n", emul_thread));
|
|
|
|
emul_func(NULL);
|
|
|
|
|
|
|
|
quit:
|
|
|
|
Quit();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Cleanup and quit
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void Quit(void)
|
|
|
|
{
|
2003-11-03 21:28:32 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
// Exit PowerPC emulation
|
|
|
|
exit_emul_ppc();
|
|
|
|
#endif
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Stop 60Hz thread
|
|
|
|
if (tick_thread_active) {
|
|
|
|
pthread_cancel(tick_thread);
|
|
|
|
pthread_join(tick_thread, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Stop NVRAM watchdog thread
|
|
|
|
if (nvram_thread_active) {
|
|
|
|
pthread_cancel(nvram_thread);
|
|
|
|
pthread_join(nvram_thread, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
2004-01-04 18:35:21 +00:00
|
|
|
// Uninstall SIGSEGV and SIGBUS handlers
|
2002-02-04 16:58:13 +00:00
|
|
|
sigemptyset(&sigsegv_action.sa_mask);
|
|
|
|
sigsegv_action.sa_handler = SIG_DFL;
|
|
|
|
sigsegv_action.sa_flags = 0;
|
|
|
|
sigaction(SIGSEGV, &sigsegv_action, NULL);
|
2004-01-04 18:35:21 +00:00
|
|
|
sigaction(SIGBUS, &sigsegv_action, NULL);
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Uninstall SIGILL handler
|
|
|
|
sigemptyset(&sigill_action.sa_mask);
|
|
|
|
sigill_action.sa_handler = SIG_DFL;
|
|
|
|
sigill_action.sa_flags = 0;
|
|
|
|
sigaction(SIGILL, &sigill_action, NULL);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Save NVRAM
|
|
|
|
XPRAMExit();
|
|
|
|
|
|
|
|
// Exit clipboard
|
|
|
|
ClipExit();
|
|
|
|
|
|
|
|
// Exit Time Manager
|
|
|
|
TimerExit();
|
|
|
|
|
|
|
|
// Exit serial
|
|
|
|
SerialExit();
|
|
|
|
|
|
|
|
// Exit network
|
|
|
|
EtherExit();
|
|
|
|
|
|
|
|
// Exit audio
|
|
|
|
AudioExit();
|
|
|
|
|
2004-01-04 05:45:50 +00:00
|
|
|
// Exit ADB
|
|
|
|
ADBExit();
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Exit video
|
|
|
|
VideoExit();
|
|
|
|
|
|
|
|
// Exit external file system
|
|
|
|
ExtFSExit();
|
|
|
|
|
|
|
|
// Exit drivers
|
|
|
|
SCSIExit();
|
|
|
|
CDROMExit();
|
|
|
|
DiskExit();
|
|
|
|
SonyExit();
|
|
|
|
|
2004-01-07 18:24:45 +00:00
|
|
|
// Delete thunks
|
|
|
|
ThunksExit();
|
|
|
|
|
2003-12-04 17:26:38 +00:00
|
|
|
// Delete SheepShaver globals
|
|
|
|
SheepMem::Exit();
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Delete RAM area
|
|
|
|
if (ram_area_mapped)
|
2003-09-29 15:46:09 +00:00
|
|
|
vm_release((char *)RAM_BASE, RAMSize);
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Delete ROM area
|
|
|
|
if (rom_area_mapped)
|
2003-05-13 16:59:57 +00:00
|
|
|
vm_release((char *)ROM_BASE, ROM_AREA_SIZE);
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
// Delete Kernel Data area
|
|
|
|
if (kernel_area >= 0) {
|
|
|
|
shmdt((void *)KERNEL_DATA_BASE);
|
|
|
|
shmdt((void *)KERNEL_DATA2_BASE);
|
|
|
|
shmctl(kernel_area, IPC_RMID, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Delete Low Memory area
|
|
|
|
if (lm_area_mapped)
|
|
|
|
munmap((char *)0x0000, 0x3000);
|
|
|
|
|
|
|
|
// Close /dev/zero
|
|
|
|
if (zero_fd > 0)
|
|
|
|
close(zero_fd);
|
|
|
|
|
|
|
|
// Exit system routines
|
|
|
|
SysExit();
|
|
|
|
|
|
|
|
// Exit preferences
|
|
|
|
PrefsExit();
|
|
|
|
|
|
|
|
#ifdef ENABLE_MON
|
|
|
|
// Exit mon
|
|
|
|
mon_exit();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Close X11 server connection
|
|
|
|
if (x_display)
|
|
|
|
XCloseDisplay(x_display);
|
|
|
|
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Jump into Mac ROM, start 680x0 emulator
|
|
|
|
*/
|
|
|
|
|
|
|
|
#if EMULATED_PPC
|
|
|
|
void jump_to_rom(uint32 entry)
|
|
|
|
{
|
|
|
|
init_emul_ppc();
|
|
|
|
emul_ppc(entry);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Emulator thread function
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void *emul_func(void *arg)
|
|
|
|
{
|
|
|
|
// We're now ready to receive signals
|
|
|
|
ready_for_signals = true;
|
|
|
|
|
|
|
|
// Decrease priority, so more time-critical things like audio will work better
|
|
|
|
nice(1);
|
|
|
|
|
|
|
|
// Jump to ROM boot routine
|
|
|
|
D(bug("Jumping to ROM\n"));
|
|
|
|
#if EMULATED_PPC
|
|
|
|
jump_to_rom(ROM_BASE + 0x310000);
|
|
|
|
#else
|
|
|
|
jump_to_rom(ROM_BASE + 0x310000, (uint32)emulator_data);
|
|
|
|
#endif
|
|
|
|
D(bug("Returned from ROM\n"));
|
|
|
|
|
|
|
|
// We're no longer ready to receive signals
|
|
|
|
ready_for_signals = false;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
/*
|
|
|
|
* Execute 68k subroutine (must be ended with RTS)
|
|
|
|
* This must only be called by the emul_thread when in EMUL_OP mode
|
|
|
|
* r->a[7] is unused, the routine runs on the caller's stack
|
|
|
|
*/
|
|
|
|
|
|
|
|
void Execute68k(uint32 pc, M68kRegisters *r)
|
|
|
|
{
|
|
|
|
#if SAFE_EXEC_68K
|
|
|
|
if (ReadMacInt32(XLM_RUN_MODE) != MODE_EMUL_OP)
|
|
|
|
printf("FATAL: Execute68k() not called from EMUL_OP mode\n");
|
|
|
|
if (!pthread_equal(pthread_self(), emul_thread))
|
|
|
|
printf("FATAL: Execute68k() not called from emul_thread\n");
|
|
|
|
#endif
|
|
|
|
execute_68k(pc, r);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Execute 68k A-Trap from EMUL_OP routine
|
|
|
|
* r->a[7] is unused, the routine runs on the caller's stack
|
|
|
|
*/
|
|
|
|
|
|
|
|
void Execute68kTrap(uint16 trap, M68kRegisters *r)
|
|
|
|
{
|
|
|
|
uint16 proc[2] = {trap, M68K_RTS};
|
|
|
|
Execute68k((uint32)proc, r);
|
|
|
|
}
|
2003-09-28 21:20:38 +00:00
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Quit emulator (cause return from jump_to_rom)
|
|
|
|
*/
|
|
|
|
|
|
|
|
void QuitEmulator(void)
|
|
|
|
{
|
|
|
|
#if EMULATED_PPC
|
|
|
|
Quit();
|
|
|
|
#else
|
|
|
|
quit_emulator();
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Pause/resume emulator
|
|
|
|
*/
|
|
|
|
|
|
|
|
void PauseEmulator(void)
|
|
|
|
{
|
|
|
|
pthread_kill(emul_thread, SIGSTOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
void ResumeEmulator(void)
|
|
|
|
{
|
|
|
|
pthread_kill(emul_thread, SIGCONT);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Dump 68k registers
|
|
|
|
*/
|
|
|
|
|
|
|
|
void Dump68kRegs(M68kRegisters *r)
|
|
|
|
{
|
|
|
|
// Display 68k registers
|
|
|
|
for (int i=0; i<8; i++) {
|
|
|
|
printf("d%d: %08x", i, r->d[i]);
|
|
|
|
if (i == 3 || i == 7)
|
|
|
|
printf("\n");
|
|
|
|
else
|
|
|
|
printf(", ");
|
|
|
|
}
|
|
|
|
for (int i=0; i<8; i++) {
|
|
|
|
printf("a%d: %08x", i, r->a[i]);
|
|
|
|
if (i == 3 || i == 7)
|
|
|
|
printf("\n");
|
|
|
|
else
|
|
|
|
printf(", ");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make code executable
|
|
|
|
*/
|
|
|
|
|
|
|
|
void MakeExecutable(int dummy, void *start, uint32 length)
|
|
|
|
{
|
2003-10-12 05:44:17 +00:00
|
|
|
if (((uintptr)start >= ROM_BASE) && ((uintptr)start < (ROM_BASE + ROM_SIZE)))
|
2002-02-04 16:58:13 +00:00
|
|
|
return;
|
2003-10-12 05:44:17 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
FlushCodeCache((uintptr)start, (uintptr)start + length);
|
|
|
|
#else
|
|
|
|
flush_icache_range(start, (void *)((uintptr)start + length));
|
2002-02-04 16:58:13 +00:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Patch things after system startup (gets called by disk driver accRun routine)
|
|
|
|
*/
|
|
|
|
|
|
|
|
void PatchAfterStartup(void)
|
|
|
|
{
|
2003-09-07 14:33:54 +00:00
|
|
|
ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL);
|
2002-02-04 16:58:13 +00:00
|
|
|
InstallExtFS();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NVRAM watchdog thread (saves NVRAM every minute)
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void *nvram_func(void *arg)
|
|
|
|
{
|
|
|
|
struct timespec req = {60, 0}; // 1 minute
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
pthread_testcancel();
|
|
|
|
nanosleep(&req, NULL);
|
|
|
|
pthread_testcancel();
|
|
|
|
if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
|
|
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE);
|
|
|
|
SaveXPRAM();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 60Hz thread (really 60.15Hz)
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void *tick_func(void *arg)
|
|
|
|
{
|
|
|
|
int tick_counter = 0;
|
|
|
|
struct timespec req = {0, 16625000};
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
|
|
|
|
// Wait
|
|
|
|
nanosleep(&req, NULL);
|
|
|
|
|
|
|
|
#if !EMULATED_PPC
|
|
|
|
// Did we crash?
|
|
|
|
if (emul_thread_fatal) {
|
|
|
|
|
|
|
|
// Yes, dump registers
|
|
|
|
pt_regs *r = (pt_regs *)&sigsegv_regs;
|
|
|
|
char str[256];
|
2004-01-04 18:35:21 +00:00
|
|
|
if (crash_reason == NULL)
|
|
|
|
crash_reason = "SIGSEGV";
|
|
|
|
sprintf(str, "%s\n"
|
2002-02-04 16:58:13 +00:00
|
|
|
" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
|
|
|
|
" xer %08lx cr %08lx \n"
|
|
|
|
" r0 %08lx r1 %08lx r2 %08lx r3 %08lx\n"
|
|
|
|
" r4 %08lx r5 %08lx r6 %08lx r7 %08lx\n"
|
|
|
|
" r8 %08lx r9 %08lx r10 %08lx r11 %08lx\n"
|
|
|
|
" r12 %08lx r13 %08lx r14 %08lx r15 %08lx\n"
|
|
|
|
" r16 %08lx r17 %08lx r18 %08lx r19 %08lx\n"
|
|
|
|
" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
|
|
|
|
" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
|
|
|
|
" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
|
2004-01-04 18:35:21 +00:00
|
|
|
crash_reason,
|
2002-02-04 16:58:13 +00:00
|
|
|
r->nip, r->link, r->ctr, r->msr,
|
|
|
|
r->xer, r->ccr,
|
|
|
|
r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
|
|
|
|
r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
|
|
|
|
r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
|
|
|
|
r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
|
|
|
|
r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
|
|
|
|
r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
|
|
|
|
r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
|
|
|
|
r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
|
|
|
|
printf(str);
|
|
|
|
VideoQuitFullScreen();
|
|
|
|
|
|
|
|
#ifdef ENABLE_MON
|
|
|
|
// Start up mon in real-mode
|
|
|
|
printf("Welcome to the sheep factory.\n");
|
|
|
|
char *arg[4] = {"mon", "-m", "-r", NULL};
|
|
|
|
mon(3, arg);
|
|
|
|
#endif
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Pseudo Mac 1Hz interrupt, update local time
|
|
|
|
if (++tick_counter > 60) {
|
|
|
|
tick_counter = 0;
|
|
|
|
WriteMacInt32(0x20c, TimerDateTime());
|
|
|
|
}
|
|
|
|
|
|
|
|
// Trigger 60Hz interrupt
|
|
|
|
if (ReadMacInt32(XLM_IRQ_NEST) == 0) {
|
|
|
|
SetInterruptFlag(INTFLAG_VIA);
|
|
|
|
TriggerInterrupt();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-02-21 15:12:12 +00:00
|
|
|
/*
|
|
|
|
* Pthread configuration
|
|
|
|
*/
|
|
|
|
|
|
|
|
void Set_pthread_attr(pthread_attr_t *attr, int priority)
|
|
|
|
{
|
2003-11-10 16:05:52 +00:00
|
|
|
#ifdef HAVE_PTHREADS
|
|
|
|
pthread_attr_init(attr);
|
|
|
|
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
|
|
|
|
// Some of these only work for superuser
|
|
|
|
if (geteuid() == 0) {
|
|
|
|
pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED);
|
|
|
|
pthread_attr_setschedpolicy(attr, SCHED_FIFO);
|
|
|
|
struct sched_param fifo_param;
|
|
|
|
fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) +
|
|
|
|
sched_get_priority_max(SCHED_FIFO)) / 2 +
|
|
|
|
priority);
|
|
|
|
pthread_attr_setschedparam(attr, &fifo_param);
|
|
|
|
}
|
|
|
|
if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) {
|
|
|
|
#ifdef PTHREAD_SCOPE_BOUND_NP
|
|
|
|
// If system scope is not available (eg. we're not running
|
|
|
|
// with CAP_SCHED_MGT capability on an SGI box), try bound
|
|
|
|
// scope. It exposes pthread scheduling to the kernel,
|
|
|
|
// without setting realtime priority.
|
|
|
|
pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|
2002-02-21 15:12:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
/*
|
|
|
|
* Mutexes
|
|
|
|
*/
|
|
|
|
|
2003-09-28 21:20:38 +00:00
|
|
|
#ifdef HAVE_PTHREADS
|
|
|
|
|
|
|
|
struct B2_mutex {
|
|
|
|
B2_mutex() {
|
|
|
|
pthread_mutexattr_t attr;
|
|
|
|
pthread_mutexattr_init(&attr);
|
|
|
|
// Initialize the mutex for priority inheritance --
|
|
|
|
// required for accurate timing.
|
|
|
|
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
|
|
|
|
pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
|
|
|
|
#endif
|
|
|
|
#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
|
|
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
|
|
|
|
#endif
|
|
|
|
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED
|
|
|
|
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
|
|
|
|
#endif
|
|
|
|
pthread_mutex_init(&m, &attr);
|
|
|
|
pthread_mutexattr_destroy(&attr);
|
|
|
|
}
|
|
|
|
~B2_mutex() {
|
|
|
|
pthread_mutex_trylock(&m); // Make sure it's locked before
|
|
|
|
pthread_mutex_unlock(&m); // unlocking it.
|
|
|
|
pthread_mutex_destroy(&m);
|
|
|
|
}
|
|
|
|
pthread_mutex_t m;
|
|
|
|
};
|
|
|
|
|
|
|
|
B2_mutex *B2_create_mutex(void)
|
|
|
|
{
|
|
|
|
return new B2_mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_lock_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
pthread_mutex_lock(&mutex->m);
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_unlock_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
pthread_mutex_unlock(&mutex->m);
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_delete_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
delete mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
struct B2_mutex {
|
|
|
|
int dummy;
|
|
|
|
};
|
|
|
|
|
|
|
|
B2_mutex *B2_create_mutex(void)
|
|
|
|
{
|
|
|
|
return new B2_mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_lock_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_unlock_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
void B2_delete_mutex(B2_mutex *mutex)
|
|
|
|
{
|
|
|
|
delete mutex;
|
|
|
|
}
|
|
|
|
|
2003-09-28 21:20:38 +00:00
|
|
|
#endif
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Trigger signal USR2 from another thread
|
|
|
|
*/
|
|
|
|
|
2003-09-29 15:46:09 +00:00
|
|
|
#if !EMULATED_PPC || ASYNC_IRQ
|
2002-02-04 16:58:13 +00:00
|
|
|
void TriggerInterrupt(void)
|
|
|
|
{
|
|
|
|
if (ready_for_signals)
|
|
|
|
pthread_kill(emul_thread, SIGUSR2);
|
|
|
|
}
|
2003-09-28 21:20:38 +00:00
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Interrupt flags (must be handled atomically!)
|
|
|
|
*/
|
|
|
|
|
|
|
|
volatile uint32 InterruptFlags = 0;
|
|
|
|
|
|
|
|
void SetInterruptFlag(uint32 flag)
|
|
|
|
{
|
|
|
|
atomic_or((int *)&InterruptFlags, flag);
|
|
|
|
}
|
|
|
|
|
|
|
|
void ClearInterruptFlag(uint32 flag)
|
|
|
|
{
|
|
|
|
atomic_and((int *)&InterruptFlags, ~flag);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Disable interrupts
|
|
|
|
*/
|
|
|
|
|
|
|
|
void DisableInterrupt(void)
|
|
|
|
{
|
2003-09-28 21:20:38 +00:00
|
|
|
atomic_add((int *)XLM_IRQ_NEST, 1);
|
2002-02-04 16:58:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Enable interrupts
|
|
|
|
*/
|
|
|
|
|
|
|
|
void EnableInterrupt(void)
|
|
|
|
{
|
2003-09-28 21:20:38 +00:00
|
|
|
atomic_add((int *)XLM_IRQ_NEST, -1);
|
2002-02-04 16:58:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* USR2 handler
|
|
|
|
*/
|
|
|
|
|
2003-09-29 15:46:09 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
static void sigusr2_handler(int sig)
|
|
|
|
{
|
|
|
|
#if ASYNC_IRQ
|
|
|
|
extern void HandleInterrupt(void);
|
|
|
|
HandleInterrupt();
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
#else
|
2002-02-04 16:58:13 +00:00
|
|
|
static void sigusr2_handler(int sig, sigcontext_struct *sc)
|
|
|
|
{
|
|
|
|
pt_regs *r = sc->regs;
|
|
|
|
|
|
|
|
// Do nothing if interrupts are disabled
|
|
|
|
if (*(int32 *)XLM_IRQ_NEST > 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
// Disable MacOS stack sniffer
|
|
|
|
WriteMacInt32(0x110, 0);
|
|
|
|
|
|
|
|
// Interrupt action depends on current run mode
|
|
|
|
switch (ReadMacInt32(XLM_RUN_MODE)) {
|
|
|
|
case MODE_68K:
|
|
|
|
// 68k emulator active, trigger 68k interrupt level 1
|
|
|
|
WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
|
|
|
|
r->ccr |= ntohl(kernel_data->v[0x674 >> 2]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
#if INTERRUPTS_IN_NATIVE_MODE
|
|
|
|
case MODE_NATIVE:
|
|
|
|
// 68k emulator inactive, in nanokernel?
|
|
|
|
if (r->gpr[1] != KernelDataAddr) {
|
|
|
|
// Prepare for 68k interrupt level 1
|
|
|
|
WriteMacInt16(ntohl(kernel_data->v[0x67c >> 2]), 1);
|
|
|
|
WriteMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc, ReadMacInt32(ntohl(kernel_data->v[0x658 >> 2]) + 0xdc) | ntohl(kernel_data->v[0x674 >> 2]));
|
|
|
|
|
|
|
|
// Execute nanokernel interrupt routine (this will activate the 68k emulator)
|
|
|
|
atomic_add((int32 *)XLM_IRQ_NEST, 1);
|
|
|
|
if (ROMType == ROMTYPE_NEWWORLD)
|
|
|
|
ppc_interrupt(ROM_BASE + 0x312b1c, KernelDataAddr);
|
|
|
|
else
|
|
|
|
ppc_interrupt(ROM_BASE + 0x312a3c, KernelDataAddr);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if INTERRUPTS_IN_EMUL_OP_MODE
|
|
|
|
case MODE_EMUL_OP:
|
|
|
|
// 68k emulator active, within EMUL_OP routine, execute 68k interrupt routine directly when interrupt level is 0
|
|
|
|
if ((ReadMacInt32(XLM_68K_R25) & 7) == 0) {
|
|
|
|
|
|
|
|
// Set extra stack for SIGSEGV handler
|
|
|
|
struct sigaltstack new_stack;
|
|
|
|
new_stack.ss_sp = extra_stack;
|
|
|
|
new_stack.ss_flags = 0;
|
|
|
|
new_stack.ss_size = SIG_STACK_SIZE;
|
|
|
|
sigaltstack(&new_stack, NULL);
|
|
|
|
#if 1
|
|
|
|
// Execute full 68k interrupt routine
|
|
|
|
M68kRegisters r;
|
|
|
|
uint32 old_r25 = ReadMacInt32(XLM_68K_R25); // Save interrupt level
|
|
|
|
WriteMacInt32(XLM_68K_R25, 0x21); // Execute with interrupt level 1
|
|
|
|
static const uint16 proc[] = {
|
|
|
|
0x3f3c, 0x0000, // move.w #$0000,-(sp) (fake format word)
|
|
|
|
0x487a, 0x000a, // pea @1(pc) (return address)
|
|
|
|
0x40e7, // move sr,-(sp) (saved SR)
|
|
|
|
0x2078, 0x0064, // move.l $64,a0
|
|
|
|
0x4ed0, // jmp (a0)
|
|
|
|
M68K_RTS // @1
|
|
|
|
};
|
|
|
|
Execute68k((uint32)proc, &r);
|
|
|
|
WriteMacInt32(XLM_68K_R25, old_r25); // Restore interrupt level
|
|
|
|
#else
|
|
|
|
// Only update cursor
|
|
|
|
if (HasMacStarted()) {
|
|
|
|
if (InterruptFlags & INTFLAG_VIA) {
|
|
|
|
ClearInterruptFlag(INTFLAG_VIA);
|
|
|
|
ADBInterrupt();
|
2003-12-04 23:37:38 +00:00
|
|
|
ExecuteNative(NATIVE_VIDEO_VBL);
|
2002-02-04 16:58:13 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
// Reset normal signal stack
|
|
|
|
new_stack.ss_sp = sig_stack;
|
|
|
|
new_stack.ss_flags = 0;
|
|
|
|
new_stack.ss_size = SIG_STACK_SIZE;
|
|
|
|
sigaltstack(&new_stack, NULL);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
2003-09-29 15:46:09 +00:00
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* SIGSEGV handler
|
|
|
|
*/
|
|
|
|
|
2003-09-29 15:46:09 +00:00
|
|
|
#if !EMULATED_PPC
|
2002-02-04 16:58:13 +00:00
|
|
|
static void sigsegv_handler(int sig, sigcontext_struct *sc)
|
|
|
|
{
|
|
|
|
pt_regs *r = sc->regs;
|
2003-05-22 22:12:05 +00:00
|
|
|
|
|
|
|
// Get effective address
|
|
|
|
uint32 addr = r->dar;
|
|
|
|
|
|
|
|
#if ENABLE_VOSF
|
|
|
|
// Handle screen fault.
|
|
|
|
extern bool Screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction);
|
|
|
|
if (Screen_fault_handler((sigsegv_address_t)addr, (sigsegv_address_t)r->nip))
|
|
|
|
return;
|
|
|
|
#endif
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
num_segv++;
|
|
|
|
|
|
|
|
// Fault in Mac ROM or RAM?
|
|
|
|
bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
|
|
|
|
if (mac_fault) {
|
|
|
|
|
|
|
|
// "VM settings" during MacOS 8 installation
|
|
|
|
if (r->nip == ROM_BASE + 0x488160 && r->gpr[20] == 0xf8000000) {
|
|
|
|
r->nip += 4;
|
|
|
|
r->gpr[8] = 0;
|
|
|
|
return;
|
|
|
|
|
|
|
|
// MacOS 8.5 installation
|
|
|
|
} else if (r->nip == ROM_BASE + 0x488140 && r->gpr[16] == 0xf8000000) {
|
|
|
|
r->nip += 4;
|
|
|
|
r->gpr[8] = 0;
|
|
|
|
return;
|
|
|
|
|
|
|
|
// MacOS 8 serial drivers on startup
|
|
|
|
} else if (r->nip == ROM_BASE + 0x48e080 && (r->gpr[8] == 0xf3012002 || r->gpr[8] == 0xf3012000)) {
|
|
|
|
r->nip += 4;
|
|
|
|
r->gpr[8] = 0;
|
|
|
|
return;
|
|
|
|
|
|
|
|
// MacOS 8.1 serial drivers on startup
|
|
|
|
} else if (r->nip == ROM_BASE + 0x48c5e0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
|
|
|
|
r->nip += 4;
|
|
|
|
return;
|
|
|
|
} else if (r->nip == ROM_BASE + 0x4a10a0 && (r->gpr[20] == 0xf3012002 || r->gpr[20] == 0xf3012000)) {
|
|
|
|
r->nip += 4;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2003-05-22 22:12:05 +00:00
|
|
|
// Get opcode and divide into fields
|
|
|
|
uint32 opcode = *((uint32 *)r->nip);
|
|
|
|
uint32 primop = opcode >> 26;
|
|
|
|
uint32 exop = (opcode >> 1) & 0x3ff;
|
|
|
|
uint32 ra = (opcode >> 16) & 0x1f;
|
|
|
|
uint32 rb = (opcode >> 11) & 0x1f;
|
|
|
|
uint32 rd = (opcode >> 21) & 0x1f;
|
|
|
|
int32 imm = (int16)(opcode & 0xffff);
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
// Analyze opcode
|
|
|
|
enum {
|
|
|
|
TYPE_UNKNOWN,
|
|
|
|
TYPE_LOAD,
|
|
|
|
TYPE_STORE
|
|
|
|
} transfer_type = TYPE_UNKNOWN;
|
|
|
|
enum {
|
|
|
|
SIZE_UNKNOWN,
|
|
|
|
SIZE_BYTE,
|
|
|
|
SIZE_HALFWORD,
|
|
|
|
SIZE_WORD
|
|
|
|
} transfer_size = SIZE_UNKNOWN;
|
|
|
|
enum {
|
|
|
|
MODE_UNKNOWN,
|
|
|
|
MODE_NORM,
|
|
|
|
MODE_U,
|
|
|
|
MODE_X,
|
|
|
|
MODE_UX
|
|
|
|
} addr_mode = MODE_UNKNOWN;
|
|
|
|
switch (primop) {
|
|
|
|
case 31:
|
|
|
|
switch (exop) {
|
|
|
|
case 23: // lwzx
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_WORD; addr_mode = MODE_X; break;
|
|
|
|
case 55: // lwzux
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_WORD; addr_mode = MODE_UX; break;
|
|
|
|
case 87: // lbzx
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_BYTE; addr_mode = MODE_X; break;
|
|
|
|
case 119: // lbzux
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_BYTE; addr_mode = MODE_UX; break;
|
|
|
|
case 151: // stwx
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_WORD; addr_mode = MODE_X; break;
|
|
|
|
case 183: // stwux
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_WORD; addr_mode = MODE_UX; break;
|
|
|
|
case 215: // stbx
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_BYTE; addr_mode = MODE_X; break;
|
|
|
|
case 247: // stbux
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_BYTE; addr_mode = MODE_UX; break;
|
|
|
|
case 279: // lhzx
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_X; break;
|
|
|
|
case 311: // lhzux
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_UX; break;
|
|
|
|
case 343: // lhax
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_X; break;
|
|
|
|
case 375: // lhaux
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_UX; break;
|
|
|
|
case 407: // sthx
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_X; break;
|
|
|
|
case 439: // sthux
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_UX; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 32: // lwz
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_WORD; addr_mode = MODE_NORM; break;
|
|
|
|
case 33: // lwzu
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_WORD; addr_mode = MODE_U; break;
|
|
|
|
case 34: // lbz
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_BYTE; addr_mode = MODE_NORM; break;
|
|
|
|
case 35: // lbzu
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_BYTE; addr_mode = MODE_U; break;
|
|
|
|
case 36: // stw
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_WORD; addr_mode = MODE_NORM; break;
|
|
|
|
case 37: // stwu
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_WORD; addr_mode = MODE_U; break;
|
|
|
|
case 38: // stb
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_BYTE; addr_mode = MODE_NORM; break;
|
|
|
|
case 39: // stbu
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_BYTE; addr_mode = MODE_U; break;
|
|
|
|
case 40: // lhz
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
|
|
|
|
case 41: // lhzu
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
|
|
|
|
case 42: // lha
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
|
|
|
|
case 43: // lhau
|
|
|
|
transfer_type = TYPE_LOAD; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
|
|
|
|
case 44: // sth
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_NORM; break;
|
|
|
|
case 45: // sthu
|
|
|
|
transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
|
2004-01-04 18:35:21 +00:00
|
|
|
#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
|
|
|
|
case 46: // lmw
|
|
|
|
if (sig == SIGBUS) {
|
|
|
|
uint32 ea = (ra == 0 ? 0 : r->gpr[ra]) + imm;
|
|
|
|
D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->nip));
|
|
|
|
for (int i = rd; i <= 31; i++) {
|
|
|
|
r->gpr[i] = ReadMacInt32(ea);
|
|
|
|
ea += 4;
|
|
|
|
}
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 47: // stmw
|
|
|
|
if (sig == SIGBUS) {
|
|
|
|
uint32 ea = (ra == 0 ? 0 : r->gpr[ra]) + imm;
|
|
|
|
D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->nip));
|
|
|
|
for (int i = rd; i <= 31; i++) {
|
|
|
|
WriteMacInt32(ea, r->gpr[i]);
|
|
|
|
ea += 4;
|
|
|
|
}
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
#endif
|
2002-02-04 16:58:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// Ignore ROM writes
|
|
|
|
if (transfer_type == TYPE_STORE && addr >= ROM_BASE && addr < ROM_BASE + ROM_SIZE) {
|
|
|
|
// D(bug("WARNING: %s write access to ROM at %08lx, pc %08lx\n", transfer_size == SIZE_BYTE ? "Byte" : transfer_size == SIZE_HALFWORD ? "Halfword" : "Word", addr, r->nip));
|
|
|
|
if (addr_mode == MODE_U || addr_mode == MODE_UX)
|
|
|
|
r->gpr[ra] = addr;
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Ignore illegal memory accesses?
|
|
|
|
if (PrefsFindBool("ignoresegv")) {
|
|
|
|
if (addr_mode == MODE_U || addr_mode == MODE_UX)
|
|
|
|
r->gpr[ra] = addr;
|
|
|
|
if (transfer_type == TYPE_LOAD)
|
|
|
|
r->gpr[rd] = 0;
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
|
|
|
|
// In GUI mode, show error alert
|
|
|
|
if (!PrefsFindBool("nogui")) {
|
|
|
|
char str[256];
|
|
|
|
if (transfer_type == TYPE_LOAD || transfer_type == TYPE_STORE)
|
|
|
|
sprintf(str, GetString(STR_MEM_ACCESS_ERR), transfer_size == SIZE_BYTE ? "byte" : transfer_size == SIZE_HALFWORD ? "halfword" : "word", transfer_type == TYPE_LOAD ? GetString(STR_MEM_ACCESS_READ) : GetString(STR_MEM_ACCESS_WRITE), addr, r->nip, r->gpr[24], r->gpr[1]);
|
|
|
|
else
|
|
|
|
sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
|
|
|
|
ErrorAlert(str);
|
|
|
|
QuitEmulator();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// For all other errors, jump into debugger (sort of...)
|
2004-01-04 18:35:21 +00:00
|
|
|
crash_reason = (sig == SIGBUS) ? "SIGBUS" : "SIGSEGV";
|
2002-02-04 16:58:13 +00:00
|
|
|
if (!ready_for_signals) {
|
2004-01-04 18:35:21 +00:00
|
|
|
printf("%s\n");
|
2002-02-04 16:58:13 +00:00
|
|
|
printf(" sigcontext %p, pt_regs %p\n", sc, r);
|
|
|
|
printf(
|
|
|
|
" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
|
|
|
|
" xer %08lx cr %08lx \n"
|
|
|
|
" r0 %08lx r1 %08lx r2 %08lx r3 %08lx\n"
|
|
|
|
" r4 %08lx r5 %08lx r6 %08lx r7 %08lx\n"
|
|
|
|
" r8 %08lx r9 %08lx r10 %08lx r11 %08lx\n"
|
|
|
|
" r12 %08lx r13 %08lx r14 %08lx r15 %08lx\n"
|
|
|
|
" r16 %08lx r17 %08lx r18 %08lx r19 %08lx\n"
|
|
|
|
" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
|
|
|
|
" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
|
|
|
|
" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
|
2004-01-04 18:35:21 +00:00
|
|
|
crash_reason,
|
2002-02-04 16:58:13 +00:00
|
|
|
r->nip, r->link, r->ctr, r->msr,
|
|
|
|
r->xer, r->ccr,
|
|
|
|
r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
|
|
|
|
r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
|
|
|
|
r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
|
|
|
|
r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
|
|
|
|
r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
|
|
|
|
r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
|
|
|
|
r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
|
|
|
|
r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
|
|
|
|
exit(1);
|
|
|
|
QuitEmulator();
|
|
|
|
return;
|
|
|
|
} else {
|
|
|
|
// We crashed. Save registers, tell tick thread and loop forever
|
|
|
|
sigsegv_regs = *(sigregs *)r;
|
|
|
|
emul_thread_fatal = true;
|
|
|
|
for (;;) ;
|
|
|
|
}
|
|
|
|
rti:;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* SIGILL handler
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void sigill_handler(int sig, sigcontext_struct *sc)
|
|
|
|
{
|
|
|
|
pt_regs *r = sc->regs;
|
|
|
|
char str[256];
|
|
|
|
|
|
|
|
// Fault in Mac ROM or RAM?
|
|
|
|
bool mac_fault = (r->nip >= ROM_BASE) && (r->nip < (ROM_BASE + ROM_AREA_SIZE)) || (r->nip >= RAMBase) && (r->nip < (RAMBase + RAMSize));
|
|
|
|
if (mac_fault) {
|
|
|
|
|
|
|
|
// Get opcode and divide into fields
|
|
|
|
uint32 opcode = *((uint32 *)r->nip);
|
|
|
|
uint32 primop = opcode >> 26;
|
|
|
|
uint32 exop = (opcode >> 1) & 0x3ff;
|
|
|
|
uint32 ra = (opcode >> 16) & 0x1f;
|
|
|
|
uint32 rb = (opcode >> 11) & 0x1f;
|
|
|
|
uint32 rd = (opcode >> 21) & 0x1f;
|
|
|
|
int32 imm = (int16)(opcode & 0xffff);
|
|
|
|
|
|
|
|
switch (primop) {
|
|
|
|
case 9: // POWER instructions
|
|
|
|
case 22:
|
|
|
|
power_inst: sprintf(str, GetString(STR_POWER_INSTRUCTION_ERR), r->nip, r->gpr[1], opcode);
|
|
|
|
ErrorAlert(str);
|
|
|
|
QuitEmulator();
|
|
|
|
return;
|
|
|
|
|
|
|
|
case 31:
|
|
|
|
switch (exop) {
|
|
|
|
case 83: // mfmsr
|
|
|
|
r->gpr[rd] = 0xf072;
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
|
|
|
|
case 210: // mtsr
|
|
|
|
case 242: // mtsrin
|
|
|
|
case 306: // tlbie
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
|
|
|
|
case 339: { // mfspr
|
|
|
|
int spr = ra | (rb << 5);
|
|
|
|
switch (spr) {
|
|
|
|
case 0: // MQ
|
|
|
|
case 22: // DEC
|
|
|
|
case 952: // MMCR0
|
|
|
|
case 953: // PMC1
|
|
|
|
case 954: // PMC2
|
|
|
|
case 955: // SIA
|
|
|
|
case 956: // MMCR1
|
|
|
|
case 957: // PMC3
|
|
|
|
case 958: // PMC4
|
|
|
|
case 959: // SDA
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
case 25: // SDR1
|
|
|
|
r->gpr[rd] = 0xdead001f;
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
case 287: // PVR
|
|
|
|
r->gpr[rd] = PVR;
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case 467: { // mtspr
|
|
|
|
int spr = ra | (rb << 5);
|
|
|
|
switch (spr) {
|
|
|
|
case 0: // MQ
|
|
|
|
case 22: // DEC
|
|
|
|
case 275: // SPRG3
|
|
|
|
case 528: // IBAT0U
|
|
|
|
case 529: // IBAT0L
|
|
|
|
case 530: // IBAT1U
|
|
|
|
case 531: // IBAT1L
|
|
|
|
case 532: // IBAT2U
|
|
|
|
case 533: // IBAT2L
|
|
|
|
case 534: // IBAT3U
|
|
|
|
case 535: // IBAT3L
|
|
|
|
case 536: // DBAT0U
|
|
|
|
case 537: // DBAT0L
|
|
|
|
case 538: // DBAT1U
|
|
|
|
case 539: // DBAT1L
|
|
|
|
case 540: // DBAT2U
|
|
|
|
case 541: // DBAT2L
|
|
|
|
case 542: // DBAT3U
|
|
|
|
case 543: // DBAT3L
|
|
|
|
case 952: // MMCR0
|
|
|
|
case 953: // PMC1
|
|
|
|
case 954: // PMC2
|
|
|
|
case 955: // SIA
|
|
|
|
case 956: // MMCR1
|
|
|
|
case 957: // PMC3
|
|
|
|
case 958: // PMC4
|
|
|
|
case 959: // SDA
|
|
|
|
r->nip += 4;
|
|
|
|
goto rti;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case 29: case 107: case 152: case 153: // POWER instructions
|
|
|
|
case 184: case 216: case 217: case 248:
|
|
|
|
case 264: case 277: case 331: case 360:
|
|
|
|
case 363: case 488: case 531: case 537:
|
|
|
|
case 541: case 664: case 665: case 696:
|
|
|
|
case 728: case 729: case 760: case 920:
|
|
|
|
case 921: case 952:
|
|
|
|
goto power_inst;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// In GUI mode, show error alert
|
|
|
|
if (!PrefsFindBool("nogui")) {
|
|
|
|
sprintf(str, GetString(STR_UNKNOWN_SEGV_ERR), r->nip, r->gpr[24], r->gpr[1], opcode);
|
|
|
|
ErrorAlert(str);
|
|
|
|
QuitEmulator();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// For all other errors, jump into debugger (sort of...)
|
2004-01-04 18:35:21 +00:00
|
|
|
crash_reason = "SIGILL";
|
2002-02-04 16:58:13 +00:00
|
|
|
if (!ready_for_signals) {
|
2004-01-04 18:35:21 +00:00
|
|
|
printf("%s\n");
|
2002-02-04 16:58:13 +00:00
|
|
|
printf(" sigcontext %p, pt_regs %p\n", sc, r);
|
|
|
|
printf(
|
|
|
|
" pc %08lx lr %08lx ctr %08lx msr %08lx\n"
|
|
|
|
" xer %08lx cr %08lx \n"
|
|
|
|
" r0 %08lx r1 %08lx r2 %08lx r3 %08lx\n"
|
|
|
|
" r4 %08lx r5 %08lx r6 %08lx r7 %08lx\n"
|
|
|
|
" r8 %08lx r9 %08lx r10 %08lx r11 %08lx\n"
|
|
|
|
" r12 %08lx r13 %08lx r14 %08lx r15 %08lx\n"
|
|
|
|
" r16 %08lx r17 %08lx r18 %08lx r19 %08lx\n"
|
|
|
|
" r20 %08lx r21 %08lx r22 %08lx r23 %08lx\n"
|
|
|
|
" r24 %08lx r25 %08lx r26 %08lx r27 %08lx\n"
|
|
|
|
" r28 %08lx r29 %08lx r30 %08lx r31 %08lx\n",
|
2004-01-04 18:35:21 +00:00
|
|
|
crash_reason,
|
2002-02-04 16:58:13 +00:00
|
|
|
r->nip, r->link, r->ctr, r->msr,
|
|
|
|
r->xer, r->ccr,
|
|
|
|
r->gpr[0], r->gpr[1], r->gpr[2], r->gpr[3],
|
|
|
|
r->gpr[4], r->gpr[5], r->gpr[6], r->gpr[7],
|
|
|
|
r->gpr[8], r->gpr[9], r->gpr[10], r->gpr[11],
|
|
|
|
r->gpr[12], r->gpr[13], r->gpr[14], r->gpr[15],
|
|
|
|
r->gpr[16], r->gpr[17], r->gpr[18], r->gpr[19],
|
|
|
|
r->gpr[20], r->gpr[21], r->gpr[22], r->gpr[23],
|
|
|
|
r->gpr[24], r->gpr[25], r->gpr[26], r->gpr[27],
|
|
|
|
r->gpr[28], r->gpr[29], r->gpr[30], r->gpr[31]);
|
|
|
|
exit(1);
|
|
|
|
QuitEmulator();
|
|
|
|
return;
|
|
|
|
} else {
|
|
|
|
// We crashed. Save registers, tell tick thread and loop forever
|
|
|
|
sigsegv_regs = *(sigregs *)r;
|
|
|
|
emul_thread_fatal = true;
|
|
|
|
for (;;) ;
|
|
|
|
}
|
|
|
|
rti:;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2003-12-04 17:26:38 +00:00
|
|
|
/*
|
|
|
|
* Helpers to share 32-bit addressable data with MacOS
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool SheepMem::Init(void)
|
|
|
|
{
|
2003-12-05 13:37:56 +00:00
|
|
|
const int page_size = getpagesize();
|
|
|
|
|
|
|
|
// Allocate SheepShaver globals
|
2003-12-04 17:26:38 +00:00
|
|
|
if (vm_acquire_fixed((char *)base, size) < 0)
|
|
|
|
return false;
|
2003-12-05 12:36:11 +00:00
|
|
|
|
2003-12-05 13:37:56 +00:00
|
|
|
// Allocate page with all bits set to 0
|
2003-12-05 12:36:11 +00:00
|
|
|
zero_page = base + size;
|
|
|
|
if (vm_acquire_fixed((char *)zero_page, page_size) < 0)
|
|
|
|
return false;
|
2003-12-05 12:41:19 +00:00
|
|
|
memset((char *)zero_page, 0, page_size);
|
2003-12-05 12:36:11 +00:00
|
|
|
if (vm_protect((char *)zero_page, page_size, VM_PAGE_READ) < 0)
|
|
|
|
return false;
|
|
|
|
|
2003-12-05 13:37:56 +00:00
|
|
|
#if EMULATED_PPC
|
|
|
|
// Allocate alternate stack for PowerPC interrupt routine
|
|
|
|
sig_stack = zero_page + page_size;
|
|
|
|
if (vm_acquire_fixed((char *)sig_stack, SIG_STACK_SIZE) < 0)
|
|
|
|
return false;
|
|
|
|
#endif
|
|
|
|
|
2003-12-04 17:26:38 +00:00
|
|
|
top = base + size;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SheepMem::Exit(void)
|
|
|
|
{
|
2003-12-05 12:36:11 +00:00
|
|
|
if (top) {
|
2003-12-05 13:37:56 +00:00
|
|
|
const int page_size = getpagesize();
|
|
|
|
|
|
|
|
// Delete SheepShaver globals
|
|
|
|
vm_release((void *)base, size);
|
|
|
|
|
|
|
|
// Delete zero page
|
|
|
|
vm_release((void *)zero_page, page_size);
|
|
|
|
|
|
|
|
#if EMULATED_PPC
|
|
|
|
// Delete alternate stack for PowerPC interrupt routine
|
|
|
|
vm_release((void *)sig_stack, SIG_STACK_SIZE);
|
|
|
|
#endif
|
2003-12-05 12:36:11 +00:00
|
|
|
}
|
2003-12-04 17:26:38 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-02-04 16:58:13 +00:00
|
|
|
/*
|
|
|
|
* Display alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef ENABLE_GTK
|
|
|
|
static void dl_destroyed(void)
|
|
|
|
{
|
|
|
|
gtk_main_quit();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dl_quit(GtkWidget *dialog)
|
|
|
|
{
|
|
|
|
gtk_widget_destroy(dialog);
|
|
|
|
}
|
|
|
|
|
|
|
|
void display_alert(int title_id, int prefix_id, int button_id, const char *text)
|
|
|
|
{
|
|
|
|
char str[256];
|
|
|
|
sprintf(str, GetString(prefix_id), text);
|
|
|
|
|
|
|
|
GtkWidget *dialog = gtk_dialog_new();
|
|
|
|
gtk_window_set_title(GTK_WINDOW(dialog), GetString(title_id));
|
|
|
|
gtk_container_border_width(GTK_CONTAINER(dialog), 5);
|
|
|
|
gtk_widget_set_uposition(GTK_WIDGET(dialog), 100, 150);
|
|
|
|
gtk_signal_connect(GTK_OBJECT(dialog), "destroy", GTK_SIGNAL_FUNC(dl_destroyed), NULL);
|
|
|
|
|
|
|
|
GtkWidget *label = gtk_label_new(str);
|
|
|
|
gtk_widget_show(label);
|
|
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0);
|
|
|
|
|
|
|
|
GtkWidget *button = gtk_button_new_with_label(GetString(button_id));
|
|
|
|
gtk_widget_show(button);
|
|
|
|
gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(dl_quit), GTK_OBJECT(dialog));
|
|
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, FALSE, FALSE, 0);
|
|
|
|
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
|
|
|
|
gtk_widget_grab_default(button);
|
|
|
|
gtk_widget_show(dialog);
|
|
|
|
|
|
|
|
gtk_main();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display error alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
void ErrorAlert(const char *text)
|
|
|
|
{
|
|
|
|
#ifdef ENABLE_GTK
|
|
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
VideoQuitFullScreen();
|
|
|
|
display_alert(STR_ERROR_ALERT_TITLE, STR_GUI_ERROR_PREFIX, STR_QUIT_BUTTON, text);
|
|
|
|
#else
|
|
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display warning alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
void WarningAlert(const char *text)
|
|
|
|
{
|
|
|
|
#ifdef ENABLE_GTK
|
|
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
display_alert(STR_WARNING_ALERT_TITLE, STR_GUI_WARNING_PREFIX, STR_OK_BUTTON, text);
|
|
|
|
#else
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display choice alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool ChoiceAlert(const char *text, const char *pos, const char *neg)
|
|
|
|
{
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
return false; //!!
|
|
|
|
}
|