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Bochs/bochs/main.cc
Stanislav Shwartsman 5873b26a82 Speed up compilation process. 
bochs.h already not include iodev.h which reduces compilation dependences for almost all cpu and fpu files, now cpu files will not be recompiled if iodev includes was changed
2004-06-19 15:20:15 +00:00

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/////////////////////////////////////////////////////////////////////////
// $Id: main.cc,v 1.278 2004-06-19 15:20:06 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "bochs.h"
#include "state_file.h"
#include "iodev/iodev.h"
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#if BX_WITH_SDL
// since SDL redefines main() to SDL_main(), we must include SDL.h so that the
// C language prototype is found. Otherwise SDL_main() will get its name
// mangled and not match what the SDL library is expecting.
#include <SDL/SDL.h>
#if defined(macintosh)
// Work around a bug in SDL 1.2.4 on MacOS X, which redefines getenv to
// SDL_getenv, but then neglects to provide SDL_getenv. It happens
// because we are defining -Dmacintosh.
#undef getenv
#endif
#endif
#if BX_WITH_CARBON
#define Float32 KLUDGE_Float32
#define Float64 KLUDGE_Float64
#include <Carbon/Carbon.h>
#undef Float32
#undef Float64
#endif
// BX_SHARE_PATH should be defined by the makefile. If not, give it
// a value of NULL to avoid compile problems.
#ifndef BX_SHARE_PATH
#define BX_SHARE_PATH NULL
#endif
extern "C" {
#include <signal.h>
}
#ifdef __MINGW32__
void alarm(int);
#endif
#if BX_GUI_SIGHANDLER
bx_bool bx_gui_sighandler = 0;
#endif
#if BX_PROVIDE_DEVICE_MODELS==1
// some prototypes from iodev/
// I want to stay away from including iodev/iodev.h here
Bit32u bx_unmapped_io_read_handler(Bit32u address, unsigned io_len);
void bx_unmapped_io_write_handler(Bit32u address, Bit32u value,
unsigned io_len);
void bx_close_harddrive(void);
#endif
void bx_init_bx_dbg (void);
static char *divider = "========================================================================";
static logfunctions thePluginLog;
logfunctions *pluginlog = &thePluginLog;
bx_startup_flags_t bx_startup_flags;
bx_bool bx_user_quit;
/* typedefs */
#define LOG_THIS genlog->
#if ( BX_PROVIDE_DEVICE_MODELS==1 )
bx_pc_system_c bx_pc_system;
class state_file state_stuff("state_file.out", "options");
#endif
bx_debug_t bx_dbg;
char *bochsrc_filename = NULL;
void bx_print_header ()
{
fprintf (stderr, "%s\n", divider);
char buffer[128];
sprintf (buffer, "Bochs x86 Emulator %s\n", VER_STRING);
bx_center_print (stderr, buffer, 72);
if (REL_STRING[0]) {
sprintf (buffer, "%s\n", REL_STRING);
bx_center_print (stderr, buffer, 72);
}
fprintf (stderr, "%s\n", divider);
}
#if BX_WITH_CARBON
/* Original code by Darrell Walisser - dwaliss1@purdue.edu */
static void setupWorkingDirectory (char *path)
{
char parentdir[MAXPATHLEN];
char *c;
strncpy ( parentdir, path, MAXPATHLEN );
c = (char*) parentdir;
while (*c != '\0') /* go to end */
c++;
while (*c != '/') /* back up to parent */
c--;
*c = '\0'; /* cut off last part (binary name) */
/* chdir to the binary app's parent */
int n;
n = chdir (parentdir);
if (n) BX_PANIC (("failed to change dir to parent"));
/* chdir to the .app's parent */
n = chdir ("../../../");
if (n) BX_PANIC (("failed to change to ../../.."));
}
/* Panic button to display fatal errors.
Completely self contained, can't rely on carbon.cc being available */
static void carbonFatalDialog(const char *error, const char *exposition)
{
DialogRef alertDialog;
CFStringRef cfError;
CFStringRef cfExposition;
DialogItemIndex index;
AlertStdCFStringAlertParamRec alertParam = {0};
fprintf(stderr, "Entering carbonFatalDialog: %s\n", error);
// Init libraries
InitCursor();
// Assemble dialog
cfError = CFStringCreateWithCString(NULL, error, kCFStringEncodingASCII);
if(exposition != NULL)
{
cfExposition = CFStringCreateWithCString(NULL, exposition, kCFStringEncodingASCII);
}
else { cfExposition = NULL; }
alertParam.version = kStdCFStringAlertVersionOne;
alertParam.defaultText = CFSTR("Quit");
alertParam.position = kWindowDefaultPosition;
alertParam.defaultButton = kAlertStdAlertOKButton;
// Display Dialog
CreateStandardAlert(
kAlertStopAlert,
cfError,
cfExposition, /* can be NULL */
&alertParam, /* can be NULL */
&alertDialog);
RunStandardAlert( alertDialog, NULL, &index);
// Cleanup
CFRelease( cfError );
if( cfExposition != NULL ) { CFRelease( cfExposition ); }
}
#endif
int bxmain () {
#ifdef HAVE_LOCALE_H
// Initialize locale (for isprint() and other functions)
setlocale (LC_ALL, "");
#endif
bx_user_quit = 0;
bx_init_siminterface (); // create the SIM object
static jmp_buf context;
if (setjmp (context) == 0) {
SIM->set_quit_context (&context);
if (bx_init_main (bx_startup_flags.argc, bx_startup_flags.argv) < 0)
return 0;
// read a param to decide which config interface to start.
// If one exists, start it. If not, just begin.
bx_param_enum_c *ci_param = SIM->get_param_enum (BXP_SEL_CONFIG_INTERFACE);
char *ci_name = ci_param->get_choice (ci_param->get ());
if (!strcmp(ci_name, "textconfig")) {
#if BX_USE_TEXTCONFIG
init_text_config_interface (); // in textconfig.h
#else
BX_PANIC(("configuration interface 'textconfig' not present"));
#endif
}
#if BX_WITH_WX
else if (!strcmp(ci_name, "wx")) {
PLUG_load_plugin(wx, PLUGTYPE_CORE);
}
#endif
else {
BX_PANIC (("unsupported configuration interface '%s'", ci_name));
}
int status = SIM->configuration_interface (ci_name, CI_START);
if (status == CI_ERR_NO_TEXT_CONSOLE)
BX_PANIC (("Bochs needed the text console, but it was not usable"));
// user quit the config interface, so just quit
} else {
// quit via longjmp
}
SIM->set_quit_context (NULL);
#if defined(WIN32)
if (!bx_user_quit) {
// ask user to press ENTER before exiting, so that they can read messages
// before the console window is closed. This isn't necessary after pressing
// the power button.
fprintf (stderr, "\nBochs is exiting. Press ENTER when you're ready to close this window.\n");
char buf[16];
fgets (buf, sizeof(buf), stdin);
}
#endif
return SIM->get_exit_code ();
}
#if defined(__WXMSW__)
// win32 applications get the whole command line in one long string.
// This function is used to split up the string into argc and argv,
// so that the command line can be used on win32 just like on every
// other platform.
//
// I'm sure other people have written this same function, and they may have
// done it better, but I don't know where to find it. -BBD
#ifndef MAX_ARGLEN
#define MAX_ARGLEN 80
#endif
int split_string_into_argv (
char *string,
int *argc_out,
char **argv,
int max_argv)
{
char *buf0 = new char[strlen(string)+1];
strcpy (buf0, string);
char *buf = buf0;
int in_double_quote = 0, in_single_quote = 0;
for (int i=0; i<max_argv; i++)
argv[i] = NULL;
argv[0] = new char[6];
strcpy (argv[0], "bochs");
int argc = 1;
argv[argc] = new char[MAX_ARGLEN];
char *outp = &argv[argc][0];
// trim leading and trailing spaces
while (*buf==' ') buf++;
char *p;
char *last_nonspace = buf;
for (p=buf; *p; p++) {
if (*p!=' ') last_nonspace = p;
}
if (last_nonspace != buf) *(last_nonspace+1) = 0;
p = buf;
bx_bool done = false;
while (!done) {
//fprintf (stderr, "parsing '%c' with singlequote=%d, dblquote=%d\n", *p, in_single_quote, in_double_quote);
switch (*p) {
case '\0':
done = true;
// fall through into behavior for space
case ' ':
if (in_double_quote || in_single_quote)
goto do_default;
*outp = 0;
//fprintf (stderr, "completed arg %d = '%s'\n", argc, argv[argc]);
argc++;
if (argc >= max_argv) {
fprintf (stderr, "too many arguments. Increase MAX_ARGUMENTS\n");
return -1;
}
argv[argc] = new char[MAX_ARGLEN];
outp = &argv[argc][0];
while (*p==' ') p++;
break;
case '"':
if (in_single_quote) goto do_default;
in_double_quote = !in_double_quote;
p++;
break;
case '\'':
if (in_double_quote) goto do_default;
in_single_quote = !in_single_quote;
p++;
break;
do_default:
default:
if (outp-&argv[argc][0] >= MAX_ARGLEN) {
//fprintf (stderr, "command line arg %d exceeded max size %d\n", argc, MAX_ARGLEN);
return -1;
}
*(outp++) = *(p++);
}
}
if (in_single_quote) {
fprintf (stderr, "end of string with mismatched single quote (')\n");
return -1;
}
if (in_double_quote) {
fprintf (stderr, "end of string with mismatched double quote (\")\n");
return -1;
}
*argc_out = argc;
return 0;
}
#endif /* if defined(__WXMSW__) */
#if defined(__WXMSW__) || (BX_WITH_SDL && defined(WIN32))
// The RedirectIOToConsole() function is copied from an article called "Adding
// Console I/O to a Win32 GUI App" in Windows Developer Journal, December 1997.
// It creates a console window.
//
// NOTE: It could probably be written so that it can safely be called for all
// win32 builds. Right now it appears to have absolutely no error checking:
// for example if AllocConsole returns false we should probably return early.
void RedirectIOToConsole ()
{
int hConHandle;
long lStdHandle;
FILE *fp;
// allocate a console for this app
AllocConsole();
// redirect unbuffered STDOUT to the console
lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "w" );
*stdout = *fp;
setvbuf( stdout, NULL, _IONBF, 0 );
// redirect unbuffered STDIN to the console
lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "r" );
*stdin = *fp;
setvbuf( stdin, NULL, _IONBF, 0 );
// redirect unbuffered STDERR to the console
lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "w" );
*stderr = *fp;
setvbuf( stderr, NULL, _IONBF, 0 );
}
#endif /* if defined(__WXMSW__) || (BX_WITH_SDL && defined(WIN32)) */
#if defined(__WXMSW__)
// only used for wxWindows/win32.
// This works ok in Cygwin with a standard wxWindows compile. In
// VC++ wxWindows must be compiled with -DNOMAIN=1.
int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR m_lpCmdLine, int nCmdShow)
{
bx_startup_flags.hInstance = hInstance;
bx_startup_flags.hPrevInstance = hPrevInstance;
bx_startup_flags.m_lpCmdLine = m_lpCmdLine;
bx_startup_flags.nCmdShow = nCmdShow;
RedirectIOToConsole ();
int max_argv = 20;
bx_startup_flags.argv = (char**) malloc (max_argv * sizeof (char*));
split_string_into_argv (m_lpCmdLine, &bx_startup_flags.argc, bx_startup_flags.argv, max_argv);
return bxmain ();
}
#endif
#if !defined(__WXMSW__)
// normal main function, presently in for all cases except for
// wxWindows under win32.
int main (int argc, char *argv[])
{
bx_startup_flags.argc = argc;
bx_startup_flags.argv = argv;
#if BX_WITH_SDL && defined(WIN32)
// if SDL/win32, try to create a console window.
RedirectIOToConsole ();
#endif
return bxmain ();
}
#endif
void
print_usage ()
{
fprintf(stderr,
"Usage: bochs [flags] [bochsrc options]\n\n"
" -n no configuration file\n"
" -f configfile specify configuration file\n"
" -q quick start (skip configuration interface)\n"
" --help display this help and exit\n\n"
"For information on Bochs configuration file arguments, see the\n"
#if (!defined(WIN32)) && !BX_WITH_MACOS
"bochsrc section in the user documentation or the man page of bochsrc.\n");
#else
"bochsrc section in the user documentation.\n");
#endif
}
int
bx_init_main (int argc, char *argv[])
{
// To deal with initialization order problems inherent in C++, use the macros
// SAFE_GET_IOFUNC and SAFE_GET_GENLOG to retrieve "io" and "genlog" in all
// constructors or functions called by constructors. The macros test for
// NULL and create the object if necessary, then return it. Ensure that io
// and genlog get created, by making one reference to each macro right here.
// All other code can reference io and genlog directly. Because these
// objects are required for logging, and logging is so fundamental to
// knowing what the program is doing, they are never free()d.
SAFE_GET_IOFUNC(); // never freed
SAFE_GET_GENLOG(); // never freed
// initalization must be done early because some destructors expect
// the bx_options to exist by the time they are called.
bx_init_bx_dbg ();
bx_init_options ();
bx_print_header ();
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_RUN_START);
// interpret the args that start with -, like -q, -f, etc.
int arg = 1, load_rcfile=1;
while (arg < argc) {
// parse next arg
if (!strcmp ("--help", argv[arg]) || !strncmp ("-h", argv[arg], 2)) {
print_usage();
SIM->quit_sim (0);
}
else if (!strcmp ("-n", argv[arg])) {
load_rcfile = 0;
}
else if (!strcmp ("-q", argv[arg])) {
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
}
else if (!strcmp ("-f", argv[arg])) {
if (++arg >= argc) BX_PANIC(("-f must be followed by a filename"));
else bochsrc_filename = argv[arg];
}
else if (!strcmp ("-qf", argv[arg])) {
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
if (++arg >= argc) BX_PANIC(("-qf must be followed by a filename"));
else bochsrc_filename = argv[arg];
}
#if BX_WITH_CARBON
else if (!strncmp ("-psn", argv[arg], 4)) {
// "-psn" is passed if we are launched by double-clicking
// ugly hack. I don't know how to open a window to print messages in,
// so put them in /tmp/early-bochs-out.txt. Sorry. -bbd
io->init_log("/tmp/early-bochs-out.txt");
BX_INFO (("I was launched by double clicking. Fixing home directory."));
arg = argc; // ignore all other args.
setupWorkingDirectory (argv[0]);
// there is no stdin/stdout so disable the text-based config interface.
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
char cwd[MAXPATHLEN];
getwd (cwd);
BX_INFO (("Now my working directory is %s", cwd));
// if it was started from command line, there could be some args still.
for (int a=0; a<argc; a++) {
BX_INFO (("argument %d is %s", a, argv[a]));
}
}
#endif
else if (argv[arg][0] == '-') {
print_usage();
BX_PANIC (("command line arg '%s' was not understood", argv[arg]));
}
else {
// the arg did not start with -, so stop interpreting flags
break;
}
arg++;
}
#if BX_WITH_CARBON
if(!getenv("BXSHARE"))
{
CFBundleRef mainBundle;
CFURLRef bxshareDir;
char bxshareDirPath[MAXPATHLEN];
BX_INFO (("fixing default bxshare location ..."));
// set bxshare to the directory that contains our application
mainBundle = CFBundleGetMainBundle();
BX_ASSERT(mainBundle != NULL);
bxshareDir = CFBundleCopyBundleURL(mainBundle);
BX_ASSERT(bxshareDir != NULL);
// translate this to a unix style full path
if(!CFURLGetFileSystemRepresentation(bxshareDir, true, (UInt8 *)bxshareDirPath, MAXPATHLEN))
{
BX_PANIC(("Unable to work out bxshare path! (Most likely path too long!)"));
return -1;
}
char *c;
c = (char*) bxshareDirPath;
while (*c != '\0') /* go to end */
c++;
while (*c != '/') /* back up to parent */
c--;
*c = '\0'; /* cut off last part (binary name) */
setenv("BXSHARE", bxshareDirPath, 1);
BX_INFO (("now my BXSHARE is %s", getenv("BXSHARE")));
CFRelease(bxshareDir);
}
#endif
#if BX_PLUGINS
// set a default plugin path, in case the user did not specify one
#if BX_WITH_CARBON
// if there is no stdin, then we must create our own LTDL_LIBRARY_PATH.
// also if there is no LTDL_LIBRARY_PATH, but we have a bundle since we're here
// This is here so that it is available whenever --with-carbon is defined but
// the above code might be skipped, as in --with-sdl --with-carbon
if(!isatty(STDIN_FILENO) || !getenv("LTDL_LIBRARY_PATH"))
{
CFBundleRef mainBundle;
CFURLRef libDir;
char libDirPath[MAXPATHLEN];
if(!isatty(STDIN_FILENO))
{
// there is no stdin/stdout so disable the text-based config interface.
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
}
BX_INFO (("fixing default lib location ..."));
// locate the lib directory within the application bundle.
// our libs have been placed in bochs.app/Contents/(current platform aka MacOS)/lib
// This isn't quite right, but they are platform specific and we haven't put
// our plugins into true frameworks and bundles either
mainBundle = CFBundleGetMainBundle();
BX_ASSERT(mainBundle != NULL);
libDir = CFBundleCopyAuxiliaryExecutableURL( mainBundle, CFSTR("lib"));
BX_ASSERT(libDir != NULL);
// translate this to a unix style full path
if(!CFURLGetFileSystemRepresentation(libDir, true, (UInt8 *)libDirPath, MAXPATHLEN))
{
BX_PANIC(("Unable to work out ltdl library path within bochs bundle! (Most likely path too long!)"));
return -1;
}
setenv("LTDL_LIBRARY_PATH", libDirPath, 1);
BX_INFO (("now my LTDL_LIBRARY_PATH is %s", getenv("LTDL_LIBRARY_PATH")));
CFRelease(libDir);
}
#elif BX_HAVE_GETENV && BX_HAVE_SETENV
if (getenv("LTDL_LIBRARY_PATH") != NULL) {
BX_INFO (("LTDL_LIBRARY_PATH is set to '%s'", getenv("LTDL_LIBRARY_PATH")));
} else {
BX_INFO (("LTDL_LIBRARY_PATH not set. using compile time default '%s'",
BX_PLUGIN_PATH));
setenv("LTDL_LIBRARY_PATH", BX_PLUGIN_PATH, 1);
}
if (getenv("BXSHARE") != NULL) {
BX_INFO (("BXSHARE is set to '%s'", getenv("BXSHARE")));
} else {
BX_INFO (("BXSHARE not set. using compile time default '%s'",
BX_SHARE_PATH));
setenv("BXSHARE", BX_SHARE_PATH, 1);
}
#else
// we don't have getenv or setenv. Do nothing.
#endif
#endif /* if BX_PLUGINS */
#if !BX_USE_CONFIG_INTERFACE
// this allows people to get quick start behavior by default
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
#endif
int norcfile = 1;
if (load_rcfile) {
/* parse configuration file and command line arguments */
#ifdef WIN32
int length;
if (bochsrc_filename != NULL) {
lstrcpy(bx_startup_flags.initial_dir, bochsrc_filename);
length = lstrlen(bx_startup_flags.initial_dir);
while ((length > 1) && (bx_startup_flags.initial_dir[length-1] != 92)) length--;
bx_startup_flags.initial_dir[length] = 0;
} else {
bx_startup_flags.initial_dir[0] = 0;
}
#endif
if (bochsrc_filename == NULL) bochsrc_filename = bx_find_bochsrc ();
if (bochsrc_filename)
norcfile = bx_read_configuration (bochsrc_filename);
}
if (norcfile) {
// No configuration was loaded, so the current settings are unusable.
// Switch off quick start so that we will drop into the configuration
// interface.
if (SIM->get_param_enum(BXP_BOCHS_START)->get() == BX_QUICK_START) {
if (!SIM->test_for_text_console ())
BX_PANIC(("Unable to start Bochs without a bochsrc.txt and without a text console"));
else
BX_ERROR (("Switching off quick start, because no configuration file was found."));
}
SIM->get_param_enum(BXP_BOCHS_START)->set (BX_LOAD_START);
}
// parse the rest of the command line. This is done after reading the
// configuration file so that the command line arguments can override
// the settings from the file.
if (bx_parse_cmdline (arg, argc, argv)) {
BX_PANIC(("There were errors while parsing the command line"));
return -1;
}
// initialize plugin system. This must happen before we attempt to
// load any modules.
plugin_startup();
return 0;
}
bx_bool load_and_init_display_lib () {
if (bx_gui != NULL) {
// bx_gui has already been filled in. This happens when you start
// the simulation for the second time.
// Also, if you load wxWindows as the configuration interface. Its
// plugin_init will install wxWindows as the bx_gui.
return true;
}
BX_ASSERT (bx_gui == NULL);
bx_param_enum_c *ci_param = SIM->get_param_enum (BXP_SEL_CONFIG_INTERFACE);
char *ci_name = ci_param->get_choice (ci_param->get ());
bx_param_enum_c *gui_param = SIM->get_param_enum(BXP_SEL_DISPLAY_LIBRARY);
char *gui_name = gui_param->get_choice (gui_param->get ());
if (!strcmp(ci_name, "wx")) {
BX_ERROR(("change of the config interface to wx not implemented yet"));
}
if (!strcmp (gui_name, "wx")) {
// they must not have used wx as the configuration interface, or bx_gui
// would already be initialized. Sorry, it doesn't work that way.
BX_ERROR (("wxWindows was not used as the configuration interface, so it cannot be used as the display library"));
// choose another, hopefully different!
gui_param->set (0);
gui_name = gui_param->get_choice (gui_param->get ());
if (!strcmp (gui_name, "wx")) {
BX_PANIC (("no alternative display libraries are available"));
return false;
}
BX_ERROR (("changing display library to '%s' instead", gui_name));
}
#if BX_WITH_AMIGAOS
if (!strcmp (gui_name, "amigaos"))
PLUG_load_plugin (amigaos, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_BEOS
if (!strcmp (gui_name, "beos"))
PLUG_load_plugin (beos, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_CARBON
if (!strcmp (gui_name, "carbon"))
PLUG_load_plugin (carbon, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_MACOS
if (!strcmp (gui_name, "macos"))
PLUG_load_plugin (macintosh, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_NOGUI
if (!strcmp (gui_name, "nogui"))
PLUG_load_plugin (nogui, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_RFB
if (!strcmp (gui_name, "rfb"))
PLUG_load_plugin (rfb, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_SDL
if (!strcmp (gui_name, "sdl"))
PLUG_load_plugin (sdl, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_SVGA
if (!strcmp (gui_name, "svga"))
PLUG_load_plugin (svga, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_TERM
if (!strcmp (gui_name, "term"))
PLUG_load_plugin (term, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_WIN32
if (!strcmp (gui_name, "win32"))
PLUG_load_plugin (win32, PLUGTYPE_OPTIONAL);
#endif
#if BX_WITH_X11
if (!strcmp (gui_name, "x"))
PLUG_load_plugin (x, PLUGTYPE_OPTIONAL);
#endif
#if BX_GUI_SIGHANDLER
// set the flag for guis requiring a GUI sighandler.
// useful when guis are compiled as plugins
// only term for now
if (!strcmp (gui_name, "term")) {
bx_gui_sighandler = 1;
}
#endif
BX_ASSERT (bx_gui != NULL);
return true;
}
int
bx_begin_simulation (int argc, char *argv[])
{
// deal with gui selection
if (!load_and_init_display_lib ()) {
BX_PANIC (("no gui module was loaded"));
return 0;
}
#if BX_GDBSTUB
// If using gdbstub, it will take control and call
// bx_init_hardware() and cpu_loop()
bx_gdbstub_init (argc, argv);
#elif BX_DEBUGGER
// If using the debugger, it will take control and call
// bx_init_hardware() and cpu_loop()
bx_dbg_main(argc, argv);
#else
bx_init_hardware();
if (bx_options.load32bitOSImage.OwhichOS->get ()) {
void bx_load32bitOSimagehack(void);
bx_load32bitOSimagehack();
}
SIM->set_init_done (1);
// update headerbar buttons since drive status can change during init
bx_gui->update_drive_status_buttons ();
// iniialize statusbar and set all items inactive
bx_gui->statusbar_setitem(-1, 0);
// The set handler for mouse_enabled does not actually update the gui
// until init_done is set. This forces the set handler to be called,
// which sets up the mouse enabled GUI-specific stuff correctly.
// Not a great solution but it works. BBD
bx_options.Omouse_enabled->set (bx_options.Omouse_enabled->get ());
if (BX_SMP_PROCESSORS == 1) {
// only one processor, run as fast as possible by not messing with
// quantums and loops.
BX_CPU(0)->cpu_loop(1);
// for one processor, the only reason for cpu_loop to return is
// that kill_bochs_request was set by the GUI interface.
} else {
// SMP simulation: do a few instructions on each processor, then switch
// to another. Increasing quantum speeds up overall performance, but
// reduces granularity of synchronization between processors.
int processor = 0;
int quantum = 5;
while (1) {
// do some instructions in each processor
BX_CPU(processor)->cpu_loop(quantum);
processor = (processor+1) % BX_SMP_PROCESSORS;
if (BX_CPU(0)->kill_bochs_request)
break;
if (processor == 0)
BX_TICKN(quantum);
}
}
#endif
BX_INFO (("cpu loop quit, shutting down simulator"));
bx_atexit ();
return(0);
}
int
bx_init_hardware()
{
// all configuration has been read, now initialize everything.
if (SIM->get_param_enum(BXP_BOCHS_START)->get ()==BX_QUICK_START) {
for (int level=0; level<N_LOGLEV; level++) {
int action = SIM->get_default_log_action (level);
#if !BX_USE_CONFIG_INTERFACE
if (action == ACT_ASK) action = ACT_FATAL;
#endif
io->set_log_action (level, action);
}
}
bx_pc_system.init_ips(bx_options.Oips->get ());
if(bx_options.log.Ofilename->getptr()[0]!='-') {
BX_INFO (("using log file %s", bx_options.log.Ofilename->getptr ()));
io->init_log(bx_options.log.Ofilename->getptr ());
}
io->set_log_prefix(bx_options.log.Oprefix->getptr());
// Output to the log file the cpu settings
// This will by handy for bug reports
BX_INFO(("Bochs x86 Emulator %s", VER_STRING));
BX_INFO((" %s", REL_STRING));
BX_INFO(("System configuration"));
BX_INFO((" processors: %d",BX_SMP_PROCESSORS));
BX_INFO((" A20 line support: %s",BX_SUPPORT_A20?"yes":"no"));
BX_INFO((" APIC support: %s",BX_SUPPORT_APIC?"yes":"no"));
BX_INFO(("CPU configuration"));
BX_INFO((" level: %d",BX_CPU_LEVEL));
BX_INFO((" fpu support: %s",BX_SUPPORT_FPU?"yes":"no"));
BX_INFO((" paging support: %s, tlb enabled: %s",BX_SUPPORT_PAGING?"yes":"no",BX_USE_TLB?"yes":"no"));
BX_INFO((" mmx support: %s",BX_SUPPORT_MMX?"yes":"no"));
BX_INFO((" sse support: %s",BX_SUPPORT_SSE==2?"2":BX_SUPPORT_SSE==1?"1":"no"));
BX_INFO((" v8086 mode support: %s",BX_SUPPORT_V8086_MODE?"yes":"no"));
BX_INFO((" 3dnow! support: %s",BX_SUPPORT_3DNOW?"yes":"no"));
BX_INFO((" PAE support: %s",BX_SupportPAE?"yes":"no"));
BX_INFO((" PGE support: %s",BX_SupportGlobalPages?"yes":"no"));
BX_INFO((" PSE support: %s",BX_SUPPORT_4MEG_PAGES?"yes":"no"));
BX_INFO((" x86-64 support: %s",BX_SUPPORT_X86_64?"yes":"no"));
BX_INFO((" SEP support: %s",BX_SUPPORT_SEP?"yes":"no"));
BX_INFO(("Optimization configuration"));
BX_INFO((" Guest2HostTLB support: %s",BX_SupportGuest2HostTLB?"yes":"no"));
BX_INFO((" RepeatSpeedups support: %s",BX_SupportRepeatSpeedups?"yes":"no"));
BX_INFO((" Icache support: %s",BX_SupportICache?"yes":"no"));
BX_INFO((" Host Asm support: %s",BX_SupportHostAsms?"yes":"no"));
// set up memory and CPU objects
#if BX_SUPPORT_APIC
bx_generic_apic_c::reset_all_ids ();
#endif
// Check if there is a romimage
if (strcmp(bx_options.rom.Opath->getptr (),"") == 0) {
BX_ERROR(("No romimage to load. Is your bochsrc file loaded/valid ?"));
}
#if BX_SMP_PROCESSORS==1
BX_MEM(0)->init_memory(bx_options.memory.Osize->get () * 1024*1024);
// First load the optional ROM images
if (strcmp(bx_options.optrom[0].Opath->getptr (),"") !=0 )
BX_MEM(0)->load_ROM(bx_options.optrom[0].Opath->getptr (), bx_options.optrom[0].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[1].Opath->getptr (),"") !=0 )
BX_MEM(0)->load_ROM(bx_options.optrom[1].Opath->getptr (), bx_options.optrom[1].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[2].Opath->getptr (),"") !=0 )
BX_MEM(0)->load_ROM(bx_options.optrom[2].Opath->getptr (), bx_options.optrom[2].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[3].Opath->getptr (),"") !=0 )
BX_MEM(0)->load_ROM(bx_options.optrom[3].Opath->getptr (), bx_options.optrom[3].Oaddress->get (), 2);
// Then Load the BIOS and VGABIOS
BX_MEM(0)->load_ROM(bx_options.rom.Opath->getptr (), bx_options.rom.Oaddress->get (), 0);
BX_MEM(0)->load_ROM(bx_options.vgarom.Opath->getptr (), 0xc0000, 1);
BX_CPU(0)->init (BX_MEM(0));
BX_CPU(0)->set_cpu_id(0);
#if BX_SUPPORT_APIC
BX_CPU(0)->local_apic.set_id (0);
#endif
BX_CPU(0)->sanity_checks();
BX_INSTR_INIT(0);
BX_CPU(0)->reset(BX_RESET_HARDWARE);
#else
// SMP initialization
bx_mem_array[0] = new BX_MEM_C ();
bx_mem_array[0]->init_memory(bx_options.memory.Osize->get () * 1024*1024);
// First load the optional ROM images
if (strcmp(bx_options.optrom[0].Opath->getptr (),"") !=0 )
bx_mem_array[0]->load_ROM(bx_options.optrom[0].Opath->getptr (), bx_options.optrom[0].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[1].Opath->getptr (),"") !=0 )
bx_mem_array[0]->load_ROM(bx_options.optrom[1].Opath->getptr (), bx_options.optrom[1].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[2].Opath->getptr (),"") !=0 )
bx_mem_array[0]->load_ROM(bx_options.optrom[2].Opath->getptr (), bx_options.optrom[2].Oaddress->get (), 2);
if (strcmp(bx_options.optrom[3].Opath->getptr (),"") !=0 )
bx_mem_array[0]->load_ROM(bx_options.optrom[3].Opath->getptr (), bx_options.optrom[3].Oaddress->get (), 2);
// Then Load the BIOS and VGABIOS
bx_mem_array[0]->load_ROM(bx_options.rom.Opath->getptr (), bx_options.rom.Oaddress->get (), 0);
bx_mem_array[0]->load_ROM(bx_options.vgarom.Opath->getptr (), 0xc0000, 1);
for (int i=0; i<BX_SMP_PROCESSORS; i++) {
BX_CPU(i) = new BX_CPU_C;
BX_CPU(i)->init (bx_mem_array[0]);
// assign apic ID from the index of this loop
// if !BX_SUPPORT_APIC, this will not compile.
BX_CPU(i)->set_cpu_id(i);
BX_CPU(i)->local_apic.set_id(i);
BX_CPU(i)->sanity_checks();
BX_INSTR_INIT(i);
BX_CPU(i)->reset(BX_RESET_HARDWARE);
}
#endif
#if BX_DEBUGGER == 0
DEV_init_devices();
DEV_reset_devices(BX_RESET_HARDWARE);
bx_gui->init_signal_handlers ();
bx_pc_system.start_timers();
#endif
BX_DEBUG(("bx_init_hardware is setting signal handlers"));
// if not using debugger, then we can take control of SIGINT.
#if !BX_DEBUGGER
signal(SIGINT, bx_signal_handler);
#endif
#if BX_SHOW_IPS
#ifndef __MINGW32__
signal(SIGALRM, bx_signal_handler);
#endif
alarm( 1 );
#endif
return(0);
}
void
bx_init_bx_dbg (void)
{
bx_dbg.floppy = 0;
bx_dbg.keyboard = 0;
bx_dbg.video = 0;
bx_dbg.disk = 0;
bx_dbg.pit = 0;
bx_dbg.pic = 0;
bx_dbg.bios = 0;
bx_dbg.cmos = 0;
bx_dbg.a20 = 0;
bx_dbg.interrupts = 0;
bx_dbg.exceptions = 0;
bx_dbg.unsupported = 0;
bx_dbg.temp = 0;
bx_dbg.reset = 0;
bx_dbg.mouse = 0;
bx_dbg.io = 0;
bx_dbg.debugger = 0;
bx_dbg.xms = 0;
bx_dbg.v8086 = 0;
bx_dbg.paging = 0;
bx_dbg.creg = 0;
bx_dbg.dreg = 0;
bx_dbg.dma = 0;
bx_dbg.unsupported_io = 0;
bx_dbg.record_io = 0;
bx_dbg.serial = 0;
bx_dbg.cdrom = 0;
#if BX_MAGIC_BREAKPOINT
bx_dbg.magic_break_enabled = 0;
#endif
}
int
bx_atexit(void)
{
static bx_bool been_here = 0;
if (been_here) return 1; // protect from reentry
been_here = 1;
// in case we ended up in simulation mode, change back to config mode
// so that the user can see any messages left behind on the console.
SIM->set_display_mode (DISP_MODE_CONFIG);
#if BX_PROVIDE_DEVICE_MODELS==1
bx_pc_system.exit();
#endif
#if BX_DEBUGGER == 0
if (SIM && SIM->get_init_done ()) {
for (int cpu=0; cpu<BX_SMP_PROCESSORS; cpu++)
if (BX_CPU(cpu)) BX_CPU(cpu)->atexit();
}
#endif
#if BX_PCI_SUPPORT
if (bx_options.Oi440FXSupport->get ()) {
bx_devices.pluginPciBridge->print_i440fx_state();
}
#endif
// restore signal handling to defaults
#if !BX_DEBUGGER
BX_INFO (("restoring default signal behavior"));
signal(SIGINT, SIG_DFL);
#endif
#if BX_SHOW_IPS
#ifndef __MINGW32__
signal(SIGALRM, SIG_DFL);
#endif
#endif
return 0;
}
void
bx_signal_handler( int signum)
{
// in a multithreaded environment, a signal such as SIGINT can be sent to all
// threads. This function is only intended to handle signals in the
// simulator thread. It will simply return if called from any other thread.
// Otherwise the BX_PANIC() below can be called in multiple threads at
// once, leading to multiple threads trying to display a dialog box,
// leading to GUI deadlock.
if (!SIM->is_sim_thread ()) {
BX_INFO (("bx_signal_handler: ignored sig %d because it wasn't called from the simulator thread", signum));
return;
}
#if BX_GUI_SIGHANDLER
if (bx_gui_sighandler) {
// GUI signal handler gets first priority, if the mask says it's wanted
if ((1<<signum) & bx_gui->get_sighandler_mask ()) {
bx_gui->sighandler (signum);
return;
}
}
#endif
#if BX_SHOW_IPS
extern unsigned long ips_count;
if (signum == SIGALRM ) {
BX_INFO(("ips = %lu", ips_count));
ips_count = 0;
#ifndef __MINGW32__
signal(SIGALRM, bx_signal_handler);
alarm( 1 );
#endif
return;
}
#endif
#if BX_GUI_SIGHANDLER
if (bx_gui_sighandler) {
if ((1<<signum) & bx_gui->get_sighandler_mask ()) {
bx_gui->sighandler (signum);
return;
}
}
#endif
BX_PANIC(("SIGNAL %u caught", signum));
}
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