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main.cc
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/////////////////////////////////////////////////////////////////////////
// $Id: main.cc 13879 2020-06-07 17:32:48Z vruppert $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2020 The Bochs Project
//
// 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#include "bochs.h"
#include "bxversion.h"
#include "gui/textconfig.h"
#include "param_names.h"
#if BX_USE_WIN32CONFIG
#include "gui/win32dialog.h"
#endif
#include "cpu/cpu.h"
#include "iodev/iodev.h"
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#if BX_WITH_SDL || BX_WITH_SDL2
// 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.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
#include <Carbon/Carbon.h>
#endif
extern "C" {
#include <signal.h>
}
#if BX_GUI_SIGHANDLER
bx_bool bx_gui_sighandler = 0;
#endif
int bx_init_main(int argc, char *argv[]);
void bx_init_hardware(void);
void bx_plugin_ctrl_reset(bx_bool init_done);
void bx_init_options(void);
void bx_init_bx_dbg(void);
static const char *divider =
"========================================================================";
bx_startup_flags_t bx_startup_flags;
bx_bool bx_user_quit;
Bit8u bx_cpu_count;
#if BX_SUPPORT_APIC
Bit32u apic_id_mask; // determinted by XAPIC option
bx_bool simulate_xapic;
#endif
/* typedefs */
#define LOG_THIS genlog->
bx_pc_system_c bx_pc_system;
bx_debug_t bx_dbg;
typedef BX_CPU_C *BX_CPU_C_PTR;
#if BX_SUPPORT_SMP
// multiprocessor simulation, we need an array of cpus
BOCHSAPI BX_CPU_C_PTR *bx_cpu_array = NULL;
#else
// single processor simulation, so there's one of everything
BOCHSAPI BX_CPU_C bx_cpu;
#endif
BOCHSAPI BX_MEM_C bx_mem;
char *bochsrc_filename = NULL;
size_t bx_get_timestamp(char *buffer) {
#if VER_SVNFLAG == 1
#ifdef __DATE__
#ifdef __TIME__
sprintf(buffer, "Compiled on %s at %s", __DATE__, __TIME__);
#else
sprintf(buffer, "Compiled on %s", __DATE__);
#endif
#else
buffer[0] = 0;
#endif
#else
// Releases use the timestamp from README file
sprintf(buffer, "Timestamp: %s", REL_TIMESTAMP);
#endif
return strlen(buffer);
}
void bx_print_header() {
char buffer[128];
printf("%s\n", divider);
sprintf(buffer, "Bochs x86 Emulator %s\n", VERSION);
bx_center_print(stdout, buffer, 72);
if (REL_STRING[0]) {
sprintf(buffer, "%s\n", REL_STRING);
bx_center_print(stdout, buffer, 72);
if (bx_get_timestamp(buffer) > 0) {
bx_center_print(stdout, buffer, 72);
printf("\n");
}
}
printf("%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
#if BX_DEBUGGER
void print_tree(bx_param_c *node, int level, bx_bool xml) {
int i;
char tmpstr[BX_PATHNAME_LEN];
for (i = 0; i < level; i++)
dbg_printf(" ");
if (node == NULL) {
dbg_printf("NULL pointer\n");
return;
}
if (xml)
dbg_printf("<%s>", node->get_name());
else
dbg_printf("%s = ", node->get_name());
switch (node->get_type()) {
case BXT_PARAM_NUM:
case BXT_PARAM_BOOL:
case BXT_PARAM_ENUM:
case BXT_PARAM_STRING:
node->dump_param(tmpstr, BX_PATHNAME_LEN, 1);
dbg_printf("%s", tmpstr);
break;
case BXT_LIST: {
if (!xml)
dbg_printf("{");
dbg_printf("\n");
bx_list_c *list = (bx_list_c *)node;
for (i = 0; i < list->get_size(); i++) {
print_tree(list->get(i), level + 1, xml);
}
for (i = 0; i < level; i++)
dbg_printf(" ");
if (!xml)
dbg_printf("}");
break;
}
case BXT_PARAM_DATA:
dbg_printf("'binary data size=%d'", ((bx_shadow_data_c *)node)->get_size());
break;
default:
dbg_printf("(unknown parameter type)");
}
if (xml)
dbg_printf("</%s>", node->get_name());
dbg_printf("\n");
}
#endif
#if BX_ENABLE_STATISTICS
void print_statistics_tree(bx_param_c *node, int level) {
for (int i = 0; i < level; i++)
printf(" ");
if (node == NULL) {
printf("NULL pointer\n");
return;
}
switch (node->get_type()) {
case BXT_PARAM_NUM: {
bx_param_num_c *param = (bx_param_num_c *)node;
printf("%s = " FMT_LL "d\n", node->get_name(), param->get64());
param->set(0); // clear the statistic
} break;
case BXT_PARAM_BOOL:
BX_PANIC(("boolean statistics are not supported !"));
break;
case BXT_PARAM_ENUM:
BX_PANIC(("enum statistics are not supported !"));
break;
case BXT_PARAM_STRING:
BX_PANIC(("string statistics are not supported !"));
break;
case BXT_LIST: {
bx_list_c *list = (bx_list_c *)node;
if (list->get_size() > 0) {
printf("%s = \n", node->get_name());
for (int i = 0; i < list->get_size(); i++) {
print_statistics_tree(list->get(i), level + 1);
}
}
break;
}
case BXT_PARAM_DATA:
BX_PANIC(("binary data statistics are not supported !"));
break;
default:
BX_PANIC(("%s (unknown parameter type)\n", node->get_name()));
break;
}
}
#endif
int bxmain(void) {
#ifdef HAVE_LOCALE_H
// Initialize locale (for isprint() and other functions)
setlocale(LC_ALL, "");
#endif
bx_init_siminterface(); // create the SIM object
static jmp_buf context;
if (setjmp(context) == 0) {
SIM->set_quit_context(&context);
BX_INSTR_INIT_ENV();
if (bx_init_main(bx_startup_flags.argc, bx_startup_flags.argv) < 0) {
BX_INSTR_EXIT_ENV();
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(BXPN_SEL_CONFIG_INTERFACE);
const char *ci_name = ci_param->get_selected();
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
} else if (!strcmp(ci_name, "win32config")) {
#if BX_USE_WIN32CONFIG
init_win32_config_interface();
#else
BX_PANIC(("configuration interface 'win32config' not present"));
#endif
}
#if BX_WITH_WX
else if (!strcmp(ci_name, "wx")) {
PLUG_load_gui_plugin("wx");
}
#endif
else {
BX_PANIC(("unsupported configuration interface '%s'", ci_name));
}
ci_param->set_enabled(0);
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
BX_INSTR_EXIT_ENV();
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 || BX_WITH_SDL2) && 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.
int RedirectIOToConsole() {
int hConHandle;
Bit64s lStdHandle;
FILE *fp;
// allocate a console for this app
FreeConsole();
if (!AllocConsole()) {
MessageBox(NULL, "Failed to create text console", "Error", MB_ICONERROR);
return 0;
}
// redirect unbuffered STDOUT to the console
lStdHandle = (Bit64s)GetStdHandle(STD_OUTPUT_HANDLE);
hConHandle = _open_osfhandle((long)lStdHandle, _O_TEXT);
fp = _fdopen(hConHandle, "w");
*stdout = *fp;
setvbuf(stdout, NULL, _IONBF, 0);
// redirect unbuffered STDIN to the console
lStdHandle = (Bit64s)GetStdHandle(STD_INPUT_HANDLE);
hConHandle = _open_osfhandle((long)lStdHandle, _O_TEXT);
fp = _fdopen(hConHandle, "r");
*stdin = *fp;
setvbuf(stdin, NULL, _IONBF, 0);
// redirect unbuffered STDERR to the console
lStdHandle = (Bit64s)GetStdHandle(STD_ERROR_HANDLE);
hConHandle = _open_osfhandle((long)lStdHandle, _O_TEXT);
fp = _fdopen(hConHandle, "w");
*stderr = *fp;
setvbuf(stderr, NULL, _IONBF, 0);
return 1;
}
#endif /* if defined(__WXMSW__) || ((BX_WITH_SDL || BX_WITH_SDL2) && \
defined(WIN32)) */
#if defined(__WXMSW__)
// only used for wxWidgets/win32.
// This works ok in Cygwin with a standard wxWidgets compile. In
// VC++ wxWidgets 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;
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);
int arg = 1;
bx_bool bx_noconsole = 0;
while (arg < bx_startup_flags.argc) {
if (!strcmp("-noconsole", bx_startup_flags.argv[arg])) {
bx_noconsole = 1;
break;
}
arg++;
}
if (!bx_noconsole) {
if (!RedirectIOToConsole()) {
return 1;
}
SetConsoleTitle("Bochs for Windows (wxWidgets port) - Console");
}
return bxmain();
}
#endif
#if !defined(__WXMSW__)
// normal main function, presently in for all cases except for
// wxWidgets under win32.
int CDECL main(int argc, char *argv[]) {
bx_startup_flags.argc = argc;
bx_startup_flags.argv = argv;
#ifdef WIN32
int arg = 1;
bx_bool bx_noconsole = 0;
while (arg < argc) {
if (!strcmp("-noconsole", argv[arg])) {
bx_noconsole = 1;
break;
}
arg++;
}
if (bx_noconsole) {
FreeConsole();
} else {
#if BX_WITH_SDL || BX_WITH_SDL2
// if SDL/win32, try to create a console window.
if (!RedirectIOToConsole()) {
return 1;
}
#endif
SetConsoleTitle("Bochs for Windows - Console");
}
#endif
return bxmain();
}
#endif
void print_usage(void) {
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"
" -benchmark N run Bochs in benchmark mode for N millions of "
"emulated ticks\n"
#if BX_ENABLE_STATISTICS
" -dumpstats N dump Bochs stats every N millions of emulated ticks\n"
#endif
" -r path restore the Bochs state from path\n"
" -log filename specify Bochs log file name\n"
" -unlock unlock Bochs images leftover from previous session\n"
#if BX_DEBUGGER
" -rc filename execute debugger commands stored in file\n"
" -dbglog filename specify Bochs internal debugger log file name\n"
#endif
#ifdef WIN32
" -noconsole disable console window\n"
#endif
" --help display this help and exit\n"
" --help features display available features / devices and exit\n"
#if BX_CPU_LEVEL > 4
" --help cpu display supported CPU models and exit\n"
#endif
"\nFor 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 bochs config options to exist by the time they are called.
bx_init_bx_dbg();
bx_init_options();
bx_print_header();
SIM->get_param_enum(BXPN_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)
#if defined(WIN32)
|| !strncmp("/?", argv[arg], 2)
#endif
) {
if ((arg + 1) < argc) {
if (!strcmp("features", argv[arg + 1])) {
fprintf(stderr, "Supported features:\n\n");
#if BX_SUPPORT_CLGD54XX
fprintf(stderr, "cirrus\n");
#endif
#if BX_SUPPORT_VOODOO
fprintf(stderr, "voodoo\n");
#endif
#if BX_SUPPORT_PCI
fprintf(stderr, "pci\n");
#endif
#if BX_SUPPORT_PCIDEV
fprintf(stderr, "pcidev\n");
#endif
#if BX_SUPPORT_NE2K
fprintf(stderr, "ne2k\n");
#endif
#if BX_SUPPORT_PCIPNIC
fprintf(stderr, "pcipnic\n");
#endif
#if BX_SUPPORT_E1000
fprintf(stderr, "e1000\n");
#endif
#if BX_SUPPORT_SB16
fprintf(stderr, "sb16\n");
#endif
#if BX_SUPPORT_ES1370
fprintf(stderr, "es1370\n");
#endif
#if BX_SUPPORT_USB_OHCI
fprintf(stderr, "usb_ohci\n");
#endif
#if BX_SUPPORT_USB_UHCI
fprintf(stderr, "usb_uhci\n");
#endif
#if BX_SUPPORT_USB_EHCI
fprintf(stderr, "usb_ehci\n");
#endif
#if BX_SUPPORT_USB_XHCI
fprintf(stderr, "usb_xhci\n");
#endif
#if BX_GDBSTUB
fprintf(stderr, "gdbstub\n");
#endif
fprintf(stderr, "\n");
arg++;
}
#if BX_CPU_LEVEL > 4
else if (!strcmp("cpu", argv[arg + 1])) {
int i = 0;
fprintf(stderr, "Supported CPU models:\n\n");
do {
fprintf(stderr, "%s\n",
SIM->get_param_enum(BXPN_CPU_MODEL)->get_choice(i));
} while (i++ < SIM->get_param_enum(BXPN_CPU_MODEL)->get_max());
fprintf(stderr, "\n");
arg++;
}
#endif
} else {
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(BXPN_BOCHS_START)->set(BX_QUICK_START);
} else if (!strcmp("-log", argv[arg])) {
if (++arg >= argc)
BX_PANIC(("-log must be followed by a filename"));
else
SIM->get_param_string(BXPN_LOG_FILENAME)->set(argv[arg]);
} else if (!strcmp("-unlock", argv[arg])) {
SIM->get_param_bool(BXPN_UNLOCK_IMAGES)->set(1);
}
#if BX_DEBUGGER
else if (!strcmp("-dbglog", argv[arg])) {
if (++arg >= argc)
BX_PANIC(("-dbglog must be followed by a filename"));
else
SIM->get_param_string(BXPN_DEBUGGER_LOG_FILENAME)->set(argv[arg]);
}
#endif
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(BXPN_BOCHS_START)->set(BX_QUICK_START);
if (++arg >= argc)
BX_PANIC(("-qf must be followed by a filename"));
else
bochsrc_filename = argv[arg];
} else if (!strcmp("-benchmark", argv[arg])) {
SIM->get_param_enum(BXPN_BOCHS_START)->set(BX_QUICK_START);
if (++arg >= argc)
BX_PANIC(("-benchmark must be followed by a number"));
else
SIM->get_param_num(BXPN_BOCHS_BENCHMARK)->set(atoi(argv[arg]));
}
#if BX_ENABLE_STATISTICS
else if (!strcmp("-dumpstats", argv[arg])) {
if (++arg >= argc)
BX_PANIC(("-dumpstats must be followed by a number"));
else
SIM->get_param_num(BXPN_DUMP_STATS)->set(atoi(argv[arg]));
}
#endif
else if (!strcmp("-r", argv[arg])) {
if (++arg >= argc)
BX_PANIC(("-r must be followed by a path"));
else {
SIM->get_param_enum(BXPN_BOCHS_START)->set(BX_QUICK_START);
SIM->get_param_bool(BXPN_RESTORE_FLAG)->set(1);
SIM->get_param_string(BXPN_RESTORE_PATH)->set(argv[arg]);
}
}
#ifdef WIN32
else if (!strcmp("-noconsole", argv[arg])) {
// already handled in main() / WinMain()
}
#endif
#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(BXPN_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
#if BX_DEBUGGER
else if (!strcmp("-rc", argv[arg])) {
// process "-rc filename" option, if it exists
if (++arg >= argc)
BX_PANIC(("-rc must be followed by a filename"));
else
bx_dbg_set_rcfile(argv[arg]);
}
#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(BXPN_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);
}
#endif
#endif /* if BX_PLUGINS */
#if BX_HAVE_GETENV && BX_HAVE_SETENV
if (getenv("BXSHARE") != NULL) {
BX_INFO(("BXSHARE is set to '%s'", getenv("BXSHARE")));
} else {
#ifdef WIN32
BX_INFO(("BXSHARE not set. using system default '%s'",
get_builtin_variable("BXSHARE")));
setenv("BXSHARE", get_builtin_variable("BXSHARE"), 1);
#else
BX_INFO(
("BXSHARE not set. using compile time default '%s'", BX_SHARE_PATH));
setenv("BXSHARE", BX_SHARE_PATH, 1);
#endif
}
#else
// we don't have getenv or setenv. Do nothing.
#endif
// initialize plugin system. This must happen before we attempt to
// load any modules.
plugin_startup();
int norcfile = 1;
if (SIM->get_param_bool(BXPN_RESTORE_FLAG)->get()) {
load_rcfile = 0;
norcfile = 0;
} else {
// set up and load pre-defined optional plugins before parsing configuration
bx_plugin_ctrl_reset(0);
}
SIM->init_save_restore();
SIM->init_statistics();
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(BXPN_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(BXPN_BOCHS_START)->set(BX_LOAD_START);
}
if (SIM->get_param_bool(BXPN_RESTORE_FLAG)->get()) {
if (arg < argc) {
BX_ERROR(("WARNING: bochsrc options are ignored in restore mode!"));
}
} else {
// 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;
}
}
return 0;
}
bx_bool load_and_init_display_lib(void) {
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 wxWidgets as the configuration interface. Its
// plugin_init will install wxWidgets as the bx_gui.
return 1;
}
BX_ASSERT(bx_gui == NULL);
bx_param_enum_c *ci_param = SIM->get_param_enum(BXPN_SEL_CONFIG_INTERFACE);
const char *ci_name = ci_param->get_selected();
bx_param_enum_c *gui_param = SIM->get_param_enum(BXPN_SEL_DISPLAY_LIBRARY);
const char *gui_name = gui_param->get_selected();
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(("wxWidgets 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_selected();
if (!strcmp(gui_name, "wx")) {
BX_PANIC(("no alternative display libraries are available"));
return 0;
}
BX_ERROR(("changing display library to '%s' instead", gui_name));
}
PLUG_load_gui_plugin(gui_name);
#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
return (bx_gui != NULL);
}
int bx_begin_simulation(int argc, char *argv[]) {
bx_user_quit = 0;
if (SIM->get_param_bool(BXPN_RESTORE_FLAG)->get()) {
if (!SIM->restore_config()) {
BX_PANIC(("cannot restore configuration"));
SIM->get_param_bool(BXPN_RESTORE_FLAG)->set(0);
}
} else {
// make sure all optional plugins have been loaded