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      1 /* Copyright (C) 2006-2008 The Android Open Source Project
      2 **
      3 ** This software is licensed under the terms of the GNU General Public
      4 ** License version 2, as published by the Free Software Foundation, and
      5 ** may be copied, distributed, and modified under those terms.
      6 **
      7 ** This program is distributed in the hope that it will be useful,
      8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
      9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     10 ** GNU General Public License for more details.
     11 */
     12 
     13 #include <signal.h>
     14 #include <unistd.h>
     15 #include <string.h>
     16 #include <sys/time.h>
     17 #ifdef _WIN32
     18 #include <process.h>
     19 #endif
     20 
     21 #include "sockets.h"
     22 
     23 #include "android/android.h"
     24 #include "qemu-common.h"
     25 #include "sysemu.h"
     26 #include "console.h"
     27 #include "user-events.h"
     28 
     29 #include <SDL.h>
     30 #include <SDL_syswm.h>
     31 
     32 #include "math.h"
     33 
     34 #include "android/charmap.h"
     35 #include "android/utils/debug.h"
     36 #include "android/config.h"
     37 #include "android/config/config.h"
     38 
     39 #include "android/user-config.h"
     40 #include "android/utils/bufprint.h"
     41 #include "android/utils/filelock.h"
     42 #include "android/utils/lineinput.h"
     43 #include "android/utils/path.h"
     44 #include "android/utils/tempfile.h"
     45 
     46 #include "android/main-common.h"
     47 #include "android/help.h"
     48 #include "hw/goldfish_nand.h"
     49 
     50 #include "android/globals.h"
     51 
     52 #include "android/qemulator.h"
     53 #include "android/display.h"
     54 
     55 #include "android/snapshot.h"
     56 
     57 #include "android/framebuffer.h"
     58 #include "iolooper.h"
     59 
     60 AndroidRotation  android_framebuffer_rotation;
     61 
     62 #define  STRINGIFY(x)   _STRINGIFY(x)
     63 #define  _STRINGIFY(x)  #x
     64 
     65 #ifdef ANDROID_SDK_TOOLS_REVISION
     66 #  define  VERSION_STRING  STRINGIFY(ANDROID_SDK_TOOLS_REVISION)".0"
     67 #else
     68 #  define  VERSION_STRING  "standalone"
     69 #endif
     70 
     71 #define  D(...)  do {  if (VERBOSE_CHECK(init)) dprint(__VA_ARGS__); } while (0)
     72 
     73 extern int  control_console_start( int  port );  /* in control.c */
     74 
     75 extern int qemu_milli_needed;
     76 
     77 /* the default device DPI if none is specified by the skin
     78  */
     79 #define  DEFAULT_DEVICE_DPI  165
     80 
     81 #ifdef CONFIG_TRACE
     82 extern void  start_tracing(void);
     83 extern void  stop_tracing(void);
     84 #endif
     85 
     86 unsigned long   android_verbose;
     87 
     88 int qemu_main(int argc, char **argv);
     89 
     90 /* this function dumps the QEMU help */
     91 extern void  help( void );
     92 extern void  emulator_help( void );
     93 
     94 #define  VERBOSE_OPT(str,var)   { str, &var }
     95 
     96 #define  _VERBOSE_TAG(x,y)   { #x, VERBOSE_##x, y },
     97 static const struct { const char*  name; int  flag; const char*  text; }
     98 verbose_options[] = {
     99     VERBOSE_TAG_LIST
    100     { 0, 0, 0 }
    101 };
    102 
    103 void emulator_help( void )
    104 {
    105     STRALLOC_DEFINE(out);
    106     android_help_main(out);
    107     printf( "%.*s", out->n, out->s );
    108     stralloc_reset(out);
    109     exit(1);
    110 }
    111 
    112 /* TODO: Put in shared source file */
    113 static char*
    114 _getFullFilePath( const char* rootPath, const char* fileName )
    115 {
    116     if (path_is_absolute(fileName)) {
    117         return ASTRDUP(fileName);
    118     } else {
    119         char temp[PATH_MAX], *p=temp, *end=p+sizeof(temp);
    120 
    121         p = bufprint(temp, end, "%s/%s", rootPath, fileName);
    122         if (p >= end) {
    123             return NULL;
    124         }
    125         return ASTRDUP(temp);
    126     }
    127 }
    128 
    129 static uint64_t
    130 _adjustPartitionSize( const char*  description,
    131                       uint64_t     imageBytes,
    132                       uint64_t     defaultBytes,
    133                       int          inAndroidBuild )
    134 {
    135     char      temp[64];
    136     unsigned  imageMB;
    137     unsigned  defaultMB;
    138 
    139     if (imageBytes <= defaultBytes)
    140         return defaultBytes;
    141 
    142     imageMB   = convertBytesToMB(imageBytes);
    143     defaultMB = convertBytesToMB(defaultBytes);
    144 
    145     if (imageMB > defaultMB) {
    146         snprintf(temp, sizeof temp, "(%d MB > %d MB)", imageMB, defaultMB);
    147     } else {
    148         snprintf(temp, sizeof temp, "(%" PRIu64 "  bytes > %" PRIu64 " bytes)", imageBytes, defaultBytes);
    149     }
    150 
    151     if (inAndroidBuild) {
    152         dwarning("%s partition size adjusted to match image file %s\n", description, temp);
    153     }
    154 
    155     return convertMBToBytes(imageMB);
    156 }
    157 
    158 int main(int argc, char **argv)
    159 {
    160     char   tmp[MAX_PATH];
    161     char*  tmpend = tmp + sizeof(tmp);
    162     char*  args[128];
    163     int    n;
    164     char*  opt;
    165     /* The emulator always uses the first serial port for kernel messages
    166      * and the second one for qemud. So start at the third if we need one
    167      * for logcat or 'shell'
    168      */
    169     int    serial = 2;
    170     int    shell_serial = 0;
    171 
    172     int    forceArmv7 = 0;
    173 
    174     AndroidHwConfig*  hw;
    175     AvdInfo*          avd;
    176     AConfig*          skinConfig;
    177     char*             skinPath;
    178     int               inAndroidBuild;
    179     uint64_t          defaultPartitionSize = convertMBToBytes(200);
    180 
    181     AndroidOptions  opts[1];
    182     /* net.shared_net_ip boot property value. */
    183     char boot_prop_ip[64];
    184     boot_prop_ip[0] = '\0';
    185 
    186     args[0] = argv[0];
    187 
    188     if ( android_parse_options( &argc, &argv, opts ) < 0 ) {
    189         exit(1);
    190     }
    191 
    192 #ifdef _WIN32
    193     socket_init();
    194 #endif
    195 
    196     handle_ui_options(opts);
    197 
    198     while (argc-- > 1) {
    199         opt = (++argv)[0];
    200 
    201         if(!strcmp(opt, "-qemu")) {
    202             argc--;
    203             argv++;
    204             break;
    205         }
    206 
    207         if (!strcmp(opt, "-help")) {
    208             emulator_help();
    209         }
    210 
    211         if (!strncmp(opt, "-help-",6)) {
    212             STRALLOC_DEFINE(out);
    213             opt += 6;
    214 
    215             if (!strcmp(opt, "all")) {
    216                 android_help_all(out);
    217             }
    218             else if (android_help_for_option(opt, out) == 0) {
    219                 /* ok */
    220             }
    221             else if (android_help_for_topic(opt, out) == 0) {
    222                 /* ok */
    223             }
    224             if (out->n > 0) {
    225                 printf("\n%.*s", out->n, out->s);
    226                 exit(0);
    227             }
    228 
    229             fprintf(stderr, "unknown option: -help-%s\n", opt);
    230             fprintf(stderr, "please use -help for a list of valid topics\n");
    231             exit(1);
    232         }
    233 
    234         if (opt[0] == '-') {
    235             fprintf(stderr, "unknown option: %s\n", opt);
    236             fprintf(stderr, "please use -help for a list of valid options\n");
    237             exit(1);
    238         }
    239 
    240         fprintf(stderr, "invalid command-line parameter: %s.\n", opt);
    241         fprintf(stderr, "Hint: use '@foo' to launch a virtual device named 'foo'.\n");
    242         fprintf(stderr, "please use -help for more information\n");
    243         exit(1);
    244     }
    245 
    246     if (opts->version) {
    247         printf("Android emulator version %s\n"
    248                "Copyright (C) 2006-2011 The Android Open Source Project and many others.\n"
    249                "This program is a derivative of the QEMU CPU emulator (www.qemu.org).\n\n",
    250 #if defined ANDROID_BUILD_ID
    251                VERSION_STRING " (build_id " STRINGIFY(ANDROID_BUILD_ID) ")" );
    252 #else
    253                VERSION_STRING);
    254 #endif
    255         printf("  This software is licensed under the terms of the GNU General Public\n"
    256                "  License version 2, as published by the Free Software Foundation, and\n"
    257                "  may be copied, distributed, and modified under those terms.\n\n"
    258                "  This program is distributed in the hope that it will be useful,\n"
    259                "  but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
    260                "  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
    261                "  GNU General Public License for more details.\n\n");
    262 
    263         exit(0);
    264     }
    265 
    266     if (opts->snapshot_list) {
    267         if (opts->snapstorage == NULL) {
    268             /* Need to find the default snapstorage */
    269             avd = createAVD(opts, &inAndroidBuild);
    270             opts->snapstorage = avdInfo_getSnapStoragePath(avd);
    271             if (opts->snapstorage != NULL) {
    272                 D("autoconfig: -snapstorage %s", opts->snapstorage);
    273             } else {
    274                 if (inAndroidBuild) {
    275                     derror("You must use the -snapstorage <file> option to specify a snapshot storage file!\n");
    276                 } else {
    277                     derror("This AVD doesn't have snapshotting enabled!\n");
    278                 }
    279                 exit(1);
    280             }
    281         }
    282         snapshot_print_and_exit(opts->snapstorage);
    283     }
    284 
    285     sanitizeOptions(opts);
    286 
    287     /* Initialization of UI started with -attach-core should work differently
    288      * than initialization of UI that starts the core. In particular....
    289      */
    290 
    291     /* -charmap is incompatible with -attach-core, because particular
    292      * charmap gets set up in the running core. */
    293     if (android_charmap_setup(opts->charmap)) {
    294         exit(1);
    295     }
    296 
    297     /* Parses options and builds an appropriate AVD. */
    298     avd = android_avdInfo = createAVD(opts, &inAndroidBuild);
    299 
    300     /* get the skin from the virtual device configuration */
    301     if (opts->skindir != NULL) {
    302         if (opts->skin == NULL) {
    303             /* NOTE: Normally handled by sanitizeOptions(), just be safe */
    304             derror("The -skindir <path> option requires a -skin <name> option");
    305             exit(2);
    306         }
    307     } else {
    308         char* skinName;
    309         char* skinDir;
    310 
    311         avdInfo_getSkinInfo(avd, &skinName, &skinDir);
    312 
    313         if (opts->skin == NULL) {
    314             opts->skin = skinName;
    315             D("autoconfig: -skin %s", opts->skin);
    316         } else {
    317             AFREE(skinName);
    318         }
    319 
    320         opts->skindir = skinDir;
    321         D("autoconfig: -skindir %s", opts->skindir);
    322 
    323         /* update the avd hw config from this new skin */
    324         avdInfo_getSkinHardwareIni(avd, opts->skin, opts->skindir);
    325     }
    326 
    327     /* Read hardware configuration */
    328     hw = android_hw;
    329     if (avdInfo_initHwConfig(avd, hw) < 0) {
    330         derror("could not read hardware configuration ?");
    331         exit(1);
    332     }
    333 
    334     if (opts->keyset) {
    335         parse_keyset(opts->keyset, opts);
    336         if (!android_keyset) {
    337             fprintf(stderr,
    338                     "emulator: WARNING: could not find keyset file named '%s',"
    339                     " using defaults instead\n",
    340                     opts->keyset);
    341         }
    342     }
    343     if (!android_keyset) {
    344         parse_keyset("default", opts);
    345         if (!android_keyset) {
    346             android_keyset = skin_keyset_new_from_text( skin_keyset_get_default() );
    347             if (!android_keyset) {
    348                 fprintf(stderr, "PANIC: default keyset file is corrupted !!\n" );
    349                 fprintf(stderr, "PANIC: please update the code in android/skin/keyset.c\n" );
    350                 exit(1);
    351             }
    352             if (!opts->keyset)
    353                 write_default_keyset();
    354         }
    355     }
    356 
    357     if (opts->shared_net_id) {
    358         char*  end;
    359         long   shared_net_id = strtol(opts->shared_net_id, &end, 0);
    360         if (end == NULL || *end || shared_net_id < 1 || shared_net_id > 255) {
    361             fprintf(stderr, "option -shared-net-id must be an integer between 1 and 255\n");
    362             exit(1);
    363         }
    364         snprintf(boot_prop_ip, sizeof(boot_prop_ip),
    365                  "net.shared_net_ip=10.1.2.%ld", shared_net_id);
    366     }
    367 
    368 
    369     user_config_init();
    370     parse_skin_files(opts->skindir, opts->skin, opts, hw,
    371                      &skinConfig, &skinPath);
    372 
    373     if (!opts->netspeed && skin_network_speed) {
    374         D("skin network speed: '%s'", skin_network_speed);
    375         if (strcmp(skin_network_speed, NETWORK_SPEED_DEFAULT) != 0) {
    376             opts->netspeed = (char*)skin_network_speed;
    377         }
    378     }
    379     if (!opts->netdelay && skin_network_delay) {
    380         D("skin network delay: '%s'", skin_network_delay);
    381         if (strcmp(skin_network_delay, NETWORK_DELAY_DEFAULT) != 0) {
    382             opts->netdelay = (char*)skin_network_delay;
    383         }
    384     }
    385 
    386     if (opts->trace) {
    387         char*   tracePath = avdInfo_getTracePath(avd, opts->trace);
    388         int     ret;
    389 
    390         if (tracePath == NULL) {
    391             derror( "bad -trace parameter" );
    392             exit(1);
    393         }
    394         ret = path_mkdir_if_needed( tracePath, 0755 );
    395         if (ret < 0) {
    396             fprintf(stderr, "could not create directory '%s'\n", tmp);
    397             exit(2);
    398         }
    399         opts->trace = tracePath;
    400     }
    401 
    402     /* Update CPU architecture for HW configs created from build dir. */
    403     if (inAndroidBuild) {
    404 #if defined(TARGET_ARM)
    405         free(android_hw->hw_cpu_arch);
    406         android_hw->hw_cpu_arch = ASTRDUP("arm");
    407 #elif defined(TARGET_I386)
    408         free(android_hw->hw_cpu_arch);
    409         android_hw->hw_cpu_arch = ASTRDUP("x86");
    410 #elif defined(TARGET_MIPS)
    411         free(android_hw->hw_cpu_arch);
    412         android_hw->hw_cpu_arch = ASTRDUP("mips");
    413 #endif
    414     }
    415 
    416     n = 1;
    417     /* generate arguments for the underlying qemu main() */
    418     {
    419         char*  kernelFile    = opts->kernel;
    420         int    kernelFileLen;
    421 
    422         if (kernelFile == NULL) {
    423             kernelFile = avdInfo_getKernelPath(avd);
    424             if (kernelFile == NULL) {
    425                 derror( "This AVD's configuration is missing a kernel file!!" );
    426                 exit(2);
    427             }
    428             D("autoconfig: -kernel %s", kernelFile);
    429         }
    430         if (!path_exists(kernelFile)) {
    431             derror( "Invalid or missing kernel image file: %s", kernelFile );
    432             exit(2);
    433         }
    434 
    435         hw->kernel_path = kernelFile;
    436 
    437         /* If the kernel image name ends in "-armv7", then change the cpu
    438          * type automatically. This is a poor man's approach to configuration
    439          * management, but should allow us to get past building ARMv7
    440          * system images with dex preopt pass without introducing too many
    441          * changes to the emulator sources.
    442          *
    443          * XXX:
    444          * A 'proper' change would require adding some sort of hardware-property
    445          * to each AVD config file, then automatically determine its value for
    446          * full Android builds (depending on some environment variable), plus
    447          * some build system changes. I prefer not to do that for now for reasons
    448          * of simplicity.
    449          */
    450          kernelFileLen = strlen(kernelFile);
    451          if (kernelFileLen > 6 && !memcmp(kernelFile + kernelFileLen - 6, "-armv7", 6)) {
    452              forceArmv7 = 1;
    453          }
    454     }
    455 
    456     if (boot_prop_ip[0]) {
    457         args[n++] = "-boot-property";
    458         args[n++] = boot_prop_ip;
    459     }
    460 
    461     if (opts->tcpdump) {
    462         args[n++] = "-tcpdump";
    463         args[n++] = opts->tcpdump;
    464     }
    465 
    466 #ifdef CONFIG_NAND_LIMITS
    467     if (opts->nand_limits) {
    468         args[n++] = "-nand-limits";
    469         args[n++] = opts->nand_limits;
    470     }
    471 #endif
    472 
    473     if (opts->timezone) {
    474         args[n++] = "-timezone";
    475         args[n++] = opts->timezone;
    476     }
    477 
    478     if (opts->netspeed) {
    479         args[n++] = "-netspeed";
    480         args[n++] = opts->netspeed;
    481     }
    482     if (opts->netdelay) {
    483         args[n++] = "-netdelay";
    484         args[n++] = opts->netdelay;
    485     }
    486     if (opts->netfast) {
    487         args[n++] = "-netfast";
    488     }
    489 
    490     if (opts->audio) {
    491         args[n++] = "-audio";
    492         args[n++] = opts->audio;
    493     }
    494 
    495     if (opts->cpu_delay) {
    496         args[n++] = "-cpu-delay";
    497         args[n++] = opts->cpu_delay;
    498     }
    499 
    500     if (opts->dns_server) {
    501         args[n++] = "-dns-server";
    502         args[n++] = opts->dns_server;
    503     }
    504 
    505     /* opts->ramdisk is never NULL (see createAVD) here */
    506     if (opts->ramdisk) {
    507         AFREE(hw->disk_ramdisk_path);
    508         hw->disk_ramdisk_path = ASTRDUP(opts->ramdisk);
    509     }
    510     else if (!hw->disk_ramdisk_path[0]) {
    511         hw->disk_ramdisk_path = avdInfo_getRamdiskPath(avd);
    512         D("autoconfig: -ramdisk %s", hw->disk_ramdisk_path);
    513     }
    514 
    515     /* -partition-size is used to specify the max size of both the system
    516      * and data partition sizes.
    517      */
    518     if (opts->partition_size) {
    519         char*  end;
    520         long   sizeMB = strtol(opts->partition_size, &end, 0);
    521         long   minSizeMB = 10;
    522         long   maxSizeMB = LONG_MAX / ONE_MB;
    523 
    524         if (sizeMB < 0 || *end != 0) {
    525             derror( "-partition-size must be followed by a positive integer" );
    526             exit(1);
    527         }
    528         if (sizeMB < minSizeMB || sizeMB > maxSizeMB) {
    529             derror( "partition-size (%d) must be between %dMB and %dMB",
    530                     sizeMB, minSizeMB, maxSizeMB );
    531             exit(1);
    532         }
    533         defaultPartitionSize = (uint64_t) sizeMB * ONE_MB;
    534     }
    535 
    536 
    537     /** SYSTEM PARTITION **/
    538 
    539     if (opts->sysdir == NULL) {
    540         if (avdInfo_inAndroidBuild(avd)) {
    541             opts->sysdir = ASTRDUP(avdInfo_getContentPath(avd));
    542             D("autoconfig: -sysdir %s", opts->sysdir);
    543         }
    544     }
    545 
    546     if (opts->sysdir != NULL) {
    547         if (!path_exists(opts->sysdir)) {
    548             derror("Directory does not exist: %s", opts->sysdir);
    549             exit(1);
    550         }
    551     }
    552 
    553     {
    554         char*  rwImage   = NULL;
    555         char*  initImage = NULL;
    556 
    557         do {
    558             if (opts->system == NULL) {
    559                 /* If -system is not used, try to find a runtime system image
    560                 * (i.e. system-qemu.img) in the content directory.
    561                 */
    562                 rwImage = avdInfo_getSystemImagePath(avd);
    563                 if (rwImage != NULL) {
    564                     break;
    565                 }
    566                 /* Otherwise, try to find the initial system image */
    567                 initImage = avdInfo_getSystemInitImagePath(avd);
    568                 if (initImage == NULL) {
    569                     derror("No initial system image for this configuration!");
    570                     exit(1);
    571                 }
    572                 break;
    573             }
    574 
    575             /* If -system <name> is used, use it to find the initial image */
    576             if (opts->sysdir != NULL && !path_exists(opts->system)) {
    577                 initImage = _getFullFilePath(opts->sysdir, opts->system);
    578             } else {
    579                 initImage = ASTRDUP(opts->system);
    580             }
    581             if (!path_exists(initImage)) {
    582                 derror("System image file doesn't exist: %s", initImage);
    583                 exit(1);
    584             }
    585 
    586         } while (0);
    587 
    588         if (rwImage != NULL) {
    589             /* Use the read/write image file directly */
    590             hw->disk_systemPartition_path     = rwImage;
    591             hw->disk_systemPartition_initPath = NULL;
    592             D("Using direct system image: %s", rwImage);
    593         } else if (initImage != NULL) {
    594             hw->disk_systemPartition_path = NULL;
    595             hw->disk_systemPartition_initPath = initImage;
    596             D("Using initial system image: %s", initImage);
    597         }
    598 
    599         /* Check the size of the system partition image.
    600         * If we have an AVD, it must be smaller than
    601         * the disk.systemPartition.size hardware property.
    602         *
    603         * Otherwise, we need to adjust the systemPartitionSize
    604         * automatically, and print a warning.
    605         *
    606         */
    607         const char* systemImage = hw->disk_systemPartition_path;
    608         uint64_t    systemBytes;
    609 
    610         if (systemImage == NULL)
    611             systemImage = hw->disk_systemPartition_initPath;
    612 
    613         if (path_get_size(systemImage, &systemBytes) < 0) {
    614             derror("Missing system image: %s", systemImage);
    615             exit(1);
    616         }
    617 
    618         hw->disk_systemPartition_size =
    619             _adjustPartitionSize("system", systemBytes, defaultPartitionSize,
    620                                  avdInfo_inAndroidBuild(avd));
    621     }
    622 
    623     /** DATA PARTITION **/
    624 
    625     if (opts->datadir) {
    626         if (!path_exists(opts->datadir)) {
    627             derror("Invalid -datadir directory: %s", opts->datadir);
    628         }
    629     }
    630 
    631     {
    632         char*  dataImage = NULL;
    633         char*  initImage = NULL;
    634 
    635         do {
    636             if (!opts->data) {
    637                 dataImage = avdInfo_getDataImagePath(avd);
    638                 if (dataImage != NULL) {
    639                     D("autoconfig: -data %s", dataImage);
    640                     break;
    641                 }
    642                 dataImage = avdInfo_getDefaultDataImagePath(avd);
    643                 if (dataImage == NULL) {
    644                     derror("No data image path for this configuration!");
    645                     exit (1);
    646                 }
    647                 opts->wipe_data = 1;
    648                 break;
    649             }
    650 
    651             if (opts->datadir) {
    652                 dataImage = _getFullFilePath(opts->datadir, opts->data);
    653             } else {
    654                 dataImage = ASTRDUP(opts->data);
    655             }
    656         } while (0);
    657 
    658         if (opts->initdata != NULL) {
    659             initImage = ASTRDUP(opts->initdata);
    660             if (!path_exists(initImage)) {
    661                 derror("Invalid initial data image path: %s", initImage);
    662                 exit(1);
    663             }
    664         } else {
    665             initImage = avdInfo_getDataInitImagePath(avd);
    666             D("autoconfig: -initdata %s", initImage);
    667         }
    668 
    669         hw->disk_dataPartition_path = dataImage;
    670         if (opts->wipe_data) {
    671             hw->disk_dataPartition_initPath = initImage;
    672         } else {
    673             hw->disk_dataPartition_initPath = NULL;
    674         }
    675 
    676         uint64_t     defaultBytes =
    677                 hw->disk_dataPartition_size == 0 ?
    678                 defaultPartitionSize :
    679                 hw->disk_dataPartition_size;
    680         uint64_t     dataBytes;
    681         const char*  dataPath = hw->disk_dataPartition_initPath;
    682 
    683         if (dataPath == NULL)
    684             dataPath = hw->disk_dataPartition_path;
    685 
    686         path_get_size(dataPath, &dataBytes);
    687 
    688         hw->disk_dataPartition_size =
    689             _adjustPartitionSize("data", dataBytes, defaultBytes,
    690                                  avdInfo_inAndroidBuild(avd));
    691     }
    692 
    693     /** CACHE PARTITION **/
    694 
    695     if (opts->no_cache) {
    696         /* No cache partition at all */
    697         hw->disk_cachePartition = 0;
    698     }
    699     else if (!hw->disk_cachePartition) {
    700         if (opts->cache) {
    701             dwarning( "Emulated hardware doesn't support a cache partition. -cache option ignored!" );
    702             opts->cache = NULL;
    703         }
    704     }
    705     else
    706     {
    707         if (!opts->cache) {
    708             /* Find the current cache partition file */
    709             opts->cache = avdInfo_getCachePath(avd);
    710             if (opts->cache == NULL) {
    711                 /* The file does not exists, we will force its creation
    712                  * if we are not in the Android build system. Otherwise,
    713                  * a temporary file will be used.
    714                  */
    715                 if (!avdInfo_inAndroidBuild(avd)) {
    716                     opts->cache = avdInfo_getDefaultCachePath(avd);
    717                 }
    718             }
    719             if (opts->cache) {
    720                 D("autoconfig: -cache %s", opts->cache);
    721             }
    722         }
    723 
    724         if (opts->cache) {
    725             hw->disk_cachePartition_path = ASTRDUP(opts->cache);
    726         }
    727     }
    728 
    729     if (hw->disk_cachePartition_path && opts->cache_size) {
    730         /* Set cache partition size per user options. */
    731         char*  end;
    732         long   sizeMB = strtol(opts->cache_size, &end, 0);
    733 
    734         if (sizeMB < 0 || *end != 0) {
    735             derror( "-cache-size must be followed by a positive integer" );
    736             exit(1);
    737         }
    738         hw->disk_cachePartition_size = (uint64_t) sizeMB * ONE_MB;
    739     }
    740 
    741     /** SD CARD PARTITION */
    742 
    743     if (!hw->hw_sdCard) {
    744         /* No SD Card emulation, so -sdcard will be ignored */
    745         if (opts->sdcard) {
    746             dwarning( "Emulated hardware doesn't support SD Cards. -sdcard option ignored." );
    747             opts->sdcard = NULL;
    748         }
    749     } else {
    750         /* Auto-configure -sdcard if it is not available */
    751         if (!opts->sdcard) {
    752             do {
    753                 /* If -datadir <path> is used, look for a sdcard.img file here */
    754                 if (opts->datadir) {
    755                     bufprint(tmp, tmpend, "%s/%s", opts->datadir, "system.img");
    756                     if (path_exists(tmp)) {
    757                         opts->sdcard = strdup(tmp);
    758                         break;
    759                     }
    760                 }
    761 
    762                 /* Otherwise, look at the AVD's content */
    763                 opts->sdcard = avdInfo_getSdCardPath(avd);
    764                 if (opts->sdcard != NULL) {
    765                     break;
    766                 }
    767 
    768                 /* Nothing */
    769             } while (0);
    770 
    771             if (opts->sdcard) {
    772                 D("autoconfig: -sdcard %s", opts->sdcard);
    773             }
    774         }
    775     }
    776 
    777     if(opts->sdcard) {
    778         uint64_t  size;
    779         if (path_get_size(opts->sdcard, &size) == 0) {
    780             /* see if we have an sdcard image.  get its size if it exists */
    781             /* due to what looks like limitations of the MMC protocol, one has
    782              * to use an SD Card image that is equal or larger than 9 MB
    783              */
    784             if (size < 9*1024*1024ULL) {
    785                 fprintf(stderr, "### WARNING: SD Card files must be at least 9MB, ignoring '%s'\n", opts->sdcard);
    786             } else {
    787                 hw->hw_sdCard_path = ASTRDUP(opts->sdcard);
    788             }
    789         } else {
    790             dwarning("no SD Card image at '%s'", opts->sdcard);
    791         }
    792     }
    793 
    794 
    795     /** SNAPSHOT STORAGE HANDLING */
    796 
    797     /* Determine snapstorage path. -no-snapstorage disables all snapshotting
    798      * support. This means you can't resume a snapshot at load, save it at
    799      * exit, or even load/save them dynamically at runtime with the console.
    800      */
    801     if (opts->no_snapstorage) {
    802 
    803         if (opts->snapshot) {
    804             dwarning("ignoring -snapshot option due to the use of -no-snapstorage");
    805             opts->snapshot = NULL;
    806         }
    807 
    808         if (opts->snapstorage) {
    809             dwarning("ignoring -snapstorage option due to the use of -no-snapstorage");
    810             opts->snapstorage = NULL;
    811         }
    812     }
    813     else
    814     {
    815         if (!opts->snapstorage && avdInfo_getSnapshotPresent(avd)) {
    816             opts->snapstorage = avdInfo_getSnapStoragePath(avd);
    817             if (opts->snapstorage != NULL) {
    818                 D("autoconfig: -snapstorage %s", opts->snapstorage);
    819             }
    820         }
    821 
    822         if (opts->snapstorage && !path_exists(opts->snapstorage)) {
    823             D("no image at '%s', state snapshots disabled", opts->snapstorage);
    824             opts->snapstorage = NULL;
    825         }
    826     }
    827 
    828     /* If we have a valid snapshot storage path */
    829 
    830     if (opts->snapstorage) {
    831 
    832         hw->disk_snapStorage_path = ASTRDUP(opts->snapstorage);
    833 
    834         /* -no-snapshot is equivalent to using both -no-snapshot-load
    835         * and -no-snapshot-save. You can still load/save snapshots dynamically
    836         * from the console though.
    837         */
    838         if (opts->no_snapshot) {
    839 
    840             opts->no_snapshot_load = 1;
    841             opts->no_snapshot_save = 1;
    842 
    843             if (opts->snapshot) {
    844                 dwarning("ignoring -snapshot option due to the use of -no-snapshot.");
    845             }
    846         }
    847 
    848         if (!opts->no_snapshot_load || !opts->no_snapshot_save) {
    849             if (opts->snapshot == NULL) {
    850                 opts->snapshot = "default-boot";
    851                 D("autoconfig: -snapshot %s", opts->snapshot);
    852             }
    853         }
    854 
    855         /* We still use QEMU command-line options for the following since
    856         * they can change from one invokation to the next and don't really
    857         * correspond to the hardware configuration itself.
    858         */
    859         if (!opts->no_snapshot_load) {
    860             args[n++] = "-loadvm";
    861             args[n++] = ASTRDUP(opts->snapshot);
    862         }
    863 
    864         if (!opts->no_snapshot_save) {
    865             args[n++] = "-savevm-on-exit";
    866             args[n++] = ASTRDUP(opts->snapshot);
    867         }
    868 
    869         if (opts->no_snapshot_update_time) {
    870             args[n++] = "-snapshot-no-time-update";
    871         }
    872     }
    873 
    874     if (!opts->logcat || opts->logcat[0] == 0) {
    875         opts->logcat = getenv("ANDROID_LOG_TAGS");
    876         if (opts->logcat && opts->logcat[0] == 0)
    877             opts->logcat = NULL;
    878     }
    879 
    880     /* we always send the kernel messages from ttyS0 to android_kmsg */
    881     if (opts->show_kernel) {
    882         args[n++] = "-show-kernel";
    883     }
    884 
    885     /* XXXX: TODO: implement -shell and -logcat through qemud instead */
    886     if (!opts->shell_serial) {
    887 #ifdef _WIN32
    888         opts->shell_serial = "con:";
    889 #else
    890         opts->shell_serial = "stdio";
    891 #endif
    892     }
    893     else
    894         opts->shell = 1;
    895 
    896     if (opts->shell || opts->logcat) {
    897         args[n++] = "-serial";
    898         args[n++] = opts->shell_serial;
    899         shell_serial = serial++;
    900     }
    901 
    902     if (opts->radio) {
    903         args[n++] = "-radio";
    904         args[n++] = opts->radio;
    905     }
    906 
    907     if (opts->gps) {
    908         args[n++] = "-gps";
    909         args[n++] = opts->gps;
    910     }
    911 
    912     if (opts->memory) {
    913         char*  end;
    914         long   ramSize = strtol(opts->memory, &end, 0);
    915         if (ramSize < 0 || *end != 0) {
    916             derror( "-memory must be followed by a positive integer" );
    917             exit(1);
    918         }
    919         if (ramSize < 32 || ramSize > 4096) {
    920             derror( "physical memory size must be between 32 and 4096 MB" );
    921             exit(1);
    922         }
    923         hw->hw_ramSize = ramSize;
    924     }
    925     if (!opts->memory) {
    926         int ramSize = hw->hw_ramSize;
    927         if (ramSize <= 0) {
    928             /* Compute the default RAM size based on the size of screen.
    929              * This is only used when the skin doesn't provide the ram
    930              * size through its hardware.ini (i.e. legacy ones) or when
    931              * in the full Android build system.
    932              */
    933             int64_t pixels  = hw->hw_lcd_width * hw->hw_lcd_height;
    934             /* The following thresholds are a bit liberal, but we
    935              * essentially want to ensure the following mappings:
    936              *
    937              *   320x480 -> 96
    938              *   800x600 -> 128
    939              *  1024x768 -> 256
    940              *
    941              * These are just simple heuristics, they could change in
    942              * the future.
    943              */
    944             if (pixels <= 250000)
    945                 ramSize = 96;
    946             else if (pixels <= 500000)
    947                 ramSize = 128;
    948             else
    949                 ramSize = 256;
    950         }
    951         hw->hw_ramSize = ramSize;
    952     }
    953 
    954     D("Physical RAM size: %dMB\n", hw->hw_ramSize);
    955 
    956     if (hw->vm_heapSize == 0) {
    957         /* Compute the default heap size based on the RAM size.
    958          * Essentially, we want to ensure the following liberal mappings:
    959          *
    960          *   96MB RAM -> 16MB heap
    961          *  128MB RAM -> 24MB heap
    962          *  256MB RAM -> 48MB heap
    963          */
    964         int  ramSize = hw->hw_ramSize;
    965         int  heapSize;
    966 
    967         if (ramSize < 100)
    968             heapSize = 16;
    969         else if (ramSize < 192)
    970             heapSize = 24;
    971         else
    972             heapSize = 48;
    973 
    974         hw->vm_heapSize = heapSize;
    975     }
    976 
    977     if (opts->trace) {
    978         args[n++] = "-trace";
    979         args[n++] = opts->trace;
    980         args[n++] = "-tracing";
    981         args[n++] = "off";
    982     }
    983 
    984     /* Pass boot properties to the core. */
    985     if (opts->prop != NULL) {
    986         ParamList*  pl = opts->prop;
    987         for ( ; pl != NULL; pl = pl->next ) {
    988             args[n++] = "-boot-property";
    989             args[n++] = pl->param;
    990         }
    991     }
    992 
    993     /* Setup the kernel init options
    994      */
    995     {
    996         static char  params[1024];
    997         char        *p = params, *end = p + sizeof(params);
    998 
    999         /* Don't worry about having a leading space here, this is handled
   1000          * by the core later. */
   1001 
   1002 #ifdef TARGET_I386
   1003         p = bufprint(p, end, " androidboot.hardware=goldfish");
   1004         p = bufprint(p, end, " clocksource=pit");
   1005 #endif
   1006 
   1007         if (opts->shell || opts->logcat) {
   1008             p = bufprint(p, end, " androidboot.console=ttyS%d", shell_serial );
   1009         }
   1010 
   1011         if (opts->trace) {
   1012             p = bufprint(p, end, " android.tracing=1");
   1013         }
   1014 
   1015         if (!opts->no_jni) {
   1016             p = bufprint(p, end, " android.checkjni=1");
   1017         }
   1018 
   1019         if (opts->no_boot_anim) {
   1020             p = bufprint( p, end, " android.bootanim=0" );
   1021         }
   1022 
   1023         if (opts->logcat) {
   1024             char*  q = bufprint(p, end, " androidboot.logcat=%s", opts->logcat);
   1025 
   1026             if (q < end) {
   1027                 /* replace any space by a comma ! */
   1028                 {
   1029                     int  nn;
   1030                     for (nn = 1; p[nn] != 0; nn++)
   1031                         if (p[nn] == ' ' || p[nn] == '\t')
   1032                             p[nn] = ',';
   1033                     p += nn;
   1034                 }
   1035             }
   1036             p = q;
   1037         }
   1038 
   1039         if (opts->bootchart) {
   1040             p = bufprint(p, end, " androidboot.bootchart=%s", opts->bootchart);
   1041         }
   1042 
   1043         if (p >= end) {
   1044             fprintf(stderr, "### ERROR: kernel parameters too long\n");
   1045             exit(1);
   1046         }
   1047 
   1048         hw->kernel_parameters = strdup(params);
   1049     }
   1050 
   1051     if (opts->ports) {
   1052         args[n++] = "-android-ports";
   1053         args[n++] = opts->ports;
   1054     }
   1055 
   1056     if (opts->port) {
   1057         args[n++] = "-android-port";
   1058         args[n++] = opts->port;
   1059     }
   1060 
   1061     if (opts->report_console) {
   1062         args[n++] = "-android-report-console";
   1063         args[n++] = opts->report_console;
   1064     }
   1065 
   1066     if (opts->http_proxy) {
   1067         args[n++] = "-http-proxy";
   1068         args[n++] = opts->http_proxy;
   1069     }
   1070 
   1071     if (!opts->charmap) {
   1072         /* Try to find a valid charmap name */
   1073         char* charmap = avdInfo_getCharmapFile(avd, hw->hw_keyboard_charmap);
   1074         if (charmap != NULL) {
   1075             D("autoconfig: -charmap %s", charmap);
   1076             opts->charmap = charmap;
   1077         }
   1078     }
   1079 
   1080     if (opts->charmap) {
   1081         char charmap_name[AKEYCHARMAP_NAME_SIZE];
   1082 
   1083         if (!path_exists(opts->charmap)) {
   1084             derror("Charmap file does not exist: %s", opts->charmap);
   1085             exit(1);
   1086         }
   1087         /* We need to store the charmap name in the hardware configuration.
   1088          * However, the charmap file itself is only used by the UI component
   1089          * and doesn't need to be set to the emulation engine.
   1090          */
   1091         kcm_extract_charmap_name(opts->charmap, charmap_name,
   1092                                  sizeof(charmap_name));
   1093         AFREE(hw->hw_keyboard_charmap);
   1094         hw->hw_keyboard_charmap = ASTRDUP(charmap_name);
   1095     }
   1096 
   1097     if (opts->memcheck) {
   1098         args[n++] = "-android-memcheck";
   1099         args[n++] = opts->memcheck;
   1100     }
   1101 
   1102     if (opts->gpu) {
   1103         const char* gpu = opts->gpu;
   1104         if (!strcmp(gpu,"on") || !strcmp(gpu,"enable")) {
   1105             hw->hw_gpu_enabled = 1;
   1106         } else if (!strcmp(gpu,"off") || !strcmp(gpu,"disable")) {
   1107             hw->hw_gpu_enabled = 0;
   1108         } else if (!strcmp(gpu,"auto")) {
   1109             /* Nothing to do */
   1110         } else {
   1111             derror("Invalid value for -gpu <mode> parameter: %s\n", gpu);
   1112             derror("Valid values are: on, off or auto\n");
   1113             exit(1);
   1114         }
   1115     }
   1116 
   1117     /* Quit emulator on condition that both, gpu and snapstorage are on. This is
   1118      * a temporary solution preventing the emulator from crashing until GPU state
   1119      * can be properly saved / resored in snapshot file. */
   1120     if (hw->hw_gpu_enabled && opts->snapstorage && (!opts->no_snapshot_load ||
   1121                                                     !opts->no_snapshot_save)) {
   1122         derror("Snapshots and gpu are mutually exclusive at this point. Please turn one of them off, and restart the emulator.");
   1123         exit(1);
   1124     }
   1125 
   1126     /* Deal with camera emulation */
   1127     if (opts->webcam_list) {
   1128         /* List connected webcameras */
   1129         args[n++] = "-list-webcam";
   1130     }
   1131 
   1132     if (opts->camera_back) {
   1133         /* Validate parameter. */
   1134         if (memcmp(opts->camera_back, "webcam", 6) &&
   1135             strcmp(opts->camera_back, "emulated") &&
   1136             strcmp(opts->camera_back, "none")) {
   1137             derror("Invalid value for -camera-back <mode> parameter: %s\n"
   1138                    "Valid values are: 'emulated', 'webcam<N>', or 'none'\n",
   1139                    opts->camera_back);
   1140             exit(1);
   1141         }
   1142         hw->hw_camera_back = ASTRDUP(opts->camera_back);
   1143     }
   1144 
   1145     if (opts->camera_front) {
   1146         /* Validate parameter. */
   1147         if (memcmp(opts->camera_front, "webcam", 6) &&
   1148             strcmp(opts->camera_front, "emulated") &&
   1149             strcmp(opts->camera_front, "none")) {
   1150             derror("Invalid value for -camera-front <mode> parameter: %s\n"
   1151                    "Valid values are: 'emulated', 'webcam<N>', or 'none'\n",
   1152                    opts->camera_front);
   1153             exit(1);
   1154         }
   1155         hw->hw_camera_front = ASTRDUP(opts->camera_front);
   1156     }
   1157 
   1158     /* physical memory is now in hw->hw_ramSize */
   1159 
   1160     hw->avd_name = ASTRDUP(avdInfo_getName(avd));
   1161 
   1162     /* Set up the interfaces for inter-emulator networking */
   1163     if (opts->shared_net_id) {
   1164         unsigned int shared_net_id = atoi(opts->shared_net_id);
   1165         char nic[37];
   1166 
   1167         args[n++] = "-net";
   1168         args[n++] = "nic,vlan=0";
   1169         args[n++] = "-net";
   1170         args[n++] = "user,vlan=0";
   1171 
   1172         args[n++] = "-net";
   1173         snprintf(nic, sizeof nic, "nic,vlan=1,macaddr=52:54:00:12:34:%02x", shared_net_id);
   1174         args[n++] = strdup(nic);
   1175         args[n++] = "-net";
   1176         args[n++] = "socket,vlan=1,mcast=230.0.0.10:1234";
   1177     }
   1178 
   1179     /* Setup screen emulation */
   1180     if (opts->screen) {
   1181         if (strcmp(opts->screen, "touch") &&
   1182             strcmp(opts->screen, "multi-touch") &&
   1183             strcmp(opts->screen, "no-touch")) {
   1184 
   1185             derror("Invalid value for -screen <mode> parameter: %s\n"
   1186                    "Valid values are: touch, multi-touch, or no-touch\n",
   1187                    opts->screen);
   1188             exit(1);
   1189         }
   1190         hw->hw_screen = ASTRDUP(opts->screen);
   1191     }
   1192 
   1193     while(argc-- > 0) {
   1194         args[n++] = *argv++;
   1195     }
   1196     args[n] = 0;
   1197 
   1198     /* If the target ABI is armeabi-v7a, we can auto-detect the cpu model
   1199      * as a cortex-a8, instead of the default (arm926) which only emulates
   1200      * an ARMv5TE CPU.
   1201      */
   1202     if (!forceArmv7 && hw->hw_cpu_model[0] == '\0')
   1203     {
   1204         char* abi = avdInfo_getTargetAbi(avd);
   1205         if (abi != NULL) {
   1206             if (!strcmp(abi, "armeabi-v7a")) {
   1207                 forceArmv7 = 1;
   1208             }
   1209             AFREE(abi);
   1210         }
   1211     }
   1212 
   1213     if (forceArmv7 != 0) {
   1214         AFREE(hw->hw_cpu_model);
   1215         hw->hw_cpu_model = ASTRDUP("cortex-a8");
   1216         D("Auto-config: -qemu -cpu %s", hw->hw_cpu_model);
   1217     }
   1218 
   1219     /* Generate a hardware-qemu.ini for this AVD. The real hardware
   1220      * configuration is ususally stored in several files, e.g. the AVD's
   1221      * config.ini plus the skin-specific hardware.ini.
   1222      *
   1223      * The new file will group all definitions and will be used to
   1224      * launch the core with the -android-hw <file> option.
   1225      */
   1226     {
   1227         const char* coreHwIniPath = avdInfo_getCoreHwIniPath(avd);
   1228         IniFile*    hwIni         = iniFile_newFromMemory("", NULL);
   1229         androidHwConfig_write(hw, hwIni);
   1230 
   1231         if (filelock_create(coreHwIniPath) == NULL) {
   1232             /* The AVD is already in use, we still support this as an
   1233              * experimental feature. Use a temporary hardware-qemu.ini
   1234              * file though to avoid overwriting the existing one. */
   1235              TempFile*  tempIni = tempfile_create();
   1236              coreHwIniPath = tempfile_path(tempIni);
   1237         }
   1238 
   1239         /* While saving HW config, ignore valueless entries. This will not break
   1240          * anything, but will significantly simplify comparing the current HW
   1241          * config with the one that has been associated with a snapshot (in case
   1242          * VM starts from a snapshot for this instance of emulator). */
   1243         if (iniFile_saveToFileClean(hwIni, coreHwIniPath) < 0) {
   1244             derror("Could not write hardware.ini to %s: %s", coreHwIniPath, strerror(errno));
   1245             exit(2);
   1246         }
   1247         args[n++] = "-android-hw";
   1248         args[n++] = strdup(coreHwIniPath);
   1249 
   1250         /* In verbose mode, dump the file's content */
   1251         if (VERBOSE_CHECK(init)) {
   1252             FILE* file = fopen(coreHwIniPath, "rt");
   1253             if (file == NULL) {
   1254                 derror("Could not open hardware configuration file: %s\n",
   1255                        coreHwIniPath);
   1256             } else {
   1257                 LineInput* input = lineInput_newFromStdFile(file);
   1258                 const char* line;
   1259                 printf("Content of hardware configuration file:\n");
   1260                 while ((line = lineInput_getLine(input)) !=  NULL) {
   1261                     printf("  %s\n", line);
   1262                 }
   1263                 printf(".\n");
   1264                 lineInput_free(input);
   1265                 fclose(file);
   1266             }
   1267         }
   1268     }
   1269 
   1270     if(VERBOSE_CHECK(init)) {
   1271         int i;
   1272         printf("QEMU options list:\n");
   1273         for(i = 0; i < n; i++) {
   1274             printf("emulator: argv[%02d] = \"%s\"\n", i, args[i]);
   1275         }
   1276         /* Dump final command-line option to make debugging the core easier */
   1277         printf("Concatenated QEMU options:\n");
   1278         for (i = 0; i < n; i++) {
   1279             /* To make it easier to copy-paste the output to a command-line,
   1280              * quote anything that contains spaces.
   1281              */
   1282             if (strchr(args[i], ' ') != NULL) {
   1283                 printf(" '%s'", args[i]);
   1284             } else {
   1285                 printf(" %s", args[i]);
   1286             }
   1287         }
   1288         printf("\n");
   1289     }
   1290 
   1291     /* Setup SDL UI just before calling the code */
   1292     init_sdl_ui(skinConfig, skinPath, opts);
   1293 
   1294     if (attach_ui_to_core(opts) < 0) {
   1295         derror("Can't attach to core!");
   1296         exit(1);
   1297     }
   1298 
   1299     return qemu_main(n, args);
   1300 }
   1301