static int run_core(void) { int res = -1; struct fstab *fstab = NULL; if(wait_for_file("/dev/graphics/fb0", 5) < 0) { ERROR("Waiting too long for fb0"); goto exit; } #ifdef MR_POPULATE_BY_NAME_PATH Populate_ByName_using_emmc(); #endif fstab = fstab_auto_load(); if(!fstab) goto exit; #if 0 fstab_dump(fstab); //debug #endif // mount and run multirom from sdcard res = mount_and_run(fstab); if(res < 0 && mrom_is_second_boot()) { ERROR("This is second boot and we couldn't mount /data, reboot!\n"); sync(); //android_reboot(ANDROID_RB_RESTART, 0, 0); android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); // favour reboot to recovery, to avoid possible bootlooping while(1) sleep(1); } if(access(KEEP_REALDATA, F_OK) < 0) { umount(REALDATA); rmdir(REALDATA); encryption_destroy(); } encryption_cleanup(); exit: if(fstab) fstab_destroy(fstab); return res; }
int main(int argc, char *argv[]) { int i, res; static char *const cmd[] = { "/init", NULL }; struct fstab *fstab = NULL; char *inject_path = NULL; char *mrom_dir = NULL; int force_inject = 0; for(i = 1; i < argc; ++i) { if(strcmp(argv[i], "-v") == 0) { printf("%d\n", VERSION_TRAMPOLINE); fflush(stdout); return 0; } else if(strstartswith(argv[i], "--inject=")) inject_path = argv[i] + strlen("--inject="); else if(strstartswith(argv[i], "--mrom_dir=")) mrom_dir = argv[i] + strlen("--mrom_dir="); else if(strcmp(argv[i], "-f") == 0) force_inject = 1; } if(inject_path) { if(!mrom_dir) { printf("--mrom_dir=[path to multirom's data dir] needs to be specified!\n"); fflush(stdout); return 1; } mrom_set_dir(mrom_dir); mrom_set_log_tag("trampoline_inject"); return inject_bootimg(inject_path, force_inject); } umask(000); // Init only the little we need, leave the rest for real init mkdir("/dev", 0755); mkdir("/dev/pts", 0755); mkdir("/dev/socket", 0755); mkdir("/proc", 0755); mkdir("/sys", 0755); mount("tmpfs", "/dev", "tmpfs", MS_NOSUID, "mode=0755"); mount("devpts", "/dev/pts", "devpts", 0, NULL); mount("proc", "/proc", "proc", 0, NULL); mount("sysfs", "/sys", "sysfs", 0, NULL); mount("pstore", "/sys/fs/pstore", "pstore", 0, NULL); #if MR_USE_DEBUGFS_MOUNT // Mount the debugfs kernel sysfs mkdir("/sys/kernel/debug", 0755); mount("debugfs", "/sys/kernel/debug", "debugfs", 0, NULL); #endif klog_init(); // output all messages to dmesg, // but it is possible to filter out INFO messages klog_set_level(6); mrom_set_log_tag("trampoline"); INFO("Running trampoline v%d\n", VERSION_TRAMPOLINE); if(is_charger_mode()) { INFO("Charger mode detected, skipping multirom\n"); goto run_main_init; } #if MR_DEVICE_HOOKS >= 3 tramp_hook_before_device_init(); #endif INFO("Initializing devices...\n"); devices_init(); INFO("Done initializing\n"); if(wait_for_file("/dev/graphics/fb0", 5) < 0) { ERROR("Waiting too long for fb0"); goto exit; } #ifdef MR_POPULATE_BY_NAME_PATH //nkk71 M7 hack Populate_ByName_using_emmc(); #endif fstab = fstab_auto_load(); if(!fstab) goto exit; #if 0 fstab_dump(fstab); //debug #endif // mount and run multirom from sdcard if(mount_and_run(fstab) < 0 && mrom_is_second_boot()) { ERROR("This is second boot and we couldn't mount /data, reboot!\n"); sync(); android_reboot(ANDROID_RB_RESTART, 0, 0); while(1) sleep(1); } exit: if(fstab) fstab_destroy(fstab); // close and destroy everything devices_close(); run_main_init: umount("/dev/pts"); rmdir("/dev/pts"); rmdir("/dev/socket"); if(access(KEEP_REALDATA, F_OK) < 0) { umount(REALDATA); umount("/dev"); rmdir(REALDATA); encryption_destroy(); } encryption_cleanup(); #if MR_USE_DEBUGFS_MOUNT umount("/sys/kernel/debug"); #endif umount("/proc"); umount("/sys/fs/pstore"); umount("/sys"); INFO("Running main_init\n"); fixup_symlinks(); chmod("/main_init", EXEC_MASK); rename("/main_init", "/init"); res = execve(cmd[0], cmd, NULL); ERROR("execve returned %d %d %s\n", res, errno, strerror(errno)); return 0; }