| /*␊ |
| * Default path to kernel cache file␊ |
| */␊ |
| // OS X 10.5 & 10.4␊ |
| #define kDefaultCachePath "/System/Library/Caches/com.apple.kernelcaches/kernelcache"␊ |
| // OS X 10.4 & 10.5␊ |
| #define kCachePathTigerLeopard "/System/Library/Caches/com.apple.kernelcaches/kernelcache"␊ |
| // OS X 10.6␊ |
| #define kDefaultCachePathSnow "/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache"␊ |
| #define kCachePathSnowLion "/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache"␊ |
| ␊ |
| //==========================================================================␊ |
| // Zero the BSS.␊ |
|
| }␊ |
| ␊ |
| //==========================================================================␊ |
| //Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊ |
| //Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊ |
| //␊ |
| void initialize_runtime(void)␊ |
| {␊ |
|
| int ret;␊ |
| ␊ |
| bootArgs->kaddr = bootArgs->ksize = 0;␊ |
| ␉//Azi: here we get to know if we have a kernel or a prelinked kernel␊ |
| ␉execute_hook("ExecKernel", (void*)binary, NULL, NULL, NULL);␊ |
| ␊ |
| //Azi: gHaveKernelCache is set here␊ |
| ret = DecodeKernel(binary,␊ |
| &kernelEntry,␊ |
| (char **) &bootArgs->kaddr,␊ |
|
| ␉// we can't check the plist here if we have AutoResolution=n there and we anabled it␊ |
| ␉// at boot prompt...?????␊ |
| //␉getBoolForKey(kAutoResolutionKey, &gAutoResolution, &bootInfo->bootConfig);␊ |
| ␉␊ |
| ␉finishAutoRes();␊ |
| ␉␊ |
| ␉//Azi: closing Vbios after "if (gVerboseMode)" stuff eliminates the need for setting␊ |
|
| ␊ |
| ␉// Notify modules that the kernel is about to be started␊ |
| ␉// testing...␊ |
| ␉execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgs, NULL, NULL);␊ |
| ␉␊ |
| ␉if (gMacOSVersion[3] <= '6')␊ |
| ␉␉execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgsPreLion, NULL, NULL);␊ |
| ␉else␊ |
| ␉␉execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgs, NULL, NULL);␊ |
| ␊ |
| // If we were in text mode, switch to graphics mode.␊ |
| // This will draw the boot graphics unless we are in␊ |
|
| ␉setupBooterLog();␊ |
| ␉␊ |
| finalizeBootStruct();␊ |
| ␊ |
| // Jump to kernel's entry point. There's no going back now.␊ |
| //Azi: Lion - http://netkas.org/?p=745␊ |
| // see asm.s - same stuff by DHP http://www.insanelymac.com/forum/index.php?s=&showtopic=255866&view=findpost&p=1677779␊ |
| ␊ |
| //Azi: see asm.s LABEL(_disableIRQs)␊ |
| //␉outb(0x21, 0xff);␊ |
| //␉outb(0xa1, 0xff);␊ |
| startprog( kernelEntry, bootArgs );␊ |
| ␊ |
| // Jump to kernel's entry point. There's no going back now.␊ |
| ␉if (gMacOSVersion[3] <= '6')␊ |
| ␉␉startprog( kernelEntry, bootArgsPreLion );␊ |
| ␉else␊ |
| ␉␉startprog( kernelEntry, bootArgs );␊ |
| ␊ |
| // Not reached␊ |
| ␊ |
| return 0;␊ |
| }␊ |
| ␊ |
|
| ␉loadPrebootRAMDisk();␊ |
| ␉␊ |
| // Load boot.plist config file␊ |
| //Azi: on this first check, boot.plist acts as both "booter config file"␊ |
| // and bootargs/options "carrier".*****␊ |
| status = loadSystemConfig(&bootInfo->bootConfig);␊ |
| ␊ |
| if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->bootConfig) && quiet) {␊ |
|
| ␉␉}␊ |
| ␊ |
| //Azi:kernelcache stuff␊ |
| ␉␉bool patchKernel = false;␊ |
| ␉␉getBoolForKey(kKPatcherKey, &patchKernel, &bootInfo->bootConfig);␊ |
| ␉␉//Azi: avoiding having to use -f to ignore kernel cache␊ |
| ␉␉//Azi: ignore kernel cache but still use kext cache (E/E.mkext & S/L/E.mkext). - explain...␊ |
| ␉␉getBoolForKey(kIgnoreKCKey, &ignoreKC, &bootInfo->bootConfig);␊ |
| ␉␉getBoolForKey(kIgnoreKCKey, &ignoreKC, &bootInfo->bootConfig); // equivalent to UseKernelCache␊ |
| ␉␉if (ignoreKC)␊ |
| ␉␉{␊ |
| ␉␉␉verbose("KC: cache ignored by user.\n");␊ |
| ␉␉␉// make sure the damn thing get's cleaned, just in case... :)*␊ |
| ␉␉␉// make sure the damn thing get's zeroed, just in case... :)*␊ |
| ␉␉␉bzero(gBootKernelCacheFile, sizeof(gBootKernelCacheFile));␊ |
| ␉␉}␊ |
| ␉␉else if (patchKernel) // to be moved..?␊ |
| ␉␉{␊ |
| ␉␉␉verbose("KC: kernel patcher enabled, ignore cache.\n");␊ |
| ␉␉␉bzero(gBootKernelCacheFile, sizeof(gBootKernelCacheFile));␊ |
| ␉␉}␊ |
| ␉␉else if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig))␊ |
| ␉␉{␊ |
| strlcpy(gBootKernelCacheFile, val, len + 1);␊ |
| ␉␉␉verbose("KC: path set by user = %s\n", gBootKernelCacheFile);␊ |
| ␉␉␉//Azi: bypass time check when user sets path ???␊ |
| ␉␉␉// cache is still ignored if time doesn't match... (e.g. usb stick)␊ |
| ␉␉␉// cache is still ignored if time doesn't match... (e.g. booter on usb stick)␊ |
| }␊ |
| ␉␉else␊ |
| ␉␉{␊ |
|
| ␉␉␉const char *ProductName = getStringForKey("SMproductname", &bootInfo->smbiosConfig);␊ |
| ␉␉␉sprintf(gCacheNameAdler, ProductName); // well, at least the smbios.plist can be loaded this early...␊ |
| ␉␉␉// to set/get "ProductName" this early, booter needs complete rewrite!!␊ |
| ␉␉␉// see DHP's Revolution booter rework example!␊ |
| ␉␉␉verbose("KC: gCacheNameAdler 1 = %s\n", gCacheNameAdler);␊ |
| ␉␉␉//Azi: check the validity of this, e.g. on Helper Partitions␊ |
| ␉␉␉sprintf(gCacheNameAdler + 64, "%s", "\\System\\Library\\CoreServices\\boot.efi");␊ |
| ␉␉␉verbose("KC: gCacheNameAdler 2 = %s\n", gCacheNameAdler + 64);␊ |
| ␉␉␉sprintf(gCacheNameAdler + (64 + 38), "%s", bootInfo->bootFile);␊ |
|
| ␉␉␉// generate adler␊ |
| ␉␉␉adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
| ␉␉␉verbose("KC: Adler32 = %08X\n", adler32);␊ |
| ␉␉␉␊ |
| //Azi: no check for OS version here ?? - yes there is :)␊ |
| ␉␉␉// append arch and/or adler (checksum) to kc path...␊ |
| ␉␉␉if (gMacOSVersion[3] < '6') // change to >= for Lion?␊ |
| ␉␉␉if (gMacOSVersion[3] <= '5')␊ |
| ␉␉␉{␊ |
| ␉␉␉␉sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePath, adler32);␊ |
| ␉␉␉␉sprintf(gBootKernelCacheFile, "%s.%08lX", kCachePathTigerLeopard, adler32);␊ |
| ␉␉␉␉verbose("KC: adler added to path = %s\n", gBootKernelCacheFile);␊ |
| ␉␉␉}␊ |
| ␉␉␉else␊ |
| ␉␉␉{␊ |
| ␉␉␉␉sprintf(gBootKernelCacheFile, "%s_%s.%08X", kDefaultCachePathSnow,␊ |
| ␉␉␉␉sprintf(gBootKernelCacheFile, "%s_%s.%08X", kCachePathSnowLion,␊ |
| ␉␉␉␉␉␉(archCpuType == CPU_TYPE_I386) ? "i386" : "x86_64", adler32);␊ |
| ␉␉␉␉verbose("KC: arch & adler added to path = %s\n", gBootKernelCacheFile);␊ |
| ␉␉␉}␊ |
|
| ␉␉else␊ |
| ␉␉{␊ |
| // Won't return if successful.␊ |
| ␉␉␉// Notify modules that ExecKernel is about to be called␊ |
| ␉␉␉execute_hook("ExecKernel", binary, NULL, NULL, NULL);␊ |
| ␉␉␉␊ |
| ret = ExecKernel(binary);␊ |
| }␊ |
| } // while (1)␊ |
