| //==========================================================================␊ |
| // LoadKernelCache - Try to load Kernel Cache.␊ |
| // return the length of the loaded cache file or -1 on error␊ |
| long LoadKernelCache(void **binary) {␊ |
| long LoadKernelCache(const char* cacheFile, void **binary) {␊ |
| ␉char␉␉kernelCacheFile[512];␊ |
| ␉char␉␉kernelCachePath[512];␊ |
| ␉const char␉*val;␊ |
| ␉int␉␉ len;␊ |
| ␉long␉␉flags, time, cachetime, kerneltime, exttime, ret=-1;␊ |
| unsigned long adler32;␊ |
| ␊ |
| ␉// Determine the name of the Kernel Cache␊ |
| ␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {␊ |
| ␉␉if (val[0] == '\\')␊ |
| ␉␉{␊ |
| ␉␉␉len--;␊ |
| ␉␉␉val++;␊ |
| ␉␉}␊ |
| ␉␉strlcpy(kernelCacheFile, val, len + 1);␊ |
| ␉}␊ |
| ␉// Use specify kernel cache file if not empty␊ |
| ␉if (cacheFile[0] != 0)␊ |
| ␉␉strlcpy(kernelCacheFile, cacheFile, sizeof(kernelCacheFile));␊ |
| ␉else {␊ |
| ␉␉// Lion prelink kernel cache file␊ |
| ␉␉if (checkOSVersion("10.7")) {␊ |
|
| ␉␉long␉␉flags, sleeptime, time;␊ |
| ␉␉void␉␉*binary = (void *)kLoadAddr;␊ |
| ␉␉␊ |
| ␉␉// additional variable for testing alternate kernel image locations on boot helper partitions.␊ |
| ␉␉char bootFile[sizeof(bootInfo->bootFile)];␊ |
| ␉␉char␉␉bootFilePath[512];␊ |
| ␉␉␊ |
| ␉␉char␉␉kernelCacheFile[512];␊ |
| ␊ |
| ␉␉// Initialize globals.␊ |
| ␉␉sysConfigValid = false;␊ |
| ␉␉gErrors␉␉ = false;␊ |
|
| ␊ |
| ␉␉if (useKernelCache) do {␊ |
| ␊ |
| ␉␉␉// Determine the name of the Kernel Cache␊ |
| ␉␉␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {␊ |
| ␉␉␉␉if (val[0] == '\\')␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉len--;␊ |
| ␉␉␉␉␉val++;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉strlcpy(kernelCacheFile, val, len + 1);␊ |
| ␉␉␉} else {␊ |
| ␉␉␉␉kernelCacheFile[0] = 0; // Use default kernel cache file␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉// If boot from boot helper partitions and OS is Lion use prelink kernel.␊ |
| ␉␉␉// We need to find a solution to load extra mkext with a prelink kernel.␊ |
| ␉␉␉if (gBootVolume->flags & kBVFlagBooter && checkOSVersion("10.7")) {␊ |
|
| ␉␉␉␉useKernelCache = false;␊ |
| ␉␉␉␉break;␊ |
| ␉␉␉}␊ |
| ␉␉␉if (gOverrideKernel) {␊ |
| ␉␉␉␉verbose("Using a non default kernel (%s), KernelCache will not be used\n",␊ |
| ␉␉␉if (gOverrideKernel && kernelCacheFile[0] == 0) {␊ |
| ␉␉␉␉verbose("Using a non default kernel (%s) without specifying 'Kernel Cache' path, KernelCache will not be used\n",␊ |
| ␉␉␉␉␉␉bootInfo->bootFile);␊ |
| ␉␉␉␉useKernelCache = false;␊ |
| ␉␉␉␉break;␊ |
|
| ␊ |
| ␉␉do {␊ |
| ␉␉␉if (useKernelCache) {␊ |
| ␉␉␉␉ret = LoadKernelCache(&binary);␊ |
| ␉␉␉␉ret = LoadKernelCache(kernelCacheFile, &binary);␊ |
| ␉␉␉␉if (ret >= 0)␊ |
| ␉␉␉␉␉break;␊ |
| ␉␉␉}␊ |
