Add shared cache map paths for Big Sur (#64)

acidanthera · Jan 8, 2021 · d107554 · d107554
1 parent 2c1c67e
commit d107554
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/Lilu/Headers/kern_user.hpp b/Lilu/Headers/kern_user.hpp
@@ -574,6 +574,16 @@ class UserPatcher {
 	 *  DYLD shared cache path on older systems before Big Sur
 	 */
 	static constexpr const char *sharedCacheLegacy {"/private/var/db/dyld/dyld_shared_cache_x86_64"};
+
+	/**
+	 *  DYLD shared cache map path on Haswell+ on Big Sur
+	 */
+	static constexpr const char *bigSurSharedCacheMapHaswell {"/System/Library/dyld/dyld_shared_cache_x86_64h.map"};
+
+	/**
+	 *  DYLD shared cache map path on older systems on Big Sur
+	 */
+	static constexpr const char *bigSurSharedCacheMapLegacy {"/System/Library/dyld/dyld_shared_cache_x86_64.map"};
 
 	/**
 	 *  DYLD shared cache path on Haswell+ on Big Sur

diff --git a/Lilu/Sources/kern_user.cpp b/Lilu/Sources/kern_user.cpp
@@ -756,7 +756,11 @@ bool UserPatcher::loadDyldSharedCacheMapping() {
 
 	uint8_t *buffer {nullptr};
 	size_t bufferSize {0};
-	if (CPUInfo::isHaswellEligible() && getKernelVersion() >= KernelVersion::Yosemite) {
+	bool isHaswell = CPUInfo::isHaswellEligible();
+	if (getKernelVersion() >= KernelVersion::BigSur) {
+		buffer = FileIO::readFileToBuffer(isHaswell ? bigSurSharedCacheMapHaswell : bigSurSharedCacheMapLegacy, bufferSize);
+	}
+	else if (isHaswell && getKernelVersion() >= KernelVersion::Yosemite) {
 		buffer = FileIO::readFileToBuffer(SharedCacheMapHaswell, bufferSize);
 	}