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libkern/OSKextLib.cpp xnu-12377.121.6 xnu-6153.41.3
--- xnu/xnu-12377.121.6/libkern/OSKextLib.cpp
+++ xnu/xnu-6153.41.3/libkern/OSKextLib.cpp
@@ -31,13 +31,10 @@
 #include <libkern/mkext.h>
 };
 
-#include <kern/telemetry.h>
 #include <libkern/c++/OSContainers.h>
 #include <libkern/c++/OSKext.h>
 #include <libkern/OSKextLib.h>
 #include <libkern/OSKextLibPrivate.h>
-#include <vm/vm_kern_xnu.h>
-#include <vm/vm_map_xnu.h>
 
 extern "C" {
 #if PRAGMA_MARK
@@ -77,12 +74,6 @@
 
 /*********************************************************************
 *********************************************************************/
-
-// FIXME: Implementation of this function is hidden from the static analyzer.
-// The analyzer is worried about the lack of release and suggests
-// refactoring the code into the typical non-owning container pattern.
-// Feel free to remove the #ifndef and address the warning!
-#ifndef __clang_analyzer__
 OSReturn
 OSKextRetainKextWithLoadTag(uint32_t loadTag)
 {
@@ -117,16 +108,9 @@
 finish:
 	return result;
 }
-#endif // __clang_analyzer__
-
-/*********************************************************************
-*********************************************************************/
-
-// FIXME: Implementation of this function is hidden from the static analyzer.
-// The analyzer is worried about the double release and suggests
-// refactoring the code into the typical non-owning container pattern.
-// Feel free to remove the #ifndef and address the warning!
-#ifndef __clang_analyzer__
+
+/*********************************************************************
+*********************************************************************/
 OSReturn
 OSKextReleaseKextWithLoadTag(uint32_t loadTag)
 {
@@ -162,7 +146,6 @@
 finish:
 	return result;
 }
-#endif // __clang_analyzer__
 
 /*********************************************************************
 * Not to be called by the kext being unloaded!
@@ -287,7 +270,7 @@
 	}
 
 	if (isMkext) {
-#if defined(SECURE_KERNEL) || !CONFIG_KXLD
+#ifdef SECURE_KERNEL
 		// xxx - something tells me if we have a secure kernel we don't even
 		// xxx - want to log a message here. :-)
 		*op_result = KERN_NOT_SUPPORTED;
@@ -380,31 +363,21 @@
 * Gets the vm_map for the current kext
 *********************************************************************/
 extern vm_offset_t segPRELINKTEXTB;
-extern vm_offset_t segLINKB;
 extern unsigned long segSizePRELINKTEXT;
+extern int kth_started;
+extern vm_map_t g_kext_map;
 
 vm_map_t
 kext_get_vm_map(kmod_info_t *info)
 {
 	vm_map_t kext_map = NULL;
-	kc_format_t kcformat;
-
-	if (PE_get_primary_kc_format(&kcformat) && kcformat == KCFormatFileset) {
-		/* Check if the kext is from the boot KC */
-		assert(segLINKB >= (segPRELINKTEXTB + segSizePRELINKTEXT));
-		if ((info->address >= segPRELINKTEXTB) &&
-		    (info->address < segLINKB)) {
-			kext_map = kernel_map;
-		} else {
-			kext_map = g_kext_map;
-		}
+
+	/* Set the vm map */
+	if ((info->address >= segPRELINKTEXTB) &&
+	    (info->address < (segPRELINKTEXTB + segSizePRELINKTEXT))) {
+		kext_map = kernel_map;
 	} else {
-		if ((info->address >= segPRELINKTEXTB) &&
-		    (info->address < (segPRELINKTEXTB + segSizePRELINKTEXT))) {
-			kext_map = kernel_map;
-		} else {
-			kext_map = g_kext_map;
-		}
+		kext_map = g_kext_map;
 	}
 
 	return kext_map;
@@ -419,7 +392,7 @@
 void
 kext_weak_symbol_referenced(void)
 {
-	panic("A kext referenced an unresolved weak symbol");
+	panic("A kext referenced an unresolved weak symbol\n");
 }
 
 const void * const gOSKextUnresolved = (const void *)&kext_weak_symbol_referenced;
@@ -483,36 +456,6 @@
 	return;
 }
 
-void
-telemetry_backtrace_add_kexts(
-	char                 *buf,
-	size_t                buflen,
-	uintptr_t            *frames,
-	uint32_t              framecnt)
-{
-	__block size_t pos = 0;
-
-	OSKext::foreachKextInBacktrace(frames, framecnt, OSKext::kPrintKextsLock,
-	    ^(OSKextLoadedKextSummary *summary, uint32_t index __unused){
-			uuid_string_t uuid;
-			uint64_t tmpAddr;
-			uint64_t tmpSize;
-
-			(void) uuid_unparse(summary->uuid, uuid);
-
-#if defined(__arm__) || defined(__arm64__)
-			tmpAddr = summary->text_exec_address;
-			tmpSize = summary->text_exec_size;
-#else
-			tmpAddr = summary->address;
-			tmpSize = summary->size;
-#endif
-			tmpAddr -= vm_kernel_stext;
-			pos += scnprintf(buf + pos, buflen - pos, "%s@%llx:%llx\n",
-			uuid, tmpAddr, tmpAddr + tmpSize - 1);
-		});
-}
-
 /********************************************************************/
 void kmod_dump_log(vm_offset_t *addr, unsigned int cnt, boolean_t doUnslide);
 
@@ -535,13 +478,6 @@
 	return OSKext::kextForAddress(addr);
 }
 
-kern_return_t
-OSKextGetLoadedKextSummaryForAddress(
-	const void              * addr,
-	OSKextLoadedKextSummary * summary)
-{
-	return OSKext::summaryForAddressExt(addr, summary);
-}
 
 /*********************************************************************
 * Compatibility implementation for kmod_get_info() host_priv routine.