added jemalloc configuration to CMake for CPU_SINWAIT (#23898)

dep/jemalloc/CMakeLists.txt

@@ -28,6 +28,14 @@ if(CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT NOJEM)
     set(JEM_MADFREE_DEF "#undef")
   endif()
 
+  if(CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
+    set(JEM_CPU_SPINWAIT "")
+    set(JEM_HAVE_CPU_SPINWAIT 0)
+  else()
+    set(JEM_CPU_SPINWAIT "__asm__ volatile\(\"pause\"\)")
+    set(JEM_HAVE_CPU_SPINWAIT 1)
+  endif()
+
   # Create the header, so we can use it
   configure_file(
     "${CMAKE_SOURCE_DIR}/dep/jemalloc/jemalloc_internal_defs.h.in.cmake"

dep/jemalloc/jemalloc_internal_defs.h.in.cmake

@@ -33,9 +33,9 @@
  * Hyper-threaded CPUs may need a special instruction inside spin loops in
  * order to yield to another virtual CPU.
  */
-#define CPU_SPINWAIT __asm__ volatile("pause")
+#define CPU_SPINWAIT @JEM_CPU_SPINWAIT@
 /* 1 if CPU_SPINWAIT is defined, 0 otherwise. */
-#define HAVE_CPU_SPINWAIT 1
+#define HAVE_CPU_SPINWAIT @JEM_HAVE_CPU_SPINWAIT@
 
 /*
  * Number of significant bits in virtual addresses.  This may be less than the