Add m4 support

Author: jiegec

include/uarch.h

@@ -7,10 +7,15 @@ enum uarch {
 
   // arm64
   // apple
+  // m1
   firestorm,
   icestorm,
+  // m2
   avalanche,
   blizzard,
+  // m4
+  m4_pcore,
+  m4_ecore,
   // qualcomm
   oryon,
   // arm

src/detect_uarch.cpp

@@ -6,21 +6,38 @@ int main() {
   enum uarch uarch = get_uarch();
   switch (uarch) {
   case firestorm:
+    printf("-DAPPLE_SILICON\n");
+    printf("-DAPPLE_PCORE\n");
     printf("-DAPPLE_M1\n");
     printf("-DAPPLE_M1_FIRESTORM\n");
     break;
   case icestorm:
+    printf("-DAPPLE_SILICON\n");
     printf("-DAPPLE_M1\n");
     printf("-DAPPLE_M1_ICESTORM\n");
     break;
   case avalanche:
+    printf("-DAPPLE_SILICON\n");
+    printf("-DAPPLE_PCORE\n");
     printf("-DAPPLE_M2\n");
     printf("-DAPPLE_M2_AVALANCHE\n");
     break;
   case blizzard:
+    printf("-DAPPLE_SILICON\n");
     printf("-DAPPLE_M2\n");
     printf("-DAPPLE_M2_BLIZZARD\n");
     break;
+  case m4_pcore:
+    printf("-DAPPLE_SILICON\n");
+    printf("-DAPPLE_PCORE\n");
+    printf("-DAPPLE_M4\n");
+    printf("-DAPPLE_M4_PCORE\n");
+    break;
+  case m4_ecore:
+    printf("-DAPPLE_SILICON\n");
+    printf("-DAPPLE_M4\n");
+    printf("-DAPPLE_M4_ECORE\n");
+    break;
   case oryon:
     printf("-DQUALCOMM_ORYON\n");
     break;
@@ -34,6 +51,7 @@ int main() {
     printf("-DARM_CORTEX_X1\n");
     break;
   case neoverse_n1:
+    printf("-DNO_FJCVTZS\n");
     printf("-DARM_NEOVERSE_N1\n");
     break;
   case neoverse_v1:

src/uarch.cpp

@@ -163,6 +163,11 @@ enum uarch get_uarch_inner() {
 
     fprintf(stderr, "Configured for Apple M2 Avalanche\n");
     return avalanche;
+  } else if (strcmp(buf, "0x6f5129ac\n") == 0) {
+    fprintf(stderr, "Apple M4 detected\n");
+
+    fprintf(stderr, "Configured for Apple M4 P core\n");
+    return m4_pcore;
   }
 #endif