GH-9370: Fix opcache jit protection bits.

Allow mprotect to occur, pthread_jit_write_np are just to allow mprotect
 flags to be used.

Closes #9371.

Author: devnexen

NEWS

@@ -10,6 +10,10 @@ PHP                                                                        NEWS
   . Fixed bug GH-9285 (Traits cannot be used in readonly classes).
     (kocsismate)
 
+- Opcache:
+  . Fixed bug GH-9371 (Crash with JIT on mac arm64)
+    (jdp1024/David Carlier)
+
 - Random:
   . Fixed bug GH-9415 (Randomizer::getInt(0, 2**32 - 1) with Mt19937
     always returns 1). (timwolla)

ext/opcache/jit/zend_jit.c

@@ -4611,7 +4611,6 @@ ZEND_EXT_API void zend_jit_unprotect(void)
 #ifdef HAVE_PTHREAD_JIT_WRITE_PROTECT_NP
 		if (zend_write_protect) {
 			pthread_jit_write_protect_np(0);
-			return;
 		}
 #endif
 		opts |= PROT_EXEC;
@@ -4645,7 +4644,6 @@ ZEND_EXT_API void zend_jit_protect(void)
 #ifdef HAVE_PTHREAD_JIT_WRITE_PROTECT_NP
 		if (zend_write_protect) {
 			pthread_jit_write_protect_np(1);
-			return;
 		}
 #endif
 		if (mprotect(dasm_buf, dasm_size, PROT_READ | PROT_EXEC) != 0) {

ext/opcache/shared_alloc_mmap.c

@@ -166,6 +166,9 @@ static int create_segments(size_t requested_size, zend_shared_segment ***shared_
 #ifdef PROT_MAX
 	flags |= PROT_MAX(PROT_READ | PROT_WRITE | PROT_EXEC);
 #endif
+#ifdef MAP_JIT
+	flags |= MAP_JIT;
+#endif
 #if (defined(__linux__) || defined(__FreeBSD__)) && (defined(__x86_64__) || defined (__aarch64__))
 	void *hint = find_prefered_mmap_base(requested_size);
 	if (hint != MAP_FAILED) {