Darwin, Arm64 : Darwin should use an OS call to clear caches.

The sys_icache_invalidate() function is the right one to use. The fixes issue gcc-mirror#17 (cherry picked from commit d425e8b9b0ac44415053104bf2db1edc018866bc)
catap · May 4, 2023 · 1e1b692 · 1e1b692
1 parent b3028bf
commit 1e1b692
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diff --git a/gcc/config/aarch64/darwin.h b/gcc/config/aarch64/darwin.h
@@ -229,3 +229,8 @@ along with GCC; see the file COPYING3.  If not see
 
 #undef ASM_OUTPUT_DEF_FROM_DECLS
 
+#undef CLEAR_INSN_CACHE
+#define CLEAR_INSN_CACHE(beg, end)				\
+  extern void sys_icache_invalidate(void *start, size_t len);	\
+  sys_icache_invalidate ((beg), (size_t)((end)-(beg)))
+
diff --git a/libgcc/config.host b/libgcc/config.host
@@ -420,7 +420,6 @@ aarch64*-*-elf | aarch64*-*-rtems*)
 	;;
 aarch64*-*darwin* | arm64*-*darwin* )
 	extra_parts="$extra_parts crtfastmath.o"
-	tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
 	tmake_file="${tmake_file} ${cpu_type}/t-lse "
 	tmake_file="${tmake_file} t-crtfm"
 	# No soft float for now because our long double is DF not TF.