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# Description: Fix abort() on ARM related to __clear_cache(). This is an issue
# for anything !apple that is using the libcompiler_rt provided by clang on ARM
# PR: ports/149167 ports/184517
# Patch by: cognet@ (to be upstreamed @ LLVM)
--- src/arm/ffi.c.orig 2014-11-08 12:47:24 UTC
+++ src/arm/ffi.c
@@ -33,6 +33,11 @@
#include <stdlib.h>
+#if defined(__FreeBSD__) && defined(__arm__)
+#include <sys/types.h>
+#include <machine/sysarch.h>
+#endif
+
/* Forward declares. */
static int vfp_type_p (ffi_type *);
static void layout_vfp_args (ffi_cif *);
@@ -750,6 +755,16 @@ ffi_closure_free (void *ptr)
}
#else
+
+#if defined(__FreeBSD__) && defined(__arm__)
+#define __clear_cache(start, end) do { \
+ struct arm_sync_icache_args ua; \
+ \
+ ua.addr = (uintptr_t)(start); \
+ ua.len = (char *)(end) - (char *)start; \
+ sysarch(ARM_SYNC_ICACHE, &ua); \
+ } while (0);
+#endif
#define FFI_INIT_TRAMPOLINE(TRAMP,FUN,CTX) \
({ unsigned char *__tramp = (unsigned char*)(TRAMP); \
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