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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 2019-10-31 14:49:54 UTC
+++ src/arm/ffi.c
@@ -55,6 +55,11 @@ extern unsigned int ffi_arm_trampoline[3] FFI_HIDDEN;
#endif
#endif
+#if defined(__FreeBSD__) && defined(__arm__)
+#include <sys/types.h>
+#include <machine/sysarch.h>
+#endif
+
/* Forward declares. */
static int vfp_type_p (const ffi_type *);
static void layout_vfp_args (ffi_cif *);
@@ -568,6 +573,16 @@ void ffi_go_closure_SYSV (void) FFI_HIDDEN;
void ffi_go_closure_VFP (void) FFI_HIDDEN;
/* the cif must already be prep'ed */
+
+#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
ffi_status
ffi_prep_closure_loc (ffi_closure * closure,
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