1 files changed, 75 insertions, 0 deletions
diff --git a/bfd/cpu-arc64.c b/bfd/cpu-arc64.c
new file mode 100644
index 0000000..a1c3a2e
--- /dev/null
+++ b/bfd/cpu-arc64.c
@@ -0,0 +1,75 @@
+/* BFD support for the ARC64 processor
+   Copyright (C) 2023 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+/* ARC64-specific "compatible" function.  The general rule is that if
+   A and B are compatible, then this function should return
+   architecture that is more "feature-rich", that is, can run both A
+   and B.  */
+
+static const bfd_arch_info_type *
+compatible (const bfd_arch_info_type *a ATTRIBUTE_UNUSED,
+	    const bfd_arch_info_type *b ATTRIBUTE_UNUSED)
+{
+  /* If a & b are for different architecture we can do nothing.  */
+  if (a->arch != b->arch)
+    return NULL;
+
+  /* If a & b are for the same machine then all is well.  */
+  if (a->mach == b->mach)
+    return a;
+
+  /* Otherwise if either a or b is the 'default' machine
+     then it can be polymorphed into the other.  */
+  if (a->the_default)
+    return b;
+
+  if (b->the_default)
+    return a;
+
+  return NULL;
+}
+
+#define ARC64(WORDSIZE, MACH, PRINT_NAME, DEFAULT_P, NEXT)	\
+  {								\
+    WORDSIZE,	/* 64/32 bits in a word.  */			\
+    WORDSIZE,	/* 64/32 bits in an address.  */		\
+    8,	/* 8 bits in a byte.  */				\
+    bfd_arch_arc64,						\
+    MACH,							\
+    "arc64",							\
+    PRINT_NAME,							\
+    4, /* section alignment power.  */				\
+    DEFAULT_P,							\
+    compatible,							\
+    bfd_default_scan,						\
+    bfd_arch_default_fill,					\
+    NEXT,							\
+    0 /* Maximum offset of a reloc from the start of an insn.  */ \
+  }
+
+static const bfd_arch_info_type bfd_arc64_arch_32 =
+  ARC64 (32, bfd_mach_arcv3_32, "arc64:32", false, NULL);
+
+const bfd_arch_info_type bfd_arc64_arch =
+  ARC64 (64, bfd_mach_arcv3_64, "arc64:64", true, &bfd_arc64_arch_32);