1 files changed, 65 insertions, 0 deletions
diff --git a/disas/hexagon.c b/disas/hexagon.c
new file mode 100644
index 0000000000..3c24e2a94a
--- /dev/null
+++ b/disas/hexagon.c
@@ -0,0 +1,65 @@
+/*
+ *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ *  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 2 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * QEMU Hexagon Disassembler
+ */
+
+#include "qemu/osdep.h"
+#include "disas/dis-asm.h"
+#include "target/hexagon/cpu_bits.h"
+
+/*
+ * We will disassemble a packet with up to 4 instructions, so we need
+ * a hefty size buffer.
+ */
+#define PACKET_BUFFER_LEN                   1028
+
+int print_insn_hexagon(bfd_vma memaddr, struct disassemble_info *info)
+{
+    uint32_t words[PACKET_WORDS_MAX];
+    bool found_end = false;
+    GString *buf = g_string_sized_new(PACKET_BUFFER_LEN);
+    int i, len;
+
+    for (i = 0; i < PACKET_WORDS_MAX && !found_end; i++) {
+        int status = (*info->read_memory_func)(memaddr + i * sizeof(uint32_t),
+                                               (bfd_byte *)&words[i],
+                                               sizeof(uint32_t), info);
+        if (status) {
+            if (i > 0) {
+                break;
+            }
+            (*info->memory_error_func)(status, memaddr, info);
+            return status;
+        }
+        if (is_packet_end(words[i])) {
+            found_end = true;
+        }
+    }
+
+    if (!found_end) {
+        (*info->fprintf_func)(info->stream, "<invalid>");
+        return PACKET_WORDS_MAX * sizeof(uint32_t);
+    }
+
+    len = disassemble_hexagon(words, i, memaddr, buf);
+    (*info->fprintf_func)(info->stream, "%s", buf->str);
+    g_string_free(buf, true);
+
+    return len;
+}