opcodes: constify & scope microblaze opcodes

This is exporting the variable "opcodes" as a large writable blob.
This is not a namespace friendly name, so add a "microblaze" prefix,
and then sprinkle const over its definition & use.

3 files changed, 23 insertions, 11 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index de90ac5..2b70221 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,17 @@
 2021-07-01  Mike Frysinger  <vapier@gentoo.org>
 
+	* microblaze-dis.c (get_field_special): Make op const.
+	(read_insn_microblaze): Make opr & op const.  Rename opcodes to
+	microblaze_opcodes.
+	(print_insn_microblaze): Make op & pop const.
+	(get_insn_microblaze): Make op const.  Rename opcodes to
+	microblaze_opcodes.
+	(microblaze_get_target_address): Likewise.
+	* microblaze-opc.h (struct op_code_struct): Make const.
+	Rename opcodes to microblaze_opcodes.
+
+2021-07-01  Mike Frysinger  <vapier@gentoo.org>
+
 	* aarch64-gen.c (aarch64_opcode_table): Add const.
 	* aarch64-tbl.h (aarch64_opcode_table): Likewise.
 
diff --git a/opcodes/microblaze-dis.c b/opcodes/microblaze-dis.c
index aa75c4c..1696f55 100644
--- a/opcodes/microblaze-dis.c
+++ b/opcodes/microblaze-dis.c
@@ -111,7 +111,7 @@ get_field_imm15 (struct string_buf *buf, long instr)
 
 static char *
 get_field_special (struct string_buf *buf, long instr,
-		   struct op_code_struct *op)
+		   const struct op_code_struct *op)
 {
   char *p = strbuf (buf);
   char *spr;
@@ -184,11 +184,11 @@ get_field_special (struct string_buf *buf, long instr,
 static unsigned long
 read_insn_microblaze (bfd_vma memaddr,
 		      struct disassemble_info *info,
-		      struct op_code_struct **opr)
+		      const struct op_code_struct **opr)
 {
   unsigned char       ibytes[4];
   int                 status;
-  struct op_code_struct * op;
+  const struct op_code_struct *op;
   unsigned long inst;
 
   status = info->read_memory_func (memaddr, ibytes, 4, info);
@@ -209,7 +209,7 @@ read_insn_microblaze (bfd_vma memaddr,
     abort ();
 
   /* Just a linear search of the table.  */
-  for (op = opcodes; op->name != 0; op ++)
+  for (op = microblaze_opcodes; op->name != 0; op ++)
     if (op->bit_sequence == (inst & op->opcode_mask))
       break;
 
@@ -224,7 +224,7 @@ print_insn_microblaze (bfd_vma memaddr, struct disassemble_info * info)
   fprintf_ftype print_func = info->fprintf_func;
   void *stream = info->stream;
   unsigned long inst, prev_inst;
-  struct op_code_struct *op, *pop;
+  const struct op_code_struct *op, *pop;
   int immval = 0;
   bool immfound = false;
   static bfd_vma prev_insn_addr = -1;	/* Init the prev insn addr.  */
@@ -452,11 +452,11 @@ get_insn_microblaze (long inst,
   		     enum microblaze_instr_type *insn_type,
   		     short *delay_slots)
 {
-  struct op_code_struct * op;
+  const struct op_code_struct *op;
   *isunsignedimm = false;
 
   /* Just a linear search of the table.  */
-  for (op = opcodes; op->name != 0; op ++)
+  for (op = microblaze_opcodes; op->name != 0; op ++)
     if (op->bit_sequence == (inst & op->opcode_mask))
       break;
 
@@ -494,12 +494,12 @@ microblaze_get_target_address (long inst, bool immfound, int immval,
 			       bool *targetvalid,
 			       bool *unconditionalbranch)
 {
-  struct op_code_struct * op;
+  const struct op_code_struct *op;
   long targetaddr = 0;
 
   *unconditionalbranch = false;
   /* Just a linear search of the table.  */
-  for (op = opcodes; op->name != 0; op ++)
+  for (op = microblaze_opcodes; op->name != 0; op ++)
     if (op->bit_sequence == (inst & op->opcode_mask))
       break;
 
diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
index 3182d94..080d238 100644
--- a/opcodes/microblaze-opc.h
+++ b/opcodes/microblaze-opc.h
@@ -103,7 +103,7 @@
 
 #define MAX_OPCODES 289
 
-struct op_code_struct
+const struct op_code_struct
 {
   const char * name;
   short inst_type;            /* Registers and immediate values involved.  */
@@ -117,7 +117,7 @@ struct op_code_struct
   enum microblaze_instr instr;
   enum microblaze_instr_type instr_type;
   /* More info about output format here.  */
-} opcodes[MAX_OPCODES] =
+} microblaze_opcodes[MAX_OPCODES] =
 {
   {"add",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x00000000, OPCODE_MASK_H4, add, arithmetic_inst },
   {"rsub",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x04000000, OPCODE_MASK_H4, rsub, arithmetic_inst },