opcodes/riscv: make riscv_options[] const

There's no reason to allow the array to be modifiable. In fact the
compiler is able to infer this, placing the array in .data.rel.ro, but
let's make it explicit.

diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index f6af9c47a25d07e1e9687ed99a122480c44f6d89..fa2d44af28f6abd39adb195b5d3d05570b3da4d0 100644 (file)
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -1612,7 +1612,7 @@ typedef enum
 
 /* Valid RISCV disassembler options.  */
 
-static struct
+static const struct
 {
   const char *name;
   const char *description;