[PATCH 1/4] gdb/riscv: Make some target description functions constant

[Andrew Burgess <andrew.burgess@embecosm.com>]

Makes more of the interface related to fetching target descriptions
constant.

gdb/ChangeLog:

	* arch/riscv.h (riscv_create_target_description): Make return type
	const.
	* arch/riscv.c (riscv_create_target_description): Likewise.
	* riscv-tdep.c (riscv_find_default_target_description): Likewise.
---
 gdb/ChangeLog    | 7 +++++++
 gdb/arch/riscv.c | 2 +-
 gdb/arch/riscv.h | 2 +-
 gdb/riscv-tdep.c | 2 +-
 4 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/gdb/arch/riscv.c b/gdb/arch/riscv.c
index ca2238d5d70..cb715fabb1f 100644
--- a/gdb/arch/riscv.c
+++ b/gdb/arch/riscv.c
@@ -26,7 +26,7 @@
 
 /* See arch/riscv.h.  */
 
-target_desc *
+const target_desc *
 riscv_create_target_description (struct riscv_gdbarch_features features)
 {
   target_desc *tdesc = allocate_target_description ();
diff --git a/gdb/arch/riscv.h b/gdb/arch/riscv.h
index 007944019a9..ec4d5f39525 100644
--- a/gdb/arch/riscv.h
+++ b/gdb/arch/riscv.h
@@ -58,7 +58,7 @@ struct riscv_gdbarch_features
 /* Create and return a target description that is compatible with
    FEATURES.  */
 
-target_desc *riscv_create_target_description
+const target_desc *riscv_create_target_description
 	(struct riscv_gdbarch_features features);
 
 #endif /* ARCH_RISCV_H */
diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index 5965a594440..d66fe5c8793 100644
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -2793,7 +2793,7 @@ static const struct frame_unwind riscv_frame_unwind =
    specifically the bfd object being executed, to guide the selection of a
    suitable default target description.  */
 
-static struct target_desc *
+static const struct target_desc *
 riscv_find_default_target_description (const struct gdbarch_info info)
 {
   struct riscv_gdbarch_features features;
-- 
2.14.5