[PATCH 7/8] gdb/riscv: make riscv target description names global

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

A later commit will need the names of the RISC-V target description
features in files other than riscv-tdep.c.  This commit just makes the
names global strings that can be accessed from other riscv-*.c files.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* riscv-tdep.c (riscv_feature_name_csr): Define.
	(riscv_feature_name_cpu): Define.
	(riscv_feature_name_fpu): Define.
	(riscv_feature_name_virtual): Define.
	(riscv_xreg_feature): Use riscv_feature_name_cpu.
	(riscv_freg_feature): Use riscv_feature_name_fpu.
	(riscv_virtual_feature): Use riscv_feature_name_virtual.
	(riscv_csr_feature): Use riscv_feature_name_csr.
	* riscv-tdep.h (riscv_feature_name_csr): Declare.
---
 gdb/ChangeLog    | 12 ++++++++++++
 gdb/riscv-tdep.c | 14 ++++++++++----
 gdb/riscv-tdep.h |  3 +++
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index a428f79940d..eb2ccb42d5e 100644
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -74,6 +74,12 @@ static inline bool is_ ## INSN_NAME ## _insn (long insn) \
 #include "opcode/riscv-opc.h"
 #undef DECLARE_INSN
 
+/* The names of the RISC-V target description features.  */
+const char *riscv_feature_name_csr = "org.gnu.gdb.riscv.csr";
+static const char *riscv_feature_name_cpu = "org.gnu.gdb.riscv.cpu";
+static const char *riscv_feature_name_fpu = "org.gnu.gdb.riscv.fpu";
+static const char *riscv_feature_name_virtual = "org.gnu.gdb.riscv.virtual";
+
 /* Cached information about a frame.  */
 
 struct riscv_unwind_cache
@@ -252,7 +258,7 @@ riscv_register_feature::register_info::check
 
 static const struct riscv_register_feature riscv_xreg_feature =
 {
- "org.gnu.gdb.riscv.cpu", true,
+ riscv_feature_name_cpu, true,
  {
    { RISCV_ZERO_REGNUM + 0, { "zero", "x0" }, RISCV_REG_REQUIRED },
    { RISCV_ZERO_REGNUM + 1, { "ra", "x1" }, RISCV_REG_REQUIRED },
@@ -294,7 +300,7 @@ static const struct riscv_register_feature riscv_xreg_feature =
 
 static const struct riscv_register_feature riscv_freg_feature =
 {
- "org.gnu.gdb.riscv.fpu", true,
+  riscv_feature_name_fpu, true,
  {
    { RISCV_FIRST_FP_REGNUM + 0, { "ft0", "f0" }, RISCV_REG_REQUIRED },
    { RISCV_FIRST_FP_REGNUM + 1, { "ft1", "f1" }, RISCV_REG_REQUIRED },
@@ -344,7 +350,7 @@ static const struct riscv_register_feature riscv_freg_feature =
 
 static const struct riscv_register_feature riscv_virtual_feature =
 {
- "org.gnu.gdb.riscv.virtual", false,
+   riscv_feature_name_virtual, false,
  {
    { RISCV_PRIV_REGNUM, { "priv" }, RISCV_REG_OPTIONAL }
  }
@@ -356,7 +362,7 @@ static const struct riscv_register_feature riscv_virtual_feature =
 
 static struct riscv_register_feature riscv_csr_feature =
 {
- "org.gnu.gdb.riscv.csr", false,
+  riscv_feature_name_csr, false,
  {
 #define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
   { RISCV_ ## VALUE ## _REGNUM, { # NAME }, RISCV_REG_OPTIONAL },
diff --git a/gdb/riscv-tdep.h b/gdb/riscv-tdep.h
index 1064ced1192..fc8013cf417 100644
--- a/gdb/riscv-tdep.h
+++ b/gdb/riscv-tdep.h
@@ -155,4 +155,7 @@ extern void riscv_supply_regset (const struct regset *regset,
 				  struct regcache *regcache, int regnum,
 				  const void *regs, size_t len);
 
+/* The names of the RISC-V target description features.  */
+extern const char *riscv_feature_name_csr;
+
 #endif /* RISCV_TDEP_H */
-- 
2.25.4