gdb/riscv: use register name enum values in riscv-linux-nat.c

There were a few places where we were using integer values rather than
the RISCV_*_REGNUM constants defined in riscv-tdep.h.  This commit
replaces 0 with RISCV_ZERO_REGNUM and 32 with RISCV_PC_REGNUM in a few
places.

There should be no user visible changes after this commit.

diff --git a/gdb/riscv-linux-nat.c b/gdb/riscv-linux-nat.c
index 706349414830e97f0de8479eaf2d50d1a0bfbbd7..5fbb0ca5addc2838dbdffa62eb776136f33f4a66 100644 (file)
--- a/gdb/riscv-linux-nat.c
+++ b/gdb/riscv-linux-nat.c
@@ -66,17 +66,17 @@ supply_gregset_regnum (struct regcache *regcache, const prgregset_t *gregs,
        regcache->raw_supply (i, regp + i);
 
       /* GDB stores PC in reg 32.  Linux kernel stores it in reg 0.  */
-      regcache->raw_supply (32, regp + 0);
+      regcache->raw_supply (RISCV_PC_REGNUM, regp + 0);
 
       /* Fill the inaccessible zero register with zero.  */
-      regcache->raw_supply_zeroed (0);
+      regcache->raw_supply_zeroed (RISCV_ZERO_REGNUM);
     }
   else if (regnum == RISCV_ZERO_REGNUM)
-    regcache->raw_supply_zeroed (0);
+    regcache->raw_supply_zeroed (RISCV_ZERO_REGNUM);
   else if (regnum > RISCV_ZERO_REGNUM && regnum < RISCV_PC_REGNUM)
     regcache->raw_supply (regnum, regp + regnum);
   else if (regnum == RISCV_PC_REGNUM)
-    regcache->raw_supply (32, regp + 0);
+    regcache->raw_supply (RISCV_PC_REGNUM, regp + 0);
 }
 
 /* Copy all general purpose registers from regset GREGS into REGCACHE.  */
@@ -147,7 +147,7 @@ fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
       for (int i = RISCV_ZERO_REGNUM + 1; i < RISCV_PC_REGNUM; i++)
        regcache->raw_collect (i, regp + i);
 
-      regcache->raw_collect (32, regp + 0);
+      regcache->raw_collect (RISCV_PC_REGNUM, regp + 0);
     }
   else if (regnum == RISCV_ZERO_REGNUM)
     /* Nothing to do here.  */
@@ -155,7 +155,7 @@ fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
   else if (regnum > RISCV_ZERO_REGNUM && regnum < RISCV_PC_REGNUM)
     regcache->raw_collect (regnum, regp + regnum);
   else if (regnum == RISCV_PC_REGNUM)
-    regcache->raw_collect (32, regp + 0);
+    regcache->raw_collect (RISCV_PC_REGNUM, regp + 0);
 }
 
 /* Copy floating point register REGNUM (or all fp regs if REGNUM == -1)