Add missing function prototypes in KGDB

This fixes the build broken by r298358

gnu/usr.bin/gdb/kgdb/main.c

@@ -474,9 +474,7 @@ main(int argc, char *argv[])
 	add_arg(&args, NULL);
 
 	init_ui_hook = kgdb_init;
-#if TARGET_CPUARCH == arm
 	frame_tdep_pc_fixup = kgdb_trgt_pc_fixup;
-#endif
 	kgdb_sniffer_kluge = kgdb_trgt_trapframe_sniffer;
 
 	return (gdb_main(&args));

gnu/usr.bin/gdb/kgdb/trgt_amd64.c

@@ -195,3 +195,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 	/* printf("%s: %lx =%s\n", __func__, pc, pname); */
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}

gnu/usr.bin/gdb/kgdb/trgt_i386.c

@@ -385,3 +385,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 	/* printf("%s: %llx =%s\n", __func__, pc, pname); */
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}

gnu/usr.bin/gdb/kgdb/trgt_mips.c

@@ -238,3 +238,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 #endif
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}

gnu/usr.bin/gdb/kgdb/trgt_powerpc.c

@@ -199,3 +199,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 	/* printf("%s: %llx =%s\n", __func__, pc, pname); */
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}

gnu/usr.bin/gdb/kgdb/trgt_powerpc64.c

@@ -196,3 +196,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 	/* printf("%s: %llx =%s\n", __func__, pc, pname); */
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}

gnu/usr.bin/gdb/kgdb/trgt_sparc64.c

@@ -203,3 +203,16 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
 	/* printf("%s: %lx =%s\n", __func__, pc, pname); */
 	return (NULL);
 }
+
+/*
+ * This function ensures, that the PC is inside the
+ * function section which is understood by GDB.
+ *
+ * Return 0 when fixup is necessary, -1 otherwise.
+ */
+int
+kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused)
+{
+
+	return (-1);
+}