[commit] Eliminate deprecated_read/write_register_gen

["Ulrich Weigand" <uweigand at de dot ibm dot com>]

Hello,

this patch eliminates two long-deprecated routines from regcache,
deprecated_read_register_gen and deprecated_write_register_gen.

deprecated_read_register_gen still had two uses outside of regcache,
in remote-sim.c (gdbsim_store_register) and target.c (debug_print_register).
The patch replaces both using regcache_cooked_read.

The sole remaining uses were read_register and write_register
respectively; the patch inlines the function contents there.

Tested on s390-ibm-linux.  Committed to mainline.

Bye,
Ulrich


ChangeLog:

	* regcache.c (deprecated_read_register_gen): Remove, inline ...
	(read_register): ... here.
	(deprecated_write_register_gen): Remove, inline ...
	(write_register): ... here.
	* regcache.h (deprecated_read_register_gen): Remove prototype.
	(deprecated_write_register_gen): Likewise.

	* remote-sim.c (gdbsim_store_register): Replace call to
	deprecated_read_register_gen with regcache_cooked_read.
	* target.c (debug_print_register): Replace calls to
	deprecated_read_register_gen and read_register with
	regcache_cooked_read.


diff -urNp gdb-orig/gdb/regcache.c gdb-head/gdb/regcache.c
--- gdb-orig/gdb/regcache.c	2007-04-29 02:24:15.310091000 +0200
+++ gdb-head/gdb/regcache.c	2007-04-29 03:25:09.311055789 +0200
@@ -574,14 +574,6 @@ regcache_raw_write_unsigned (struct regc
 }
 
 void
-deprecated_read_register_gen (int regnum, gdb_byte *buf)
-{
-  gdb_assert (current_regcache != NULL);
-  gdb_assert (current_regcache->descr->gdbarch == current_gdbarch);
-  regcache_cooked_read (current_regcache, regnum, buf);
-}
-
-void
 regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf)
 {
   gdb_assert (regnum >= 0);
@@ -685,14 +677,6 @@ regcache_raw_write (struct regcache *reg
 }
 
 void
-deprecated_write_register_gen (int regnum, gdb_byte *buf)
-{
-  gdb_assert (current_regcache != NULL);
-  gdb_assert (current_regcache->descr->gdbarch == current_gdbarch);
-  regcache_cooked_write (current_regcache, regnum, buf);
-}
-
-void
 regcache_cooked_write (struct regcache *regcache, int regnum,
 		       const gdb_byte *buf)
 {
@@ -806,7 +790,9 @@ ULONGEST
 read_register (int regnum)
 {
   gdb_byte *buf = alloca (register_size (current_gdbarch, regnum));
-  deprecated_read_register_gen (regnum, buf);
+  gdb_assert (current_regcache != NULL);
+  gdb_assert (current_regcache->descr->gdbarch == current_gdbarch);
+  regcache_cooked_read (current_regcache, regnum, buf);
   return (extract_unsigned_integer (buf, register_size (current_gdbarch, regnum)));
 }
 
@@ -841,7 +827,9 @@ write_register (int regnum, LONGEST val)
   size = register_size (current_gdbarch, regnum);
   buf = alloca (size);
   store_signed_integer (buf, size, (LONGEST) val);
-  deprecated_write_register_gen (regnum, buf);
+  gdb_assert (current_regcache != NULL);
+  gdb_assert (current_regcache->descr->gdbarch == current_gdbarch);
+  regcache_cooked_write (current_regcache, regnum, buf);
 }
 
 void
diff -urNp gdb-orig/gdb/regcache.h gdb-head/gdb/regcache.h
--- gdb-orig/gdb/regcache.h	2007-04-29 02:24:15.315090000 +0200
+++ gdb-head/gdb/regcache.h	2007-04-29 03:25:22.384173831 +0200
@@ -157,23 +157,6 @@ extern struct regcache *regcache_dup_no_
 extern void regcache_cpy (struct regcache *dest, struct regcache *src);
 extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src);
 
-/* NOTE: cagney/2002-11-02: The below have been superseded by the
-   regcache_cooked_*() functions found above, and the frame_*()
-   functions found in "frame.h".  Take care though, often more than a
-   simple substitution is required when updating the code.  The
-   change, as far as practical, should avoid adding references to
-   global variables (e.g., current_regcache, current_frame,
-   current_gdbarch or the selected frame) and instead refer to
-   the FRAME or REGCACHE that has been passed into the containing
-   function as parameters.  Consequently, the change typically
-   involves modifying the containing function so that it takes a FRAME
-   or REGCACHE parameter.  In the case of an architecture vector
-   method, there should already be a non-deprecated variant that is
-   parameterized with FRAME or REGCACHE.  */
-
-extern void deprecated_read_register_gen (int regnum, gdb_byte *myaddr);
-extern void deprecated_write_register_gen (int regnum, gdb_byte *myaddr);
-
 /* NOTE: cagney/2002-11-05: This function has been superseeded by
    regcache_raw_supply().  */
 extern void deprecated_registers_fetched (void);
diff -urNp gdb-orig/gdb/remote-sim.c gdb-head/gdb/remote-sim.c
--- gdb-orig/gdb/remote-sim.c	2007-04-29 02:24:15.321089000 +0200
+++ gdb-head/gdb/remote-sim.c	2007-04-29 03:25:09.335052348 +0200
@@ -353,7 +353,7 @@ gdbsim_store_register (int regno)
     {
       char tmp[MAX_REGISTER_SIZE];
       int nr_bytes;
-      deprecated_read_register_gen (regno, tmp);
+      regcache_cooked_read (current_regcache, regno, tmp);
       nr_bytes = sim_store_register (gdbsim_desc,
 				     REGISTER_SIM_REGNO (regno),
 				     tmp, register_size (current_gdbarch, regno));
diff -urNp gdb-orig/gdb/target.c gdb-head/gdb/target.c
--- gdb-orig/gdb/target.c	2007-04-29 02:24:15.329088000 +0200
+++ gdb-head/gdb/target.c	2007-04-29 03:25:09.345050915 +0200
@@ -2160,19 +2160,19 @@ debug_print_register (const char * func,
     fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
   if (regno >= 0)
     {
-      int i;
+      int i, size = register_size (current_gdbarch, regno);
       unsigned char buf[MAX_REGISTER_SIZE];
-      deprecated_read_register_gen (regno, buf);
+      regcache_cooked_read (current_regcache, regno, buf);
       fprintf_unfiltered (gdb_stdlog, " = ");
-      for (i = 0; i < register_size (current_gdbarch, regno); i++)
+      for (i = 0; i < size; i++)
 	{
 	  fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
 	}
-      if (register_size (current_gdbarch, regno) <= sizeof (LONGEST))
+      if (size <= sizeof (LONGEST))
 	{
+	  ULONGEST val = extract_unsigned_integer (buf, size);
 	  fprintf_unfiltered (gdb_stdlog, " 0x%s %s",
-			      paddr_nz (read_register (regno)),
-			      paddr_d (read_register (regno)));
+			      paddr_nz (val), paddr_d (val));
 	}
     }
   fprintf_unfiltered (gdb_stdlog, "\n");
-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com