Create new file regcache.h. Update all uses.

153 files changed, 524 insertions, 140 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ebe87246b30..9ba340054a6 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,175 @@
+Tue Feb 27 23:56:23 2001  Andrew Cagney  <ac131313@redhat.com>
+
+	From Steven Johnson:
+	* regcache.h: New file.
+	
+	* value.h (read_register_bytes, read_register_gen)
+	(write_register_gen, write_register_bytes)
+	(read_register, read_register_pid)
+	(read_signed_register, read_signed_register_pid)
+	(write_register, write_register_pid)
+	(register_cached, set_register_cached)
+	(register_changed, register_buffer)
+	(registers_changed, supply_register): Move declaration from here.
+	* regcache.h: To here.
+	* gdbcore.h (registers_fetched): Ditto.
+	* inferior.h (registers, registers_valid): Ditto.
+
+	* regcache.c (generic_target_read_pc, read_pc_pid, read_pc,
+	generic_target_write_pc, write_pc_pid, write_pc,
+	generic_target_read_sp, read_sp, generic_target_write_sp,
+	write_sp, generic_target_read_fp, read_fp,
+	generic_target_write_fp, write_fp): Add note that these functions
+	will be moved from this file.
+	
+	* a29k-tdep.c: Include "regcache.h".
+	* a68v-nat.c: Ditto.
+	* abug-rom.c: Ditto.
+	* alpha-nat.c: Ditto.
+	* alpha-tdep.c: Ditto.
+	* alphabsd-nat.c: Ditto.
+	* arc-tdep.c: Ditto.
+	* arm-linux-nat.c: Ditto.
+	* arm-linux-tdep.c: Ditto.
+	* arm-tdep.c: Ditto.
+	* blockframe.c: Ditto.
+	* core-aout.c: Ditto.
+	* core-sol2.c: Ditto.
+	* corelow.c: Ditto.
+	* cpu32bug-rom.c: Ditto.
+	* cxux-nat.c: Ditto.
+	* d10v-tdep.c: Ditto.
+	* d30v-tdep.c: Ditto.
+	* dbug-rom.c: Ditto.
+	* dink32-rom.c: Ditto.
+	* dve3900-rom.c: Ditto.
+	* findvar.c: Ditto.
+	* fr30-tdep.c: Ditto.
+	* frame.c: Ditto.
+	* go32-nat.c: Ditto.
+	* h8300-tdep.c: Ditto.
+	* h8500-tdep.c: Ditto.
+	* hp300ux-nat.c: Ditto.
+	* hppa-tdep.c: Ditto.
+	* hppab-nat.c: Ditto.
+	* hppah-nat.c: Ditto.
+	* hppam3-nat.c: Ditto.
+	* hpux-thread.c: Ditto.
+	* i386-linux-nat.c: Ditto.
+	* i386-linux-tdep.c: Ditto.
+	* i386-tdep.c: Ditto.
+	* i386aix-nat.c: Ditto.
+	* i386b-nat.c: Ditto.
+	* i386bsd-nat.c: Ditto.
+	* i386gnu-nat.c: Ditto.
+	* i386ly-tdep.c: Ditto.
+	* i386m3-nat.c: Ditto.
+	* i386mach-nat.c: Ditto.
+	* i386nbsd-nat.c: Ditto.
+	* i386v4-nat.c: Ditto.
+	* i387-nat.c: Ditto.
+	* i387-tdep.c: Ditto.
+	* i960-tdep.c: Ditto.
+	* ia64-aix-nat.c: Ditto.
+	* ia64-linux-nat.c: Ditto.
+	* ia64-tdep.c: Ditto.
+	* infptrace.c: Ditto.
+	* infrun.c: Ditto.
+	* irix4-nat.c: Ditto.
+	* irix5-nat.c: Ditto.
+	* lin-lwp.c: Ditto.
+	* lin-thread.c: Ditto.
+	* lynx-nat.c: Ditto.
+	* m3-nat.c: Ditto.
+	* m32r-rom.c: Ditto.
+	* m32r-tdep.c: Ditto.
+	* m68hc11-tdep.c: Ditto.
+	* m68k-tdep.c: Ditto.
+	* m68klinux-nat.c: Ditto.
+	* m68knbsd-nat.c: Ditto.
+	* m68knbsd-tdep.c: Ditto.
+	* m88k-nat.c: Ditto.
+	* m88k-tdep.c: Ditto.
+	* mac-nat.c: Ditto.
+	* mcore-rom.c: Ditto.
+	* mcore-tdep.c: Ditto.
+	* mi/mi-main.c: Ditto.
+	* mips-nat.c: Ditto.
+	* mips-tdep.c: Ditto.
+	* mipsm3-nat.c: Ditto.
+	* mipsv4-nat.c: Ditto.
+	* mn10200-tdep.c: Ditto.
+	* mn10300-tdep.c: Ditto.
+	* monitor.c: Ditto.
+	* ns32km3-nat.c: Ditto.
+	* ns32knbsd-nat.c: Ditto.
+	* ocd.c: Ditto.
+	* pa64solib.c: Ditto.
+	* ppc-bdm.c: Ditto.
+	* ppc-linux-nat.c: Ditto.
+	* ppc-linux-tdep.c: Ditto.
+	* ppcbug-rom.c: Ditto.
+	* ppcnbsd-nat.c: Ditto.
+	* ptx4-nat.c: Ditto.
+	* regcache.c: Ditto.
+	* remote-adapt.c: Ditto.
+	* remote-array.c: Ditto.
+	* remote-bug.c: Ditto.
+	* remote-e7000.c: Ditto.
+	* remote-eb.c: Ditto.
+	* remote-es.c: Ditto.
+	* remote-est.c: Ditto.
+	* remote-hms.c: Ditto.
+	* remote-mips.c: Ditto.
+	* remote-mm.c: Ditto.
+	* remote-nindy.c: Ditto.
+	* remote-os9k.c: Ditto.
+	* remote-rdi.c: Ditto.
+	* remote-rdp.c: Ditto.
+	* remote-sds.c: Ditto.
+	* remote-sim.c: Ditto.
+	* remote-st.c: Ditto.
+	* remote-udi.c: Ditto.
+	* remote-utils.c: Ditto.
+	* remote-vx.c: Ditto.
+	* remote-vx29k.c: Ditto.
+	* remote-vx68.c: Ditto.
+	* remote-vx960.c: Ditto.
+	* remote-vxmips.c: Ditto.
+	* remote-vxsparc.c: Ditto.
+	* remote.c: Ditto.
+	* rom68k-rom.c: Ditto.
+	* rs6000-nat.c: Ditto.
+	* rs6000-tdep.c: Ditto.
+	* sh-tdep.c: Ditto.
+	* sh3-rom.c: Ditto.
+	* sol-thread.c: Ditto.
+	* solib-svr4.c: Ditto.
+	* somsolib.c: Ditto.
+	* sparc-nat.c: Ditto.
+	* sparc-tdep.c: Ditto.
+	* sparcl-tdep.c: Ditto.
+	* sparclet-rom.c: Ditto.
+	* sun3-nat.c: Ditto.
+	* sun386-nat.c: Ditto.
+	* symm-nat.c: Ditto.
+	* target.c: Ditto.
+	* thread-db.c: Ditto.
+	* thread.c: Ditto.
+	* tic80-tdep.c: Ditto.
+	* tracepoint.c: Ditto.
+	* ultra3-nat.c: Ditto.
+	* umax-xdep.c: Ditto.
+	* uw-thread.c: Ditto.
+	* v850-tdep.c: Ditto.
+	* v850ice.c: Ditto.
+	* valops.c: Ditto.
+	* w65-tdep.c: Ditto.
+	* w89k-rom.c: Ditto.
+	* win32-nat.c: Ditto.
+	* wince.c: Ditto.
+	* z8k-tdep.c: Ditto.
+
 2001-02-28  Matt Hiller  <hiller@redhat.com>	
 	
 	* MAINTAINERS: Add Matt Hiller to Write After Approval list.
diff --git a/gdb/a29k-tdep.c b/gdb/a29k-tdep.c
index 1a2d929ee8b..3f26ff93469 100644
--- a/gdb/a29k-tdep.c
+++ b/gdb/a29k-tdep.c
@@ -27,6 +27,7 @@
 #include "symtab.h"
 #include "inferior.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 /* If all these bits in an instruction word are zero, it is a "tag word"
    which precedes a function entry point and gives stack traceback info.
diff --git a/gdb/a68v-nat.c b/gdb/a68v-nat.c
index 7ad39a67629..e7624154f93 100644
--- a/gdb/a68v-nat.c
+++ b/gdb/a68v-nat.c
@@ -1,5 +1,6 @@
 /* Host-dependent code for Apollo-68ks for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -20,6 +21,7 @@
 
 #include "defs.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #ifndef _ISP__M68K
 #define _ISP__M68K 1
diff --git a/gdb/abug-rom.c b/gdb/abug-rom.c
index 68f48a2304f..75b6f60f127 100644
--- a/gdb/abug-rom.c
+++ b/gdb/abug-rom.c
@@ -1,5 +1,5 @@
 /* Remote debugging interface for ABug Rom monitor for GDB, the GNU debugger.
-   Copyright 1995, 1996, 1998 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 1998, 2001 Free Software Foundation, Inc.
 
    Written by Rob Savoye of Cygnus Support
 
@@ -25,6 +25,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 /* Prototypes for local functions. */
 
diff --git a/gdb/alpha-nat.c b/gdb/alpha-nat.c
index eb12b0d9797..adfa81af4e6 100644
--- a/gdb/alpha-nat.c
+++ b/gdb/alpha-nat.c
@@ -1,5 +1,6 @@
 /* Low level Alpha interface, for GDB when running native.
-   Copyright 1993, 1995, 1996, 1998 Free Software Foundation, Inc.
+   Copyright 1993, 1995, 1996, 1998, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -22,6 +23,7 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "target.h"
+#include "regcache.h"
 #include <sys/ptrace.h>
 #ifdef __linux__
 #include <asm/reg.h>
diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index 571c3d62575..894a4c21fe5 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -1,5 +1,6 @@
 /* Target-dependent code for the ALPHA architecture, for GDB, the GNU Debugger.
-   Copyright 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
+   Copyright 1993, 94, 95, 96, 97, 1998, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -30,6 +31,7 @@
 #include "objfiles.h"
 #include "gdb_string.h"
 #include "linespec.h"
+#include "regcache.h"
 
 /* FIXME: Some of this code should perhaps be merged with mips-tdep.c.  */
 
diff --git a/gdb/alphabsd-nat.c b/gdb/alphabsd-nat.c
index 43cdb750908..e77b31b13aa 100644
--- a/gdb/alphabsd-nat.c
+++ b/gdb/alphabsd-nat.c
@@ -1,5 +1,5 @@
 /* Native-dependent code for Alpha BSD's.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -20,6 +20,7 @@
 
 #include "defs.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/ptrace.h>
diff --git a/gdb/arc-tdep.c b/gdb/arc-tdep.c
index 701ee554122..29a542d6b25 100644
--- a/gdb/arc-tdep.c
+++ b/gdb/arc-tdep.c
@@ -26,6 +26,7 @@
 #include "floatformat.h"
 #include "symtab.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 /* Local functions */
 
diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
index f0815bc2962..5d1487e934e 100644
--- a/gdb/arm-linux-nat.c
+++ b/gdb/arm-linux-nat.c
@@ -1,5 +1,5 @@
 /* GNU/Linux on ARM native support.
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 #include <sys/user.h>
 #include <sys/ptrace.h>
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index f50f7121f49..293a8b72057 100644
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -1,5 +1,5 @@
 /* GNU/Linux on ARM target support.
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,6 +25,7 @@
 #include "floatformat.h"
 #include "gdbcore.h"
 #include "frame.h"
+#include "regcache.h"
 
 /* For arm_linux_skip_solib_resolver.  */
 #include "symtab.h"
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 3ca6dbebe21..0a0ec414a3e 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -1,6 +1,6 @@
 /* Common target dependent code for GDB on ARM systems.
-   Copyright 1988, 1989, 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000
-   Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1993, 1995, 1996, 1997, 1998,
+   1999, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -29,6 +29,7 @@
 #include "coff/internal.h"	/* Internal format of COFF symbols in BFD */
 #include "dis-asm.h"		/* For register flavors. */
 #include <ctype.h>		/* for isupper () */
+#include "regcache.h"
 
 /* Each OS has a different mechanism for accessing the various
    registers stored in the sigcontext structure.
diff --git a/gdb/blockframe.c b/gdb/blockframe.c
index eec0e109e82..0b0dce1fda8 100644
--- a/gdb/blockframe.c
+++ b/gdb/blockframe.c
@@ -1,7 +1,7 @@
 /* Get info from stack frames;
    convert between frames, blocks, functions and pc values.
-   Copyright 1986, 87, 88, 89, 91, 94, 95, 96, 97, 1998
-   Free Software Foundation, Inc.
+   Copyright 1986, 87, 88, 89, 91, 94, 95, 96, 97, 1998, 2001 Free
+   Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -31,6 +31,7 @@
 #include "target.h"		/* for target_has_stack */
 #include "inferior.h"		/* for read_pc */
 #include "annotate.h"
+#include "regcache.h"
 
 /* Prototypes for exported functions. */
 
diff --git a/gdb/core-aout.c b/gdb/core-aout.c
index 367090ff6d4..edd94e2fc8c 100644
--- a/gdb/core-aout.c
+++ b/gdb/core-aout.c
@@ -1,5 +1,5 @@
 /* Extract registers from a "standard" core file, for GDB.
-   Copyright (C) 1988-1998  Free Software Foundation, Inc.
+   Copyright 1988-1998, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -38,6 +38,7 @@
 #include "gdbcore.h"
 #include "value.h"		/* For supply_register.  */
 #include "inferior.h"		/* For ARCH_NUM_REGS. */
+#include "regcache.h"
 
 /* These are needed on various systems to expand REGISTER_U_ADDR.  */
 #ifndef USG
diff --git a/gdb/core-sol2.c b/gdb/core-sol2.c
index 5a32c041b85..e56e46a3b1b 100644
--- a/gdb/core-sol2.c
+++ b/gdb/core-sol2.c
@@ -1,5 +1,5 @@
 /* Machine independent support for Solaris 2 core files for GDB.
-   Copyright 1994, 2000 Free Software Foundation, Inc.
+   Copyright 1994, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -42,6 +42,7 @@
 #include <fcntl.h>
 #include <errno.h>
 #include "gdb_string.h"
+#include "regcache.h"
 
 #include "inferior.h"
 #include "target.h"
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 05baf334cbd..5c5eba9d755 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -35,6 +35,7 @@
 #include "target.h"
 #include "gdbcore.h"
 #include "gdbthread.h"
+#include "regcache.h"
 
 #ifndef O_BINARY
 #define O_BINARY 0
diff --git a/gdb/cpu32bug-rom.c b/gdb/cpu32bug-rom.c
index 6b77506a5a7..25a30463682 100644
--- a/gdb/cpu32bug-rom.c
+++ b/gdb/cpu32bug-rom.c
@@ -1,5 +1,5 @@
 /* Remote debugging interface for CPU32Bug Rom monitor for GDB, the GNU debugger.
-   Copyright 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
 
    Written by Stu Grossman of Cygnus Support
 
@@ -25,6 +25,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void cpu32bug_open (char *args, int from_tty);
 
diff --git a/gdb/cxux-nat.c b/gdb/cxux-nat.c
index 74b201049ad..f1fa0759709 100644
--- a/gdb/cxux-nat.c
+++ b/gdb/cxux-nat.c
@@ -1,5 +1,6 @@
 /* Native support for Motorola 88k running Harris CX/UX.
-   Copyright 1988, 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+   Copyright 1988, 1990, 1991, 1992, 1993, 1994, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -33,6 +34,7 @@
 #include "symfile.h"
 #include "objfiles.h"
 #include "symtab.h"
+#include "regcache.h"
 
 #ifndef USER			/* added to support BCS ptrace_user */
 #define USER ptrace_user
diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c
index f0d749a292f..6b3ae87be46 100644
--- a/gdb/d10v-tdep.c
+++ b/gdb/d10v-tdep.c
@@ -35,6 +35,7 @@
 #include "objfiles.h"
 #include "language.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 #include "floatformat.h"
 #include "sim-d10v.h"
diff --git a/gdb/d30v-tdep.c b/gdb/d30v-tdep.c
index a94a4d9e91e..84ed9580ec4 100644
--- a/gdb/d30v-tdep.c
+++ b/gdb/d30v-tdep.c
@@ -33,6 +33,7 @@
 #include "dis-asm.h"
 #include "symfile.h"
 #include "objfiles.h"
+#include "regcache.h"
 
 #include "language.h" /* For local_hex_string() */
 
diff --git a/gdb/dbug-rom.c b/gdb/dbug-rom.c
index dff1a3be3af..6a660ebcd0f 100644
--- a/gdb/dbug-rom.c
+++ b/gdb/dbug-rom.c
@@ -1,5 +1,5 @@
 /* Remote debugging interface to dBUG ROM monitor for GDB, the GNU debugger.
-   Copyright 1996, 1999 Free Software Foundation, Inc.
+   Copyright 1996, 1999, 2001 Free Software Foundation, Inc.
 
    Written by Stan Shebs of Cygnus Support.
 
@@ -30,6 +30,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void dbug_open (char *args, int from_tty);
 
diff --git a/gdb/dink32-rom.c b/gdb/dink32-rom.c
index 2ad9c6153dc..cb2caaa2c3f 100644
--- a/gdb/dink32-rom.c
+++ b/gdb/dink32-rom.c
@@ -1,6 +1,6 @@
 /* Remote debugging interface for DINK32 (PowerPC) ROM monitor for
    GDB, the GNU debugger.
-   Copyright 1997 Free Software Foundation, Inc.
+   Copyright 1997, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +26,7 @@
 #include "serial.h"
 #include "symfile.h" /* For generic_load() */
 #include "inferior.h" /* For write_pc() */
+#include "regcache.h"
 
 static void dink32_open (char *args, int from_tty);
 
diff --git a/gdb/dve3900-rom.c b/gdb/dve3900-rom.c
index 5c6755a3bb0..974306130c5 100644
--- a/gdb/dve3900-rom.c
+++ b/gdb/dve3900-rom.c
@@ -1,6 +1,6 @@
 /* Remote debugging interface for Densan DVE-R3900 ROM monitor for
    GDB, the GNU debugger.
-   Copyright 1997 Free Software Foundation, Inc.
+   Copyright 1997, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +28,7 @@
 #include "command.h"
 #include "gdb_string.h"
 #include <time.h>
+#include "regcache.h"
 
 /* Type of function passed to bfd_map_over_sections.  */
 
diff --git a/gdb/findvar.c b/gdb/findvar.c
index 88ca3158879..969097fdefd 100644
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -30,6 +30,7 @@
 #include "gdb_string.h"
 #include "floatformat.h"
 #include "symfile.h"		/* for overlay functions */
+#include "regcache.h"
 
 /* This is used to indicate that we don't know the format of the floating point
    number.  Typically, this is useful for native ports, where the actual format
diff --git a/gdb/fr30-tdep.c b/gdb/fr30-tdep.c
index c06542adf96..5198bf3197a 100644
--- a/gdb/fr30-tdep.c
+++ b/gdb/fr30-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for the Fujitsu FR30.
-   Copyright 1999, Free Software Foundation, Inc.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +28,7 @@
 #include "gdb_string.h"
 #include "gdbcore.h"
 #include "symfile.h"
+#include "regcache.h"
 
 /* An expression that tells us whether the function invocation represented
    by FI does not have a frame on the stack associated with it.  */
diff --git a/gdb/frame.c b/gdb/frame.c
index e29729171c9..f68bc543563 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -24,6 +24,7 @@
 #include "target.h"
 #include "value.h"
 #include "inferior.h"	/* for inferior_pid */
+#include "regcache.h"
 
 /* FIND_SAVED_REGISTER ()
 
diff --git a/gdb/gdbcore.h b/gdb/gdbcore.h
index c3db1da0828..e57f5140e4d 100644
--- a/gdb/gdbcore.h
+++ b/gdb/gdbcore.h
@@ -108,8 +108,6 @@ extern void validate_files (void);
 
 extern CORE_ADDR register_addr (int regno, CORE_ADDR blockend);
 
-extern void registers_fetched (void);
-
 #if !defined (KERNEL_U_ADDR)
 extern CORE_ADDR kernel_u_addr;
 #define KERNEL_U_ADDR kernel_u_addr
diff --git a/gdb/gdbtk/generic/gdbtk-cmds.c b/gdb/gdbtk/generic/gdbtk-cmds.c
index 53587f042b8..399d7487f08 100644
--- a/gdb/gdbtk/generic/gdbtk-cmds.c
+++ b/gdb/gdbtk/generic/gdbtk-cmds.c
@@ -36,6 +36,7 @@
 #include "tracepoint.h"
 #include "demangle.h"
 #include "frame.h"
+#include "regcache.h"
 #include "tui/tui-file.h"
 
 #include <sys/stat.h>
diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
index 582ff1626ff..461c783918f 100644
--- a/gdb/go32-nat.c
+++ b/gdb/go32-nat.c
@@ -29,6 +29,7 @@
 #include "floatformat.h"
 #include "buildsym.h"
 #include "i387-nat.h"
+#include "regcache.h"
 
 #include <stdio.h>		/* required for __DJGPP_MINOR__ */
 #include <stdlib.h>
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 84e190b14a9..909459824d9 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -1,5 +1,5 @@
 /* Target-machine dependent code for Hitachi H8/300, for GDB.
-   Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
+   Copyright 1988, 1990, 1991, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -33,6 +33,7 @@
 #include "gdbcore.h"
 #include "gdb_string.h"
 #include "value.h"
+#include "regcache.h"
 
 extern int h8300hmode, h8300smode;
 
diff --git a/gdb/h8500-tdep.c b/gdb/h8500-tdep.c
index 2f20c157aa6..38b5db0c8c2 100644
--- a/gdb/h8500-tdep.c
+++ b/gdb/h8500-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Hitachi H8/500, for GDB.
-   Copyright 1993, 1994, 1995 Free Software Foundation, Inc.
+   Copyright 1993, 1994, 1995, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -32,6 +32,7 @@
 #include "value.h"
 #include "dis-asm.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #define UNSIGNED_SHORT(X) ((X) & 0xffff)
 
diff --git a/gdb/hp300ux-nat.c b/gdb/hp300ux-nat.c
index ca0a802d42e..0f64e4df2df 100644
--- a/gdb/hp300ux-nat.c
+++ b/gdb/hp300ux-nat.c
@@ -1,5 +1,6 @@
 /* HP/UX native interface for HP 300's, for GDB when running under Unix.
-   Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "frame.h"
 #include "inferior.h"
+#include "regcache.h"
 
 /* Defining this means some system include files define some extra stuff.  */
 #define WOPR
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 551fd8ed645..a320f33ca30 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -1,5 +1,6 @@
 /* Target-dependent code for the HP PA architecture, for GDB.
-   Copyright 1986, 1987, 1989-1996, 1999-2000 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989-1996, 1999-2000, 2001 Free Software
+   Foundation, Inc.
 
    Contributed by the Center for Software Science at the
    University of Utah (pa-gdb-bugs@cs.utah.edu).
@@ -26,6 +27,7 @@
 #include "bfd.h"
 #include "inferior.h"
 #include "value.h"
+#include "regcache.h"
 
 /* For argument passing to the inferior */
 #include "symtab.h"
diff --git a/gdb/hppab-nat.c b/gdb/hppab-nat.c
index 17a4dc763a3..d2666172edb 100644
--- a/gdb/hppab-nat.c
+++ b/gdb/hppab-nat.c
@@ -1,7 +1,8 @@
 /* Machine-dependent hooks for the unix child process stratum.  This
    code is for the HP PA-RISC cpu.
 
-   Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 2001 Free
+   Software Foundation, Inc.
 
    Contributed by the Center for Software Science at the
    University of Utah (pa-gdb-bugs@cs.utah.edu).
@@ -26,6 +27,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "target.h"
+#include "regcache.h"
 #include <sys/ptrace.h>
 
 /* Use an extra level of indirection for ptrace calls.
diff --git a/gdb/hppah-nat.c b/gdb/hppah-nat.c
index 840813d6c27..aa50588071b 100644
--- a/gdb/hppah-nat.c
+++ b/gdb/hppah-nat.c
@@ -30,6 +30,7 @@
 #include <sys/ptrace.h>
 #include "gdbcore.h"
 #include "gdb_wait.h"
+#include "regcache.h"
 #include <signal.h>
 
 extern CORE_ADDR text_end;
diff --git a/gdb/hppam3-nat.c b/gdb/hppam3-nat.c
index a3d4e5b0070..07239b7d7ee 100644
--- a/gdb/hppam3-nat.c
+++ b/gdb/hppam3-nat.c
@@ -1,5 +1,5 @@
 /* Low level interface to HP800 running mach 4.0.
-   Copyright (C) 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +21,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include <stdio.h>
 
diff --git a/gdb/hpux-thread.c b/gdb/hpux-thread.c
index 4df446eb609..90ce323ee49 100644
--- a/gdb/hpux-thread.c
+++ b/gdb/hpux-thread.c
@@ -1,5 +1,5 @@
 /* Low level interface for debugging HPUX/DCE threads for GDB, the GNU debugger.
-   Copyright 1996, 1999 Free Software Foundation, Inc.
+   Copyright 1996, 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -39,6 +39,7 @@
 #include "gdbthread.h"
 #include "target.h"
 #include "inferior.h"
+#include "regcache.h"
 #include <fcntl.h>
 #include <sys/stat.h>
 #include "gdbcore.h"
diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c
index c92d96c08e0..47e78708a24 100644
--- a/gdb/i386-linux-nat.c
+++ b/gdb/i386-linux-nat.c
@@ -21,6 +21,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/ptrace.h>
 #include <sys/user.h>
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index e7fbc38196b..ee6ad8f7cf5 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Linux running on i386's, for GDB.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "gdbcore.h"
 #include "frame.h"
 #include "value.h"
+#include "regcache.h"
 
 /* For i386_linux_skip_solib_resolver.  */
 #include "symtab.h"
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index fd95baa9338..d2f4b22712c 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -30,6 +30,7 @@
 #include "gdbcmd.h"
 #include "command.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 static long i386_get_frame_setup (CORE_ADDR);
 
diff --git a/gdb/i386aix-nat.c b/gdb/i386aix-nat.c
index c32f151a2ba..0d646decef6 100644
--- a/gdb/i386aix-nat.c
+++ b/gdb/i386aix-nat.c
@@ -1,5 +1,6 @@
 /* Intel 386 native support.
-   Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -23,6 +24,7 @@
 #include "inferior.h"
 #include "language.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #ifdef USG
 #include <sys/types.h>
diff --git a/gdb/i386b-nat.c b/gdb/i386b-nat.c
index 12a27a9085c..8a4f2f3edf4 100644
--- a/gdb/i386b-nat.c
+++ b/gdb/i386b-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for BSD Unix running on i386's, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,6 +28,7 @@
 #include <machine/frame.h>
 #include "inferior.h"
 #include "gdbcore.h" /* for registers_fetched() */
+#include "regcache.h"
 
 void
 fetch_inferior_registers (int regno)
diff --git a/gdb/i386bsd-nat.c b/gdb/i386bsd-nat.c
index a866a9b5ce9..e991ba0fa71 100644
--- a/gdb/i386bsd-nat.c
+++ b/gdb/i386bsd-nat.c
@@ -1,5 +1,5 @@
 /* Native-dependent code for modern i386 BSD's.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -20,6 +20,7 @@
 
 #include "defs.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/ptrace.h>
diff --git a/gdb/i386gnu-nat.c b/gdb/i386gnu-nat.c
index fca14e47114..8dfc3fdd29b 100644
--- a/gdb/i386gnu-nat.c
+++ b/gdb/i386gnu-nat.c
@@ -1,5 +1,6 @@
 /* Low level interface to i386 running the GNU Hurd.
-   Copyright (C) 1992, 1995, 1996, 2000 Free Software Foundation, Inc.
+   Copyright 1992, 1995, 1996, 2000, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include "gdb_assert.h"
 #include <stdio.h>
diff --git a/gdb/i386ly-tdep.c b/gdb/i386ly-tdep.c
index 0122479a19b..e0c028770ee 100644
--- a/gdb/i386ly-tdep.c
+++ b/gdb/i386ly-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Intel 386 running LynxOS.
-   Copyright 1993 Free Software Foundation, Inc.
+   Copyright 1993, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 /* Return the PC of the caller from the call frame.  Assumes the subr prologue
    has already been executed, and the frame pointer setup.  If this is the
diff --git a/gdb/i386m3-nat.c b/gdb/i386m3-nat.c
index 5f3d130693e..fff34baeeb0 100644
--- a/gdb/i386m3-nat.c
+++ b/gdb/i386m3-nat.c
@@ -1,5 +1,5 @@
 /* Low level interface to I386 running mach 3.0.
-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright 1992, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +21,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include <stdio.h>
 
diff --git a/gdb/i386mach-nat.c b/gdb/i386mach-nat.c
index 1759b0fb215..ef513d79a3c 100644
--- a/gdb/i386mach-nat.c
+++ b/gdb/i386mach-nat.c
@@ -1,5 +1,6 @@
 /* Native dependent code for Mach 386's for GDB, the GNU debugger.
-   Copyright (C) 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 1992, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +23,7 @@
 #include "frame.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/param.h>
 #include <sys/dir.h>
diff --git a/gdb/i386nbsd-nat.c b/gdb/i386nbsd-nat.c
index 0c069d12e60..d7444114e8b 100644
--- a/gdb/i386nbsd-nat.c
+++ b/gdb/i386nbsd-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for NetBSD/i386, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000
-   Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001 Free
+   Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +26,7 @@
 #include <machine/frame.h>
 #include "inferior.h"
 #include "gdbcore.h" /* for registers_fetched() */
+#include "regcache.h"
 
 #define RF(dst, src) \
 	memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
diff --git a/gdb/i386v4-nat.c b/gdb/i386v4-nat.c
index 97506476c73..ee0fb5178d6 100644
--- a/gdb/i386v4-nat.c
+++ b/gdb/i386v4-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for SVR4 Unix running on i386's, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1996, 1998 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1996, 1998, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "value.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
diff --git a/gdb/i387-nat.c b/gdb/i387-nat.c
index 49357c47096..f22b4078c21 100644
--- a/gdb/i387-nat.c
+++ b/gdb/i387-nat.c
@@ -21,6 +21,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "value.h"
+#include "regcache.h"
 
 #include "i387-nat.h"
 
diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index 88b65a44814..ea3e48ddc45 100644
--- a/gdb/i387-tdep.c
+++ b/gdb/i387-tdep.c
@@ -1,5 +1,6 @@
 /* Intel 387 floating point stuff.
-   Copyright (C) 1988, 89, 91, 98, 99, 2000 Free Software Foundation, Inc.
+   Copyright 1988, 89, 91, 98, 99, 2000, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,6 +26,7 @@
 #include "value.h"
 #include "gdbcore.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 
 /* FIXME: Eliminate the next two functions when we have the time to
diff --git a/gdb/i960-tdep.c b/gdb/i960-tdep.c
index 27fc2062b7e..35e47f1a626 100644
--- a/gdb/i960-tdep.c
+++ b/gdb/i960-tdep.c
@@ -1,5 +1,6 @@
 /* Target-machine dependent code for the Intel 960
-   Copyright 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+   Copyright 1991, 1992, 1993, 1994, 1995, 2001 Free Software
+   Foundation, Inc.
    Contributed by Intel Corporation.
    examine_prologue and other parts contributed by Wind River Systems.
 
@@ -28,6 +29,7 @@
 #include "target.h"
 #include "gdbcore.h"
 #include "inferior.h"
+#include "regcache.h"
 
 static CORE_ADDR next_insn (CORE_ADDR memaddr,
 			    unsigned int *pword1, unsigned int *pword2);
diff --git a/gdb/ia64-aix-nat.c b/gdb/ia64-aix-nat.c
index 3d747882c76..c41cc7cc88c 100644
--- a/gdb/ia64-aix-nat.c
+++ b/gdb/ia64-aix-nat.c
@@ -22,6 +22,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 #include <sys/procfs.h>
 
 #include "symtab.h"
diff --git a/gdb/ia64-linux-nat.c b/gdb/ia64-linux-nat.c
index bd07c3b96b1..50217f12582 100644
--- a/gdb/ia64-linux-nat.c
+++ b/gdb/ia64-linux-nat.c
@@ -1,5 +1,5 @@
 /* Functions specific to running gdb native on IA-64 running Linux.
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <signal.h>
 #include <sys/ptrace.h>
diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index eb7472749fe..5efd58a92a5 100644
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -25,6 +25,7 @@
 #include "gdbcore.h"
 #include "arch-utils.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include "objfiles.h"
 #include "elf/common.h"		/* for DT_PLTGOT value */
diff --git a/gdb/inferior.h b/gdb/inferior.h
index 69464b5e53e..7ec1e87b3ec 100644
--- a/gdb/inferior.h
+++ b/gdb/inferior.h
@@ -111,16 +111,6 @@ extern int inferior_ignoring_leading_exec_events;
 
 extern struct environ *inferior_environ;
 
-/* Character array containing an image of the inferior programs'
-   registers. */
-
-extern char *registers;
-
-/* Character array containing the current state of each register
-   (unavailable<0, valid=0, invalid>0). */
-
-extern signed char *register_valid;
-
 extern void clear_proceed_status (void);
 
 extern void proceed (CORE_ADDR, enum target_signal, int);
diff --git a/gdb/infptrace.c b/gdb/infptrace.c
index e4637ee28f1..0770d572625 100644
--- a/gdb/infptrace.c
+++ b/gdb/infptrace.c
@@ -24,6 +24,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 #include "gdb_wait.h"
 
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 5266c88ca32..e200d6d4c8e 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -35,6 +35,7 @@
 #include "top.h"
 #include <signal.h>
 #include "inf-loop.h"
+#include "regcache.h"
 
 /* Prototypes for local functions */
 
diff --git a/gdb/irix4-nat.c b/gdb/irix4-nat.c
index 506d57bcd66..dc244759569 100644
--- a/gdb/irix4-nat.c
+++ b/gdb/irix4-nat.c
@@ -1,6 +1,6 @@
 /* Native support for the SGI Iris running IRIX version 4, for GDB.
-   Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1995
-   Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1995, 2001 Free
+   Software Foundation, Inc.
    Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
    and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
    Implemented for Irix 4.x by Garrett A. Wollman.
@@ -25,6 +25,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/time.h>
 #include <sys/procfs.h>
diff --git a/gdb/irix5-nat.c b/gdb/irix5-nat.c
index 5fe41fa004b..88933928c7c 100644
--- a/gdb/irix5-nat.c
+++ b/gdb/irix5-nat.c
@@ -1,6 +1,6 @@
 /* Native support for the SGI Iris running IRIX version 5, for GDB.
-   Copyright 1988, 89, 90, 91, 92, 93, 94, 95, 96, 98, 1999
-   Free Software Foundation, Inc.
+   Copyright 1988, 89, 90, 91, 92, 93, 94, 95, 96, 98, 1999, 2001 Free
+   Software Foundation, Inc.
    Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
    and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
    Implemented for Irix 4.x by Garrett A. Wollman.
@@ -27,6 +27,7 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "target.h"
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <sys/time.h>
diff --git a/gdb/lin-lwp.c b/gdb/lin-lwp.c
index 94af2e82684..c2a654ea521 100644
--- a/gdb/lin-lwp.c
+++ b/gdb/lin-lwp.c
@@ -1,5 +1,5 @@
 /* Multi-threaded debugging support for Linux (LWP layer).
-   Copyright 2000 Free Software Foundation, Inc.
+   Copyright 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -29,6 +29,7 @@
 #include "gdbthread.h"
 #include "inferior.h"
 #include "target.h"
+#include "regcache.h"
 
 #define DEBUG 1
 
diff --git a/gdb/lin-thread.c b/gdb/lin-thread.c
index b3fd14ca961..6a88b8968c3 100644
--- a/gdb/lin-thread.c
+++ b/gdb/lin-thread.c
@@ -1,6 +1,6 @@
 /* Multi-threaded debugging support for the thread_db interface,
    used on operating systems such as Solaris and Linux.
-   Copyright 1999 Free Software Foundation, Inc.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -101,6 +101,7 @@
 #include "target.h"
 #include "inferior.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 #include "gdb_wait.h"
 
diff --git a/gdb/lynx-nat.c b/gdb/lynx-nat.c
index 38bd6d3ddfb..3e376c32424 100644
--- a/gdb/lynx-nat.c
+++ b/gdb/lynx-nat.c
@@ -1,5 +1,5 @@
 /* Native-dependent code for LynxOS.
-   Copyright 1993, 1994 Free Software Foundation, Inc.
+   Copyright 1993, 1994, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -23,6 +23,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/ptrace.h>
 #include <sys/wait.h>
diff --git a/gdb/m3-nat.c b/gdb/m3-nat.c
index cb3cccf301f..33de4f6bbcb 100644
--- a/gdb/m3-nat.c
+++ b/gdb/m3-nat.c
@@ -57,6 +57,7 @@
 #include "gdb_wait.h"
 #include "gdbcmd.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #if 0
 #include <servers/machid_lib.h>
diff --git a/gdb/m32r-rom.c b/gdb/m32r-rom.c
index 2dfac770ea2..65a61ad2227 100644
--- a/gdb/m32r-rom.c
+++ b/gdb/m32r-rom.c
@@ -37,6 +37,7 @@
 #include "objfiles.h"		/* for ALL_OBJFILES etc. */
 #include "inferior.h"		/* for write_pc() */
 #include <ctype.h>
+#include "regcache.h"
 
 extern void report_transfer_performance (unsigned long, time_t, time_t);
 
diff --git a/gdb/m32r-tdep.c b/gdb/m32r-tdep.c
index e8684033c88..5165fd2dcf0 100644
--- a/gdb/m32r-tdep.c
+++ b/gdb/m32r-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for the Mitsubishi m32r for GDB, the GNU debugger.
-   Copyright 1996, Free Software Foundation, Inc.
+   Copyright 1996, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +28,7 @@
 #include "gdb_string.h"
 #include "gdbcore.h"
 #include "symfile.h"
+#include "regcache.h"
 
 /* Function: m32r_use_struct_convention
    Return nonzero if call_function should allocate stack space for a
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index 64f78108454..a636b34c0e8 100644
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Motorola 68HC11 & 68HC12
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
    Contributed by Stephane Carrez, stcarrez@worldnet.fr
 
 This file is part of GDB.
@@ -33,6 +33,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "symfile.h"
 #include "objfiles.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 #include "target.h"
 #include "opcode/m68hc11.h"
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index c66615bea23..d4b717621e1 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -26,6 +26,7 @@
 #include "value.h"
 #include "gdb_string.h"
 #include "inferior.h"
+#include "regcache.h"
 
 
 #define P_LINKL_FP	0x480e
diff --git a/gdb/m68klinux-nat.c b/gdb/m68klinux-nat.c
index b78b8a5acb3..b7adda55c9d 100644
--- a/gdb/m68klinux-nat.c
+++ b/gdb/m68klinux-nat.c
@@ -1,5 +1,5 @@
 /* Motorola m68k native support for Linux
-   Copyright (C) 1996,1998 Free Software Foundation, Inc.
+   Copyright 1996, 1998, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -23,6 +23,7 @@
 #include "inferior.h"
 #include "language.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #ifdef USG
 #include <sys/types.h>
diff --git a/gdb/m68knbsd-nat.c b/gdb/m68knbsd-nat.c
index 6279f65ef27..0595c2c5e33 100644
--- a/gdb/m68knbsd-nat.c
+++ b/gdb/m68knbsd-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for Motorola m68k's running NetBSD, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,6 +26,7 @@
 #include <machine/frame.h>
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 void
 fetch_inferior_registers (int regno)
diff --git a/gdb/m68knbsd-tdep.c b/gdb/m68knbsd-tdep.c
index 0b49cac58ee..520d14fa47f 100644
--- a/gdb/m68knbsd-tdep.c
+++ b/gdb/m68knbsd-tdep.c
@@ -21,6 +21,7 @@
 
 #include "defs.h"
 #include "gdbtypes.h"
+#include "regcache.h"
 
 int
 m68knbsd_use_struct_convention (int gcc_p, struct type *type)
diff --git a/gdb/m88k-nat.c b/gdb/m88k-nat.c
index 0ce30e71b1a..164f12dadbd 100644
--- a/gdb/m88k-nat.c
+++ b/gdb/m88k-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent Motorola 88xxx support for GDB, the GNU Debugger.
-   Copyright 1988, 1990, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1988, 1990, 1991, 1992, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "frame.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/param.h>
diff --git a/gdb/m88k-tdep.c b/gdb/m88k-tdep.c
index afe1ca2d7e1..1148bc875e1 100644
--- a/gdb/m88k-tdep.c
+++ b/gdb/m88k-tdep.c
@@ -1,5 +1,6 @@
 /* Target-machine dependent code for Motorola 88000 series, for GDB.
-   Copyright 1988, 1990, 1991, 1994, 1995 Free Software Foundation, Inc.
+   Copyright 1988, 1990, 1991, 1994, 1995, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +27,7 @@
 #include "symtab.h"
 #include "setjmp.h"
 #include "value.h"
+#include "regcache.h"
 
 /* Size of an instruction */
 #define	BYTES_PER_88K_INSN	4
diff --git a/gdb/mac-nat.c b/gdb/mac-nat.c
index 864fcabaf20..12fdb299447 100644
--- a/gdb/mac-nat.c
+++ b/gdb/mac-nat.c
@@ -1,5 +1,5 @@
 /* Target-vector operations for controlling Mac applications, for GDB.
-   Copyright (C) 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
    Written by Stan Shebs.  Contributed by Cygnus Support.
 
    This file is part of GDB.
@@ -36,6 +36,7 @@
 #include "gdb_string.h"
 #include "gdbthread.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 #include <Processes.h>
 
diff --git a/gdb/mcore-rom.c b/gdb/mcore-rom.c
index 7470cb8dc15..1be7842df9d 100644
--- a/gdb/mcore-rom.c
+++ b/gdb/mcore-rom.c
@@ -1,6 +1,6 @@
 /* Remote debugging interface to Motorola picobug monitor for gdb,
    the GNU debugger.
-   Copyright 1999 Free Software Foundation, Inc.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -24,6 +24,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 /* Functions used only in this file. */
 
diff --git a/gdb/mcore-tdep.c b/gdb/mcore-tdep.c
index c99a2de34f7..d7678e3d663 100644
--- a/gdb/mcore-tdep.c
+++ b/gdb/mcore-tdep.c
@@ -1,5 +1,5 @@
 /* Target-machine dependent code for Motorola MCore for GDB, the GNU debugger
-   Copyright (C) 1999 Free Software Foundation, Inc.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "symtab.h"
 #include "value.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 /* Functions declared and used only in this file */
 
diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 1472039ba3f..5851d710289 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -1,5 +1,5 @@
 /* MI Command Set.
-   Copyright (C) 2000, Free Software Foundation, Inc.
+   Copyright 2000, 2001 Free Software Foundation, Inc.
    Contributed by Cygnus Solutions (a Red Hat company).
 
    This file is part of GDB.
@@ -37,6 +37,7 @@
 #include "event-top.h"
 #include "gdbcore.h"		/* for write_memory() */
 #include "value.h"		/* for write_register_bytes() */
+#include "regcache.h"
 #include <ctype.h>
 #include <sys/time.h>
 
diff --git a/gdb/mips-nat.c b/gdb/mips-nat.c
index cf8a31a837c..895db11793b 100644
--- a/gdb/mips-nat.c
+++ b/gdb/mips-nat.c
@@ -1,5 +1,6 @@
 /* Low level DECstation interface to ptrace, for GDB when running native.
-   Copyright 1988, 1989, 1991, 1992, 1995 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1995, 2001 Free Software
+   Foundation, Inc.
    Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
    and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
 
@@ -23,6 +24,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 #include <sys/ptrace.h>
 #include <sys/types.h>
 #include <sys/param.h>
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 569d0769560..034a71ff67f 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -37,6 +37,7 @@
 #include "gdbtypes.h"
 #include "target.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 #include "opcode/mips.h"
 #include "elf/mips.h"
diff --git a/gdb/mipsm3-nat.c b/gdb/mipsm3-nat.c
index ba43b8d9097..b1abf1530d0 100644
--- a/gdb/mipsm3-nat.c
+++ b/gdb/mipsm3-nat.c
@@ -1,5 +1,5 @@
 /* Definitions to make GDB run on a mips box under Mach 3.0
-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright (C) 1992, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +26,7 @@
 
 #include "defs.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <stdio.h>
 
diff --git a/gdb/mipsv4-nat.c b/gdb/mipsv4-nat.c
index cca40065705..702835555f9 100644
--- a/gdb/mipsv4-nat.c
+++ b/gdb/mipsv4-nat.c
@@ -1,5 +1,5 @@
 /* Native support for MIPS running SVR4, for GDB.
-   Copyright 1994, 1995 Free Software Foundation, Inc.
+   Copyright 1994, 1995, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,7 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "target.h"
+#include "regcache.h"
 
 #include <sys/time.h>
 #include <sys/procfs.h>
diff --git a/gdb/mn10200-tdep.c b/gdb/mn10200-tdep.c
index 59cf2380469..d58c8e5fe30 100644
--- a/gdb/mn10200-tdep.c
+++ b/gdb/mn10200-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for the Matsushita MN10200 for GDB, the GNU debugger.
-   Copyright 1997 Free Software Foundation, Inc.
+   Copyright 1997, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +28,7 @@
 #include "gdb_string.h"
 #include "gdbcore.h"
 #include "symfile.h"
+#include "regcache.h"
 
 
 /* Should call_function allocate stack space for a struct return?  */
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index 0e03810d51d..444df210dc4 100644
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -29,6 +29,7 @@
 #include "gdb_string.h"
 #include "gdbcore.h"
 #include "symfile.h"
+#include "regcache.h"
 
 extern void _initialize_mn10300_tdep (void);
 static CORE_ADDR mn10300_analyze_prologue (struct frame_info *fi,
diff --git a/gdb/monitor.c b/gdb/monitor.c
index 7e3580e1b11..d2b02464e19 100644
--- a/gdb/monitor.c
+++ b/gdb/monitor.c
@@ -51,6 +51,7 @@
 #include "inferior.h"
 #include "gdb_regex.h"
 #include "srec.h"
+#include "regcache.h"
 
 static char *dev_name;
 static struct target_ops *targ_ops;
diff --git a/gdb/ns32km3-nat.c b/gdb/ns32km3-nat.c
index 23d3a826fbc..89b988e65c3 100644
--- a/gdb/ns32km3-nat.c
+++ b/gdb/ns32km3-nat.c
@@ -1,5 +1,5 @@
 /* Low level interface to ns532 running mach 3.0.
-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright 1992, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -20,6 +20,7 @@
 
 #include "defs.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <stdio.h>
 
diff --git a/gdb/ns32knbsd-nat.c b/gdb/ns32knbsd-nat.c
index 460f78e9d0d..e1efdacbcd1 100644
--- a/gdb/ns32knbsd-nat.c
+++ b/gdb/ns32knbsd-nat.c
@@ -1,5 +1,6 @@
 /* Functions specific to running gdb native on an ns32k running NetBSD
-   Copyright 1989, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
+   Copyright 1989, 1992, 1993, 1994, 1996, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +29,7 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #define RF(dst, src) \
 	memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
diff --git a/gdb/ocd.c b/gdb/ocd.c
index 240bd672f20..42f2bba62ff 100644
--- a/gdb/ocd.c
+++ b/gdb/ocd.c
@@ -34,6 +34,7 @@
 #include <signal.h>
 #include "serial.h"
 #include "ocd.h"
+#include "regcache.h"
 
 /* Prototypes for local functions */
 
diff --git a/gdb/pa64solib.c b/gdb/pa64solib.c
index 45a575b727f..f71d1b1c247 100644
--- a/gdb/pa64solib.c
+++ b/gdb/pa64solib.c
@@ -1,5 +1,5 @@
 /* Handle HP ELF shared libraries for GDB, the GNU Debugger.
-   Copyright 1999 Free Software Foundation, Inc.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -49,6 +49,7 @@
 #include "gdbcmd.h"
 #include "assert.h"
 #include "language.h"
+#include "regcache.h"
 
 #include <fcntl.h>
 
diff --git a/gdb/ppc-bdm.c b/gdb/ppc-bdm.c
index 0be1cfa717c..d38b420a726 100644
--- a/gdb/ppc-bdm.c
+++ b/gdb/ppc-bdm.c
@@ -35,6 +35,7 @@
 #include "serial.h"
 #include "ocd.h"
 #include "ppc-tdep.h"
+#include "regcache.h"
 
 static void bdm_ppc_open (char *name, int from_tty);
 
diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c
index d562eca6f60..66e6e831a77 100644
--- a/gdb/ppc-linux-nat.c
+++ b/gdb/ppc-linux-nat.c
@@ -1,5 +1,6 @@
 /* PPC linux native support.
-   Copyright (C) 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "frame.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/param.h>
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index 624d1d7368c..feef7c89bcb 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -1,6 +1,7 @@
 /* Target-dependent code for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
-   Free Software Foundation, Inc.
+
+   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
+   1997, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +29,7 @@
 #include "gdbcmd.h"
 #include "symfile.h"
 #include "objfiles.h"
+#include "regcache.h"
 
 #include "ppc-tdep.h"
 
diff --git a/gdb/ppcbug-rom.c b/gdb/ppcbug-rom.c
index 16a7f9dd2b2..edeacb8b09b 100644
--- a/gdb/ppcbug-rom.c
+++ b/gdb/ppcbug-rom.c
@@ -1,6 +1,6 @@
 /* Remote debugging interface for PPCbug (PowerPC) Rom monitor
    for GDB, the GNU debugger.
-   Copyright 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
 
    Written by Stu Grossman of Cygnus Support
 
@@ -26,6 +26,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void
 ppcbug_supply_register (char *regname, int regnamelen, char *val, int vallen)
diff --git a/gdb/ppcnbsd-nat.c b/gdb/ppcnbsd-nat.c
index 044115b24f0..49550bba64a 100644
--- a/gdb/ppcnbsd-nat.c
+++ b/gdb/ppcnbsd-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for PowerPC's running NetBSD, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001 Free
+   Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,6 +28,7 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "ppc-tdep.h"
+#include "regcache.h"
 
 #define RF(dst, src) \
         memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
diff --git a/gdb/ptx4-nat.c b/gdb/ptx4-nat.c
index af313c06134..66ed8a732b7 100644
--- a/gdb/ptx4-nat.c
+++ b/gdb/ptx4-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for ptx 4.0
-   Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 #include <sys/procfs.h>
 #include <sys/ptrace.h>
 #include <sys/param.h>
diff --git a/gdb/regcache.c b/gdb/regcache.c
index 953892c73f8..49ce169ca24 100644
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -25,6 +25,7 @@
 #include "target.h"
 #include "gdbarch.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 /*
  * DATA STRUCTURE
@@ -554,6 +555,14 @@ supply_register (int regnum, char *val)
 /* read_pc, write_pc, read_sp, write_sp, read_fp, write_fp, etc.
    Special handling for registers PC, SP, and FP.  */
 
+/* NOTE: cagney/2001-02-18: The functions generic_target_read_pc(),
+   read_pc_pid(), read_pc(), generic_target_write_pc(),
+   write_pc_pid(), write_pc(), generic_target_read_sp(), read_sp(),
+   generic_target_write_sp(), write_sp(), generic_target_read_fp(),
+   read_fp(), generic_target_write_fp(), write_fp will eventually be
+   moved out of the reg-cache into either frame.[hc] or to the
+   multi-arch framework.  The are not part of the raw register cache.  */
+
 /* This routine is getting awfully cluttered with #if's.  It's probably
    time to turn this into READ_PC and define it in the tm.h file.
    Ditto for write_pc.
diff --git a/gdb/regcache.h b/gdb/regcache.h
new file mode 100644
index 00000000000..682156aa612
--- /dev/null
+++ b/gdb/regcache.h
@@ -0,0 +1,71 @@
+/* Cache and manage the values of registers for GDB, the GNU debugger.
+   Copyright 1986, 87, 89, 91, 94, 95, 96, 1998, 2000, 2001
+   Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef REGCACHE_H
+#define REGCACHE_H
+
+/* Character array containing an image of the inferior programs'
+   registers. */
+
+extern char *registers;
+
+/* Character array containing the current state of each register
+   (unavailable<0, valid=0, invalid>0). */
+
+extern signed char *register_valid;
+
+extern int register_cached (int regnum);
+
+extern void set_register_cached (int regnum, int state);
+
+extern void register_changed (int regnum);
+
+extern char *register_buffer (int regnum);
+
+extern void registers_changed (void);
+
+extern void registers_fetched (void);
+
+extern void read_register_bytes (int regbyte, char *myaddr, int len);
+
+extern void read_register_gen (int regnum, char *myaddr);
+
+extern void write_register_gen (int regnum, char *myaddr);
+
+extern void write_register_bytes (int regbyte, char *myaddr, int len);
+
+/* Rename to read_unsigned_register()? */
+extern ULONGEST read_register (int regnum);
+
+/* Rename to read_unsigned_register_pid()? */
+extern ULONGEST read_register_pid (int regnum, int pid);
+
+extern LONGEST read_signed_register (int regnum);
+
+extern LONGEST read_signed_register_pid (int regnum, int pid);
+
+extern void write_register (int regnum, LONGEST val);
+
+extern void write_register_pid (int regnum, CORE_ADDR val, int pid);
+
+extern void supply_register (int regnum, char *val);
+
+#endif /* REGCACHE_H */
diff --git a/gdb/remote-adapt.c b/gdb/remote-adapt.c
index 9ca6167ce02..9c69a07ab45 100644
--- a/gdb/remote-adapt.c
+++ b/gdb/remote-adapt.c
@@ -43,6 +43,7 @@
 #include "terminal.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 /* This processor is getting rusty but I am trying to keep it
    up to date at least with data structure changes.
diff --git a/gdb/remote-array.c b/gdb/remote-array.c
index 7cb63765474..6ffd30fe500 100644
--- a/gdb/remote-array.c
+++ b/gdb/remote-array.c
@@ -37,6 +37,7 @@
 #include "remote-utils.h"
 #include "inferior.h"
 #include "version.h"
+#include "regcache.h"
 
 extern int baud_rate;
 
diff --git a/gdb/remote-bug.c b/gdb/remote-bug.c
index e381ae915cc..8d0f80265d2 100644
--- a/gdb/remote-bug.c
+++ b/gdb/remote-bug.c
@@ -24,6 +24,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdb_string.h"
+#include "regcache.h"
 #include <ctype.h>
 #include <fcntl.h>
 #include <setjmp.h>
diff --git a/gdb/remote-e7000.c b/gdb/remote-e7000.c
index 904ce1f4e54..323ee0db976 100644
--- a/gdb/remote-e7000.c
+++ b/gdb/remote-e7000.c
@@ -45,6 +45,7 @@
 #include "serial.h"
 #include "remote-utils.h"
 #include "symfile.h"
+#include "regcache.h"
 #include <time.h>
 #include <ctype.h>
 
diff --git a/gdb/remote-eb.c b/gdb/remote-eb.c
index 7246c909ee4..bcbc230d25b 100644
--- a/gdb/remote-eb.c
+++ b/gdb/remote-eb.c
@@ -28,6 +28,7 @@
 
 #include "defs.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 #include "inferior.h"
 #include "bfd.h"
diff --git a/gdb/remote-es.c b/gdb/remote-es.c
index 764af505ee1..74fbfb19332 100644
--- a/gdb/remote-es.c
+++ b/gdb/remote-es.c
@@ -109,6 +109,7 @@
 #include "remote-utils.h"
 #include "gdbcore.h"
 #include "serial.h"
+#include "regcache.h"
 
 /* Prototypes for local functions */
 
diff --git a/gdb/remote-est.c b/gdb/remote-est.c
index 23d55412133..4a6274f6af9 100644
--- a/gdb/remote-est.c
+++ b/gdb/remote-est.c
@@ -1,5 +1,5 @@
 /* Remote debugging interface for EST-300 ICE, for GDB
-   Copyright 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
    Contributed by Cygnus Support.
 
    Written by Steve Chamberlain for Cygnus Support.
@@ -27,6 +27,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void est_open (char *args, int from_tty);
 
diff --git a/gdb/remote-hms.c b/gdb/remote-hms.c
index 834f5963dc0..0b402faf63c 100644
--- a/gdb/remote-hms.c
+++ b/gdb/remote-hms.c
@@ -1,5 +1,5 @@
 /* Remote debugging interface for Hitachi HMS Monitor Version 1.0
-   Copyright 1995,1999 Free Software Foundation, Inc.
+   Copyright 1995, 1999, 2001 Free Software Foundation, Inc.
    Contributed by Cygnus Support.  Written by Steve Chamberlain
    (sac@cygnus.com).
 
@@ -25,6 +25,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void hms_open (char *args, int from_tty);
 static void
diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c
index 1dd0fcfb39e..b4d7ad0d658 100644
--- a/gdb/remote-mips.c
+++ b/gdb/remote-mips.c
@@ -30,6 +30,7 @@
 #include "target.h"
 #include "remote-utils.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/gdb/remote-mm.c b/gdb/remote-mm.c
index f4680317cdb..938f0e8c048 100644
--- a/gdb/remote-mm.c
+++ b/gdb/remote-mm.c
@@ -41,6 +41,7 @@
 #include "terminal.h"
 #include "minimon.h"
 #include "target.h"
+#include "regcache.h"
 
 /* Offset of member MEMBER in a struct of type TYPE.  */
 #define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER)
diff --git a/gdb/remote-nindy.c b/gdb/remote-nindy.c
index 7902e0bcdf2..32fd69560e7 100644
--- a/gdb/remote-nindy.c
+++ b/gdb/remote-nindy.c
@@ -108,6 +108,7 @@
 #include "gdbcore.h"
 #include "command.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include <sys/file.h>
 #include <ctype.h>
diff --git a/gdb/remote-os9k.c b/gdb/remote-os9k.c
index 16b90569560..e9d62103d51 100644
--- a/gdb/remote-os9k.c
+++ b/gdb/remote-os9k.c
@@ -50,6 +50,7 @@
 #include "symfile.h"
 #include "objfiles.h"
 #include "gdb-stabs.h"
+#include "regcache.h"
 
 struct cmd_list_element *showlist;
 extern struct target_ops rombug_ops;	/* Forward declaration */
diff --git a/gdb/remote-rdi.c b/gdb/remote-rdi.c
index d97cb65c2c9..4d208e57316 100644
--- a/gdb/remote-rdi.c
+++ b/gdb/remote-rdi.c
@@ -33,6 +33,7 @@
 #include "gdbcore.h"
 #include "breakpoint.h"
 #include "completer.h"
+#include "regcache.h"
 
 #ifdef USG
 #include <sys/types.h>
diff --git a/gdb/remote-rdp.c b/gdb/remote-rdp.c
index 470a82b0276..db8f6f76541 100644
--- a/gdb/remote-rdp.c
+++ b/gdb/remote-rdp.c
@@ -47,6 +47,7 @@
 #include "remote-utils.h"
 #include "gdb_string.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #ifdef HAVE_TIME_H
 #include <time.h>
diff --git a/gdb/remote-sds.c b/gdb/remote-sds.c
index f7c364a21d0..08f16e7863e 100644
--- a/gdb/remote-sds.c
+++ b/gdb/remote-sds.c
@@ -36,6 +36,7 @@
 #include "gdb-stabs.h"
 #include "gdbthread.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #ifdef USG
 #include <sys/types.h>
diff --git a/gdb/remote-sim.c b/gdb/remote-sim.c
index 81baf52b834..cd746b96b7b 100644
--- a/gdb/remote-sim.c
+++ b/gdb/remote-sim.c
@@ -36,6 +36,7 @@
 #include "remote-sim.h"
 #include "remote-utils.h"
 #include "command.h"
+#include "regcache.h"
 
 /* Prototypes */
 
diff --git a/gdb/remote-st.c b/gdb/remote-st.c
index d688770ffb9..049eaec6442 100644
--- a/gdb/remote-st.c
+++ b/gdb/remote-st.c
@@ -41,6 +41,7 @@
 #include "gdb_string.h"
 #include <sys/types.h>
 #include "serial.h"
+#include "regcache.h"
 
 extern struct target_ops st2000_ops;	/* Forward declaration */
 
diff --git a/gdb/remote-udi.c b/gdb/remote-udi.c
index a741ef76a86..14a7345715f 100644
--- a/gdb/remote-udi.c
+++ b/gdb/remote-udi.c
@@ -46,6 +46,7 @@
 #include "gdbcmd.h"
 #include "bfd.h"
 #include "gdbcore.h"		/* For download function */
+#include "regcache.h"
 
 /* access the register store directly, without going through
    the normal handler functions. This avoids an extra data copy.  */
diff --git a/gdb/remote-utils.c b/gdb/remote-utils.c
index e723a5612e1..9efa90095b1 100644
--- a/gdb/remote-utils.c
+++ b/gdb/remote-utils.c
@@ -1,6 +1,6 @@
 /* Generic support for remote debugging interfaces.
 
-   Copyright 1993, 1994, 1998 Free Software Foundation, Inc.
+   Copyright 1993, 1994, 1998, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -50,6 +50,7 @@
 #include "gdbcore.h"		/* for exec_bfd */
 #include "inferior.h"		/* for generic_mourn_inferior */
 #include "remote-utils.h"
+#include "regcache.h"
 
 
 void _initialize_sr_support (void);
diff --git a/gdb/remote-vx.c b/gdb/remote-vx.c
index f49fa7217db..49bd19fd886 100644
--- a/gdb/remote-vx.c
+++ b/gdb/remote-vx.c
@@ -32,6 +32,7 @@
 #include "symfile.h"
 #include "objfiles.h"
 #include "gdb-stabs.h"
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote-vx29k.c b/gdb/remote-vx29k.c
index 1d5230c689b..798cd088396 100644
--- a/gdb/remote-vx29k.c
+++ b/gdb/remote-vx29k.c
@@ -30,6 +30,7 @@
 #include "command.h"
 #include "symtab.h"
 #include "symfile.h"		/* for struct complaint */
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote-vx68.c b/gdb/remote-vx68.c
index 8dd97f2a165..2ebaa633f77 100644
--- a/gdb/remote-vx68.c
+++ b/gdb/remote-vx68.c
@@ -31,6 +31,7 @@
 #include "command.h"
 #include "symtab.h"
 #include "symfile.h"		/* for struct complaint */
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote-vx960.c b/gdb/remote-vx960.c
index 4a2af5c55f2..08568bc4ca6 100644
--- a/gdb/remote-vx960.c
+++ b/gdb/remote-vx960.c
@@ -31,6 +31,7 @@
 #include "command.h"
 #include "symtab.h"
 #include "symfile.h"		/* for struct complaint */
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote-vxmips.c b/gdb/remote-vxmips.c
index a06edaf0bce..8be4a2f9464 100644
--- a/gdb/remote-vxmips.c
+++ b/gdb/remote-vxmips.c
@@ -31,6 +31,7 @@
 #include "command.h"
 #include "symtab.h"
 #include "symfile.h"		/* for struct complaint */
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote-vxsparc.c b/gdb/remote-vxsparc.c
index b9a1a250a0b..014f1d457ef 100644
--- a/gdb/remote-vxsparc.c
+++ b/gdb/remote-vxsparc.c
@@ -31,6 +31,7 @@
 #include "command.h"
 #include "symtab.h"
 #include "symfile.h"		/* for struct complaint */
+#include "regcache.h"
 
 #include "gdb_string.h"
 #include <errno.h>
diff --git a/gdb/remote.c b/gdb/remote.c
index c80fa092294..5e8db0edafd 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -35,6 +35,7 @@
 #include "gdb-stabs.h"
 #include "gdbthread.h"
 #include "remote.h"
+#include "regcache.h"
 
 #include <ctype.h>
 #include <sys/time.h>
diff --git a/gdb/rom68k-rom.c b/gdb/rom68k-rom.c
index 5bb3a183c23..e6b8b50b4c5 100644
--- a/gdb/rom68k-rom.c
+++ b/gdb/rom68k-rom.c
@@ -1,5 +1,6 @@
 /* Remote target glue for the ROM68K ROM monitor.
-   Copyright 1988, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+   Copyright 1988, 1991, 1992, 1993, 1994, 1995, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -23,6 +24,7 @@
 #include "target.h"
 #include "monitor.h"
 #include "serial.h"
+#include "regcache.h"
 
 static void rom68k_open (char *args, int from_tty);
 
diff --git a/gdb/rs6000-nat.c b/gdb/rs6000-nat.c
index 18541350342..dc6676d4141 100644
--- a/gdb/rs6000-nat.c
+++ b/gdb/rs6000-nat.c
@@ -30,6 +30,7 @@
 #include "libbfd.h"		/* For bfd_cache_lookup (FIXME) */
 #include "bfd.h"
 #include "gdb-stabs.h"
+#include "regcache.h"
 
 #include <sys/ptrace.h>
 #include <sys/reg.h>
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 94d09a62c00..c209e9e50d0 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -30,6 +30,7 @@
 #include "symfile.h"
 #include "objfiles.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 #include "bfd/libbfd.h"		/* for bfd_default_set_arch_mach */
 #include "coff/internal.h"	/* for libcoff.h */
diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 032bfe92c15..f24a2bff95b 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -38,6 +38,7 @@
 #include "gdb_string.h"
 #include "arch-utils.h"
 #include "floatformat.h"
+#include "regcache.h"
 
 #include "solib-svr4.h"
 
diff --git a/gdb/sh3-rom.c b/gdb/sh3-rom.c
index a470488c242..989e0fb78ac 100644
--- a/gdb/sh3-rom.c
+++ b/gdb/sh3-rom.c
@@ -25,6 +25,7 @@
 #include "serial.h"
 #include "srec.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 static serial_t parallel;
 static int parallel_in_use;
diff --git a/gdb/sol-thread.c b/gdb/sol-thread.c
index f266902f78e..eea3bfaac2d 100644
--- a/gdb/sol-thread.c
+++ b/gdb/sol-thread.c
@@ -1,5 +1,6 @@
 /* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
-   Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+   Copyright 1996, 1997, 1998, 2000, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -58,6 +59,7 @@
 #include <dlfcn.h>
 #include "gdbcmd.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 extern struct target_ops sol_thread_ops;	/* Forward declaration */
 extern struct target_ops sol_core_ops;	/* Forward declaration */
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 1c451f39f42..8ef307f3f7b 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -21,6 +21,7 @@
 
 #define _SYSCALL32	/* for Sparc64 cross Sparc32 */
 #include "defs.h"
+#include "regcache.h"
 
 
 #include <sys/types.h>
diff --git a/gdb/somsolib.c b/gdb/somsolib.c
index 8bb3e79e950..2887fbbac05 100644
--- a/gdb/somsolib.c
+++ b/gdb/somsolib.c
@@ -39,6 +39,7 @@
 #include "gdbcmd.h"
 #include "assert.h"
 #include "language.h"
+#include "regcache.h"
 
 #include <fcntl.h>
 
diff --git a/gdb/sparc-nat.c b/gdb/sparc-nat.c
index 143b3688258..ed47b8e42b7 100644
--- a/gdb/sparc-nat.c
+++ b/gdb/sparc-nat.c
@@ -1,5 +1,6 @@
 /* Functions specific to running gdb native on a SPARC running SunOS4.
-   Copyright 1989, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
+   Copyright 1989, 1992, 1993, 1994, 1996, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +23,8 @@
 #include "inferior.h"
 #include "target.h"
 #include "gdbcore.h"
+#include "sparc-nat.c"
+#include "regcache.h"
 
 #include <signal.h>
 #include <sys/ptrace.h>
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index e30ebb54cdc..4b1cfdc8a65 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -30,6 +30,7 @@
 #include "value.h"
 #include "bfd.h"
 #include "gdb_string.h"
+#include "regcache.h"
 
 #ifdef	USE_PROC_FS
 #include <sys/procfs.h>
diff --git a/gdb/sparcl-tdep.c b/gdb/sparcl-tdep.c
index 59f710cc883..635eafe4794 100644
--- a/gdb/sparcl-tdep.c
+++ b/gdb/sparcl-tdep.c
@@ -23,6 +23,7 @@
 #include "breakpoint.h"
 #include "target.h"
 #include "serial.h"
+#include "regcache.h"
 #include <sys/types.h>
 
 #if (!defined(__GO32__) && !defined(_WIN32)) || defined(__CYGWIN32__)
diff --git a/gdb/sparclet-rom.c b/gdb/sparclet-rom.c
index 921c6a53f08..5dcdd3c98f5 100644
--- a/gdb/sparclet-rom.c
+++ b/gdb/sparclet-rom.c
@@ -1,5 +1,5 @@
 /* Remote target glue for the SPARC Sparclet ROM monitor.
-   Copyright 1995, 1996 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,6 +27,7 @@
 #include "srec.h"
 #include "symtab.h"
 #include "symfile.h"		/* for generic_load */
+#include "regcache.h"
 #include <time.h>
 
 extern void report_transfer_performance (unsigned long, time_t, time_t);
diff --git a/gdb/sun3-nat.c b/gdb/sun3-nat.c
index 8e27e64d60d..8891e79949a 100644
--- a/gdb/sun3-nat.c
+++ b/gdb/sun3-nat.c
@@ -1,5 +1,6 @@
 /* Host-dependent code for Sun-3 for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 1992, 2001 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/ptrace.h>
 #define KERNEL			/* To get floating point reg definitions */
diff --git a/gdb/sun386-nat.c b/gdb/sun386-nat.c
index 326084e26ba..939d3af02cd 100644
--- a/gdb/sun386-nat.c
+++ b/gdb/sun386-nat.c
@@ -1,5 +1,6 @@
 /* Native support for Sun 386i's for GDB, the GNU debugger.
-   Copyright (C) 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 1992, 2001 Free Software
+   Foundation, Inc.
    Changes for sun386i by Jean Daniel Fekete (jdf@litp.univ-p6-7.fr),
    C2V Paris, April 89.
 
@@ -24,6 +25,7 @@
 #include "frame.h"
 #include "inferior.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include <sys/param.h>
 #include <sys/dir.h>
diff --git a/gdb/symm-nat.c b/gdb/symm-nat.c
index 144c111a9cf..67541db9368 100644
--- a/gdb/symm-nat.c
+++ b/gdb/symm-nat.c
@@ -27,6 +27,7 @@
 #include "inferior.h"
 #include "symtab.h"
 #include "target.h"
+#include "regcache.h"
 
 /* FIXME: What is the _INKERNEL define for?  */
 #define _INKERNEL
diff --git a/gdb/target.c b/gdb/target.c
index ba4ddc2fce0..ec4162bc2d0 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -33,6 +33,7 @@
 #include "gdb_wait.h"
 #include "dcache.h"
 #include <signal.h>
+#include "regcache.h"
 
 extern int errno;
 
diff --git a/gdb/thread-db.c b/gdb/thread-db.c
index f425bf489e5..70283d07963 100644
--- a/gdb/thread-db.c
+++ b/gdb/thread-db.c
@@ -1,5 +1,5 @@
 /* libthread_db assisted debugging support, generic parts.
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -31,6 +31,7 @@
 #include "symfile.h"
 #include "objfiles.h"
 #include "target.h"
+#include "regcache.h"
 
 #ifndef LIBTHREAD_DB_SO
 #define LIBTHREAD_DB_SO "libthread_db.so.1"
diff --git a/gdb/thread.c b/gdb/thread.c
index eeeca495530..4282a4889aa 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -31,6 +31,7 @@
 #include "gdbthread.h"
 #include "command.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 #include <ctype.h>
 #include <sys/types.h>
diff --git a/gdb/tic80-tdep.c b/gdb/tic80-tdep.c
index 2ea2d44e7b4..f1686244604 100644
--- a/gdb/tic80-tdep.c
+++ b/gdb/tic80-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for the TI TMS320C80 (MVP) for GDB, the GNU debugger.
-   Copyright 1996, Free Software Foundation, Inc.
+   Copyright 1996, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -28,6 +28,7 @@
 #include "gdb_string.h"
 #include "gdbcore.h"
 #include "symfile.h"
+#include "regcache.h"
 
 /* Function: frame_find_saved_regs
    Return the frame_saved_regs structure for the frame.
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index a1feb18fc2e..b8598e717de 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -1,5 +1,5 @@
 /* Tracing functionality for remote targets in custom GDB protocol
-   Copyright 1997, 1998 Free Software Foundation, Inc.
+   Copyright 1997, 1998, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -33,6 +33,7 @@
 #include "remote.h"
 #include "linespec.h"
 #include "completer.h"
+#include "regcache.h"
 
 #include "ax.h"
 #include "ax-gdb.h"
diff --git a/gdb/ultra3-nat.c b/gdb/ultra3-nat.c
index 02ff8ec3ff3..f8d8f33e04c 100644
--- a/gdb/ultra3-nat.c
+++ b/gdb/ultra3-nat.c
@@ -1,5 +1,6 @@
 /* Native-dependent code for GDB, for NYU Ultra3 running Sym1 OS.
-   Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 2001 Free Software Foundation,
+   Inc.
    Contributed by David Wood (wood@nyu.edu) at New York University.
 
    This file is part of GDB.
@@ -25,6 +26,7 @@
 #include "inferior.h"
 #include "symtab.h"
 #include "value.h"
+#include "regcache.h"
 
 #include <sys/types.h>
 #include <sys/param.h>
diff --git a/gdb/umax-xdep.c b/gdb/umax-xdep.c
index 84431fe47a5..f7c5bd38faf 100644
--- a/gdb/umax-xdep.c
+++ b/gdb/umax-xdep.c
@@ -1,5 +1,6 @@
 /* umax host stuff.
-   Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 2001 Free Software Foundation,
+   Inc.
 
    This file is part of GDB.
 
@@ -21,6 +22,7 @@
 #include "defs.h"
 #include "frame.h"
 #include "inferior.h"
+#include "regcache.h"
 
 #include <sys/param.h>
 #include <sys/dir.h>
diff --git a/gdb/uw-thread.c b/gdb/uw-thread.c
index 17e98fd3d62..a3b98a4780f 100644
--- a/gdb/uw-thread.c
+++ b/gdb/uw-thread.c
@@ -1,7 +1,7 @@
 /* Low level interface for debugging UnixWare user-mode threads for
    GDB, the GNU debugger.
 
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
    Written by Nick Duffek <nsd@cygnus.com>.
 
    This file is part of GDB.
@@ -101,6 +101,7 @@
 #include "gdbthread.h"
 #include "target.h"
 #include "inferior.h"
+#include "regcache.h"
 #include <fcntl.h>
 
 /* <thread.h> includes <sys/priocntl.h>, which requires boolean_t from
diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c
index 6e107404ddc..4ada8b0316d 100644
--- a/gdb/v850-tdep.c
+++ b/gdb/v850-tdep.c
@@ -29,6 +29,7 @@
 #include "gdbcore.h"
 #include "symfile.h"
 #include "arch-utils.h"
+#include "regcache.h"
 
 
 static char *v850_generic_reg_names[] = REGISTER_NAMES;
diff --git a/gdb/v850ice.c b/gdb/v850ice.c
index 897313894c6..8f65de3d558 100644
--- a/gdb/v850ice.c
+++ b/gdb/v850ice.c
@@ -1,5 +1,5 @@
 /* ICE interface for the NEC V850 for GDB, the GNU debugger.
-   Copyright 1996, 2000 Free Software Foundation, Inc.
+   Copyright 1996, 2000, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -30,6 +30,7 @@
 #include "gdbcore.h"
 #include "value.h"
 #include "command.h"
+#include "regcache.h"
 
 #include <tcl.h>
 #include <windows.h>
diff --git a/gdb/valops.c b/gdb/valops.c
index ce15c2007eb..c093d5396ac 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -1,6 +1,6 @@
 /* Perform non-arithmetic operations on values, for GDB.
-   Copyright 1986, 87, 89, 91, 92, 93, 94, 95, 96, 97, 1998
-   Free Software Foundation, Inc.
+   Copyright 1986, 87, 89, 91, 92, 93, 94, 95, 96, 97, 1998, 2001 Free
+   Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -30,6 +30,7 @@
 #include "demangle.h"
 #include "language.h"
 #include "gdbcmd.h"
+#include "regcache.h"
 
 #include <errno.h>
 #include "gdb_string.h"
diff --git a/gdb/value.h b/gdb/value.h
index c586e82e990..d83e0c8bcdc 100644
--- a/gdb/value.h
+++ b/gdb/value.h
@@ -465,40 +465,6 @@ extern void release_value (value_ptr val);
 
 extern int record_latest_value (value_ptr val);
 
-extern void registers_changed (void);
-
-extern void read_register_bytes (int regbyte, char *myaddr, int len);
-
-extern void write_register_bytes (int regbyte, char *myaddr, int len);
-
-extern void read_register_gen (int regnum, char *myaddr);
-
-extern void write_register_gen (int regnum, char *myaddr);
-
-/* Rename to read_unsigned_register()? */
-extern ULONGEST read_register (int regnum);
-
-extern LONGEST read_signed_register (int regnum);
-
-/* Rename to read_unsigned_register_pid()? */
-extern ULONGEST read_register_pid (int regnum, int pid);
-
-extern LONGEST read_signed_register_pid (int regnum, int pid);
-
-extern void write_register (int regnum, LONGEST val);
-
-extern void write_register_pid (int regnum, CORE_ADDR val, int pid);
-
-extern void supply_register (int regnum, char *val);
-
-extern int register_cached (int regnum);
-
-extern void set_register_cached (int regnum, int state);
-
-extern void register_changed (int regnum);
-
-extern char *register_buffer (int regnum);
-
 extern void
 modify_field (char *addr, LONGEST fieldval, int bitpos, int bitsize);
 
diff --git a/gdb/w65-tdep.c b/gdb/w65-tdep.c
index 3f76cf5de66..bf7146740a8 100644
--- a/gdb/w65-tdep.c
+++ b/gdb/w65-tdep.c
@@ -1,5 +1,5 @@
 /* Target-machine dependent code for WDC-65816, for GDB.
-   Copyright (C) 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -31,6 +31,7 @@
 #include "gdbtypes.h"
 #include "dis-asm.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 /* Return the saved PC from this frame. */
 
diff --git a/gdb/w89k-rom.c b/gdb/w89k-rom.c
index e33a3c5ff1f..0829815ba90 100644
--- a/gdb/w89k-rom.c
+++ b/gdb/w89k-rom.c
@@ -1,7 +1,7 @@
 /* Remote target glue for the WinBond ROM monitor running on the "Cougar"
    W89k eval board.
 
-   Copyright 1995 Free Software Foundation, Inc.
+   Copyright 1995, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +26,7 @@
 #include "monitor.h"
 #include "serial.h"
 #include "xmodem.h"
+#include "regcache.h"
 
 
 static void w89k_open (char *args, int from_tty);
diff --git a/gdb/win32-nat.c b/gdb/win32-nat.c
index 71e10e952bf..67d1728ba89 100644
--- a/gdb/win32-nat.c
+++ b/gdb/win32-nat.c
@@ -1,5 +1,6 @@
 /* Target-vector operations for controlling win32 child processes, for GDB.
-   Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 Free Software
+   Foundation, Inc.
    Contributed by Cygnus Solutions, A Red Hat Company.
 
    This file is part of GDB.
@@ -17,8 +18,7 @@
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.
- */
+   Boston, MA 02111-1307, USA.  */
 
 /* by Steve Chamberlain, sac@cygnus.com */
 
@@ -31,6 +31,7 @@
 #include "gdbcore.h"
 #include "command.h"
 #include "completer.h"
+#include "regcache.h"
 #include <signal.h>
 #include <sys/types.h>
 #include <fcntl.h>
diff --git a/gdb/wince.c b/gdb/wince.c
index bcbe212dab7..3b4f67cb3ee 100644
--- a/gdb/wince.c
+++ b/gdb/wince.c
@@ -55,6 +55,7 @@
 #include <sys/param.h>
 #include "wince-stub.h"
 #include <time.h>
+#include "regcache.h"
 
 /* The ui's event loop. */
 extern int (*ui_loop_hook) (int signo);
diff --git a/gdb/z8k-tdep.c b/gdb/z8k-tdep.c
index 98eb22f92e4..4b6d8e25c44 100644
--- a/gdb/z8k-tdep.c
+++ b/gdb/z8k-tdep.c
@@ -1,5 +1,5 @@
 /* Target-machine dependent code for Zilog Z8000, for GDB.
-   Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1993, 1994, 2001 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -31,6 +31,7 @@
 #include "gdbtypes.h"
 #include "dis-asm.h"
 #include "gdbcore.h"
+#include "regcache.h"
 
 #include "value.h" /* For read_register() */