[PATCH, M68K] Add regformat file for ColdFire registers

[Maxim Kuvyrkov <maxim@codesourcery.com>]

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The following patch adds regformat entry for the ColdFire registers and 
adjusts configure scripts to select between the two register formats: 
reg-m68k.dat and reg-cf.dat.

OK to apply?

Thanks,

-- 
Maxim Kuvyrkov
CodeSourcery
maxim@codesourcery.com
(650) 331-3385 x724

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2009-11-17  Nathan Sidwell  <nathan@codesourcery.com>
2009-11-17  Vladimir Prus  <vladimir@codesourcery.com>

	* Makefile.in (reg-cf.o, reg-cf.c): New targets.
	* configure.ac: Check for __mcoldfire__ and set
	gdb_cv_m68k_is_coldfire.
	* configure.srv: Use gdb_cv_m68k_is_coldfire to select between
	reg-cf.o and reg-m68k.o.
	* configure: Regenerated.

2009-11-17  Nathan Sidwell  <nathan@codesourcery.com>

	* regformats/reg-cf.dat: New file.

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 ChangeLog.regs              |   10 ++++++++++
 gdb/gdbserver/Makefile.in   |    3 +++
 gdb/gdbserver/configure     |   29 +++++++++++++++++++++++++++++
 gdb/gdbserver/configure.ac  |   12 ++++++++++++
 gdb/gdbserver/configure.srv |   12 ++++++++++--
 gdb/regformats/reg-cf.dat   |   33 +++++++++++++++++++++++++++++++++
 6 files changed, 97 insertions(+), 2 deletions(-)

diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index 155094b..cfd9d0f 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -359,6 +359,9 @@ reg-m32r.c : $(srcdir)/../regformats/reg-m32r.dat $(regdat_sh)
 reg-m68k.o : reg-m68k.c $(regdef_h)
 reg-m68k.c : $(srcdir)/../regformats/reg-m68k.dat $(regdat_sh)
 	$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-m68k.dat reg-m68k.c
+reg-cf.o : reg-cf.c $(regdef_h)
+reg-cf.c : $(srcdir)/../regformats/reg-cf.dat $(regdat_sh)
+	$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-cf.dat reg-cf.c
 mips-linux.o : mips-linux.c $(regdef_h)
 mips-linux.c : $(srcdir)/../regformats/mips-linux.dat $(regdat_sh)
 	$(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips-linux.dat mips-linux.c
diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure
index 955f716..93aeb78 100755
--- a/gdb/gdbserver/configure
+++ b/gdb/gdbserver/configure
@@ -4005,6 +4005,35 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_i386_is_x86_64" >&5
 $as_echo "$gdb_cv_i386_is_x86_64" >&6; }
     ;;
+  m68k-*-*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if building for Coldfire" >&5
+$as_echo_n "checking if building for Coldfire... " >&6; }
+if test "${gdb_cv_m68k_is_coldfire+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  save_CPPFLAGS="$CPPFLAGS"
+                    CPPFLAGS="$CPPFLAGS $CFLAGS"
+                    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef __mcoldfire__
+got it
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "got it" >/dev/null 2>&1; then :
+  gdb_cv_m68k_is_coldfire=yes
+else
+  gdb_cv_m68k_is_coldfire=no
+fi
+rm -f conftest*
+
+                    CPPFLAGS="$save_CPPFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_m68k_is_coldfire" >&5
+$as_echo "$gdb_cv_m68k_is_coldfire" >&6; }
+    ;;
 esac
 
 . ${srcdir}/configure.srv
diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac
index 57eaf21..215387d 100644
--- a/gdb/gdbserver/configure.ac
+++ b/gdb/gdbserver/configure.ac
@@ -90,6 +90,18 @@ got it
                     [gdb_cv_i386_is_x86_64=no])
                     CPPFLAGS="$save_CPPFLAGS"])
     ;;
+  m68k-*-*)
+    AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
+      	           [save_CPPFLAGS="$CPPFLAGS"
+                    CPPFLAGS="$CPPFLAGS $CFLAGS"
+                    AC_EGREP_CPP([got it], [
+#ifdef __mcoldfire__
+got it
+#endif
+                 ], [gdb_cv_m68k_is_coldfire=yes],
+                    [gdb_cv_m68k_is_coldfire=no])
+                    CPPFLAGS="$save_CPPFLAGS"])
+    ;;
 esac
 
 . ${srcdir}/configure.srv
diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
index ea746be..1814b0e 100644
--- a/gdb/gdbserver/configure.srv
+++ b/gdb/gdbserver/configure.srv
@@ -98,13 +98,21 @@ case "${target}" in
 			srv_linux_usrregs=yes
  			srv_linux_thread_db=yes
 			;;
-  m68*-*-linux*)	srv_regobj=reg-m68k.o
+  m68*-*-linux*)	if test "$gdb_cv_m68k_is_coldfire" = yes; then
+                          srv_regobj=reg-cf.o
+                        else
+                          src_regobj=reg-m68k.o
+                        fi
 			srv_tgtobj="linux-low.o linux-m68k-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
 			;;
-  m68*-*-uclinux*)	srv_regobj=reg-m68k.o
+  m68*-*-uclinux*)	if test "$gdb_cv_m68k_is_coldfire" = yes; then
+                          srv_regobj=reg-cf.o
+                        else
+                          src_regobj=reg-m68k.o
+                        fi
 			srv_tgtobj="linux-low.o linux-m68k-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
diff --git a/gdb/regformats/reg-cf.dat b/gdb/regformats/reg-cf.dat
new file mode 100644
index 0000000..068aa75
--- /dev/null
+++ b/gdb/regformats/reg-cf.dat
@@ -0,0 +1,33 @@
+name:m68k
+expedite:sp,fp,pc
+32:d0
+32:d1
+32:d2
+32:d3
+32:d4
+32:d5
+32:d6
+32:d7
+32:a0
+32:a1
+32:a2
+32:a3
+32:a4
+32:a5
+32:fp
+32:sp
+32:ps
+32:pc
+
+64:fp0
+64:fp1
+64:fp2
+64:fp3
+64:fp4
+64:fp5
+64:fp6
+64:fp7
+
+32:fpcontrol
+32:fpstatus
+32:fpiaddr