[rfc] [3/9] Multi-target support: Some configure.tgt cleanup

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

Hello,

this patch ensures that in the main case statement in configure.tgt,
each .mt file is referenced by exactly one case.  To achieve this,
in several instances multiple case labels refering to the same .mt
file are merged into in a single case.  On the other hand, the special
case for freebsd that matches multiple .mt files (one each for three
different targets) is expanded into multiple cases.

As additional cleanups, the obsolete build_rdi_share variable is
removed; and all remaining variables are documented in the comment
near the top of the file.

This patch is cosmetic only and should not change the behaviour
on any target.

Bye,
Ulrich


ChangeLog:

	* configure.tgt (gdb_osabi, build_gdbserver): Comment variables.
	(arm*-*-*): Do not set obsolete build_rdi_share variable.

	(*-*-freebsd* | *-*-kfreebsd*-gnu): Remove generic case, replace by ...
	(alpha*-*-freebsd* | alpha*-*-kfreebsd*-gnu)
	(i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu)
	(sparc*-*-freebsd* | sparc*-*-kfreebsd*-gnu): ... specific cases.
	(x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu): Re-sort.

	(xscale-*-*): Merge into arm*-*-* case.
	(fido-*-elf*): Merge into m68*-*-elf* case.
	(m68*-*-aout*, m68*-*-coff*, m68*-*-elf*, m68*-*-rtems*,
	m68*-*-uclinux*): Merge cases.
	(powerpc-*-linux*, powerpc64-*-linux*): Merge cases.
	(sh-*-coff*, sh-*-elf*): Merge into sh* case. 


diff -urNp gdb-orig/gdb/configure.tgt gdb-head/gdb/configure.tgt
--- gdb-orig/gdb/configure.tgt	2007-10-24 00:41:27.415656662 +0200
+++ gdb-head/gdb/configure.tgt	2007-10-24 00:34:41.748295214 +0200
@@ -4,6 +4,8 @@
 # This file sets the following shell variables:
 #  gdb_target_cpu	generic name of CPU
 #  gdb_target		name of GDB target definition to use
+#  gdb_osabi		default OS ABI to use with target
+#  build_gdbserver	set to "yes" if gdbserver supports target
 
 case $target in
  d10v-*-* | \
@@ -58,19 +60,15 @@ esac
 
 case "${target}" in
 
-x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
-	gdb_target=fbsd64
-	;;
-*-*-freebsd* | *-*-kfreebsd*-gnu)
-	gdb_target=fbsd
-	;;
-
 alpha*-*-osf*)
 	gdb_target=alpha-osf1
 	;;
 alpha*-*-linux*)
 	gdb_target=alpha-linux
 	;;
+alpha*-*-freebsd* | alpha*-*-kfreebsd*-gnu)
+	gdb_target=fbsd
+	;;
 alpha*-*-netbsd* | alpha*-*-knetbsd*-gnu)
 	gdb_target=nbsd
 	;;
@@ -100,13 +98,8 @@ arm*-*-netbsd* | arm*-*-knetbsd*-gnu)
 arm*-*-openbsd*)
 	gdb_target=obsd
 	;;
-arm*-*-* | thumb*-*-* | strongarm*-*-*)
-	gdb_target=embed
-	build_rdi_share=yes
-	;;
-xscale-*-*)
+arm*-*-* | thumb*-*-* | strongarm*-*-* | xscale-*-*)
 	gdb_target=embed
-	build_rdi_share=yes
 	;;
 
 avr-*-*)
@@ -117,10 +110,6 @@ cris*)
 	gdb_target=cris
 	;;
 
-fido-*-elf*)
-	gdb_target=monitor
-	;;
-
 frv-*-*)
 	gdb_target=frv
 	;;
@@ -142,6 +131,9 @@ hppa*-*-*)
 	gdb_target=hppa
 	;;
 
+i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu)
+	gdb_target=fbsd
+	;;
 i[34567]86-*-netbsd* | i[34567]86-*-knetbsd*-gnu)
 	gdb_target=nbsd
 	;;
@@ -204,16 +196,8 @@ m68hc11*-*-*|m6811*-*-*)
 	gdb_target=m68hc11
 	;;
 
-m68*-*-aout*)
-	gdb_target=monitor
-	;;
-m68*-*-coff*)
-	gdb_target=monitor
-	;;
-m68*-*-elf*)
-	gdb_target=monitor
-	;;
-m68*-*-rtems*)
+m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-rtems* | m68*-*-uclinux* | \
+fido-*-elf*)
 	gdb_target=monitor
 	;;
 m68*-*-linux*)
@@ -226,9 +210,6 @@ m68*-*-netbsd* | m68*-*-knetbsd*-gnu)
 m68*-*-openbsd*)
 	gdb_target=obsd
 	;;
-m68*-*-uclinux*)
-	gdb_target=monitor
-	;;
 
 m88*-*-openbsd*)
 	gdb_target=obsd
@@ -275,11 +256,7 @@ powerpc-*-openbsd*)
 powerpc-*-aix* | rs6000-*-*)
 	gdb_target=aix
 	;;
-powerpc-*-linux*)
-	gdb_target=linux
-	build_gdbserver=yes
-	;;
-powerpc64-*-linux*)
+powerpc-*-linux* | powerpc64-*-linux*)
 	gdb_target=linux
 	build_gdbserver=yes
 	;;
@@ -300,12 +277,6 @@ score-*-*)
 	gdb_target=embed
 	;;
 
-sh-*-coff*)
-	gdb_target=embed
-	;;
-sh-*-elf*)
-	gdb_target=embed
-	;;
 # FIXME should that be sh*-*-linux*, perhaps?
 sh-*-linux*)
 	gdb_target=linux
@@ -330,6 +301,9 @@ sparc-*-linux*)
 sparc64-*-linux*)
 	gdb_target=linux64
 	;;
+sparc*-*-freebsd* | sparc*-*-kfreebsd*-gnu)
+	gdb_target=fbsd
+	;;
 sparc-*-netbsd* | sparc-*-knetbsd*-gnu)
 	gdb_target=nbsd
 	;;
@@ -385,6 +359,9 @@ x86_64-*-linux*)
 	gdb_target=linux64
 	build_gdbserver=yes
 	;;
+x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
+	gdb_target=fbsd64
+	;;
 x86_64-*-netbsd* | x86_64-*-knetbsd*-gnu)
 	gdb_target=nbsd64
 	;;
-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com