sim: unify target->subdir handling for default tests

The testsuite subdir has a note about unifying the target->subdir logic,
so do just that.  The end goal here is to have `make check` work out of
the box without having to delve into dejagnu internals.

The target-specific logic is split out of the top level configure.ac file
and into a dedicated configure.tgt similar to other subprojects (gdb and
ld and etc...) with the difference that this file has to be included at
the m4 level instead of the shell level.  This is necessary only because
autoconf requires AC_CONFIG_SUBDIRS be given a string literal and not a
variable value.

Then the toplevel and the testsuite configure files pull this in, the sim
subdir gets expanded into testsuite/site.exp, and the default sim run code
uses this info to set the sim path to the local compiled run file if it
hasn't already been specified.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

7 files changed, 134 insertions, 17 deletions

diff --git a/sim/testsuite/ChangeLog b/sim/testsuite/ChangeLog
index 5142221b3e3..dac320f33b2 100644
--- a/sim/testsuite/ChangeLog
+++ b/sim/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2010-04-26  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (arch): Set to @sim_arch@.
+	* configure.ac: Delete arch logic and include ../configure.tgt.
+	* configure: Regenerated.
+	* lib/sim-defs.exp (sim_run): Default sim to ../arch/run.
+
 2009-08-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* configure: Regenerate.
diff --git a/sim/testsuite/Makefile.in b/sim/testsuite/Makefile.in
index 6a60f959ee6..bfb721dfd30 100644
--- a/sim/testsuite/Makefile.in
+++ b/sim/testsuite/Makefile.in
@@ -30,7 +30,7 @@ target_canonical = @target@
 target_alias = @target_alias@
 program_transform_name = @program_transform_name@
 
-arch = @arch@
+arch = @sim_arch@
 
 SHELL = /bin/sh
 SUBDIRS = @subdirs@
diff --git a/sim/testsuite/configure b/sim/testsuite/configure
index 03db937f983..da7967ec2d7 100755
--- a/sim/testsuite/configure
+++ b/sim/testsuite/configure
@@ -554,7 +554,7 @@ ac_unique_file="common/bits-tst.c"
 enable_option_checking=no
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
-arch
+sim_arch
 subdirs
 target_os
 target_vendor
@@ -1808,14 +1808,118 @@ subdirs="$subdirs frv-elf"
 	;;
 esac
 
-# Compute the target architecture.
-# FIXME: Will need to canonicalize some values.
-# FIXME: Should be in generally accessable place.
-case $target in
-  *) arch=${target_cpu} ;;
+
+# WHEN ADDING ENTRIES TO THIS MATRIX:
+
+# Make sure that the left side always has two dashes.  Otherwise you
+# can get spurious matches.  Even for unambiguous cases, do this as a
+# convention, else the table becomes a real mess to understand and
+# maintain.
+
+
+
+sim_testsuite=no
+sim_common=yes
+sim_igen=no
+sim_arch=
+case "${target}" in
+   arm*-*-* | thumb*-*-* | strongarm*-*-* | xscale-*-*)
+       sim_arch=arm
+       sim_testsuite=yes
+       ;;
+   avr*-*-*)
+       sim_arch=avr
+       ;;
+   cr16*-*-*)
+       sim_arch=cr16
+       sim_testsuite=yes
+       ;;
+   cris-*-* | crisv32-*-*)
+       sim_arch=cris
+       sim_testsuite=yes
+       ;;
+   d10v-*-*)
+       sim_arch=d10v
+       ;;
+   frv-*-*)
+       sim_arch=frv
+       sim_testsuite=yes
+       ;;
+   h8300*-*-*)
+       sim_arch=h8300
+       sim_testsuite=yes
+       ;;
+   iq2000-*-*)
+       sim_arch=iq2000
+       sim_testsuite=yes
+       ;;
+   lm32-*-*)
+       sim_arch=lm32
+       sim_testsuite=yes
+       ;;
+   m32c-*-*)
+       sim_arch=m32c
+       ;;
+   m32r-*-*)
+       sim_arch=m32r
+       sim_testsuite=yes
+       ;;
+   m68hc11-*-*|m6811-*-*)
+       sim_arch=m68hc11
+       sim_testsuite=yes
+       ;;
+   mcore-*-*)
+       sim_arch=mcore
+       sim_testsuite=yes
+       ;;
+   microblaze-*-*)
+       sim_arch=microblaze
+       sim_testsuite=yes
+       ;;
+   mips*-*-*)
+       sim_arch=mips
+       sim_testsuite=yes
+       sim_igen=yes
+       ;;
+   mn10300*-*-*)
+       sim_arch=mn10300
+       sim_igen=yes
+       ;;
+   moxie-*-*)
+       sim_arch=moxie
+       sim_testsuite=yes
+       ;;
+   rx-*-*)
+       sim_arch=rx
+       ;;
+   sh64*-*-*)
+       sim_arch=sh64
+       sim_testsuite=yes
+       ;;
+   sh*-*-*)
+       sim_arch=sh
+       sim_testsuite=yes
+       ;;
+   sparc-*-rtems*|sparc-*-elf*)
+       sim_arch=erc32
+       sim_testsuite=yes
+       ;;
+   powerpc*-*-*)
+       sim_arch=ppc
+       ;;
+   v850*-*-*)
+       sim_arch=v850
+       sim_igen=yes
+       sim_testsuite=yes
+       ;;
+   *)
+       # No simulator subdir, so the subdir "common" isn't needed.
+       sim_common=no
+       ;;
 esac
 
 
+
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
diff --git a/sim/testsuite/configure.ac b/sim/testsuite/configure.ac
index ceaf4ff5660..ba17a3362ae 100644
--- a/sim/testsuite/configure.ac
+++ b/sim/testsuite/configure.ac
@@ -25,12 +25,6 @@ case ${target} in
 	;;
 esac
 
-# Compute the target architecture.
-# FIXME: Will need to canonicalize some values.
-# FIXME: Should be in generally accessable place.
-case $target in
-  *) arch=${target_cpu} ;;
-esac
-AC_SUBST(arch)
+sinclude(../configure.tgt)
 
 AC_OUTPUT(Makefile)
diff --git a/sim/testsuite/lib/sim-defs.exp b/sim/testsuite/lib/sim-defs.exp
index 3cef3942321..1e65817a7c2 100644
--- a/sim/testsuite/lib/sim-defs.exp
+++ b/sim/testsuite/lib/sim-defs.exp
@@ -88,6 +88,15 @@ proc sim_run { prog sim_opts prog_opts redir options } {
     verbose "testcase timeout is set to $testcase_timeout" 1
 
     set sim [board_info target sim]
+    if [string equal "" $sim] {
+	# Special case the simulator.  These tests are designed to
+	# be run inside of the simulator, not on the native host.
+	# So if the sim target isn't set, default to the target run.
+	# These global variables come from generated site.exp.
+	global objdir
+	global arch
+	set sim "$objdir/../$arch/run"
+    }
 
     if [is_remote host] {
 	set prog [remote_download host $prog]
diff --git a/sim/testsuite/sim/mips/ChangeLog b/sim/testsuite/sim/mips/ChangeLog
index 4bb18b174e6..99a3121bf08 100644
--- a/sim/testsuite/sim/mips/ChangeLog
+++ b/sim/testsuite/sim/mips/ChangeLog
@@ -1,3 +1,7 @@
+2010-04-26  Mike Frysinger  <vapier@gentoo.org>
+
+	* basic.exp: Delete sim target check.
+
 2007-08-27  Joel Brobecker  <brobecker@adacore.com>
 
 	* testutils.inc: Change license to GPL version 3.
diff --git a/sim/testsuite/sim/mips/basic.exp b/sim/testsuite/sim/mips/basic.exp
index 14181c7ef67..15caecc0295 100644
--- a/sim/testsuite/sim/mips/basic.exp
+++ b/sim/testsuite/sim/mips/basic.exp
@@ -32,9 +32,8 @@ proc run_hilo_test {testfile models nops} {
 }
 
 
-# Only test mips*-*-elf (e.g., no mips*-*-linux), and only test if the target
-# board really is a simulator (sim tests don't work on real HW).
-if {[istarget mips*-*-elf] && [board_info target exists is_simulator]} {
+# Only test mips*-*-elf (e.g., no mips*-*-linux)
+if {[istarget mips*-*-elf]} {
 
     set dspmodels ""
     set mdmxmodels ""