Add assembly-source tests for s390-ibm-linux.

* gdb.asm/s390.inc: New file.
* gdb.asm/configure.in, gdb.asm/asm-source.exp: Add clauses for
the S/390 architecture.
* gdb.asm/configure: Regenerated.

gdb/testsuite/ChangeLog

@@ -1,3 +1,11 @@
+2001-11-30  Jim Blandy  <jimb@redhat.com>
+
+	Add assembly-source tests for s390-ibm-linux.
+	* gdb.asm/s390.inc: New file.
+	* gdb.asm/configure.in, gdb.asm/asm-source.exp: Add clauses for
+	the S/390 architecture.
+        * gdb.asm/configure: Regenerated.
+
 2001-11-26  Fernando Nasser  <fnasser@redhat.com>
 
 	From 2001-11-12 Jackie Smith Cashion  <jsmith@redhat.com>:

gdb/testsuite/gdb.asm/asm-source.exp

@@ -38,6 +38,9 @@ set link-flags ""
 if [istarget "d10v-*-*"] then {
     set asm-arch d10v
 }
+if [istarget "s390-*-*"] then {
+    set asm-arch s390
+}
 if [istarget "i\[3456\]86-*-*"] then {
     set asm-arch i386
 }

gdb/testsuite/gdb.asm/configure

@@ -28,6 +28,7 @@ program_suffix=NONE
 program_transform_name=s,x,x,
 silent=
 site=
+sitefile=
 srcdir=
 target=NONE
 verbose=
@@ -142,6 +143,7 @@ Configuration:
   --help                  print this message
   --no-create             do not create output files
   --quiet, --silent       do not print \`checking...' messages
+  --site-file=FILE        use FILE as the site file
   --version               print the version of autoconf that created configure
 Directory and file names:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -312,6 +314,11 @@ EOF
   -site=* | --site=* | --sit=*)
     site="$ac_optarg" ;;
 
+  -site-file | --site-file | --site-fil | --site-fi | --site-f)
+    ac_prev=sitefile ;;
+  -site-file=* | --site-file=* | --site-fil=* | --site-fi=* | --site-f=*)
+    sitefile="$ac_optarg" ;;
+
   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
     ac_prev=srcdir ;;
   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
@@ -477,12 +484,16 @@ fi
 srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
 
 # Prefer explicitly selected file to automatically selected ones.
-if test -z "$CONFIG_SITE"; then
+if test -z "$sitefile"; then
+  if test -z "$CONFIG_SITE"; then
     if test "x$prefix" != xNONE; then
       CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
     else
       CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
     fi
+  fi
+else
+  CONFIG_SITE="$sitefile"
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
@@ -571,7 +582,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:575: checking host system type" >&5
+echo "configure:586: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -592,7 +603,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:596: checking target system type" >&5
+echo "configure:607: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -610,7 +621,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:614: checking build system type" >&5
+echo "configure:625: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -636,6 +647,7 @@ test "$host_alias" != "$target_alias" &&
 archinc=common.inc
 case ${target} in
 d10v-*-*) archinc=d10v.inc ;;
+s390-*-*) archinc=s390.inc ;;
 i[3456]86*) archinc=i386.inc ;;
 m32r*-*) archinc=m32r.inc ;;
 sparc-*-*) archinc=sparc.inc ;;

gdb/testsuite/gdb.asm/configure.in

@@ -16,6 +16,7 @@ dnl In default case we need to link with some file so use common.inc.
 archinc=common.inc
 case ${target} in
 d10v-*-*) archinc=d10v.inc ;;
+s390-*-*) archinc=s390.inc ;;
 i[[3456]]86*) archinc=i386.inc ;;
 m32r*-*) archinc=m32r.inc ;;
 sparc-*-*) archinc=sparc.inc ;;

gdb/testsuite/gdb.asm/s390.inc

@@ -0,0 +1,68 @@
+### entry point code
+        .macro gdbasm_startup
+
+        # Align the stack pointer to an 8-byte boundary.
+        lhi %r0,-8
+        nr %r15,%r0
+
+        # Reserve space for the standard stack frame:
+        # back chain, and space for the callee to save its registers.
+        ahi %r15,-104
+        
+        # Zero this frame's back chain pointer.
+        xc 0(4,%r15),0(%r15)
+        .endm
+
+
+### Call a function.
+        .macro gdbasm_call subr
+
+        # Put the address of the constant in %r1, load the constant
+        # (SUBR's address), and jump to it.
+        bras %r1, .Lafterconst\@
+        .long \subr
+.Lafterconst\@:
+        l %r1,0(%r1)
+        basr %r14,%r1
+        .endm
+
+
+### Exit with a zero status.
+        .macro gdbasm_exit0
+        lhi %r2, 0
+        svc 1
+        .endm
+
+### Standard subroutine prologue.
+        .macro gdbasm_enter
+
+        # Save all the callee-saves registers.  What the heck.
+        stm %r6,%r15,24(%r15)
+
+        # Allocate the stack frame, and write the back chain pointer.
+        # Keep the original SP in %r11.
+        lr %r1,%r15
+        ahi %r15,-96
+        st %r1,0(%r15)
+        .endm
+
+
+### Standard subroutine epilogue.
+        .macro gdbasm_leave
+
+        # Restore all our registers.  This also pops the frame, and
+	# restores our return address.
+        lm %r6,%r15,120(%r15)
+
+        # Jump to the return address.
+        br %r14
+
+        .endm
+
+### Several nops.
+        .macro gdbasm_several_nops
+        lr %r0, %r0
+        lr %r0, %r0
+        lr %r0, %r0
+        lr %r0, %r0
+        .endm