Patch: JNI tests

[Tom Tromey <tromey at redhat dot com>]

I'm checking this in on the trunk.  This adds a test suite wrapper for
the JNI tests that we have.  In the future I hope to add test cases
every time a JNI bug is reported (or at least whenever it is
practical).

2001-06-14  Tom Tromey  <tromey@redhat.com>

	* libjava.jni/jni.exp: New file.
	* lib/libjava.exp (gcj_link): New proc.

Tom

Index: lib/libjava.exp
===================================================================
RCS file: /cvs/gcc/gcc/libjava/testsuite/lib/libjava.exp,v
retrieving revision 1.29
diff -u -r1.29 libjava.exp
--- libjava.exp	2001/06/08 22:12:27	1.29
+++ libjava.exp	2001/06/14 17:38:29
@@ -336,6 +336,27 @@
     return $args
 }
 
+# Link a bunch of objects into a program.  MAIN is the name of the
+# class holding `main'.  Return 0 on failure.
+proc gcj_link {program main files {options {}}} {
+    set arguments [libjava_arguments link]
+    if {[llength $options]} {
+	eval lappend arguments $options
+    }
+    lappend arguments "additional_flags=--main=$main"
+    set x [prune_warnings [libjava_tcompile $files $program executable \
+			     $arguments]]
+    if {$x != ""} {
+	verbose "link failure: $x" 2
+	fail "linking $program"
+	setup_xfail "*-*-*"
+	fail "running $program"
+	return 0
+    }
+
+    pass "linking $program"
+    return 1
+}
 
 #
 # Run the test specified by srcfile and resultfile. compile_args and
Index: libjava.jni/jni.exp
===================================================================
RCS file: jni.exp
diff -N jni.exp
--- /dev/null	Tue May  5 13:32:27 1998
+++ jni.exp	Thu Jun 14 10:38:29 2001
@@ -0,0 +1,150 @@
+# Tests for JNI code.
+
+# Compile a single C file and produce a .so file.  OPTIONS is a list
+# of options to pass to the compiler.  Returns 0 on failure, 1 on
+# success.
+proc gcj_jni_compile_c_to_so {file {options {}}} {
+  global srcdir
+
+  set name [file rootname [file tail $file]]
+  set soname lib${name}.so
+
+  lappend options "additional_flags=-shared -fPIC"
+  # Find the generated header.
+  lappend options "additional_flags=-I."
+  # Find jni.h.
+  lappend options "additional_flags=-I$srcdir/../../include"
+
+  set x [prune_warnings [target_compile $file $soname executable $options]]
+  if {$x != ""} {
+    verbose "target_compile failed: $x" 2
+    fail "$name.c compilation"
+    return 0
+  }
+
+  pass "$name.c compilation"
+  return 1
+}
+
+# Build a header file from a .class file.  Return 0 on failure.
+proc gcj_jni_build_header {file} {
+  set gcjh [find_gcjh]
+  set file [file rootname $file]
+  set options [list "compiler=$gcjh" \
+		 "additional_flags=-jni"]
+  set x [prune_warnings [target_compile $file "" none $options]]
+  if {$x != ""} {
+    verbose "target_compile failed: $x" 2
+    fail "$file header generation"
+    return 0
+  }
+
+  pass "$file header generation"
+  return 1
+}
+
+# Invoke the program and see what happens.  Return 0 on failure.
+proc gcj_invoke {program expectFile} {
+  global env
+  set lib_path $env(LD_LIBRARY_PATH)
+  setenv LD_LIBRARY_PATH .:$lib_path
+  setenv SHLIB_PATH .:$lib_path
+
+  verbose "LD_LIBRARY_PATH=$env(LD_LIBRARY_PATH)"
+
+  set result [libjava_load ./$program]
+  set status [lindex $result 0]
+  set output [lindex $result 1]
+
+  # Restore setting
+  setenv LD_LIBRARY_PATH $lib_path
+  setenv SHLIB_PATH $lib_path
+
+  if {$status != "pass"} {
+    verbose "got $output"
+    fail "$program run"
+    untested "$program output"
+    return 0
+  }
+
+  set id [open $expectFile r]
+  set expected [read $id]
+  close $id
+
+  if {! [string compare $output $expected]} {
+    pass "$program output"
+    return 1
+  } else {
+    fail "$program output"
+    return 0
+  }
+}
+
+# Do all the work for a single JNI test.  Return 0 on failure.
+proc gcj_jni_test_one {file} {
+  global runtests
+
+  # The base name.  We use it for several purposes.
+  set main [file rootname [file tail $file]]
+  if {! [runtest_file_p $runtests $main]} {
+    # Simply skip it.
+    return 1
+  }
+
+  if {! [bytecompile_file $file [pwd]]} {
+    fail "bytecompile $file"
+    # FIXME - should use `untested' on all remaining tests.
+    # But that is hard.
+    return 0
+  }
+  pass "bytecompile $file"
+
+  set bytefile [file rootname [file tail $file]].class
+  if {! [gcj_jni_build_header $bytefile]} {
+    # FIXME
+    return 0
+  }
+
+  set cfile [file rootname $file].c
+  if {! [gcj_jni_compile_c_to_so $cfile]} {
+    # FIXME
+    return 0
+  }
+
+  # We use -l$main because the .so is named the same as the main
+  # program.
+  set args [list "additional_flags=-fjni -L. -l$main"]
+  if {! [gcj_link $main $main $file $args]} {
+    # FIXME
+    return 0
+  }
+
+  if {! [gcj_invoke $main [file rootname $file].out]} {
+    # FIXME
+    return 0
+  }
+
+  # When we succeed we remove all our clutter.
+  eval gcj_cleanup [glob -nocomplain -- ${main}.*] [list $main lib${main}.so]
+
+  return 1
+}
+
+# Run the JNI tests.
+proc gcj_jni_run {} {
+  global srcdir subdir
+  global target_triplet host_triplet
+
+  # For now we only test JNI on native builds.
+  if {$target_triplet == $host_triplet} {
+    catch "glob -nocomplain ${srcdir}/${subdir}/*.java" srcfiles
+
+    foreach x $srcfiles {
+      gcj_jni_test_one $x
+    }
+  } else {
+    verbose "JNI tests not run in cross-compilation environment"
+  }
+}
+
+gcj_jni_run