libjava.exp

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# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation

load_lib "libgloss.exp"

# GCJ_UNDER_TEST is the compiler under test.

global tmpdir

if ![info exists tmpdir] {
    set tmpdir "/tmp"
}

# This is like `prune_warnings', but it also prunes away a warning
# from the bytecode front end that we don't care about.
proc libjava_prune_warnings {text} {
    set text [prune_warnings $text]
    set tlist [split $text \n]
    set len [llength $tlist]
    for {set i [expr {$len - 1}]} {$i >= 2} {incr i -1} {
	if {[string match "*unreachable bytecode*" [lindex $tlist $i]]} {
	    # Delete this line, all other unreachable warnings and the previous
	    # two lines containing the method and class.
	    set j [expr {$i - 1}]
	    while {[string match "*unreachable bytecode*" [lindex $tlist $j]]} {
		incr j -1
	    }
	    incr j -1
	    set tlist [lreplace $tlist $j $i]
	    set i $j
	}
    }
    return [join $tlist \n]
}

# This is like `target_compile' but it does some surgery to work
# around stupid DejaGNU bugs.  In particular DejaGNU has very poor
# quoting, so for instance a `$' will be re-evaluated at spawn time.
# We don't want that.
proc libjava_tcompile {source destfile type options} {
    # This strange-looking expression really does quote the `$'.
    regsub -all -- {\$} $source {\$} source
    regsub -all -- {\$} $destfile {\$} destfile
    return [target_compile $source $destfile $type $options]
}

# Read an `xfail' file if it exists.  Returns a list of xfail tokens.
proc libjava_read_xfail {file} {
    if {! [file exists $file]} {
	return ""
    }
    set fd [open $file r]
    set tokens [string trim [read $fd]]
    close $fd
    return $tokens
}

# Find a particular executable.  FIXME: this relies on DejaGnu
# internals.  These should probably be exposed in a better way.
proc libjava_find_program {prog} {
    global tool_root_dir

    set file [lookfor_file $tool_root_dir $prog]
    if { $file == "" } {
	set file [lookfor_file $tool_root_dir gcc/$prog];
    }
    if {$file == ""} {
	set file $prog
    }
    return $file
}

# Find `jv-scan'.
proc find_jvscan {} {
    return [libjava_find_program jv-scan]
}

# Find `gcjh'.
proc find_gcjh {} {
    return [libjava_find_program gcjh]
}

proc find_javac {} {
    global SUN_JAVAC GCJ_UNDER_TEST env libgcj_jar
    # If JDK doesn't run on your platform but some other
    # JDK-compatible javac does, you may set SUN_JAVAC to point to it.
    # One of the most important properties of a SUN_JAVAC is that it
    # must create class-files even for classes that have not been
    # specified in the command line, but that were needed to compile
    # those that have.  For example, Pizza won't do it, but you can
    # use `kaffe sun.tools.javac.Main', if you have Sun's classes.zip
    # in the kaffe's default search path.
    if {![info exists SUN_JAVAC]} {
	if {[info exists env(SUN_JAVAC)]} {
	    set SUN_JAVAC $env(SUN_JAVAC)
	} else {
	    set SUN_JAVAC "$GCJ_UNDER_TEST -C -I$libgcj_jar"
	}
    }
    return $SUN_JAVAC
}

proc bytecompile_file { file objdir {classpath {}} } {
    global env
    set dirname [file dirname $file]

    set javac [find_javac]
    if {$classpath != ""} then {
        set env(CLASSPATH) $classpath
    }
    set here [pwd]
    cd $dirname
    if {[catch {
	set q [eval exec "$javac [list $file] -d $objdir 2>@ stdout"]
    } msg]} then {
	verbose "couldn't compile $file: $msg"
	set r 0
    } else {
	set r 1
    }
    cd $here
    return $r
}

set libjava_initialized 0

#
# Build the status wrapper library as needed.
#
proc libjava_init { args } {
    global wrapper_file;
    global wrap_compile_flags;
    global libjava_initialized libjava_uses_threads
    global GCJ_UNDER_TEST
    global TOOL_EXECUTABLE
    global original_ld_library_path
    global env objdir
    global env libgcj_jar
    global tool_root_dir
    global libjava_libgcc_s_path

    if { $libjava_initialized == 1 } { return; }

    if ![info exists GCJ_UNDER_TEST] {
	if [info exists TOOL_EXECUTABLE] {
	    set GCJ_UNDER_TEST $TOOL_EXECUTABLE;
	} else {
	    if [info exists env(GCJ)] {
		set GCJ_UNDER_TEST $env(GCJ)
	    } else {
		set GCJ_UNDER_TEST "[find_gcj]"
	    }
	}
    }

    # Find the libgcj jar file.
    set libgcj_jar [glob $objdir/../libgcj-*.jar]
    verbose "jar file is $libgcj_jar"

    # FIXME: This finds libgcj.spec for the default multilib.
    # If thread models differ between multilibs, this has to be moved
    # to libjava_arguments
    set specdir [libjava_find_spec]

    # The -B is so we find libgcj.spec.
    set text [eval exec "$GCJ_UNDER_TEST -B$specdir -v 2>@ stdout"]
    regexp -- "Thread model: (\[^\n\]+)\n" $text ignore model
    set libjava_uses_threads [expr {! ($model == "no"
				       || $model == "none"
				       || $model == "single")}]

    # Always set encoding used by gcj.
    append GCJ_UNDER_TEST " --encoding=UTF-8"

    if [info exists env(LD_LIBRARY_PATH)] {
	set original_ld_library_path $env(LD_LIBRARY_PATH)
    } else {
	if [info exists env(SHLIB_PATH)] {
	    set original_ld_library_path $env(SHLIB_PATH)
	} else {
	    set original_ld_library_path ""
	}
    }

    set wrapper_file "";
    set wrap_compile_flags "";
    if [target_info exists needs_status_wrapper] {
	set result [build_wrapper "testglue.o"];
	if { $result != "" } {
	    set wrapper_file [lindex $result 0];
	    set wrap_compile_flags [lindex $result 1];
	} else {
	    warning "Status wrapper failed to build."
	}
    }

    # Finally, add the gcc build directory so that we can find the
    # shared libgcc.  This, like much of dejagnu, is hideous.
    set libjava_libgcc_s_path {}
    set gccdir [lookfor_file $tool_root_dir gcc/libgcc_s.so]
    if {$gccdir != ""} {
	set gccdir [file dirname $gccdir]
	lappend libjava_libgcc_s_path $gccdir
	set compiler ${gccdir}/xgcc
	if { [is_remote host] == 0 && [which $compiler] != 0 } {
	    foreach i "[exec $compiler --print-multi-lib]" {
		set mldir ""
		regexp -- "\[a-z0-9=/\.-\]*;" $i mldir
		set mldir [string trimright $mldir "\;@"]
		if { "$mldir" == "." } {
		    continue
		}
		if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] == 1 } {
		    lappend libjava_libgcc_s_path "${gccdir}/${mldir}"
		}
	    }
	}
    }

    set libjava_initialized 1
}

# Find a library.  We know where libtool puts the actual libraries,
# and we look there.  The implementation is fairly hacky.  We can't
# compile with -nodefaultlibs, because that will also eliminate the
# system libraries we need.  In order to have gcj still work, it must
# find the appropriate libraries so we must add -L options for their
# paths.  However we can't simply use those libraries; we still need
# libtool for linking.
# Don't return the the lib${name}.la files here, since this causes the
# libraries to be linked twice: once as lib${name}.so and another time
# via gcj's implicit -l${name}.  This is both unnecessary and causes the
# Solaris ld to warn: attempted multiple inclusion of file.  This warning
# is not ignored by the dejagnu framework and cannot be disabled.
proc libjava_find_lib {dir name} {
    global base_dir
    set gp [get_multilibs]
    foreach sub {.libs _libs} {
	if {$gp != ""} {
	    if {[file exists $gp/$dir/$sub/lib${name}.a]} then {
		# Just return the `-L' option.  The library itself
		# will be picked up via the spec file.
		return "-L$gp/$dir/$sub"
	    }
	}
	# Just return the `-L' option.  The library itself will be
	# picked up via the spec file.
	set lib [findfile $base_dir/../../$dir/$sub/lib${name}.a \
		   "-L$base_dir/../../$dir/$sub" \
		   ""]
	if {$lib != ""} {
	    return $lib
	}
    }
    return ""
}

# Find libgcj.spec.  We need to use the file corresponding to the multilib
# under test since they might differ.  Append a trailing slash since this
# is used with -B.
proc libjava_find_spec {} {
    global objdir
    set gp [get_multilibs]

    if {[file exists $gp/libjava/libgcj.spec]} then {
	return "$gp/libjava/"
    }
    return "$objdir/../"
}

# Find `gij'.
proc libjava_find_gij {} {
    global base_dir
    set gp [get_multilibs]
    if {$gp != ""} {
	set file $gp/libjava/gij
    } else {
	set file $base_dir/../gij
    }

    if {[file exists $file]} {
	return $file
    }
    return gij
}

# Remove a bunch of files.
proc gcj_cleanup {args} {
    foreach file $args {
	if {[string match *.o $file]} {
	    verbose "removing [file rootname $file].lo"
	    file delete -force [file rootname $file].lo
	}
	file delete -force -- $file
	verbose "removing $file"
    }
    # It is simplest to do this instead of trying to figure out what
    # bits in .libs ought to be removed.
    catch {system "rm -rf .libs"}
}

# Compute arguments needed for compiler.  MODE is a libtool mode:
# either compile or link.
proc libjava_arguments {{mode compile}} {
    global base_dir
    global LIBJAVA
    global LIBGC
    global LIBQTHREADS
    global LIBZ
    global srcdir subdir objdir
    global TOOL_OPTIONS
    global GCJ_UNDER_TEST
    global tmpdir
    global runtests
    global env
    global tool_root_dir
    global libgcj_jar
    global libjava_libgcc_s_path

    if [info exists LIBJAVA] {
	set libjava $LIBJAVA;
    } else {
	set libjava [libjava_find_lib libjava gcj]
    }

    if [info exists LIBGC] {
	set libgc $LIBGC;
    } else {
	set libgc [libjava_find_lib boehm-gc gcjgc]
    }

    if [info exists LIBQTHREADS] {
	set libqthreads $LIBQTHREADS
    } else {
	set libqthreads [libjava_find_lib qthreads gcjcoop]
    }

    if [info exists LIBZ] {
	set libz $LIBZ
    } else {
	set libz [libjava_find_lib zlib zgcj]
    }

    # FIXME: there's no way to determine whether -lpthread is
    # required.  We should get this info from configure, or it should
    # just be in the compiler driver.

    verbose "using LIBJAVA = $libjava" 2
    verbose "using LIBGC = $libgc" 2
    verbose "using LIBQTHREADS = $libqthreads" 2
    verbose "using LIBZ = $libz" 2
    set args ""

    # Basically we want to build up a colon separated path list from
    # the value of $libjava.

    set lpath {}
    foreach dir [list $libjava $libgc $libz] {
	foreach item [split $dir " "] {
	    switch -glob -- $item {
		"-L*" {
		    lappend lpath [string range $item 2 end]
		}
	    }
	}
    }

    set lpath [concat $lpath $libjava_libgcc_s_path]
    set ld_library_path [join $lpath :]

    # That's enough to make things work for the normal case.
    # If we wanted to handle an arbitrary value of libjava,
    # then we'd have to do a lot more work.

    # Set variables the dynamic linker looks at.
    global original_ld_library_path
    setenv LD_LIBRARY_PATH "$ld_library_path:$original_ld_library_path"
    setenv SHLIB_PATH "$ld_library_path:$original_ld_library_path"

    verbose "LD_LIBRARY_PATH = $env(LD_LIBRARY_PATH)"

    # Set the CLASSPATH environment variable
    verbose "CLASSPATH is .:$srcdir/$subdir:$objdir:$libgcj_jar"
    global env
    set env(CLASSPATH) ".:$srcdir/$subdir:$objdir:$libgcj_jar"

    if {$mode == "link"} {
	global wrapper_file wrap_compile_flags;
	lappend args "additional_flags=$wrap_compile_flags";
	lappend args "libs=$wrapper_file";
	lappend args "libs=$libjava";
	lappend args "libs=$libgc";
	lappend args "libs=$libqthreads"
	lappend args "libs=$libz"
	lappend args debug
    }

    if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
	lappend args "libs=${gluefile}"
	lappend args "ldflags=$wrap_flags"
    }

    if [info exists TOOL_OPTIONS] {
	lappend args "additional_flags=$TOOL_OPTIONS"
    }

    # Determine libgcj.spec corresponding to multilib under test.
    set specdir [libjava_find_spec]

    # Search for libtool.  We need it to link.
    set found_compiler 0
    set d [absolute $objdir]
    foreach x {. .. ../.. ../../..} {
	if {[file exists $d/$x/libtool]} then {
	    # We have to run silently to avoid DejaGNU lossage.
	    lappend args \
	      "compiler=$d/$x/libtool --silent --tag=GCJ --mode=$mode $GCJ_UNDER_TEST -B$specdir"
	    set found_compiler 1
	    break
	}
    }
    if {! $found_compiler} {
	# Append -B$specdir so that we find libgcj.spec before it
	# is installed.
	lappend args "compiler=$GCJ_UNDER_TEST -B$specdir"
    }

    # Avoid libtool wrapper scripts when possible.
    # but not if libtool warnings results in FAILs
    if {$mode == "link"} {
        if {! [istarget "*-*-cygwin*"] && ! [istarget "*-*-mingw*"] } {
            lappend args "additional_flags=-no-install"
        }
    }

    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 [libjava_prune_warnings \