* config/default.exp (AS, GASP, OBJDUMP, NM, NMFLAGS, OBJCOPY,

	OBJCOPYFLAGS, READELF, READELFFLAGS, LD, LDFLAGS): Provide
	default.

	* lib/ld-lib.exp (run_dump_test): Import from gas testsuite.  Add
	new options "ld", "source", "xfail", "target", "notarget" and
	"error".  Support the runtest_file_p "*.exp=testname" feature.
	(slurp_options, regexp_diff, file_contents, verbose_eval): Import
	from gas testsuite.

1 files changed, 491 insertions, 0 deletions

diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp
index 4935215..bd8d211 100644
--- a/ld/testsuite/lib/ld-lib.exp
+++ b/ld/testsuite/lib/ld-lib.exp
@@ -393,6 +393,497 @@ proc simple_diff { file_1 file_2 } {
     }
 }
 
+# run_dump_test FILE 
+# Copied from gas testsuite, tweaked and further extended.
+#
+# Assemble a .s file, then run some utility on it and check the output.
+# 
+# There should be an assembly language file named FILE.s in the test
+# suite directory, and a pattern file called FILE.d.  `run_dump_test'
+# will assemble FILE.s, run some tool like `objdump', `objcopy', or
+# `nm' on the .o file to produce textual output, and then analyze that
+# with regexps.  The FILE.d file specifies what program to run, and
+# what to expect in its output.
+#
+# The FILE.d file begins with zero or more option lines, which specify
+# flags to pass to the assembler, the program to run to dump the
+# assembler's output, and the options it wants.  The option lines have
+# the syntax:
+# 
+#         # OPTION: VALUE
+# 
+# OPTION is the name of some option, like "name" or "objdump", and
+# VALUE is OPTION's value.  The valid options are described below.
+# Whitespace is ignored everywhere, except within VALUE.  The option
+# list ends with the first line that doesn't match the above syntax
+# (hmm, not great for error detection).
+#
+# The interesting options are:
+# 
+#   name: TEST-NAME
+#	The name of this test, passed to DejaGNU's `pass' and `fail'
+#       commands.  If omitted, this defaults to FILE, the root of the
+#       .s and .d files' names.
+# 
+#   as: FLAGS
+#	When assembling, pass FLAGS to the assembler.
+#       If assembling several files, you can pass different assembler
+#       options in the "source" directives.  See below.
+#
+#   ld: FLAGS
+#       Link assembled files using FLAGS, in the order of the "source"
+#       directives, when using multiple files.
+#
+#   PROG: PROGRAM-NAME
+#       The name of the program to run to analyze the .o file produced
+#       by the assembler or the linker output.  This can be omitted;
+#       run_dump_test will guess which program to run by seeing which of
+#       the flags options below is present.
+#
+#   objdump: FLAGS
+#   nm: FLAGS
+#   objcopy: FLAGS
+#	Use the specified program to analyze the assembler or linker
+#       output file, and pass it FLAGS, in addition to the output name.
+#
+#   source: SOURCE [FLAGS]
+#	Assemble the file SOURCE.s using the flags in the "as" directive
+#       and the (optional) FLAGS.  If omitted, the source defaults to
+#       FILE.s.
+#       This is useful if several .d files want to share a .s file.
+#       More than one "source" directive can be given, which is useful
+#       when testing linking.
+#
+#   xfail: TARGET
+#       The test is expected to fail on TARGET.  This may occur more than
+#       once.
+#
+#   target: TARGET
+#       Only run the test for TARGET.  This may occur more than once; the
+#       target being tested must match at least one.
+#
+#   notarget: TARGET
+#       Do not run the test for TARGET.  This may occur more than once;
+#       the target being tested must not match any of them.
+#
+#   error: REGEX
+#	An error with message matching REGEX must be emitted for the test
+#	to pass.  The PROG, objdump, nm and objcopy options have no
+#	meaning and need not supplied if this is present.
+#
+# Each option may occur at most once unless otherwise mentioned.
+#
+# After the option lines come regexp lines.  `run_dump_test' calls
+# `regexp_diff' to compare the output of the dumping tool against the
+# regexps in FILE.d.  `regexp_diff' is defined later in this file; see
+# further comments there.
+
+proc run_dump_test { name } {
+    global subdir srcdir
+    global OBJDUMP NM AS OBJCOPY READELF LD
+    global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
+    global host_triplet runtests
+
+    if [string match "*/*" $name] {
+	set file $name
+	set name [file tail $name]
+    } else {
+	set file "$srcdir/$subdir/$name"
+    }
+
+    if ![runtest_file_p $runtests $name] then {
+	return
+    }
+
+    set opt_array [slurp_options "${file}.d"]
+    if { $opt_array == -1 } {
+	perror "error reading options from $file.d"
+	unresolved $subdir/$name
+	return
+    }
+    set dumpfile tmpdir/dump.out
+    set run_ld 0
+    set opts(as) {}
+    set opts(ld) {}
+    set opts(xfail) {}
+    set opts(target) {}
+    set opts(notarget) {}
+    set opts(objdump) {}
+    set opts(nm) {}
+    set opts(objcopy) {}
+    set opts(readelf) {}
+    set opts(name) {}
+    set opts(PROG) {}
+    set opts(source) {}
+    set opts(error) {}
+    set asflags{${file}.s} {}
+
+    foreach i $opt_array {
+	set opt_name [lindex $i 0]
+	set opt_val [lindex $i 1]
+	if ![info exists opts($opt_name)] {
+	    perror "unknown option $opt_name in file $file.d"
+	    unresolved $subdir/$name
+	    return
+	}
+
+	switch -- $opt_name {
+	    xfail {}
+	    target {}
+	    notarget {}
+	    source {
+		# Move any source-specific as-flags to a separate array to
+		# simplify processing.
+		if { [llength $opt_val] > 1 } {
+		    set asflags([lindex $opt_val 0]) [lrange $opt_val 1 end]
+		    set opt_val [lindex $opt_val 0]
+		} else {
+		    set asflags($opt_val) {}
+		}
+	    }
+	    default {
+		if [string length $opts($opt_name)] {
+		    perror "option $opt_name multiply set in $file.d"
+		    unresolved $subdir/$name
+		    return
+		}
+
+		# A single "# ld:" with no options should do the right thing.
+		if { $opt_name == "ld" } {
+		    set run_ld 1
+		}
+	    }
+	}
+	set opts($opt_name) [concat $opts($opt_name) $opt_val]
+    }
+
+    # Decide early whether we should run the test for this target.
+    if { [llength $opts(target)] > 0 } {
+	set targmatch 0
+	foreach targ $opts(target) {
+	    if [istarget $targ] {
+		set targmatch 1
+		break
+	    }
+	}
+	if { $targmatch == 0 } {
+	    return
+	}
+    }
+    foreach targ $opts(notarget) {
+	if [istarget $targ] {
+	    return
+	}
+    }
+
+    if {$opts(PROG) != ""} {
+	switch -- $opts(PROG) {
+	    objdump
+		{ set program objdump }
+	    nm
+		{ set program nm }
+	    objcopy
+		{ set program objcopy }
+	    readelf
+		{ set program readelf }
+	    default
+		{ perror "unrecognized program option $opts(PROG) in $file.d"
+		  unresolved $subdir/$name
+		  return }
+	}
+    } elseif { $opts(error) != "" } {
+	# It's meaningless to require an output-testing method when we
+	# expect an error.  For simplicity, we fake an arbitrary method.
+	set program "nm"
+    } else {
+	# Guess which program to run, by seeing which option was specified.
+	set program ""
+	foreach p {objdump objcopy nm readelf} {
+	    if {$opts($p) != ""} {
+		if {$program != ""} {
+		    perror "ambiguous dump program in $file.d"
+		    unresolved $subdir/$name
+		    return
+		} else {
+		    set program $p
+		}
+	    }
+	}
+	if {$program == ""} {
+	    perror "dump program unspecified in $file.d"
+	    unresolved $subdir/$name
+	    return
+	}
+    }
+
+    set progopts1 $opts($program)
+    eval set progopts \$[string toupper $program]FLAGS
+    eval set binary \$[string toupper $program]
+    if { $opts(name) == "" } {
+	set testname "$subdir/$name"
+    } else {
+	set testname $opts(name)
+    }
+
+    if { $opts(source) == "" } {
+	set sourcefiles [list ${file}.s]
+    } else {
+	set sourcefiles {}
+	foreach sf $opts(source) {
+	    lappend sourcefiles "$srcdir/$subdir/$sf"
+	    # Must have asflags indexed on source name.
+	    set asflags($srcdir/$subdir/$sf) $asflags($sf)
+	}
+    }
+
+    # Time to setup xfailures.
+    foreach targ $opts(xfail) {
+	setup_xfail $targ
+    }
+
+    # Assemble each file.
+    set objfiles {}
+    for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
+	set sourcefile [lindex $sourcefiles $i]
+
+	set objfile "tmpdir/dump$i.o"
+	lappend objfiles $objfile
+	set cmd "$AS $ASFLAGS $opts(as) $asflags($sourcefile) -o $objfile $sourcefile"
+
+	send_log "$cmd\n"
+	set cmdret [catch "exec $cmd" comp_output]
+	set comp_output [prune_warnings $comp_output]
+
+	# We accept errors at assembly stage too, unless we're supposed to
+	# link something.
+	if { $cmdret != 0 || ![string match "" $comp_output] } then {
+	    send_log "$comp_output\n"
+	    verbose "$comp_output" 3
+	    if { $opts(error) != "" && $run_ld == 0 } {
+		if [regexp $opts(error) $comp_output] {
+		    pass $testname
+		    return
+		}
+	    }
+	    fail $testname
+	    return
+	}
+    }
+
+    # Perhaps link the file(s).
+    if { $run_ld } {
+	set objfile "tmpdir/dump"
+	set cmd "$LD $LDFLAGS $opts(ld) -o $objfile $objfiles"
+
+	send_log "$cmd\n"
+	set cmdret [catch "exec $cmd" comp_output]
+	set comp_output [prune_warnings $comp_output]
+
+	if { $cmdret != 0 || ![string match "" $comp_output] } then {
+	    verbose -log "failed with: <$comp_output>, expected: <$opts(error)>"
+	    send_log "$comp_output\n"
+	    verbose "$comp_output" 3
+	    if { $opts(error) != "" } {
+		if [regexp $opts(error) $comp_output] {
+		    pass $testname
+		    return
+		}
+	    }
+	    fail $testname
+	    return
+	}
+    } else {
+	set objfile "tmpdir/dump0.o"
+    }
+
+    # We must not have expected failure if we get here.
+    if { $opts(error) != "" } {
+	fail $testname
+    }
+
+    if { [which $binary] == 0 } {
+	untested $testname
+	return
+    }
+
+    if { $progopts1 == "" } { set $progopts1 "-r" }
+    verbose "running $binary $progopts $progopts1" 3
+
+    # Objcopy, unlike the other two, won't send its output to stdout,
+    # so we have to run it specially.
+    if { $program == "objcopy" } {
+	set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
+	send_log "$cmd\n"
+	catch "exec $cmd" comp_output
+	set comp_output [prune_warnings $comp_output]
+	if ![string match "" $comp_output] then {
+	    send_log "$comp_output\n"
+	    fail $testname
+	    return
+	}
+    } else {
+	set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
+	send_log "$cmd\n"
+	catch "exec $cmd" comp_output
+	set comp_output [prune_warnings $comp_output]
+	if ![string match "" $comp_output] then {
+	    send_log "$comp_output\n"
+	    fail $testname
+	    return
+	}
+    }
+
+    verbose_eval {[file_contents $dumpfile]} 3
+    if { [regexp_diff $dumpfile "${file}.d"] } then {
+	fail $testname
+	verbose "output is [file_contents $dumpfile]" 2
+	return
+    }
+
+    pass $testname
+}
+
+proc slurp_options { file } {
+    if [catch { set f [open $file r] } x] {
+	#perror "couldn't open `$file': $x"
+	perror "$x"
+	return -1
+    }
+    set opt_array {}
+    # whitespace expression
+    set ws  {[ 	]*}
+    set nws {[^ 	]*}
+    # whitespace is ignored anywhere except within the options list;
+    # option names are alphabetic only
+    set pat "^#${ws}(\[a-zA-Z\]*)$ws:${ws}(.*)$ws\$"
+    while { [gets $f line] != -1 } {
+	set line [string trim $line]
+	# Whitespace here is space-tab.
+	if [regexp $pat $line xxx opt_name opt_val] {
+	    # match!
+	    lappend opt_array [list $opt_name $opt_val]
+	} else {
+	    break
+	}
+    }
+    close $f
+    return $opt_array
+}
+
+# regexp_diff, copied from gas, based on simple_diff above.
+#	compares two files line-by-line
+#	file1 contains strings, file2 contains regexps and #-comments
+#	blank lines are ignored in either file
+#	returns non-zero if differences exist
+#
+proc regexp_diff { file_1 file_2 } {
+
+    set eof -1
+    set end_1 0
+    set end_2 0
+    set differences 0
+    set diff_pass 0
+
+    if [file exists $file_1] then {
+	set file_a [open $file_1 r]
+    } else {
+	warning "$file_1 doesn't exist"
+	return 1
+    }
+
+    if [file exists $file_2] then {
+	set file_b [open $file_2 r]
+    } else {
+	fail "$file_2 doesn't exist"
+	close $file_a
+	return 1
+    }
+
+    verbose " Regexp-diff'ing: $file_1 $file_2" 2
+
+    while { 1 } {
+	set line_a ""
+	set line_b ""
+	while { [string length $line_a] == 0 } {
+	    if { [gets $file_a line_a] == $eof } {
+		set end_1 1
+		break
+	    }
+	}
+	while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
+	    if [ string match "#pass" $line_b ] {
+		set end_2 1
+		set diff_pass 1
+		break
+	    } elseif [ string match "#..." $line_b ] {
+		if { [gets $file_b line_b] == $eof } {
+		    set end_2 1
+		    break
+		}
+		verbose "looking for \"^$line_b$\"" 3
+		while { ![regexp "^$line_b$" "$line_a"] } {
+		    verbose "skipping    \"$line_a\"" 3
+		    if { [gets $file_a line_a] == $eof } {
+			set end_1 1
+			break
+		    }
+		}
+		break
+	    }
+	    if { [gets $file_b line_b] == $eof } {
+		set end_2 1
+		break
+	    }
+	}
+
+        if { $diff_pass } { 
+            break 
+        } elseif { $end_1 && $end_2 } { 
+            break
+        } elseif { $end_1 } {
+            send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
+            verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
+            set differences 1
+            break
+        } elseif { $end_2 } {
+            send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
+            verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
+            set differences 1
+            break
+        } else {
+            verbose "regexp \"^$line_b$\"\nline   \"$line_a\"" 3
+            if ![regexp "^$line_b$" "$line_a"] {
+		send_log "regexp_diff match failure\n"
+		send_log "regexp \"^$line_b$\"\nline   \"$line_a\"\n"
+		set differences 1
+            }
+        }
+    }
+
+    if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
+	send_log "$file_1 and $file_2 are different lengths\n"
+	verbose "$file_1 and $file_2 are different lengths" 3
+	set differences 1
+    }
+
+    close $file_a
+    close $file_b
+
+    return $differences
+}
+
+proc file_contents { filename } {
+    set file [open $filename r]
+    set contents [read $file]
+    close $file
+    return $contents
+}
+
+proc verbose_eval { expr { level 1 } } {
+    global verbose
+    if $verbose>$level then { eval verbose "$expr" $level }
+}
+
 # This definition is taken from an unreleased version of DejaGnu.  Once
 # that version gets released, and has been out in the world for a few
 # months at least, it may be safe to delete this copy.