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      1 # Expect script for ld-gc tests
      2 #   Copyright (C) 2008-2014 Free Software Foundation, Inc.
      3 #
      4 # This file is part of the GNU Binutils.
      5 #
      6 # This program is free software; you can redistribute it and/or modify
      7 # it under the terms of the GNU General Public License as published by
      8 # the Free Software Foundation; either version 3 of the License, or
      9 # (at your option) any later version.
     10 #
     11 # This program is distributed in the hope that it will be useful,
     12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 # GNU General Public License for more details.
     15 #
     16 # You should have received a copy of the GNU General Public License
     17 # along with this program; if not, write to the Free Software
     18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     19 # MA 02110-1301, USA.
     20 
     21 # These tests require --gc-sections
     22 if ![check_gc_sections_available] {
     23     return
     24 }
     25 
     26 set cflags "-ffunction-sections -fdata-sections"
     27 set objfile "tmpdir/gc.o"
     28 
     29 if [istarget powerpc64*-*-*] {
     30     # otherwise with -mcmodel=medium gcc we get XPASSes.
     31     set cflags "$cflags -mminimal-toc"
     32 }
     33 
     34 if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
     35     # Otherwise tests FAIL due to _.frame
     36     set cflags "$cflags -fomit-frame-pointer -mshort"
     37 }
     38 
     39 if { [is_remote host] || [which $CC] != 0 } {
     40     ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
     41 }
     42 
     43 proc test_gc { testname filename linker ldflags} {
     44     global nm
     45     global srcdir
     46     global subdir
     47     global nm_output
     48     global objfile
     49 
     50     if ![file readable $objfile ] {
     51 	untested $testname
     52 	return
     53     }
     54 
     55     set outfile "tmpdir/$filename"
     56     set options "-L$srcdir/$subdir"
     57     append options " " $ldflags " " [ld_simple_link_defsyms] " " $objfile
     58 
     59     # SH64 targets needs an extra ld option for this test.
     60     if [istarget sh64*-*-*] {
     61 	if [istarget sh64*l*-*-*] {
     62 	    set options "-mshlelf32 $options"
     63 	} else {
     64 	    set options "-mshelf32 $options"
     65 	}
     66     }
     67 
     68     if ![ld_simple_link $linker $outfile $options] {
     69 	fail $testname
     70 	return
     71     }
     72     if ![ld_nm $nm "" $outfile] {
     73 	unresolved $testname
     74 	return
     75     }
     76     if {![info exists nm_output(used_func)] \
     77 	    || ![info exists nm_output(used_var)]} {
     78 	send_log "used sections do not exist\n"
     79 	verbose "used sections do not exist"
     80 	fail $testname
     81 	return
     82     }
     83     #ppc64_elf_gc_mark_hook needs to be taught how to look through
     84     #the .toc section to properly mark variable sections for gc.
     85     setup_xfail "powerpc64*-*-*"
     86     if {[info exists nm_output(unused_func)] \
     87 	    || [info exists nm_output(unused_var)]} {
     88 	send_log "unused section still here\n"
     89 	verbose "unused section still here"
     90 	fail $testname
     91 	return
     92     }
     93     pass $testname
     94 }
     95 
     96 test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
     97 test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
     98 test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
     99 test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
    100 
    101 run_dump_test "noent"
    102 run_dump_test "abi-note"
    103 run_dump_test "start"
    104 
    105 if { [is_elf_format] && [check_shared_lib_support] } then {
    106     set gasopt ""
    107     if { [istarget tic6x-*] } then {
    108 	set gasopt "-mpic -mpid=near"
    109     }
    110     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
    111 	|| ![ld_simple_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
    112 	fail libpersonality
    113     } else {
    114 	run_dump_test "personality"
    115     }
    116 }
    117 
    118 if { [is_remote host] || [which $CC] != 0 } {
    119     if { [istarget "*-*-linux*"]
    120 	 || [istarget "*-*-nacl*"]
    121 	 || [istarget "*-*-gnu*"] } {
    122 	ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
    123 	ld_simple_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
    124  	ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
    125 	run_dump_test "pr11218"
    126     }
    127 }
    128 
    129 if { [is_remote host] || [which $CC] != 0 } {
    130 	ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
    131 	run_dump_test "pr13683"
    132 }
    133 
    134 if { [is_remote host] || [which $CC] != 0 } {
    135     ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
    136     run_dump_test "pr14265"
    137 }
    138