ld/testsuite/ld-gc/gc.exp

   1 # Expect script for ld-gc tests
   2 #   Copyright (C) 2008-2019 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 # Add $NOPIE_CFLAGS and $NOPIE_LDFLAGS if non-PIE is required.
  30 global NOPIE_CFLAGS NOPIE_LDFLAGS
  31
  32 if [istarget powerpc64*-*-*] {
  33     # otherwise with -mcmodel=medium gcc we get XPASSes.
  34     set cflags "$cflags -mminimal-toc"
  35 }
  36
  37 if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
  38     # Otherwise tests FAIL due to _.frame
  39     set cflags "$cflags -fomit-frame-pointer -mshort"
  40 }
  41
  42 if { [check_compiler_available] } {
  43     ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
  44 }
  45
  46 proc test_gc { testname filename linker ldflags} {
  47     global nm
  48     global srcdir
  49     global subdir
  50     global nm_output
  51     global objfile
  52
  53     if ![file readable $objfile ] {
  54         untested $testname
  55         return
  56     }
  57
  58     set outfile "tmpdir/$filename"
  59     set options "-L$srcdir/$subdir"
  60     append options " " $ldflags " " [ld_link_defsyms] " " $objfile
  61
  62     if ![ld_link $linker $outfile $options] {
  63         fail $testname
  64         return
  65     }
  66     if ![ld_nm $nm "" $outfile] {
  67         unresolved $testname
  68         return
  69     }
  70     if {![info exists nm_output(used_func)] \
  71             || ![info exists nm_output(used_var)]} {
  72         send_log "used sections do not exist\n"
  73         verbose "used sections do not exist"
  74         fail $testname
  75         return
  76     }
  77     #ppc64_elf_gc_mark_hook needs to be taught how to look through
  78     #the .toc section to properly mark variable sections for gc.
  79     setup_xfail "powerpc64*-*-*"
  80     if {[info exists nm_output(unused_func)] \
  81             || [info exists nm_output(unused_var)]} {
  82         send_log "unused section still here\n"
  83         verbose "unused section still here"
  84         fail $testname
  85         return
  86     }
  87     pass $testname
  88 }
  89
  90 test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
  91 test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
  92 test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
  93 test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
  94
  95 run_dump_test "noent"
  96 run_dump_test "abi-note"
  97 run_dump_test "start"
  98 run_dump_test "stop"
  99 run_dump_test "pr19167"
 100 if { [is_elf_format] } then {
 101     run_dump_test "all-debug-sections"
 102     run_dump_test "pr20882"
 103 }
 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     # These targets do not default to linking with shared libraries.
 111     set old_ldflags $LDFLAGS
 112     if { [istarget "mips*vr4100*-*-elf*"] \
 113          || [istarget "mips*vr4300*-*-elf*"] \
 114          || [istarget "mips*vr5000*-*-elf*"] } {
 115         append LDFLAGS " -call_shared"
 116     }
 117     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
 118         || ![ld_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
 119         fail libpersonality
 120     } else {
 121         run_dump_test "personality"
 122     }
 123     run_dump_test "pr18223"
 124     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/pr20022a.s tmpdir/pr20022a.o]
 125         || ![ld_link $ld tmpdir/pr20022.so "-shared --gc-sections tmpdir/pr20022a.o"] } then {
 126         fail pr20022
 127     } else {
 128         run_dump_test "pr20022"
 129     }
 130     set LDFLAGS $old_ldflags
 131 }
 132
 133 if { [check_compiler_available] } {
 134     if { [istarget "*-*-linux*"]
 135          || [istarget "*-*-nacl*"]
 136          || [istarget "*-*-gnu*"] } {
 137         ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
 138         ld_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
 139         ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
 140         run_dump_test "pr11218"
 141     }
 142 }
 143
 144 if { [check_compiler_available] } {
 145         ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
 146         run_dump_test "pr13683"
 147 }
 148
 149 if { [check_compiler_available] } {
 150     ld_compile "$CC $CFLAGS $cflags $NOPIE_CFLAGS" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
 151     run_dump_test "pr14265"
 152 }
 153
 154 if { [check_compiler_available] } {
 155     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o
 156     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o
 157     set saved_LDFLAGS "$LDFLAGS"
 158     if [istarget hppa*-*-linux*] {
 159         set LDFLAGS "$LDFLAGS --defsym '\$\$dyncall=0'"
 160     }
 161     run_dump_test "pr19161"
 162     set LDFLAGS "$saved_LDFLAGS"
 163 }
 164
 165 if { [is_elf_format] && [check_shared_lib_support] \
 166      && [check_compiler_available] } {
 167     run_cc_link_tests [list \
 168         [list \
 169             "Build libpr20306.so" \
 170             "-shared" \
 171             "-fPIC" \
 172             {pr20306.c} \
 173             {} \
 174             "libpr20306.so" \
 175         ] \
 176     ]
 177     run_dump_test "pr20306"
 178 }
 179
 180 if { [is_elf_format] } then {
 181     run_dump_test "skip-map-discarded"
 182 }