ld/testsuite/ld-gc/gc.exp

   1 # Expect script for ld-gc tests
   2 #   Copyright (C) 2008-2020 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 global NOSANTIZE_CFLAGS
  27
  28 set cflags "-ffunction-sections -fdata-sections $NOSANTIZE_CFLAGS"
  29 set objfile "tmpdir/gc.o"
  30
  31 # Add $NOPIE_CFLAGS and $NOPIE_LDFLAGS if non-PIE is required.
  32 global NOPIE_CFLAGS NOPIE_LDFLAGS
  33
  34 if [istarget powerpc64*-*-*] {
  35     # otherwise with -mcmodel=medium gcc we get XPASSes.
  36     set cflags "$cflags -mminimal-toc"
  37 }
  38
  39 if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
  40     # Otherwise tests FAIL due to _.frame
  41     set cflags "$cflags -fomit-frame-pointer -mshort"
  42 }
  43
  44 if { [check_compiler_available] } {
  45     ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
  46 }
  47
  48 proc test_gc { testname filename linker ldflags} {
  49     global nm
  50     global srcdir
  51     global subdir
  52     global nm_output
  53     global objfile
  54
  55     if ![file readable $objfile ] {
  56         untested $testname
  57         return
  58     }
  59
  60     set outfile "tmpdir/$filename"
  61     set options "-L$srcdir/$subdir"
  62     append options " " $ldflags " " [ld_link_defsyms] " " $objfile
  63
  64     if ![ld_link $linker $outfile $options] {
  65         fail $testname
  66         return
  67     }
  68     if ![ld_nm $nm "" $outfile] {
  69         unresolved $testname
  70         return
  71     }
  72     if {![info exists nm_output(used_func)] \
  73             || ![info exists nm_output(used_var)]} {
  74         send_log "used sections do not exist\n"
  75         verbose "used sections do not exist"
  76         fail $testname
  77         return
  78     }
  79     #ppc64_elf_gc_mark_hook needs to be taught how to look through
  80     #the .toc section to properly mark variable sections for gc.
  81     setup_xfail "powerpc64*-*-*"
  82     if {[info exists nm_output(unused_func)] \
  83             || [info exists nm_output(unused_var)]} {
  84         send_log "unused section still here\n"
  85         verbose "unused section still here"
  86         fail $testname
  87         return
  88     }
  89     pass $testname
  90 }
  91
  92 test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
  93 test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
  94 test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
  95 test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
  96
  97 run_dump_test "noent"
  98 run_dump_test "abi-note"
  99 run_dump_test "start"
 100 run_dump_test "stop"
 101 run_dump_test "pr19167"
 102 if { [is_elf_format] } then {
 103     run_dump_test "all-debug-sections"
 104     run_dump_test "pr20882"
 105 }
 106
 107 if { [is_elf_format] && [check_shared_lib_support] } then {
 108     set gasopt ""
 109     if { [istarget tic6x-*] } then {
 110         set gasopt "-mpic -mpid=near"
 111     }
 112     # These targets do not default to linking with shared libraries.
 113     set old_ldflags $LDFLAGS
 114     if { [istarget "mips*vr4100*-*-elf*"] \
 115          || [istarget "mips*vr4300*-*-elf*"] \
 116          || [istarget "mips*vr5000*-*-elf*"] } {
 117         append LDFLAGS " -call_shared"
 118     }
 119     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
 120         || ![ld_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
 121         fail libpersonality
 122     } else {
 123         run_dump_test "personality"
 124     }
 125     run_dump_test "pr18223"
 126     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/pr20022a.s tmpdir/pr20022a.o]
 127         || ![ld_link $ld tmpdir/pr20022.so "-shared --gc-sections tmpdir/pr20022a.o"] } then {
 128         fail pr20022
 129     } else {
 130         run_dump_test "pr20022"
 131     }
 132     set LDFLAGS $old_ldflags
 133 }
 134
 135 if { [check_compiler_available] } {
 136     if { [istarget "*-*-linux*"]
 137          || [istarget "*-*-nacl*"]
 138          || [istarget "*-*-gnu*"] } {
 139         ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
 140         ld_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
 141         ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
 142         run_dump_test "pr11218"
 143     }
 144 }
 145
 146 if { [check_compiler_available] } {
 147         ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
 148         run_dump_test "pr13683"
 149 }
 150
 151 if { [check_compiler_available] } {
 152     ld_compile "$CC $CFLAGS $cflags $NOPIE_CFLAGS" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
 153     run_dump_test "pr14265"
 154 }
 155
 156 if { [check_compiler_available] } {
 157     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o
 158     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o
 159     set saved_LDFLAGS "$LDFLAGS"
 160     if [istarget hppa*-*-linux*] {
 161         set LDFLAGS "$LDFLAGS --defsym '\$\$dyncall=0'"
 162     }
 163     run_dump_test "pr19161"
 164     set LDFLAGS "$saved_LDFLAGS"
 165 }
 166
 167 if { [is_elf_format] && [check_shared_lib_support] \
 168      && [check_compiler_available] } {
 169     run_cc_link_tests [list \
 170         [list \
 171             "Build libpr20306.so" \
 172             "-shared" \
 173             "-fPIC" \
 174             {pr20306.c} \
 175             {} \
 176             "libpr20306.so" \
 177         ] \
 178     ]
 179     run_dump_test "pr20306"
 180 }
 181
 182 if { [is_elf_format] } then {
 183     run_dump_test "skip-map-discarded"
 184 }