ld/testsuite/ld-gc/gc.exp

   1 # Expect script for ld-gc tests
   2 #   Copyright (C) 2008-2021 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 $NOSANITIZE_CFLAGS $NOLTO_CFLAGS"
  27 set objfile "tmpdir/gc.o"
  28
  29 if { [istarget powerpc*-*-*] && ![istarget powerpc64*-*-*] } {
  30     # Avoid using .got2 for powerpc -m32
  31     set cflags "$cflags $NOPIE_CFLAGS"
  32 }
  33
  34 if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
  35     # Otherwise tests FAIL due to _.frame
  36     set cflags "$cflags -fomit-frame-pointer -mshort"
  37 }
  38
  39 if { [check_compiler_available] } {
  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_link_defsyms] " " $objfile
  58
  59     if ![ld_link $linker $outfile $options] {
  60         fail $testname
  61         return
  62     }
  63     if ![ld_nm $nm "" $outfile] {
  64         fail $testname
  65         return
  66     }
  67     if {![info exists nm_output(used_func)] \
  68             || ![info exists nm_output(used_var)]} {
  69         send_log "used sections do not exist\n"
  70         verbose "used sections do not exist"
  71         fail $testname
  72         return
  73     }
  74     if {[info exists nm_output(unused_func)] \
  75             || [info exists nm_output(unused_var)]} {
  76         send_log "unused section still here\n"
  77         verbose "unused section still here"
  78         fail $testname
  79         return
  80     }
  81     pass $testname
  82 }
  83
  84 test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
  85 test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
  86 test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
  87 test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
  88
  89 run_dump_test "noent"
  90 run_dump_test "abi-note"
  91 run_dump_test "start"
  92 run_dump_test "stop"
  93 run_dump_test "pr19167"
  94 if { [is_elf_format] } then {
  95     run_dump_test "all-debug-sections"
  96     run_dump_test "pr20882"
  97 }
  98
  99 if { [is_elf_format] && [check_shared_lib_support] } then {
 100     set gasopt ""
 101     if { [istarget tic6x-*] } then {
 102         set gasopt "-mpic -mpid=near"
 103     }
 104     # These targets do not default to linking with shared libraries.
 105     set old_ldflags $LDFLAGS
 106     if { [istarget "mips*vr4100*-*-elf*"] \
 107          || [istarget "mips*vr4300*-*-elf*"] \
 108          || [istarget "mips*vr5000*-*-elf*"] } {
 109         append LDFLAGS " -call_shared"
 110     }
 111     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
 112         || ![ld_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
 113         fail libpersonality
 114     } else {
 115         run_dump_test "personality"
 116     }
 117     run_dump_test "pr18223"
 118     if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/pr20022a.s tmpdir/pr20022a.o]
 119         || ![ld_link $ld tmpdir/pr20022.so "-shared --gc-sections tmpdir/pr20022a.o"] } then {
 120         fail pr20022
 121     } else {
 122         run_dump_test "pr20022"
 123     }
 124     set LDFLAGS $old_ldflags
 125 }
 126
 127 if { [check_compiler_available] } {
 128     if { [istarget "*-*-linux*"]
 129          || [istarget "*-*-nacl*"]
 130          || [istarget "*-*-gnu*"] } {
 131         ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
 132         ld_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
 133         ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
 134         run_dump_test "pr11218"
 135     }
 136 }
 137
 138 if { [check_compiler_available] } {
 139         ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
 140         run_dump_test "pr13683"
 141 }
 142
 143 if { [check_compiler_available] } {
 144     ld_compile "$CC $CFLAGS $cflags $NOPIE_CFLAGS" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
 145     run_dump_test "pr14265"
 146 }
 147
 148 if { [check_compiler_available] } {
 149     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o
 150     ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o
 151     set saved_LDFLAGS "$LDFLAGS"
 152     if [istarget hppa*-*-linux*] {
 153         set LDFLAGS "$LDFLAGS --defsym '\$\$dyncall=0'"
 154     }
 155     run_dump_test "pr19161"
 156     set LDFLAGS "$saved_LDFLAGS"
 157 }
 158
 159 if { [is_elf_format] && [check_shared_lib_support] \
 160      && [check_compiler_available] } {
 161     run_cc_link_tests [list \
 162         [list \
 163             "Build libpr20306.so" \
 164             "-shared" \
 165             "-fPIC" \
 166             {pr20306.c} \
 167             {} \
 168             "libpr20306.so" \
 169         ] \
 170     ]
 171     run_dump_test "pr20306"
 172 }
 173
 174 if { [is_elf_format] } then {
 175     run_dump_test "skip-map-discarded"
 176 }