ld/testsuite/ld-selective/selective.exp

   1 # Expect script for LD selective linking tests
   2 #   Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is part of the GNU Binutils.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 # MA 02110-1301, USA.
  21 #
  22 # Written by Catherine Moore (clm@cygnus.com)
  23 # Make sure that constructors are handled correctly.
  24
  25 # Only ELF based ports support selective linking
  26 if ![is_elf_format] {
  27     return
  28 }
  29
  30 # These targets do not support selective linking
  31 if {[istarget "alpha*-*-*"] || [istarget "am33*-*-*"] ||
  32     [istarget "arc-*-*"] || [istarget "d30v-*-*"] ||
  33     [istarget "dlx-*-*"] || [istarget "hppa*64*-*-*"] ||
  34     [istarget "i370-*-*"] || [istarget "i860-*-*"] ||
  35     [istarget "i960-*-*"] || [istarget "ia64-*-*"] ||
  36     [istarget "m88*-*-*"] || [istarget "mn10200-*-*"] ||
  37     [istarget "mep-*-*"] || [istarget "or32-*-*"] ||
  38     [istarget "pj*-*-*"]} {
  39     return
  40 }
  41
  42 # List contains test-items with three items followed by four lists:
  43 # 1:name 2:test-type (CC or C++; add as needed) 3:filename 4:ld-flags
  44 # 5:must-have-symbols 6:must-not-have-symbols 7:xfail-targets.
  45 #
  46 # If a must(-not)-have symbol is a list, then that list must have two
  47 # items; the symbol name and a value the symbol must (not) have.
  48 #
  49 # Note: ld_nm trims leading `_' from _start
  50 #
  51 # FIXME: Instead of table, read settings from each source-file.
  52 set seltests {
  53   {selective1 C   1.c  {}       {}    {dropme1 dropme2} {}}
  54   {selective2 C   2.c  {}       {}    {foo} {}}
  55   {selective3 C   2.c  {-u foo} {foo} {{foo 0}} {}}
  56   {selective4 C++ 3.cc {}       {start a A::foo() B::foo()} {A::bar()} {mips*-*}}
  57   {selective5 C++ 4.cc {}       {start a A::bar()} {A::foo() B::foo()} {mips*-*}}
  58   {selective6 C++ 5.cc {}       {start a A::bar()}
  59     {A::foo() B::foo() dropme1() dropme2()} {*-*-*}}
  60 }
  61
  62 set cflags "-w -O -ffunction-sections -fdata-sections"
  63 set cxxflags "-fno-exceptions -fno-rtti"
  64 set ldflags "--gc-sections -Bstatic"
  65
  66 if [istarget mips*-*] {
  67     # MIPS16 doesn't support PIC code.
  68     set cflags "-mno-abicalls $cflags"
  69     # MIPS ELF uses __start by default, we override it.
  70     set ldflags "-e _start $ldflags"
  71 }
  72
  73 if [istarget sh64*-*-elf] {
  74     # This is what gcc passes to ld by default, plus switch to the
  75     # "usual" ELF _start (shelf32 normally uses just `start' for COFF
  76     # compatibility)
  77     set ldflags "-e _start -mshelf32 $ldflags"
  78 }
  79
  80 # If we don't have g++ for the target, mark all tests as untested.
  81 if { ![is_remote host] && [which $CXX] == 0 } {
  82     foreach testitem $seltests {
  83         untested "[lindex $testitem 0]"
  84     }
  85     return
  86 }
  87
  88 foreach testitem $seltests {
  89     set testname [lindex $testitem 0]
  90     set testtype [lindex $testitem 1]
  91     set testfile [lindex $testitem 2]
  92     set objfile "tmpdir/[file rootname $testfile].o"
  93     set ldfile "tmpdir/[file rootname $testfile].x"
  94     set failed 0
  95
  96     set ldargs [lindex $testitem 3]
  97     set mustsyms [lindex $testitem 4]
  98     set mustnotsyms [lindex $testitem 5]
  99     set xfails [lindex $testitem 6]
 100
 101     foreach xfail_target $xfails {
 102         setup_xfail $xfail_target
 103     }
 104     setup_xfail "arc*-*" "d30v*-*" "dlx*-*" "i370*-*" "i860*-*"
 105     setup_xfail "i960*-*" "mn10200-*" "or32-*" "pj-*"
 106
 107     # It's either C or C++ at the moment.
 108     if { $testtype == "C++" } {
 109         set compiler "$CXX"
 110         # Starting with 3.4.0, -fvtable-gc is no longer supported and thus
 111         # the functionality we try to test for cannot be expected to work.
 112         set version [remote_exec host "$CXX -dumpversion"]
 113         set version [lindex $version 1]
 114         if [regexp "^(\[1-9\]\[0-9\]+|\[4-9\]|3.(\[1-9\]\[0-9\]+|\[4-9\]))\\." $version] {
 115             set testflags "$cflags $cxxflags"
 116             setup_xfail {*-*-*}
 117         } else {
 118             set testflags "$cflags $cxxflags -fvtable-gc"
 119         }
 120     } else {
 121         set testflags "$cflags"
 122         set compiler "$CC"
 123     }
 124
 125     # Note that we do not actually *use* CXX; we just add cxxflags for C++
 126     # tests.  It might have been a buglet originally; now I think better
 127     # leave as is.
 128     if { ![ld_compile "$compiler $testflags" $srcdir/$subdir/$testfile $objfile] } {
 129         unresolved $testname
 130         continue
 131     }
 132
 133     # V850 targets need libgcc.a
 134     if [istarget v850*-*-elf] {
 135         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 136         set libgcc [lindex $libgcc 1]
 137         regsub -all "\[\r\n\]" $libgcc "" libgcc
 138         set objfile "$objfile $libgcc"
 139     }
 140
 141     # ARM targets need libgcc.a in THUMB mode so that __call_via_r3 is provided
 142     if {[istarget arm-*-*] || [istarget xscale-*-*]} {
 143         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 144         set libgcc [lindex $libgcc 1]
 145         regsub -all "\[\r\n\]" $libgcc "" libgcc
 146         set objfile "$objfile $libgcc"
 147     }
 148
 149     # HPPA linux targets need libgcc.a for millicode routines ($$dyncall).
 150     if [istarget hppa*-*-linux*] {
 151         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 152         set libgcc [lindex $libgcc 1]
 153         regsub -all "\[\r\n\]" $libgcc "" libgcc
 154         set objfile "$objfile $libgcc"
 155     }
 156
 157     # m6811/m6812 code has references to soft registers.
 158     if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
 159         set objfile "$objfile --defsym _.frame=0 --defsym _.d1=0"
 160         set objfile "$objfile --defsym _.d2=0"
 161     }
 162
 163     if ![ld_simple_link $ld $ldfile "$ldflags [join $ldargs] $objfile"] {
 164         fail $testname
 165         continue
 166     }
 167
 168     if ![ld_nm $nm --demangle $ldfile] {
 169         unresolved $testname
 170         continue
 171     }
 172
 173     # Must make V2 demangled names look like V3
 174     foreach nm_output_key [array names nm_output] {
 175         if [regsub \\(void\\) $nm_output_key () new_nm_output_key] {
 176             set nm_output($new_nm_output_key) nm_output($nm_output_key)
 177         }
 178     }
 179
 180     # Check each mandated symbol and optionally mandated values.
 181     foreach mustsym $mustsyms {
 182         if { [llength [concat $mustsym]] == 1 } {
 183             if { ![info exists nm_output($mustsym)] } {
 184                 verbose -log "$testname: missing $mustsym"
 185                 fail $testname
 186                 set failed 1
 187                 break
 188             }
 189         } {
 190             set mustsymname [lindex $mustsym 0]
 191             set mustsymvalue [lindex $mustsym 1]
 192             if { ![info exists nm_output($mustsymname)] } {
 193                 verbose -log "$testname: missing $mustsymname"
 194                 fail $testname
 195                 set failed 1
 196                 break
 197             } {
 198                 if { $nm_output($mustsymname) != $mustsymvalue } {
 199                     verbose -log "$testname: $mustsymname != $mustsymvalue"
 200                     verbose -log "is instead $nm_output($mustsymname)"
 201                     fail $testname
 202                     set failed 1
 203                     break
 204                 }
 205             }
 206         }
 207     }
 208
 209     if { $failed != 0 } {
 210         continue
 211     }
 212
 213     # Check each unwanted symbol, or that symbols do not have specific
 214     # values.
 215     foreach mustnotsym $mustnotsyms {
 216         if { [llength [concat $mustnotsym]] == 1 } {
 217             if { [info exists nm_output($mustnotsym)] } {
 218                 verbose -log "$testname: $mustnotsym == $nm_output($mustnotsym)"
 219                 fail $testname
 220                 set failed 1
 221                 break
 222             }
 223         } {
 224             set mustnotsymname [lindex $mustnotsym 0]
 225             set mustnotsymvalue [lindex $mustnotsym 1]
 226             if { [info exists nm_output($mustnotsymname)] \
 227                     && $nm_output($mustnotsymname) == $mustnotsymvalue} {
 228                 verbose -log "$testname: $mustnotsymname == $mustnotsymvalue"
 229                 fail $testname
 230                 set failed 1
 231                 break
 232             }
 233         }
 234     }
 235
 236     if { $failed == 0 } {
 237         pass $testname
 238     }
 239 }