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 #   2010, 2011 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] || ![check_gc_sections_available] } {
  27     return
  28 }
  29
  30 # List contains test-items with three items followed by four lists:
  31 # 1:name 2:test-type (CC or C++; add as needed) 3:filename 4:ld-flags
  32 # 5:must-have-symbols 6:must-not-have-symbols 7:xfail-targets.
  33 #
  34 # If a must(-not)-have symbol is a list, then that list must have two
  35 # items; the symbol name and a value the symbol must (not) have.
  36 #
  37 # Note: ld_nm trims leading `_' from _start
  38 #
  39 # FIXME: Instead of table, read settings from each source-file.
  40 set seltests {
  41   {selective1 C   1.c  {}       {}    {dropme1 dropme2} {}}
  42   {selective2 C   2.c  {}       {}    {foo} {}}
  43   {selective3 C   2.c  {-u foo} {foo} {{foo 0}} {}}
  44   {selective4 C++ 3.cc {}       {start a A::foo() B::foo()} {A::bar()} {mips*-*}}
  45   {selective5 C++ 4.cc {}       {start a A::bar()} {A::foo() B::foo()} {mips*-*}}
  46   {selective6 C++ 5.cc {}       {start a A::bar()}
  47     {A::foo() B::foo() dropme1() dropme2()} {*-*-*}}
  48 }
  49
  50 set cflags "-w -O -ffunction-sections -fdata-sections"
  51 set cxxflags "-fno-exceptions -fno-rtti"
  52 set ldflags "--gc-sections -Bstatic"
  53
  54 if [istarget mips*-*] {
  55     # MIPS16 doesn't support PIC code.
  56     set cflags "-mno-abicalls $cflags"
  57     # MIPS ELF uses __start by default, we override it.
  58     set ldflags "-e _start $ldflags"
  59 }
  60
  61 if [istarget sh64*-*-elf] {
  62     # This is what gcc passes to ld by default, plus switch to the
  63     # "usual" ELF _start (shelf32 normally uses just `start' for COFF
  64     # compatibility)
  65     set ldflags "-e _start -mshelf32 $ldflags"
  66 }
  67
  68 # If we don't have g++ for the target, mark all tests as untested.
  69 if { ![is_remote host] && [which $CXX] == 0 } {
  70     foreach testitem $seltests {
  71         untested "[lindex $testitem 0]"
  72     }
  73     return
  74 }
  75
  76 foreach testitem $seltests {
  77     set testname [lindex $testitem 0]
  78     set testtype [lindex $testitem 1]
  79     set testfile [lindex $testitem 2]
  80     set objfile "tmpdir/[file rootname $testfile].o"
  81     set ldfile "tmpdir/[file rootname $testfile].x"
  82     set failed 0
  83
  84     set ldargs [lindex $testitem 3]
  85     set mustsyms [lindex $testitem 4]
  86     set mustnotsyms [lindex $testitem 5]
  87     set xfails [lindex $testitem 6]
  88
  89     foreach xfail_target $xfails {
  90         setup_xfail $xfail_target
  91     }
  92
  93     # It's either C or C++ at the moment.
  94     if { $testtype == "C++" } {
  95         set compiler "$CXX"
  96         # Starting with 3.4.0, -fvtable-gc is no longer supported and thus
  97         # the functionality we try to test for cannot be expected to work.
  98         set version [remote_exec host "$CXX -dumpversion"]
  99         set version [lindex $version 1]
 100         if [regexp "^(\[1-9\]\[0-9\]+|\[4-9\]|3.(\[1-9\]\[0-9\]+|\[4-9\]))\\." $version] {
 101             set testflags "$cflags $cxxflags"
 102             setup_xfail {*-*-*}
 103         } else {
 104             set testflags "$cflags $cxxflags -fvtable-gc"
 105         }
 106     } else {
 107         set testflags "$cflags"
 108         set compiler "$CC"
 109     }
 110
 111     # Note that we do not actually *use* CXX; we just add cxxflags for C++
 112     # tests.  It might have been a buglet originally; now I think better
 113     # leave as is.
 114     if { ![ld_compile "$compiler $testflags" $srcdir/$subdir/$testfile $objfile] } {
 115         unresolved $testname
 116         continue
 117     }
 118
 119     # V850 targets need libgcc.a
 120     if [istarget v850*-*-elf] {
 121         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 122         set libgcc [lindex $libgcc 1]
 123         regsub -all "\[\r\n\]" $libgcc "" libgcc
 124         set objfile "$objfile $libgcc"
 125     }
 126
 127     # ARM targets need libgcc.a in THUMB mode so that __call_via_r3 is provided
 128     if {[istarget arm-*-*]} {
 129         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 130         set libgcc [lindex $libgcc 1]
 131         regsub -all "\[\r\n\]" $libgcc "" libgcc
 132         set objfile "$objfile $libgcc"
 133     }
 134
 135     # HPPA linux targets need libgcc.a for millicode routines ($$dyncall).
 136     if [istarget hppa*-*-linux*] {
 137         set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
 138         set libgcc [lindex $libgcc 1]
 139         regsub -all "\[\r\n\]" $libgcc "" libgcc
 140         set objfile "$objfile $libgcc"
 141     }
 142
 143     # m6811/m6812 code has references to soft registers.
 144     if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
 145         set objfile "$objfile --defsym _.frame=0 --defsym _.d1=0"
 146         set objfile "$objfile --defsym _.d2=0"
 147     }
 148
 149     if ![ld_simple_link $ld $ldfile "$ldflags [join $ldargs] $objfile"] {
 150         fail $testname
 151         continue
 152     }
 153
 154     if ![ld_nm $nm --demangle $ldfile] {
 155         unresolved $testname
 156         continue
 157     }
 158
 159     # Must make V2 demangled names look like V3
 160     foreach nm_output_key [array names nm_output] {
 161         if [regsub \\(void\\) $nm_output_key () new_nm_output_key] {
 162             set nm_output($new_nm_output_key) nm_output($nm_output_key)
 163         }
 164     }
 165
 166     # Check each mandated symbol and optionally mandated values.
 167     foreach mustsym $mustsyms {
 168         if { [llength [concat $mustsym]] == 1 } {
 169             if { ![info exists nm_output($mustsym)] } {
 170                 verbose -log "$testname: missing $mustsym"
 171                 fail $testname
 172                 set failed 1
 173                 break
 174             }
 175         } {
 176             set mustsymname [lindex $mustsym 0]
 177             set mustsymvalue [lindex $mustsym 1]
 178             if { ![info exists nm_output($mustsymname)] } {
 179                 verbose -log "$testname: missing $mustsymname"
 180                 fail $testname
 181                 set failed 1
 182                 break
 183             } {
 184                 if { $nm_output($mustsymname) != $mustsymvalue } {
 185                     verbose -log "$testname: $mustsymname != $mustsymvalue"
 186                     verbose -log "is instead $nm_output($mustsymname)"
 187                     fail $testname
 188                     set failed 1
 189                     break
 190                 }
 191             }
 192         }
 193     }
 194
 195     if { $failed != 0 } {
 196         continue
 197     }
 198
 199     # Check each unwanted symbol, or that symbols do not have specific
 200     # values.
 201     foreach mustnotsym $mustnotsyms {
 202         if { [llength [concat $mustnotsym]] == 1 } {
 203             if { [info exists nm_output($mustnotsym)] } {
 204                 verbose -log "$testname: $mustnotsym == $nm_output($mustnotsym)"
 205                 fail $testname
 206                 set failed 1
 207                 break
 208             }
 209         } {
 210             set mustnotsymname [lindex $mustnotsym 0]
 211             set mustnotsymvalue [lindex $mustnotsym 1]
 212             if { [info exists nm_output($mustnotsymname)] \
 213                     && $nm_output($mustnotsymname) == $mustnotsymvalue} {
 214                 verbose -log "$testname: $mustnotsymname == $mustnotsymvalue"
 215                 fail $testname
 216                 set failed 1
 217                 break
 218             }
 219         }
 220     }
 221
 222     if { $failed == 0 } {
 223         pass $testname
 224     }
 225 }