ld/testsuite/ld-undefined/weak-undef.exp

   1 # Test handling of weak undefined symbols
   2
   3 set testname "weak undefined symbols"
   4
   5 # This test only works for ELF targets.  It ought to work for some
   6 # a.out targets, but it doesn't.
   7
   8 if { ![istarget *-*-sysv4*] \
   9      && ![istarget *-*-unixware*] \
  10      && ![istarget *-*-elf*] \
  11      && ![istarget *-*-eabi*] \
  12      && ![istarget *-*-linux*] \
  13      && ![istarget *-*-irix5*] \
  14      && ![istarget *-*-irix6*] \
  15      && ![istarget *-*-solaris2*] } then {
  16     return
  17 }
  18
  19 if { [istarget *-*-linux*aout*] \
  20      || [istarget *-*-linux*oldld*] } {
  21     return
  22 }
  23
  24 if {! [ld_assemble $as $srcdir/$subdir/weak-undef.s tmpdir/weak-undef.o]} then {
  25     # It's OK if .weak doesn't work on this target.
  26     unresolved $testname
  27     return
  28 }
  29
  30 # The linker should accept references to undefined weaks without error,
  31 # and resolve them to zero.
  32
  33 set output_regexp \
  34 ".*Contents of section .data:.*0000 00000000 11111111.*"
  35
  36 if {! [ld_simple_link $ld tmpdir/weak-undef "$flags tmpdir/weak-undef.o -T $srcdir/$subdir/weak-undef.t"] } then {
  37     fail $testname
  38 } else {
  39     if {[which $objdump] == 0} then {
  40         unresolved $testname
  41         return
  42     }
  43
  44     verbose -log "$objdump -s tmpdir/weak-undef"
  45     catch "exec $objdump -s tmpdir/weak-undef" exec_output
  46     set exec_output [prune_warnings $exec_output]
  47     verbose -log $exec_output
  48
  49     if {[regexp $output_regexp $exec_output]} then {
  50         pass $testname
  51     } else {
  52         fail $testname
  53     }
  54 }