ld/testsuite/ld-scripts/weak.exp

   1 # Test weak symbols.
   2 # By Ian Lance Taylor, Cygnus Solutions.
   3
   4 set testname "weak symbols"
   5
   6 # This test only works for ELF targets.  It ought to work for some
   7 # a.out targets, but it doesn't.
   8
   9 if { ![istarget *-*-sysv4*] \
  10      && ![istarget *-*-unixware*] \
  11      && ![istarget *-*-elf*] \
  12      && ![istarget *-*-eabi*] \
  13      && ![istarget *-*-linux*] \
  14      && ![istarget *-*-irix5*] \
  15      && ![istarget *-*-irix6*] \
  16      && ![istarget *-*-solaris2*] } then {
  17     return
  18 }
  19
  20 if { [istarget *-*-linux*aout*] \
  21      || [istarget *-*-linux*oldld*] } {
  22     return
  23 }
  24
  25 if {! [ld_assemble $as $srcdir/$subdir/weak1.s tmpdir/weak1.o]
  26     || ! [ld_assemble $as $srcdir/$subdir/weak2.s tmpdir/weak2.o]} then {
  27     # It's OK if .weak doesn't work on this target.
  28     unresolved $testname
  29     return
  30 }
  31
  32 set weak_regexp_big \
  33 ".*Contents of section .text:.*1000 00001008 0000200c 12121212 34343434.*Contents of section .data:.*2000 00001008 0000200c 56565656 78787878.*"
  34
  35 set weak_regexp_little \
  36 ".*Contents of section .text:.*1000 08100000 0c200000 12121212 34343434.*Contents of section .data:.*2000 08100000 0c200000 56565656 78787878.*"
  37
  38 # hppa-elf needs a definition for $global$.
  39 set flags ""
  40 if [istarget hppa*-*-*] {
  41     set flags "--defsym \\\$global\\\$=0"
  42 }
  43
  44 if {! [ld_simple_link $ld tmpdir/weak "$flags -T $srcdir/$subdir/weak.t tmpdir/weak1.o tmpdir/weak2.o"] } then {
  45     fail $testname
  46 } else {
  47     if {[which $objdump] == 0} then {
  48         unresolved $testname
  49         return
  50     }
  51
  52     verbose -log "$objdump -s tmpdir/weak"
  53     catch "exec $objdump -s tmpdir/weak" exec_output
  54     set exec_output [prune_warnings $exec_output]
  55     verbose -log $exec_output
  56
  57     if {[regexp $weak_regexp_big $exec_output] \
  58         || [regexp $weak_regexp_little $exec_output] } then {
  59         pass $testname
  60     } else {
  61         fail $testname
  62     }
  63 }