gdb/testsuite/gdb.base/solib-weak.exp

   1 #   Copyright 2006, 2007 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # Test setting breakpoints on shared library functions provided by more
  17 # than one shared library, when one of the implementations is a "weak"
  18 # symbol.  GDB should set a breakpoint at the first copy it finds.
  19
  20 if {[skip_shlib_tests]} {
  21     return 0
  22 }
  23
  24 # These targets have shared libraries, but weak symbols are not meaningful.
  25 if {([istarget arm*-*-symbianelf*]
  26      || [istarget *-*-mingw*]
  27      || [istarget *-*-cygwin*]
  28      || [istarget *-*-pe*])} {
  29     return 0
  30 }
  31
  32 # This test uses GCC-specific syntax.
  33 if [get_compiler_info not-used] {
  34     return -1
  35 }
  36
  37 if {![test_compiler_info "gcc-*"]} {
  38     return 0
  39 }
  40
  41 proc do_test { lib1opts lib2opts lib1first } {
  42     global objdir srcdir subdir
  43
  44     set testopts ""
  45     if {$lib1opts == ""} {
  46         append testopts "lib1 nodebug, "
  47     } else {
  48         append testopts "lib1 debug, "
  49     }
  50     if {$lib2opts == ""} {
  51         append testopts "lib2 nodebug, "
  52     } else {
  53         append testopts "lib2 debug, "
  54     }
  55     if {$lib1first} {
  56         append testopts "lib1 first"
  57     } else {
  58         append testopts "lib2 first"
  59     }
  60
  61     set testfile "solib-weak"
  62     set srcfile ${testfile}.c
  63     set binfile ${objdir}/${subdir}/${testfile}
  64
  65     set libfile1 "weaklib1"
  66     set libfile2 "weaklib2"
  67     set lib1src ${srcdir}/${subdir}/${libfile1}.c
  68     set lib2src ${srcdir}/${subdir}/${libfile2}.c
  69     set lib1 ${objdir}/${subdir}/${libfile1}.sl
  70     set lib2 ${objdir}/${subdir}/${libfile2}.sl
  71
  72     if $lib1first {
  73         set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
  74         set expected_file ${libfile1}
  75     } else {
  76         set exec_opts [list debug shlib=${lib2} shlib=${lib1}]
  77         set expected_file ${libfile2}
  78     }
  79
  80     if { [gdb_compile_shlib ${lib1src} ${lib1} ${lib1opts}] != ""
  81          || [gdb_compile_shlib ${lib2src} ${lib2} ${lib2opts}] != ""
  82          || [gdb_compile "${srcdir}/${subdir}/${srcfile}" ${binfile} executable $exec_opts] != ""} {
  83         return -1
  84     }
  85
  86     gdb_exit
  87     gdb_start
  88     gdb_reinitialize_dir $srcdir/$subdir
  89     gdb_load ${binfile}
  90     gdb_load_shlibs $lib1 $lib2
  91
  92     runto_main
  93
  94     gdb_breakpoint "bar"
  95
  96     # If the library which will be used is compiled without debugging
  97     # information, GDB will pick the wrong copy of "bar", i.e. the one
  98     # with debugging information.
  99
 100     if {(${lib1opts} == "" && ${lib2opts} != "" && ${lib1first} == 1)
 101         || (${lib1opts} != "" && ${lib2opts} == "" && ${lib1first} == 0)} {
 102         setup_kfail *-*-* gdb/1824
 103     }
 104
 105     gdb_test "continue" "Breakpoint .* bar .*${expected_file}\\..*" \
 106         "run to breakpoint - $testopts"
 107 }
 108
 109 foreach lib1opts {{} {debug}} {
 110     foreach lib2opts {{} {debug}} {
 111         foreach lib1first {1 0} {
 112             do_test $lib1opts $lib2opts $lib1first
 113         }
 114     }
 115 }