gdb/testsuite/gdb.base/ctxobj.exp

   1 # Copyright 2012 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 set executable ctxobj-m
  17
  18 # The sources used to build two shared libraries (SO).  We use the exact
  19 # same sources to build both SOs, but differentiate them through the use
  20 # of macros defined when calling the compiler.
  21 #
  22 # We need two source files per SO, because we need to test the situation
  23 # where we are trying to print the value of a global variable defined
  24 # in that SO while the variable's associated symtab has not been created
  25 # yet.
  26 set libsrc [list "${srcdir}/${subdir}/ctxobj-v.c" \
  27                  "${srcdir}/${subdir}/ctxobj-f.c"]
  28
  29 set libobj1 "${objdir}/${subdir}/libctxobj1.so"
  30 set libobj2 "${objdir}/${subdir}/libctxobj2.so"
  31
  32 set libobj1_opts { debug additional_flags=-fPIC
  33                    additional_flags=-DVERSION=104
  34                    additional_flags=-DGET_VERSION=get_version_1 }
  35 set libobj2_opts { debug additional_flags=-fPIC
  36                    additional_flags=-DVERSION=203
  37                    additional_flags=-DGET_VERSION=get_version_2 }
  38
  39 if { [gdb_compile_shlib $libsrc $libobj1 $libobj1_opts ] != "" } {
  40     return -1
  41 }
  42 if { [gdb_compile_shlib $libsrc $libobj2 $libobj2_opts ] != "" } {
  43     return -1
  44 }
  45 if { [gdb_compile "${srcdir}/${subdir}/${executable}.c" \
  46                   "${objdir}/${subdir}/${executable}" \
  47                   executable \
  48                   [list debug shlib=${libobj1} shlib=${libobj2}]]
  49      != ""} {
  50     return -1
  51 }
  52
  53 clean_restart $executable
  54
  55 if ![runto_main] {
  56     untested "could not run to main"
  57     return -1
  58 }
  59
  60 gdb_breakpoint "get_version_1"
  61 gdb_test "continue" \
  62          "Breakpoint $decimal, get_version_1 \\(\\).*" \
  63          "continue to get_version_1"
  64
  65 # Try printing "this_version_num".  There are two global variables
  66 # with that name, but we should pick the one in the shared library
  67 # we are currently debugging.  We will know we picked the correct one
  68 # if the value printed is 104.  The first print test verifies that
  69 # we're doing things right when the partial symtab hasn't been
  70 # expanded.  And the second print test will do the same, but after
  71 # the partial symtab has been expanded.
  72
  73 gdb_test "print this_version_num" \
  74          " = 104" \
  75         "print libctxobj1's this_version_num from partial symtab"
  76
  77 gdb_test "print this_version_num" \
  78          " = 104" \
  79         "print libctxobj1's this_version_num from symtab"
  80
  81 # Do the same, but from get_version_2.
  82
  83 gdb_breakpoint "get_version_2"
  84 gdb_test "continue" \
  85          "Breakpoint $decimal, get_version_2 \\(\\).*" \
  86          "continue to get_version_2"
  87
  88 gdb_test "print this_version_num" \
  89          " = 203" \
  90         "print libctxobj2's this_version_num from partial symtab"
  91
  92 gdb_test "print this_version_num" \
  93          " = 203" \
  94         "print libctxobj2's this_version_num from symtab"