gdb/testsuite/gdb.base/relocate.exp

   1 # Copyright 2002, 2003, 2005, 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 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@prep.ai.mit.edu
  18
  19 # relocate.exp -- Expect script to test loading symbols from unrelocated
  20 #                 object files.
  21
  22 if $tracelevel then {
  23     strace $tracelevel
  24 }
  25
  26 set testfile relocate
  27 set srcfile ${testfile}.c
  28 set binfile ${objdir}/${subdir}/${testfile}.o
  29
  30 remote_exec build "rm -f ${binfile}"
  31 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {
  32      untested relocate.exp
  33      return -1
  34 }
  35
  36 proc get_var_address { var } {
  37   global gdb_prompt hex
  38
  39   send_gdb "print &${var}\n"
  40   # Match output like:
  41   # $1 = (int *) 0x0
  42   # $5 = (int (*)()) 0
  43   # $6 = (int (*)()) 0x24 <function_bar>
  44   gdb_expect {
  45     -re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"
  46         {
  47           pass "get address of ${var}"
  48           if { $expect_out(1,string) == "0" } {
  49             return "0x0"
  50           } else {
  51             return $expect_out(1,string)
  52           }
  53         }
  54     -re "${gdb_prompt} $"
  55         { fail "get address of ${var} (unknown output)" }
  56     timeout
  57         { fail "get address of ${var} (timeout)" }
  58   }
  59   return ""
  60 }
  61
  62
  63
  64 gdb_exit
  65 gdb_start
  66 gdb_reinitialize_dir $srcdir/$subdir
  67
  68 # Load the object file.
  69 gdb_test "add-symbol-file ${binfile} 0" \
  70         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
  71         "add-symbol-file ${testfile}.o 0" \
  72         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
  73         "y"
  74
  75 # Print the addresses of static variables.
  76 set static_foo_addr [get_var_address static_foo]
  77 set static_bar_addr [get_var_address static_bar]
  78
  79 # Make sure they have different addresses.
  80 if { "${static_foo_addr}" == "${static_bar_addr}" } {
  81   fail "static variables have different addresses"
  82 } else {
  83   pass "static variables have different addresses"
  84 }
  85
  86 # Print the addresses of global variables.
  87 set global_foo_addr [get_var_address global_foo]
  88 set global_bar_addr [get_var_address global_bar]
  89
  90 # Make sure they have different addresses.
  91 if { "${global_foo_addr}" == "${global_bar_addr}" } {
  92   fail "global variables have different addresses"
  93 } else {
  94   pass "global variables have different addresses"
  95 }
  96
  97 # Print the addresses of functions.
  98 set function_foo_addr [get_var_address function_foo]
  99 set function_bar_addr [get_var_address function_bar]
 100
 101 # Make sure they have different addresses.
 102 if { "${function_foo_addr}" == "${function_bar_addr}" } {
 103   fail "functions have different addresses"
 104 } else {
 105   pass "functions have different addresses"
 106 }
 107
 108 # Now use a variable as an offset to add-symbol-file, and check that
 109 # the functions' addresses change.
 110
 111 gdb_exit
 112 gdb_start
 113 gdb_reinitialize_dir $srcdir/$subdir
 114
 115 gdb_test "set \$offset = 0x10000" ""
 116
 117 # Load the object file.
 118 gdb_test "add-symbol-file ${binfile} \$offset" \
 119         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
 120         "add-symbol-file ${testfile}.o \$offset" \
 121         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
 122         "y"
 123
 124 # Print the addresses of functions.
 125 set new_function_foo_addr [get_var_address function_foo]
 126
 127 # Make sure they have different addresses.
 128 if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
 129   fail "function foo has a different address"
 130 } else {
 131   pass "function foo has a different address"
 132 }
 133
 134 # Now try loading the object as an exec-file; we should be able to print
 135 # the values of variables after we do this.
 136
 137 gdb_exit
 138 gdb_start
 139 gdb_reinitialize_dir $srcdir/$subdir
 140 gdb_file_cmd ${binfile}
 141
 142 # Check the values of the variables.
 143 gdb_test "print static_foo" "\\\$$decimal = 1"
 144 gdb_test "print static_bar" "\\\$$decimal = 2"
 145 gdb_test "print global_foo" "\\\$$decimal = 3"
 146 gdb_test "print global_bar" "\\\$$decimal = 4"