gdb/testsuite/gdb.base/relocate.exp

   1 # Copyright 2002-2017 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 # relocate.exp -- Expect script to test loading symbols from unrelocated
  17 #                 object files.
  18
  19 standard_testfile .c
  20 append binfile .o
  21
  22 remote_exec build "rm -f ${binfile}"
  23 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {
  24      untested "failed to compile"
  25      return -1
  26 }
  27
  28 gdb_exit
  29 gdb_start
  30 gdb_reinitialize_dir $srcdir/$subdir
  31
  32 #Check that invalid options are rejected.
  33 foreach x {"-raednow" "readnow" "foo" "-readnow s"} {
  34     gdb_test "add-symbol-file ${binfile} 0 $x" \
  35         "USAGE: add-symbol-file <filename> <textaddress>.*-readnow.*-s <secname> <addr>.*" \
  36         "add-symbol-file: unknown option $x"
  37 }
  38
  39 # Load the object file.
  40 gdb_test "add-symbol-file ${binfile} 0" \
  41         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
  42         "add-symbol-file ${testfile}.o 0" \
  43         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
  44         "y"
  45
  46 # Print the addresses of static variables.
  47 set static_foo_addr [get_var_address static_foo]
  48 set static_bar_addr [get_var_address static_bar]
  49
  50 # Make sure they have different addresses.
  51 if { "${static_foo_addr}" == "${static_bar_addr}" } {
  52   fail "static variables have different addresses"
  53 } else {
  54   pass "static variables have different addresses"
  55 }
  56
  57 # Print the addresses of global variables.
  58 set global_foo_addr [get_var_address global_foo]
  59 set global_bar_addr [get_var_address global_bar]
  60
  61 # Make sure they have different addresses.
  62 if { "${global_foo_addr}" == "${global_bar_addr}" } {
  63   fail "global variables have different addresses"
  64 } else {
  65   pass "global variables have different addresses"
  66 }
  67
  68 # Print the addresses of functions.
  69 set function_foo_addr [get_var_address function_foo]
  70 set function_bar_addr [get_var_address function_bar]
  71
  72 # Make sure they have different addresses.
  73 if { "${function_foo_addr}" == "${function_bar_addr}" } {
  74   fail "functions have different addresses"
  75 } else {
  76   pass "functions have different addresses"
  77 }
  78
  79 # Now use a variable as an offset to add-symbol-file, and check that
  80 # the functions' addresses change.
  81
  82 gdb_exit
  83 gdb_start
  84 gdb_reinitialize_dir $srcdir/$subdir
  85
  86 gdb_test_no_output "set \$offset = 0x10000"
  87
  88 # Load the object file.
  89 gdb_test "add-symbol-file ${binfile} \$offset" \
  90         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
  91         "add-symbol-file ${testfile}.o \$offset" \
  92         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
  93         "y"
  94
  95 # Print the addresses of functions.
  96 set new_function_foo_addr [get_var_address function_foo]
  97
  98 # Make sure they have different addresses.
  99 if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
 100   fail "function foo has a different address"
 101 } else {
 102   pass "function foo has a different address"
 103 }
 104
 105 # Now try loading the object as an exec-file; we should be able to print
 106 # the values of variables after we do this.
 107
 108 gdb_exit
 109 gdb_start
 110 gdb_reinitialize_dir $srcdir/$subdir
 111 gdb_file_cmd ${binfile}
 112
 113 # Check the values of the variables.
 114 gdb_test "print static_foo" "\\\$$decimal = 1"
 115 gdb_test "print static_bar" "\\\$$decimal = 2"
 116 gdb_test "print global_foo" "\\\$$decimal = 3"
 117 gdb_test "print global_bar" "\\\$$decimal = 4"