gdb/testsuite/gdb.base/relocate.exp

   1 # Copyright 2002-2016 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 relocate.exp
  25      return -1
  26 }
  27
  28 proc get_var_address { var } {
  29     global gdb_prompt hex
  30
  31     # Match output like:
  32     # $1 = (int *) 0x0
  33     # $5 = (int (*)()) 0
  34     # $6 = (int (*)()) 0x24 <function_bar>
  35
  36     gdb_test_multiple "print &${var}" "get address of ${var}" {
  37         -re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $" {
  38             pass "get address of ${var}"
  39             if { $expect_out(1,string) == "0" } {
  40                 return "0x0"
  41             } else {
  42                 return $expect_out(1,string)
  43             }
  44         }
  45     }
  46     return ""
  47 }
  48
  49
  50
  51 gdb_exit
  52 gdb_start
  53 gdb_reinitialize_dir $srcdir/$subdir
  54
  55 #Check that invalid options are rejected.
  56 foreach x {"-raednow" "readnow" "foo" "-readnow s"} {
  57     gdb_test "add-symbol-file ${binfile} 0 $x" \
  58         "USAGE: add-symbol-file <filename> <textaddress>.*-readnow.*-s <secname> <addr>.*" \
  59         "add-symbol-file: unknown option $x"
  60 }
  61
  62 # Load the object file.
  63 gdb_test "add-symbol-file ${binfile} 0" \
  64         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
  65         "add-symbol-file ${testfile}.o 0" \
  66         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
  67         "y"
  68
  69 # Print the addresses of static variables.
  70 set static_foo_addr [get_var_address static_foo]
  71 set static_bar_addr [get_var_address static_bar]
  72
  73 # Make sure they have different addresses.
  74 if { "${static_foo_addr}" == "${static_bar_addr}" } {
  75   fail "static variables have different addresses"
  76 } else {
  77   pass "static variables have different addresses"
  78 }
  79
  80 # Print the addresses of global variables.
  81 set global_foo_addr [get_var_address global_foo]
  82 set global_bar_addr [get_var_address global_bar]
  83
  84 # Make sure they have different addresses.
  85 if { "${global_foo_addr}" == "${global_bar_addr}" } {
  86   fail "global variables have different addresses"
  87 } else {
  88   pass "global variables have different addresses"
  89 }
  90
  91 # Print the addresses of functions.
  92 set function_foo_addr [get_var_address function_foo]
  93 set function_bar_addr [get_var_address function_bar]
  94
  95 # Make sure they have different addresses.
  96 if { "${function_foo_addr}" == "${function_bar_addr}" } {
  97   fail "functions have different addresses"
  98 } else {
  99   pass "functions have different addresses"
 100 }
 101
 102 # Now use a variable as an offset to add-symbol-file, and check that
 103 # the functions' addresses change.
 104
 105 gdb_exit
 106 gdb_start
 107 gdb_reinitialize_dir $srcdir/$subdir
 108
 109 gdb_test_no_output "set \$offset = 0x10000"
 110
 111 # Load the object file.
 112 gdb_test "add-symbol-file ${binfile} \$offset" \
 113         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
 114         "add-symbol-file ${testfile}.o \$offset" \
 115         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
 116         "y"
 117
 118 # Print the addresses of functions.
 119 set new_function_foo_addr [get_var_address function_foo]
 120
 121 # Make sure they have different addresses.
 122 if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
 123   fail "function foo has a different address"
 124 } else {
 125   pass "function foo has a different address"
 126 }
 127
 128 # Now try loading the object as an exec-file; we should be able to print
 129 # the values of variables after we do this.
 130
 131 gdb_exit
 132 gdb_start
 133 gdb_reinitialize_dir $srcdir/$subdir
 134 gdb_file_cmd ${binfile}
 135
 136 # Check the values of the variables.
 137 gdb_test "print static_foo" "\\\$$decimal = 1"
 138 gdb_test "print static_bar" "\\\$$decimal = 2"
 139 gdb_test "print global_foo" "\\\$$decimal = 3"
 140 gdb_test "print global_bar" "\\\$$decimal = 4"