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# Copyright 2002, 2003, 2005, 2007, 2008 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see .  */

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# relocate.exp -- Expect script to test loading symbols from unrelocated

#                 object files.

if $tracelevel then {

    strace $tracelevel

}

set testfile relocate

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}.o

remote_exec build "rm -f ${binfile}"

if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {

     untested relocate.exp

     return -1

}

proc get_var_address { var } {

  global gdb_prompt hex

  send_gdb "print &${var}\n"

  # Match output like:

  # $1 = (int *) 0x0

  # $5 = (int (*)()) 0

  # $6 = (int (*)()) 0x24 

  gdb_expect {

    -re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"

        {

          pass "get address of ${var}"

          if { $expect_out(1,string) == "0" } {

            return "0x0"

          } else {

            return $expect_out(1,string)

          }

        }

    -re "${gdb_prompt} $"

        { fail "get address of ${var} (unknown output)" }

    timeout

        { fail "get address of ${var} (timeout)" }

  }

  return ""

}

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

# Load the object file.

gdb_test "add-symbol-file ${binfile} 0" \

        "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \

        "add-symbol-file ${testfile}.o 0" \

        "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \

        "y"

# Print the addresses of static variables.

set static_foo_addr [get_var_address static_foo]

set static_bar_addr [get_var_address static_bar]

# Make sure they have different addresses.

if { "${static_foo_addr}" == "${static_bar_addr}" } {

  fail "static variables have different addresses"

} else {

  pass "static variables have different addresses"

}

# Print the addresses of global variables.

set global_foo_addr [get_var_address global_foo]

set global_bar_addr [get_var_address global_bar]

# Make sure they have different addresses.

if { "${global_foo_addr}" == "${global_bar_addr}" } {

  fail "global variables have different addresses"

} else {

  pass "global variables have different addresses"

}

# Print the addresses of functions.

set function_foo_addr [get_var_address function_foo]

set function_bar_addr [get_var_address function_bar]

# Make sure they have different addresses.

if { "${function_foo_addr}" == "${function_bar_addr}" } {

  fail "functions have different addresses"

} else {

  pass "functions have different addresses"

}

# Now use a variable as an offset to add-symbol-file, and check that

# the functions' addresses change.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_test "set \$offset = 0x10000" ""

# Load the object file.

gdb_test "add-symbol-file ${binfile} \$offset" \

        "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \

        "add-symbol-file ${testfile}.o \$offset" \

        "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \

        "y"

# Print the addresses of functions.

set new_function_foo_addr [get_var_address function_foo]

# Make sure they have different addresses.

if { "${function_foo_addr}" == "${new_function_foo_addr}" } {

  fail "function foo has a different address"

} else {

  pass "function foo has a different address"

}

# Now try loading the object as an exec-file; we should be able to print

# the values of variables after we do this.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_file_cmd ${binfile}

# Check the values of the variables.

gdb_test "print static_foo" "\\\$$decimal = 1"

gdb_test "print static_bar" "\\\$$decimal = 2"

gdb_test "print global_foo" "\\\$$decimal = 3"

gdb_test "print global_bar" "\\\$$decimal = 4"