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jeremybenn |
# Copyright 2002, 2003, 2005, 2007, 2008, 2009, 2010
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# Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see . */
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# relocate.exp -- Expect script to test loading symbols from unrelocated
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# object files.
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if $tracelevel then {
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strace $tracelevel
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}
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set testfile relocate
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}.o
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remote_exec build "rm -f ${binfile}"
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {
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untested relocate.exp
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return -1
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}
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proc get_var_address { var } {
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global gdb_prompt hex
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# Match output like:
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# $1 = (int *) 0x0
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# $5 = (int (*)()) 0
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# $6 = (int (*)()) 0x24
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gdb_test_multiple "print &${var}" "get address of ${var}" {
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-re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $" {
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pass "get address of ${var}"
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if { $expect_out(1,string) == "0" } {
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return "0x0"
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} else {
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return $expect_out(1,string)
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}
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}
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}
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return ""
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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# Load the object file.
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gdb_test "add-symbol-file ${binfile} 0" \
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"Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
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"add-symbol-file ${testfile}.o 0" \
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"add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
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"y"
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# Print the addresses of static variables.
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set static_foo_addr [get_var_address static_foo]
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set static_bar_addr [get_var_address static_bar]
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# Make sure they have different addresses.
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if { "${static_foo_addr}" == "${static_bar_addr}" } {
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fail "static variables have different addresses"
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} else {
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pass "static variables have different addresses"
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}
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# Print the addresses of global variables.
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set global_foo_addr [get_var_address global_foo]
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set global_bar_addr [get_var_address global_bar]
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# Make sure they have different addresses.
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if { "${global_foo_addr}" == "${global_bar_addr}" } {
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fail "global variables have different addresses"
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} else {
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pass "global variables have different addresses"
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}
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# Print the addresses of functions.
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set function_foo_addr [get_var_address function_foo]
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set function_bar_addr [get_var_address function_bar]
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# Make sure they have different addresses.
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if { "${function_foo_addr}" == "${function_bar_addr}" } {
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fail "functions have different addresses"
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} else {
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pass "functions have different addresses"
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}
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# Now use a variable as an offset to add-symbol-file, and check that
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# the functions' addresses change.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_test_no_output "set \$offset = 0x10000"
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# Load the object file.
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gdb_test "add-symbol-file ${binfile} \$offset" \
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"Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
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"add-symbol-file ${testfile}.o \$offset" \
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"add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
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"y"
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# Print the addresses of functions.
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set new_function_foo_addr [get_var_address function_foo]
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# Make sure they have different addresses.
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if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
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fail "function foo has a different address"
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} else {
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pass "function foo has a different address"
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}
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# Now try loading the object as an exec-file; we should be able to print
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# the values of variables after we do this.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_file_cmd ${binfile}
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# Check the values of the variables.
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gdb_test "print static_foo" "\\\$$decimal = 1"
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gdb_test "print static_bar" "\\\$$decimal = 2"
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gdb_test "print global_foo" "\\\$$decimal = 3"
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gdb_test "print global_bar" "\\\$$decimal = 4"
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