gdb/testsuite/gdb.base/relocate.exp

   1 # Copyright 2002-2018 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     set word [lindex $x [expr [llength $x]-1]]
  35     gdb_test "add-symbol-file ${binfile} 0 $x" \
  36         "Unrecognized argument \"$word\"" \
  37         "add-symbol-file: unknown option $word"
  38 }
  39
  40 # Check that we can pass parameters using any position in the command
  41 # line.
  42 set test "add-symbol-file positionless -readnow"
  43 gdb_test_multiple "add-symbol-file -readnow $binfile 0x100 -s .bss 0x3" $test {
  44     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\.bss_addr = 0x3\r\n\\(y or n\\) " {
  45         gdb_test "n" "Not confirmed\." $test
  46     }
  47 }
  48 # When we use -s as the first argument, the section will be printed
  49 # first as well.
  50 set test "add-symbol-file positionless -s"
  51 gdb_test_multiple "add-symbol-file -s .bss 0x3 -readnow $binfile 0x100" $test {
  52     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\.bss_addr = 0x3\r\n\\(y or n\\) " {
  53         gdb_test "n" "Not confirmed\." $test
  54     }
  55 }
  56 set test "add-symbol-file positionless -s, no -readnow"
  57 gdb_test_multiple "add-symbol-file $binfile 0x100 -s .bss 0x3" $test {
  58     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\.bss_addr = 0x3\r\n\\(y or n\\) " {
  59         gdb_test "n" "Not confirmed\." $test
  60     }
  61 }
  62 # Check that passing "-s .text", no matter the position, always has
  63 # the same result.
  64 set test "add-symbol-file different -s .text, after file"
  65 gdb_test_multiple "add-symbol-file $binfile 0x100 -s .text 0x200" $test {
  66     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\.text_addr = 0x200\r\n\\(y or n\\) " {
  67         gdb_test "n" "Not confirmed\." $test
  68     }
  69 }
  70 set test "add-symbol-file different -s .text, before file"
  71 gdb_test_multiple "add-symbol-file -s .text 0x200 $binfile 0x100" $test {
  72     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\.text_addr = 0x200\r\n\\(y or n\\) " {
  73         gdb_test "n" "Not confirmed\." $test
  74     }
  75 }
  76 # Test that passing "--" disables option processing.
  77 gdb_test "add-symbol-file -- $binfile 0x100 -s .bss 0x3" \
  78     "Unrecognized argument \"-s\"" \
  79     "add-symbol-file with -- disables option processing"
  80 set test "add-symbol-file with -- disables option processing, non-existent filename"
  81 gdb_test_multiple "add-symbol-file -- -non-existent-file 0x100" $test {
  82     -re "add symbol table from file \"-non-existent-file\" at\r\n\t\.text_addr = 0x100\r\n\\(y or n\\) " {
  83         gdb_test "y" "-non-existent-file: No such file or directory\." $test
  84     }
  85 }
  86 # Test that passing the wrong number of arguments to '-s' leads to an
  87 # error.
  88 gdb_test "add-symbol-file $binfile -s" \
  89     "Missing section name after \"-s\"" \
  90     "add-symbol-file with -s without section name"
  91 gdb_test "add-symbol-file $binfile -s .bss" \
  92     "Missing section address after \"-s\"" \
  93     "add-symbol-file with -s without section address"
  94 # Test that '-s' accepts section names with '-'
  95 set test "add-symbol-file with -s using section name starting with dash"
  96 gdb_test_multiple "add-symbol-file -s -section-name 0x200 $binfile 0x100" $test {
  97     -re "add symbol table from file \"${binfile}\" at\r\n\t\.text_addr = 0x100\r\n\t\-section-name_addr = 0x200\r\n\\(y or n\\) " {
  98         gdb_test "n" "Not confirmed\." $test
  99     }
 100 }
 101 # Since we're here, might as well test the 'symbol-file' command and
 102 # if its arguments can also be passed at any position.
 103 gdb_test "symbol-file -readnow $binfile" \
 104     "Reading symbols from ${binfile}\.\.\.expanding to full symbols\.\.\.done\." \
 105     "symbol-file with -readnow first"
 106 clean_restart
 107 gdb_test "symbol-file $binfile -readnow" \
 108     "Reading symbols from ${binfile}\.\.\.expanding to full symbols\.\.\.done\." \
 109     "symbol-file with -readnow second"
 110 gdb_test "symbol-file -readnow" \
 111     "no symbol file name was specified" \
 112     "symbol-file without filename"
 113 gdb_test "symbol-file -- -non-existent-file" \
 114     "-non-existent-file: No such file or directory\." \
 115     "symbol-file with -- disables option processing"
 116 clean_restart
 117 gdb_test "symbol-file -readnow -- $binfile" \
 118     "Reading symbols from ${binfile}\.\.\.expanding to full symbols\.\.\.done\." \
 119     "symbol-file with -- and -readnow"
 120 gdb_test "symbol-file -- $binfile -readnow" \
 121     "Unrecognized argument \"-readnow\"" \
 122     "symbol-file with -- and -readnow, invalid option"
 123
 124 clean_restart
 125
 126 gdb_test "add-symbol-file ${binfile} 0 -s" \
 127     "Missing section name after .-s." \
 128     "add-symbol-file bare -s"
 129 gdb_test "add-symbol-file ${binfile} 0 -s .whatever" \
 130     "Missing section address after .-s." \
 131     "add-symbol-file missing address"
 132
 133 # Load the object file.
 134 gdb_test "add-symbol-file ${binfile} 0" \
 135         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
 136         "add-symbol-file ${testfile}.o 0" \
 137         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
 138         "y"
 139
 140 # Print the addresses of static variables.
 141 set static_foo_addr [get_var_address static_foo]
 142 set static_bar_addr [get_var_address static_bar]
 143
 144 # Make sure they have different addresses.
 145 if { "${static_foo_addr}" == "${static_bar_addr}" } {
 146   fail "static variables have different addresses"
 147 } else {
 148   pass "static variables have different addresses"
 149 }
 150
 151 # Print the addresses of global variables.
 152 set global_foo_addr [get_var_address global_foo]
 153 set global_bar_addr [get_var_address global_bar]
 154
 155 # Make sure they have different addresses.
 156 if { "${global_foo_addr}" == "${global_bar_addr}" } {
 157   fail "global variables have different addresses"
 158 } else {
 159   pass "global variables have different addresses"
 160 }
 161
 162 # Print the addresses of functions.
 163 set function_foo_addr [get_var_address function_foo]
 164 set function_bar_addr [get_var_address function_bar]
 165
 166 # Make sure they have different addresses.
 167 if { "${function_foo_addr}" == "${function_bar_addr}" } {
 168   fail "functions have different addresses"
 169 } else {
 170   pass "functions have different addresses"
 171 }
 172
 173 # Now use a variable as an offset to add-symbol-file, and check that
 174 # the functions' addresses change.
 175
 176 gdb_exit
 177 gdb_start
 178 gdb_reinitialize_dir $srcdir/$subdir
 179
 180 gdb_test_no_output "set \$offset = 0x10000"
 181
 182 # Load the object file.
 183 gdb_test "add-symbol-file ${binfile} \$offset" \
 184         "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
 185         "add-symbol-file ${testfile}.o \$offset" \
 186         "add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
 187         "y"
 188
 189 # Print the addresses of functions.
 190 set new_function_foo_addr [get_var_address function_foo]
 191
 192 # Make sure they have different addresses.
 193 if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
 194   fail "function foo has a different address"
 195 } else {
 196   pass "function foo has a different address"
 197 }
 198
 199 # Load the object using symbol-file with an offset and check that
 200 # all addresses are moved by that offset.
 201
 202 set offset 0x10000
 203 clean_restart
 204 gdb_test "symbol-file -o $offset $binfile" \
 205     "Reading symbols from ${binfile}\.\.\.done\." \
 206     "symbol-file with offset"
 207
 208 # Make sure the address of a static variable is moved by offset.
 209 set new_static_foo_addr [get_var_address static_foo]
 210 gdb_assert {${new_static_foo_addr} == ${static_foo_addr} + $offset} \
 211     "static variable foo is moved by offset"
 212
 213 # Make sure the address of a global variable is moved by offset.
 214 set new_global_foo_addr [get_var_address global_foo]
 215 gdb_assert {${new_global_foo_addr} == ${global_foo_addr} + $offset} \
 216     "global variable foo is moved by offset"
 217
 218 # Make sure the address of a function is moved by offset.
 219 set new_function_foo_addr [get_var_address function_foo]
 220 gdb_assert {${new_function_foo_addr} == ${function_foo_addr} + $offset} \
 221     "function foo is moved by offset"
 222
 223 # Now try loading the object as an exec-file; we should be able to print
 224 # the values of variables after we do this.
 225
 226 gdb_exit
 227 gdb_start
 228 gdb_reinitialize_dir $srcdir/$subdir
 229 gdb_file_cmd ${binfile}
 230
 231 # Check the values of the variables.
 232 gdb_test "print static_foo" "\\\$$decimal = 1"
 233 gdb_test "print static_bar" "\\\$$decimal = 2"
 234 gdb_test "print global_foo" "\\\$$decimal = 3"
 235 gdb_test "print global_bar" "\\\$$decimal = 4"