gdb/testsuite/gdb.base/dso2dso.exp

   1 # Copyright 2015-2016 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 # The purpose of this testcase is to verify that we can "next" over
  17 # a call to a function provided by one shared library made from another
  18 # shared library, and that GDB stops at the expected location. In this
  19 # case, the call is made from sub1 (provided by libdso1) and we are
  20 # calling sub2 (provided by libdso2).
  21 #
  22 # Note that, while this is not the main purpose of this testcase, it
  23 # also happens to exercise an issue with displaced stepping on amd64
  24 # when libdso1 is mapped at an address greater than 0xffffffff.
  25
  26 if { [skip_shlib_tests] } {
  27     return 0
  28 }
  29
  30 standard_testfile
  31
  32 set output_dir [standard_output_file {}]
  33
  34 set libdso2 $testfile-dso2
  35 set srcfile_libdso2 $srcdir/$subdir/$libdso2.c
  36 set binfile_libdso2 [standard_output_file $libdso2.so]
  37
  38 set libdso1 $testfile-dso1
  39 set srcfile_libdso1 $srcdir/$subdir/$libdso1.c
  40 set binfile_libdso1 [standard_output_file $libdso1.so]
  41
  42 if { [gdb_compile_shlib $srcfile_libdso2 $binfile_libdso2 \
  43         [list debug additional_flags=-fPIC]] != "" } {
  44   untested "failed to compile shared library 2"
  45   return -1
  46 }
  47
  48 if { [gdb_compile_shlib $srcfile_libdso1 $binfile_libdso1 \
  49         [list debug additional_flags=-fPIC]] != "" } {
  50   untested "failed to compile shared library 1"
  51   return -1
  52 }
  53
  54 if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable \
  55         [list debug shlib=$binfile_libdso2 shlib=$binfile_libdso1]] != "" } {
  56   return -1
  57 }
  58
  59 clean_restart $binfile
  60 gdb_load_shlib $binfile_libdso2
  61 gdb_load_shlib $binfile_libdso1
  62
  63 if { ![runto_main] } {
  64   return -1
  65 }
  66
  67 set bp_location [gdb_get_line_number "STOP HERE" [file tail $srcfile_libdso1]]
  68 gdb_breakpoint ${libdso1}.c:${bp_location}
  69
  70 gdb_continue_to_breakpoint "at call to sub2" \
  71     ".*sub2 ().*"
  72
  73 gdb_test "next" \
  74     ".*return 5;.*" \
  75     "next over call to sub2"