gdb/testsuite/gdb.base/break-probes.exp

   1 # Copyright 2012-2019 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 if { [skip_shlib_tests] } {
  17     return 0
  18 }
  19
  20 standard_testfile
  21
  22 set libname $testfile-solib
  23 set srcfile_lib $srcdir/$subdir/$libname.c
  24 set binfile_lib [standard_output_file $libname.so]
  25
  26 if { [istarget "*bsd*"] } {
  27   set normal_bp "r_debug_state"
  28 } else {
  29   set normal_bp "_dl_debug_state"
  30 }
  31 set probes_bp "dl_main"
  32
  33 if { [gdb_compile_shlib $srcfile_lib $binfile_lib \
  34           [list additional_flags=-fPIC]] != "" } {
  35     untested "failed to compile shared library"
  36     return -1
  37 }
  38
  39 if { [prepare_for_testing "failed to prepare" $testfile $srcfile \
  40           [list debug shlib_load additional_flags=-DSHLIB_NAME=\"$binfile_lib\"]] } {
  41     return -1
  42 }
  43
  44 # Enable stop-on-solib-events
  45 gdb_test_no_output "set stop-on-solib-events 1"
  46
  47 # Start the inferior and run to the first stop
  48 gdb_run_cmd
  49 gdb_test "" ".*Stopped due to shared library event.*"
  50
  51 # XFAIL if we are not using probes
  52 set test "ensure using probes"
  53 set using_probes 0
  54 gdb_test_multiple "bt" $test {
  55     -re "#0 +\[^\r\n\]*\\m(__GI_)?$normal_bp\\M.*$gdb_prompt $" {
  56         untested "probes not present on this system"
  57     }
  58     -re "#0 +\[^\r\n\]*\\m(__GI_)?$probes_bp\\M.*$gdb_prompt $" {
  59         pass $test
  60         set using_probes 1
  61     }
  62 }
  63
  64 if { $using_probes } {
  65     set sysroot ""
  66     set test "show sysroot"
  67     gdb_test_multiple $test $test {
  68         -re "The current system root is \"(.*)\"\..*${gdb_prompt} $" {
  69             set sysroot $expect_out(1,string)
  70         }
  71     }
  72
  73     # GDB strips "target:" from the start of filenames
  74     # when operating on the local filesystem
  75     regsub "^target:" "$sysroot" "(target:)?" sysroot
  76
  77     # Run til it loads our library
  78     set test "run til our library loads"
  79     set not_loaded_library 1
  80     while { $not_loaded_library } {
  81         set not_loaded_library 0
  82         gdb_test_multiple "c" $test {
  83             -re "Inferior loaded $sysroot$binfile_lib\\M.*$gdb_prompt $" {
  84                 pass $test
  85             }
  86             -re "Stopped due to shared library event\\M.*$gdb_prompt $" {
  87                 set not_loaded_library 1
  88             }
  89         }
  90     }
  91
  92     # Call something to ensure that relocation occurred
  93     gdb_test "call (int) foo(23)" "\\\$.* = 31.*\\\M.*"
  94 }