gdb/testsuite/gdb.reverse/solib-precsave.exp

   1 # Copyright 2009-2017 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 # This file is part of the GDB testsuite.  It tests precord debugging
  17 # with shared libraries and a logfile.
  18
  19 # This test suitable only for process record-replay
  20 if ![supports_process_record] {
  21     return
  22 }
  23 if {[skip_shlib_tests]} {
  24     return
  25 }
  26
  27 standard_testfile solib-reverse.c
  28 set precsave [standard_output_file solib.precsave]
  29 set lib1file "shr1"
  30 set lib1src  ${lib1file}.c
  31 set library1 [standard_output_file ${lib1file}.sl]
  32 set lib2file "shr2"
  33 set lib2src  ${lib2file}.c
  34 set library2 [standard_output_file ${lib2file}.sl]
  35
  36 if [get_compiler_info] {
  37     return -1
  38 }
  39
  40 # Compile the first without debug info so that
  41 # stepping and reverse stepping doesn't end up inside them.
  42 if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib1src} ${library1} ""] != "" } {
  43     untested "failed to compile shared library 1"
  44     return -1
  45 }
  46
  47 if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib2src} ${library2} "debug"] != "" } {
  48     untested "failed to compile shared library 2"
  49     return -1
  50 }
  51
  52 set exec_opts [list debug shlib=${library1} shlib=${library2}]
  53
  54 # Attempt to prevent -Wl,-z,relro which may happen by default with some
  55 # toolchain configurations.  Due to PR corefiles/11804 GDB will then produce
  56 # invalid core file.
  57
  58 if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable \
  59                      [concat $exec_opts additional_flags=-Wl,-z,norelro]] != ""
  60      && [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $exec_opts] != "" } {
  61     untested "failed to compile"
  62     return -1
  63 }
  64
  65 # Start with a fresh gdb.
  66
  67 gdb_exit
  68 gdb_start
  69
  70 # Note: The test previously did "set debug-file-directory" to (try to)
  71 # ensure the debug info for the dynamic loader and libc weren't found.
  72 # This doesn't work if the debug info is in the .debug subdirectory.
  73 # Avoiding debug info for system libraries is not germaine to this test
  74 # and is no longer attempted.  Instead, the test does not make assumptions
  75 # about whether the debug info is present or not.
  76
  77 gdb_reinitialize_dir $srcdir/$subdir
  78 gdb_load ${binfile}
  79 gdb_load_shlib $library1
  80 gdb_load_shlib $library2
  81
  82 runto main
  83
  84 if [supports_process_record] {
  85     # Activate process record/replay
  86     gdb_test_no_output "record" "turn on process record"
  87 }
  88
  89 set end_of_main [gdb_get_line_number "end of main" ]
  90 gdb_test "break $end_of_main" \
  91     "Breakpoint $decimal at .*$srcfile, line $end_of_main\." \
  92     "breakpoint at end of main"
  93
  94 gdb_test "continue" "Breakpoint .* end of main .*" "run to end of main"
  95
  96 gdb_test "record save $precsave" \
  97     "Saved core file $precsave with execution log\."  \
  98     "save process recfile"
  99
 100 gdb_test "kill" "" "kill process, prepare to debug log file" \
 101     "Kill the program being debugged\\? \\(y or n\\) " "y"
 102
 103 gdb_test "record restore $precsave" \
 104     "Restored records from core file .*" \
 105     "reload core file"
 106
 107 #
 108 # Test reverse-step over undebuggable solib functions.
 109 #
 110
 111 # Run forward past some solib function calls.
 112
 113 set end_part_one [gdb_get_line_number " end part one" "$srcfile"]
 114 set end_part_two [gdb_get_line_number " end part two" "$srcfile"]
 115 gdb_test "until $end_part_one" " end part one.*" "run until end part one"
 116
 117 gdb_test "reverse-step" " shr1 three .*" "reverse-step third shr1"
 118 gdb_test "reverse-step" " shr1 two .*"   "reverse-step second shr1"
 119 gdb_test "reverse-step" " shr1 one .*"   "reverse-step first shr1"
 120
 121 gdb_test "reverse-step" " generic statement.*" "reverse-step generic"
 122
 123
 124 #
 125 # Test reverse-next over undebuggable solib functions.
 126 #
 127
 128 # Run forward again...
 129
 130 gdb_test "until $end_part_one" " end part one.*" "forward to end part one"
 131
 132 gdb_test "reverse-next" " shr1 three .*" "reverse-next third shr1"
 133 gdb_test "reverse-next" " shr1 two .*"   "reverse-next second shr1"
 134 gdb_test "reverse-next" " shr1 one .*"   "reverse-next first shr1"
 135
 136 gdb_test "reverse-next" " generic statement.*" "reverse-next generic"
 137
 138
 139 #
 140 # Test reverse-step into debuggable solib function
 141 #
 142
 143 gdb_test "reverse-step" "${lib2src}.*" "reverse-step into solib function one"
 144 gdb_test "reverse-step" "return 2.x.*" "reverse-step within solib function one"
 145 gdb_test "reverse-step" " middle part two.*" "reverse-step back to main one"
 146
 147 gdb_test "reverse-step" "${lib2src}.*" "reverse-step into solib function two"
 148 gdb_test "reverse-step" "return 2.x.*" "reverse-step within solib function two"
 149 gdb_test "reverse-step" " begin part two.*" "reverse-step back to main two"
 150
 151 #
 152 # Test reverse-next over debuggable solib function
 153 #
 154
 155 gdb_test "until $end_part_two" " end part two.*" "run until end part two"
 156
 157 gdb_test "reverse-next" " middle part two.*" "reverse-next over solib function one"
 158 gdb_test "reverse-next" " begin part two.*" "reverse-next over solib function two"