gdb/testsuite/gdb.base/reread.exp

   1 # Copyright 1998-2017 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 set prototypes 1
  17
  18 # build the first test case
  19
  20 set testfile1 "reread1"
  21 set srcfile1 ${testfile1}.c
  22 # Cygwin needs $EXEEXT.
  23 set binfile1 [standard_output_file ${testfile1}$EXEEXT]
  24
  25 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile1}" executable {debug nowarnings}] != "" } {
  26     untested "failed to compile first testcase"
  27     return -1
  28 }
  29
  30 # build the second test case
  31
  32 set testfile2 "reread2"
  33 set srcfile2 ${testfile2}.c
  34 set binfile2 [standard_output_file ${testfile2}$EXEEXT]
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug nowarnings}] != ""
  37       && [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug nowarnings additional_flags=-DNO_SECTIONS}] != ""} {
  38     untested "failed to compile second testcase"
  39     return -1
  40 }
  41
  42 # Start with a fresh gdb.
  43
  44 set testfile "reread"
  45 set binfile [standard_output_file ${testfile}$EXEEXT]
  46
  47 gdb_start
  48 gdb_reinitialize_dir $srcdir/$subdir
  49
  50 # Load the first executable.
  51
  52 gdb_rename_execfile ${binfile1} ${binfile}
  53 gdb_load ${binfile}
  54
  55 # Set a breakpoint at foo
  56
  57 gdb_test "break foo" \
  58     "Breakpoint.*at.* file .*$srcfile1, line 14.*" \
  59     "breakpoint foo in first file"
  60
  61
  62 # Run, should see "Breakpoint 1, foo () at hello1.c:14"
  63
  64 gdb_run_cmd
  65 gdb_test "" "Breakpoint.* foo .* at .*$srcfile1:14.*" "run to foo()"
  66
  67 # Restore first executable to its original name, and move
  68 # second executable into its place.  Ensure that the new
  69 # executable is at least a second newer than the old.
  70
  71 gdb_rename_execfile ${binfile} ${binfile1}
  72 gdb_rename_execfile ${binfile2} ${binfile}
  73 gdb_test "shell sleep 1" ".*" ""
  74 gdb_touch_execfile ${binfile}
  75
  76 # Run a second time; GDB should detect that the executable has changed
  77 # and reset the breakpoints correctly.
  78 # Should see "Breakpoint 1, foo () at reread2.c:9"
  79
  80 set test "run to foo() second time"
  81 if [is_remote target] {
  82     unsupported $test
  83 } else {
  84     gdb_run_cmd
  85     gdb_test "" "Breakpoint.* foo .* at .*:9.*" $test
  86 }
  87
  88
  89 ### Second pass: verify that GDB checks the executable file's
  90 ### timestamp when the program is *restarted*, not just when it exits.
  91
  92 if [is_remote target] {
  93     unsupported "second pass: GDB should check for changes before running"
  94 } else {
  95
  96     # Put the older executable back in place.
  97     gdb_rename_execfile ${binfile} ${binfile2}
  98     gdb_rename_execfile ${binfile1} ${binfile}
  99
 100     # Restart GDB entirely.
 101     clean_restart ${binfile}
 102
 103     # Set a breakpoint on foo and run to it.
 104     gdb_test "break foo" \
 105             "Breakpoint.*at.* file .*$srcfile1, line 14.*" \
 106             "second pass: breakpoint foo in first file"
 107     gdb_run_cmd
 108     gdb_test "" "Breakpoint.* foo .* at .*$srcfile1:14.*" "second pass: run to foo()"
 109
 110     # This time, let the program run to completion.  If GDB checks the
 111     # executable file's timestamp now, it won't notice any change.
 112     gdb_continue_to_end "second pass"
 113
 114     # Now move the newer executable into place, and re-run.  GDB
 115     # should still notice that the executable file has changed,
 116     # and still re-set the breakpoint appropriately.
 117     gdb_rename_execfile ${binfile} ${binfile1}
 118     gdb_rename_execfile ${binfile2} ${binfile}
 119     gdb_run_cmd
 120     gdb_test "" "Breakpoint.* foo .* at .*:9.*" "second pass: run to foo() second time"
 121 }
 122
 123 # End of tests.
 124
 125 return 0