gdb/testsuite/gdb.dwarf2/dwp-symlink.exp

   1 # Copyright 2013-2021 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 standard_testfile
  17
  18 remote_file host delete [standard_output_file ${testfile}.dwp]
  19 if [remote_file host exists [standard_output_file ${testfile}.dwp]] {
  20     unsupported "dwp file cannot be deleted"
  21     return 0
  22 }
  23 if { [build_executable ${testfile}.exp ${testfile} ${srcfile}] == -1 } {
  24     return -1
  25 }
  26 if ![remote_file host exists [standard_output_file ${testfile}.dwp]] {
  27     unsupported "testsuite run does not produce dwp files"
  28     return 0
  29 }
  30
  31 set thelink "${testfile}-thelink"
  32
  33 remote_file host delete [standard_output_file ${thelink}]
  34 remote_file host delete [standard_output_file ${thelink}.dwp]
  35 # file link is only Tcl 8.4+.
  36 remote_exec host "ln -sf ${testfile} [standard_output_file $thelink]"
  37 if ![remote_file host exists [standard_output_file $thelink]] {
  38     unsupported "host does not support symbolic links (binary symlink is missing)"
  39     return 0
  40 }
  41 if [remote_file host exists [standard_output_file $thelink.dwp]] {
  42     unsupported "host does not support symbolic links (we tried to delete a file and it is still there)"
  43     return 0
  44 }
  45
  46 clean_restart "$testfile"
  47
  48 gdb_test "ptype main" {type = int \(int, char \*\*\)} "binary default, dwp default"
  49
  50 clean_restart "$thelink"
  51
  52 gdb_test "ptype main" {type = int \(int, char \*\*\)} "binary symlink, dwp default"
  53
  54 gdb_exit
  55 remote_exec host "mv -f [standard_output_file ${testfile}.dwp] [standard_output_file ${thelink}.dwp]"
  56 if [remote_file host exists [standard_output_file ${testfile}.dwp]] {
  57     unsupported "host does not support symbolic links (binary symlink exists)"
  58     return 0
  59 }
  60 if ![remote_file host exists [standard_output_file ${thelink}.dwp]] {
  61     unsupported "host does not support symbolic links (dwp symlink is missing)"
  62     return 0
  63 }
  64
  65 clean_restart "$testfile"
  66
  67 # This case cannot work.
  68 gdb_test "ptype main" {type = int \(\)} "binary default, dwp at symlink"
  69
  70 clean_restart "$thelink"
  71
  72 gdb_test "ptype main" {type = int \(int, char \*\*\)} "binary symlink, dwp at symlink"
  73
  74 # Verify we can still find the dwp if we change directories and we specified
  75 # a relative path for the program.
  76
  77 # This is clean_restart, but specifying a relative path to the binary.
  78 gdb_exit
  79 gdb_start
  80 gdb_reinitialize_dir $srcdir/$subdir
  81 gdb_test "cd [file dirname [standard_output_file ${thelink}]]" \
  82     "Working directory .*"
  83 gdb_load "./${thelink}"
  84
  85 gdb_test "cd .." "Working directory .*"
  86
  87 gdb_test "ptype main" {type = int \(int, char \*\*\)} \
  88     "relative path, binary symlink, dwp at symlink"
  89
  90 # Rename the dwp file back to its original name.
  91 remote_exec host "mv -f [standard_output_file ${thelink}.dwp] [standard_output_file ${testfile}.dwp]"
  92
  93 # N.B. At this point the active gdb is in, essentially, some random directory.
  94 # Restart a new copy if you add more tests here.
  95
  96 # Now verify that the following scenario works:
  97 # dir1/real-binary-with-random-name
  98 # dir2/real-dwp-with-random-name
  99 # dir3/symlink-to-real-binary
 100 # dir3/symlink-to-real-binary.dwp
 101
 102 set dwp_bin_dir [standard_output_file dwp-dir1]
 103 set dwp_dwp_dir [standard_output_file dwp-dir2]
 104 set dwp_symlink_dir [standard_output_file dwp-dir3]
 105 set dwp_real_binary "dwp-abc"
 106 set dwp_real_dwp "dwp-def"
 107 set dwp_symlink_binary "dwp-symlink-binary"
 108 set dwp_symlink_dwp "${dwp_symlink_binary}.dwp"
 109
 110 remote_exec host "rm -rf ${dwp_bin_dir}"
 111 remote_exec host "rm -rf ${dwp_dwp_dir}"
 112 remote_exec host "rm -rf ${dwp_symlink_dir}"
 113 remote_exec host "mkdir ${dwp_bin_dir}"
 114 remote_exec host "mkdir ${dwp_dwp_dir}"
 115 remote_exec host "mkdir ${dwp_symlink_dir}"
 116 remote_exec host "cp [standard_output_file $testfile] ${dwp_bin_dir}/${dwp_real_binary}"
 117 remote_exec host "cp [standard_output_file ${testfile}.dwp] ${dwp_dwp_dir}/${dwp_real_dwp}"
 118 # We don't test for failure to create the symlink here.
 119 # We assume that if the above symlinks are created ok, these will be too.
 120 remote_exec host "ln -sf ${dwp_bin_dir}/${dwp_real_binary} ${dwp_symlink_dir}/${dwp_symlink_binary}"
 121 remote_exec host "ln -sf ${dwp_dwp_dir}/${dwp_real_dwp} ${dwp_symlink_dir}/${dwp_symlink_dwp}"
 122
 123 clean_restart "${dwp_symlink_dir}/${dwp_symlink_binary}"
 124
 125 if ![runto_main] {
 126     return -1
 127 }
 128
 129 gdb_test {print argv[0]} "/${dwp_symlink_binary}\"" \
 130     "separate executable/dwp symlinks"