gdb/testsuite/gdb.trace/tfile.exp

   1 #   Copyright 2010-2016 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 # Test of trace file support.
  17
  18 # Note that unlike most of the tracing tests, this can be run on
  19 # targets lacking tracepoint support; the program tfile.c has the
  20 # ability to generate synthetic trace files directly, and the tfile
  21 # target is available to all GDB configs.
  22
  23 load_lib "trace-support.exp"
  24
  25 if {![is_remote host] && ![is_remote target]} {
  26     set tfile_basic [standard_output_file tfile-basic.tf]
  27     set tfile_error [standard_output_file tfile-error.tf]
  28     set tfile_dir [file dirname $tfile_basic]/
  29     set purely_local 1
  30 } else {
  31     set tfile_basic tfile-basic.tf
  32     set tfile_error tfile-error.tf
  33     set tfile_dir ""
  34     set purely_local 0
  35 }
  36
  37 standard_testfile
  38 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  39           executable \
  40           [list debug \
  41                "additional_flags=-DTFILE_DIR=\"$tfile_dir\""]] \
  42          != "" } {
  43     untested ${testfile}.exp
  44     return -1
  45 }
  46
  47 # Make sure we are starting fresh.
  48 remote_file host delete $tfile_basic
  49 remote_file host delete $tfile_error
  50 remote_file target delete $tfile_basic
  51 remote_file target delete $tfile_error
  52
  53 if { ![generate_tracefile $binfile] } {
  54     unsupported "unable to generate trace file"
  55     return -1
  56 }
  57
  58 if {!$purely_local} {
  59     # Copy tracefile from target to host through build.
  60     remote_download host [remote_upload target tfile-basic.tf] tfile-basic.tf
  61     remote_download host [remote_upload target tfile-error.tf] tfile-error.tf
  62 }
  63
  64 clean_restart $binfile
  65
  66 # Program has presumably exited, now target a trace file it created.
  67
  68 gdb_test "target tfile $tfile_basic" "Created tracepoint.*" \
  69     "target tfile [file tail $tfile_basic]"
  70
  71 gdb_test "info trace" ".*tracepoint.*in write_basic_trace_file.*" \
  72     "info tracepoints on trace file"
  73
  74 gdb_test "tfind 0" \
  75     "Found trace frame 0, tracepoint \[0-9\]+.
  76 \#0  write_basic_trace_file ().*" \
  77     "tfind 0 on trace file"
  78
  79 # Note that there is no tracepoint collecting these globals, we
  80 # just happen to know they are covered by the trace frame.
  81
  82 gdb_test "print testglob" " = 31415" "print testglob on trace file"
  83
  84 gdb_test "print testglob2" " = 271828" "print testglob2 on trace file"
  85
  86 # This global is not covered by the trace frame, but since it's const,
  87 # we should be able to read it from the executable.
  88
  89 gdb_test "print constglob" " = 10000" "print constglob on trace file"
  90
  91 # Similarly, disassembly should find the read-only pieces in the executable.
  92 gdb_test "disassemble main" \
  93     "Dump of assembler code for function main:.*   $hex <\\+0\\>:.*End of assembler dump\."
  94
  95 # This global is also not covered by the trace frame, and since it's
  96 # non-const, we should _not_ read it from the executable, as that
  97 # would show the variable's initial value, not the current at time the
  98 # trace frame was created.
  99
 100 gdb_test "print nonconstglob" \
 101     " = <unavailable>" "print nonconstglob on trace file"
 102
 103 gdb_test "tfind" "Target failed to find requested trace frame." \
 104     "tfind does not find a second frame in trace file"
 105
 106 gdb_test "tstatus" \
 107     "Using a trace file.*
 108 Trace stopped by a tstop command.*
 109 Collected 1 trace frame.*
 110 Trace buffer has 256 bytes of 4096 bytes free \\(93% full\\).*
 111 Looking at trace frame 0, tracepoint .*" \
 112     "tstatus on trace file"
 113
 114 gdb_test "tfind end" "No longer looking at any trace frame" "leave tfind mode"
 115
 116 gdb_test "backtrace" "No stack\." \
 117     "no stack if no traceframe selected"
 118
 119 gdb_test "info registers" "The program has no registers now\." \
 120     "no registers if no traceframe selected"
 121
 122 # Now start afresh, using only a trace file.
 123
 124 gdb_exit
 125 gdb_start
 126
 127 gdb_load $binfile
 128
 129 gdb_test "target tfile $tfile_error" "Created tracepoint.*" \
 130     "target tfile [file tail $tfile_error]"
 131
 132 gdb_test "tstatus" \
 133     "Using a trace file.*
 134 Trace stopped by an error \\(made-up error, tracepoint 1\\).*
 135 Collected 0 trace frame.*
 136 Trace buffer has 256 bytes of 4096 bytes free \\(93% full\\).*
 137 Not looking at any trace frame.*" \
 138     "tstatus on error trace file"
 139
 140 # Make sure we can reopen without error.
 141 gdb_test \
 142     "interpreter-exec mi \"-target-select tfile $tfile_basic\"" \
 143     "\\^connected.*" \
 144     "interpreter-exec mi \"-target-select tfile tfile-basic.tf\""
 145
 146 gdb_test "interpreter-exec mi \"-trace-status\"" \
 147     "\\^done,supported=\"file\",trace-file=\".*$tfile_basic\",running=\"0\",stop-reason=\"request\",frames=\"${decimal}\",frames-created=\"${decimal}\",buffer-size=\"${decimal}\",buffer-free=\"${decimal}\",disconnected=\".*\",circular=\".*\",user-name=\"\",notes=\"\",start-time=\".*\",stop-time=\".*\"" \
 148     "-trace-status"
 149
 150 # Test completion works well.
 151
 152 if { [readline_is_used] } {
 153     gdb_test "target tfile [file rootname $tfile_basic]\t" \
 154         "Assuming tracepoint.*" \
 155         "complete-command 'target tfile'"
 156 }