gdb/testsuite/gdb.trace/while-stepping.exp

   1 #   Copyright 1998-2016 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 # This file was written by Michael Snyder (msnyder@cygnus.com)
  17
  18 load_lib "trace-support.exp"
  19
  20
  21 gdb_exit
  22 gdb_start
  23
  24 standard_testfile actions.c
  25 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" $binfile \
  26           executable {debug nowarnings}] != "" } {
  27     untested "failed to compile"
  28     return -1
  29 }
  30 gdb_reinitialize_dir $srcdir/$subdir
  31
  32 # If testing on a remote host, download the source file.
  33 # remote_download host $srcdir/$subdir/$srcfile
  34
  35 gdb_file_cmd $binfile
  36
  37 #
  38 # test while-stepping command
  39 #
  40
  41 gdb_delete_tracepoints
  42 set trcpt1 [gdb_gettpnum gdb_c_test]
  43 if { $trcpt1 <= 0 } then {
  44     fail "could not find gdb_c_test function"
  45     return
  46 }
  47
  48 # 5.12 basic while-stepping command (collect regs)
  49
  50 gdb_test "info tracepoints" \
  51     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  52 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  53 \[\t \]+not installed on target." \
  54         "5.12: set a tracepoint, stepcount is zero"
  55
  56 set stepcount 12
  57
  58 gdb_trace_setactions "5.12: set stepcount to $stepcount" \
  59         "" \
  60         "while-stepping $stepcount" "" \
  61         "collect \$regs" "^$" \
  62         "end" ""
  63
  64 gdb_test "info tracepoints" \
  65     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  66 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  67 \[\t \]+while-stepping 12.*" \
  68         "5.12: info trace shows \"while-stepping\""
  69
  70 # 5.13 step out of context while collecting local variable
  71 #      [deferred to dynamic test section]
  72
  73 proc while_stepping_bogus_arg { bogus msgstring } {
  74     global gdb_prompt
  75
  76     gdb_trace_setactions "$msgstring" \
  77             "" \
  78             "while-stepping $bogus" ".*while-stepping step count"
  79 }
  80
  81 # 5.14 while-stepping (no argument)
  82
  83 while_stepping_bogus_arg "" "5.14: while-stepping null stepcount"
  84
  85 # 5.15 while-stepping (zero stepcount)
  86
  87 while_stepping_bogus_arg "0" "5.15: while-stepping rejects zero stepcount"
  88
  89 # 5.16 while-stepping without collecting anything
  90 gdb_trace_setactions "5.16: step without collecting anything" \
  91         "" \
  92         "while-stepping $stepcount" "^$" \
  93         "end" ""
  94
  95 gdb_test "info tracepoints" \
  96     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  97 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  98 .*while-stepping $stepcount.*
  99 .*end.*" \
 100         "5.16: confirm actions, step without collecting anything"
 101
 102 # Can't use runto_main here, because that would delete the tracepoints
 103 # created above.
 104
 105 # Load the binary to the target too.
 106 gdb_load $binfile
 107
 108 gdb_breakpoint "main"
 109 gdb_run_cmd
 110 if {[gdb_test "" "Breakpoint .*"] != 0} {
 111     fail "can't run to main"
 112     return -1
 113 }
 114
 115 if ![gdb_target_supports_trace] {
 116     unsupported "target does not support trace"
 117     return -1
 118 }
 119
 120 gdb_trace_setactions "set stepcount to $stepcount" \
 121         "" \
 122         "while-stepping $stepcount" "" \
 123         "collect \$regs " "^$" \
 124         "collect \$locals " "^$" \
 125         "end" ""
 126
 127 proc check_tracepoint { data_source } {
 128     with_test_prefix "$data_source" {
 129         global srcfile
 130         global stepcount
 131
 132         gdb_test "info tracepoints" \
 133             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 134 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
 135 \[\t \]+while-stepping $stepcount.*
 136 \[\t \]+collect \\\$regs.*
 137 \[\t \]+collect \\\$locals.*
 138 \[\t \]+end.*"
 139     }
 140 }
 141
 142 gdb_test_no_output "tstart"
 143 check_tracepoint "live"
 144 gdb_test_no_output "tstop"
 145 set tracefile [standard_output_file ${testfile}]
 146 gdb_test "tsave ${tracefile}.tf" \
 147     "Trace data saved to file '${tracefile}.tf'\.\\r" \
 148     "save tfile trace file"
 149 gdb_test "tsave -ctf ${tracefile}.ctf" \
 150     "Trace data saved to directory '${tracefile}.ctf'\.\\r" \
 151     "save ctf trace file"
 152
 153 # Restart GDB and read the trace data in tfile target.
 154 gdb_exit
 155 gdb_start
 156 gdb_reinitialize_dir $srcdir/$subdir
 157 gdb_file_cmd $binfile
 158 gdb_test "target tfile ${tracefile}.tf" ".*" \
 159     "change to tfile target"
 160 check_tracepoint "tfile"
 161
 162 # Try to read ctf data if GDB supports.
 163 set gdb_can_read_ctf_data 0
 164 gdb_test_multiple "target ctf" "" {
 165     -re "Undefined target command: \"ctf\"\.  Try \"help target\"\.\r\n$gdb_prompt $" {
 166         set gdb_can_read_ctf_data 0
 167     }
 168     -re "No CTF directory specified.*\r\n$gdb_prompt $" {
 169         set gdb_can_read_ctf_data 1
 170     }
 171 }
 172
 173 if { $gdb_can_read_ctf_data } {
 174     gdb_exit
 175     gdb_start
 176     gdb_reinitialize_dir $srcdir/$subdir
 177     gdb_file_cmd $binfile
 178     gdb_test "target ctf ${tracefile}.ctf" ".*" \
 179         "change to ctf target"
 180     check_tracepoint "ctf"
 181 }