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

   1 #   Copyright 1998-2019 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_trace_common_supports_arch] {
  26     unsupported "no trace-common.h support for arch"
  27     return -1
  28 }
  29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" $binfile \
  30           executable {debug nowarnings}] != "" } {
  31     untested "failed to compile"
  32     return -1
  33 }
  34 gdb_reinitialize_dir $srcdir/$subdir
  35
  36 # If testing on a remote host, download the source file.
  37 # remote_download host $srcdir/$subdir/$srcfile
  38
  39 gdb_file_cmd $binfile
  40
  41 #
  42 # test while-stepping command
  43 #
  44
  45 gdb_delete_tracepoints
  46 set trcpt1 [gdb_gettpnum gdb_c_test]
  47 if { $trcpt1 <= 0 } then {
  48     fail "could not find gdb_c_test function"
  49     return
  50 }
  51
  52 # 5.12 basic while-stepping command (collect regs)
  53
  54 gdb_test "info tracepoints" \
  55     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  56 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  57 \[\t \]+not installed on target." \
  58         "5.12: set a tracepoint, stepcount is zero"
  59
  60 set stepcount 12
  61
  62 gdb_trace_setactions "5.12: set stepcount to $stepcount" \
  63         "" \
  64         "while-stepping $stepcount" "" \
  65         "collect \$regs" "^$" \
  66         "end" ""
  67
  68 gdb_test "info tracepoints" \
  69     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  70 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  71 \[\t \]+while-stepping 12.*" \
  72         "5.12: info trace shows \"while-stepping\""
  73
  74 # 5.13 step out of context while collecting local variable
  75 #      [deferred to dynamic test section]
  76
  77 proc while_stepping_bogus_arg { bogus msgstring } {
  78     global gdb_prompt
  79
  80     gdb_trace_setactions "$msgstring" \
  81             "" \
  82             "while-stepping $bogus" ".*while-stepping step count"
  83 }
  84
  85 # 5.14 while-stepping (no argument)
  86
  87 while_stepping_bogus_arg "" "5.14: while-stepping null stepcount"
  88
  89 # 5.15 while-stepping (zero stepcount)
  90
  91 while_stepping_bogus_arg "0" "5.15: while-stepping rejects zero stepcount"
  92
  93 # 5.16 while-stepping without collecting anything
  94 gdb_trace_setactions "5.16: step without collecting anything" \
  95         "" \
  96         "while-stepping $stepcount" "^$" \
  97         "end" ""
  98
  99 gdb_test "info tracepoints" \
 100     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 101 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
 102 .*while-stepping $stepcount.*
 103 .*end.*" \
 104         "5.16: confirm actions, step without collecting anything"
 105
 106 # Can't use runto_main here, because that would delete the tracepoints
 107 # created above.
 108
 109 # Load the binary to the target too.
 110 gdb_load $binfile
 111
 112 gdb_breakpoint "main"
 113 gdb_run_cmd
 114 if {[gdb_test "" "Breakpoint .*"] != 0} {
 115     fail "can't run to main"
 116     return -1
 117 }
 118
 119 if ![gdb_target_supports_trace] {
 120     unsupported "target does not support trace"
 121     return -1
 122 }
 123
 124 gdb_trace_setactions "set stepcount to $stepcount" \
 125         "" \
 126         "while-stepping $stepcount" "" \
 127         "collect \$regs " "^$" \
 128         "collect \$locals " "^$" \
 129         "end" ""
 130
 131 proc check_tracepoint { data_source } {
 132     with_test_prefix "$data_source" {
 133         global srcfile
 134         global stepcount
 135
 136         gdb_test "info tracepoints" \
 137             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 138 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
 139 \[\t \]+while-stepping $stepcount.*
 140 \[\t \]+collect \\\$regs.*
 141 \[\t \]+collect \\\$locals.*
 142 \[\t \]+end.*"
 143     }
 144 }
 145
 146 gdb_test_no_output "tstart"
 147 check_tracepoint "live"
 148 gdb_test_no_output "tstop"
 149 set tracefile [standard_output_file ${testfile}]
 150 gdb_test "tsave ${tracefile}.tf" \
 151     "Trace data saved to file '${tracefile}.tf'\.\\r" \
 152     "save tfile trace file"
 153 gdb_test "tsave -ctf ${tracefile}.ctf" \
 154     "Trace data saved to directory '${tracefile}.ctf'\.\\r" \
 155     "save ctf trace file"
 156
 157 # Restart GDB and read the trace data in tfile target.
 158 gdb_exit
 159 gdb_start
 160 gdb_reinitialize_dir $srcdir/$subdir
 161 gdb_file_cmd $binfile
 162 gdb_test "target tfile ${tracefile}.tf" ".*" \
 163     "change to tfile target"
 164 check_tracepoint "tfile"
 165
 166 # Try to read ctf data if GDB supports.
 167 set gdb_can_read_ctf_data 0
 168 gdb_test_multiple "target ctf" "" {
 169     -re "Undefined target command: \"ctf\"\.  Try \"help target\"\.\r\n$gdb_prompt $" {
 170         set gdb_can_read_ctf_data 0
 171     }
 172     -re "No CTF directory specified.*\r\n$gdb_prompt $" {
 173         set gdb_can_read_ctf_data 1
 174     }
 175 }
 176
 177 if { $gdb_can_read_ctf_data } {
 178     gdb_exit
 179     gdb_start
 180     gdb_reinitialize_dir $srcdir/$subdir
 181     gdb_file_cmd $binfile
 182     gdb_test "target ctf ${tracefile}.ctf" ".*" \
 183         "change to ctf target"
 184     check_tracepoint "ctf"
 185 }