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

   1 #   Copyright 1998-2024 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 standard_testfile actions.c
  21 require gdb_trace_common_supports_arch
  22 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" $binfile \
  23           executable {debug nowarnings}] != "" } {
  24     untested "failed to compile"
  25     return -1
  26 }
  27
  28 clean_restart
  29 gdb_file_cmd $binfile
  30
  31 #
  32 # test while-stepping command
  33 #
  34
  35 gdb_delete_tracepoints
  36 set trcpt1 [gdb_gettpnum gdb_c_test]
  37 if {$trcpt1 <= 0} {
  38     fail "could not find gdb_c_test function"
  39     return
  40 }
  41
  42 # 5.12 basic while-stepping command (collect regs)
  43
  44 gdb_test "info tracepoints" \
  45     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  46 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  47 \[\t \]+not installed on target" \
  48         "5.12: set a tracepoint, stepcount is zero"
  49
  50 set stepcount 12
  51
  52 gdb_trace_setactions "5.12: set stepcount to $stepcount" \
  53         "" \
  54         "while-stepping $stepcount" "" \
  55         "collect \$regs" "^$" \
  56         "end" ""
  57
  58 gdb_test "info tracepoints" \
  59     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  60 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  61 \[\t \]+while-stepping 12.*" \
  62         "5.12: info trace shows \"while-stepping\""
  63
  64 # 5.13 step out of context while collecting local variable
  65 #      [deferred to dynamic test section]
  66
  67 proc while_stepping_bogus_arg { bogus msgstring } {
  68     global gdb_prompt
  69
  70     gdb_trace_setactions "$msgstring" \
  71             "" \
  72             "while-stepping $bogus" ".*while-stepping step count"
  73 }
  74
  75 # 5.14 while-stepping (no argument)
  76
  77 while_stepping_bogus_arg "" "5.14: while-stepping null stepcount"
  78
  79 # 5.15 while-stepping (zero stepcount)
  80
  81 while_stepping_bogus_arg "0" "5.15: while-stepping rejects zero stepcount"
  82
  83 # 5.16 while-stepping without collecting anything
  84 gdb_trace_setactions "5.16: step without collecting anything" \
  85         "" \
  86         "while-stepping $stepcount" "^$" \
  87         "end" ""
  88
  89 gdb_test "info tracepoints" \
  90     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
  91 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
  92 .*while-stepping $stepcount.*
  93 .*end.*" \
  94         "5.16: confirm actions, step without collecting anything"
  95
  96 # Can't use runto_main here, because that would delete the tracepoints
  97 # created above.
  98
  99 # Load the binary to the target too.
 100 gdb_load $binfile
 101
 102 gdb_breakpoint "main"
 103 gdb_run_cmd
 104 if {[gdb_test "" "Breakpoint .*" "run to main"] != 0} {
 105     return -1
 106 }
 107
 108 if ![gdb_target_supports_trace] {
 109     unsupported "target does not support trace"
 110     return -1
 111 }
 112
 113 gdb_trace_setactions "set stepcount to $stepcount" \
 114         "" \
 115         "while-stepping $stepcount" "" \
 116         "collect \$regs " "^$" \
 117         "collect \$locals " "^$" \
 118         "end" ""
 119
 120 proc check_tracepoint { data_source } {
 121     with_test_prefix "$data_source" {
 122         global srcfile
 123         global stepcount
 124
 125         gdb_test "info tracepoints" \
 126             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 127 \[0-9\]+\[\t \]+tracepoint     keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
 128 \[\t \]+while-stepping $stepcount.*
 129 \[\t \]+collect \\\$regs.*
 130 \[\t \]+collect \\\$locals.*
 131 \[\t \]+end.*"
 132     }
 133 }
 134
 135 gdb_test_no_output "tstart"
 136 check_tracepoint "live"
 137 gdb_test_no_output "tstop"
 138 set tracefile [standard_output_file ${testfile}]
 139 gdb_test "tsave ${tracefile}.tf" \
 140     "Trace data saved to file '${tracefile}.tf'\\." \
 141     "save tfile trace file"
 142 gdb_test "tsave -ctf ${tracefile}.ctf" \
 143     "Trace data saved to directory '${tracefile}.ctf'\\." \
 144     "save ctf trace file"
 145
 146 # Restart GDB and read the trace data in tfile target.
 147 clean_restart
 148 gdb_file_cmd $binfile
 149 gdb_test "target tfile ${tracefile}.tf" ".*" \
 150     "change to tfile target"
 151 check_tracepoint "tfile"
 152
 153 # Try to read ctf data if GDB supports.
 154 set gdb_can_read_ctf_data 0
 155 gdb_test_multiple "target ctf" "" {
 156     -re "Undefined target command: \"ctf\"\.  Try \"help target\"\.\r\n$gdb_prompt $" {
 157         set gdb_can_read_ctf_data 0
 158     }
 159     -re "No CTF directory specified.*\r\n$gdb_prompt $" {
 160         set gdb_can_read_ctf_data 1
 161     }
 162 }
 163
 164 if { $gdb_can_read_ctf_data } {
 165     clean_restart
 166     gdb_file_cmd $binfile
 167     gdb_test "target ctf ${tracefile}.ctf" ".*" \
 168         "change to ctf target"
 169     check_tracepoint "ctf"
 170 }