gdb/testsuite/gdb.trace/tspeed.exp

   1 # Copyright 2011-2021 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 load_lib "trace-support.exp"
  17
  18 if {[skip_shlib_tests]} {
  19     return 0
  20 }
  21
  22 # Do not run if gdbsever debug is enabled - the output file is many Gb.
  23 if [gdbserver_debug_enabled] {
  24     return 0
  25 }
  26
  27 standard_testfile
  28 set executable $testfile
  29
  30 # Check that the target supports trace.
  31 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  32     untested "failed to compile"
  33     return -1
  34 }
  35
  36 clean_restart ${testfile}
  37
  38 if ![runto_main] {
  39     fail "can't run to main to check for trace support"
  40     return -1
  41 }
  42
  43 if ![gdb_target_supports_trace] {
  44     unsupported "target does not support trace"
  45     return -1
  46 }
  47
  48 # Compile the test case with the in-process agent library.
  49 set ipalib [get_in_proc_agent]
  50
  51 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  52           executable [concat {debug c} shlib=$ipalib]] != "" } {
  53     untested "failed to compile"
  54     return -1
  55 }
  56
  57 # Typically we need a little extra time for this test.
  58 set timeout 180
  59
  60 set ws "\[\r\n\t \]+"
  61 set cr "\[\r\n\]+"
  62
  63 #
  64 # Utility procs
  65 #
  66
  67 proc prepare_for_trace_test {} {
  68     global executable
  69     global ipalib
  70
  71     clean_restart $executable
  72     gdb_load_shlib $ipalib
  73
  74     runto_main
  75
  76     set testline [gdb_get_line_number "set pre-run breakpoint here"]
  77
  78     gdb_test "break $testline" ".*" ""
  79
  80     set testline [gdb_get_line_number "set post-run breakpoint here"]
  81
  82     gdb_test "break $testline" ".*" ""
  83 }
  84
  85 proc run_trace_experiment {} {
  86
  87     gdb_test "continue" \
  88         ".*Breakpoint \[0-9\]+, main .*" \
  89         "advance to trace begin"
  90
  91     gdb_test_no_output "tstart" "start trace experiment"
  92
  93     gdb_test "continue" \
  94         ".*Breakpoint \[0-9\]+, main .*" \
  95         "advance through tracing"
  96
  97     gdb_test "tstatus" ".*Trace .*" "check on trace status"
  98
  99     gdb_test "tstop" "" ""
 100 }
 101
 102 proc gdb_slow_trace_speed_test { } {
 103
 104     gdb_delete_tracepoints
 105
 106     gdb_test "print iters = init_iters" ".* = .*"
 107
 108     set testline [gdb_get_line_number "set tracepoint here"]
 109
 110     gdb_test "trace $testline if (globfoo != 12 && globfoo2 == 45)" \
 111         "Tracepoint \[0-9\]+ at .*" \
 112         "set slow tracepoint"
 113
 114     # Begin the test.
 115     run_trace_experiment
 116 }
 117
 118 proc gdb_fast_trace_speed_test { } {
 119     global gdb_prompt
 120
 121     gdb_delete_tracepoints
 122
 123     gdb_test "print iters = init_iters" ".* = .*"
 124
 125     set run_ftrace 0
 126
 127     set testline [gdb_get_line_number "set tracepoint here"]
 128
 129     gdb_test_multiple "ftrace $testline if (globfoo != 12 && globfoo2 == 45)" \
 130         "set conditional fast tracepoint" {
 131             -re "Fast tracepoint \[0-9\]+ at .*\r\n$gdb_prompt $" {
 132                 pass "set conditional fast tracepoint, done"
 133                 set run_ftrace 1
 134             }
 135             -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
 136                 pass "set conditional fast tracepoint, not allowed at line"
 137             }
 138         }
 139
 140     # If the fast tracepoint couldn't be set, don't bother with the run.
 141     if { $run_ftrace == 1 } then {
 142
 143         # Begin the test.
 144         run_trace_experiment
 145     }
 146 }
 147
 148 proc gdb_trace_collection_test {} {
 149
 150     prepare_for_trace_test
 151
 152     gdb_slow_trace_speed_test
 153
 154     gdb_fast_trace_speed_test
 155 }
 156
 157 clean_restart $executable
 158 gdb_load_shlib $ipalib
 159
 160 runto_main
 161
 162 if { ![gdb_target_supports_trace] } then {
 163     unsupported "current target does not support trace"
 164     return 1
 165 }
 166
 167 # Body of test encased in a proc so we can return prematurely.
 168 gdb_trace_collection_test