gdb/testsuite/gdb.trace/tspeed.exp

   1 # Copyright 2011-2013 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 standard_testfile
  19 set executable $testfile
  20
  21 set ipalib [get_in_proc_agent]
  22
  23 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  24           executable [concat {debug nowarnings c} libs=$ipalib]] != "" } {
  25     untested tspeed.exp
  26     return -1
  27 }
  28
  29 # Typically we need a little extra time for this test.
  30 set timeout 180
  31
  32 set ws "\[\r\n\t \]+"
  33 set cr "\[\r\n\]+"
  34
  35 #
  36 # Utility procs
  37 #
  38
  39 proc prepare_for_trace_test {} {
  40     global executable
  41
  42     clean_restart $executable
  43
  44     runto_main
  45
  46     set testline [gdb_get_line_number "set pre-run breakpoint here"]
  47
  48     gdb_test "break $testline" ".*" ""
  49
  50     set testline [gdb_get_line_number "set post-run breakpoint here"]
  51
  52     gdb_test "break $testline" ".*" ""
  53 }
  54
  55 proc run_trace_experiment {} {
  56
  57     gdb_test "continue" \
  58         ".*Breakpoint \[0-9\]+, main .*" \
  59         "advance to trace begin"
  60
  61     gdb_test_no_output "tstart" "start trace experiment"
  62
  63     gdb_test "continue" \
  64         ".*Breakpoint \[0-9\]+, main .*" \
  65         "advance through tracing"
  66
  67     gdb_test "tstatus" ".*Trace .*" "check on trace status"
  68
  69     gdb_test "tstop" "" ""
  70 }
  71
  72 proc gdb_slow_trace_speed_test { } {
  73
  74     gdb_delete_tracepoints
  75
  76     gdb_test "print iters = init_iters" ".* = .*";
  77
  78     set testline [gdb_get_line_number "set tracepoint here"]
  79
  80     gdb_test "trace $testline if (globfoo != 12 && globfoo2 == 45)" \
  81         "Tracepoint \[0-9\]+ at .*" \
  82         "set slow tracepoint"
  83
  84     # Begin the test.
  85     run_trace_experiment
  86 }
  87
  88 proc gdb_fast_trace_speed_test { } {
  89     global gdb_prompt
  90
  91     gdb_delete_tracepoints
  92
  93     gdb_test "print iters = init_iters" ".* = .*";
  94
  95     set run_ftrace 0
  96
  97     set testline [gdb_get_line_number "set tracepoint here"]
  98
  99     gdb_test_multiple "ftrace $testline if (globfoo != 12 && globfoo2 == 45)" \
 100         "set conditional fast tracepoint" {
 101             -re "Fast tracepoint \[0-9\]+ at .*\r\n$gdb_prompt $" {
 102                 pass "set conditional fast tracepoint, done"
 103                 set run_ftrace 1
 104             }
 105             -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
 106                 pass "set conditional fast tracepoint, not allowed at line"
 107             }
 108         }
 109
 110     # If the fast tracepoint couldn't be set, don't bother with the run.
 111     if { $run_ftrace == 1 } then {
 112
 113         # Begin the test.
 114         run_trace_experiment
 115     }
 116 }
 117
 118 proc gdb_trace_collection_test {} {
 119
 120     prepare_for_trace_test
 121
 122     gdb_slow_trace_speed_test
 123
 124     gdb_fast_trace_speed_test
 125 }
 126
 127 clean_restart $executable
 128 runto_main
 129
 130 if { ![gdb_target_supports_trace] } then {
 131     unsupported "Current target does not support trace"
 132     return 1;
 133 }
 134
 135 # Body of test encased in a proc so we can return prematurely.
 136 gdb_trace_collection_test