gdb/testsuite/gdb.trace/tspeed.exp

   1 # Copyright 2011-2012 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 set testfile "tspeed"
  19 set srcfile ${testfile}.c
  20 set executable $testfile
  21 set binfile $objdir/$subdir/$executable
  22
  23 set ipalib $objdir/../gdbserver/libinproctrace.so
  24
  25 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  26           executable [concat {debug nowarnings c} libs=$ipalib]] != "" } {
  27     untested tspeed.exp
  28     return -1
  29 }
  30
  31 # Typically we need a little extra time for this test.
  32 set timeout 180
  33
  34 set ws "\[\r\n\t \]+"
  35 set cr "\[\r\n\]+"
  36
  37 #
  38 # Utility procs
  39 #
  40
  41 proc prepare_for_trace_test {} {
  42     global executable
  43
  44     clean_restart $executable
  45
  46     runto_main
  47
  48     set testline [gdb_get_line_number "set pre-run breakpoint here"]
  49
  50     gdb_test "break $testline" ".*" ""
  51
  52     set testline [gdb_get_line_number "set post-run breakpoint here"]
  53
  54     gdb_test "break $testline" ".*" ""
  55 }
  56
  57 proc run_trace_experiment {} {
  58
  59     gdb_test "continue" \
  60         ".*Breakpoint \[0-9\]+, main .*" \
  61         "advance to trace begin"
  62
  63     gdb_test_no_output "tstart" "start trace experiment"
  64
  65     gdb_test "continue" \
  66         ".*Breakpoint \[0-9\]+, main .*" \
  67         "advance through tracing"
  68
  69     gdb_test "tstatus" ".*Trace .*" "check on trace status"
  70
  71     gdb_test "tstop" "" ""
  72 }
  73
  74 proc gdb_slow_trace_speed_test { } {
  75
  76     gdb_delete_tracepoints
  77
  78     gdb_test "print iters = init_iters" ".* = .*";
  79
  80     set testline [gdb_get_line_number "set tracepoint here"]
  81
  82     gdb_test "trace $testline if (globfoo != 12 && globfoo2 == 45)" \
  83         "Tracepoint \[0-9\]+ at .*" \
  84         "set slow tracepoint"
  85
  86     # Begin the test.
  87     run_trace_experiment
  88 }
  89
  90 proc gdb_fast_trace_speed_test { } {
  91     global gdb_prompt
  92
  93     gdb_delete_tracepoints
  94
  95     gdb_test "print iters = init_iters" ".* = .*";
  96
  97     set run_ftrace 0
  98
  99     set testline [gdb_get_line_number "set tracepoint here"]
 100
 101     gdb_test_multiple "ftrace $testline if (globfoo != 12 && globfoo2 == 45)" \
 102         "set conditional fast tracepoint" {
 103             -re "Fast tracepoint \[0-9\]+ at .*\r\n$gdb_prompt $" {
 104                 pass "set conditional fast tracepoint, done"
 105                 set run_ftrace 1
 106             }
 107             -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
 108                 pass "set conditional fast tracepoint, not allowed at line"
 109             }
 110         }
 111
 112     # If the fast tracepoint couldn't be set, don't bother with the run.
 113     if { $run_ftrace == 1 } then {
 114
 115         # Begin the test.
 116         run_trace_experiment
 117     }
 118 }
 119
 120 proc gdb_trace_collection_test {} {
 121
 122     prepare_for_trace_test
 123
 124     gdb_slow_trace_speed_test
 125
 126     gdb_fast_trace_speed_test
 127 }
 128
 129 clean_restart $executable
 130 runto_main
 131
 132 # We generously give ourselves one "pass" if we successfully
 133 # detect that this test cannot be run on this target!
 134 if { ![gdb_target_supports_trace] } then {
 135     pass "Current target does not support trace"
 136     return 1;
 137 }
 138
 139 # Body of test encased in a proc so we can return prematurely.
 140 gdb_trace_collection_test