gdb/testsuite/gdb.trace/tspeed.exp

   1 # Copyright 2011-2019 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 load_lib "trace-support.exp"
  17
  18 if {[skip_shlib_tests]} {
  19     return 0
  20 }
  21
  22 standard_testfile
  23 set executable $testfile
  24
  25 # Check that the target supports trace.
  26 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  27     untested "failed to compile"
  28     return -1
  29 }
  30
  31 clean_restart ${testfile}
  32
  33 if ![runto_main] {
  34     fail "can't run to main to check for trace support"
  35     return -1
  36 }
  37
  38 if ![gdb_target_supports_trace] {
  39     unsupported "target does not support trace"
  40     return -1
  41 }
  42
  43 # Compile the test case with the in-process agent library.
  44 set ipalib [get_in_proc_agent]
  45
  46 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  47           executable [concat {debug c} shlib=$ipalib]] != "" } {
  48     untested "failed to compile"
  49     return -1
  50 }
  51
  52 # Typically we need a little extra time for this test.
  53 set timeout 180
  54
  55 set ws "\[\r\n\t \]+"
  56 set cr "\[\r\n\]+"
  57
  58 #
  59 # Utility procs
  60 #
  61
  62 proc prepare_for_trace_test {} {
  63     global executable
  64     global ipalib
  65
  66     clean_restart $executable
  67     gdb_load_shlib $ipalib
  68
  69     runto_main
  70
  71     set testline [gdb_get_line_number "set pre-run breakpoint here"]
  72
  73     gdb_test "break $testline" ".*" ""
  74
  75     set testline [gdb_get_line_number "set post-run breakpoint here"]
  76
  77     gdb_test "break $testline" ".*" ""
  78 }
  79
  80 proc run_trace_experiment {} {
  81
  82     gdb_test "continue" \
  83         ".*Breakpoint \[0-9\]+, main .*" \
  84         "advance to trace begin"
  85
  86     gdb_test_no_output "tstart" "start trace experiment"
  87
  88     gdb_test "continue" \
  89         ".*Breakpoint \[0-9\]+, main .*" \
  90         "advance through tracing"
  91
  92     gdb_test "tstatus" ".*Trace .*" "check on trace status"
  93
  94     gdb_test "tstop" "" ""
  95 }
  96
  97 proc gdb_slow_trace_speed_test { } {
  98
  99     gdb_delete_tracepoints
 100
 101     gdb_test "print iters = init_iters" ".* = .*"
 102
 103     set testline [gdb_get_line_number "set tracepoint here"]
 104
 105     gdb_test "trace $testline if (globfoo != 12 && globfoo2 == 45)" \
 106         "Tracepoint \[0-9\]+ at .*" \
 107         "set slow tracepoint"
 108
 109     # Begin the test.
 110     run_trace_experiment
 111 }
 112
 113 proc gdb_fast_trace_speed_test { } {
 114     global gdb_prompt
 115
 116     gdb_delete_tracepoints
 117
 118     gdb_test "print iters = init_iters" ".* = .*"
 119
 120     set run_ftrace 0
 121
 122     set testline [gdb_get_line_number "set tracepoint here"]
 123
 124     gdb_test_multiple "ftrace $testline if (globfoo != 12 && globfoo2 == 45)" \
 125         "set conditional fast tracepoint" {
 126             -re "Fast tracepoint \[0-9\]+ at .*\r\n$gdb_prompt $" {
 127                 pass "set conditional fast tracepoint, done"
 128                 set run_ftrace 1
 129             }
 130             -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
 131                 pass "set conditional fast tracepoint, not allowed at line"
 132             }
 133         }
 134
 135     # If the fast tracepoint couldn't be set, don't bother with the run.
 136     if { $run_ftrace == 1 } then {
 137
 138         # Begin the test.
 139         run_trace_experiment
 140     }
 141 }
 142
 143 proc gdb_trace_collection_test {} {
 144
 145     prepare_for_trace_test
 146
 147     gdb_slow_trace_speed_test
 148
 149     gdb_fast_trace_speed_test
 150 }
 151
 152 clean_restart $executable
 153 gdb_load_shlib $ipalib
 154
 155 runto_main
 156
 157 if { ![gdb_target_supports_trace] } then {
 158     unsupported "current target does not support trace"
 159     return 1
 160 }
 161
 162 # Body of test encased in a proc so we can return prematurely.
 163 gdb_trace_collection_test