gdb/testsuite/gdb.trace/tspeed.exp

   1 # Copyright 2011-2024 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 load_lib "trace-support.exp"
  17
  18 require allow_shlib_tests
  19
  20 # Do not run if gdbsever debug is enabled - the output file is many Gb.
  21 if [gdbserver_debug_enabled] {
  22     return 0
  23 }
  24
  25 standard_testfile
  26 set executable $testfile
  27
  28 # Check that the target supports trace.
  29 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  30     untested "failed to compile"
  31     return -1
  32 }
  33
  34 clean_restart ${testfile}
  35
  36 if ![runto_main] {
  37     return -1
  38 }
  39
  40 if ![gdb_target_supports_trace] {
  41     unsupported "target does not support trace"
  42     return -1
  43 }
  44
  45 # Compile the test case with the in-process agent library.
  46 set ipalib [get_in_proc_agent]
  47
  48 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  49           executable [concat {debug c} shlib=$ipalib]] != "" } {
  50     untested "failed to compile"
  51     return -1
  52 }
  53
  54 # Typically we need a little extra time for this test.
  55 set timeout 180
  56
  57 set ws "\[\r\n\t \]+"
  58 set cr "\[\r\n\]+"
  59
  60 #
  61 # Utility procs
  62 #
  63
  64 proc prepare_for_trace_test {} {
  65     global executable
  66     global ipalib
  67
  68     clean_restart $executable
  69     gdb_load_shlib $ipalib
  70
  71     runto_main
  72
  73     set testline [gdb_get_line_number "set pre-run breakpoint here"]
  74
  75     gdb_test "break $testline" ".*" \
  76         "break at pre-run"
  77
  78     set testline [gdb_get_line_number "set post-run breakpoint here"]
  79
  80     gdb_test "break $testline" ".*" \
  81         "break at post-run"
  82 }
  83
  84 proc run_trace_experiment {} {
  85
  86     gdb_test "continue" \
  87         ".*Breakpoint \[0-9\]+, main .*" \
  88         "advance to trace begin"
  89
  90     gdb_test_no_output "tstart" "start trace experiment"
  91
  92     gdb_test "continue" \
  93         ".*Breakpoint \[0-9\]+, main .*" \
  94         "advance through tracing"
  95
  96     gdb_test "tstatus" ".*Trace .*" "check on trace status"
  97
  98     gdb_test "tstop" "" ""
  99 }
 100
 101 proc_with_prefix gdb_slow_trace_speed_test { } {
 102
 103     gdb_delete_tracepoints
 104
 105     gdb_test "print iters = init_iters" ".* = .*"
 106
 107     set testline [gdb_get_line_number "set tracepoint here"]
 108
 109     gdb_test "trace $testline if (globfoo != 12 && globfoo2 == 45)" \
 110         "Tracepoint \[0-9\]+ at .*" \
 111         "set slow tracepoint"
 112
 113     # Begin the test.
 114     run_trace_experiment
 115 }
 116
 117 proc_with_prefix gdb_fast_trace_speed_test { } {
 118     global gdb_prompt
 119
 120     gdb_delete_tracepoints
 121
 122     gdb_test "print iters = init_iters" ".* = .*"
 123
 124     set run_ftrace 0
 125
 126     set testline [gdb_get_line_number "set tracepoint here"]
 127
 128     gdb_test_multiple "ftrace $testline if (globfoo != 12 && globfoo2 == 45)" \
 129         "set conditional fast tracepoint" {
 130             -re "Fast tracepoint \[0-9\]+ at .*\r\n$gdb_prompt $" {
 131                 pass "set conditional fast tracepoint, done"
 132                 set run_ftrace 1
 133             }
 134             -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
 135                 pass "set conditional fast tracepoint, not allowed at line"
 136             }
 137         }
 138
 139     # If the fast tracepoint couldn't be set, don't bother with the run.
 140     if {$run_ftrace == 1} {
 141
 142         # Begin the test.
 143         run_trace_experiment
 144     }
 145 }
 146
 147 proc gdb_trace_collection_test {} {
 148
 149     prepare_for_trace_test
 150
 151     gdb_slow_trace_speed_test
 152
 153     gdb_fast_trace_speed_test
 154 }
 155
 156 clean_restart $executable
 157 gdb_load_shlib $ipalib
 158
 159 runto_main
 160
 161 if {![gdb_target_supports_trace]} {
 162     unsupported "current target does not support trace"
 163     return 1
 164 }
 165
 166 # Body of test encased in a proc so we can return prematurely.
 167 gdb_trace_collection_test