gdb/testsuite/gdb.trace/stap-trace.exp

   1 # Copyright 2012-2023 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 ""
  20
  21 set ws "\[\r\n\t \]+"
  22
  23 # Only x86 and x86_64 targets are supported for now.
  24
  25 require {is_any_target "x86_64-*" "i?86-*"}
  26
  27 proc compile_stap_bin {exec_name {arg ""}} {
  28     global srcfile
  29     global srcdir
  30     global subdir
  31     global executable
  32
  33     if { $arg != "" } {
  34         set arg "additional_flags=$arg"
  35     }
  36
  37     set executable ${exec_name}
  38
  39     if { [gdb_compile "$srcdir/$subdir/$srcfile" \
  40               [standard_output_file $exec_name] \
  41               executable [concat $arg debug nowarnings]] != "" } {
  42         untested "failed to compile"
  43         return 0
  44     }
  45
  46     return 1
  47 }
  48
  49 proc prepare_for_trace_test {} {
  50     global executable
  51
  52     clean_restart $executable
  53
  54     if { ![runto_main] } {
  55         perror "Could not run to `main'."
  56         return
  57     }
  58
  59     gdb_breakpoint [gdb_get_line_number "end-here"]
  60 }
  61
  62 proc run_trace_experiment { test_probe msg } {
  63     global gdb_prompt
  64
  65     set test "collect $msg: start trace experiment"
  66     gdb_test_multiple "tstart" "$test" {
  67         -re "^tstart\r\n$gdb_prompt $" {
  68             pass "$test"
  69         }
  70     }
  71
  72     gdb_test "continue" \
  73             "Continuing.*Breakpoint \[0-9\]+.*" \
  74             "collect $msg: run trace experiment"
  75     gdb_test_no_output "tstop" \
  76             "collect $msg: stop trace experiment"
  77     gdb_test "tfind start" \
  78             "#0 .*" \
  79             "collect $msg: tfind test frame"
  80 }
  81
  82 proc gdb_collect_probe_arg { msg probe val_arg0 } {
  83     global gdb_prompt
  84
  85     prepare_for_trace_test
  86
  87     gdb_test "trace $probe" \
  88             "Tracepoint \[0-9\]+ at .*" \
  89             "collect $msg: set tracepoint"
  90     gdb_trace_setactions "collect $msg: define actions" \
  91             "" \
  92             "collect \$_probe_arg0" "^$"
  93
  94     # Begin the test.
  95     run_trace_experiment $msg $probe
  96
  97     gdb_test "print \$_probe_arg0" \
  98             "\\$\[0-9\]+ = $val_arg0" \
  99             "collect $msg: collected probe arg0"
 100 }
 101
 102 if {![compile_stap_bin "stap-probe-nosem"]} {
 103     # An appropriate failure message has already been output
 104     return -1
 105 }
 106
 107 clean_restart $executable
 108 if { ![runto_main] } {
 109     perror "Could not run to `main'."
 110     return
 111 }
 112
 113 if { ![gdb_target_supports_trace] } {
 114     # Test cannot run on this target.
 115     unsupported "test requires trace"
 116     return 1
 117 }
 118
 119 gdb_collect_probe_arg "probe args without semaphore" "-probe-stap user" "23"
 120 gdb_exit
 121
 122 if {![compile_stap_bin "stap-probe-sem" "-DUSE_PROBES"]} {
 123     # An appropriate failure message has already been output
 124     return -1
 125 }
 126
 127 gdb_collect_probe_arg "probe args with semaphore" "-probe-stap two" "46"
 128
 129 # Finished!
 130 gdb_test "tfind none" ".*" ""