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

   1 # Copyright 2012-2013 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 ""
  20
  21 set ws "\[\r\n\t \]+"
  22 set cr "\[\r\n\]+"
  23
  24 # Only x86 and x86_64 targets are supported for now.
  25
  26 if { ![istarget "x86_64-*"] && ![istarget "i?86-*"] } {
  27     continue
  28 }
  29
  30 proc compile_stap_bin {exec_name {arg ""}} {
  31     global srcfile
  32     global srcdir
  33     global subdir
  34     global executable
  35
  36     if { $arg != "" } {
  37         set arg "additional_flags=$arg"
  38     }
  39
  40     set executable ${exec_name}
  41
  42     if { [gdb_compile "$srcdir/$subdir/$srcfile" \
  43               [standard_output_file $exec_name] \
  44               executable [concat $arg debug nowarnings]] != "" } {
  45         untested "Could not compile ${srcfile}"
  46         return 0
  47     }
  48
  49     return 1
  50 }
  51
  52 proc prepare_for_trace_test {} {
  53     global executable
  54
  55     clean_restart $executable
  56
  57     if { ![runto_main] } {
  58         perror "Could not run to `main'."
  59         continue
  60     }
  61
  62     gdb_breakpoint [gdb_get_line_number "end-here"]
  63 }
  64
  65 proc run_trace_experiment { test_probe msg } {
  66     global gdb_prompt
  67
  68     set test "collect $msg: start trace experiment"
  69     gdb_test_multiple "tstart" "$test" {
  70         -re "^tstart\r\n$gdb_prompt $" {
  71             pass "$test"
  72         }
  73     }
  74
  75     gdb_test "continue" \
  76             "Continuing.*Breakpoint \[0-9\]+.*" \
  77             "collect $msg: run trace experiment"
  78     gdb_test "tstop" \
  79             "\[\r\n\]+" \
  80             "collect $msg: stop trace experiment"
  81     gdb_test "tfind start" \
  82             "#0 .*" \
  83             "collect $msg: tfind test frame"
  84 }
  85
  86 proc gdb_collect_probe_arg { msg probe val_arg0 } {
  87     global gdb_prompt
  88     global cr
  89
  90     prepare_for_trace_test
  91
  92     gdb_test "trace $probe" \
  93             "Tracepoint \[0-9\]+ at .*" \
  94             "collect $msg: set tracepoint"
  95     gdb_trace_setactions "collect $msg: define actions" \
  96             "" \
  97             "collect \$_probe_arg0" "^$"
  98
  99     # Begin the test.
 100     run_trace_experiment $msg $probe
 101
 102     gdb_test "print \$_probe_arg0" \
 103             "\\$\[0-9\]+ = $val_arg0$cr" \
 104             "collect $msg: collected probe arg0"
 105 }
 106
 107 if {![compile_stap_bin "stap-probe-nosem"]} {
 108     # An appropriate failure message has already been output
 109     return -1
 110 }
 111
 112 clean_restart $executable
 113 if { ![runto_main] } {
 114     perror "Could not run to `main'."
 115     continue
 116 }
 117
 118 if { ![gdb_target_supports_trace] } {
 119     # Test cannot run on this target.
 120     return 1
 121 }
 122
 123 gdb_collect_probe_arg "probe args without semaphore" "-probe-stap user" "23"
 124 gdb_exit
 125
 126 if {![compile_stap_bin "stap-probe-sem" "-DUSE_PROBES"]} {
 127     # An appropriate failure message has already been output
 128     return -1
 129 }
 130
 131 gdb_collect_probe_arg "probe args with semaphore" "-probe-stap two" "46"
 132
 133 # Finished!
 134 gdb_test "tfind none" ".*" ""