gdb/testsuite/gdb.trace/mi-trace-frame-collected.exp

   1 # Copyright 2013-2018 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 actions.c
  19
  20 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug}] } {
  21     return -1
  22 }
  23
  24 if ![runto_main] {
  25     fail "can't run to main to check for trace support"
  26     return -1
  27 }
  28
  29 if ![gdb_target_supports_trace] {
  30     unsupported "current target does not support trace"
  31     return -1
  32 }
  33
  34 gdb_exit
  35
  36 load_lib mi-support.exp
  37 set MIFLAGS "-i=mi"
  38
  39 if [mi_gdb_start] {
  40     return
  41 }
  42 mi_run_to_main
  43
  44 mi_gdb_test "-break-insert end" \
  45     "\\^done,bkpt=\{number=\"${decimal}\",type=\"breakpoint\".*\"\}" \
  46     "insert tracepoint on end"
  47 mi_gdb_test "-break-insert -a gdb_recursion_test" \
  48     "\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
  49     "insert tracepoint on gdb_recursion_test"
  50
  51 mi_gdb_test "-trace-define-variable \$tsv 1" {.*\^done} \
  52     "-trace-define-variable"
  53
  54 mi_gdb_test "-break-commands 3 \"collect gdb_char_test\" \"collect gdb_union1_test\" \"collect gdb_struct1_test.l\" \"collect gdb_arr_test\[0\]\" \"collect $${pcreg}\" \"teval \$tsv += 1\" \"collect \$tsv\" \"end\" " \
  55     {\^done} "set action"
  56
  57 mi_gdb_test "-break-insert -a gdb_c_test" \
  58     "\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
  59     "insert tracepoint on gdb_c_test"
  60
  61 # Define an action.
  62 # Collect a global variable to be sure no registers are collected
  63 # except PC.
  64 mi_gdb_test "-break-commands 4 \"collect gdb_char_test\" \"end\" " \
  65     {\^done} "set action on tracepoint 4"
  66
  67 mi_gdb_test "-trace-start" {.*\^done} "trace start"
  68 mi_send_resuming_command "exec-continue" "continuing to end"
  69 mi_expect_stop \
  70     "breakpoint-hit" "end" ".*" ".*" ".*" {"" "disp=\"keep\""} \
  71     "stop at end"
  72 mi_gdb_test "-trace-stop" {.*\^done,stop-reason=.*} "trace stop"
  73
  74 # Save trace frames to tfile.
  75 set tracefile [standard_output_file ${testfile}]
  76 mi_gdb_test "-trace-save ${tracefile}.tf" ".*\\^done" \
  77     "save tfile trace file"
  78 # Save trace frames to ctf.
  79 mi_gdb_test "-trace-save -ctf ${tracefile}.ctf" ".*\\^done" \
  80     "save ctf trace file"
  81
  82 # Test the MI command '-trace-frame-collected' with DATA_SOURCE as
  83 # trace data source.
  84
  85 proc test_trace_frame_collected { data_source } {
  86     global decimal hex
  87     global mi_gdb_prompt
  88
  89     with_test_prefix "$data_source" {
  90         mi_gdb_test "-trace-find frame-number 0" \
  91             ".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
  92             "-trace-find frame-number 0"
  93
  94         set reg_pattern "\{number=\"$decimal\",value=\"$hex\"\}"
  95
  96         # Test MI command '-trace-frame-collected' dumps only
  97         # collected registers.
  98
  99         # While the tracepoint has no explicit action that causes
 100         # collection of registers other than the PC, some
 101         # architectures manage to collect or guess more than that.
 102         if { [istarget "s390*-*-*"] } {
 103             # On s390 PC is a pseudo-register - collecting it also
 104             # collects the underlying PSWA register.
 105             if { "$data_source" != "tfile" } {
 106                 set reg_pattern "$reg_pattern,$reg_pattern"
 107             } else {
 108                 # For tfile, PSWM and CC are also guessed.
 109                 set reg_pattern "$reg_pattern,$reg_pattern,$reg_pattern,$reg_pattern"
 110             }
 111         } elseif {[is_amd64_regs_target] && [is_ilp32_target]} {
 112             # x32.  While on the 64-bit ABI gdb only exposes 64-bit
 113             # $pc/$rip, on x32, GDB exposes 32-bit $eip as well, as a
 114             # pseudo-register.  Thus, collecting $pc/$rip
 115             # automatically always collects $eip as well.
 116             set reg_pattern "$reg_pattern,$reg_pattern"
 117         }
 118
 119         mi_gdb_test "-trace-frame-collected" \
 120             "\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",value=\".*\"\}\\\],computed-expressions=\\\[\\\],registers=\\\[$reg_pattern\\\],tvars=\\\[\\\],memory=\\\[\{address=\"$hex\",length=\"1\"\}\\\]"\
 121             "-trace-frame-collected (register)"
 122
 123         mi_gdb_test "-trace-find frame-number 1" \
 124             ".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"1\",frame=\{.*" \
 125             "-trace-find frame-number 1"
 126
 127         # Test MI command '-trace-frame-collected'
 128         mi_gdb_test "-trace-frame-collected" \
 129             "\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",value=\".*\"\},\{name=\"gdb_union1_test\",value=\".*\"\}\\\],computed-expressions=\\\[\{name=\"gdb_struct1_test\.l\",.*\},\{name=\"gdb_arr_test\\\[0\\\]\",.*\}\\\],registers=\\\[.*\\\],tvars=\\\[\{name=\"\\\$tsv\",current=\"2\"\}\\\],memory=\\\[\{address=\"$hex\",length=\"1\"\},.*\\\]"\
 130             "-trace-frame-collected"
 131         mi_gdb_test "-trace-frame-collected --var-print-values 2 --comp-print-values --simple-values --registers-format x --memory-contents" \
 132             "\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",type=\"char\",value=\".*\"\},\{name=\"gdb_union1_test\",type=\"union GDB_UNION_TEST\"\}\\\],computed-expressions=\\\[.*\\\],registers=\\\[.*\\\],tvars=\\\[\{name=\"\\\$tsv\",current=\"2\"\}\\\],memory=\\\[\{address=\"$hex\",length=\"1\",contents=\".*\"\},.*\\\]" \
 133             "-trace-frame-collected --var-print-values 2 --comp-print-values --simple-values --registers-format x --memory-contents"
 134
 135         mi_gdb_test "-trace-find none" ".*\\^done,found=\"0\".*" \
 136             "-trace-find none"
 137     }
 138 }
 139
 140 test_trace_frame_collected "live"
 141
 142 # Change target to ctf if GDB supports it.
 143 set msg "-target-select ctf"
 144 send_gdb "-target-select ctf ${tracefile}.ctf\n"
 145 gdb_expect {
 146     -re ".*\\^connected.*${mi_gdb_prompt}$" {
 147         # GDB supports ctf, do the test.
 148         test_trace_frame_collected "ctf"
 149     }
 150     -re ".*\\^error,msg=\"Undefined target command.*${mi_gdb_prompt}$" {
 151         # GDB doesn't support ctf, skip the test.
 152         unsupported "gdb does not support ctf target"
 153     }
 154     -re ".*$mi_gdb_prompt$" {
 155         fail "$msg"
 156     }
 157     timeout {
 158         fail "$msg (timeout)"
 159     }
 160 }
 161
 162 # Change target to tfile.
 163 mi_gdb_test "-target-select tfile ${tracefile}.tf" ".*\\^connected.*" \
 164     "-target-select tfile"
 165 test_trace_frame_collected "tfile"
 166
 167 mi_gdb_exit