gdb/testsuite/gdb.trace/trace-condition.exp

   1 # Copyright 2011-2015 Free Software Foundation, Inc.
   2 # This program is free software; you can redistribute it and/or modify
   3 # it under the terms of the GNU General Public License as published by
   4 # the Free Software Foundation; either version 3 of the License, or
   5 # (at your option) any later version.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14
  15 load_lib "trace-support.exp"
  16
  17 standard_testfile
  18 set executable $testfile
  19 set expfile $testfile.exp
  20
  21 # Some targets have leading underscores on assembly symbols.
  22 set additional_flags [gdb_target_symbol_prefix_flags]
  23
  24 if [is_amd64_regs_target] {
  25     set pcreg "\$rip"
  26 } elseif [is_x86_like_target] {
  27     set pcreg "\$eip"
  28 } elseif [is_aarch64_target] {
  29     set pcreg "\$pc"
  30 } else {
  31     set pcreg "\$pc"
  32 }
  33
  34 if [prepare_for_testing $expfile $executable $srcfile \
  35         [list debug $additional_flags]] {
  36     untested "failed to prepare for trace tests"
  37     return -1
  38 }
  39
  40 if ![runto_main] {
  41     fail "Can't run to main to check for trace support"
  42     return -1
  43 }
  44
  45 if ![gdb_target_supports_trace] {
  46     unsupported "target does not support trace"
  47     return -1
  48 }
  49
  50 set libipa [get_in_proc_agent]
  51 gdb_load_shlibs $libipa
  52
  53 # Can't use prepare_for_testing, because that splits compiling into
  54 # building objects and then linking, and we'd fail with "linker input
  55 # file unused because linking not done" when building the object.
  56
  57 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  58           executable [list debug $additional_flags shlib=$libipa] ] != "" } {
  59     untested "failed to compile ftrace tests"
  60     return -1
  61 }
  62
  63 clean_restart ${executable}
  64
  65 if ![runto_main] {
  66     fail "Can't run to main for ftrace tests"
  67     return 0
  68 }
  69
  70 if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
  71     untested "Could not find IPA lib loaded"
  72     return 1
  73 }
  74
  75 proc test_tracepoints { trace_command condition num_frames { kfail_proc 0 } } {
  76     global executable gdb_prompt
  77
  78     clean_restart ${executable}
  79
  80     if ![runto_main] {
  81         fail "Can't run to main for ftrace tests"
  82         return 0
  83     }
  84
  85     gdb_test "break begin" ".*" ""
  86
  87     gdb_test "break end" ".*" ""
  88
  89     with_test_prefix "${trace_command}: ${condition}" {
  90
  91         gdb_test "${trace_command} set_point if ${condition}" \
  92             "\(Fast t|T\)racepoint .*" \
  93             "set tracepoint"
  94
  95         gdb_test "continue" ".*Breakpoint \[0-9\]+, begin .*" \
  96             "advance to trace begin"
  97
  98         gdb_test_no_output "tstart" "start trace experiment"
  99
 100         gdb_test_multiple "continue" "advance through tracing" {
 101             -re ".*Breakpoint \[0-9\]+, end .*$gdb_prompt $" {
 102                 pass "advance through tracing"
 103             }
 104             -re "Program received signal SIGSEGV, Segmentation fault\\..*$gdb_prompt $" {
 105                 if { $kfail_proc != 0 } {
 106                     $kfail_proc $trace_command
 107                 }
 108                 fail "advance through tracing"
 109             }
 110         }
 111
 112         if { $kfail_proc != 0 } {
 113             $kfail_proc $trace_command
 114         }
 115         gdb_test "tstatus" \
 116             ".*Trace .*Collected $num_frames .*" \
 117             "check $num_frames frames were collected."
 118
 119         gdb_test "tstop" "" ""
 120     }
 121 }
 122
 123 # These callbacks identify known failures for certain architectures.  They
 124 # are called either if GDBserver crashes or has not traced the correct
 125 # number of frames.
 126
 127 proc 18955_x86_64_failure { trace_command } {
 128     if { $trace_command == "ftrace" } {
 129         setup_kfail "gdb/18955" "x86_64-*-linux*"
 130     }
 131 }
 132
 133 proc 18955_i386_failure { trace_command } {
 134     if { $trace_command == "ftrace" } {
 135         setup_kfail "gdb/18955" "i\[34567\]86-*-*"
 136     }
 137 }
 138
 139 foreach trace_command { "trace" "ftrace" } {
 140     # This condition is always true as the PC should be set to the tracepoint
 141     # address when hit.
 142     test_tracepoints $trace_command "$pcreg == *set_point" 10
 143
 144     # Can we read local variables?
 145     test_tracepoints $trace_command "anarg == 100 || anarg == 200" 2 18955_x86_64_failure
 146     # Can we read global variables?
 147     test_tracepoints $trace_command "anarg == 100 && globvar == 1" 1 18955_x86_64_failure
 148
 149     # Test various operations to cover as many opcodes as possible.
 150     test_tracepoints $trace_command "21 + 21 == 42" 10
 151     test_tracepoints $trace_command "21 - 21 == 0" 10
 152     test_tracepoints $trace_command "21 * 2 == 42" 10
 153     test_tracepoints $trace_command "21 << 1 == 42" 10
 154     test_tracepoints $trace_command "42 >> 1 == 21" 10
 155     test_tracepoints $trace_command "-21 << 1 == -42" 10
 156     test_tracepoints $trace_command "-42 >> 1 == -21" 10
 157     test_tracepoints $trace_command "(0xabababab & 0x0000ffff) == 0xabab" 10
 158     test_tracepoints $trace_command "(0xabababab | 0x0000ffff) == 0xababffff" 10
 159     test_tracepoints $trace_command "(0xaaaaaaaa ^ 0x55555555) == 0xffffffff" 10
 160     test_tracepoints $trace_command "~0xaaaaaaaa == 0x55555555" 10
 161     test_tracepoints $trace_command "21 < 42" 10
 162     test_tracepoints $trace_command "42 <= 42" 10
 163     test_tracepoints $trace_command "42 >= 42" 10
 164     test_tracepoints $trace_command "42 > 21" 10
 165     test_tracepoints $trace_command "(21 < 42 ? 0 : 1) == 0" 10 18955_i386_failure
 166     test_tracepoints $trace_command "(42 <= 42 ? 0 : 1) == 0" 10
 167     test_tracepoints $trace_command "(42 >= 42 ? 0 : 1) == 0" 10
 168     test_tracepoints $trace_command "(42 > 21 ? 0 : 1) == 0" 10 18955_i386_failure
 169     test_tracepoints $trace_command "\$trace_timestamp >= 0" 10
 170 }