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

   1 # Copyright 2011-2016 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 [prepare_for_testing $expfile $executable $srcfile \
  25         [list debug $additional_flags]] {
  26     untested "failed to prepare for trace tests"
  27     return -1
  28 }
  29
  30 if ![runto_main] {
  31     fail "Can't run to main to check for trace support"
  32     return -1
  33 }
  34
  35 if ![gdb_target_supports_trace] {
  36     unsupported "target does not support trace"
  37     return -1
  38 }
  39
  40 set libipa [get_in_proc_agent]
  41 gdb_load_shlibs $libipa
  42
  43 # Can't use prepare_for_testing, because that splits compiling into
  44 # building objects and then linking, and we'd fail with "linker input
  45 # file unused because linking not done" when building the object.
  46
  47 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  48           executable [list debug $additional_flags shlib=$libipa] ] != "" } {
  49     untested "failed to compile ftrace tests"
  50     return -1
  51 }
  52
  53 clean_restart ${executable}
  54
  55 if ![runto_main] {
  56     fail "Can't run to main for ftrace tests"
  57     return 0
  58 }
  59
  60 if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
  61     untested "Could not find IPA lib loaded"
  62     return 1
  63 }
  64
  65 proc test_tracepoints { trace_command condition num_frames { kfail_proc 0 } } {
  66     global executable gdb_prompt
  67
  68     clean_restart ${executable}
  69
  70     if ![runto_main] {
  71         fail "Can't run to main for ftrace tests"
  72         return 0
  73     }
  74
  75     gdb_test "break begin" ".*" ""
  76
  77     gdb_test "break end" ".*" ""
  78
  79     with_test_prefix "${trace_command}: ${condition}" {
  80
  81         gdb_test "${trace_command} set_point if ${condition}" \
  82             "\(Fast t|T\)racepoint .*" \
  83             "set tracepoint"
  84
  85         gdb_test "continue" ".*Breakpoint \[0-9\]+, begin .*" \
  86             "advance to trace begin"
  87
  88         gdb_test_no_output "tstart" "start trace experiment"
  89
  90         gdb_test_multiple "continue" "advance through tracing" {
  91             -re ".*Breakpoint \[0-9\]+, end .*$gdb_prompt $" {
  92                 pass "advance through tracing"
  93             }
  94             -re "Program received signal SIGSEGV, Segmentation fault\\..*$gdb_prompt $" {
  95                 if { $kfail_proc != 0 } {
  96                     $kfail_proc $trace_command
  97                 }
  98                 fail "advance through tracing"
  99             }
 100         }
 101
 102         if { $kfail_proc != 0 } {
 103             $kfail_proc $trace_command
 104         }
 105         gdb_test "tstatus" \
 106             ".*Trace .*Collected $num_frames .*" \
 107             "check $num_frames frames were collected."
 108
 109         gdb_test "tstop" "" ""
 110     }
 111 }
 112
 113 # These callbacks identify known failures for certain architectures.  They
 114 # are called either if GDBserver crashes or has not traced the correct
 115 # number of frames.
 116
 117 proc 18955_x86_64_failure { trace_command } {
 118     if { $trace_command == "ftrace" } {
 119         setup_kfail "gdb/18955" "x86_64-*-linux*"
 120     }
 121 }
 122
 123 proc 18955_i386_failure { trace_command } {
 124     if { $trace_command == "ftrace" } {
 125         setup_kfail "gdb/18955" "i\[34567\]86-*-*"
 126     }
 127 }
 128
 129 foreach trace_command { "trace" "ftrace" } {
 130     # This condition is always true as the PC should be set to the tracepoint
 131     # address when hit.
 132     test_tracepoints $trace_command "\$$pcreg == *set_point" 10
 133
 134     # Can we read local variables?
 135     test_tracepoints $trace_command "anarg == 100 || anarg == 200" 2 18955_x86_64_failure
 136     # Can we read global variables?
 137     test_tracepoints $trace_command "anarg == 100 && globvar == 1" 1 18955_x86_64_failure
 138
 139     # Test various operations to cover as many opcodes as possible.
 140     test_tracepoints $trace_command "21 + 21 == 42" 10
 141     test_tracepoints $trace_command "21 - 21 == 0" 10
 142     test_tracepoints $trace_command "21 * 2 == 42" 10
 143     test_tracepoints $trace_command "21 << 1 == 42" 10
 144     test_tracepoints $trace_command "42 >> 1 == 21" 10
 145     test_tracepoints $trace_command "-(21 << 1) == -42" 10
 146     test_tracepoints $trace_command "-42 >> 1 == -21" 10
 147     test_tracepoints $trace_command "(0xabababab & 0x0000ffff) == 0xabab" 10
 148     test_tracepoints $trace_command "(0xabababab | 0x0000ffff) == 0xababffff" 10
 149     test_tracepoints $trace_command "(0xaaaaaaaa ^ 0x55555555) == 0xffffffff" 10
 150     test_tracepoints $trace_command "~0xaaaaaaaa == 0x55555555" 10
 151     test_tracepoints $trace_command "21 < 42" 10
 152     test_tracepoints $trace_command "42 <= 42" 10
 153     test_tracepoints $trace_command "42 >= 42" 10
 154     test_tracepoints $trace_command "42 > 21" 10
 155     test_tracepoints $trace_command "(21 < 42 ? 0 : 1) == 0" 10 18955_i386_failure
 156     test_tracepoints $trace_command "(42 <= 42 ? 0 : 1) == 0" 10
 157     test_tracepoints $trace_command "(42 >= 42 ? 0 : 1) == 0" 10
 158     test_tracepoints $trace_command "(42 > 21 ? 0 : 1) == 0" 10 18955_i386_failure
 159     test_tracepoints $trace_command "\$trace_timestamp >= 0" 10
 160 }