gdb/testsuite/gdb.trace/trace-enable-disable.exp

   1 # Copyright 2015-2020 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 if {[skip_shlib_tests]} {
  18     return 0
  19 }
  20
  21 standard_testfile
  22 set executable $testfile
  23 set expfile $testfile.exp
  24
  25 # Some targets have leading underscores on assembly symbols.
  26 set options [list debug [gdb_target_symbol_prefix_flags]]
  27
  28 # Check that the target supports trace.
  29 if ![gdb_trace_common_supports_arch] {
  30     unsupported "no trace-common.h support for arch"
  31     return -1
  32 }
  33 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  34     untested "failed to compile"
  35     return -1
  36 }
  37
  38 clean_restart ${testfile}
  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 # Compile the test case with the in-process agent library.
  51 set libipa [get_in_proc_agent]
  52 gdb_load_shlib $libipa
  53
  54 lappend options shlib=$libipa
  55
  56 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  57     untested "failed to compile with in-process agent library"
  58     return -1
  59 }
  60
  61 # This test makes sure that disabling and enabling tracepoints works
  62 # correctly.  TRACEPOINT_CMD is the command used to set tracepoints
  63 # (e.g. trace or ftrace).
  64
  65 proc test_tracepoint_enable_disable { tracepoint_cmd } {
  66     with_test_prefix "test_tracepoint_enable_disable $tracepoint_cmd" {
  67         global executable
  68         clean_restart ${executable}
  69
  70         set expected 0
  71
  72         if ![runto_main] {
  73             fail "can't run to main."
  74             return -1
  75         }
  76
  77         gdb_test "$tracepoint_cmd point_a" "(Tracepoint|Fast tracepoint) 2.*"
  78         gdb_test "$tracepoint_cmd point_b" "(Tracepoint|Fast tracepoint) 3.*"
  79         gdb_breakpoint "break_here"
  80         gdb_test_no_output "tstart"
  81
  82         # Test that tracepoints start enabled
  83         with_test_prefix "start" {
  84             gdb_continue "break_here"
  85             incr expected 2
  86             gdb_test "tstatus" "Collected $expected trace frames.*"
  87         }
  88
  89         # Test that disabling works
  90         with_test_prefix "disable #1" {
  91             gdb_test_no_output "disable 2"
  92             gdb_continue "break_here"
  93             incr expected 1
  94             gdb_test "tstatus" "Collected $expected trace frames.*"
  95         }
  96
  97         with_test_prefix "disable #2" {
  98             gdb_test_no_output "disable 3"
  99             gdb_continue "break_here"
 100             gdb_test "tstatus" "Collected $expected trace frames.*"
 101         }
 102
 103         # Test that disabling an already disabled tracepoint works
 104         with_test_prefix "disable #3" {
 105             gdb_test_no_output "disable 2"
 106             gdb_continue "break_here"
 107             gdb_test "tstatus" "Collected $expected trace frames.*"
 108         }
 109
 110         # Test that enabling works
 111         with_test_prefix "enable #1" {
 112             gdb_test_no_output "enable 2"
 113             gdb_continue "break_here"
 114             incr expected 1
 115             gdb_test "tstatus" "Collected $expected trace frames.*"
 116         }
 117
 118         with_test_prefix "enable #2" {
 119             gdb_test_no_output "enable 3"
 120             gdb_continue "break_here"
 121             incr expected 2
 122             gdb_test "tstatus" "Collected $expected trace frames.*"
 123         }
 124
 125         # Test that enabling an already enabled tracepoint works
 126         with_test_prefix "enable #3" {
 127             gdb_test_no_output "enable 3"
 128             gdb_continue "break_here"
 129             incr expected 2
 130             gdb_test "tstatus" "Collected $expected trace frames.*"
 131         }
 132     }
 133 }
 134
 135 test_tracepoint_enable_disable trace
 136 test_tracepoint_enable_disable ftrace