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

   1 # Copyright 2015-2024 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 require allow_shlib_tests
  18
  19 standard_testfile
  20 set executable $testfile
  21 set expfile $testfile.exp
  22
  23 # Some targets have leading underscores on assembly symbols.
  24 set options [list debug [gdb_target_symbol_prefix_flags]]
  25
  26 # Check that the target supports trace.
  27 require gdb_trace_common_supports_arch
  28 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  29     untested "failed to compile"
  30     return -1
  31 }
  32
  33 clean_restart ${testfile}
  34
  35 if ![runto_main] {
  36     return -1
  37 }
  38
  39 if ![gdb_target_supports_trace] {
  40     unsupported "target does not support trace"
  41     return -1
  42 }
  43
  44 # Compile the test case with the in-process agent library.
  45 set libipa [get_in_proc_agent]
  46 gdb_load_shlib $libipa
  47
  48 lappend options shlib=$libipa
  49
  50 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  51     untested "failed to compile with in-process agent library"
  52     return -1
  53 }
  54
  55 # This test makes sure that disabling and enabling tracepoints works
  56 # correctly.  TRACEPOINT_CMD is the command used to set tracepoints
  57 # (e.g. trace or ftrace).
  58
  59 proc test_tracepoint_enable_disable { tracepoint_cmd } {
  60     with_test_prefix "test_tracepoint_enable_disable $tracepoint_cmd" {
  61         global executable
  62         clean_restart ${executable}
  63
  64         set expected 0
  65
  66         if ![runto_main] {
  67             return -1
  68         }
  69
  70         gdb_test "$tracepoint_cmd point_a" "(Tracepoint|Fast tracepoint) 2.*"
  71         gdb_test "$tracepoint_cmd point_b" "(Tracepoint|Fast tracepoint) 3.*"
  72         gdb_breakpoint "break_here"
  73         gdb_test_no_output "tstart"
  74
  75         # Test that tracepoints start enabled
  76         with_test_prefix "start" {
  77             gdb_continue "break_here"
  78             incr expected 2
  79             gdb_test "tstatus" "Collected $expected trace frames.*"
  80         }
  81
  82         # Test that disabling works
  83         with_test_prefix "disable #1" {
  84             gdb_test_no_output "disable 2"
  85             gdb_continue "break_here"
  86             incr expected 1
  87             gdb_test "tstatus" "Collected $expected trace frames.*"
  88         }
  89
  90         with_test_prefix "disable #2" {
  91             gdb_test_no_output "disable 3"
  92             gdb_continue "break_here"
  93             gdb_test "tstatus" "Collected $expected trace frames.*"
  94         }
  95
  96         # Test that disabling an already disabled tracepoint works
  97         with_test_prefix "disable #3" {
  98             gdb_test_no_output "disable 2"
  99             gdb_continue "break_here"
 100             gdb_test "tstatus" "Collected $expected trace frames.*"
 101         }
 102
 103         # Test that enabling works
 104         with_test_prefix "enable #1" {
 105             gdb_test_no_output "enable 2"
 106             gdb_continue "break_here"
 107             incr expected 1
 108             gdb_test "tstatus" "Collected $expected trace frames.*"
 109         }
 110
 111         with_test_prefix "enable #2" {
 112             gdb_test_no_output "enable 3"
 113             gdb_continue "break_here"
 114             incr expected 2
 115             gdb_test "tstatus" "Collected $expected trace frames.*"
 116         }
 117
 118         # Test that enabling an already enabled tracepoint works
 119         with_test_prefix "enable #3" {
 120             gdb_test_no_output "enable 3"
 121             gdb_continue "break_here"
 122             incr expected 2
 123             gdb_test "tstatus" "Collected $expected trace frames.*"
 124         }
 125     }
 126 }
 127
 128 test_tracepoint_enable_disable trace
 129 test_tracepoint_enable_disable ftrace