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

   1 # Copyright 2015-2022 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     return -1
  42 }
  43
  44 if ![gdb_target_supports_trace] {
  45     unsupported "target does not support trace"
  46     return -1
  47 }
  48
  49 # Compile the test case with the in-process agent library.
  50 set libipa [get_in_proc_agent]
  51 gdb_load_shlib $libipa
  52
  53 lappend options shlib=$libipa
  54
  55 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
  56     untested "failed to compile with in-process agent library"
  57     return -1
  58 }
  59
  60 # This test makes sure that disabling and enabling tracepoints works
  61 # correctly.  TRACEPOINT_CMD is the command used to set tracepoints
  62 # (e.g. trace or ftrace).
  63
  64 proc test_tracepoint_enable_disable { tracepoint_cmd } {
  65     with_test_prefix "test_tracepoint_enable_disable $tracepoint_cmd" {
  66         global executable
  67         clean_restart ${executable}
  68
  69         set expected 0
  70
  71         if ![runto_main] {
  72             return -1
  73         }
  74
  75         gdb_test "$tracepoint_cmd point_a" "(Tracepoint|Fast tracepoint) 2.*"
  76         gdb_test "$tracepoint_cmd point_b" "(Tracepoint|Fast tracepoint) 3.*"
  77         gdb_breakpoint "break_here"
  78         gdb_test_no_output "tstart"
  79
  80         # Test that tracepoints start enabled
  81         with_test_prefix "start" {
  82             gdb_continue "break_here"
  83             incr expected 2
  84             gdb_test "tstatus" "Collected $expected trace frames.*"
  85         }
  86
  87         # Test that disabling works
  88         with_test_prefix "disable #1" {
  89             gdb_test_no_output "disable 2"
  90             gdb_continue "break_here"
  91             incr expected 1
  92             gdb_test "tstatus" "Collected $expected trace frames.*"
  93         }
  94
  95         with_test_prefix "disable #2" {
  96             gdb_test_no_output "disable 3"
  97             gdb_continue "break_here"
  98             gdb_test "tstatus" "Collected $expected trace frames.*"
  99         }
 100
 101         # Test that disabling an already disabled tracepoint works
 102         with_test_prefix "disable #3" {
 103             gdb_test_no_output "disable 2"
 104             gdb_continue "break_here"
 105             gdb_test "tstatus" "Collected $expected trace frames.*"
 106         }
 107
 108         # Test that enabling works
 109         with_test_prefix "enable #1" {
 110             gdb_test_no_output "enable 2"
 111             gdb_continue "break_here"
 112             incr expected 1
 113             gdb_test "tstatus" "Collected $expected trace frames.*"
 114         }
 115
 116         with_test_prefix "enable #2" {
 117             gdb_test_no_output "enable 3"
 118             gdb_continue "break_here"
 119             incr expected 2
 120             gdb_test "tstatus" "Collected $expected trace frames.*"
 121         }
 122
 123         # Test that enabling an already enabled tracepoint works
 124         with_test_prefix "enable #3" {
 125             gdb_test_no_output "enable 3"
 126             gdb_continue "break_here"
 127             incr expected 2
 128             gdb_test "tstatus" "Collected $expected trace frames.*"
 129         }
 130     }
 131 }
 132
 133 test_tracepoint_enable_disable trace
 134 test_tracepoint_enable_disable ftrace