gdb/testsuite/gdb.arch/amd64-stap-optional-prefix.exp

   1 # Copyright 2014-2022 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This testcase is for PR breakpoints/16889
  17
  18 standard_testfile ".S"
  19
  20 if { ![istarget "x86_64-*-*"] || ![is_lp64_target] } {
  21     verbose "Skipping $testfile.exp"
  22     return
  23 }
  24
  25 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
  26     return -1
  27 }
  28
  29 # Helper procedure to go to probe NAME
  30
  31 proc goto_probe { name } {
  32     global decimal hex
  33
  34     gdb_test "break -pstap $name" "Breakpoint $decimal at $hex"
  35     gdb_test "continue" "Breakpoint $decimal, main \\(\\) at .*\r\n.*STAP_PROBE1.*${name},.*\\)"
  36 }
  37
  38 # Helper procedure to test the probe's argument
  39
  40 proc test_probe_value { value reg_val } {
  41     gdb_test "print \$_probe_argc" "= 1"
  42     gdb_test "print \$_probe_arg0" "= $value"
  43     gdb_test "print \$_probe_arg0 == *((unsigned int *) (${reg_val}))" "= 1"
  44 }
  45
  46 proc test_probe_value_without_reg { value } {
  47     gdb_test "print \$_probe_argc" "= 1"
  48     gdb_test "print \$_probe_arg0" "= $value"
  49 }
  50
  51 if { ![runto_main] } {
  52     return -1
  53 }
  54
  55 foreach probe_name [list "foo" "bar" "foo_prefix" "bar_prefix"] \
  56     probe_val [list "42" "42" "42" "42"] \
  57     probe_reg_val [list "\$rsp" "\$rbp - 8" "\$rsp" "\$rbp - 8"] {
  58     with_test_prefix $probe_name {
  59         goto_probe $probe_name
  60         test_probe_value $probe_val $probe_reg_val
  61     }
  62 }
  63
  64 # Testing normal probes, with several prefixes.
  65
  66 set normal_probes_names { }
  67
  68 foreach bit [list 8 16 32 64] {
  69     lappend normal_probes_names "uint${bit}_probe"
  70     lappend normal_probes_names "int${bit}_probe"
  71 }
  72
  73 foreach probe_name $normal_probes_names \
  74     probe_val [list 8 -8 16 -16 32 -32 64 -64] {
  75     with_test_prefix $probe_name {
  76         goto_probe $probe_name
  77         test_probe_value_without_reg $probe_val
  78     }
  79 }
  80
  81 # Testing the fail probes.
  82
  83 with_test_prefix "fail_probe" {
  84     goto_probe "fail_probe"
  85     gdb_test "print \$_probe_arg0" "warning: unrecognized bitness `-7' for probe `fail_probe'\r\nInvalid probe argument 0 -- probe has 0 arguments available"
  86 }
  87
  88 with_test_prefix "fail2_probe" {
  89     goto_probe "fail2_probe"
  90     gdb_test "print \$_probe_arg0" "Unknown numeric token on expression `23-@\\\$16'."
  91 }