gdb/testsuite/gdb.cp/infcall-nodebug.exp.tcl

   1 # This testcase is part of GDB, the GNU debugger.
   2 # Copyright 2018-2023 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # Test function calls on C++ functions that have no debug information.
  18 # See gdb/22736.  Put the called function in a different object to ensure
  19 # the rest of the test can be complied with debug information.  Whilst we
  20 # are at it, also test functions with debug information and C functions too.
  21
  22 if [target_info exists gdb,cannot_call_functions] {
  23     unsupported "this target can not call functions"
  24     continue
  25 }
  26
  27 set main_basename infcall-nodebug-main
  28 set lib_basename infcall-nodebug-lib
  29 standard_testfile ${main_basename}.c ${lib_basename}.c
  30
  31 set mainsrc "${srcdir}/${subdir}/${srcfile}"
  32 set libsrc "${srcdir}/${subdir}/${srcfile2}"
  33
  34 # Build both source files to objects using language LANG. Use SYMBOLS to build
  35 # with either debug symbols or without - but always build the main file with
  36 # debug.  Then make function calls across the files.
  37
  38 proc build_and_run_test { lang symbols } {
  39
  40     global main_basename lib_basename mainsrc libsrc binfile testfile
  41     global gdb_prompt
  42
  43     if { $symbols == "debug" } {
  44         set debug_flags "debug"
  45     } else {
  46         set debug_flags ""
  47     }
  48
  49     # Compile both files to objects, then link together.
  50
  51     set main_flags "$lang debug"
  52     set lib_flags "$lang $debug_flags"
  53     set main_o [standard_output_file ${main_basename}.o]
  54     set lib_o [standard_output_file ${lib_basename}.o]
  55     set binfile [standard_output_file ${testfile}]
  56
  57     if { [gdb_compile $mainsrc $main_o object ${main_flags}] != "" } {
  58         untested "failed to compile main file to object"
  59         return -1
  60     }
  61
  62     if { [gdb_compile $libsrc $lib_o object ${lib_flags}] != "" } {
  63         untested "failed to compile secondary file to object"
  64         return -1
  65     }
  66
  67     if { [gdb_compile "$main_o $lib_o" ${binfile} executable ""] != "" } {
  68         untested "failed to compile"
  69         return -1
  70     }
  71
  72     # Startup and run to main.
  73
  74     clean_restart $binfile
  75
  76     if ![runto_main] then {
  77         return
  78     }
  79
  80     # Function call with cast.
  81
  82     gdb_test "p (int)foo()" " = 1"
  83
  84     # Function call without cast.  Will error if there are no debug symbols.
  85
  86     set test "p foo()"
  87     gdb_test_multiple $test $test {
  88         -re " = 1\r\n$gdb_prompt " {
  89             gdb_assert [ string equal $symbols "debug" ]
  90             pass $test
  91         }
  92         -re "has unknown return type; cast the call to its declared return type\r\n$gdb_prompt " {
  93             gdb_assert ![ string equal $symbols "debug" ]
  94             pass $test
  95         }
  96     }
  97
  98 }
  99
 100 build_and_run_test $lang $debug