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      1 # This testcase is part of GDB, the GNU debugger.
      2 # Copyright 2018-2024 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
    101