gdb/testsuite/gdb.dwarf2/clang-cli-macro.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2022-2024 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Clang has this bug where it puts the macros defined on the command-line
  19 # after the main file portion (see PR 29034 and
  20 # https://github.com/llvm/llvm-project/issues/54506 )
  21 # Test that GDB is still able to print macros in clang versions that
  22 # have this bug.
  23
  24 load_lib dwarf.exp
  25
  26 require dwarf2_support
  27
  28 standard_testfile .c .S
  29
  30 lassign [function_range main $srcdir/$subdir/$srcfile] \
  31     main_start main_len
  32
  33 set asm_file [standard_output_file $srcfile2]
  34
  35 Dwarf::assemble $asm_file {
  36     declare_labels L cu_macros
  37
  38     cu {} {
  39         DW_TAG_compile_unit {
  40             {DW_AT_producer "clang version 15.0.0"}
  41             {DW_AT_language @DW_LANG_C11}
  42             {DW_AT_name $::srcfile}
  43             {DW_AT_macros $cu_macros DW_FORM_sec_offset}
  44             {DW_AT_stmt_list $L DW_FORM_sec_offset}
  45         } {
  46             declare_labels int_type
  47
  48             int_type: DW_TAG_base_type {
  49                 {DW_AT_byte_size 4 DW_FORM_sdata}
  50                 {DW_AT_encoding  @DW_ATE_signed}
  51                 {DW_AT_name int}
  52             }
  53             DW_TAG_subprogram {
  54                 {MACRO_AT_func {main}}
  55                 {type :$int_type}
  56             }
  57         }
  58     }
  59     lines {version 2} L {
  60         file_name $::srcfile 1
  61         program {
  62             DW_LNE_set_address $::main_start
  63             line 10
  64             DW_LNS_copy
  65             DW_LNE_set_address "$::main_start + $::main_len"
  66             DW_LNE_end_sequence
  67         }
  68     }
  69
  70     # Define the .debug_macro section.
  71     macro {
  72         cu_macros: unit {
  73             "debug-line-offset-label" $L
  74         } {
  75             start_file 0 1
  76                 # A macro defined at line 1 of the main file.
  77                 define 1 "TWO 2"
  78             end_file
  79             define 0 "ONE 1"
  80         }
  81     }
  82 }
  83
  84 if {[prepare_for_testing "failed to prepare" $testfile [list $srcfile $asm_file] {nodebug}]} {
  85     return
  86 }
  87
  88 if {![runto_main]} {
  89     return
  90 }
  91
  92 gdb_test "print TWO" "= 2" "print simple macro"
  93 gdb_test "print ONE" "= 1" "print defined from CLI"