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

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2022 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 if {![dwarf2_support]} {
  27     return 0
  28 }
  29 if {![test_compiler_info gcc-*-*]} {
  30     untested "dwarf assembler needs GCC"
  31 }
  32
  33 standard_testfile .c .S
  34
  35 lassign [function_range main $srcdir/$subdir/$srcfile] \
  36     main_start main_len
  37
  38 set asm_file [standard_output_file $srcfile2]
  39
  40 Dwarf::assemble $asm_file {
  41     declare_labels L cu_macros
  42
  43     cu {} {
  44         DW_TAG_compile_unit {
  45             {DW_AT_producer "clang version 15.0.0"}
  46             {DW_AT_language @DW_LANG_C11}
  47             {DW_AT_name $::srcfile}
  48             {DW_AT_macros $cu_macros DW_FORM_sec_offset}
  49             {DW_AT_stmt_list $L DW_FORM_sec_offset}
  50         } {
  51             declare_labels int_type
  52
  53             int_type: DW_TAG_base_type {
  54                 {DW_AT_byte_size 4 DW_FORM_sdata}
  55                 {DW_AT_encoding  @DW_ATE_signed}
  56                 {DW_AT_name int}
  57             }
  58             DW_TAG_subprogram {
  59                 {MACRO_AT_func {main}}
  60                 {type :$int_type}
  61             }
  62         }
  63     }
  64     lines {version 2} L {
  65         file_name $::srcfile 1
  66         program {
  67             DW_LNE_set_address $::main_start
  68             line 10
  69             DW_LNS_copy
  70             DW_LNE_set_address "$::main_start + $::main_len"
  71             DW_LNE_end_sequence
  72         }
  73     }
  74
  75     # Define the .debug_macro section.
  76     macro {
  77         cu_macros: unit {
  78             "debug-line-offset-label" $L
  79         } {
  80             start_file 0 1
  81                 # A macro defined at line 1 of the main file.
  82                 define 1 "TWO 2"
  83             end_file
  84             define 0 "ONE 1"
  85         }
  86     }
  87 }
  88
  89 if {[prepare_for_testing "failed to prepare" $testfile [list $srcfile $asm_file] {nodebug}]} {
  90     return
  91 }
  92
  93 if {![runto_main]} {
  94     return
  95 }
  96
  97 gdb_test "print TWO" "= 2" "print simple macro"
  98 gdb_test "print ONE" "= 1" "print defined from CLI"