1# Copyright 2014-2016 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# Test that GDB determines the frame's language based on the comp 17# unit's language, even if the file has an unknown file extension, 18# such as ".txt". 19 20load_lib dwarf.exp 21 22# This test can only be run on targets which support DWARF-2 and use 23# gas. 24if {![dwarf2_support]} { 25 return 0 26} 27 28standard_testfile .c comp-unit-lang.S 29 30# Assemble the DWARF using CU_LANG as compilation unit's language. 31# Run to a function in that compilation unit and check that GDB 32# figures out that the language is GDB_LANG. 33 34proc do_test {cu_lang gdb_lang} { 35 global testfile srcfile srcfile2 36 37 # Make some DWARF for the test. 38 set asm_file [standard_output_file $srcfile2] 39 Dwarf::assemble $asm_file { 40 upvar cu_lang cu_lang 41 42 # Creating a CU with 4-byte addresses lets this test link on 43 # both 32- and 64-bit machines. 44 cu { addr_size 4 } { 45 extern func_start func_end 46 47 compile_unit { 48 {name file1.txt} 49 {language @$cu_lang} 50 {low_pc func_start addr} 51 {high_pc func_end addr} 52 } { 53 subprogram { 54 {external 1 flag} 55 {name func} 56 {low_pc func_start addr} 57 {high_pc func_end addr} 58 } { 59 } 60 } 61 } 62 } 63 64 if { [prepare_for_testing "failed to prepare" ${testfile} \ 65 [list $srcfile $asm_file] {nodebug}] } { 66 return -1 67 } 68 69 if ![runto func] { 70 return -1 71 } 72 73 gdb_test "show language" "\"auto; currently $gdb_lang\".*" 74} 75 76# Some paths in the debugger fall back to C. Check C++ as well to 77# make sure the test doesn't happen to work because of such a 78# fallback. 79do_test DW_LANG_C "c" 80do_test DW_LANG_C_plus_plus "c\\+\\+" 81