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      1 # Copyright (C) 2017-2024 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 symbol lookup when there are multiple circular imports.
     17 
     18 load_lib "d-support.exp"
     19 load_lib "dwarf.exp"
     20 
     21 require allow_d_tests dwarf2_support
     22 
     23 standard_testfile watch-loc.c watch-loc-dw.S
     24 
     25 lassign [function_range _Dmain ${srcdir}/${subdir}/${srcfile}] \
     26     dmain_start dmain_length
     27 
     28 
     29 # Make some DWARF for the test.
     30 set asm_file [standard_output_file $srcfile2]
     31 Dwarf::assemble $asm_file {
     32     global dmain_start dmain_length
     33 
     34     cu { label cu_start } {
     35 	compile_unit {
     36 	    {language @DW_LANG_D}
     37 	} {
     38 	    declare_labels watch_module_label watch_struct_label
     39 
     40 	    watch_module_label: module {
     41 		{name watch}
     42 	    } {
     43 		watch_struct_label: structure_type {
     44 		    {name tstruct}
     45 		    {byte_size 1 data1}
     46 		}
     47 
     48 		tag_variable {
     49 		    {name my_data}
     50 		    {type :$watch_struct_label}
     51 		    {location {
     52 			addr [gdb_target_symbol my_data]
     53 		    } SPECIAL_expr}
     54 		    {external 1 flag}
     55 		}
     56 
     57 		subprogram {
     58 		    {MACRO_AT_func { "_Dmain" }}
     59 		    {external 1 flag_present}
     60 		}
     61 	    }
     62 	}
     63     }
     64 
     65     aranges {} cu_start {
     66 	arange {} $dmain_start $dmain_length
     67     }
     68 }
     69 
     70 if { [prepare_for_testing "failed to prepare" ${testfile} \
     71           [list $srcfile $asm_file] {nodebug}] } {
     72     return -1
     73 }
     74 
     75 gdb_test_no_output "set language d"
     76 
     77 if {![runto "_Dmain"]} {
     78     return -1
     79 }
     80 
     81 # watch -l will rewrite the expression to "*(watch.tstruct *) 0x12345",
     82 # this should not cause syntax error in the cast expression.
     83 gdb_test "watch -l my_data" ".*atchpoint \[0-9\]+: -location my_data"
     84 
     85 # Same test as above, but done explicitly.
     86 gdb_test "print *(watch.tstruct *) &my_data" "{<No data fields>}"
     87