# Copyright 2019 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

load_lib dwarf-lib.exp
load_lib dwarf.exp

set asm_file no-multifile-prop-dw.S

Dwarf::assemble $asm_file {

    # CU 1
    cu {} {
	DW_TAG_compile_unit {
	    {DW_AT_language @DW_LANG_C_plus_plus}
	    {DW_AT_name     1.c}
	    {DW_AT_comp_dir /tmp}
	} {
	    declare_labels integer_label var_label

	    integer_label: DW_TAG_base_type {
		{DW_AT_byte_size 4 DW_FORM_data1}
		{DW_AT_encoding  @DW_ATE_signed}
		{DW_AT_name      integer}
	    }

	    var_label: DW_TAG_variable {
		{DW_AT_name foo1}
		{DW_AT_type :$integer_label}
		{external 1 flag}
	    }

	    DW_TAG_variable {
		{DW_AT_name foo2}
		{DW_AT_type :$integer_label}
		{DW_AT_location {
		    DW_OP_GNU_implicit_pointer $var_label 0
		} SPECIAL_expr}
		{external 1 flag}
	    }
	}
    }

    # CU 2
    cu {} {
	DW_TAG_compile_unit {
	    {DW_AT_language @DW_LANG_C_plus_plus}
	    {DW_AT_name     2.c}
	    {DW_AT_comp_dir /tmp}
	} {
	    declare_labels integer_label var_label

	    integer_label: DW_TAG_base_type {
		{DW_AT_byte_size 4 DW_FORM_data1}
		{DW_AT_encoding  @DW_ATE_signed}
		{DW_AT_name      integer}
	    }

	    var_label: DW_TAG_variable {
		{DW_AT_name foo1}
		{DW_AT_type :$integer_label}
		{external 1 flag}
	    }

	    DW_TAG_imported_declaration {
		{DW_AT_import :$var_label}
	    }
	}
    }

    # CU 3
    cu {} {
	DW_TAG_compile_unit {
	    {DW_AT_language @DW_LANG_C_plus_plus}
	    {DW_AT_name     3.c}
	    {DW_AT_comp_dir /tmp}
	} {
	    declare_labels integer_label

	    integer_label: DW_TAG_base_type {
		{DW_AT_byte_size 4 DW_FORM_data1}
		{DW_AT_encoding  @DW_ATE_signed}
		{DW_AT_name      integer}
	    }

	    DW_TAG_variable {
		{DW_AT_name foo1}
		{DW_AT_type :$integer_label}
		{external 1 flag}
	    }

	}
    }

    # CU 4
    cu {} {
	DW_TAG_compile_unit {
	    {DW_AT_language @DW_LANG_C_plus_plus}
	    {DW_AT_name     4.c}
	    {DW_AT_comp_dir /tmp}
	} {
	    declare_labels integer_label var_label

	    integer_label: DW_TAG_base_type {
		{DW_AT_byte_size 4 DW_FORM_data1}
		{DW_AT_encoding  @DW_ATE_signed}
		{DW_AT_name      integer}
	    }

	    var_label: DW_TAG_variable {
		{DW_AT_name foo1}
		{DW_AT_type :$integer_label}
		{external 1 flag}
	    }

	    DW_TAG_imported_declaration {
		{DW_AT_import :$var_label}
	    }
	}
    }
}