#!/bin/sh

# SPDX-FileCopyrightText: 2022 Jan Engelhardt <jengelh@inai.de>
# SPDX-FileCopyrightText: 2022 Ralf Habacker <ralf.habacker@freenet.de>
# SPDX-License-Identifier: GPL-2.0-or-later

# get source filenames from dwarf debug sections

gawk '
BEGIN { state = 0 }

state == 1 && $2 ~ /DW_AT_name/ {
    atname = $NF
}

state == 1 && $2 ~ /DW_AT_comp_dir/ {
    atdir = $NF
    # atname is absolute
    if (atname ~ /^\//) {
        print atname
        state = 0
    } else if (atdir != "" && atname != "") {
        print atdir "/" atname
        state = 0
    }
}

state == 0 && $0 ~ /DW_TAG_compile_unit/ {
    state = 1
    atdir = ""
    atname = ""
}
'