Location/expression access

Example using DWARF2-5 loclists and loc-expressions.

Example using DWARF2-5 loclists and loc-expressions.

Valid for DWARF2 and later DWARF.

This example simply assumes the attribute has a form which relates to location lists or location expressions. Use dwarf_get_form_class() to determine if this attribute fits. Use dwarf_get_version_of_die() to help get the data you need.

See also

dwarf_get_form_class

dwarf_get_version_of_die

Reading a location expression

*/
int example_loclistcv5(Dwarf_Attribute someattr,
    Dwarf_Error *error)
{
    Dwarf_Unsigned lcount = 0;
    Dwarf_Loc_Head_c loclist_head = 0;
    int lres = 0;
 
    lres = dwarf_get_loclist_c(someattr,&loclist_head,
        &lcount,error);
    if (lres == DW_DLV_OK) {
        Dwarf_Unsigned i = 0;
 
        /*  Before any return remember to call
            dwarf_loc_head_c_dealloc(loclist_head);