Example getting .debug_ranges data

Example accessing ranges data.

Example accessing ranges data.

If have_base_addr is false there is no die (as in reading the raw .debug_ranges section) or there is some serious data corruption somewhere.

*/
 
static
void functionusingrange(Dwarf_Signed i,Dwarf_Ranges *r,
    Dwarf_Bool *have_base_addr,
    Dwarf_Unsigned *baseaddr)
{
    Dwarf_Unsigned base = *baseaddr;
 
    printf("[%4ld] ",(signed long)i);
    switch(r->dwr_type) {
    case DW_RANGES_ENTRY:
        printf(
            "DW_RANGES_ENTRY: raw    addr1 " PRX
            " addr2 " PRX,
            r->dwr_addr1,r->dwr_addr2);
        if (r->dwr_addr1 == r->dwr_addr2) {
            printf(" (empty range)");
        }
        printf("\n");
        if (*have_base_addr) {
            printf("       "
            "DW_RANGES_ENTRY: cooked addr1 0x%08llx"
            " addr2  " PRX "\n" ,
            r->dwr_addr1+base,r->dwr_addr2+base);
        }
        break;
    case DW_RANGES_ADDRESS_SELECTION:
        printf(
            "Base Address   : " PRX "\n",
            r->dwr_addr2);
         have_base_addr = TRUE;
         baseaddr = r->dwr_addr2;
        break;
    case DW_RANGES_END:
        printf(
            "DW_RANGES_END  : 0,0\n");
         have_base_addr = FALSE;
         baseaddr = 0;
        break;
    default:
        printf(
            "ERROR          : incorrect dwr_type is 0x%lx\n",
            (unsigned long)r->dwr_type);
    }
}
 
/* On call the rangesoffset is a default zero.