Théophile Bastian
8fa2bc5952
Don't try to write into the ELF file directly, use objcopy. Updated README
58 lines
1.5 KiB
OCaml
58 lines
1.5 KiB
OCaml
(* copy here as quick hack / restructure the file directory *)
|
|
|
|
type pre_c_pre_dwarf_entry = {
|
|
location: int64;
|
|
cfa_offset: int64;
|
|
cfa_offset_reg: int
|
|
}
|
|
|
|
type pre_c_pre_dwarf_fde = {
|
|
num: int;
|
|
initial_location: int64;
|
|
end_location: int64;
|
|
name: string;
|
|
entries: pre_c_pre_dwarf_entry array
|
|
}
|
|
|
|
type pre_c_pre_dwarf = {
|
|
num_fde: int;
|
|
fdes: pre_c_pre_dwarf_fde array
|
|
}
|
|
|
|
let dump_pre_c_pre_dwarf_entry e =
|
|
Printf.printf " %8Lx %d+%Ld \n" e.location e.cfa_offset_reg e.cfa_offset
|
|
|
|
let dump_pre_c_pre_dwarf_fde f =
|
|
Printf.printf "%s %Lx %Lx\n" f.name f.initial_location f.end_location;
|
|
for i = 0 to Array.length f.entries - 1 do
|
|
dump_pre_c_pre_dwarf_entry f.entries.(i)
|
|
done
|
|
|
|
|
|
let dump_pre_c_pre_dwarf p =
|
|
for i = 0 to Array.length p.fdes - 1 do
|
|
dump_pre_c_pre_dwarf_fde p.fdes.(i)
|
|
done
|
|
|
|
|
|
external write_dwarf : string -> string -> pre_c_pre_dwarf -> int
|
|
= "caml_write_dwarf"
|
|
|
|
(** ========== USAGE ========== **)
|
|
let use_string =
|
|
Sys.argv.(0) ^ " <marshalled_data> <executable> [<eh_file>]\n" ^
|
|
"<eh_file> defaults to `<executable>.eh_frame`\n" ;;
|
|
|
|
let _ =
|
|
if Array.length Sys.argv <= 2 then (
|
|
Format.eprintf "Error: missing argument(s). Usage:\n%s" use_string ;
|
|
exit 1
|
|
) ;
|
|
let eh_path = (if Array.length Sys.argv <= 3
|
|
then (Sys.argv.(2) ^ ".eh_frame")
|
|
else Sys.argv.(3)) in
|
|
let fd = open_in_bin Sys.argv.(1) in
|
|
let pre_c_dwarf = ((Marshal.from_channel fd): pre_c_pre_dwarf) in
|
|
dump_pre_c_pre_dwarf pre_c_dwarf;
|
|
write_dwarf Sys.argv.(2) eh_path pre_c_dwarf
|
|
|