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coff.ads
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coff.ads
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------------------------------------------------------------------------------
-- --
-- GNATcoverage --
-- --
-- Copyright (C) 2015-2024, AdaCore --
-- --
-- GNATcoverage is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This software is distributed in the hope that it will be useful --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY 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 distributed with this software; see file --
-- COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy --
-- of the license. --
------------------------------------------------------------------------------
with Interfaces; use Interfaces;
with System; use System;
package Coff is
type Filehdr is record
F_Machine : Unsigned_16;
F_Nscns : Unsigned_16;
F_Timdat : Unsigned_32;
F_Symptr : Unsigned_32;
F_Nsyms : Unsigned_32;
F_Opthdr : Unsigned_16;
F_Flags : Unsigned_16;
end record;
Filehdr_Size : constant Natural := Filehdr'Size / Storage_Unit;
PE32_Magic : constant Unsigned_16 := 16#10b#;
PE32Plus_Magic : constant Unsigned_16 := 16#20b#;
I386magic : constant Unsigned_16 := 16#014c#;
AMD64magic : constant Unsigned_16 := 16#8664#;
F_Relflg : constant Unsigned_16 := 16#0001#;
F_Exec : constant Unsigned_16 := 16#0002#;
F_Lnno : constant Unsigned_16 := 16#0004#;
F_Lsyms : constant Unsigned_16 := 16#0008#;
-- Layout for the Optional Header (PE32 only). Note that we only map the
-- fields we are truly interested in.
Opt_Hdr_PE32_Size : constant Natural := 28 + 68;
-- Minimal size for PE32 optional headers, assuming there are at least
-- standard fields and Windows-specific fields.
type Opt_Hdr_PE32 is record
Magic : Unsigned_16;
Pad1 : String (2 .. 27);
Image_Base : Unsigned_32;
Pad2 : String (4 .. 67);
end record;
-- Layout for the Optional Header (PE32+ only). Note that we only map the
-- fields we are truly interested in.
Opt_Hdr_PE32_Plus_Size : constant Natural := 24 + 88;
-- Minimal size for PE32+ optional headers, assuming there are at least
-- standard fields and Windows-specific fields.
type Opt_Hdr_PE32_Plus is record
Magic : Unsigned_16;
Pad1 : String (2 .. 23);
Image_Base : Unsigned_64;
Pad2 : String (8 .. 87);
end record;
type Scnhdr is record
S_Name : String (1 .. 8);
S_Paddr : Unsigned_32;
S_Vaddr : Unsigned_32;
S_Size : Unsigned_32;
S_Scnptr : Unsigned_32;
S_Relptr : Unsigned_32;
S_Lnnoptr : Unsigned_32;
S_Nreloc : Unsigned_16;
S_Nlnno : Unsigned_16;
S_Flags : Unsigned_32;
end record;
Scnhdr_Size : constant Natural := Scnhdr'Size / Storage_Unit;
STYP_TEXT : constant Unsigned_32 := 16#0020#;
STYP_DATA : constant Unsigned_32 := 16#0040#;
STYP_BSS : constant Unsigned_32 := 16#0080#;
type Strent_Type is record
E_Zeroes : Unsigned_32;
E_Offset : Unsigned_32;
end record;
type Sym_Name (Inline : Boolean := True) is record
case Inline is
when True =>
E_Name : String (1 .. 8);
when False =>
E : Strent_Type;
end case;
end record;
pragma Unchecked_Union (Sym_Name);
for Sym_Name'Size use 64;
type Syment is record
E : Sym_Name;
E_Value : Unsigned_32;
E_Scnum : Unsigned_16;
E_Type : Unsigned_16;
E_Sclass : Unsigned_8;
E_Numaux : Unsigned_8;
end record;
for Syment'Alignment use 2;
Symesz : constant := 18;
for Syment'Size use Symesz * Storage_Unit;
N_UNDEF : constant Unsigned_16 := 16#00_00#;
N_ABS : constant Unsigned_16 := 16#Ff_Ff#;
N_DEBUG : constant Unsigned_16 := 16#Ff_Fe#;
C_NULL : constant Unsigned_8 := 0;
C_AUTO : constant Unsigned_8 := 1;
C_EXT : constant Unsigned_8 := 2;
C_STAT : constant Unsigned_8 := 3;
C_REG : constant Unsigned_8 := 4;
C_EXTDEF : constant Unsigned_8 := 5;
C_LABEL : constant Unsigned_8 := 6;
C_ULABEL : constant Unsigned_8 := 7;
C_MOS : constant Unsigned_8 := 8;
C_ARG : constant Unsigned_8 := 9;
C_STRTAG : constant Unsigned_8 := 10;
C_MOU : constant Unsigned_8 := 11;
C_UNTAG : constant Unsigned_8 := 12;
C_TPDEF : constant Unsigned_8 := 13;
C_USTATIC : constant Unsigned_8 := 14;
C_ENTAG : constant Unsigned_8 := 15;
C_MOE : constant Unsigned_8 := 16;
C_REGPARM : constant Unsigned_8 := 17;
C_FIELD : constant Unsigned_8 := 18;
C_AUTOARG : constant Unsigned_8 := 19;
C_LASTENT : constant Unsigned_8 := 20;
C_BLOCK : constant Unsigned_8 := 100;
C_FCN : constant Unsigned_8 := 101;
C_EOS : constant Unsigned_8 := 102;
C_FILE : constant Unsigned_8 := 103;
C_LINE : constant Unsigned_8 := 104;
C_ALIAS : constant Unsigned_8 := 105;
C_HIDDEN : constant Unsigned_8 := 106;
C_EFCN : constant Unsigned_8 := 255;
type Auxent_File (Inline : Boolean := True) is record
case Inline is
when True =>
X_Fname : String (1 .. 14);
when False =>
X_N : Strent_Type;
end case;
end record;
pragma Unchecked_Union (Auxent_File);
type Auxent_Scn is record
X_Scnlen : Unsigned_32;
X_Nreloc : Unsigned_16;
X_Nlinno : Unsigned_16;
end record;
type Reloc is record
R_Vaddr : Unsigned_32;
R_Symndx : Unsigned_32;
R_Type : Unsigned_16;
end record;
Relsz : constant Natural := Reloc'Size / Storage_Unit;
Reloc_Rel32 : constant Unsigned_16 := 20;
Reloc_Addr32 : constant Unsigned_16 := 6;
type PEHdr is record
E_MZHdr : Unsigned_16;
Pad1 : String (2 .. 16#3b#);
E_Lfanew : Unsigned_32;
end record;
PEHdrsz : constant Natural := PEHdr'Size / Storage_Unit;
MZhdr : constant Unsigned_16 := 16#5a_4d#;
Pe_Magic : constant Unsigned_32 := 16#00_00_45_50#;
end Coff;