/* BFD back-end for Intel 386 COFF files (DJGPP variant with a stub).
- Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2007, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1997-2019 Free Software Foundation, Inc.
Written by Robert Hoehne.
This file is part of BFD, the Binary File Descriptor library.
To be compatible with any existing executables I have fixed this
here and NOT in the DJGPP startup code. */
-#define TARGET_SYM go32stubbedcoff_vec
+#define TARGET_SYM i386_coff_go32stubbed_vec
#define TARGET_NAME "coff-go32-exe"
#define TARGET_UNDERSCORE '_'
#define COFF_GO32_EXE
{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
+#include "sysdep.h"
#include "bfd.h"
-/* At first the prototypes. */
+/* All that ..._PRE and ...POST functions are called from the corresponding
+ coff_swap... functions. The ...PRE functions are called at the beginning
+ of the function and the ...POST functions at the end of the swap routines. */
static void
-adjust_filehdr_in_post PARAMS ((bfd *, PTR, PTR));
+adjust_filehdr_in_post (bfd *, void *, void *);
static void
-adjust_filehdr_out_pre PARAMS ((bfd *, PTR, PTR));
+adjust_filehdr_out_pre (bfd *, void *, void *);
static void
-adjust_filehdr_out_post PARAMS ((bfd *, PTR, PTR));
+adjust_filehdr_out_post (bfd *, void *, void *);
static void
-adjust_scnhdr_in_post PARAMS ((bfd *, PTR, PTR));
+adjust_scnhdr_in_post (bfd *, void *, void *);
static void
-adjust_scnhdr_out_pre PARAMS ((bfd *, PTR, PTR));
+adjust_scnhdr_out_pre (bfd *, void *, void *);
static void
-adjust_scnhdr_out_post PARAMS ((bfd *, PTR, PTR));
+adjust_scnhdr_out_post (bfd *, void *, void *);
static void
-adjust_aux_in_post PARAMS ((bfd *, PTR, int, int, int, int, PTR));
+adjust_aux_in_post (bfd *, void *, int, int, int, int, void *);
static void
-adjust_aux_out_pre PARAMS ((bfd *, PTR, int, int, int, int, PTR));
+adjust_aux_out_pre (bfd *, void *, int, int, int, int, void *);
static void
-adjust_aux_out_post PARAMS ((bfd *, PTR, int, int, int, int, PTR));
+adjust_aux_out_post (bfd *, void *, int, int, int, int, void *);
static void
-create_go32_stub PARAMS ((bfd *));
-
-/* All that ..._PRE and ...POST functions are called from the corresponding
- coff_swap... functions. The ...PRE functions are called at the beginning
- of the function and the ...POST functions at the end of the swap routines. */
+create_go32_stub (bfd *);
#define COFF_ADJUST_FILEHDR_IN_POST adjust_filehdr_in_post
#define COFF_ADJUST_FILEHDR_OUT_PRE adjust_filehdr_out_pre
#define COFF_ADJUST_AUX_OUT_PRE adjust_aux_out_pre
#define COFF_ADJUST_AUX_OUT_POST adjust_aux_out_post
+static const bfd_target *go32_check_format (bfd *);
+
+#define COFF_CHECK_FORMAT go32_check_format
+
static bfd_boolean
- go32_stubbed_coff_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *));
+ go32_stubbed_coff_bfd_copy_private_bfd_data (bfd *, bfd *);
#define coff_bfd_copy_private_bfd_data go32_stubbed_coff_bfd_copy_private_bfd_data
#include "coff-i386.c"
-/* This macro is used, because I cannot assume the endianess of the
+/* This macro is used, because I cannot assume the endianness of the
host system. */
-#define _H(index) (H_GET_16 (abfd, (header+index*2)))
+#define _H(index) (H_GET_16 (abfd, (header + index * 2)))
/* These bytes are a 2048-byte DOS executable, which loads the COFF
image into memory and then runs it. It is called 'stub'. */
if (val != 0) val += diff
static void
-adjust_filehdr_in_post (abfd, src, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR src;
- PTR dst;
+adjust_filehdr_in_post (bfd * abfd ATTRIBUTE_UNUSED,
+ void * src,
+ void * dst)
{
FILHDR *filehdr_src = (FILHDR *) src;
struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
}
static void
-adjust_filehdr_out_pre (abfd, in, out)
- bfd *abfd;
- PTR in;
- PTR out;
+adjust_filehdr_out_pre (bfd * abfd, void * in, void * out)
{
struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
FILHDR *filehdr_out = (FILHDR *) out;
}
static void
-adjust_filehdr_out_post (abfd, in, out)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR in;
- PTR out ATTRIBUTE_UNUSED;
+adjust_filehdr_out_post (bfd * abfd ATTRIBUTE_UNUSED,
+ void * in,
+ void * out ATTRIBUTE_UNUSED)
{
struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
/* Undo the above change. */
}
static void
-adjust_scnhdr_in_post (abfd, ext, in)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR ext ATTRIBUTE_UNUSED;
- PTR in;
+adjust_scnhdr_in_post (bfd * abfd ATTRIBUTE_UNUSED,
+ void * ext ATTRIBUTE_UNUSED,
+ void * in)
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
}
static void
-adjust_scnhdr_out_pre (abfd, in, out)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR in;
- PTR out ATTRIBUTE_UNUSED;
+adjust_scnhdr_out_pre (bfd * abfd ATTRIBUTE_UNUSED,
+ void * in,
+ void * out ATTRIBUTE_UNUSED)
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
}
static void
-adjust_scnhdr_out_post (abfd, in, out)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR in;
- PTR out ATTRIBUTE_UNUSED;
+adjust_scnhdr_out_post (bfd * abfd ATTRIBUTE_UNUSED,
+ void * in,
+ void * out ATTRIBUTE_UNUSED)
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
}
static void
-adjust_aux_in_post (abfd, ext1, type, class, indx, numaux, in1)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR ext1 ATTRIBUTE_UNUSED;
- int type;
- int class;
- int indx ATTRIBUTE_UNUSED;
- int numaux ATTRIBUTE_UNUSED;
- PTR in1;
+adjust_aux_in_post (bfd * abfd ATTRIBUTE_UNUSED,
+ void * ext1 ATTRIBUTE_UNUSED,
+ int type,
+ int in_class,
+ int indx ATTRIBUTE_UNUSED,
+ int numaux ATTRIBUTE_UNUSED,
+ void * in1)
{
union internal_auxent *in = (union internal_auxent *) in1;
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
+ || ISTAG (in_class))
{
ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, GO32_STUBSIZE);
}
}
static void
-adjust_aux_out_pre (abfd, inp, type, class, indx, numaux, extp)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR inp;
- int type;
- int class;
- int indx ATTRIBUTE_UNUSED;
- int numaux ATTRIBUTE_UNUSED;
- PTR extp ATTRIBUTE_UNUSED;
+adjust_aux_out_pre (bfd *abfd ATTRIBUTE_UNUSED,
+ void * inp,
+ int type,
+ int in_class,
+ int indx ATTRIBUTE_UNUSED,
+ int numaux ATTRIBUTE_UNUSED,
+ void * extp ATTRIBUTE_UNUSED)
{
union internal_auxent *in = (union internal_auxent *) inp;
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
+ || ISTAG (in_class))
{
ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, -GO32_STUBSIZE);
}
}
static void
-adjust_aux_out_post (abfd, inp, type, class, indx, numaux, extp)
- bfd *abfd ATTRIBUTE_UNUSED;
- PTR inp;
- int type;
- int class;
- int indx ATTRIBUTE_UNUSED;
- int numaux ATTRIBUTE_UNUSED;
- PTR extp ATTRIBUTE_UNUSED;
+adjust_aux_out_post (bfd *abfd ATTRIBUTE_UNUSED,
+ void * inp,
+ int type,
+ int in_class,
+ int indx ATTRIBUTE_UNUSED,
+ int numaux ATTRIBUTE_UNUSED,
+ void * extp ATTRIBUTE_UNUSED)
{
union internal_auxent *in = (union internal_auxent *) inp;
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
+ || ISTAG (in_class))
{
ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, GO32_STUBSIZE);
}
is taken. */
static void
-create_go32_stub (abfd)
- bfd *abfd;
+create_go32_stub (bfd *abfd)
{
/* Do it only once. */
if (coff_data (abfd)->go32stub == NULL)
goto stub_end;
}
/* Compute the size of the stub (it is every thing up
- to the beginning of the coff image). */
+ to the beginning of the coff image). */
coff_start = (long) _H (2) * 512L;
if (_H (1))
coff_start += (long) _H (1) - 512L;
/* Currently there is only a fixed stub size of 2048 bytes
- supported. */
+ supported. */
if (coff_start != 2048)
{
close (f);
to the new obfd. */
static bfd_boolean
-go32_stubbed_coff_bfd_copy_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+go32_stubbed_coff_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
{
/* Check if both are the same targets. */
if (ibfd->xvec != obfd->xvec)
return TRUE;
}
+
+/* coff_object_p only checks 2 bytes F_MAGIC at GO32_STUBSIZE inside the file
+ which is too fragile. */
+
+static const bfd_target *
+go32_check_format (bfd *abfd)
+{
+ char mz[2];
+
+ if (bfd_bread (mz, 2, abfd) != 2 || mz[0] != 'M' || mz[1] != 'Z')
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ if (bfd_seek (abfd, 0, SEEK_SET) != 0)
+ return NULL;
+
+ return coff_object_p (abfd);
+}
projects / deliverable / binutils-gdb.git / blobdiff