/* BFD back-end for Intel 386 COFF files (DJGPP variant with a stub).
- Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2006, 2007
+ Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2007, 2009
Free Software Foundation, Inc.
Written by Robert Hoehne.
#include "coff-i386.c"
-/* I hold in the usrdata the stub. */
-#define bfd_coff_go32stub bfd_usrdata
-
/* This macro is used, because I cannot assume the endianess of the
host system. */
#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'. */
-static const unsigned char stub_bytes[STUBSIZE] =
+static const unsigned char stub_bytes[GO32_STUBSIZE] =
{
#include "go32stub.h"
};
/*
I have not commented each swap function below, because the
technique is in any function the same. For the ...in function,
- all the pointers are adjusted by adding STUBSIZE and for the
+ all the pointers are adjusted by adding GO32_STUBSIZE and for the
...out function, it is subtracted first and after calling the
standard swap function it is reset to the old value. */
static void
adjust_filehdr_in_post (abfd, src, dst)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
PTR src;
PTR dst;
{
FILHDR *filehdr_src = (FILHDR *) src;
struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
- ADJUST_VAL (filehdr_dst->f_symptr, STUBSIZE);
+ ADJUST_VAL (filehdr_dst->f_symptr, GO32_STUBSIZE);
- /* Save now the stub to be used later. */
- bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, (bfd_size_type) STUBSIZE);
-
- /* Since this function returns no status, I do not set here
- any bfd_error_...
- That means, before the use of bfd_coff_go32stub (), this value
- should be checked if it is != NULL. */
- if (bfd_coff_go32stub (abfd) == NULL)
- return;
- memcpy (bfd_coff_go32stub (abfd), filehdr_src->stub, STUBSIZE);
+ /* Save now the stub to be used later. Put the stub data to FILEHDR_DST
+ first as coff_data (abfd) still does not exist. It may not even be ever
+ created as we are just checking the file format of ABFD. */
+ memcpy (filehdr_dst->go32stub, filehdr_src->stub, GO32_STUBSIZE);
+ filehdr_dst->f_flags |= F_GO32STUB;
}
static void
create_go32_stub (abfd);
/* Copy the stub to the file header. */
- if (bfd_coff_go32stub (abfd) != NULL)
- memcpy (filehdr_out->stub, bfd_coff_go32stub (abfd), STUBSIZE);
+ if (coff_data (abfd)->go32stub != NULL)
+ memcpy (filehdr_out->stub, coff_data (abfd)->go32stub, GO32_STUBSIZE);
else
/* Use the default. */
- memcpy (filehdr_out->stub, stub_bytes, STUBSIZE);
+ memcpy (filehdr_out->stub, stub_bytes, GO32_STUBSIZE);
- ADJUST_VAL (filehdr_in->f_symptr, -STUBSIZE);
+ ADJUST_VAL (filehdr_in->f_symptr, -GO32_STUBSIZE);
}
static void
{
struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
/* Undo the above change. */
- ADJUST_VAL (filehdr_in->f_symptr, STUBSIZE);
+ ADJUST_VAL (filehdr_in->f_symptr, GO32_STUBSIZE);
}
static void
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
- ADJUST_VAL (scnhdr_int->s_scnptr, STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_relptr, STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_lnnoptr, STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_scnptr, GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_relptr, GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_lnnoptr, GO32_STUBSIZE);
}
static void
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
- ADJUST_VAL (scnhdr_int->s_scnptr, -STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_relptr, -STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_lnnoptr, -STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_scnptr, -GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_relptr, -GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_lnnoptr, -GO32_STUBSIZE);
}
static void
{
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
- ADJUST_VAL (scnhdr_int->s_scnptr, STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_relptr, STUBSIZE);
- ADJUST_VAL (scnhdr_int->s_lnnoptr, STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_scnptr, GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_relptr, GO32_STUBSIZE);
+ ADJUST_VAL (scnhdr_int->s_lnnoptr, GO32_STUBSIZE);
}
static void
-adjust_aux_in_post (abfd, ext1, type, class, indx, numaux, in1)
+adjust_aux_in_post (abfd, ext1, type, in_class, indx, numaux, in1)
bfd *abfd ATTRIBUTE_UNUSED;
PTR ext1 ATTRIBUTE_UNUSED;
int type;
- int class;
+ int in_class;
int indx ATTRIBUTE_UNUSED;
int numaux ATTRIBUTE_UNUSED;
PTR 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, STUBSIZE);
+ 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)
+adjust_aux_out_pre (abfd, inp, type, in_class, indx, numaux, extp)
bfd *abfd ATTRIBUTE_UNUSED;
PTR inp;
int type;
- int class;
+ int in_class;
int indx ATTRIBUTE_UNUSED;
int numaux ATTRIBUTE_UNUSED;
PTR 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, -STUBSIZE);
+ 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)
+adjust_aux_out_post (abfd, inp, type, in_class, indx, numaux, extp)
bfd *abfd ATTRIBUTE_UNUSED;
PTR inp;
int type;
- int class;
+ int in_class;
int indx ATTRIBUTE_UNUSED;
int numaux ATTRIBUTE_UNUSED;
PTR 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, STUBSIZE);
+ ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, GO32_STUBSIZE);
}
}
bfd *abfd;
{
/* Do it only once. */
- if (bfd_coff_go32stub (abfd) == NULL)
+ if (coff_data (abfd)->go32stub == NULL)
{
char *stub;
struct stat st;
goto stub_end;
}
/* Now we found a correct stub (hopefully). */
- bfd_coff_go32stub (abfd)
- = (PTR) bfd_alloc (abfd, (bfd_size_type) coff_start);
- if (bfd_coff_go32stub (abfd) == NULL)
+ coff_data (abfd)->go32stub = bfd_alloc (abfd, (bfd_size_type) coff_start);
+ if (coff_data (abfd)->go32stub == NULL)
{
close (f);
return;
}
lseek (f, 0L, SEEK_SET);
- if ((unsigned long) read (f, bfd_coff_go32stub (abfd), coff_start)
+ if ((unsigned long) read (f, coff_data (abfd)->go32stub, coff_start)
!= coff_start)
{
- bfd_release (abfd, bfd_coff_go32stub (abfd));
- bfd_coff_go32stub (abfd) = NULL;
+ bfd_release (abfd, coff_data (abfd)->go32stub);
+ coff_data (abfd)->go32stub = NULL;
}
close (f);
}
stub_end:
/* There was something wrong above, so use now the standard builtin
stub. */
- if (bfd_coff_go32stub (abfd) == NULL)
+ if (coff_data (abfd)->go32stub == NULL)
{
- bfd_coff_go32stub (abfd)
- = (PTR) bfd_alloc (abfd, (bfd_size_type) STUBSIZE);
- if (bfd_coff_go32stub (abfd) == NULL)
+ coff_data (abfd)->go32stub
+ = bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE);
+ if (coff_data (abfd)->go32stub == NULL)
return;
- memcpy (bfd_coff_go32stub (abfd), stub_bytes, STUBSIZE);
+ memcpy (coff_data (abfd)->go32stub, stub_bytes, GO32_STUBSIZE);
}
}
if (ibfd->xvec != obfd->xvec)
return TRUE;
- /* Check if both have a valid stub. */
- if (bfd_coff_go32stub (ibfd) == NULL
- || bfd_coff_go32stub (obfd) == NULL)
+ /* Check if we have a source stub. */
+ if (coff_data (ibfd)->go32stub == NULL)
return TRUE;
+ /* As adjust_filehdr_out_pre may get called only after this function,
+ optionally allocate the output stub. */
+ if (coff_data (obfd)->go32stub == NULL)
+ coff_data (obfd)->go32stub = bfd_alloc (obfd,
+ (bfd_size_type) GO32_STUBSIZE);
+
/* Now copy the stub. */
- memcpy (bfd_coff_go32stub (obfd), bfd_coff_go32stub (ibfd), STUBSIZE);
+ if (coff_data (obfd)->go32stub != NULL)
+ memcpy (coff_data (obfd)->go32stub, coff_data (ibfd)->go32stub,
+ GO32_STUBSIZE);
return TRUE;
}
projects / msp430-binutils.git / blobdiff