file system 14 character limit.
* Makefile.am, configure.in: Corresponding changes.
* Makefile.in, configure: Rebuild.
coff-rs6000.c
coff-sh.c
coff-sparc.c
-coff-stubgo32.c
+coff-stgo32.c
coff-svm68k.c
coff-u68k.c
coff-we32k.c
+Sun Aug 10 14:45:56 1997 Ian Lance Taylor <ian@cygnus.com>
+
+ * coff-stgo32.c: Rename from coff-stubgo32.c to avoid old System V
+ file system 14 character limit.
+ * Makefile.am, configure.in: Corresponding changes.
+ * Makefile.in, configure: Rebuild.
+
+Fri Aug 8 18:34:36 1997 Ian Lance Taylor <ian@cygnus.com>
+
+ * Makefile.am: (ALL_MACHINES_CFILES): Add elf32-d10v.c.
+ Rebuild dependencies.
+ * Makefile.in: Rebuild.
+
Wed Aug 6 18:56:51 1997 Ian Lance Taylor <ian@cygnus.com>
* Makefile.am (docdir): Define.
--- /dev/null
+/* BFD back-end for Intel 386 COFF files (go32 variant with a stub).
+ Copyright 1997 Free Software Foundation, Inc.
+ Written by Robert Hoehne.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY 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
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* This file handles now also stubbed coff images. The stub is a small
+ DOS executable program before the coff image to load it in memory
+ and execute it. This is needed, because DOS cannot run coff files.
+
+ All the functions below are called by the corresponding functions
+ from coffswap.h.
+ The only thing what they do is to adjust the information stored in
+ the COFF file which are offset into the file.
+ This is needed, because DJGPP uses a very special way to load and run
+ the coff image. It loads the image in memory and assumes then, that the
+ image had no stub by using the filepointers as pointers in the coff
+ image and NOT in the file.
+
+ 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_NAME "coff-go32-exe"
+#define TARGET_UNDERSCORE '_'
+#define COFF_GO32_EXE
+
+#include "bfd.h"
+
+/* At first the prototypes */
+
+static void
+adjust_filehdr_in_post PARAMS ((bfd * abfd, PTR src, PTR dst));
+static void
+adjust_filehdr_out_pre PARAMS ((bfd * abfd, PTR in, PTR out));
+static void
+adjust_filehdr_out_post PARAMS ((bfd * abfd, PTR in, PTR out));
+
+static void
+adjust_scnhdr_in_post PARAMS ((bfd * abfd, PTR ext, PTR in));
+static void
+adjust_scnhdr_out_pre PARAMS ((bfd * abfd, PTR in, PTR out));
+static void
+adjust_scnhdr_out_post PARAMS ((bfd * abfd, PTR in, PTR out));
+
+static void
+adjust_aux_in_post PARAMS ((bfd * abfd, PTR ext1, int type, int class, int indx,
+ int numaux, PTR in1));
+static void
+adjust_aux_out_pre PARAMS ((bfd * abfd, PTR inp, int type, int class, int indx,
+ int numaux, PTR extp));
+static void
+adjust_aux_out_post PARAMS ((bfd * abfd, PTR inp, int type, int class, int indx,
+ int numaux, PTR extp));
+
+static void
+create_go32_stub PARAMS ((bfd * abfd));
+
+/*
+ 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.
+ */
+
+#define COFF_ADJUST_FILEHDR_IN_POST adjust_filehdr_in_post
+#define COFF_ADJUST_FILEHDR_OUT_PRE adjust_filehdr_out_pre
+#define COFF_ADJUST_FILEHDR_OUT_POST adjust_filehdr_out_post
+
+#define COFF_ADJUST_SCNHDR_IN_POST adjust_scnhdr_in_post
+#define COFF_ADJUST_SCNHDR_OUT_PRE adjust_scnhdr_out_pre
+#define COFF_ADJUST_SCNHDR_OUT_POST adjust_scnhdr_out_post
+
+#define COFF_ADJUST_AUX_IN_POST adjust_aux_in_post
+#define COFF_ADJUST_AUX_OUT_PRE adjust_aux_out_pre
+#define COFF_ADJUST_AUX_OUT_POST adjust_aux_out_post
+
+static boolean
+ go32_stubbed_coff_bfd_copy_private_bfd_data PARAMS ((bfd * ibfd, bfd * obfd));
+
+#define coff_bfd_copy_private_bfd_data go32_stubbed_coff_bfd_copy_private_bfd_data
+
+#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) (bfd_h_get_16(abfd, (bfd_byte *)(header+index*2)))
+
+/* This function checks if the bfd is a stubbed coff image */
+static const bfd_target *
+go32_stubbed_coff_object_p (abfd)
+ bfd *abfd;
+{
+ unsigned char header[10];
+ char magic[8];
+ unsigned long coff_start, exe_start;
+
+ if (bfd_read (&header, 1, sizeof (header), abfd) != sizeof (header))
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ if (_H (0) != 0x5a4d) /* it is not an exe file. maybe a coff-image */
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ coff_start = (long) _H (2) * 512L;
+ if (_H (1))
+ coff_start += (long) _H (1) - 512L;
+
+ /* We can handle only a stub with a length of STUBSIZE */
+ if (coff_start != STUBSIZE)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ exe_start = _H (4) * 16;
+ if (bfd_seek (abfd, exe_start, SEEK_SET) != 0)
+ return 0;
+ if (bfd_read (&magic, 1, 8, abfd) != 8)
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ if (memcmp (magic, "go32stub", 8) != 0)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ if (bfd_seek (abfd, 0, SEEK_SET) != 0)
+ return 0;
+
+ /* Call the normal COFF detection routine */
+ return coff_object_p (abfd);
+}
+
+/* These bytes are a 2048-byte DOS executable, which loads the COFF
+ image into memory and then runs it. It is called 'stub' */
+
+static unsigned char stub_bytes[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
+ ...out function, it is subtracted first and after calling the
+ standard swap function it is reset to the old value */
+
+/* This macro is used for adjusting the filepointers, which
+ is done only, if the pointer is nonzero */
+
+#define ADJUST_VAL(val,diff) \
+ if (val != 0) val += diff
+
+static void
+adjust_filehdr_in_post (abfd, src, dst)
+ bfd *abfd;
+ 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);
+
+ /* Save now the stub to be used later */
+ bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, 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);
+}
+
+static void
+adjust_filehdr_out_pre (abfd, in, out)
+ bfd *abfd;
+ PTR in;
+ PTR out;
+{
+ struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
+ FILHDR *filehdr_out = (FILHDR *) out;
+
+ /* Generate the stub */
+ 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);
+ else
+ /* use the default */
+ memcpy (filehdr_out->stub, stub_bytes, STUBSIZE);
+
+ ADJUST_VAL (filehdr_in->f_symptr, -STUBSIZE);
+}
+
+static void
+adjust_filehdr_out_post (abfd, in, out)
+ bfd *abfd;
+ PTR in;
+ PTR out;
+{
+ struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
+ /* undo the above change */
+ ADJUST_VAL (filehdr_in->f_symptr, STUBSIZE);
+}
+
+static void
+adjust_scnhdr_in_post (abfd, ext, in)
+ bfd *abfd;
+ PTR ext;
+ PTR in;
+{
+ 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);
+}
+
+static void
+adjust_scnhdr_out_pre (abfd, in, out)
+ bfd *abfd;
+ PTR in;
+ PTR out;
+{
+ 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);
+}
+
+static void
+adjust_scnhdr_out_post (abfd, in, out)
+ bfd *abfd;
+ PTR in;
+ PTR out;
+{
+ 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);
+}
+
+static void
+adjust_aux_in_post (abfd, ext1, type, class, indx, numaux, in1)
+ bfd *abfd;
+ PTR ext1;
+ int type;
+ int class;
+ int indx;
+ int numaux;
+ PTR in1;
+{
+ union internal_auxent *in = (union internal_auxent *) in1;
+
+ if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ {
+ ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, STUBSIZE);
+ }
+}
+
+static void
+adjust_aux_out_pre (abfd, inp, type, class, indx, numaux, extp)
+ bfd *abfd;
+ PTR inp;
+ int type;
+ int class;
+ int indx;
+ int numaux;
+ PTR extp;
+{
+ union internal_auxent *in = (union internal_auxent *) inp;
+
+ if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ {
+ ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, -STUBSIZE);
+ }
+}
+
+static void
+adjust_aux_out_post (abfd, inp, type, class, indx, numaux, extp)
+ bfd *abfd;
+ PTR inp;
+ int type;
+ int class;
+ int indx;
+ int numaux;
+ PTR extp;
+{
+ union internal_auxent *in = (union internal_auxent *) inp;
+
+ if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
+ {
+ ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, STUBSIZE);
+ }
+}
+
+/*
+ That's the function, which creates the stub. There are
+ different cases from where the stub is taken.
+ At first the environment variable $(GO32STUB) is checked and then
+ $(STUB) if it was not set.
+ If it exists and points to a valid stub the stub is taken from
+ that file. This file can be also a whole executable file, because
+ the stub is computed from the exe information at the start of that
+ file.
+
+ If there was any error, the standard stub (compiled in this file)
+ is taken.
+ */
+
+static void
+create_go32_stub (abfd)
+ bfd *abfd;
+{
+ /* Do it only once */
+ if (bfd_coff_go32stub (abfd) == NULL)
+ {
+ char *stub;
+ struct stat st;
+ int f;
+ unsigned char header[10];
+ char magic[8];
+ unsigned long coff_start, exe_start;
+
+ /* Check at first the environment variable $(GO32STUB) */
+ stub = getenv ("GO32STUB");
+ /* Now check the environment variable $(STUB) */
+ if (stub == NULL)
+ stub = getenv ("STUB");
+ if (stub == NULL)
+ goto stub_end;
+ if (stat (stub, &st) != 0)
+ goto stub_end;
+#ifdef O_BINARY
+ f = open (stub, O_RDONLY | O_BINARY);
+#else
+ f = open (stub, O_RDONLY);
+#endif
+ if (f < 0)
+ goto stub_end;
+ if (read (f, &header, sizeof (header)) < 0)
+ {
+ close (f);
+ goto stub_end;
+ }
+ if (_H (0) != 0x5a4d) /* it is not an exe file */
+ {
+ close (f);
+ goto stub_end;
+ }
+ /* Compute the size of the stub (it is every thing up
+ 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 */
+ if (coff_start != 2048)
+ {
+ close (f);
+ goto stub_end;
+ }
+ exe_start = _H (4) * 16;
+ if (lseek (f, exe_start, SEEK_SET) != exe_start)
+ {
+ close (f);
+ goto stub_end;
+ }
+ if (read (f, &magic, 8) != 8)
+ {
+ close (f);
+ goto stub_end;
+ }
+ if (memcmp (magic, "go32stub", 8) != 0)
+ {
+ close (f);
+ goto stub_end;
+ }
+ /* Now we found a correct stub (hopefully) */
+ bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, coff_start);
+ if (bfd_coff_go32stub (abfd) == NULL)
+ {
+ close (f);
+ return;
+ }
+ lseek (f, 0L, SEEK_SET);
+ if (read (f, bfd_coff_go32stub (abfd), coff_start) != coff_start)
+ {
+ bfd_release (abfd, bfd_coff_go32stub (abfd));
+ bfd_coff_go32stub (abfd) = NULL;
+ }
+ close (f);
+ }
+stub_end:
+ /* There was something wrong above, so use now the standard builtin
+ stub */
+ if (bfd_coff_go32stub (abfd) == NULL)
+ {
+ bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, STUBSIZE);
+ if (bfd_coff_go32stub (abfd) == NULL)
+ {
+ return;
+ }
+
+ memcpy (bfd_coff_go32stub (abfd), stub_bytes, STUBSIZE);
+ }
+}
+
+/* If ibfd was a stubbed coff image, copy the stub from that bfd
+ to the new obfd.
+ */
+
+static boolean
+go32_stubbed_coff_bfd_copy_private_bfd_data (ibfd, obfd)
+ bfd *ibfd;
+ bfd *obfd;
+{
+ /* check if both are the same targets */
+ 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)
+ return true;
+
+ /* Now copy the stub */
+ memcpy (bfd_coff_go32stub (obfd), bfd_coff_go32stub (ibfd), STUBSIZE);
+
+ return true;
+}
+++ /dev/null
-/* BFD back-end for Intel 386 COFF files (go32 variant with a stub).
- Copyright 1997 Free Software Foundation, Inc.
- Written by Robert Hoehne.
-
- This file is part of BFD, the Binary File Descriptor library.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY 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
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* This file handles now also stubbed coff images. The stub is a small
- DOS executable program before the coff image to load it in memory
- and execute it. This is needed, because DOS cannot run coff files.
-
- All the functions below are called by the corresponding functions
- from coffswap.h.
- The only thing what they do is to adjust the information stored in
- the COFF file which are offset into the file.
- This is needed, because DJGPP uses a very special way to load and run
- the coff image. It loads the image in memory and assumes then, that the
- image had no stub by using the filepointers as pointers in the coff
- image and NOT in the file.
-
- 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_NAME "coff-go32-exe"
-#define TARGET_UNDERSCORE '_'
-#define COFF_GO32_EXE
-
-#include "bfd.h"
-
-/* At first the prototypes */
-
-static void
-adjust_filehdr_in_post PARAMS ((bfd * abfd, PTR src, PTR dst));
-static void
-adjust_filehdr_out_pre PARAMS ((bfd * abfd, PTR in, PTR out));
-static void
-adjust_filehdr_out_post PARAMS ((bfd * abfd, PTR in, PTR out));
-
-static void
-adjust_scnhdr_in_post PARAMS ((bfd * abfd, PTR ext, PTR in));
-static void
-adjust_scnhdr_out_pre PARAMS ((bfd * abfd, PTR in, PTR out));
-static void
-adjust_scnhdr_out_post PARAMS ((bfd * abfd, PTR in, PTR out));
-
-static void
-adjust_aux_in_post PARAMS ((bfd * abfd, PTR ext1, int type, int class, int indx,
- int numaux, PTR in1));
-static void
-adjust_aux_out_pre PARAMS ((bfd * abfd, PTR inp, int type, int class, int indx,
- int numaux, PTR extp));
-static void
-adjust_aux_out_post PARAMS ((bfd * abfd, PTR inp, int type, int class, int indx,
- int numaux, PTR extp));
-
-static void
-create_go32_stub PARAMS ((bfd * abfd));
-
-/*
- 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.
- */
-
-#define COFF_ADJUST_FILEHDR_IN_POST adjust_filehdr_in_post
-#define COFF_ADJUST_FILEHDR_OUT_PRE adjust_filehdr_out_pre
-#define COFF_ADJUST_FILEHDR_OUT_POST adjust_filehdr_out_post
-
-#define COFF_ADJUST_SCNHDR_IN_POST adjust_scnhdr_in_post
-#define COFF_ADJUST_SCNHDR_OUT_PRE adjust_scnhdr_out_pre
-#define COFF_ADJUST_SCNHDR_OUT_POST adjust_scnhdr_out_post
-
-#define COFF_ADJUST_AUX_IN_POST adjust_aux_in_post
-#define COFF_ADJUST_AUX_OUT_PRE adjust_aux_out_pre
-#define COFF_ADJUST_AUX_OUT_POST adjust_aux_out_post
-
-static boolean
- go32_stubbed_coff_bfd_copy_private_bfd_data PARAMS ((bfd * ibfd, bfd * obfd));
-
-#define coff_bfd_copy_private_bfd_data go32_stubbed_coff_bfd_copy_private_bfd_data
-
-#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) (bfd_h_get_16(abfd, (bfd_byte *)(header+index*2)))
-
-/* This function checks if the bfd is a stubbed coff image */
-static const bfd_target *
-go32_stubbed_coff_object_p (abfd)
- bfd *abfd;
-{
- unsigned char header[10];
- char magic[8];
- unsigned long coff_start, exe_start;
-
- if (bfd_read (&header, 1, sizeof (header), abfd) != sizeof (header))
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- if (_H (0) != 0x5a4d) /* it is not an exe file. maybe a coff-image */
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- coff_start = (long) _H (2) * 512L;
- if (_H (1))
- coff_start += (long) _H (1) - 512L;
-
- /* We can handle only a stub with a length of STUBSIZE */
- if (coff_start != STUBSIZE)
- {
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- exe_start = _H (4) * 16;
- if (bfd_seek (abfd, exe_start, SEEK_SET) != 0)
- return 0;
- if (bfd_read (&magic, 1, 8, abfd) != 8)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- if (memcmp (magic, "go32stub", 8) != 0)
- {
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- if (bfd_seek (abfd, 0, SEEK_SET) != 0)
- return 0;
-
- /* Call the normal COFF detection routine */
- return coff_object_p (abfd);
-}
-
-/* These bytes are a 2048-byte DOS executable, which loads the COFF
- image into memory and then runs it. It is called 'stub' */
-
-static unsigned char stub_bytes[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
- ...out function, it is subtracted first and after calling the
- standard swap function it is reset to the old value */
-
-/* This macro is used for adjusting the filepointers, which
- is done only, if the pointer is nonzero */
-
-#define ADJUST_VAL(val,diff) \
- if (val != 0) val += diff
-
-static void
-adjust_filehdr_in_post (abfd, src, dst)
- bfd *abfd;
- 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);
-
- /* Save now the stub to be used later */
- bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, 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);
-}
-
-static void
-adjust_filehdr_out_pre (abfd, in, out)
- bfd *abfd;
- PTR in;
- PTR out;
-{
- struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
- FILHDR *filehdr_out = (FILHDR *) out;
-
- /* Generate the stub */
- 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);
- else
- /* use the default */
- memcpy (filehdr_out->stub, stub_bytes, STUBSIZE);
-
- ADJUST_VAL (filehdr_in->f_symptr, -STUBSIZE);
-}
-
-static void
-adjust_filehdr_out_post (abfd, in, out)
- bfd *abfd;
- PTR in;
- PTR out;
-{
- struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in;
- /* undo the above change */
- ADJUST_VAL (filehdr_in->f_symptr, STUBSIZE);
-}
-
-static void
-adjust_scnhdr_in_post (abfd, ext, in)
- bfd *abfd;
- PTR ext;
- PTR in;
-{
- 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);
-}
-
-static void
-adjust_scnhdr_out_pre (abfd, in, out)
- bfd *abfd;
- PTR in;
- PTR out;
-{
- 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);
-}
-
-static void
-adjust_scnhdr_out_post (abfd, in, out)
- bfd *abfd;
- PTR in;
- PTR out;
-{
- 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);
-}
-
-static void
-adjust_aux_in_post (abfd, ext1, type, class, indx, numaux, in1)
- bfd *abfd;
- PTR ext1;
- int type;
- int class;
- int indx;
- int numaux;
- PTR in1;
-{
- union internal_auxent *in = (union internal_auxent *) in1;
-
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
- {
- ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, STUBSIZE);
- }
-}
-
-static void
-adjust_aux_out_pre (abfd, inp, type, class, indx, numaux, extp)
- bfd *abfd;
- PTR inp;
- int type;
- int class;
- int indx;
- int numaux;
- PTR extp;
-{
- union internal_auxent *in = (union internal_auxent *) inp;
-
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
- {
- ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, -STUBSIZE);
- }
-}
-
-static void
-adjust_aux_out_post (abfd, inp, type, class, indx, numaux, extp)
- bfd *abfd;
- PTR inp;
- int type;
- int class;
- int indx;
- int numaux;
- PTR extp;
-{
- union internal_auxent *in = (union internal_auxent *) inp;
-
- if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
- {
- ADJUST_VAL (in->x_sym.x_fcnary.x_fcn.x_lnnoptr, STUBSIZE);
- }
-}
-
-/*
- That's the function, which creates the stub. There are
- different cases from where the stub is taken.
- At first the environment variable $(GO32STUB) is checked and then
- $(STUB) if it was not set.
- If it exists and points to a valid stub the stub is taken from
- that file. This file can be also a whole executable file, because
- the stub is computed from the exe information at the start of that
- file.
-
- If there was any error, the standard stub (compiled in this file)
- is taken.
- */
-
-static void
-create_go32_stub (abfd)
- bfd *abfd;
-{
- /* Do it only once */
- if (bfd_coff_go32stub (abfd) == NULL)
- {
- char *stub;
- struct stat st;
- int f;
- unsigned char header[10];
- char magic[8];
- unsigned long coff_start, exe_start;
-
- /* Check at first the environment variable $(GO32STUB) */
- stub = getenv ("GO32STUB");
- /* Now check the environment variable $(STUB) */
- if (stub == NULL)
- stub = getenv ("STUB");
- if (stub == NULL)
- goto stub_end;
- if (stat (stub, &st) != 0)
- goto stub_end;
-#ifdef O_BINARY
- f = open (stub, O_RDONLY | O_BINARY);
-#else
- f = open (stub, O_RDONLY);
-#endif
- if (f < 0)
- goto stub_end;
- if (read (f, &header, sizeof (header)) < 0)
- {
- close (f);
- goto stub_end;
- }
- if (_H (0) != 0x5a4d) /* it is not an exe file */
- {
- close (f);
- goto stub_end;
- }
- /* Compute the size of the stub (it is every thing up
- 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 */
- if (coff_start != 2048)
- {
- close (f);
- goto stub_end;
- }
- exe_start = _H (4) * 16;
- if (lseek (f, exe_start, SEEK_SET) != exe_start)
- {
- close (f);
- goto stub_end;
- }
- if (read (f, &magic, 8) != 8)
- {
- close (f);
- goto stub_end;
- }
- if (memcmp (magic, "go32stub", 8) != 0)
- {
- close (f);
- goto stub_end;
- }
- /* Now we found a correct stub (hopefully) */
- bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, coff_start);
- if (bfd_coff_go32stub (abfd) == NULL)
- {
- close (f);
- return;
- }
- lseek (f, 0L, SEEK_SET);
- if (read (f, bfd_coff_go32stub (abfd), coff_start) != coff_start)
- {
- bfd_release (abfd, bfd_coff_go32stub (abfd));
- bfd_coff_go32stub (abfd) = NULL;
- }
- close (f);
- }
-stub_end:
- /* There was something wrong above, so use now the standard builtin
- stub */
- if (bfd_coff_go32stub (abfd) == NULL)
- {
- bfd_coff_go32stub (abfd) = (PTR) bfd_alloc (abfd, STUBSIZE);
- if (bfd_coff_go32stub (abfd) == NULL)
- {
- return;
- }
-
- memcpy (bfd_coff_go32stub (abfd), stub_bytes, STUBSIZE);
- }
-}
-
-/* If ibfd was a stubbed coff image, copy the stub from that bfd
- to the new obfd.
- */
-
-static boolean
-go32_stubbed_coff_bfd_copy_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
-{
- /* check if both are the same targets */
- 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)
- return true;
-
- /* Now copy the stub */
- memcpy (bfd_coff_go32stub (obfd), bfd_coff_go32stub (ibfd), STUBSIZE);
-
- return true;
-}
projects / binutils-gdb.git / commitdiff