Initial revision

1 files changed, 527 insertions, 0 deletions

diff --git a/bfd/aout-adobe.c b/bfd/aout-adobe.c
new file mode 100644
index 00000000000..2c11ffe9ff2
--- /dev/null
+++ b/bfd/aout-adobe.c
@@ -0,0 +1,527 @@
+/* BFD back-end for a.out.adobe binaries.
+   Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+   Written by Cygnus Support.  Based on bout.c.
+
+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.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+#include "aout/adobe.h"
+
+#include "aout/stab_gnu.h"
+#include "libaout.h"		/* BFD a.out internal data structures */
+
+extern const bfd_target a_out_adobe_vec;		/* Forward decl */
+
+static const bfd_target *aout_adobe_callback PARAMS ((bfd *));
+
+extern boolean aout_32_slurp_symbol_table PARAMS ((bfd *abfd));
+extern boolean aout_32_write_syms PARAMS ((bfd *));
+static void aout_adobe_write_section PARAMS ((bfd *abfd, sec_ptr sect));
+
+/* Swaps the information in an executable header taken from a raw byte
+   stream memory image, into the internal exec_header structure.  */
+
+void aout_adobe_swap_exec_header_in
+  PARAMS ((bfd *abfd, struct external_exec *raw_bytes,
+	   struct internal_exec *execp));
+	 
+void
+aout_adobe_swap_exec_header_in (abfd, raw_bytes, execp)
+     bfd *abfd;
+     struct external_exec *raw_bytes;
+     struct internal_exec *execp;
+{
+  struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+  /* Now fill in fields in the execp, from the bytes in the raw data.  */
+  execp->a_info   = bfd_h_get_32 (abfd, bytes->e_info);
+  execp->a_text   = GET_WORD (abfd, bytes->e_text);
+  execp->a_data   = GET_WORD (abfd, bytes->e_data);
+  execp->a_bss    = GET_WORD (abfd, bytes->e_bss);
+  execp->a_syms   = GET_WORD (abfd, bytes->e_syms);
+  execp->a_entry  = GET_WORD (abfd, bytes->e_entry);
+  execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
+  execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
+}
+
+/* Swaps the information in an internal exec header structure into the
+   supplied buffer ready for writing to disk.  */
+
+PROTO(void, aout_adobe_swap_exec_header_out,
+	  (bfd *abfd,
+	   struct internal_exec *execp,
+	   struct external_exec *raw_bytes));
+void
+aout_adobe_swap_exec_header_out (abfd, execp, raw_bytes)
+     bfd *abfd;
+     struct internal_exec *execp;
+     struct external_exec *raw_bytes;
+{
+  struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+  /* Now fill in fields in the raw data, from the fields in the exec struct. */
+  bfd_h_put_32 (abfd, execp->a_info  , bytes->e_info);
+  PUT_WORD (abfd, execp->a_text  , bytes->e_text);
+  PUT_WORD (abfd, execp->a_data  , bytes->e_data);
+  PUT_WORD (abfd, execp->a_bss   , bytes->e_bss);
+  PUT_WORD (abfd, execp->a_syms  , bytes->e_syms);
+  PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
+  PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
+  PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
+}
+
+
+static const bfd_target *
+aout_adobe_object_p (abfd)
+     bfd *abfd;
+{
+  struct internal_exec anexec;
+  struct external_exec exec_bytes;
+  char *targ;
+
+  if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
+      != EXEC_BYTES_SIZE) {
+    if (bfd_get_error () != bfd_error_system_call)
+      bfd_set_error (bfd_error_wrong_format);
+    return 0;
+  }
+
+  anexec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
+
+  /* Normally we just compare for the magic number.
+     However, a bunch of Adobe tools aren't fixed up yet; they generate
+     files using ZMAGIC(!).
+     If the environment variable GNUTARGET is set to "a.out.adobe", we will
+     take just about any a.out file as an Adobe a.out file.  FIXME!  */
+
+  if (N_BADMAG (anexec)) {
+    targ = getenv ("GNUTARGET");
+    if (targ && !strcmp (targ, a_out_adobe_vec.name))
+      ;		/* Just continue anyway, if specifically set to this format */
+    else
+      {
+	bfd_set_error (bfd_error_wrong_format);
+	return 0;
+      }
+  }
+
+  aout_adobe_swap_exec_header_in (abfd, &exec_bytes, &anexec);
+  return aout_32_some_aout_object_p (abfd, &anexec, aout_adobe_callback);
+}
+
+
+/* Finish up the opening of a b.out file for reading.  Fill in all the
+   fields that are not handled by common code.  */
+
+static const bfd_target *
+aout_adobe_callback (abfd)
+     bfd *abfd;
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+  asection *sect;
+  struct external_segdesc ext[1];
+  char *section_name;
+  char try_again[30];	/* name and number */
+  char *newname;
+  int trynum;
+  flagword flags;
+
+  /* Architecture and machine type -- unknown in this format.  */
+  bfd_set_arch_mach(abfd, bfd_arch_unknown, 0);
+
+  /* The positions of the string table and symbol table.  */
+  obj_str_filepos (abfd) = N_STROFF (*execp);
+  obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+
+  /* Suck up the section information from the file, one section at a time.  */
+
+  for (;;) {
+    if (bfd_read ((PTR) ext, 1, sizeof (*ext), abfd) != sizeof (*ext)) {
+      if (bfd_get_error () != bfd_error_system_call)
+	bfd_set_error (bfd_error_wrong_format);
+      return 0;
+    }
+    switch (ext->e_type[0]) {
+    case N_TEXT:
+      section_name = ".text";
+      flags = SEC_CODE | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
+      break;
+
+    case N_DATA:
+      section_name = ".data";
+      flags = SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
+      break;
+
+    case N_BSS:
+      section_name = ".bss";
+      flags = SEC_DATA | SEC_HAS_CONTENTS;
+      break;
+
+    case 0:
+      goto no_more_sections;
+
+    default:
+      (*_bfd_error_handler)
+	(_("%s: Unknown section type in a.out.adobe file: %x\n"), 
+	 bfd_get_filename (abfd), ext->e_type[0]);
+      goto no_more_sections;
+    }
+
+    /* First one is called ".text" or whatever; subsequent ones are
+       ".text1", ".text2", ... */
+
+    bfd_set_error (bfd_error_no_error);
+    sect = bfd_make_section (abfd, section_name);
+    trynum = 0;
+    while (!sect) {
+      if (bfd_get_error () != bfd_error_no_error)
+	return 0;	/* Some other error -- slide into the sunset */
+      sprintf (try_again, "%s%d", section_name, ++trynum);
+      sect = bfd_make_section (abfd, try_again);
+    }
+
+    /* Fix the name, if it is a sprintf'd name.  */
+    if (sect->name == try_again) {
+      newname = (char *) bfd_zalloc(abfd, strlen (sect->name));
+      if (newname == NULL)
+	return 0;
+      strcpy (newname, sect->name);
+      sect->name = newname;
+    }
+
+    /* Now set the section's attributes.  */
+    bfd_set_section_flags (abfd, sect, flags);
+    sect->_raw_size = ((ext->e_size[0] << 8)	/* Assumed big-endian */
+		      | ext->e_size[1] << 8)
+		      | ext->e_size[2];
+    sect->_cooked_size = sect->_raw_size;
+    sect->vma = bfd_h_get_32 (abfd, ext->e_virtbase);
+    sect->filepos = bfd_h_get_32 (abfd, ext->e_filebase);
+    /* FIXME XXX alignment? */
+
+    /* Set relocation information for first section of each type.  */
+    if (trynum == 0) switch (ext->e_type[0]) {
+    case N_TEXT:
+      sect->rel_filepos = N_TRELOFF (*execp);
+      sect->reloc_count = execp->a_trsize;
+      break;
+
+    case N_DATA:
+      sect->rel_filepos = N_DRELOFF (*execp);
+      sect->reloc_count = execp->a_drsize;
+      break;
+    }
+  }
+no_more_sections:  
+
+  adata(abfd).reloc_entry_size = sizeof (struct reloc_std_external);
+  adata(abfd).symbol_entry_size = sizeof (struct external_nlist);
+  adata(abfd).page_size = 1; /* Not applicable. */
+  adata(abfd).segment_size = 1; /* Not applicable. */
+  adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+
+  return abfd->xvec;
+}
+
+struct bout_data_struct {
+    struct aoutdata a;
+    struct internal_exec e;
+};
+
+static boolean
+aout_adobe_mkobject (abfd)
+     bfd *abfd;
+{
+  struct bout_data_struct *rawptr;
+
+  rawptr = (struct bout_data_struct *) bfd_zalloc (abfd, sizeof (struct bout_data_struct));
+  if (rawptr == NULL)
+      return false;
+
+  abfd->tdata.bout_data = rawptr;
+  exec_hdr (abfd) = &rawptr->e;
+
+  adata(abfd).reloc_entry_size = sizeof (struct reloc_std_external);
+  adata(abfd).symbol_entry_size = sizeof (struct external_nlist);
+  adata(abfd).page_size = 1; /* Not applicable. */
+  adata(abfd).segment_size = 1; /* Not applicable. */
+  adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+
+  return true;
+}
+
+
+static boolean
+aout_adobe_write_object_contents (abfd)
+     bfd *abfd;
+{
+  struct external_exec swapped_hdr;
+  static struct external_segdesc sentinel[1];	/* Initialized to zero */
+  asection *sect;
+
+  exec_hdr (abfd)->a_info = ZMAGIC;
+
+  /* Calculate text size as total of text sections, etc. */
+
+  exec_hdr (abfd)->a_text = 0;
+  exec_hdr (abfd)->a_data = 0;
+  exec_hdr (abfd)->a_bss  = 0;
+  exec_hdr (abfd)->a_trsize = 0;
+  exec_hdr (abfd)->a_drsize = 0;
+
+  for (sect = abfd->sections; sect; sect = sect->next) {
+    if (sect->flags & SEC_CODE)	{
+      exec_hdr (abfd)->a_text += sect->_raw_size;
+      exec_hdr (abfd)->a_trsize += sect->reloc_count *
+                                   sizeof (struct reloc_std_external);
+    } else if (sect->flags & SEC_DATA)	{
+      exec_hdr (abfd)->a_data += sect->_raw_size;
+      exec_hdr (abfd)->a_drsize += sect->reloc_count *
+                                   sizeof (struct reloc_std_external);
+    } else if (sect->flags & SEC_ALLOC && !(sect->flags & SEC_LOAD)) {
+      exec_hdr (abfd)->a_bss  += sect->_raw_size;
+    }
+  }
+
+  exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd)
+    				* sizeof (struct external_nlist);
+  exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
+
+  aout_adobe_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);
+
+  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
+      || (bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd)
+	  != EXEC_BYTES_SIZE))
+    return false;
+
+  /* Now write out the section information.  Text first, data next, rest
+     afterward.  */
+
+  for (sect = abfd->sections; sect; sect = sect->next) {
+    if (sect->flags & SEC_CODE)	{
+      aout_adobe_write_section (abfd, sect);
+    }
+  }
+  for (sect = abfd->sections; sect; sect = sect->next) {
+    if (sect->flags & SEC_DATA)	{
+      aout_adobe_write_section (abfd, sect);
+    }
+  }
+  for (sect = abfd->sections; sect; sect = sect->next) {
+    if (!(sect->flags & (SEC_CODE|SEC_DATA))) {
+      aout_adobe_write_section (abfd, sect);
+    }
+  }
+
+  /* Write final `sentinel` section header (with type of 0).  */
+  if (bfd_write ((PTR) sentinel, 1, sizeof (*sentinel), abfd)
+      != sizeof (*sentinel))
+    return false;
+
+  /* Now write out reloc info, followed by syms and strings */
+  if (bfd_get_symcount (abfd) != 0) 
+    {
+      if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET)
+	  != 0)
+	return false;
+
+      if (! aout_32_write_syms (abfd))
+	return false;
+
+      if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*exec_hdr(abfd))), SEEK_SET)
+	  != 0)
+	return false;
+
+      for (sect = abfd->sections; sect; sect = sect->next) {
+        if (sect->flags & SEC_CODE)	{
+          if (!aout_32_squirt_out_relocs (abfd, sect))
+            return false;
+        }
+      }
+
+      if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*exec_hdr(abfd))), SEEK_SET)
+	  != 0)
+	return false;
+
+      for (sect = abfd->sections; sect; sect = sect->next) {
+        if (sect->flags & SEC_DATA)	{
+          if (!aout_32_squirt_out_relocs (abfd, sect))
+            return false;
+        }
+      }
+    }
+  return true;
+}
+
+static void
+aout_adobe_write_section (abfd, sect)
+     bfd *abfd;
+     sec_ptr sect;
+{
+  /* FIXME XXX */
+}
+
+static boolean
+aout_adobe_set_section_contents (abfd, section, location, offset, count)
+     bfd *abfd;
+     asection *section;
+     PTR location;
+     file_ptr offset;
+     bfd_size_type count;
+{
+  file_ptr section_start;
+  sec_ptr sect;
+
+  if (abfd->output_has_begun == false) { /* set by bfd.c handler */
+
+    /* Assign file offsets to sections.  Text sections are first, and
+       are contiguous.  Then data sections.  Everything else at the end.  */
+
+    section_start = N_TXTOFF (ignore<-->me);
+
+    for (sect = abfd->sections; sect; sect = sect->next) {
+      if (sect->flags & SEC_CODE)	{
+        sect->filepos = section_start;
+	/* FIXME:  Round to alignment */
+	section_start += sect->_raw_size;
+      }
+    }
+
+    for (sect = abfd->sections; sect; sect = sect->next) {
+      if (sect->flags & SEC_DATA)	{
+        sect->filepos = section_start;
+	/* FIXME:  Round to alignment */
+	section_start += sect->_raw_size;
+      }
+    }
+
+    for (sect = abfd->sections; sect; sect = sect->next) {
+      if (sect->flags & SEC_HAS_CONTENTS &&
+	  !(sect->flags & (SEC_CODE|SEC_DATA)))	{
+        sect->filepos = section_start;
+	/* FIXME:  Round to alignment */
+	section_start += sect->_raw_size;
+      }
+    }
+  }
+
+  /* regardless, once we know what we're doing, we might as well get going */
+  if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
+    return false;
+
+  if (count != 0) {
+    return (bfd_write ((PTR)location, 1, count, abfd) == count) ?true:false;
+  }
+  return true;
+}
+
+static boolean
+aout_adobe_set_arch_mach (abfd, arch, machine)
+     bfd *abfd;
+     enum bfd_architecture arch;
+     unsigned long machine;
+{
+  if (! bfd_default_set_arch_mach (abfd, arch, machine))
+    return false;
+
+  if (arch == bfd_arch_unknown
+      || arch == bfd_arch_m68k)
+    return true;
+
+  return false;
+}
+
+static int 
+aout_adobe_sizeof_headers (ignore_abfd, ignore)
+     bfd *ignore_abfd;
+     boolean ignore;
+{
+  return sizeof(struct internal_exec);
+}
+
+
+
+
+/* Build the transfer vector for Adobe A.Out files.  */
+
+#define aout_32_close_and_cleanup aout_32_bfd_free_cached_info
+
+#define aout_32_bfd_make_debug_symbol \
+  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
+
+#define aout_32_bfd_reloc_type_lookup \
+  ((reloc_howto_type *(*) \
+    PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
+
+#define	aout_32_set_arch_mach		aout_adobe_set_arch_mach
+#define	aout_32_set_section_contents	aout_adobe_set_section_contents
+
+#define	aout_32_sizeof_headers		aout_adobe_sizeof_headers
+#define aout_32_bfd_get_relocated_section_contents \
+  bfd_generic_get_relocated_section_contents
+#define aout_32_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
+#define aout_32_bfd_relax_section       bfd_generic_relax_section
+#define aout_32_bfd_gc_sections         bfd_generic_gc_sections
+#define aout_32_bfd_link_hash_table_create \
+  _bfd_generic_link_hash_table_create
+#define aout_32_bfd_link_add_symbols	_bfd_generic_link_add_symbols
+#define aout_32_bfd_final_link		_bfd_generic_final_link
+#define aout_32_bfd_link_split_section	_bfd_generic_link_split_section
+
+const bfd_target a_out_adobe_vec =
+{
+  "a.out.adobe",		/* name */
+  bfd_target_aout_flavour,
+  BFD_ENDIAN_BIG,		/* data byte order is unknown (big assumed) */
+  BFD_ENDIAN_BIG,		/* hdr byte order is big */
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | WP_TEXT ),
+  /* section flags */
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_DATA | SEC_RELOC),
+  '_',				/*  symbol leading char */
+  ' ',				/* ar_pad_char */
+  16,				/* ar_max_namelen */
+
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
+ {_bfd_dummy_target, aout_adobe_object_p, /* bfd_check_format */
+   bfd_generic_archive_p, _bfd_dummy_target},
+ {bfd_false, aout_adobe_mkobject, /* bfd_set_format */
+   _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, aout_adobe_write_object_contents, /* bfd_write_contents */
+   _bfd_write_archive_contents, bfd_false},
+
+     BFD_JUMP_TABLE_GENERIC (aout_32),
+     BFD_JUMP_TABLE_COPY (_bfd_generic),
+     BFD_JUMP_TABLE_CORE (_bfd_nocore),
+     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
+     BFD_JUMP_TABLE_SYMBOLS (aout_32),
+     BFD_JUMP_TABLE_RELOCS (aout_32),
+     BFD_JUMP_TABLE_WRITE (aout_32),
+     BFD_JUMP_TABLE_LINK (aout_32),
+     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+  (PTR) 0
+};