+++ /dev/null
-/* BFD back-end for SCO System V 3.2 Unix core files.
- This was based on trad-core.c, which was written by John Gilmore of
- Cygnus Support.
- Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
- Written by Scott Michel, IntelliMED Corporation. scottm%intime@uunet
-
- NB: This does work with SCO System V 3.2 Unix and ODT. However, it
- may well work with other i386 based *nixen and *nixes.
-
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* To use this file on a particular host, configure the host with these
- parameters in the config/h-HOST file:
-
- HDEFINES=-DSCO_CORE=1
- HDEPFILES=sco-core.o
- */
-
-#include "bfd.h"
-#include "sysdep.h"
-#include "libbfd.h"
-#include "obstack.h"
-#include "coff/i386.h"
-#include "coff/internal.h"
-#include "libcoff.h"
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-
-#include <sys/file.h>
-#include <sys/user.h> /* After a.out.h */
-
-#include <errno.h>
-
-/* This struct is just for allocating two things with one zalloc, so
- they will be freed together, without violating alignment constraints. */
-
-struct trad_core_struct
- {
- asection *data_section;
- asection *stack_section;
- asection *reg_section;
-
- struct user u;
- } *rawptr;
-
-#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
-#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
-#define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section)
-#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section)
-
-/* Handle 4.2-style (and perhaps also sysV-style) core dump file. */
-
-/* ARGSUSED */
-bfd_target *
-sco_core_file_p (abfd)
- bfd *abfd;
-
-{
- int val;
- struct user u;
-
- bfd_seek(abfd, (file_ptr) 0, SEEK_SET);
- val = bfd_read ((void *)&u, 1, sizeof u, abfd);
- if (val != sizeof u)
- return 0; /* Too small to be a core file */
-
- /* Check that the size claimed is no greater than the file size. FIXME. */
-
- /* OK, we believe you. You're a core file (sure, sure). */
-
- /* Allocate both the upage and the struct core_data at once, so
- a single free() will free them both. */
- rawptr = (struct trad_core_struct *)
- bfd_zalloc (abfd, sizeof (struct trad_core_struct));
- if (rawptr == NULL) {
- bfd_error = no_memory;
- return 0;
- }
-
- abfd->tdata.trad_core_data = rawptr;
-
- rawptr->u = u; /* Copy the uarea into the tdata part of the bfd */
-
- /* Create the sections. This is raunchy, but bfd_close wants to free
- them separately. */
-
- core_stacksec(abfd) = (asection *) zalloc (sizeof (asection));
- if (core_stacksec (abfd) == NULL) {
- loser:
- bfd_error = no_memory;
- free ((void *)rawptr);
- return 0;
- }
- core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_datasec (abfd) == NULL) {
- loser1:
- free ((void *)core_stacksec (abfd));
- goto loser;
- }
- core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_regsec (abfd) == NULL) {
- free ((void *)core_datasec (abfd));
- goto loser1;
- }
-
- core_stacksec (abfd)->name = ".stack";
- core_datasec (abfd)->name = ".data";
- core_regsec (abfd)->name = ".reg";
-
- core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
- core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
- core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
-
- core_datasec (abfd)->_raw_size = NBPC * u.u_dsize;
- core_stacksec (abfd)->_raw_size = NBPC * u.u_ssize;
- core_regsec (abfd)->_raw_size = NBPC * USIZE; /* Larger than sizeof struct u */
-
- /* Under SCO, we get at the exact addresses of things: */
- core_datasec (abfd)->vma = u.u_exdata.ux_datorg;
- core_stacksec (abfd)->vma = u.u_sub;
-
- /* This is tricky. As the "register section", we give them the entire
- upage and stack. u.u_ar0 points to where "register 0" is stored.
- There are two tricks with this, though. One is that the rest of the
- registers might be at positive or negative (or both) displacements
- from *u_ar0. The other is that u_ar0 is sometimes an absolute address
- in kernel memory, and on other systems it is an offset from the beginning
- of the `struct user'.
-
- As a practical matter, we don't know where the registers actually are,
- so we have to pass the whole area to GDB. We encode the value of u_ar0
- by setting the .regs section up so that its virtual memory address
- 0 is at the place pointed to by u_ar0 (by setting the vma of the start
- of the section to -u_ar0). GDB uses this info to locate the regs,
- using minor trickery to get around the offset-or-absolute-addr problem. */
- core_regsec (abfd)->vma = 0 - (int) u.u_ar0;
-
- core_datasec (abfd)->filepos = NBPC * USIZE;
- core_stacksec (abfd)->filepos = (NBPC * USIZE) + NBPC * u.u_dsize;
- core_regsec (abfd)->filepos = 0; /* Register segment is the upage */
-
- /* Align to word at least */
- core_stacksec (abfd)->alignment_power = 2;
- core_datasec (abfd)->alignment_power = 2;
- core_regsec (abfd)->alignment_power = 2;
-
- abfd->sections = core_stacksec (abfd);
- core_stacksec (abfd)->next = core_datasec (abfd);
- core_datasec (abfd)->next = core_regsec (abfd);
- abfd->section_count = 3;
-
- return abfd->xvec;
-}
-
-char *
-sco_core_file_failing_command (abfd)
- bfd *abfd;
-{
- char *com = abfd->tdata.trad_core_data->u.u_comm;
- if (*com)
- return com;
- else
- return 0;
-}
-
-/* ARGSUSED */
-int
-sco_core_file_failing_signal (abfd)
- bfd *abfd;
-{
- int retval = -1;
-
- if (core_upage(abfd)->u_sysabort != 0)
- retval = core_upage(abfd)->u_sysabort;
-
- return retval;
-}
-
-/* ARGSUSED */
-boolean
-sco_core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd, *exec_bfd;
-{
- return true;
-}
-\f
-/* No archive file support via this BFD */
-#define sco_openr_next_archived_file bfd_generic_openr_next_archived_file
-#define sco_generic_stat_arch_elt bfd_generic_stat_arch_elt
-#define sco_slurp_armap bfd_false
-#define sco_slurp_extended_name_table bfd_true
-#define sco_write_armap (PROTO (boolean, (*), \
- (bfd *arch, unsigned int elength, struct orl *map, \
- unsigned int orl_count, int stridx))) bfd_false
-#define sco_truncate_arname bfd_dont_truncate_arname
-#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
-
-#define sco_close_and_cleanup bfd_generic_close_and_cleanup
-#define sco_set_section_contents (PROTO(boolean, (*), \
- (bfd *abfd, asection *section, PTR data, file_ptr offset, \
- bfd_size_type count))) bfd_false
-#define sco_get_section_contents bfd_generic_get_section_contents
-#define sco_new_section_hook (PROTO (boolean, (*), \
- (bfd *, sec_ptr))) bfd_true
-#define sco_get_symtab_upper_bound bfd_0u
-#define sco_get_symtab (PROTO (unsigned int, (*), \
- (bfd *, struct symbol_cache_entry **))) bfd_0u
-#define sco_get_reloc_upper_bound (PROTO (unsigned int, (*), \
- (bfd *, sec_ptr))) bfd_0u
-#define sco_canonicalize_reloc (PROTO (unsigned int, (*), \
- (bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
-#define sco_make_empty_symbol (PROTO ( \
- struct symbol_cache_entry *, (*), (bfd *))) bfd_false
-#define sco_print_symbol (PROTO (void, (*), \
- (bfd *, PTR, struct symbol_cache_entry *, \
- bfd_print_symbol_type))) bfd_false
-#define sco_get_symbol_info (PROTO (void, (*), \
- (bfd *, struct symbol_cache_entry *, \
- symbol_info *))) bfd_false
-#define sco_get_lineno (PROTO (alent *, (*), \
- (bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
-#define sco_set_arch_mach (PROTO (boolean, (*), \
- (bfd *, enum bfd_architecture, unsigned long))) bfd_false
-#define sco_find_nearest_line (PROTO (boolean, (*), \
- (bfd *abfd, struct sec *section, \
- struct symbol_cache_entry **symbols,bfd_vma offset, \
- CONST char **file, CONST char **func, unsigned int *line))) bfd_false
-#define sco_sizeof_headers (PROTO (int, (*), \
- (bfd *, boolean))) bfd_0
-
-#define sco_bfd_debug_info_start bfd_void
-#define sco_bfd_debug_info_end bfd_void
-#define sco_bfd_debug_info_accumulate (PROTO (void, (*), \
- (bfd *, struct sec *))) bfd_void
-#define sco_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
-#define sco_bfd_relax_section bfd_generic_relax_section
-#define sco_bfd_seclet_link \
- ((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
-#define sco_bfd_reloc_type_lookup \
- ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
-#define sco_bfd_make_debug_symbol \
- ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
-
-/* If somebody calls any byte-swapping routines, shoot them. */
-void
-swap_abort()
-{
- abort(); /* This way doesn't require any declaration for ANSI to fuck up */
-}
-#define NO_GET ((PROTO(bfd_vma, (*), ( bfd_byte *))) swap_abort )
-#define NO_PUT ((PROTO(void, (*), (bfd_vma, bfd_byte *))) swap_abort )
-
-bfd_target sco_core_vec =
- {
- "sco-core",
- bfd_target_unknown_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* leading underscore */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 3, /* minimum alignment power */
-
- NO_GET, NO_GET, NO_PUT, /* 64 bit data */
- NO_GET, NO_GET, NO_PUT, /* 32 bit data */
- NO_GET, NO_GET, NO_PUT, /* 16 bit data */
- NO_GET, NO_GET, NO_PUT, /* 64 bit hdrs */
- NO_GET, NO_GET, NO_PUT, /* 32 bit hdrs */
- NO_GET, NO_GET, NO_PUT, /* 16 bit hdrs */
-
- {_bfd_dummy_target, _bfd_dummy_target,
- _bfd_dummy_target, sco_core_file_p},
- {bfd_false, bfd_false, /* bfd_create_object */
- bfd_false, bfd_false},
- {bfd_false, bfd_false, /* bfd_write_contents */
- bfd_false, bfd_false},
-
- JUMP_TABLE(sco),
- (PTR) 0
-};
-
-
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