A couple of things from the net.
This commit is contained in:
David Henkel-Wallace
parent
6ad6ef422c
commit
10dea9ed17
@ -1,3 +1,14 @@
|
||||
Tue May 19 23:42:10 1992 D. V. Henkel-Wallace (gumby@cygnus.com)
|
||||
|
||||
* sco-core.c: new file from net.
|
||||
* aoutx.h (translate_to_native_sym_flags): bugfix from net:
|
||||
Now we have the hairy linker, it's possible to move symbols from
|
||||
one section into another. Actually make that work!
|
||||
|
||||
Sat May 16 17:57:59 1992 K. Richard Pixley (rich@rtl.cygnus.com)
|
||||
|
||||
* hosts/sun3.h: fix declaration of free.
|
||||
|
||||
Tue May 12 14:08:59 1992 Steve Chamberlain (sac@thepub.cygnus.com)
|
||||
|
||||
* coff-a29k.c (perform_reloc): fix bug in jmp/call evaluation
|
||||
|
||||
26
bfd/aoutx.h
26
bfd/aoutx.h
@ -935,6 +935,10 @@ DEFUN(translate_to_native_sym_flags,(sym_pointer, cache_ptr, abfd),
|
||||
{
|
||||
bfd_vma value = cache_ptr->value;
|
||||
|
||||
/* mask out any existing type bits in case copying from one section
|
||||
to another */
|
||||
sym_pointer->e_type[0] &= ~N_TYPE;
|
||||
|
||||
if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) {
|
||||
sym_pointer->e_type[0] |= N_BSS;
|
||||
}
|
||||
@ -1199,14 +1203,9 @@ DEFUN(NAME(aout,swap_std_reloc_out),(abfd, g, natptr),
|
||||
|
||||
/* name was clobbered by aout_write_syms to be symbol index */
|
||||
|
||||
if (output_section == &bfd_abs_section)
|
||||
{
|
||||
r_extern = 0;
|
||||
r_index = N_ABS;
|
||||
r_addend += sym->value;
|
||||
}
|
||||
else if (output_section == &bfd_com_section
|
||||
|| output_section == &bfd_und_section)
|
||||
if (output_section == &bfd_com_section
|
||||
|| output_section == &bfd_abs_section
|
||||
|| output_section == &bfd_und_section)
|
||||
{
|
||||
/* Fill in symbol */
|
||||
r_extern = 1;
|
||||
@ -1269,14 +1268,9 @@ DEFUN(NAME(aout,swap_ext_reloc_out),(abfd, g, natptr),
|
||||
r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma;
|
||||
|
||||
|
||||
if (output_section == &bfd_abs_section)
|
||||
{
|
||||
r_extern = 0;
|
||||
r_index = N_ABS;
|
||||
r_addend += sym->value;
|
||||
}
|
||||
else if (output_section == &bfd_com_section
|
||||
|| output_section == &bfd_und_section)
|
||||
if (output_section == &bfd_com_section
|
||||
|| output_section == &bfd_abs_section
|
||||
|| output_section == &bfd_und_section)
|
||||
{
|
||||
/* Fill in symbol */
|
||||
r_extern = 1;
|
||||
|
||||
288
bfd/sco-core.c
Normal file
288
bfd/sco-core.c
Normal file
@ -0,0 +1,288 @@
|
||||
/* 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 (C) 1988, 1989, 1991 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>
|
||||
|
||||
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;
|
||||
/* This struct is just for allocating two things with one zalloc, so
|
||||
they will be freed together, without violating alignment constraints. */
|
||||
|
||||
|
||||
bfd_seek(abfd, 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;
|
||||
}
|
||||
|
||||
/* 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_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
|
||||
/* 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 */
|
||||
' ', /* ar_pad_char */
|
||||
16, /* ar_max_namelen */
|
||||
3, /* minimum alignment power */
|
||||
NO_GET, NO_PUT, NO_GET, NO_PUT, NO_GET, NO_PUT, /* data */
|
||||
NO_GET, NO_PUT, NO_GET, NO_PUT, NO_GET, NO_PUT, /* 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),
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user