859 lines
28 KiB
Objective-C
859 lines
28 KiB
Objective-C
/* A.out "format 1" file handling code for BFD.
|
||
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000
|
||
Free Software Foundation, Inc.
|
||
Written by Cygnus Support.
|
||
|
||
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/sun4.h"
|
||
#include "libaout.h" /* BFD a.out internal data structures */
|
||
|
||
#include "aout/aout64.h"
|
||
#include "aout/stab_gnu.h"
|
||
#include "aout/ar.h"
|
||
|
||
/* This is needed to reject a NewsOS file, e.g. in
|
||
gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
|
||
I needed to add M_UNKNOWN to recognize a 68000 object, so this will
|
||
probably no longer reject a NewsOS object. <ian@cygnus.com>. */
|
||
#ifndef MACHTYPE_OK
|
||
#define MACHTYPE_OK(mtype) \
|
||
(((mtype) == M_SPARC && bfd_lookup_arch (bfd_arch_sparc, 0) != NULL) \
|
||
|| (((mtype) == M_UNKNOWN || (mtype) == M_68010 || (mtype) == M_68020) \
|
||
&& bfd_lookup_arch (bfd_arch_m68k, 0) != NULL))
|
||
#endif
|
||
|
||
/*
|
||
The file @code{aoutf1.h} contains the code for BFD's
|
||
a.out back end. Control over the generated back end is given by these
|
||
two preprocessor names:
|
||
@table @code
|
||
@item ARCH_SIZE
|
||
This value should be either 32 or 64, depending upon the size of an
|
||
int in the target format. It changes the sizes of the structs which
|
||
perform the memory/disk mapping of structures.
|
||
|
||
The 64 bit backend may only be used if the host compiler supports 64
|
||
ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
|
||
With this name defined, @emph{all} bfd operations are performed with 64bit
|
||
arithmetic, not just those to a 64bit target.
|
||
|
||
@item TARGETNAME
|
||
The name put into the target vector.
|
||
@item
|
||
@end table
|
||
|
||
*/
|
||
|
||
/*SUPPRESS558*/
|
||
/*SUPPRESS529*/
|
||
|
||
#if ARCH_SIZE == 64
|
||
#define sunos_set_arch_mach sunos_64_set_arch_mach
|
||
#define sunos_write_object_contents aout_64_sunos4_write_object_contents
|
||
#else
|
||
#define sunos_set_arch_mach sunos_32_set_arch_mach
|
||
#define sunos_write_object_contents aout_32_sunos4_write_object_contents
|
||
#endif
|
||
|
||
static boolean sunos_merge_private_bfd_data PARAMS ((bfd *, bfd *));
|
||
static void sunos_set_arch_mach PARAMS ((bfd *, int));
|
||
static void choose_reloc_size PARAMS ((bfd *));
|
||
static boolean sunos_write_object_contents PARAMS ((bfd *));
|
||
static const bfd_target *sunos4_core_file_p PARAMS ((bfd *));
|
||
static char *sunos4_core_file_failing_command PARAMS ((bfd *));
|
||
static int sunos4_core_file_failing_signal PARAMS ((bfd *));
|
||
static boolean sunos4_core_file_matches_executable_p PARAMS ((bfd *, bfd *));
|
||
static boolean sunos4_set_sizes PARAMS ((bfd *));
|
||
|
||
/* Merge backend data into the output file.
|
||
This is necessary on sparclet-aout where we want the resultant machine
|
||
number to be M_SPARCLET if any input file is M_SPARCLET. */
|
||
|
||
#define MY_bfd_merge_private_bfd_data sunos_merge_private_bfd_data
|
||
|
||
static boolean
|
||
sunos_merge_private_bfd_data (ibfd, obfd)
|
||
bfd *ibfd, *obfd;
|
||
{
|
||
if (bfd_get_flavour (ibfd) != bfd_target_aout_flavour
|
||
|| bfd_get_flavour (obfd) != bfd_target_aout_flavour)
|
||
return true;
|
||
|
||
if (bfd_get_arch (obfd) == bfd_arch_sparc)
|
||
{
|
||
if (bfd_get_mach (obfd) < bfd_get_mach (ibfd))
|
||
bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd));
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* This is either sunos_32_set_arch_mach or sunos_64_set_arch_mach,
|
||
depending upon ARCH_SIZE. */
|
||
|
||
static void
|
||
sunos_set_arch_mach (abfd, machtype)
|
||
bfd *abfd;
|
||
int machtype;
|
||
{
|
||
/* Determine the architecture and machine type of the object file. */
|
||
enum bfd_architecture arch;
|
||
long machine;
|
||
switch (machtype)
|
||
{
|
||
|
||
case M_UNKNOWN:
|
||
/* Some Sun3s make magic numbers without cpu types in them, so
|
||
we'll default to the 68000. */
|
||
arch = bfd_arch_m68k;
|
||
machine = bfd_mach_m68000;
|
||
break;
|
||
|
||
case M_68010:
|
||
case M_HP200:
|
||
arch = bfd_arch_m68k;
|
||
machine = bfd_mach_m68010;
|
||
break;
|
||
|
||
case M_68020:
|
||
case M_HP300:
|
||
arch = bfd_arch_m68k;
|
||
machine = bfd_mach_m68020;
|
||
break;
|
||
|
||
case M_SPARC:
|
||
arch = bfd_arch_sparc;
|
||
machine = 0;
|
||
break;
|
||
|
||
case M_SPARCLET:
|
||
arch = bfd_arch_sparc;
|
||
machine = bfd_mach_sparc_sparclet;
|
||
break;
|
||
|
||
case M_SPARCLITE_LE:
|
||
arch = bfd_arch_sparc;
|
||
machine = bfd_mach_sparc_sparclite_le;
|
||
break;
|
||
|
||
case M_386:
|
||
case M_386_DYNIX:
|
||
arch = bfd_arch_i386;
|
||
machine = 0;
|
||
break;
|
||
|
||
case M_29K:
|
||
arch = bfd_arch_a29k;
|
||
machine = 0;
|
||
break;
|
||
|
||
case M_HPUX:
|
||
arch = bfd_arch_m68k;
|
||
machine = 0;
|
||
break;
|
||
|
||
default:
|
||
arch = bfd_arch_obscure;
|
||
machine = 0;
|
||
break;
|
||
}
|
||
bfd_set_arch_mach (abfd, arch, machine);
|
||
}
|
||
|
||
#define SET_ARCH_MACH(ABFD, EXEC) \
|
||
NAME(sunos,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
|
||
choose_reloc_size(ABFD);
|
||
|
||
/* Determine the size of a relocation entry, based on the architecture */
|
||
static void
|
||
choose_reloc_size (abfd)
|
||
bfd *abfd;
|
||
{
|
||
switch (bfd_get_arch (abfd))
|
||
{
|
||
case bfd_arch_sparc:
|
||
case bfd_arch_a29k:
|
||
obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
|
||
break;
|
||
default:
|
||
obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Write an object file in SunOS format. Section contents have
|
||
already been written. We write the file header, symbols, and
|
||
relocation. The real name of this function is either
|
||
aout_64_sunos4_write_object_contents or
|
||
aout_32_sunos4_write_object_contents, depending upon ARCH_SIZE. */
|
||
|
||
static boolean
|
||
sunos_write_object_contents (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct external_exec exec_bytes;
|
||
struct internal_exec *execp = exec_hdr (abfd);
|
||
|
||
/* Magic number, maestro, please! */
|
||
switch (bfd_get_arch (abfd))
|
||
{
|
||
case bfd_arch_m68k:
|
||
switch (bfd_get_mach (abfd))
|
||
{
|
||
case bfd_mach_m68000:
|
||
N_SET_MACHTYPE (*execp, M_UNKNOWN);
|
||
break;
|
||
case bfd_mach_m68010:
|
||
N_SET_MACHTYPE (*execp, M_68010);
|
||
break;
|
||
default:
|
||
case bfd_mach_m68020:
|
||
N_SET_MACHTYPE (*execp, M_68020);
|
||
break;
|
||
}
|
||
break;
|
||
case bfd_arch_sparc:
|
||
switch (bfd_get_mach (abfd))
|
||
{
|
||
case bfd_mach_sparc_sparclet:
|
||
N_SET_MACHTYPE (*execp, M_SPARCLET);
|
||
break;
|
||
case bfd_mach_sparc_sparclite_le:
|
||
N_SET_MACHTYPE (*execp, M_SPARCLITE_LE);
|
||
break;
|
||
default:
|
||
N_SET_MACHTYPE (*execp, M_SPARC);
|
||
break;
|
||
}
|
||
break;
|
||
case bfd_arch_i386:
|
||
N_SET_MACHTYPE (*execp, M_386);
|
||
break;
|
||
case bfd_arch_a29k:
|
||
N_SET_MACHTYPE (*execp, M_29K);
|
||
break;
|
||
default:
|
||
N_SET_MACHTYPE (*execp, M_UNKNOWN);
|
||
}
|
||
|
||
choose_reloc_size (abfd);
|
||
|
||
N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
|
||
|
||
N_SET_DYNAMIC (*execp, (long)(bfd_get_file_flags (abfd) & DYNAMIC));
|
||
|
||
WRITE_HEADERS (abfd, execp);
|
||
|
||
return true;
|
||
}
|
||
|
||
/* core files */
|
||
|
||
#define CORE_MAGIC 0x080456
|
||
#define CORE_NAMELEN 16
|
||
|
||
/* The core structure is taken from the Sun documentation.
|
||
Unfortunately, they don't document the FPA structure, or at least I
|
||
can't find it easily. Fortunately the core header contains its own
|
||
length. So this shouldn't cause problems, except for c_ucode, which
|
||
so far we don't use but is easy to find with a little arithmetic. */
|
||
|
||
/* But the reg structure can be gotten from the SPARC processor handbook.
|
||
This really should be in a GNU include file though so that gdb can use
|
||
the same info. */
|
||
struct regs
|
||
{
|
||
int r_psr;
|
||
int r_pc;
|
||
int r_npc;
|
||
int r_y;
|
||
int r_g1;
|
||
int r_g2;
|
||
int r_g3;
|
||
int r_g4;
|
||
int r_g5;
|
||
int r_g6;
|
||
int r_g7;
|
||
int r_o0;
|
||
int r_o1;
|
||
int r_o2;
|
||
int r_o3;
|
||
int r_o4;
|
||
int r_o5;
|
||
int r_o6;
|
||
int r_o7;
|
||
};
|
||
|
||
/* Taken from Sun documentation: */
|
||
|
||
/* FIXME: It's worse than we expect. This struct contains TWO substructs
|
||
neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't
|
||
even portably access the stuff in between! */
|
||
|
||
struct external_sparc_core
|
||
{
|
||
int c_magic; /* Corefile magic number */
|
||
int c_len; /* Sizeof (struct core) */
|
||
#define SPARC_CORE_LEN 432
|
||
int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */
|
||
struct external_exec c_aouthdr; /* A.out header */
|
||
int c_signo; /* Killing signal, if any */
|
||
int c_tsize; /* Text size (bytes) */
|
||
int c_dsize; /* Data size (bytes) */
|
||
int c_ssize; /* Stack size (bytes) */
|
||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||
double fp_stuff[1]; /* external FPU state (size unknown by us) */
|
||
/* The type "double" is critical here, for alignment.
|
||
SunOS declares a struct here, but the struct's alignment
|
||
is double since it contains doubles. */
|
||
int c_ucode; /* Exception no. from u_code */
|
||
/* (this member is not accessible by name since we don't
|
||
portably know the size of fp_stuff.) */
|
||
};
|
||
|
||
/* Core files generated by the BCP (the part of Solaris which allows
|
||
it to run SunOS4 a.out files). */
|
||
struct external_solaris_bcp_core
|
||
{
|
||
int c_magic; /* Corefile magic number */
|
||
int c_len; /* Sizeof (struct core) */
|
||
#define SOLARIS_BCP_CORE_LEN 456
|
||
int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */
|
||
int c_exdata_vp; /* exdata structure */
|
||
int c_exdata_tsize;
|
||
int c_exdata_dsize;
|
||
int c_exdata_bsize;
|
||
int c_exdata_lsize;
|
||
int c_exdata_nshlibs;
|
||
short c_exdata_mach;
|
||
short c_exdata_mag;
|
||
int c_exdata_toffset;
|
||
int c_exdata_doffset;
|
||
int c_exdata_loffset;
|
||
int c_exdata_txtorg;
|
||
int c_exdata_datorg;
|
||
int c_exdata_entloc;
|
||
int c_signo; /* Killing signal, if any */
|
||
int c_tsize; /* Text size (bytes) */
|
||
int c_dsize; /* Data size (bytes) */
|
||
int c_ssize; /* Stack size (bytes) */
|
||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||
double fp_stuff[1]; /* external FPU state (size unknown by us) */
|
||
/* The type "double" is critical here, for alignment.
|
||
SunOS declares a struct here, but the struct's alignment
|
||
is double since it contains doubles. */
|
||
int c_ucode; /* Exception no. from u_code */
|
||
/* (this member is not accessible by name since we don't
|
||
portably know the size of fp_stuff.) */
|
||
};
|
||
|
||
struct external_sun3_core
|
||
{
|
||
int c_magic; /* Corefile magic number */
|
||
int c_len; /* Sizeof (struct core) */
|
||
#define SUN3_CORE_LEN 826 /* As of SunOS 4.1.1 */
|
||
int c_regs[18]; /* General purpose registers -- MACHDEP SIZE */
|
||
struct external_exec c_aouthdr; /* A.out header */
|
||
int c_signo; /* Killing signal, if any */
|
||
int c_tsize; /* Text size (bytes) */
|
||
int c_dsize; /* Data size (bytes) */
|
||
int c_ssize; /* Stack size (bytes) */
|
||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||
double fp_stuff[1]; /* external FPU state (size unknown by us) */
|
||
/* The type "double" is critical here, for alignment.
|
||
SunOS declares a struct here, but the struct's alignment
|
||
is double since it contains doubles. */
|
||
int c_ucode; /* Exception no. from u_code */
|
||
/* (this member is not accessible by name since we don't
|
||
portably know the size of fp_stuff.) */
|
||
};
|
||
|
||
struct internal_sunos_core
|
||
{
|
||
int c_magic; /* Corefile magic number */
|
||
int c_len; /* Sizeof (struct core) */
|
||
long c_regs_pos; /* file offset of General purpose registers */
|
||
int c_regs_size; /* size of General purpose registers */
|
||
struct internal_exec c_aouthdr; /* A.out header */
|
||
int c_signo; /* Killing signal, if any */
|
||
int c_tsize; /* Text size (bytes) */
|
||
int c_dsize; /* Data size (bytes) */
|
||
bfd_vma c_data_addr; /* Data start (address) */
|
||
int c_ssize; /* Stack size (bytes) */
|
||
bfd_vma c_stacktop; /* Stack top (address) */
|
||
char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
|
||
long fp_stuff_pos; /* file offset of external FPU state (regs) */
|
||
int fp_stuff_size; /* Size of it */
|
||
int c_ucode; /* Exception no. from u_code */
|
||
};
|
||
|
||
static void swapcore_sun3
|
||
PARAMS ((bfd *, char *, struct internal_sunos_core *));
|
||
static void swapcore_sparc
|
||
PARAMS ((bfd *, char *, struct internal_sunos_core *));
|
||
static void swapcore_solaris_bcp
|
||
PARAMS ((bfd *, char *, struct internal_sunos_core *));
|
||
|
||
/* byte-swap in the Sun-3 core structure */
|
||
static void
|
||
swapcore_sun3 (abfd, ext, intcore)
|
||
bfd *abfd;
|
||
char *ext;
|
||
struct internal_sunos_core *intcore;
|
||
{
|
||
struct external_sun3_core *extcore = (struct external_sun3_core *) ext;
|
||
|
||
intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_magic);
|
||
intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_len);
|
||
intcore->c_regs_pos = (long) (((struct external_sun3_core *) 0)->c_regs);
|
||
intcore->c_regs_size = sizeof (extcore->c_regs);
|
||
#if ARCH_SIZE == 64
|
||
aout_64_swap_exec_header_in
|
||
#else
|
||
aout_32_swap_exec_header_in
|
||
#endif
|
||
(abfd, &extcore->c_aouthdr, &intcore->c_aouthdr);
|
||
intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_signo);
|
||
intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_tsize);
|
||
intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_dsize);
|
||
intcore->c_data_addr = N_DATADDR (intcore->c_aouthdr);
|
||
intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_ssize);
|
||
memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname));
|
||
intcore->fp_stuff_pos = (long) (((struct external_sun3_core *) 0)->fp_stuff);
|
||
/* FP stuff takes up whole rest of struct, except c_ucode. */
|
||
intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
||
(file_ptr) (((struct external_sun3_core *) 0)->fp_stuff);
|
||
/* Ucode is the last thing in the struct -- just before the end */
|
||
intcore->c_ucode =
|
||
bfd_h_get_32 (abfd,
|
||
intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *) extcore);
|
||
intcore->c_stacktop = 0x0E000000; /* By experimentation */
|
||
}
|
||
|
||
/* byte-swap in the Sparc core structure */
|
||
static void
|
||
swapcore_sparc (abfd, ext, intcore)
|
||
bfd *abfd;
|
||
char *ext;
|
||
struct internal_sunos_core *intcore;
|
||
{
|
||
struct external_sparc_core *extcore = (struct external_sparc_core *) ext;
|
||
|
||
intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_magic);
|
||
intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_len);
|
||
intcore->c_regs_pos = (long) (((struct external_sparc_core *) 0)->c_regs);
|
||
intcore->c_regs_size = sizeof (extcore->c_regs);
|
||
#if ARCH_SIZE == 64
|
||
aout_64_swap_exec_header_in
|
||
#else
|
||
aout_32_swap_exec_header_in
|
||
#endif
|
||
(abfd, &extcore->c_aouthdr, &intcore->c_aouthdr);
|
||
intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_signo);
|
||
intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_tsize);
|
||
intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_dsize);
|
||
intcore->c_data_addr = N_DATADDR (intcore->c_aouthdr);
|
||
intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_ssize);
|
||
memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname));
|
||
intcore->fp_stuff_pos = (long) (((struct external_sparc_core *) 0)->fp_stuff);
|
||
/* FP stuff takes up whole rest of struct, except c_ucode. */
|
||
intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
||
(file_ptr) (((struct external_sparc_core *) 0)->fp_stuff);
|
||
/* Ucode is the last thing in the struct -- just before the end */
|
||
intcore->c_ucode =
|
||
bfd_h_get_32 (abfd,
|
||
intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *) extcore);
|
||
|
||
/* Supposedly the user stack grows downward from the bottom of kernel memory.
|
||
Presuming that this remains true, this definition will work. */
|
||
/* Now sun has provided us with another challenge. The value is different
|
||
for sparc2 and sparc10 (both running SunOS 4.1.3). We pick one or
|
||
the other based on the current value of the stack pointer. This
|
||
loses (a) if the stack pointer has been clobbered, or (b) if the stack
|
||
is larger than 128 megabytes.
|
||
|
||
It's times like these you're glad they're switching to ELF.
|
||
|
||
Note that using include files or nlist on /vmunix would be wrong,
|
||
because we want the value for this core file, no matter what kind of
|
||
machine we were compiled on or are running on. */
|
||
#define SPARC_USRSTACK_SPARC2 ((bfd_vma)0xf8000000)
|
||
#define SPARC_USRSTACK_SPARC10 ((bfd_vma)0xf0000000)
|
||
{
|
||
bfd_vma sp = bfd_h_get_32
|
||
(abfd, (unsigned char *) &((struct regs *) &extcore->c_regs[0])->r_o6);
|
||
if (sp < SPARC_USRSTACK_SPARC10)
|
||
intcore->c_stacktop = SPARC_USRSTACK_SPARC10;
|
||
else
|
||
intcore->c_stacktop = SPARC_USRSTACK_SPARC2;
|
||
}
|
||
}
|
||
|
||
/* byte-swap in the Solaris BCP core structure */
|
||
static void
|
||
swapcore_solaris_bcp (abfd, ext, intcore)
|
||
bfd *abfd;
|
||
char *ext;
|
||
struct internal_sunos_core *intcore;
|
||
{
|
||
struct external_solaris_bcp_core *extcore =
|
||
(struct external_solaris_bcp_core *) ext;
|
||
|
||
intcore->c_magic = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_magic);
|
||
intcore->c_len = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_len);
|
||
intcore->c_regs_pos = (long) (((struct external_solaris_bcp_core *) 0)->c_regs);
|
||
intcore->c_regs_size = sizeof (extcore->c_regs);
|
||
|
||
/* The Solaris BCP exdata structure does not contain an a_syms field,
|
||
so we are unable to synthesize an internal exec header.
|
||
Luckily we are able to figure out the start address of the data section,
|
||
which is the only thing needed from the internal exec header,
|
||
from the exdata structure.
|
||
|
||
As of Solaris 2.3, BCP core files for statically linked executables
|
||
are buggy. The exdata structure is not properly filled in, and
|
||
the data section is written from address zero instead of the data
|
||
start address. */
|
||
memset ((PTR) &intcore->c_aouthdr, 0, sizeof (struct internal_exec));
|
||
intcore->c_data_addr =
|
||
bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_exdata_datorg);
|
||
intcore->c_signo = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_signo);
|
||
intcore->c_tsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_tsize);
|
||
intcore->c_dsize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_dsize);
|
||
intcore->c_ssize = bfd_h_get_32 (abfd, (unsigned char *) &extcore->c_ssize);
|
||
memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname));
|
||
intcore->fp_stuff_pos =
|
||
(long) (((struct external_solaris_bcp_core *) 0)->fp_stuff);
|
||
/* FP stuff takes up whole rest of struct, except c_ucode. */
|
||
intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) -
|
||
(file_ptr) (((struct external_solaris_bcp_core *) 0)->fp_stuff);
|
||
/* Ucode is the last thing in the struct -- just before the end */
|
||
intcore->c_ucode =
|
||
bfd_h_get_32 (abfd,
|
||
intcore->c_len - sizeof (extcore->c_ucode) + (unsigned char *) extcore);
|
||
|
||
/* Supposedly the user stack grows downward from the bottom of kernel memory.
|
||
Presuming that this remains true, this definition will work. */
|
||
/* Now sun has provided us with another challenge. The value is different
|
||
for sparc2 and sparc10 (both running SunOS 4.1.3). We pick one or
|
||
the other based on the current value of the stack pointer. This
|
||
loses (a) if the stack pointer has been clobbered, or (b) if the stack
|
||
is larger than 128 megabytes.
|
||
|
||
It's times like these you're glad they're switching to ELF.
|
||
|
||
Note that using include files or nlist on /vmunix would be wrong,
|
||
because we want the value for this core file, no matter what kind of
|
||
machine we were compiled on or are running on. */
|
||
#define SPARC_USRSTACK_SPARC2 ((bfd_vma)0xf8000000)
|
||
#define SPARC_USRSTACK_SPARC10 ((bfd_vma)0xf0000000)
|
||
{
|
||
bfd_vma sp = bfd_h_get_32
|
||
(abfd, (unsigned char *) &((struct regs *) &extcore->c_regs[0])->r_o6);
|
||
if (sp < SPARC_USRSTACK_SPARC10)
|
||
intcore->c_stacktop = SPARC_USRSTACK_SPARC10;
|
||
else
|
||
intcore->c_stacktop = SPARC_USRSTACK_SPARC2;
|
||
}
|
||
}
|
||
|
||
/* need this cast because ptr is really void * */
|
||
#define core_hdr(bfd) ((bfd)->tdata.sun_core_data)
|
||
#define core_datasec(bfd) (core_hdr(bfd)->data_section)
|
||
#define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
|
||
#define core_regsec(bfd) (core_hdr(bfd)->reg_section)
|
||
#define core_reg2sec(bfd) (core_hdr(bfd)->reg2_section)
|
||
|
||
/* These are stored in the bfd's tdata */
|
||
struct sun_core_struct
|
||
{
|
||
struct internal_sunos_core *hdr; /* core file header */
|
||
asection *data_section;
|
||
asection *stack_section;
|
||
asection *reg_section;
|
||
asection *reg2_section;
|
||
};
|
||
|
||
static const bfd_target *
|
||
sunos4_core_file_p (abfd)
|
||
bfd *abfd;
|
||
{
|
||
unsigned char longbuf[4]; /* Raw bytes of various header fields */
|
||
bfd_size_type core_size;
|
||
unsigned long core_mag;
|
||
struct internal_sunos_core *core;
|
||
char *extcore;
|
||
struct mergem
|
||
{
|
||
struct sun_core_struct suncoredata;
|
||
struct internal_sunos_core internal_sunos_core;
|
||
char external_core[1];
|
||
}
|
||
*mergem;
|
||
|
||
if (bfd_read ((PTR) longbuf, 1, sizeof (longbuf), abfd) !=
|
||
sizeof (longbuf))
|
||
return 0;
|
||
core_mag = bfd_h_get_32 (abfd, longbuf);
|
||
|
||
if (core_mag != CORE_MAGIC)
|
||
return 0;
|
||
|
||
/* SunOS core headers can vary in length; second word is size; */
|
||
if (bfd_read ((PTR) longbuf, 1, sizeof (longbuf), abfd) !=
|
||
sizeof (longbuf))
|
||
return 0;
|
||
core_size = bfd_h_get_32 (abfd, longbuf);
|
||
/* Sanity check */
|
||
if (core_size > 20000)
|
||
return 0;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) < 0)
|
||
return 0;
|
||
|
||
mergem = (struct mergem *) bfd_zalloc (abfd, core_size + sizeof (struct mergem));
|
||
if (mergem == NULL)
|
||
return 0;
|
||
|
||
extcore = mergem->external_core;
|
||
|
||
if ((bfd_read ((PTR) extcore, 1, core_size, abfd)) != core_size)
|
||
{
|
||
bfd_release (abfd, (char *) mergem);
|
||
return 0;
|
||
}
|
||
|
||
/* Validate that it's a core file we know how to handle, due to sun
|
||
botching the positioning of registers and other fields in a machine
|
||
dependent way. */
|
||
core = &mergem->internal_sunos_core;
|
||
switch (core_size)
|
||
{
|
||
case SPARC_CORE_LEN:
|
||
swapcore_sparc (abfd, extcore, core);
|
||
break;
|
||
case SUN3_CORE_LEN:
|
||
swapcore_sun3 (abfd, extcore, core);
|
||
break;
|
||
case SOLARIS_BCP_CORE_LEN:
|
||
swapcore_solaris_bcp (abfd, extcore, core);
|
||
break;
|
||
default:
|
||
bfd_set_error (bfd_error_system_call); /* FIXME */
|
||
bfd_release (abfd, (char *) mergem);
|
||
return 0;
|
||
}
|
||
|
||
abfd->tdata.sun_core_data = &mergem->suncoredata;
|
||
abfd->tdata.sun_core_data->hdr = core;
|
||
|
||
/* create the sections. This is raunchy, but bfd_close wants to reclaim
|
||
them */
|
||
core_stacksec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_stacksec (abfd) == NULL)
|
||
{
|
||
loser:
|
||
bfd_release (abfd, (char *) mergem);
|
||
return 0;
|
||
}
|
||
core_datasec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_datasec (abfd) == NULL)
|
||
{
|
||
loser1:
|
||
bfd_release (abfd, core_stacksec (abfd));
|
||
goto loser;
|
||
}
|
||
core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_regsec (abfd) == NULL)
|
||
{
|
||
loser2:
|
||
bfd_release (abfd, core_datasec (abfd));
|
||
goto loser1;
|
||
}
|
||
core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
|
||
if (core_reg2sec (abfd) == NULL)
|
||
{
|
||
bfd_release (abfd, core_regsec (abfd));
|
||
goto loser2;
|
||
}
|
||
|
||
core_stacksec (abfd)->name = ".stack";
|
||
core_datasec (abfd)->name = ".data";
|
||
core_regsec (abfd)->name = ".reg";
|
||
core_reg2sec (abfd)->name = ".reg2";
|
||
|
||
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_HAS_CONTENTS;
|
||
core_reg2sec (abfd)->flags = SEC_HAS_CONTENTS;
|
||
|
||
core_stacksec (abfd)->_raw_size = core->c_ssize;
|
||
core_datasec (abfd)->_raw_size = core->c_dsize;
|
||
core_regsec (abfd)->_raw_size = core->c_regs_size;
|
||
core_reg2sec (abfd)->_raw_size = core->fp_stuff_size;
|
||
|
||
core_stacksec (abfd)->vma = (core->c_stacktop - core->c_ssize);
|
||
core_datasec (abfd)->vma = core->c_data_addr;
|
||
core_regsec (abfd)->vma = 0;
|
||
core_reg2sec (abfd)->vma = 0;
|
||
|
||
core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
|
||
core_datasec (abfd)->filepos = core->c_len;
|
||
/* We'll access the regs afresh in the core file, like any section: */
|
||
core_regsec (abfd)->filepos = (file_ptr) core->c_regs_pos;
|
||
core_reg2sec (abfd)->filepos = (file_ptr) core->fp_stuff_pos;
|
||
|
||
/* Align to word at least */
|
||
core_stacksec (abfd)->alignment_power = 2;
|
||
core_datasec (abfd)->alignment_power = 2;
|
||
core_regsec (abfd)->alignment_power = 2;
|
||
core_reg2sec (abfd)->alignment_power = 2;
|
||
|
||
abfd->sections = core_stacksec (abfd);
|
||
core_stacksec (abfd)->next = core_datasec (abfd);
|
||
core_datasec (abfd)->next = core_regsec (abfd);
|
||
core_regsec (abfd)->next = core_reg2sec (abfd);
|
||
|
||
abfd->section_count = 4;
|
||
|
||
return abfd->xvec;
|
||
}
|
||
|
||
static char *
|
||
sunos4_core_file_failing_command (abfd)
|
||
bfd *abfd;
|
||
{
|
||
return core_hdr (abfd)->hdr->c_cmdname;
|
||
}
|
||
|
||
static int
|
||
sunos4_core_file_failing_signal (abfd)
|
||
bfd *abfd;
|
||
{
|
||
return core_hdr (abfd)->hdr->c_signo;
|
||
}
|
||
|
||
static boolean
|
||
sunos4_core_file_matches_executable_p (core_bfd, exec_bfd)
|
||
bfd *core_bfd;
|
||
bfd *exec_bfd;
|
||
{
|
||
if (core_bfd->xvec != exec_bfd->xvec)
|
||
{
|
||
bfd_set_error (bfd_error_system_call);
|
||
return false;
|
||
}
|
||
|
||
/* Solaris core files do not include an aouthdr. */
|
||
if ((core_hdr (core_bfd)->hdr)->c_len == SOLARIS_BCP_CORE_LEN)
|
||
return true;
|
||
|
||
return (memcmp ((char *) &((core_hdr (core_bfd)->hdr)->c_aouthdr),
|
||
(char *) exec_hdr (exec_bfd),
|
||
sizeof (struct internal_exec)) == 0) ? true : false;
|
||
}
|
||
|
||
#define MY_set_sizes sunos4_set_sizes
|
||
static boolean
|
||
sunos4_set_sizes (abfd)
|
||
bfd *abfd;
|
||
{
|
||
switch (bfd_get_arch (abfd))
|
||
{
|
||
default:
|
||
return false;
|
||
case bfd_arch_sparc:
|
||
adata (abfd).page_size = 0x2000;
|
||
adata (abfd).segment_size = 0x2000;
|
||
adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
|
||
return true;
|
||
case bfd_arch_m68k:
|
||
adata (abfd).page_size = 0x2000;
|
||
adata (abfd).segment_size = 0x20000;
|
||
adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
|
||
return true;
|
||
}
|
||
}
|
||
|
||
/* We default to setting the toolversion field to 1, as is required by
|
||
SunOS. */
|
||
#ifndef MY_exec_hdr_flags
|
||
#define MY_exec_hdr_flags 1
|
||
#endif
|
||
|
||
#ifndef MY_entry_is_text_address
|
||
#define MY_entry_is_text_address 0
|
||
#endif
|
||
#ifndef MY_add_dynamic_symbols
|
||
#define MY_add_dynamic_symbols 0
|
||
#endif
|
||
#ifndef MY_add_one_symbol
|
||
#define MY_add_one_symbol 0
|
||
#endif
|
||
#ifndef MY_link_dynamic_object
|
||
#define MY_link_dynamic_object 0
|
||
#endif
|
||
#ifndef MY_write_dynamic_symbol
|
||
#define MY_write_dynamic_symbol 0
|
||
#endif
|
||
#ifndef MY_check_dynamic_reloc
|
||
#define MY_check_dynamic_reloc 0
|
||
#endif
|
||
#ifndef MY_finish_dynamic_link
|
||
#define MY_finish_dynamic_link 0
|
||
#endif
|
||
|
||
static CONST struct aout_backend_data sunos4_aout_backend =
|
||
{
|
||
0, /* zmagic files are not contiguous */
|
||
1, /* text includes header */
|
||
MY_entry_is_text_address,
|
||
MY_exec_hdr_flags,
|
||
0, /* default text vma */
|
||
sunos4_set_sizes,
|
||
0, /* header is counted in zmagic text */
|
||
MY_add_dynamic_symbols,
|
||
MY_add_one_symbol,
|
||
MY_link_dynamic_object,
|
||
MY_write_dynamic_symbol,
|
||
MY_check_dynamic_reloc,
|
||
MY_finish_dynamic_link
|
||
};
|
||
|
||
#define MY_core_file_failing_command sunos4_core_file_failing_command
|
||
#define MY_core_file_failing_signal sunos4_core_file_failing_signal
|
||
#define MY_core_file_matches_executable_p sunos4_core_file_matches_executable_p
|
||
|
||
#define MY_bfd_debug_info_start bfd_void
|
||
#define MY_bfd_debug_info_end bfd_void
|
||
#define MY_bfd_debug_info_accumulate \
|
||
(void (*) PARAMS ((bfd *, struct sec *))) bfd_void
|
||
#define MY_core_file_p sunos4_core_file_p
|
||
#define MY_write_object_contents NAME(aout,sunos4_write_object_contents)
|
||
#define MY_backend_data &sunos4_aout_backend
|
||
|
||
#ifndef TARGET_IS_LITTLE_ENDIAN_P
|
||
#define TARGET_IS_BIG_ENDIAN_P
|
||
#endif
|
||
|
||
#include "aout-target.h"
|