-/* BFD backend for generic a.out flavour 1 */
+/* A.out "format 1" file handling code
+ Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Written by Cygnus Support.
-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+This file is part of BFD, the Binary File Descriptor library.
-This file is part of BFD, the Binary File Diddler.
-
-BFD is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-BFD is distributed in the hope that it will be useful,
+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 BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <sysdep.h>
-struct external_exec;
#include <a.out.sun4.h>
#include "bfd.h"
-#include "liba.out.h"
+#include "libaout.h"
#include "libbfd.h"
-
-
#include "aout64.h"
#include "stab.gnu.h"
#include "ar.h"
+/*
+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{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
+
+*/
void (*bfd_error_trap)();
choose_reloc_size(abfd);
/* FIXME */
- N_SET_FLAGS (*execp, 0x81);
+ N_SET_FLAGS (*execp, 0x1);
WRITE_HEADERS(abfd, execp);
neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't
even portably access the stuff in between! */
-struct core {
+struct external_sparc_core {
int c_magic; /* Corefile magic number */
int c_len; /* Sizeof (struct core) */
- struct regs c_regs; /* General purpose registers -- MACHDEP SIZE */
- struct internal_exec c_aouthdr; /* A.out header */
+#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) */
portably know the size of fp_stuff.) */
};
-/* Supposedly the user stack grows downward from the bottom of kernel memory.
-Presuming that this remains true, this definition will work. */
-#define USRSTACK (-(128*1024*1024))
+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.) */
+};
-PROTO (static void, swapcore, (bfd *abfd, struct core *core));
+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) */
+ int c_ssize; /* Stack size (bytes) */
+ long 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 */
+};
-/* need this cast b/c ptr is really void * */
-#define core_hdr(bfd) (((struct suncordata *) (bfd->tdata))->hdr)
-#define core_datasec(bfd) (((struct suncordata *) ((bfd)->tdata))->data_section)
-#define core_stacksec(bfd) (((struct suncordata*)((bfd)->tdata))->stack_section)
-#define core_regsec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg_section)
-#define core_reg2sec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg2_section)
+/* byte-swap in the Sun-3 core structure */
+static void
+DEFUN(swapcore_sun3,(abfd, ext, intcore),
+ bfd *abfd AND
+ char *ext AND
+ 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);
+ NAME(aout,swap_exec_header_in)(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_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
+ bcopy (extcore->c_cmdname, intcore->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
+DEFUN(swapcore_sparc,(abfd, ext, intcore),
+ bfd *abfd AND
+ char *ext AND
+ 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);
+ NAME(aout,swap_exec_header_in)(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_ssize = bfd_h_get_32 (abfd, (unsigned char *)&extcore->c_ssize);
+ bcopy (extcore->c_cmdname, intcore->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. */
+#define SPARC_USRSTACK (-(128*1024*1024))
+ intcore->c_stacktop = SPARC_USRSTACK; /* By experimentation */
+}
+
+/* need this cast because ptr is really void * */
+#define core_hdr(bfd) (((struct suncoredata *) (bfd->tdata))->hdr)
+#define core_datasec(bfd) (((struct suncoredata *) ((bfd)->tdata))->data_section)
+#define core_stacksec(bfd) (((struct suncoredata*)((bfd)->tdata))->stack_section)
+#define core_regsec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg_section)
+#define core_reg2sec(bfd) (((struct suncoredata *) ((bfd)->tdata))->reg2_section)
/* These are stored in the bfd's tdata */
-struct suncordata {
-struct core *hdr; /* core file header */
-asection *data_section;
-asection *stack_section;
-asection *reg_section;
-asection *reg2_section;
+struct suncoredata {
+ struct internal_sunos_core *hdr; /* core file header */
+ asection *data_section;
+ asection *stack_section;
+ asection *reg_section;
+ asection *reg2_section;
};
static bfd_target *
unsigned char longbuf[4]; /* Raw bytes of various header fields */
int core_size;
int core_mag;
- struct core *core;
- char *rawptr;
+ struct internal_sunos_core *core;
+ char *extcore;
+ struct mergem {
+ struct suncoredata suncoredata;
+ struct internal_sunos_core internal_sunos_core;
+ char external_core[1];
+ } *mergem;
bfd_error = system_call_error;
if (bfd_seek (abfd, 0L, false) < 0) return 0;
- rawptr = bfd_zalloc (abfd, core_size + sizeof (struct suncordata));
- if (rawptr == NULL) {
+ mergem = (struct mergem *)bfd_zalloc (abfd, core_size + sizeof (struct mergem));
+ if (mergem == NULL) {
bfd_error = no_memory;
return 0;
}
- core = (struct core *) (rawptr + sizeof (struct suncordata));
+ extcore = mergem->external_core;
- if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size) {
+ if ((bfd_read ((PTR) extcore, 1, core_size, abfd)) != core_size) {
bfd_error = system_call_error;
- bfd_release (abfd, rawptr);
+ bfd_release (abfd, (char *)mergem);
return 0;
}
- swapcore (abfd, core);
- set_tdata (abfd, ((struct suncordata *) rawptr));
+ /* 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;
+ default:
+ bfd_error = system_call_error; /* FIXME */
+ bfd_release (abfd, (char *)mergem);
+ return 0;
+ }
+
+ set_tdata (abfd, &mergem->suncoredata);
core_hdr (abfd) = core;
/* create the sections. This is raunchy, but bfd_close wants to reclaim
if (core_stacksec (abfd) == NULL) {
loser:
bfd_error = no_memory;
- bfd_release (abfd, rawptr);
+ bfd_release (abfd, (char *)mergem);
return 0;
}
core_datasec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
core_regsec (abfd)->name = ".reg";
core_reg2sec (abfd)->name = ".reg2";
- core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
- core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
- core_regsec (abfd)->flags = SEC_ALLOC;
- core_reg2sec (abfd)->flags = SEC_ALLOC;
+ 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_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
core_stacksec (abfd)->size = core->c_ssize;
core_datasec (abfd)->size = core->c_dsize;
- core_regsec (abfd)->size = (sizeof core->c_regs);
- /* Float regs take up end of struct, except c_ucode. */
- core_reg2sec (abfd)->size = core_size - (sizeof core->c_ucode) -
- (file_ptr)(((struct core *)0)->fp_stuff);
+ core_regsec (abfd)->size = core->c_regs_size;
+ core_reg2sec (abfd)->size = core->fp_stuff_size;
- core_stacksec (abfd)->vma = (USRSTACK - core->c_ssize);
+ core_stacksec (abfd)->vma = (core->c_stacktop - core->c_ssize);
core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr);
core_regsec (abfd)->vma = -1;
core_reg2sec (abfd)->vma = -1;
core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
core_datasec (abfd)->filepos = core->c_len;
- /* In file header: */
- core_regsec (abfd)->filepos = (file_ptr)(&((struct core *)0)->c_regs);
- core_reg2sec (abfd)->filepos = (file_ptr)(((struct core *)0)->fp_stuff);
+ /* 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;
return false;
}
- return (bcmp ((char *)&core_hdr (core_bfd), (char*) &exec_hdr (exec_bfd),
+ return (bcmp ((char *)&core_hdr (core_bfd)->c_aouthdr,
+ (char *) exec_hdr (exec_bfd),
sizeof (struct internal_exec)) == 0) ? true : false;
}
-
-/* byte-swap core structure */
-/* FIXME, this needs more work to swap IN a core struct from raw bytes */
-static void
-DEFUN(swapcore,(abfd, core),
- bfd *abfd AND
- struct core *core)
-{
- struct external_exec exec_bytes;
-
- core->c_magic = bfd_h_get_32 (abfd, (unsigned char *)&core->c_magic);
- core->c_len = bfd_h_get_32 (abfd, (unsigned char *)&core->c_len );
- /* Leave integer registers in target byte order. */
- bcopy ((char *)&(core->c_aouthdr), (char *)&exec_bytes, EXEC_BYTES_SIZE);
- NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &core->c_aouthdr);
- core->c_signo = bfd_h_get_32 (abfd, (unsigned char *)&core->c_signo);
- core->c_tsize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_tsize);
- core->c_dsize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_dsize);
- core->c_ssize = bfd_h_get_32 (abfd, (unsigned char *)&core->c_ssize);
- /* Leave FP registers in target byte order. */
- /* Leave "c_ucode" unswapped for now, since we can't find it easily. */
-}
\f
/* We use BFD generic archive files. */
#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
#define aout_64_core_file_failing_signal sunos4_core_file_failing_signal
#define aout_64_core_file_matches_executable_p sunos4_core_file_matches_executable_p
+#define aout_64_bfd_debug_info_start bfd_void
+#define aout_64_bfd_debug_info_end bfd_void
+#define aout_64_bfd_debug_info_accumulate bfd_void
+
+#define aout_32_bfd_debug_info_start bfd_void
+#define aout_32_bfd_debug_info_end bfd_void
+#define aout_32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
+
+
+
/* We implement these routines ourselves, rather than using the generic
a.out versions. */
#define aout_write_object_contents sunos4_write_object_contents
bfd_target VECNAME =
{
-TARGETNAME,
- bfd_target_aout_flavour_enum,
- 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 | D_PAGED),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
-
- {_bfd_dummy_target, NAME(sunos,object_p),
- bfd_generic_archive_p, sunos4_core_file_p},
- {bfd_false, NAME(aout,mkobject),
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, NAME(aout,sunos4_write_object_contents), /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(JNAME(aout))
-};
+ TARGETNAME,
+ bfd_target_aout_flavour_enum,
+ 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 | D_PAGED),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ ' ', /* ar_pad_char */
+ 16, /* ar_max_namelen */
+ 3, /* minimum alignment power */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
+
+ {_bfd_dummy_target, NAME(sunos,object_p),
+ bfd_generic_archive_p, sunos4_core_file_p},
+ {bfd_false, NAME(aout,mkobject),
+ _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, NAME(aout,sunos4_write_object_contents), /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+
+ JUMP_TABLE(JNAME(aout))
+ };
projects / binutils-gdb.git / blobdiff