mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-24 12:39:59 +00:00
* host-aout.c: Change TARGETNAME to "a.out" to be compatible with
gdb. config/mt-hp300bsd: Change DEFAULT_VECTOR to host_aout_vec to prevent undefined symbol.
This commit is contained in:
Stu Grossman
parent
21a7f8b6de
commit
fa8c88b29d
@ -1,3 +1,9 @@
|
||||
Thu Jan 30 11:41:45 1992 Stu Grossman (grossman at cygnus.com)
|
||||
|
||||
* host-aout.c: Change TARGETNAME to "a.out" to be compatible with
|
||||
gdb. config/mt-hp300bsd: Change DEFAULT_VECTOR to host_aout_vec
|
||||
to prevent undefined symbol.
|
||||
|
||||
Thu Jan 30 07:26:53 1992 Steve Chamberlain (sac at rtl.cygnus.com)
|
||||
|
||||
Various lints found on PersSony
|
||||
|
||||
344
bfd/host-aout.c
344
bfd/host-aout.c
@ -22,325 +22,61 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
#include "sysdep.h"
|
||||
#include "libbfd.h"
|
||||
|
||||
#include <a.out.h>
|
||||
#include "libaout.h" /* BFD a.out internal data structures */
|
||||
#define ARCH_SIZE 32
|
||||
|
||||
#include "trad-core.h" /* Traditional Unix core files */
|
||||
/* When porting to a new system, you must supply:
|
||||
|
||||
/*======== This next section is stolen from ../include/a.out.gnu.h
|
||||
======== for all the losing Unix systems that don't provide these
|
||||
======== macros.
|
||||
|
||||
When porting to a new system, you must supply:
|
||||
|
||||
HOST_PAGE_SIZE
|
||||
HOST_SEGMENT_SIZE
|
||||
HOST_PAGE_SIZE (optional)
|
||||
HOST_SEGMENT_SIZE (optional -- defaults to page size)
|
||||
HOST_MACHINE_ARCH (optional)
|
||||
HOST_MACHINE_MACHINE (optional)
|
||||
HOST_TEXT_START_ADDR
|
||||
HOST_STACK_END_ADDR
|
||||
HOST_TEXT_START_ADDR (optional)
|
||||
HOST_STACK_END_ADDR (not used, except by trad-core ???)
|
||||
HOST_SHORT_HEADER_HACK (optional)
|
||||
|
||||
in the ../include/h-systemname.h file. */
|
||||
in the ./hosts/h-systemname.h file.
|
||||
|
||||
For most of these, you can get by with the values computed
|
||||
by the program aout-gen, which writes the result into aout-params.h. */
|
||||
|
||||
#include "aout-params.h"
|
||||
|
||||
#ifdef HOST_PAGE_SIZE
|
||||
#define PAGE_SIZE HOST_PAGE_SIZE
|
||||
#endif
|
||||
#ifdef HOST_SEGMENT_SIZE
|
||||
#define SEGMENT_SIZE HOST_SEGMENT_SIZE
|
||||
#else
|
||||
#define SEGMENT_SIZE PAGE_SIZE
|
||||
#endif
|
||||
#ifdef HOST_TEXT_START_ADDR
|
||||
#define TEXT_START_ADDR HOST_TEXT_START_ADDR
|
||||
#endif
|
||||
#ifdef HOST_STACK_END_ADDR
|
||||
#define STACK_END_ADDR HOST_STACK_END_ADDR
|
||||
|
||||
/*======== Stolen section begins below. =================================*/
|
||||
|
||||
#define a_info a_magic /* Old traditional Unix */
|
||||
|
||||
#define N_MAGIC(exec) ((exec).a_info & 0xffff)
|
||||
#define N_SET_MAGIC(exec, magic) \
|
||||
((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
|
||||
|
||||
/* Virtual Address of text segment from the a.out file. For OMAGIC,
|
||||
(almost always "unlinked .o's" these days), should be zero.
|
||||
For linked files, should reflect reality if we know it. */
|
||||
|
||||
#ifndef N_TXTADDR
|
||||
#define N_TXTADDR(x) (N_MAGIC(x)==OMAGIC? 0 : TEXT_START_ADDR)
|
||||
#endif
|
||||
#ifndef N_HEADER_IN_TEXT
|
||||
#ifdef HOST_SHORT_HEADER_HACK
|
||||
#define N_HEADER_IN_TEXT(x) 1
|
||||
#else
|
||||
#define N_HEADER_IN_TEXT(x) 0
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef N_BADMAG
|
||||
#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
|
||||
&& N_MAGIC(x) != NMAGIC \
|
||||
&& N_MAGIC(x) != ZMAGIC)
|
||||
#endif
|
||||
|
||||
/* This complexity is for encapsulated COFF support */
|
||||
#ifndef _N_HDROFF
|
||||
#define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec))
|
||||
#endif
|
||||
|
||||
#ifndef N_TXTOFF
|
||||
#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? \
|
||||
_N_HDROFF((x)) + sizeof (struct exec) : \
|
||||
sizeof (struct exec))
|
||||
#endif
|
||||
|
||||
|
||||
#ifndef N_DATOFF
|
||||
#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
|
||||
#endif
|
||||
|
||||
#ifndef N_TRELOFF
|
||||
#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data )
|
||||
#endif
|
||||
|
||||
#ifndef N_DRELOFF
|
||||
#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize )
|
||||
#endif
|
||||
|
||||
#ifndef N_SYMOFF
|
||||
#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize )
|
||||
#endif
|
||||
|
||||
#ifndef N_STROFF
|
||||
#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
|
||||
#endif
|
||||
|
||||
/* Address of text segment in memory after it is loaded. */
|
||||
#ifndef N_TXTADDR
|
||||
#define N_TXTADDR(x) 0
|
||||
#endif
|
||||
|
||||
#ifndef N_DATADDR
|
||||
#define N_DATADDR(x) \
|
||||
(N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) \
|
||||
: (SEGMENT_SIZE + ((N_TXTADDR(x)+(x).a_text-1) & ~(SEGMENT_SIZE-1))))
|
||||
#endif
|
||||
|
||||
/* Address of bss segment in memory after it is loaded. */
|
||||
#ifndef N_BSSADDR
|
||||
#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
|
||||
#endif
|
||||
|
||||
|
||||
static bfd_target *NAME(host_aout,callback) ();
|
||||
|
||||
/*SUPPRESS558*/
|
||||
/*SUPPRESS529*/
|
||||
|
||||
bfd_target *
|
||||
DEFUN(NAME(host_aout,object_p), (abfd),
|
||||
bfd *abfd)
|
||||
{
|
||||
unsigned char magicbuf[4]; /* Raw bytes of magic number from file */
|
||||
struct external_exec exec_bytes;
|
||||
struct internal_exec exec;
|
||||
|
||||
if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
|
||||
!= EXEC_BYTES_SIZE) {
|
||||
bfd_error = wrong_format;
|
||||
return 0;
|
||||
}
|
||||
|
||||
exec.a_magic = bfd_h_get_32 (abfd, exec_bytes.a_magic);
|
||||
|
||||
if (N_BADMAG (exec)) return 0;
|
||||
|
||||
NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
|
||||
return NAME(aout,some_aout_object_p) (abfd, &exec, NAME(host_aout,callback));
|
||||
}
|
||||
|
||||
/* Set parameters about this a.out file that are machine-dependent.
|
||||
This routine is called from NAME(some_aout_object_p) just before it returns.
|
||||
*/
|
||||
|
||||
static bfd_target *
|
||||
DEFUN(NAME(host_aout,callback), (abfd),
|
||||
bfd *abfd)
|
||||
{
|
||||
/* exec_hdr (abfd), a "struct internal_exec *", is just an abstraction,
|
||||
as far as the BFD a.out layer cares. We use it as a "struct exec *".
|
||||
This routine moves any data from the exec header,
|
||||
which is needed by the BFD code, out to places known to BFD. This
|
||||
allows the rest of the BFD code to not know or care about the structure
|
||||
of exec_hdr (abfd). */
|
||||
struct exec *execp = (struct exec *)exec_hdr (abfd);
|
||||
|
||||
/* The virtual memory addresses of the sections */
|
||||
obj_datasec (abfd)->vma = N_DATADDR(*execp);
|
||||
obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
|
||||
obj_textsec (abfd)->vma = N_TXTADDR(*execp);
|
||||
|
||||
/* The file offsets of the sections */
|
||||
obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
|
||||
obj_datasec (abfd)->filepos = N_DATOFF(*execp);
|
||||
|
||||
/* The file offsets of the relocation info */
|
||||
obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
|
||||
obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
|
||||
|
||||
/* The file offsets of the string table and symbol table. */
|
||||
obj_str_filepos (abfd) = N_STROFF (*execp);
|
||||
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
|
||||
#include "libaout.h" /* BFD a.out internal data structures */
|
||||
#include "aout/aout64.h"
|
||||
|
||||
#ifdef HOST_MACHINE_ARCH
|
||||
bfd_default_set_arch_mach(abfd,
|
||||
HOST_MACHINE_ARCH,
|
||||
#ifdef HOST_MACHINE_MACHINE
|
||||
HOST_MACHINE_MACHINE
|
||||
#else /* not HOST_MACHINE_MACHINE */
|
||||
0
|
||||
#endif /* not HOST_MACHINE_MACHINE */
|
||||
);
|
||||
#define SET_ARCH_MACH(abfd, execp) \
|
||||
bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, HOST_MACHINE_MACHINE)
|
||||
#else
|
||||
#define SET_ARCH_MACH(abfd, execp) \
|
||||
bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, 0)
|
||||
#endif
|
||||
#endif /* HOST_MACHINE_ARCH */
|
||||
|
||||
obj_reloc_entry_size (abfd) = sizeof (struct relocation_info);
|
||||
return abfd->xvec;
|
||||
}
|
||||
#define MY(OP) CAT(host_aout_,OP)
|
||||
#define TARGETNAME "a.out"
|
||||
|
||||
|
||||
boolean
|
||||
DEFUN(NAME(host_aout,mkobject), (abfd),
|
||||
bfd *abfd)
|
||||
{
|
||||
/* This struct is just for allocating two things with one zalloc, so
|
||||
they will be freed together, without violating alignment constraints. */
|
||||
struct aout_exec {
|
||||
struct aoutdata aoutdata;
|
||||
struct exec exec;
|
||||
} *rawptr;
|
||||
|
||||
bfd_error = system_call_error;
|
||||
|
||||
/* Use an intermediate variable for clarity */
|
||||
rawptr = (struct aout_exec *)bfd_zalloc (abfd, sizeof (struct aout_exec));
|
||||
|
||||
if (rawptr == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return false;
|
||||
}
|
||||
|
||||
set_tdata (abfd, &rawptr->aoutdata);
|
||||
/* exec_hdr (abfd), a "struct internal_exec *", is just an abstraction,
|
||||
as far as the BFD a.out layer cares. We use it as a "struct exec *". */
|
||||
exec_hdr (abfd) = (struct internal_exec *) &rawptr->exec;
|
||||
|
||||
/* For simplicity's sake we just make all the sections right here. */
|
||||
|
||||
obj_textsec (abfd) = (asection *)NULL;
|
||||
obj_datasec (abfd) = (asection *)NULL;
|
||||
obj_bsssec (abfd) = (asection *)NULL;
|
||||
bfd_make_section (abfd, ".text");
|
||||
bfd_make_section (abfd, ".data");
|
||||
bfd_make_section (abfd, ".bss");
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Write an object file in host a.out format.
|
||||
Section contents have already been written. We write the
|
||||
file header, symbols, and relocation. */
|
||||
|
||||
boolean
|
||||
DEFUN(NAME(host_aout,write_object_contents), (abfd),
|
||||
bfd *abfd)
|
||||
{
|
||||
/* This works because we are on the host system */
|
||||
#define EXEC_BYTES_SIZE (sizeof (struct exec))
|
||||
#define EXTERNAL_NLIST_SIZE (sizeof (struct nlist))
|
||||
size_t data_pad = 0;
|
||||
unsigned char exec_bytes[EXEC_BYTES_SIZE];
|
||||
struct exec *execp = (struct exec *)exec_hdr (abfd);
|
||||
|
||||
execp->a_text = obj_textsec (abfd)->size;
|
||||
|
||||
WRITE_HEADERS (abfd, execp);
|
||||
return true;
|
||||
}
|
||||
|
||||
/* We use BFD generic archive files. */
|
||||
#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
|
||||
#define aout_32_generic_stat_arch_elt bfd_generic_stat_arch_elt
|
||||
#define aout_32_slurp_armap bfd_false
|
||||
#define aout_32_slurp_extended_name_table bfd_true
|
||||
#define aout_32_write_armap (PROTO (boolean, (*), \
|
||||
(bfd *arch, unsigned int elength, struct orl *map, int orl_count, \
|
||||
int stridx))) bfd_false
|
||||
#define aout_32_truncate_arname bfd_dont_truncate_arname
|
||||
|
||||
/* No core file defined here -- configure in trad-core.c separately. */
|
||||
#define aout_32_core_file_failing_command bfd_false
|
||||
#define aout_32_core_file_failing_signal bfd_false
|
||||
#define aout_32_core_file_matches_executable_p bfd_true
|
||||
#define some_kinda_core_file_p bfd_false
|
||||
|
||||
#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
|
||||
|
||||
#define aout_64_openr_next_archived_file aout_32_openr_next_archived_file
|
||||
#define aout_64_generic_stat_arch_elt aout_32_generic_stat_arch_elt
|
||||
#define aout_64_slurp_armap aout_32_slurp_armap
|
||||
#define aout_64_slurp_extended_name_table aout_32_slurp_extended_name_table
|
||||
#define aout_64_write_armap aout_32_write_armap
|
||||
#define aout_64_truncate_arname aout_32_truncate_arname
|
||||
|
||||
#define aout_64_core_file_failing_command aout_32_core_file_failing_command
|
||||
#define aout_64_core_file_failing_signal aout_32_core_file_failing_signal
|
||||
#define aout_64_core_file_matches_executable_p aout_32_core_file_matches_executable_p
|
||||
|
||||
#define aout_64_bfd_debug_info_start aout_32_bfd_debug_info_start
|
||||
#define aout_64_bfd_debug_info_end aout_32_bfd_debug_info_end
|
||||
#define aout_64_bfd_debug_info_accumulate aout_32_bfd_debug_info_accumulate
|
||||
|
||||
|
||||
/* We implement these routines ourselves, rather than using the generic
|
||||
a.out versions. */
|
||||
#define aout_write_object_contents host_write_object_contents
|
||||
|
||||
bfd_target host_aout_big_vec =
|
||||
{
|
||||
"a.out-host-big",
|
||||
bfd_target_aout_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 | 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(host_aout,object_p),
|
||||
bfd_generic_archive_p, some_kinda_core_file_p},
|
||||
{bfd_false, NAME(host_aout,mkobject),
|
||||
_bfd_generic_mkarchive, bfd_false},
|
||||
{bfd_false, NAME(host_aout,write_object_contents), /* bfd_write_contents */
|
||||
_bfd_write_archive_contents, bfd_false},
|
||||
|
||||
JUMP_TABLE(JNAME(aout))
|
||||
};
|
||||
|
||||
bfd_target host_aout_little_vec =
|
||||
{
|
||||
"a.out-host-little",
|
||||
bfd_target_aout_flavour,
|
||||
false, /* target byte order */
|
||||
false, /* 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_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putb16, /* data */
|
||||
_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
|
||||
|
||||
{_bfd_dummy_target, NAME(host_aout,object_p),
|
||||
bfd_generic_archive_p, some_kinda_core_file_p},
|
||||
{bfd_false, NAME(host_aout,mkobject),
|
||||
_bfd_generic_mkarchive, bfd_false},
|
||||
{bfd_false, NAME(host_aout,write_object_contents), /* bfd_write_contents */
|
||||
_bfd_write_archive_contents, bfd_false},
|
||||
|
||||
JUMP_TABLE(JNAME(aout))
|
||||
};
|
||||
#include "aout-target.h"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user