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- /* A.out "format 1" file handling code
- Copyright (C) 1990-1991 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., 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 "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)();
-
- static bfd_target *sunos4_callback ();
-
- /*SUPPRESS558*/
- /*SUPPRESS529*/
-
- bfd_target *
- DEFUN(NAME(sunos,object_p), (abfd),
- bfd *abfd)
- {
- unsigned char magicbuf[4]; /* Raw bytes of magic number from file */
- unsigned long magic; /* Swapped magic number */
-
- bfd_error = system_call_error;
-
- if (bfd_read ((PTR)magicbuf, 1 , 4, abfd) !=
- sizeof (magicbuf))
- return 0;
- magic = bfd_h_get_32 (abfd, magicbuf);
-
- if (N_BADMAG (*((struct internal_exec *) &magic))) return 0;
-
- return NAME(aout,some_aout_object_p) (abfd, sunos4_callback);
- }
-
- /* Determine the size of a relocation entry, based on the architecture */
- static void
- DEFUN(choose_reloc_size,(abfd),
- bfd *abfd)
- {
- switch (abfd->obj_arch) {
- 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;
- }
- }
-
- /* Set parameters about this a.out file that are machine-dependent.
- This routine is called from some_aout_object_p just before it returns. */
-
- static bfd_target *
- sunos4_callback (abfd)
- bfd *abfd;
- {
- struct internal_exec *execp = exec_hdr (abfd);
-
- WORK_OUT_FILE_POSITIONS(abfd, execp);
-
- /* Determine the architecture and machine type of the object file. */
- switch (N_MACHTYPE (*exec_hdr (abfd))) {
-
- case M_UNKNOWN:
- abfd->obj_arch = bfd_arch_unknown;
- abfd->obj_machine = 0;
- break;
-
- case M_68010:
- abfd->obj_arch = bfd_arch_m68k;
- abfd->obj_machine = 68010;
- break;
-
- case M_68020:
- abfd->obj_arch = bfd_arch_m68k;
- abfd->obj_machine = 68020;
- break;
-
- case M_SPARC:
- abfd->obj_arch = bfd_arch_sparc;
- abfd->obj_machine = 0;
- break;
-
- case M_386:
- abfd->obj_arch = bfd_arch_i386;
- abfd->obj_machine = 0;
- break;
-
- case M_29K:
- abfd->obj_arch = bfd_arch_a29k;
- abfd->obj_machine = 0;
- break;
-
- default:
- abfd->obj_arch = bfd_arch_obscure;
- abfd->obj_machine = 0;
- break;
- }
-
- choose_reloc_size(abfd);
- return abfd->xvec;
- }
-
-
- /* Write an object file in SunOS format.
- Section contents have already been written. We write the
- file header, symbols, and relocation. */
-
- boolean
- DEFUN(NAME(aout,sunos4_write_object_contents),(abfd),
- bfd *abfd)
-
- {
- bfd_size_type data_pad = 0;
- struct external_exec exec_bytes;
- struct internal_exec *execp = exec_hdr (abfd);
-
-
-
- execp->a_text = obj_textsec (abfd)->size;
-
- /* Magic number, maestro, please! */
- switch (bfd_get_architecture(abfd)) {
- case bfd_arch_m68k:
- switch (bfd_get_machine(abfd)) {
- case 68010:
- N_SET_MACHTYPE(*execp, M_68010);
- break;
- default:
- case 68020:
- N_SET_MACHTYPE(*execp, M_68020);
- break;
- }
- break;
- case bfd_arch_sparc:
- N_SET_MACHTYPE(*execp, M_SPARC);
- 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);
-
- /* FIXME */
- N_SET_FLAGS (*execp, 0x1);
-
- 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.) */
- };
-
- 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) */
- 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 */
- };
-
- /* 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_exec exec_bytes;
- 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 Sun-4(!!) 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;
- int sp;
-
- 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. */
- #ifdef sprite
- sp = extcore->c_regs[17];
- intcore->c_stacktop = (sp + intcore->c_ssize) & ~(getpagesize() - 1);
- #else
- #define USRSTACK (-(128*1024*1024))
- intcore->c_stacktop = USRSTACK; /* By experimentation */
- #undef USRSTACK
- #endif
- /*#define USRSTACK (-(128*1024*1024))
- intcore->c_stacktop = USRSTACK; /* By experimentation */
- #undef USRSTACK*/
- }
-
- /* 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 suncoredata {
- struct internal_sunos_core *hdr; /* core file header */
- asection *data_section;
- asection *stack_section;
- asection *reg_section;
- asection *reg2_section;
- };
-
- static bfd_target *
- DEFUN(sunos4_core_file_p,(abfd),
- bfd *abfd)
- {
- unsigned char longbuf[4]; /* Raw bytes of various header fields */
- int core_size;
- int core_mag;
- struct internal_sunos_core *core;
- char *extcore;
- char *rawptr;
- struct mergem {
- struct suncoredata suncoredata;
- struct internal_sunos_core internal_sunos_core;
- char external_core[1];
- } *mergem;
-
- bfd_error = system_call_error;
-
- 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, 0L, false) < 0) return 0;
-
- mergem = (struct mergem *)bfd_zalloc (abfd, core_size + sizeof (struct mergem));
- if (mergem == NULL) {
- bfd_error = no_memory;
- return 0;
- }
-
- extcore = mergem->external_core;
-
- if ((bfd_read ((PTR) extcore, 1, core_size, abfd)) != core_size) {
- bfd_error = system_call_error;
- 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;
- 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
- them */
- core_stacksec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
- if (core_stacksec (abfd) == NULL) {
- loser:
- bfd_error = no_memory;
- bfd_release (abfd, rawptr);
- 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;
- core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
- core_regsec (abfd)->flags = SEC_ALLOC;
- core_reg2sec (abfd)->flags = SEC_ALLOC;
-
- core_stacksec (abfd)->size = core->c_ssize;
- core_datasec (abfd)->size = core->c_dsize;
- core_regsec (abfd)->size = core->c_regs_size;
- core_reg2sec (abfd)->size = core->fp_stuff_size;
-
- 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;
- /* 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)->c_cmdname;
- }
-
- static int
- DEFUN(sunos4_core_file_failing_signal,(abfd),
- bfd *abfd)
- {
- return core_hdr (abfd)->c_signo;
- }
-
- static boolean
- DEFUN(sunos4_core_file_matches_executable_p, (core_bfd, exec_bfd),
- bfd *core_bfd AND
- bfd *exec_bfd)
- {
- if (core_bfd->xvec != exec_bfd->xvec) {
- bfd_error = system_call_error;
- return false;
- }
-
- return (bcmp ((char *)&core_hdr (core_bfd), (char*) &exec_hdr (exec_bfd),
- sizeof (struct internal_exec)) == 0) ? true : false;
- }
-
- /* 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_slurp_bsd_armap
- #define aout_32_slurp_extended_name_table bfd_true
- #define aout_32_write_armap bsd_write_armap
- #define aout_32_truncate_arname bfd_bsd_truncate_arname
- #define aout_32_machine_type sunos_machine_type
-
- #define aout_32_core_file_failing_command sunos4_core_file_failing_command
- #define aout_32_core_file_failing_signal sunos4_core_file_failing_signal
- #define aout_32_core_file_matches_executable_p sunos4_core_file_matches_executable_p
-
-
- #define aout_64_openr_next_archived_file bfd_generic_openr_next_archived_file
- #define aout_64_generic_stat_arch_elt bfd_generic_stat_arch_elt
- #define aout_64_slurp_armap bfd_slurp_bsd_armap
- #define aout_64_slurp_extended_name_table bfd_true
- #define aout_64_write_armap bsd_write_armap
- #define aout_64_truncate_arname bfd_bsd_truncate_arname
- #define aout_64_machine_type sunos_machine_type
-
- #define aout_64_core_file_failing_command sunos4_core_file_failing_command
- #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 */
- 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))
- };
-