diff options
Diffstat (limited to 'bfd/hppa.c')
| -rw-r--r-- | bfd/hppa.c | 639 |
1 files changed, 639 insertions, 0 deletions
diff --git a/bfd/hppa.c b/bfd/hppa.c new file mode 100644 index 0000000..e376e23 --- /dev/null +++ b/bfd/hppa.c @@ -0,0 +1,639 @@ +/* bfd back-end for HP PA-RISC SOM objects. + Copyright (C) 1990-1991 Free Software Foundation, Inc. + + Contributed by the Center for Software Science at the + University of Utah (pa-gdb-bugs@cs.utah.edu). + +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. */ + +#ifdef hp9000s800 + +#include <sysdep.h> +#include "bfd.h" +#include "libbfd.h" +#include "libhppa.h" + +/* #include "aout/hppa.h" */ + +#include <stdio.h> +#include <sys/types.h> +#include <sys/param.h> +#include <sys/dir.h> +#include <signal.h> +#include <machine/reg.h> +#ifndef hpux +#include <aout/hppa.h> +#include <machine/pcb.h> +#include <sys/time.h> +#include <hpux/hpux.h> +#define USRSTACK 0x68FF3000 +#else +#include <sys/user.h> /* After a.out.h */ +#endif +#include <sys/file.h> +#include <errno.h> + +struct container { + struct header f; + struct som_exec_auxhdr e; +}; + +#undef USIZE +#undef UPAGES + +#define USIZE 3 +#define UPAGES 7 + +void +fill_spaces(abfd, file_hdr, dbx_subspace, dbx_strings_subspace) + bfd *abfd; + struct header *file_hdr; + struct subspace_dictionary_record *dbx_subspace, *dbx_strings_subspace; +{ + char *space_strings = (char *) alloca (file_hdr->space_strings_size); + int i; + /* for millicode games. */ + struct space_dictionary_record space; + struct subspace_dictionary_record subspace; + int index; + /* indices of subspace entries for $TEXT$ and $GDB_DEBUG$ */ + int text_index = 0, gdb_debug_index = 0; + + /* initialize in case we don't find any dbx symbols. */ + dbx_subspace->subspace_length = dbx_strings_subspace->subspace_length = 0; + bfd_seek (abfd, file_hdr->space_strings_location, SEEK_SET); + if (bfd_read ((PTR) space_strings, 1, file_hdr->space_strings_size, abfd) + != file_hdr->space_strings_size) + { + bfd_error = wrong_format; /* space strings table corrupted. */ + return; + } + bfd_seek (abfd, file_hdr->space_location, SEEK_SET); + for (i = 0; i < file_hdr->space_total; i++) + { + bfd_read ((PTR) &space, 1, sizeof(space), abfd); + index = (file_hdr->subspace_location + + (space.subspace_index * sizeof(subspace))); + if (!strcmp (space_strings + space.name.n_strx, "$TEXT$")) + text_index = index; + else if (!strcmp (space_strings + space.name.n_strx, "$GDB_DEBUG$")) + gdb_debug_index = index; + } + /* search out the beginning and end if millicode */ + bfd_seek (abfd, text_index, SEEK_SET); + for (;;) + { + bfd_read ((PTR) &subspace, 1, sizeof(subspace), abfd); + if (!strcmp (space_strings + subspace.name.n_strx, "$MILLICODE$")) + { + millicode_start = subspace.subspace_start; + millicode_end = (millicode_start + subspace.subspace_length); + break; + } + } + /* read symbols subspace and strings subspace in possibly arbitrary + order. */ + bfd_seek (abfd, gdb_debug_index, SEEK_SET); + bfd_read ((PTR) &subspace, 1, sizeof(struct subspace_dictionary_record), + abfd); + if (!strcmp (space_strings + subspace.name.n_strx, "$GDB_STRINGS$")) + { + *dbx_strings_subspace = subspace; + bfd_read ((PTR) dbx_subspace, 1, + sizeof(struct subspace_dictionary_record), abfd); + } + else + { + *dbx_subspace = subspace; + bfd_read ((PTR) dbx_strings_subspace, 1, + sizeof(struct subspace_dictionary_record), abfd); + } +} + +bfd_target * +DEFUN(hppa_object_setup,(abfd, file_hdrp, aux_hdrp, dbx_subspace, + dbx_strings_subspace), + bfd *abfd AND + struct header *file_hdrp AND + struct som_exec_auxhdr *aux_hdrp AND + struct subspace_dictionary_record *dbx_subspace AND + struct subspace_dictionary_record *dbx_strings_subspace) +{ + struct container *rawptr; + struct header *f; + struct hppa_data_struct *rawptr1; + + rawptr = (struct container *) bfd_zalloc (abfd, sizeof (struct container)); + if (rawptr == NULL) { + bfd_error = no_memory; + return 0; + } + + rawptr1 = (struct hppa_data_struct *) bfd_zalloc (abfd, sizeof (struct hppa_data_struct)); + if (rawptr1 == NULL) { + bfd_error = no_memory; + return 0; + } + + abfd->tdata.hppa_data = rawptr1; + obj_file_hdr (abfd) = &rawptr->f; + obj_aux_hdr (abfd) = &rawptr->e; + *obj_file_hdr (abfd) = *file_hdrp; + *obj_aux_hdr (abfd) = *aux_hdrp; + + /* Set the file flags */ + abfd->flags = NO_FLAGS; + if (file_hdrp->entry_offset) + abfd->flags |= HAS_RELOC; + if (file_hdrp->symbol_total) + abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; + + bfd_get_start_address (abfd) = aux_hdrp->exec_entry; + + obj_hp_symbol_entry_size (abfd) = sizeof(struct symbol_dictionary_record); + obj_dbx_symbol_entry_size (abfd) = 12; + + obj_pa_symbols (abfd) = (hppa_symbol_type *)NULL; + obj_hp_sym_count (abfd) = file_hdrp->symbol_total; + obj_dbx_sym_count (abfd) = dbx_subspace->subspace_length / + obj_dbx_symbol_entry_size (abfd); + bfd_get_symcount (abfd) = obj_hp_sym_count (abfd) + obj_dbx_sym_count (abfd); + + bfd_default_set_arch_mach(abfd, bfd_arch_hppa, 0); + + /* create the sections. This is raunchy, but bfd_close wants to reclaim + them */ + obj_textsec (abfd) = (asection *)NULL; + obj_datasec (abfd) = (asection *)NULL; + obj_bsssec (abfd) = (asection *)NULL; + (void)bfd_make_section(abfd, ".text"); + (void)bfd_make_section(abfd, ".data"); + (void)bfd_make_section(abfd, ".bss"); + + abfd->sections = obj_textsec (abfd); + obj_textsec (abfd)->next = obj_datasec (abfd); + obj_datasec (abfd)->next = obj_bsssec (abfd); + + obj_datasec (abfd)->_raw_size = aux_hdrp->exec_dsize; + obj_bsssec (abfd)->_raw_size = aux_hdrp->exec_bsize; + obj_textsec (abfd)->_raw_size = aux_hdrp->exec_tsize; + + obj_textsec (abfd)->flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS); + obj_datasec (abfd)->flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS); + obj_bsssec (abfd)->flags = SEC_ALLOC; + + /* The virtual memory addresses of the sections */ + obj_datasec (abfd)->vma = aux_hdrp->exec_dmem; + obj_bsssec (abfd)->vma = aux_hdrp->exec_bfill; + obj_textsec (abfd)->vma = aux_hdrp->exec_tmem; + + /* The file offsets of the sections */ + obj_textsec (abfd)->filepos = aux_hdrp->exec_tfile; + obj_datasec (abfd)->filepos = aux_hdrp->exec_dfile; + + /* The file offsets of the relocation info */ + obj_textsec (abfd)->rel_filepos = 0; + obj_datasec (abfd)->rel_filepos = 0; + + /* The file offsets of the string table and symbol table. */ + obj_hp_sym_filepos (abfd) = file_hdrp->symbol_location; + obj_hp_str_filepos (abfd) = file_hdrp->symbol_strings_location; + obj_dbx_sym_filepos (abfd) = dbx_subspace->file_loc_init_value; + obj_dbx_str_filepos (abfd) = dbx_strings_subspace->file_loc_init_value; + obj_hp_stringtab_size (abfd) = file_hdrp->symbol_strings_size; + obj_dbx_stringtab_size (abfd) = dbx_strings_subspace->subspace_length; + + return abfd->xvec; +} + +bfd_target * +DEFUN(hppa_object_p,(abfd), + bfd *abfd) +{ + struct header file_hdr; + struct som_exec_auxhdr aux_hdr; + struct subspace_dictionary_record dbx_subspace; + struct subspace_dictionary_record dbx_strings_subspace; + + if (bfd_read ((PTR) &file_hdr, 1, FILE_HDR_SIZE, abfd) != FILE_HDR_SIZE) + { + bfd_error = wrong_format; + return 0; + } + if (bfd_read ((PTR) &aux_hdr, 1, AUX_HDR_SIZE, abfd) != AUX_HDR_SIZE) + { + bfd_error = wrong_format; + return 0; + } + + fill_spaces(abfd, &file_hdr, &dbx_subspace, &dbx_strings_subspace); + + return hppa_object_setup(abfd, &file_hdr, &aux_hdr, &dbx_subspace, &dbx_strings_subspace); +} + + +static boolean +DEFUN(hppa_mkobject,(abfd), + bfd *abfd) +{ + fprintf (stderr, "hppa_mkobject unimplemented\n"); + fflush (stderr); + abort (); + return (false); +} + +boolean +DEFUN(hppa_write_object_contents,(abfd), + bfd *abfd) +{ + fprintf (stderr, "hppa_write_object_contents unimplemented\n"); + fflush (stderr); + abort (); + return (false); +} + + + +unsigned int +DEFUN(hppa_get_symtab_upper_bound,(abfd), + bfd *abfd) +{ + fprintf (stderr, "hppa_get_symtab_upper_bound unimplemented\n"); + fflush (stderr); + abort (); + return (0); +} + +unsigned int +DEFUN(hppa_get_reloc_upper_bound,(abfd, asect), + bfd *abfd AND + sec_ptr asect) +{ + fprintf (stderr, "hppa_get_reloc_upper_bound unimplemented\n"); + fflush (stderr); + abort (); + return (0); +} + +unsigned int +DEFUN(hppa_canonicalize_reloc,(abfd, section, relptr, symbols), + bfd *abfd AND + sec_ptr section AND + arelent **relptr AND + asymbol **symbols) +{ + fprintf (stderr, "hppa_canonicalize_reloc unimplemented\n"); + fflush (stderr); + abort (); +} + +extern bfd_target hppa_vec; +unsigned int +DEFUN(hppa_get_symtab,(abfd, location), + bfd *abfd AND + asymbol **location) +{ + fprintf (stderr, "hppa_get_symtab unimplemented\n"); + fflush (stderr); + abort (); + return (0); +} + +asymbol * +DEFUN(hppa_make_empty_symbol,(abfd), + bfd *abfd) +{ + hppa_symbol_type *new = + (hppa_symbol_type *)bfd_zalloc (abfd, sizeof (hppa_symbol_type)); + new->symbol.the_bfd = abfd; + + return &new->symbol; +} + + +void +DEFUN(hppa_print_symbol,(ignore_abfd, afile, symbol, how), + bfd *ignore_abfd AND + PTR afile AND + asymbol *symbol AND + bfd_print_symbol_type how) +{ + fprintf (stderr, "hppa_print_symbol unimplemented\n"); + fflush (stderr); + abort (); +} + + + +boolean +DEFUN(hppa_new_section_hook,(abfd, newsect), + bfd *abfd AND + asection *newsect) +{ + /* align to double at least */ + newsect->alignment_power = 3; + + if (bfd_get_format (abfd) == bfd_object) { + if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) { + obj_textsec(abfd)= newsect; + return true; + } + + if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) { + obj_datasec(abfd) = newsect; + return true; + } + + if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { + obj_bsssec(abfd) = newsect; + return true; + } + } + + /* We allow more than three sections internally */ + return true; +} + + + + +boolean +DEFUN(hppa_set_section_contents,(abfd, section, location, offset, count), + bfd *abfd AND + sec_ptr section AND + PTR location AND + file_ptr offset AND + bfd_size_type count) +{ + fprintf (stderr, "hppa_set_section_contents unimplimented\n"); + fflush (stderr); + abort(); + return false; +} + + +boolean +DEFUN(hppa_set_arch_mach,(abfd, arch, machine), + bfd *abfd AND + enum bfd_architecture arch AND + unsigned long machine) +{ + fprintf (stderr, "hppa_set_arch_mach unimplemented\n"); + fflush (stderr); + /* Allow any architecture to be supported by the hppa backend */ + return bfd_default_set_arch_mach(abfd, arch, machine); +} + + +static boolean +DEFUN (hppa_find_nearest_line,(abfd, + section, + symbols, + offset, + filename_ptr, + functionname_ptr, + line_ptr), + bfd *abfd AND + asection *section AND + asymbol **symbols AND + bfd_vma offset AND + CONST char **filename_ptr AND + CONST char **functionname_ptr AND + unsigned int *line_ptr) +{ + fprintf (stderr, "hppa_find_nearest_line unimplemented\n"); + fflush (stderr); + abort (); + return (false); +} + +static int +DEFUN (hppa_sizeof_headers, (abfd, reloc), + bfd *abfd AND + boolean reloc) +{ + fprintf (stderr, "hppa_sizeof_headers unimplemented\n"); + fflush (stderr); + abort (); + return (0); +} + +#ifdef hpux +#define hppa_core_file_p _bfd_dummy_target +#else +bfd_target * +hppa_core_file_p (abfd) + bfd *abfd; +{ + int val; + struct hpuxuser u; + unsigned int reg_offset, fp_reg_offset; + /* This struct is just for allocating two things with one zalloc, so + they will be freed together, without violating alignment constraints. */ + struct core_user { + struct hppa_core_struct coredata; + struct hpuxuser u; + } *rawptr; + + val = bfd_read ((void *)&u, 1, sizeof u, abfd); + if (val != sizeof u) + return 0; /* Too small to be a core file */ + + /* Sanity check perhaps??? */ + if (u.u_dsize > 0x1000000) /* Remember, it's in pages... */ + return 0; + if (u.u_ssize > 0x1000000) + return 0; + /* 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 core_user *)bfd_zalloc (abfd, sizeof (struct core_user)); + if (rawptr == NULL) { + bfd_error = no_memory; + return 0; + } + + abfd->tdata.hppa_core_data = &rawptr->coredata; + core_upage (abfd) = &rawptr->u; + *core_upage (abfd) = u; /* Save that upage! */ + + /* 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) { +loser2: + 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 = NBPG * u.u_dsize; + core_stacksec (abfd)->_raw_size = NBPG * u.u_ssize; + core_regsec (abfd)->_raw_size = NBPG * UPAGES; /* Larger than sizeof struct u */ + + core_datasec (abfd)->vma = u.hpuxu_exdata.somexec.a_Dmem; + core_stacksec (abfd)->vma = USRSTACK; /* from sys/param */ + /* 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 - NBPG * USIZE; /* -u_ar0 */ + + core_datasec (abfd)->filepos = NBPG * UPAGES; + core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * 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; +} +#endif + +#ifdef hpux +#define hppa_core_file_failing_command (char *(*)())(bfd_nullvoidptr) +#else +char * +hppa_core_file_failing_command (abfd) + bfd *abfd; +{ +#ifndef NO_CORE_COMMAND + if (*core_upage (abfd)->u_comm) + return core_upage (abfd)->u_comm; + else +#endif + return 0; +} +#endif + +/* ARGSUSED */ +int +hppa_core_file_failing_signal (ignore_abfd) + bfd *ignore_abfd; +{ + return -1; /* FIXME, where is it? */ +} + +/* ARGSUSED */ +boolean +hppa_core_file_matches_executable_p (core_bfd, exec_bfd) + bfd *core_bfd, *exec_bfd; +{ + return true; /* FIXME, We have no way of telling at this point */ +} + +#define hppa_bfd_debug_info_start bfd_void +#define hppa_bfd_debug_info_end bfd_void +#define hppa_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void + + + +#define hppa_openr_next_archived_file bfd_generic_openr_next_archived_file +#define hppa_generic_stat_arch_elt bfd_generic_stat_arch_elt +#define hppa_slurp_armap bfd_false +#define hppa_slurp_extended_name_table _bfd_slurp_extended_name_table +#define hppa_truncate_arname (void (*)())bfd_nullvoidptr +#define hppa_write_armap 0 + +#define hppa_get_lineno (struct lineno_cache_entry *(*)())bfd_nullvoidptr +#define hppa_close_and_cleanup bfd_generic_close_and_cleanup +#define hppa_get_section_contents bfd_generic_get_section_contents + +#define hppa_bfd_get_relocated_section_contents \ + bfd_generic_get_relocated_section_contents +#define hppa_bfd_relax_section bfd_generic_relax_section + +/*SUPPRESS 460 */ +bfd_target hppa_vec = +{ + "hppa", /* name */ + bfd_target_hppa_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_CODE|SEC_DATA|SEC_ROM|SEC_HAS_CONTENTS + |SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ + ' ', /* ar_pad_char */ + 16, /* ar_max_namelen */ + 3, /* minimum alignment */ +_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, + hppa_object_p, /* bfd_check_format */ + bfd_generic_archive_p, + hppa_core_file_p, + }, + { + bfd_false, + hppa_mkobject, + _bfd_generic_mkarchive, + bfd_false + }, + { + bfd_false, + hppa_write_object_contents, + _bfd_write_archive_contents, + bfd_false, + }, + JUMP_TABLE(hppa) +}; + +#endif |