/* 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 #include "bfd.h" #include "libbfd.h" #include "libhppa.h" /* #include "aout/hppa.h" */ #include #include #include #include #include #include #ifndef hpux #include #include #include #include #define USRSTACK 0x68FF3000 #else #include /* After a.out.h */ #endif #include #include 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