diff options
author | Daniel Berlin <dberlin@dberlin.org> | 2001-07-06 19:17:05 +0000 |
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committer | Daniel Berlin <dberlin@dberlin.org> | 2001-07-06 19:17:05 +0000 |
commit | efae50153d4577bd05fc34b76c47bdca79982233 (patch) | |
tree | ebfdde719009a58b2f719cb06926eb6aab787aba /bfd/riscix.c | |
parent | d30f071864b3938dd9d197547c65b33980a243f8 (diff) | |
download | gdb-dberlin-typesystem-branch.tar.gz |
Typesystem work initial import.dberlin-typesystem-branchcvs/dberlin-typesystem-branch
Note that this currently isn't building, i'm in the middle of converting make_function_type/lookup_function_type
Diffstat (limited to 'bfd/riscix.c')
-rw-r--r-- | bfd/riscix.c | 638 |
1 files changed, 0 insertions, 638 deletions
diff --git a/bfd/riscix.c b/bfd/riscix.c deleted file mode 100644 index f5a9ec9bdcb..00000000000 --- a/bfd/riscix.c +++ /dev/null @@ -1,638 +0,0 @@ -/* BFD back-end for RISC iX (Acorn, arm) binaries. - Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2001 - Free Software Foundation, Inc. - Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org) - -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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* RISC iX overloads the MAGIC field to indicate more than just the usual - [ZNO]MAGIC values. Also included are squeezing information and - shared library usage. */ - -/* The following come from the man page. */ -#define SHLIBLEN 60 - -#define MF_IMPURE 00200 -#define MF_SQUEEZED 01000 -#define MF_USES_SL 02000 -#define MF_IS_SL 04000 - -/* Common combinations. */ -#define IMAGIC (MF_IMPURE|ZMAGIC) /* Demand load (impure text) */ -#define SPOMAGIC (MF_USES_SL|OMAGIC) /* OMAGIC with large header */ - /* -- may contain a ref to a */ - /* shared lib required by the */ - /* object. */ -#define SLOMAGIC (MF_IS_SL|OMAGIC) /* A reference to a shared library */ - /* The text portion of the object */ - /* contains "overflow text" from */ - /* the shared library to be linked */ - /* in with an object */ -#define QMAGIC (MF_SQUEEZED|ZMAGIC) /* Sqeezed demand paged. */ - /* NOTE: This interpretation of */ - /* QMAGIC seems to be at variance */ - /* With that used on other */ - /* architectures. */ -#define SPZMAGIC (MF_USES_SL|ZMAGIC) /* program which uses sl */ -#define SPQMAGIC (MF_USES_SL|QMAGIC) /* sqeezed ditto */ -#define SLZMAGIC (MF_IS_SL|ZMAGIC) /* shared lib part of prog */ -#define SLPZMAGIC (MF_USES_SL|SLZMAGIC) /* sl which uses another */ - -#define N_SHARED_LIB(x) ((x).a_info & MF_USES_SL) - -/* Only a pure OMAGIC file has the minimal header */ -#define N_TXTOFF(x) \ - ((x).a_info == OMAGIC ? 32 \ - : (N_MAGIC(x) == ZMAGIC) ? TARGET_PAGE_SIZE \ - : 999) - -#define N_TXTADDR(x) \ - (N_MAGIC(x) != ZMAGIC ? 0 /* object file or NMAGIC */ \ - /* Programs with shared libs are loaded at the first page after all the \ - text segments of the shared library programs. Without looking this \ - up we can't know exactly what the address will be. A reasonable guess \ - is that a_entry will be in the first page of the executable. */ \ - : N_SHARED_LIB(x) ? ((x).a_entry & ~(TARGET_PAGE_SIZE - 1)) \ - : TEXT_START_ADDR) - -#define N_SYMOFF(x) \ - (N_TXTOFF (x) + (x).a_text + (x).a_data + (x).a_trsize + (x).a_drsize) - -#define N_STROFF(x) (N_SYMOFF (x) + (x).a_syms) - -#define TEXT_START_ADDR 32768 -#define TARGET_PAGE_SIZE 32768 -#define SEGMENT_SIZE TARGET_PAGE_SIZE -#define DEFAULT_ARCH bfd_arch_arm - -#define MY(OP) CAT(riscix_,OP) -#define TARGETNAME "a.out-riscix" -#define N_BADMAG(x) ((((x).a_info & ~007200) != ZMAGIC) && \ - (((x).a_info & ~006000) != OMAGIC) && \ - ((x).a_info != NMAGIC)) -#define N_MAGIC(x) ((x).a_info & ~07200) - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -#define WRITE_HEADERS(abfd, execp) \ - { \ - bfd_size_type text_size; /* dummy vars */ \ - file_ptr text_end; \ - if (adata(abfd).magic == undecided_magic) \ - NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end); \ - \ - execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; \ - execp->a_entry = bfd_get_start_address (abfd); \ - \ - execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * \ - obj_reloc_entry_size (abfd)); \ - execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * \ - obj_reloc_entry_size (abfd)); \ - NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes); \ - \ - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) return false; \ - if (bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) \ - != EXEC_BYTES_SIZE) \ - return false; \ - /* Now write out reloc info, followed by syms and strings */ \ - \ - if (bfd_get_outsymbols (abfd) != (asymbol **) NULL \ - && bfd_get_symcount (abfd) != 0) \ - { \ - if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0) \ - return false; \ - \ - if (! NAME(aout,write_syms) (abfd)) return false; \ - \ - if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0) \ - return false; \ - \ - if (! riscix_squirt_out_relocs (abfd, obj_textsec (abfd))) \ - return false; \ - if (bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0) \ - return false; \ - \ - if (!NAME(aout,squirt_out_relocs) (abfd, obj_datasec (abfd))) \ - return false; \ - } \ - } - -#include "libaout.h" -#include "aout/aout64.h" - -static bfd_reloc_status_type -riscix_fix_pcrel_26_done PARAMS ((bfd *, arelent *, asymbol *, PTR, - asection *, bfd *, char **)); - -static bfd_reloc_status_type -riscix_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR, - asection *, bfd *, char **)); - -static reloc_howto_type riscix_std_reloc_howto[] = { - /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ - HOWTO( 0, 0, 0, 8, false, 0, complain_overflow_bitfield,0,"8", true, 0x000000ff,0x000000ff, false), - HOWTO( 1, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"16", true, 0x0000ffff,0x0000ffff, false), - HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"32", true, 0xffffffff,0xffffffff, false), - HOWTO( 3, 2, 3, 26, true, 0, complain_overflow_signed, riscix_fix_pcrel_26 , "ARM26", true, 0x00ffffff,0x00ffffff, false), - HOWTO( 4, 0, 0, 8, true, 0, complain_overflow_signed, 0,"DISP8", true, 0x000000ff,0x000000ff, true), - HOWTO( 5, 0, 1, 16, true, 0, complain_overflow_signed, 0,"DISP16", true, 0x0000ffff,0x0000ffff, true), - HOWTO( 6, 0, 2, 32, true, 0, complain_overflow_signed, 0,"DISP32", true, 0xffffffff,0xffffffff, true), - HOWTO( 7, 2, 3, 26, false, 0, complain_overflow_signed, riscix_fix_pcrel_26_done, "ARM26D",true,0x00ffffff,0x00ffffff, false), - EMPTY_HOWTO (-1), - HOWTO( 9, 0, -1, 16, false, 0, complain_overflow_bitfield,0,"NEG16", true, 0x0000ffff,0x0000ffff, false), - HOWTO( 10, 0, -2, 32, false, 0, complain_overflow_bitfield,0,"NEG32", true, 0xffffffff,0xffffffff, false) -}; - -#define RISCIX_TABLE_SIZE \ - (sizeof (riscix_std_reloc_howto) / sizeof (reloc_howto_type)) - -static bfd_reloc_status_type -riscix_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry ATTRIBUTE_UNUSED; - asymbol *symbol ATTRIBUTE_UNUSED; - PTR data ATTRIBUTE_UNUSED; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd ATTRIBUTE_UNUSED; - char **error_message ATTRIBUTE_UNUSED; -{ - /* This is dead simple at present. */ - return bfd_reloc_ok; -} - -static bfd_reloc_status_type -riscix_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_vma relocation; - bfd_size_type addr = reloc_entry->address; - long target = bfd_get_32 (abfd, (bfd_byte *) data + addr); - bfd_reloc_status_type flag = bfd_reloc_ok; - - /* If this is an undefined symbol, return error */ - if (symbol->section == &bfd_und_section - && (symbol->flags & BSF_WEAK) == 0) - return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined; - - /* If the sections are different, and we are doing a partial relocation, - just ignore it for now. */ - if (symbol->section->name != input_section->name - && output_bfd != (bfd *)NULL) - return bfd_reloc_continue; - - relocation = (target & 0x00ffffff) << 2; - relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */ - relocation += symbol->value; - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - relocation -= input_section->output_section->vma; - relocation -= input_section->output_offset; - relocation -= addr; - if (relocation & 3) - return bfd_reloc_overflow; - - /* Check for overflow */ - if (relocation & 0x02000000) - { - if ((relocation & ~ (bfd_vma) 0x03ffffff) != ~ (bfd_vma) 0x03ffffff) - flag = bfd_reloc_overflow; - } - else if (relocation & ~0x03ffffff) - flag = bfd_reloc_overflow; - - target &= ~0x00ffffff; - target |= (relocation >> 2) & 0x00ffffff; - bfd_put_32 (abfd, target, (bfd_byte *) data + addr); - - /* Now the ARM magic... Change the reloc type so that it is marked as done. - Strictly this is only necessary if we are doing a partial relocation. */ - reloc_entry->howto = &riscix_std_reloc_howto[7]; - - return flag; -} - -reloc_howto_type * -riscix_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ -#define ASTD(i,j) case i: return &riscix_std_reloc_howto[j] - if (code == BFD_RELOC_CTOR) - switch (bfd_get_arch_info (abfd)->bits_per_address) - { - case 32: - code = BFD_RELOC_32; - break; - default: return (reloc_howto_type *) NULL; - } - - switch (code) - { - ASTD (BFD_RELOC_16, 1); - ASTD (BFD_RELOC_32, 2); - ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3); - ASTD (BFD_RELOC_8_PCREL, 4); - ASTD (BFD_RELOC_16_PCREL, 5); - ASTD (BFD_RELOC_32_PCREL, 6); - default: return (reloc_howto_type *) NULL; - } -} - -#define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols -#define MY_final_link_callback should_not_be_used -#define MY_bfd_final_link _bfd_generic_final_link - -#define MY_bfd_reloc_type_lookup riscix_reloc_type_lookup -#define MY_canonicalize_reloc riscix_canonicalize_reloc -#define MY_object_p riscix_object_p - -static const bfd_target *riscix_callback PARAMS ((bfd *)); - -void -riscix_swap_std_reloc_out (abfd, g, natptr) - bfd *abfd; - arelent *g; - struct reloc_std_external *natptr; -{ - int r_index; - asymbol *sym = *(g->sym_ptr_ptr); - int r_extern; - int r_length; - int r_pcrel; - int r_neg = 0; /* Negative relocs use the BASEREL bit. */ - asection *output_section = sym->section->output_section; - - PUT_WORD(abfd, g->address, natptr->r_address); - - r_length = g->howto->size ; /* Size as a power of two */ - if (r_length < 0) - { - r_length = -r_length; - r_neg = 1; - } - - r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */ - - /* For RISC iX, in pc-relative relocs the r_pcrel bit means that the - relocation has been done already (Only for the 26-bit one I think)???!!! - */ - - if (r_length == 3) - r_pcrel = r_pcrel ? 0 : 1; - -#if 0 - /* For a standard reloc, the addend is in the object file. */ - r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma; -#endif - - /* name was clobbered by aout_write_syms to be symbol index */ - - /* If this relocation is relative to a symbol then set the - r_index to the symbols index, and the r_extern bit. - - Absolute symbols can come in in two ways, either as an offset - from the abs section, or as a symbol which has an abs value. - check for that here - */ - - if (bfd_is_com_section (output_section) - || output_section == &bfd_abs_section - || output_section == &bfd_und_section) - { - if (bfd_abs_section.symbol == sym) - { - /* Whoops, looked like an abs symbol, but is really an offset - from the abs section */ - r_index = 0; - r_extern = 0; - } - else - { - /* Fill in symbol */ - r_extern = 1; - r_index = (*g->sym_ptr_ptr)->udata.i; - } - } - else - { - /* Just an ordinary section */ - r_extern = 0; - r_index = output_section->target_index; - } - - /* now the fun stuff */ - if (bfd_header_big_endian (abfd)) - { - natptr->r_index[0] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[2] = r_index; - natptr->r_type[0] = - ( (r_extern ? RELOC_STD_BITS_EXTERN_BIG: 0) - | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG: 0) - | (r_neg ? RELOC_STD_BITS_BASEREL_BIG: 0) - | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); - } - else - { - natptr->r_index[2] = r_index >> 16; - natptr->r_index[1] = r_index >> 8; - natptr->r_index[0] = r_index; - natptr->r_type[0] = - ( (r_extern ? RELOC_STD_BITS_EXTERN_LITTLE: 0) - | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE: 0) - | (r_neg ? RELOC_STD_BITS_BASEREL_LITTLE: 0) - | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); - } -} - -boolean -riscix_squirt_out_relocs (abfd, section) - bfd *abfd; - asection *section; -{ - arelent **generic; - unsigned char *native, *natptr; - size_t each_size; - - unsigned int count = section->reloc_count; - size_t natsize; - - if (count == 0) return true; - - each_size = obj_reloc_entry_size (abfd); - natsize = each_size * count; - native = (unsigned char *) bfd_zalloc (abfd, natsize); - if (!native) - return false; - - generic = section->orelocation; - - for (natptr = native; - count != 0; - --count, natptr += each_size, ++generic) - riscix_swap_std_reloc_out (abfd, *generic, - (struct reloc_std_external *) natptr); - - if ( bfd_write ((PTR) native, 1, natsize, abfd) != natsize) - { - bfd_release(abfd, native); - return false; - } - - bfd_release (abfd, native); - return true; -} - -/* - * This is just like the standard aoutx.h version but we need to do our - * own mapping of external reloc type values to howto entries. - */ -long -MY(canonicalize_reloc) (abfd, section, relptr, symbols) - bfd *abfd; - sec_ptr section; - arelent **relptr; - asymbol **symbols; -{ - arelent *tblptr = section->relocation; - unsigned int count, c; - extern reloc_howto_type NAME(aout,std_howto_table)[]; - - /* If we have already read in the relocation table, return the values. */ - if (section->flags & SEC_CONSTRUCTOR) { - arelent_chain *chain = section->constructor_chain; - - for (count = 0; count < section->reloc_count; count++) { - *relptr++ = &chain->relent; - chain = chain->next; - } - *relptr = 0; - return section->reloc_count; - } - if (tblptr && section->reloc_count) { - for (count = 0; count++ < section->reloc_count;) - *relptr++ = tblptr++; - *relptr = 0; - return section->reloc_count; - } - - if (!NAME(aout,slurp_reloc_table) (abfd, section, symbols)) - return -1; - tblptr = section->relocation; - - /* fix up howto entries */ - for (count = 0; count++ < section->reloc_count;) - { - c = tblptr->howto - NAME(aout,std_howto_table); - BFD_ASSERT (c < RISCIX_TABLE_SIZE); - tblptr->howto = &riscix_std_reloc_howto[c]; - - *relptr++ = tblptr++; - } - *relptr = 0; - return section->reloc_count; -} - -/* This is the same as NAME(aout,some_aout_object_p), but has different - expansions of the macro definitions. */ - -const bfd_target * -riscix_some_aout_object_p (abfd, execp, callback_to_real_object_p) - bfd *abfd; - struct internal_exec *execp; - const bfd_target *(*callback_to_real_object_p) PARAMS ((bfd *)); -{ - struct aout_data_struct *rawptr, *oldrawptr; - const bfd_target *result; - - rawptr = ((struct aout_data_struct *) - bfd_zalloc (abfd, sizeof (struct aout_data_struct ))); - - if (rawptr == NULL) - return 0; - - oldrawptr = abfd->tdata.aout_data; - abfd->tdata.aout_data = rawptr; - - /* Copy the contents of the old tdata struct. - In particular, we want the subformat, since for hpux it was set in - hp300hpux.c:swap_exec_header_in and will be used in - hp300hpux.c:callback. */ - if (oldrawptr != NULL) - *abfd->tdata.aout_data = *oldrawptr; - - abfd->tdata.aout_data->a.hdr = &rawptr->e; - *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec - struct */ - execp = abfd->tdata.aout_data->a.hdr; - - /* Set the file flags */ - abfd->flags = BFD_NO_FLAGS; - if (execp->a_drsize || execp->a_trsize) - abfd->flags |= HAS_RELOC; - /* Setting of EXEC_P has been deferred to the bottom of this function */ - if (execp->a_syms) - abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; - if (N_DYNAMIC(*execp)) - abfd->flags |= DYNAMIC; - - if ((execp->a_info & MF_SQUEEZED) != 0) /* Squeezed files aren't supported - (yet)! */ - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - else if ((execp->a_info & MF_IS_SL) != 0) /* Nor are shared libraries */ - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - else if (N_MAGIC (*execp) == ZMAGIC) - { - abfd->flags |= D_PAGED | WP_TEXT; - adata (abfd).magic = z_magic; - } - else if (N_MAGIC (*execp) == NMAGIC) - { - abfd->flags |= WP_TEXT; - adata (abfd).magic = n_magic; - } - else if (N_MAGIC (*execp) == OMAGIC) - adata (abfd).magic = o_magic; - else - { - /* Should have been checked with N_BADMAG before this routine - was called. */ - abort (); - } - - bfd_get_start_address (abfd) = execp->a_entry; - - obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; - bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist); - - /* The default relocation entry size is that of traditional V7 Unix. */ - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - - /* The default symbol entry size is that of traditional Unix. */ - obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; - - obj_aout_external_syms (abfd) = NULL; - obj_aout_external_strings (abfd) = NULL; - obj_aout_sym_hashes (abfd) = NULL; - - if (! NAME(aout,make_sections) (abfd)) - return NULL; - - obj_datasec (abfd)->_raw_size = execp->a_data; - obj_bsssec (abfd)->_raw_size = execp->a_bss; - - obj_textsec (abfd)->flags = - (execp->a_trsize != 0 - ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) - : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); - obj_datasec (abfd)->flags = - (execp->a_drsize != 0 - ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) - : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); - obj_bsssec (abfd)->flags = SEC_ALLOC; - - result = (*callback_to_real_object_p) (abfd); - -#if defined(MACH) || defined(STAT_FOR_EXEC) - /* The original heuristic doesn't work in some important cases. The - * a.out file has no information about the text start address. For - * files (like kernels) linked to non-standard addresses (ld -Ttext - * nnn) the entry point may not be between the default text start - * (obj_textsec(abfd)->vma) and (obj_textsec(abfd)->vma) + text size - * This is not just a mach issue. Many kernels are loaded at non - * standard addresses. - */ - { - struct stat stat_buf; - if (abfd->iostream != NULL - && (abfd->flags & BFD_IN_MEMORY) == 0 - && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0) - && ((stat_buf.st_mode & 0111) != 0)) - abfd->flags |= EXEC_P; - } -#else /* ! MACH */ - /* Now that the segment addresses have been worked out, take a better - guess at whether the file is executable. If the entry point - is within the text segment, assume it is. (This makes files - executable even if their entry point address is 0, as long as - their text starts at zero.) - - At some point we should probably break down and stat the file and - declare it executable if (one of) its 'x' bits are on... */ - if ((execp->a_entry >= obj_textsec(abfd)->vma) && - (execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size)) - abfd->flags |= EXEC_P; -#endif /* MACH */ - if (result) - { - } - else - { - free (rawptr); - abfd->tdata.aout_data = oldrawptr; - } - return result; -} - -static const bfd_target * -MY(object_p) (abfd) - bfd *abfd; -{ - struct external_exec exec_bytes; /* Raw exec header from file */ - struct internal_exec exec; /* Cleaned-up exec header */ - const bfd_target *target; - - if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) - != EXEC_BYTES_SIZE) { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return 0; - } - - exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); - - if (N_BADMAG (exec)) return 0; -#ifdef MACHTYPE_OK - if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) return 0; -#endif - - NAME(aout,swap_exec_header_in) (abfd, &exec_bytes, &exec); - - target = riscix_some_aout_object_p (abfd, &exec, MY(callback)); - - return target; -} - -#include "aout-target.h" |