diff options
Diffstat (limited to 'binutils-2.25/bfd/riscix.c')
| -rw-r--r-- | binutils-2.25/bfd/riscix.c | 656 |
1 files changed, 656 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/riscix.c b/binutils-2.25/bfd/riscix.c new file mode 100644 index 00000000..db04df18 --- /dev/null +++ b/binutils-2.25/bfd/riscix.c @@ -0,0 +1,656 @@ +/* BFD back-end for RISC iX (Acorn, arm) binaries. + Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, + 2005, 2007, 2010, 2012 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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, 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. */ + +/* Demand load (impure text). */ +#define IMAGIC (MF_IMPURE | ZMAGIC) + +/* OMAGIC with large header. + May contain a ref to a shared lib required by the object. */ +#define SPOMAGIC (MF_USES_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 SLOMAGIC (MF_IS_SL | OMAGIC) + +/* Sqeezed demand paged. + NOTE: This interpretation of QMAGIC seems to be at variance + with that used on other architectures. */ +#define QMAGIC (MF_SQUEEZED | ZMAGIC) + +/* Program which uses sl. */ +#define SPZMAGIC (MF_USES_SL | ZMAGIC) + +/* Sqeezed ditto. */ +#define SPQMAGIC (MF_USES_SL | QMAGIC) + +/* Shared lib part of prog. */ +#define SLZMAGIC (MF_IS_SL | ZMAGIC) + +/* Sl which uses another. */ +#define SLPZMAGIC (MF_USES_SL | SLZMAGIC) + +#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 \ + ? (bfd_vma) 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 & ~(bfd_vma) (TARGET_PAGE_SIZE - 1)) \ + : (bfd_vma) 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 + +/* Do not "beautify" the CONCAT* macro args. Traditional C will not + remove whitespace added here, and thus will fail to concatenate + the tokens. */ +#define MY(OP) CONCAT2 (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 "sysdep.h" +#include "bfd.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 \ + || bfd_bwrite ((void *) & exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, \ + abfd) != EXEC_BYTES_SIZE) \ + return FALSE; \ + /* Now write out reloc info, followed by syms and strings. */ \ + \ + if (bfd_get_outsymbols (abfd) != 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 (bfd *abfd ATTRIBUTE_UNUSED, + arelent *reloc_entry ATTRIBUTE_UNUSED, + asymbol *symbol ATTRIBUTE_UNUSED, + void * 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 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); +static const bfd_target *riscix_callback (bfd *); + +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 (bfd *abfd, + arelent *reloc_entry, + asymbol *symbol, + void * 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 (bfd_is_und_section (symbol->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 != 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 & ~ (bfd_vma) 0x03ffffff) + flag = bfd_reloc_overflow; + + target &= ~0x00ffffff; + target |= (relocation >> 2) & 0x00ffffff; + bfd_put_32 (abfd, (bfd_vma) 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; +} + +static reloc_howto_type * +riscix_reloc_type_lookup (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_arch_bits_per_address (abfd)) + { + case 32: + code = BFD_RELOC_32; + break; + default: + return 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 NULL; + } +} + +static reloc_howto_type * +riscix_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < sizeof (riscix_std_reloc_howto) / sizeof (riscix_std_reloc_howto[0]); + i++) + if (riscix_std_reloc_howto[i].name != NULL + && strcasecmp (riscix_std_reloc_howto[i].name, r_name) == 0) + return &riscix_std_reloc_howto[i]; + + return 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_bfd_reloc_name_lookup riscix_reloc_name_lookup +#define MY_canonicalize_reloc riscix_canonicalize_reloc +#define MY_object_p riscix_object_p + +static void +riscix_swap_std_reloc_out (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; + + /* 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) + || bfd_is_abs_section (output_section) + || bfd_is_und_section (output_section)) + { + if (bfd_abs_section_ptr->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)); + } +} + +static bfd_boolean +riscix_squirt_out_relocs (bfd *abfd, asection *section) +{ + arelent **generic; + unsigned char *native, *natptr; + size_t each_size; + unsigned int count = section->reloc_count; + bfd_size_type natsize; + + if (count == 0) + return TRUE; + + each_size = obj_reloc_entry_size (abfd); + natsize = each_size; + natsize *= count; + native = 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_bwrite ((void *) native, 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. */ + +static long +MY (canonicalize_reloc) (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. */ + +static const bfd_target * +riscix_some_aout_object_p (bfd *abfd, + struct internal_exec *execp, + const bfd_target *(*callback_to_real_object_p) (bfd *)) +{ + struct aout_data_struct *rawptr, *oldrawptr; + const bfd_target *result; + bfd_size_type amt = sizeof (struct aout_data_struct); + + rawptr = bfd_zalloc (abfd, amt); + + if (rawptr == NULL) + return NULL; + + 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; + /* Copy in the internal_exec struct. */ + *(abfd->tdata.aout_data->a.hdr) = *execp; + 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; + + /* Squeezed files aren't supported (yet)! */ + if ((execp->a_info & MF_SQUEEZED) != 0) + { + 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) = 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)->size = execp->a_data; + obj_bsssec (abfd)->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)->size)) + abfd->flags |= EXEC_P; +#endif /* MACH */ + if (result == NULL) + { + free (rawptr); + abfd->tdata.aout_data = oldrawptr; + } + return result; +} + +static const bfd_target * +MY (object_p) (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_bread ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd) + != EXEC_BYTES_SIZE) + { + if (bfd_get_error () != bfd_error_system_call) + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + + exec.a_info = H_GET_32 (abfd, exec_bytes.e_info); + + if (N_BADMAG (exec)) + return NULL; + +#ifdef MACHTYPE_OK + if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) + return NULL; +#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" |