diff options
Diffstat (limited to 'binutils-2.17/bfd/ppcboot.c')
| -rw-r--r-- | binutils-2.17/bfd/ppcboot.c | 546 |
1 files changed, 0 insertions, 546 deletions
diff --git a/binutils-2.17/bfd/ppcboot.c b/binutils-2.17/bfd/ppcboot.c deleted file mode 100644 index 7c8a4190..00000000 --- a/binutils-2.17/bfd/ppcboot.c +++ /dev/null @@ -1,546 +0,0 @@ -/* BFD back-end for PPCbug boot records. - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 - Free Software Foundation, Inc. - Written by Michael Meissner, Cygnus Support, <meissner@cygnus.com> - -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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ - -/* This is a BFD backend which may be used to write PowerPCBug boot objects. - It may only be used for output, not input. The intention is that this may - be used as an output format for objcopy in order to generate raw binary - data. - - This is very simple. The only complication is that the real data - will start at some address X, and in some cases we will not want to - include X zeroes just to get to that point. Since the start - address is not meaningful for this object file format, we use it - instead to indicate the number of zeroes to skip at the start of - the file. objcopy cooperates by specially setting the start - address to zero by default. */ - -#include "safe-ctype.h" -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -/* PPCbug location structure */ -typedef struct ppcboot_location { - bfd_byte ind; - bfd_byte head; - bfd_byte sector; - bfd_byte cylinder; -} ppcboot_location_t; - -/* PPCbug partition table layout */ -typedef struct ppcboot_partition { - ppcboot_location_t partition_begin; /* partition begin */ - ppcboot_location_t partition_end; /* partition end */ - bfd_byte sector_begin[4]; /* 32-bit start RBA (zero-based), little endian */ - bfd_byte sector_length[4]; /* 32-bit RBA count (one-based), little endian */ -} ppcboot_partition_t; - -/* PPCbug boot layout. */ -typedef struct ppcboot_hdr { - bfd_byte pc_compatibility[446]; /* x86 instruction field */ - ppcboot_partition_t partition[4]; /* partition information */ - bfd_byte signature[2]; /* 0x55 and 0xaa */ - bfd_byte entry_offset[4]; /* entry point offset, little endian */ - bfd_byte length[4]; /* load image length, little endian */ - bfd_byte flags; /* flag field */ - bfd_byte os_id; /* OS_ID */ - char partition_name[32]; /* partition name */ - bfd_byte reserved1[470]; /* reserved */ -} -#ifdef __GNUC__ - __attribute__ ((packed)) -#endif -ppcboot_hdr_t; - -/* Signature bytes for last 2 bytes of the 512 byte record */ -#define SIGNATURE0 0x55 -#define SIGNATURE1 0xaa - -/* PowerPC boot type */ -#define PPC_IND 0x41 - -/* Information needed for ppcboot header */ -typedef struct ppcboot_data { - ppcboot_hdr_t header; /* raw header */ - asection *sec; /* single section */ -} ppcboot_data_t; - -/* Any bfd we create by reading a ppcboot file has three symbols: - a start symbol, an end symbol, and an absolute length symbol. */ -#define PPCBOOT_SYMS 3 - -static bfd_boolean ppcboot_mkobject PARAMS ((bfd *)); -static const bfd_target *ppcboot_object_p PARAMS ((bfd *)); -static bfd_boolean ppcboot_set_arch_mach - PARAMS ((bfd *, enum bfd_architecture, unsigned long)); -static bfd_boolean ppcboot_get_section_contents - PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); -static long ppcboot_get_symtab_upper_bound PARAMS ((bfd *)); -static char *mangle_name PARAMS ((bfd *, char *)); -static long ppcboot_canonicalize_symtab PARAMS ((bfd *, asymbol **)); -static void ppcboot_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *)); -static bfd_boolean ppcboot_set_section_contents - PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type)); -static int ppcboot_sizeof_headers PARAMS ((bfd *, bfd_boolean)); -static bfd_boolean ppcboot_bfd_print_private_bfd_data PARAMS ((bfd *, PTR)); - -#define ppcboot_set_tdata(abfd, ptr) ((abfd)->tdata.any = (PTR) (ptr)) -#define ppcboot_get_tdata(abfd) ((ppcboot_data_t *) ((abfd)->tdata.any)) - -/* Create a ppcboot object. Invoked via bfd_set_format. */ - -static bfd_boolean -ppcboot_mkobject (abfd) - bfd *abfd; -{ - if (!ppcboot_get_tdata (abfd)) - { - bfd_size_type amt = sizeof (ppcboot_data_t); - ppcboot_set_tdata (abfd, bfd_zalloc (abfd, amt)); - } - - return TRUE; -} - - -/* Set the architecture to PowerPC */ -static bfd_boolean -ppcboot_set_arch_mach (abfd, arch, machine) - bfd *abfd; - enum bfd_architecture arch; - unsigned long machine; -{ - if (arch == bfd_arch_unknown) - arch = bfd_arch_powerpc; - - else if (arch != bfd_arch_powerpc) - return FALSE; - - return bfd_default_set_arch_mach (abfd, arch, machine); -} - - -/* Any file may be considered to be a ppcboot file, provided the target - was not defaulted. That is, it must be explicitly specified as - being ppcboot. */ - -static const bfd_target * -ppcboot_object_p (abfd) - bfd *abfd; -{ - struct stat statbuf; - asection *sec; - ppcboot_hdr_t hdr; - size_t i; - ppcboot_data_t *tdata; - - BFD_ASSERT (sizeof (ppcboot_hdr_t) == 1024); - - if (abfd->target_defaulted) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Find the file size. */ - if (bfd_stat (abfd, &statbuf) < 0) - { - bfd_set_error (bfd_error_system_call); - return NULL; - } - - if ((size_t) statbuf.st_size < sizeof (ppcboot_hdr_t)) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (bfd_bread ((PTR) &hdr, (bfd_size_type) sizeof (hdr), abfd) - != sizeof (hdr)) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - - return NULL; - } - - /* Now do some basic checks. */ - for (i = 0; i < sizeof (hdr.pc_compatibility); i++) - if (hdr.pc_compatibility[i]) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (hdr.signature[0] != SIGNATURE0 || hdr.signature[1] != SIGNATURE1) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (hdr.partition[0].partition_end.ind != PPC_IND) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - abfd->symcount = PPCBOOT_SYMS; - - /* One data section. */ - sec = bfd_make_section (abfd, ".data"); - if (sec == NULL) - return NULL; - sec->flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_CODE | SEC_HAS_CONTENTS; - sec->vma = 0; - sec->size = statbuf.st_size - sizeof (ppcboot_hdr_t); - sec->filepos = sizeof (ppcboot_hdr_t); - - ppcboot_mkobject (abfd); - tdata = ppcboot_get_tdata (abfd); - tdata->sec = sec; - memcpy ((PTR) &tdata->header, (PTR) &hdr, sizeof (ppcboot_hdr_t)); - - ppcboot_set_arch_mach (abfd, bfd_arch_powerpc, 0L); - return abfd->xvec; -} - -#define ppcboot_close_and_cleanup _bfd_generic_close_and_cleanup -#define ppcboot_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -#define ppcboot_new_section_hook _bfd_generic_new_section_hook - - -/* Get contents of the only section. */ - -static bfd_boolean -ppcboot_get_section_contents (abfd, section, location, offset, count) - bfd *abfd; - asection *section ATTRIBUTE_UNUSED; - PTR location; - file_ptr offset; - bfd_size_type count; -{ - if (bfd_seek (abfd, offset + (file_ptr) sizeof (ppcboot_hdr_t), SEEK_SET) != 0 - || bfd_bread (location, count, abfd) != count) - return FALSE; - return TRUE; -} - - -/* Return the amount of memory needed to read the symbol table. */ - -static long -ppcboot_get_symtab_upper_bound (abfd) - bfd *abfd ATTRIBUTE_UNUSED; -{ - return (PPCBOOT_SYMS + 1) * sizeof (asymbol *); -} - - -/* Create a symbol name based on the bfd's filename. */ - -static char * -mangle_name (abfd, suffix) - bfd *abfd; - char *suffix; -{ - bfd_size_type size; - char *buf; - char *p; - - size = (strlen (bfd_get_filename (abfd)) - + strlen (suffix) - + sizeof "_ppcboot__"); - - buf = (char *) bfd_alloc (abfd, size); - if (buf == NULL) - return ""; - - sprintf (buf, "_ppcboot_%s_%s", bfd_get_filename (abfd), suffix); - - /* Change any non-alphanumeric characters to underscores. */ - for (p = buf; *p; p++) - if (! ISALNUM (*p)) - *p = '_'; - - return buf; -} - - -/* Return the symbol table. */ - -static long -ppcboot_canonicalize_symtab (abfd, alocation) - bfd *abfd; - asymbol **alocation; -{ - asection *sec = ppcboot_get_tdata (abfd)->sec; - asymbol *syms; - unsigned int i; - bfd_size_type amt = PPCBOOT_SYMS * sizeof (asymbol); - - syms = (asymbol *) bfd_alloc (abfd, amt); - if (syms == NULL) - return FALSE; - - /* Start symbol. */ - syms[0].the_bfd = abfd; - syms[0].name = mangle_name (abfd, "start"); - syms[0].value = 0; - syms[0].flags = BSF_GLOBAL; - syms[0].section = sec; - syms[0].udata.p = NULL; - - /* End symbol. */ - syms[1].the_bfd = abfd; - syms[1].name = mangle_name (abfd, "end"); - syms[1].value = sec->size; - syms[1].flags = BSF_GLOBAL; - syms[1].section = sec; - syms[1].udata.p = NULL; - - /* Size symbol. */ - syms[2].the_bfd = abfd; - syms[2].name = mangle_name (abfd, "size"); - syms[2].value = sec->size; - syms[2].flags = BSF_GLOBAL; - syms[2].section = bfd_abs_section_ptr; - syms[2].udata.p = NULL; - - for (i = 0; i < PPCBOOT_SYMS; i++) - *alocation++ = syms++; - *alocation = NULL; - - return PPCBOOT_SYMS; -} - -#define ppcboot_make_empty_symbol _bfd_generic_make_empty_symbol -#define ppcboot_print_symbol _bfd_nosymbols_print_symbol - -/* Get information about a symbol. */ - -static void -ppcboot_get_symbol_info (ignore_abfd, symbol, ret) - bfd *ignore_abfd ATTRIBUTE_UNUSED; - asymbol *symbol; - symbol_info *ret; -{ - bfd_symbol_info (symbol, ret); -} - -#define ppcboot_bfd_is_target_special_symbol \ - ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) -#define ppcboot_bfd_is_local_label_name bfd_generic_is_local_label_name -#define ppcboot_get_lineno _bfd_nosymbols_get_lineno -#define ppcboot_find_nearest_line _bfd_nosymbols_find_nearest_line -#define ppcboot_find_inliner_info _bfd_nosymbols_find_inliner_info -#define ppcboot_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol -#define ppcboot_read_minisymbols _bfd_generic_read_minisymbols -#define ppcboot_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol - -#define ppcboot_get_reloc_upper_bound \ - ((long (*) PARAMS ((bfd *, asection *))) bfd_0l) -#define ppcboot_canonicalize_reloc \ - ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l) -#define ppcboot_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup - -/* Write section contents of a ppcboot file. */ - -static bfd_boolean -ppcboot_set_section_contents (abfd, sec, data, offset, size) - bfd *abfd; - asection *sec; - const PTR data; - file_ptr offset; - bfd_size_type size; -{ - if (! abfd->output_has_begun) - { - bfd_vma low; - asection *s; - - /* The lowest section VMA sets the virtual address of the start - of the file. We use the set the file position of all the - sections. */ - low = abfd->sections->vma; - for (s = abfd->sections->next; s != NULL; s = s->next) - if (s->vma < low) - low = s->vma; - - for (s = abfd->sections; s != NULL; s = s->next) - s->filepos = s->vma - low; - - abfd->output_has_begun = TRUE; - } - - return _bfd_generic_set_section_contents (abfd, sec, data, offset, size); -} - - -static int -ppcboot_sizeof_headers (abfd, exec) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_boolean exec ATTRIBUTE_UNUSED; -{ - return sizeof (ppcboot_hdr_t); -} - - -/* Print out the program headers. */ - -static bfd_boolean -ppcboot_bfd_print_private_bfd_data (abfd, farg) - bfd *abfd; - PTR farg; -{ - FILE *f = (FILE *)farg; - ppcboot_data_t *tdata = ppcboot_get_tdata (abfd); - long entry_offset = bfd_getl_signed_32 ((PTR) tdata->header.entry_offset); - long length = bfd_getl_signed_32 ((PTR) tdata->header.length); - int i; - - fprintf (f, _("\nppcboot header:\n")); - fprintf (f, _("Entry offset = 0x%.8lx (%ld)\n"), entry_offset, entry_offset); - fprintf (f, _("Length = 0x%.8lx (%ld)\n"), length, length); - - if (tdata->header.flags) - fprintf (f, _("Flag field = 0x%.2x\n"), tdata->header.flags); - - if (tdata->header.os_id) - fprintf (f, "OS_ID = 0x%.2x\n", tdata->header.os_id); - - if (tdata->header.partition_name) - fprintf (f, _("Partition name = \"%s\"\n"), tdata->header.partition_name); - - for (i = 0; i < 4; i++) - { - long sector_begin = bfd_getl_signed_32 ((PTR) tdata->header.partition[i].sector_begin); - long sector_length = bfd_getl_signed_32 ((PTR) tdata->header.partition[i].sector_length); - - /* Skip all 0 entries */ - if (!tdata->header.partition[i].partition_begin.ind - && !tdata->header.partition[i].partition_begin.head - && !tdata->header.partition[i].partition_begin.sector - && !tdata->header.partition[i].partition_begin.cylinder - && !tdata->header.partition[i].partition_end.ind - && !tdata->header.partition[i].partition_end.head - && !tdata->header.partition[i].partition_end.sector - && !tdata->header.partition[i].partition_end.cylinder - && !sector_begin && !sector_length) - continue; - - fprintf (f, _("\nPartition[%d] start = { 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }\n"), i, - tdata->header.partition[i].partition_begin.ind, - tdata->header.partition[i].partition_begin.head, - tdata->header.partition[i].partition_begin.sector, - tdata->header.partition[i].partition_begin.cylinder); - - fprintf (f, _("Partition[%d] end = { 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }\n"), i, - tdata->header.partition[i].partition_end.ind, - tdata->header.partition[i].partition_end.head, - tdata->header.partition[i].partition_end.sector, - tdata->header.partition[i].partition_end.cylinder); - - fprintf (f, _("Partition[%d] sector = 0x%.8lx (%ld)\n"), i, sector_begin, sector_begin); - fprintf (f, _("Partition[%d] length = 0x%.8lx (%ld)\n"), i, sector_length, sector_length); - } - - fprintf (f, "\n"); - return TRUE; -} - - -#define ppcboot_bfd_get_relocated_section_contents \ - bfd_generic_get_relocated_section_contents -#define ppcboot_bfd_relax_section bfd_generic_relax_section -#define ppcboot_bfd_gc_sections bfd_generic_gc_sections -#define ppcboot_bfd_merge_sections bfd_generic_merge_sections -#define ppcboot_bfd_is_group_section bfd_generic_is_group_section -#define ppcboot_bfd_discard_group bfd_generic_discard_group -#define ppcboot_section_already_linked \ - _bfd_generic_section_already_linked -#define ppcboot_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define ppcboot_bfd_link_hash_table_free _bfd_generic_link_hash_table_free -#define ppcboot_bfd_link_add_symbols _bfd_generic_link_add_symbols -#define ppcboot_bfd_link_just_syms _bfd_generic_link_just_syms -#define ppcboot_bfd_final_link _bfd_generic_final_link -#define ppcboot_bfd_link_split_section _bfd_generic_link_split_section -#define ppcboot_get_section_contents_in_window \ - _bfd_generic_get_section_contents_in_window - -#define ppcboot_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data -#define ppcboot_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data -#define ppcboot_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data -#define ppcboot_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data -#define ppcboot_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data -#define ppcboot_bfd_set_private_flags _bfd_generic_bfd_set_private_flags -#define ppcboot_bfd_print_private_bfd_dat ppcboot_bfd_print_private_bfd_data - -const bfd_target ppcboot_vec = -{ - "ppcboot", /* name */ - bfd_target_unknown_flavour, /* flavour */ - BFD_ENDIAN_BIG, /* byteorder is big endian for code */ - BFD_ENDIAN_LITTLE, /* header_byteorder */ - EXEC_P, /* object_flags */ - (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA - | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */ - 0, /* symbol_leading_char */ - ' ', /* ar_pad_char */ - 16, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - { /* bfd_check_format */ - _bfd_dummy_target, - ppcboot_object_p, /* bfd_check_format */ - _bfd_dummy_target, - _bfd_dummy_target, - }, - { /* bfd_set_format */ - bfd_false, - ppcboot_mkobject, - bfd_false, - bfd_false, - }, - { /* bfd_write_contents */ - bfd_false, - bfd_true, - bfd_false, - bfd_false, - }, - - BFD_JUMP_TABLE_GENERIC (ppcboot), - BFD_JUMP_TABLE_COPY (ppcboot), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), - BFD_JUMP_TABLE_SYMBOLS (ppcboot), - BFD_JUMP_TABLE_RELOCS (ppcboot), - BFD_JUMP_TABLE_WRITE (ppcboot), - BFD_JUMP_TABLE_LINK (ppcboot), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - NULL -}; 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