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9783e04a64
check the result for NULL. Most set bfd_error to no_memory and return in that case; a few are harder to fix, and are marked with "FIXME <return type>". * elf32-hppa.c (hppa_elf_build_arg_reloc_stub hppa_elf_build_long_branch_stub): Check bfd_make_empty_symbol return. * linker.c (_bfd_generic_link_output_symbols _bfd_generic_link_write_global_symbol): Ditto * section.c (bfd_make_section_anyway): Ditto. * tekhex.c (find_chunk tekhex_mkobject): Check bfd_alloc. (first_phase): Ditto. FIXME void (tekhex_make_empty_symbol): Check bfd_zalloc. * sunos.c (sunos_read_dynamic_info): Check bfd_zalloc. (MY(read_dynamic_symbols) MY(read_dynamic_relocs)): Check bfd_alloc. * stringhash.c (_bfd_stringtab_hash_newfunc): Check bfd_hash_allocate. * srec.c: Indent. (fillup_symbols): Check bfd_alloc. FIXME void (srec_mkobject srec_get_section_contents srec_set_section_contents): Check bfd_alloc. (srec_make_empty_symbol): Check bfd_zalloc. * som.c (hppa_som_gen_reloc_type): Check bfd_alloc_by_size_t. (make_unique_section): Check bfd_alloc. (som_new_section_hook): Check bfd_zalloc. (bfd_som_attach_aux_hdr): Ditto. FIXME void * rs6000-core.c (rs6000coff_core_p): Check bfd_zalloc. * osf-core.c (osf_core_make_empty_symbol): Check bfd_zalloc. (osf_core_core_file_p): Check bfd_alloc. * oasys.c (oasys_slurp_symbol_table oasys_archive_p oasys_mkobject oasys_object_p oasys_new_section_hook oasys_set_section_contents): Check bfd_alloc. (oasys_slurp_section_data): Check bfd_zalloc and bfd_alloc. (oasys_make_empty_symbol): Check bfd_zalloc. * nlmcode.h (nlm_make_empty_symbol): Check bfd_zalloc. (nlm_slurp_symbol_table): Check bfd_zalloc and bfd_alloc. * nlm32-sparc.c (nlm_sparc_read_import): Check bfd_alloc. * nlm32-i386.c (nlm_i386_read_import): Check bfd_alloc. * nlm32-alpha.c (nlm_alpha_read_import): Check bfd_alloc. * linker.c (_bfd_link_hash_newfunc (generic_link_hash_newfunc (archive_hash_newfunc (_bfd_generic_link_add_one_symbol): Check bfd_hash_allocate. (_bfd_generic_final_link (_bfd_generic_link_output_symbols (default_indirect_link_order): Check bfd_alloc. (bfd_new_link_order): Check bfd_alloc_by_size_t. * irix-core.c (irix_core_make_empty_symbol): Check bfd_zalloc. * ieee.c: Indent. (read_id get_symbol get_section_entry ieee_archive_p ieee_object_p ieee_slurp_section_data ieee_new_section_hook): Check bfd_alloc. (do_one): Check bfd_alloc. Return a boolean. (ieee_slurp_section_data): Check it. (init_for_output): Check bfd_alloc. Return a boolean. (ieee_set_section_contents): Check it. (do_with_relocs): Check bfd_alloc. Return a boolean. (ieee_bfd_debug_info_accumulate): Ditto. FIXME void. (ieee_mkobject): Check bfd_zalloc. (ieee_make_empty_symbol): Check bfd_zmalloc. * hpux-core.c (hpux_core_make_empty_symbol): Check bfd_zalloc. * hppabsd-core.c (hppabsd_core_make_empty_symbol): Check bfd_zalloc. (hppabsd_core_core_file_p): Check bfd_zalloc. * hp300hpux.c (MY(slurp_symbol_table)): Check bfd_alloc. * elfcode.h (elf_new_section_hook): Check bfd_alloc. (bfd_section_from_phdr): Ditto. (write_relocs): Ditto. FIXME void (elf_map_symbols assign_section_numbers map_program_segments): Ditto. Return a boolean. (swap_out_syms): Ditto. Check elf_map_symbols. (elf_slurp_symbol_table): Check bfd_zalloc. (elf_slurp_reloca_table): Check bfd_alloc. (elf_slurp_reloc_table): Ditto. (elf_compute_section_file_positions): Check assign_section_numbers. (assign_file_positions_except_relocs): Return a boolean. Check map_program_segments. (elf_compute_section_file_positions): Check it. * elf32-mips.c (mips_elf_final_link): Check bfd_alloc. * elf32-hppa.c (hppa_elf_stub_branch_reloc): Check bfd_zmalloc and realloc. (hppa_elf_stub_reloc): Ditto. (hppa_elf_build_arg_reloc_stub): Check bfd_zalloc. (hppa_elf_build_long_branch_stub): Ditto. (elf32_hppa_backend_symbol_table_processing): Ditto. * ecoff.c (ecoff_set_symbol_info): Check bfd_alloc. Return a boolean. (ecoff_slurp_symbol_table): Check it. (ecoff_slurp_armap): Check bfd_alloc. (ecoff_write_armap): Check bfd_zalloc. (ecoff_link_hash_newfunc): Check bfd_hash_allocate and _bfd_link_hash_newfunc. (ecoff_link_add_externals): Check bfd_alloc. * ctor.c (bfd_constructor_entry): Check bfd_alloc. * coffgen.c (coff_real_object_p): Check bfd_alloc. (coff_renumber_symbols): Check bfd_alloc_by_size_t. Return a boolean. (coff_write_symbol): Check bfd_alloc. FIXME int (coff_write_linenumbers): Check bfd_alloc. Return a boolean. (coff_section_symbol): Check bfd_alloc_by_size_t. (coff_get_normalized_symtab): Check bfd_alloc. (coff_bfd_make_debug_symbol): Check bfd_zalloc. * libcoff-in.h: Change decls of coff_renumber_symbols, coff_write_linenumbers. * libcoff.h: Rebuilt. * coffcode.h (coff_write_object_contents): Check coff_renumber_symbols, coff_write_linenumbers. * coffcode.h: Indent. (coff_add_missing_symbols): Check bfd_alloc_by_size_t. Return a boolean. (coff_write_object_contents): Check it. * coff-alpha.c (alpha_relocate_section): Check bfd_alloc. * coff-mips.c (mips_relocate_section): Ditto. * archive.c (bfd_slurp_bsd_armap_f2): Check bfd_alloc value. (do_slurp_bsd_armap): Ditto. (compute_and_write_armap): Check bfd_realloc value. * aoutx.h (translate_from_native_sym_flags): Check bfd_alloc return value. Return boolean value. (NAME(aout,make_empty_symbol)): Check bfd_zalloc return value. (NAME(aout,slurp_symbol_table)): Check bf_alloc and bfd_zalloc return value. (add_to_stringtab): Ditto. FIXME void (aout_link_hash_newfunc): Check bfd_hash_allocate return value. (aout_link_add_symbols): Check bfd_alloc value. (translate_symbol_table): Check translate_from_native_sym_flags. * hp300hpux.c (MY(slurp_symbol_table)): Ditto. * aoutx.h (aout_link_hash_newfunc): Check _bfd_link_hash_newfunc. * opncls.c (bfd_zalloc bfd_realloc): Check result of bfd_alloc. * opncls.c (obstack_chunk_alloc): Define as malloc, not bfd_xmalloc_by_size_t. (_bfd_new_bfd): Check obstack_begin for 0 return. * ieee.c (obstack_chunk_alloc): Define as malloc, not bfd_xmalloc_by_size_t. (ieee_archive_p): Check obstack_begin for 0 return and obstack_finish for NULL return. * hash.c (obstack_chunk_alloc): Define as malloc, not bfd_xmalloc_by_size_t. (bfd_hash_table_init_n): Check obstack_begin for 0 return and obstack_finish for NULL return. (bfd_hash_lookup): Check obstack_alloc for NULL return. * ecofflink.c (obstack_chunk_alloc): Define as malloc, not bfd_xmalloc_by_size_t. bfd_ecoff_debug_accumulate bfd_ecoff_debug_accumulate_other): Check obstack_alloc. (add_file_shuffle add_memory_shuffle): Check obstack_alloc for NULL return. Return boolean, not void. (bfd_ecoff_debug_init): Check obstack_begin for 0 return. (bfd_ecoff_debug_accumulate): Check add_file_shuffle and add_memory_shuffle return. (string_hash_newfunc): Check bfd_hash_allocate and bfd_hash_newfunc. (bfd_ecoff_debug_accumulate): Check bfd_alloc. (ecoff_add_string): Check add_memory_shuffle return. * libbfd-in.h (xmalloc, bfd_xmalloc, bfd_xmalloc_by_size_t): Remove decls. * libbfd.h: Rebuilt.
850 lines
27 KiB
C
850 lines
27 KiB
C
/* BFD backend for hp-ux 9000/300
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Copyright (C) 1990, 1991, 1994 Free Software Foundation, Inc.
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Written by Glenn Engel.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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hpux native ------------> | |
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| hp300hpux bfd | ----------> hpux w/gnu ext
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hpux w/gnu extension ----> | |
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Support for the 9000/[34]00 has several limitations.
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1. Shared libraries are not supported.
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2. The output format from this bfd is not usable by native tools.
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The primary motivation for writing this bfd was to allow use of
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gdb and gcc for host based debugging and not to mimic the hp-ux tools
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in every detail. This leads to a significant simplification of the
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code and a leap in performance. The decision to not output hp native
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compatible objects was further strengthened by the fact that the richness
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of the gcc compiled objects could not be represented without loss of
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information. For example, while the hp format supports the concept of
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secondary symbols, it does not support indirect symbols. Another
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reason is to maintain backwards compatibility with older implementations
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of gcc on hpux which used 'hpxt' to translate .a and .o files into a
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format which could be readily understood by the gnu linker and gdb.
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This allows reading hp secondary symbols and converting them into
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indirect symbols but the reverse it not always possible.
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Another example of differences is that the hp format stores symbol offsets
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in the object code while the gnu utilities use a field in the
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relocation record for this. To support the hp native format, the object
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code would need to be patched with the offsets when producing .o files.
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The basic technique taken in this implementation is to #include the code
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from aoutx.h and aout-target.h with appropriate #defines to override
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code where a unique implementation is needed:
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{
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#define a bunch of stuff
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#include <aoutx.h>
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implement a bunch of functions
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#include "aout-target.h"
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}
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The hp symbol table is a bit different than other a.out targets. Instead
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of having an array of nlist items and an array of strings, hp's format
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has them mixed together in one structure. In addition, the strings are
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not null terminated. It looks something like this:
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nlist element 1
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string1
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nlist element 2
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string2
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...
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The whole symbol table is read as one chunk and then we march thru it
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and convert it to canonical form. As we march thru the table, we copy
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the nlist data into the internal form and we compact the strings and null
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terminate them, using storage from the already allocated symbol table:
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string1
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null
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string2
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null
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*/
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/* @@ Is this really so different from normal a.out that it needs to include
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aoutx.h? We should go through this file sometime and see what can be made
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more dependent on aout32.o and what might need to be broken off and accessed
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through the backend_data field. Or, maybe we really do need such a
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completely separate implementation. I don't have time to investigate this
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much further right now. [raeburn:19930428.2124EST] */
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/* @@ Also, note that there wind up being two versions of some routines, with
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different names, only one of which actually gets used. For example:
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slurp_symbol_table
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swap_std_reloc_in
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slurp_reloc_table
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get_symtab
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get_symtab_upper_bound
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canonicalize_reloc
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mkobject
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This should also be fixed. */
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#define ARCH 32
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#define TARGETNAME "a.out-hp300hpux"
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#define MY(OP) CAT(hp300hpux_,OP)
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#define external_exec hp300hpux_exec_bytes
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#define external_nlist hp300hpux_nlist_bytes
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#include "aout/hp300hpux.h"
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/* define these so we can compile unused routines in aoutx.h */
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#define e_strx e_shlib
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#define e_other e_length
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#define e_desc e_almod
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#define AR_PAD_CHAR '/'
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#define TARGET_IS_BIG_ENDIAN_P
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#define DEFAULT_ARCH bfd_arch_m68k
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#define MY_get_section_contents aout_32_get_section_contents
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#define MY_close_and_cleanup aout_32_close_and_cleanup
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#define MY_slurp_armap bfd_slurp_bsd_armap_f2
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/***********************************************/
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/* provide overrides for routines in this file */
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/***********************************************/
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/* these don't use MY because that causes problems within JUMP_TABLE
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(CAT winds up being expanded recursively, which ANSI C compilers
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will not do). */
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#define MY_get_symtab hp300hpux_get_symtab
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#define MY_get_symtab_upper_bound hp300hpux_get_symtab_upper_bound
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#define MY_canonicalize_reloc hp300hpux_canonicalize_reloc
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#define MY_write_object_contents hp300hpux_write_object_contents
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#define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
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#define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols
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#define MY_bfd_final_link _bfd_generic_final_link
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#define hp300hpux_write_syms aout_32_write_syms
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#define MY_callback MY(callback)
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#define NAME_swap_exec_header_in NAME(hp300hpux_32_,swap_exec_header_in)
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#define HP_SYMTYPE_UNDEFINED 0x00
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#define HP_SYMTYPE_ABSOLUTE 0x01
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#define HP_SYMTYPE_TEXT 0x02
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#define HP_SYMTYPE_DATA 0x03
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#define HP_SYMTYPE_BSS 0x04
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#define HP_SYMTYPE_COMMON 0x05
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#define HP_SYMTYPE_TYPE 0x0F
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#define HP_SYMTYPE_FILENAME 0x1F
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#define HP_SYMTYPE_ALIGN 0x10
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#define HP_SYMTYPE_EXTERNAL 0x20
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#define HP_SECONDARY_SYMBOL 0x40
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/* RELOCATION DEFINITIONS */
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#define HP_RSEGMENT_TEXT 0x00
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#define HP_RSEGMENT_DATA 0x01
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#define HP_RSEGMENT_BSS 0x02
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#define HP_RSEGMENT_EXTERNAL 0x03
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#define HP_RSEGMENT_PCREL 0x04
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#define HP_RSEGMENT_RDLT 0x05
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#define HP_RSEGMENT_RPLT 0x06
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#define HP_RSEGMENT_NOOP 0x3F
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#define HP_RLENGTH_BYTE 0x00
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#define HP_RLENGTH_WORD 0x01
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#define HP_RLENGTH_LONG 0x02
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#define HP_RLENGTH_ALIGN 0x03
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#define NAME(x,y) CAT3(hp300hpux,_32_,y)
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#define ARCH_SIZE 32
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#include "aoutx.h"
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/* Since the hpux symbol table has nlist elements interspersed with
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strings and we need to insert som strings for secondary symbols, we
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give ourselves a little extra padding up front to account for
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this. Note that for each non-secondary symbol we process, we gain
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9 bytes of space for the discarded nlist element (one byte used for
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null). SYM_EXTRA_BYTES is the extra space. */
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#define SYM_EXTRA_BYTES 1024
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/* Set parameters about this a.out file that are machine-dependent.
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This routine is called from some_aout_object_p just before it returns. */
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static bfd_target *
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DEFUN(MY(callback),(abfd),
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bfd *abfd)
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{
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struct internal_exec *execp = exec_hdr (abfd);
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/* Calculate the file positions of the parts of a newly read aout header */
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obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp);
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/* The virtual memory addresses of the sections */
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obj_textsec (abfd)->vma = N_TXTADDR(*execp);
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obj_datasec (abfd)->vma = N_DATADDR(*execp);
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obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
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/* The file offsets of the sections */
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obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
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obj_datasec (abfd)->filepos = N_DATOFF (*execp);
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/* The file offsets of the relocation info */
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obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
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obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
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/* The file offsets of the string table and symbol table. */
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obj_sym_filepos (abfd) = N_SYMOFF (*execp);
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obj_str_filepos (abfd) = N_STROFF (*execp);
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/* Determine the architecture and machine type of the object file. */
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#ifdef SET_ARCH_MACH
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SET_ARCH_MACH(abfd, *execp);
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#else
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bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0);
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#endif
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if (obj_aout_subformat(abfd) == gnu_encap_format)
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{
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/* The file offsets of the relocation info */
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obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF(*execp);
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obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF(*execp);
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/* The file offsets of the string table and symbol table. */
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obj_sym_filepos (abfd) = N_GNU_SYMOFF(*execp);
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obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms);
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abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
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bfd_get_symcount (abfd) = execp->a_syms / 12;
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obj_symbol_entry_size (abfd) = 12;
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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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}
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return abfd->xvec;
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}
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extern boolean aout_32_write_syms PARAMS ((bfd *abfd));
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static boolean
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DEFUN(MY(write_object_contents),(abfd),
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bfd *abfd)
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{
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struct external_exec exec_bytes;
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struct internal_exec *execp = exec_hdr (abfd);
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bfd_size_type text_size; /* dummy vars */
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file_ptr text_end;
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memset (&exec_bytes, 0, sizeof (exec_bytes));
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#if CHOOSE_RELOC_SIZE
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CHOOSE_RELOC_SIZE(abfd);
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#else
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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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#endif
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if (adata(abfd).magic == undecided_magic)
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NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
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execp->a_syms = 0;
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execp->a_entry = bfd_get_start_address (abfd);
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execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
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obj_reloc_entry_size (abfd));
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execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
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obj_reloc_entry_size (abfd));
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N_SET_MACHTYPE(*execp, 0xc);
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N_SET_FLAGS (*execp, 0x2);
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NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);
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/* update fields not covered by default swap_exec_header_out */
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/* this is really the sym table size but we store it in drelocs */
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bfd_h_put_32 (abfd, bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs);
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bfd_seek (abfd, 0L, false);
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bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
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/* Write out the symbols, and then the relocs. We must write out
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the symbols first so that we know the symbol indices. */
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if (bfd_get_symcount (abfd) != 0)
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{
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/* Skip the relocs to where we want to put the symbols. */
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if (bfd_seek (abfd, (file_ptr) N_DRELOFF (*execp) + execp->a_drsize,
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SEEK_SET) != 0)
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return false;
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}
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if (! MY(write_syms) (abfd))
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return false;
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if (bfd_get_symcount (abfd) != 0)
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{
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bfd_seek (abfd, (long)(N_TRELOFF(*execp)), false);
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if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false;
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bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false);
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if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false;
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}
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return true;
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}
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/* convert the hp symbol type to be the same as aout64.h usage so we */
|
|
/* can piggyback routines in aoutx.h. */
|
|
|
|
static void
|
|
DEFUN(convert_sym_type,(sym_pointer, cache_ptr, abfd),
|
|
struct external_nlist *sym_pointer AND
|
|
aout_symbol_type *cache_ptr AND
|
|
bfd *abfd)
|
|
{
|
|
int name_type;
|
|
int new_type;
|
|
|
|
name_type = (cache_ptr->type);
|
|
new_type = 0;
|
|
|
|
if ((name_type & HP_SYMTYPE_ALIGN) != 0)
|
|
{
|
|
/* iou_error ("aligned symbol encountered: %s", name);*/
|
|
name_type = 0;
|
|
}
|
|
|
|
if (name_type == HP_SYMTYPE_FILENAME)
|
|
new_type = N_FN;
|
|
else
|
|
{
|
|
switch (name_type & HP_SYMTYPE_TYPE)
|
|
{
|
|
case HP_SYMTYPE_UNDEFINED:
|
|
new_type = N_UNDF;
|
|
break;
|
|
|
|
case HP_SYMTYPE_ABSOLUTE:
|
|
new_type = N_ABS;
|
|
break;
|
|
|
|
case HP_SYMTYPE_TEXT:
|
|
new_type = N_TEXT;
|
|
break;
|
|
|
|
case HP_SYMTYPE_DATA:
|
|
new_type = N_DATA;
|
|
break;
|
|
|
|
case HP_SYMTYPE_BSS:
|
|
new_type = N_BSS;
|
|
break;
|
|
|
|
case HP_SYMTYPE_COMMON:
|
|
new_type = N_COMM;
|
|
break;
|
|
|
|
default:
|
|
fprintf (stderr, "unknown symbol type encountered: %x", name_type);
|
|
}
|
|
if (name_type & HP_SYMTYPE_EXTERNAL)
|
|
new_type |= N_EXT;
|
|
|
|
if (name_type & HP_SECONDARY_SYMBOL)
|
|
new_type = (new_type & ~N_TYPE) | N_INDR;
|
|
}
|
|
cache_ptr->type = new_type;
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
DESCRIPTION
|
|
Swaps the information in an executable header taken from a raw
|
|
byte stream memory image, into the internal exec_header
|
|
structure.
|
|
*/
|
|
|
|
void
|
|
DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp),
|
|
bfd *abfd AND
|
|
struct external_exec *raw_bytes AND
|
|
struct internal_exec *execp)
|
|
{
|
|
struct external_exec *bytes = (struct external_exec *)raw_bytes;
|
|
|
|
/* The internal_exec structure has some fields that are unused in this
|
|
configuration (IE for i960), so ensure that all such uninitialized
|
|
fields are zero'd out. There are places where two of these structs
|
|
are memcmp'd, and thus the contents do matter. */
|
|
memset (execp, 0, sizeof (struct internal_exec));
|
|
/* Now fill in fields in the execp, from the bytes in the raw data. */
|
|
execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
|
|
execp->a_text = GET_WORD (abfd, bytes->e_text);
|
|
execp->a_data = GET_WORD (abfd, bytes->e_data);
|
|
execp->a_bss = GET_WORD (abfd, bytes->e_bss);
|
|
execp->a_syms = GET_WORD (abfd, bytes->e_syms);
|
|
execp->a_entry = GET_WORD (abfd, bytes->e_entry);
|
|
execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
|
|
execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
|
|
|
|
/***************************************************************/
|
|
/* check the header to see if it was generated by a bfd output */
|
|
/* this is detected rather bizarely by requiring a bunch of */
|
|
/* header fields to be zero and an old unused field (now used) */
|
|
/* to be set. */
|
|
/***************************************************************/
|
|
do
|
|
{
|
|
long syms;
|
|
struct aout_data_struct *rawptr;
|
|
if (bfd_h_get_32 (abfd, bytes->e_passize) != 0) break;
|
|
if (bfd_h_get_32 (abfd, bytes->e_syms) != 0) break;
|
|
if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0) break;
|
|
|
|
syms = bfd_h_get_32 (abfd, bytes->e_drelocs);
|
|
if (syms == 0) break;
|
|
|
|
/* OK, we've passed the test as best as we can determine */
|
|
execp->a_syms = syms;
|
|
|
|
/* allocate storage for where we will store this result */
|
|
rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (*rawptr));
|
|
|
|
if (rawptr == NULL) {
|
|
bfd_error = no_memory;
|
|
return;
|
|
}
|
|
abfd->tdata.aout_data = rawptr;
|
|
obj_aout_subformat(abfd) = gnu_encap_format;
|
|
} while (0);
|
|
}
|
|
|
|
|
|
/* The hp symbol table is a bit different than other a.out targets. Instead
|
|
of having an array of nlist items and an array of strings, hp's format
|
|
has them mixed together in one structure. In addition, the strings are
|
|
not null terminated. It looks something like this:
|
|
|
|
nlist element 1
|
|
string1
|
|
nlist element 2
|
|
string2
|
|
...
|
|
|
|
The whole symbol table is read as one chunk and then we march thru it
|
|
and convert it to canonical form. As we march thru the table, we copy
|
|
the nlist data into the internal form and we compact the strings and null
|
|
terminate them, using storage from the already allocated symbol table:
|
|
|
|
string1
|
|
null
|
|
string2
|
|
null
|
|
...
|
|
*/
|
|
|
|
boolean
|
|
DEFUN(MY(slurp_symbol_table),(abfd),
|
|
bfd *abfd)
|
|
{
|
|
bfd_size_type symbol_bytes;
|
|
struct external_nlist *syms;
|
|
struct external_nlist *sym_pointer;
|
|
struct external_nlist *sym_end;
|
|
char *strings;
|
|
aout_symbol_type *cached;
|
|
unsigned num_syms = 0;
|
|
unsigned num_secondary = 0;
|
|
|
|
/* If there's no work to be done, don't do any */
|
|
if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true;
|
|
symbol_bytes = exec_hdr(abfd)->a_syms;
|
|
if (symbol_bytes == 0) {
|
|
bfd_error = no_symbols;
|
|
return false;
|
|
}
|
|
|
|
strings = (char *) bfd_alloc(abfd,
|
|
symbol_bytes + SYM_EXTRA_BYTES);
|
|
if (!strings)
|
|
{
|
|
bfd_error = no_memory;
|
|
return false;
|
|
}
|
|
syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES);
|
|
bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET);
|
|
if (bfd_read ((PTR)syms, symbol_bytes, 1, abfd) != symbol_bytes)
|
|
{
|
|
bfd_release (abfd, syms);
|
|
return false;
|
|
}
|
|
|
|
|
|
sym_end = (struct external_nlist *) (((char *)syms) + symbol_bytes);
|
|
|
|
/* first, march thru the table and figure out how many symbols there are */
|
|
for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++)
|
|
{
|
|
if (bfd_get_8(abfd, sym_pointer->e_type) & HP_SECONDARY_SYMBOL)
|
|
num_secondary++;
|
|
/* skip over the embedded symbol. */
|
|
sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
|
|
sym_pointer->e_length[0]);
|
|
}
|
|
|
|
/* now that we know the symbol count, update the bfd header */
|
|
bfd_get_symcount (abfd) = num_syms+num_secondary;
|
|
|
|
cached = (aout_symbol_type *)
|
|
bfd_zalloc(abfd, (bfd_size_type)(bfd_get_symcount (abfd) *
|
|
sizeof(aout_symbol_type)));
|
|
if (!cached)
|
|
{
|
|
bfd_error = no_memory;
|
|
return false;
|
|
}
|
|
|
|
/* as we march thru the hp symbol table, convert it into a list of
|
|
null terminated strings to hold the symbol names. Make sure any
|
|
assignment to the strings pointer is done after we're thru using
|
|
the nlist so we don't overwrite anything important. */
|
|
num_secondary = 0;
|
|
|
|
/* OK, now walk the new symtable, cacheing symbol properties */
|
|
{
|
|
aout_symbol_type *cache_ptr = cached;
|
|
aout_symbol_type cache_save;
|
|
/* Run through table and copy values */
|
|
for (sym_pointer = syms, cache_ptr = cached;
|
|
sym_pointer < sym_end; sym_pointer++, cache_ptr++)
|
|
{
|
|
unsigned int length;
|
|
cache_ptr->symbol.the_bfd = abfd;
|
|
cache_ptr->symbol.value = GET_SWORD(abfd, sym_pointer->e_value);
|
|
cache_ptr->desc = bfd_get_16(abfd, sym_pointer->e_almod);
|
|
cache_ptr->type = bfd_get_8(abfd, sym_pointer->e_type);
|
|
cache_ptr->symbol.udata = 0;
|
|
length = bfd_get_8(abfd, sym_pointer->e_length);
|
|
cache_ptr->other = length; /* other not used, save length here */
|
|
|
|
cache_save = *cache_ptr;
|
|
convert_sym_type(sym_pointer, cache_ptr, abfd);
|
|
if (!translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd))
|
|
return false;
|
|
|
|
/********************************************************/
|
|
/* for hpux, the 'lenght' value indicates the length of */
|
|
/* the symbol name which follows the nlist entry. */
|
|
/********************************************************/
|
|
if (length)
|
|
{
|
|
/**************************************************************/
|
|
/* the hp string is not null terminated so we create a new one*/
|
|
/* by copying the string to overlap the just vacated nlist */
|
|
/* structure before it in memory. */
|
|
/**************************************************************/
|
|
cache_ptr->symbol.name = strings;
|
|
memcpy(strings, sym_pointer+1, length);
|
|
strings[length] = '\0';
|
|
strings += length + 1;
|
|
}
|
|
else
|
|
cache_ptr->symbol.name = (char *)NULL;
|
|
|
|
/**********************************************************/
|
|
/* this is a bit of a kludge, but a secondary hp symbol */
|
|
/* gets translated into a gnu indirect symbol. When this */
|
|
/* happens, we need to create a "dummy" record to which */
|
|
/* we can point the indirect symbol to. */
|
|
/**********************************************************/
|
|
if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT))
|
|
{
|
|
aout_symbol_type *cache_ptr2 = cached + num_syms+num_secondary;
|
|
|
|
num_secondary++;
|
|
|
|
/* aoutx.h assumes the "next" value is the indirect sym */
|
|
/* since we don't want to disturb the order by inserting */
|
|
/* a new symbol, we tack on the created secondary syms */
|
|
/* at the end. */
|
|
cache_ptr->symbol.value = (bfd_vma)(cache_ptr2);
|
|
*cache_ptr2 = cache_save;
|
|
cache_ptr2->symbol.name = strings;
|
|
memcpy(strings, cache_ptr->symbol.name, length);
|
|
strcpy(strings+length,":secondry"); /* 9 max chars + null */
|
|
strings += length+10;
|
|
cache_ptr2->type &= ~HP_SECONDARY_SYMBOL; /* clear secondary */
|
|
convert_sym_type(sym_pointer, cache_ptr2, abfd);
|
|
if (!translate_from_native_sym_flags (sym_pointer, cache_ptr2,
|
|
abfd))
|
|
return false;
|
|
}
|
|
|
|
/* skip over the embedded symbol. */
|
|
sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
|
|
length);
|
|
}
|
|
}
|
|
|
|
obj_aout_symbols (abfd) = cached;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
DEFUN(MY(swap_std_reloc_in), (abfd, bytes, cache_ptr, symbols),
|
|
bfd *abfd AND
|
|
struct hp300hpux_reloc *bytes AND
|
|
arelent *cache_ptr AND
|
|
asymbol **symbols)
|
|
{
|
|
int r_index;
|
|
int r_extern = 0;
|
|
unsigned int r_length;
|
|
int r_pcrel = 0;
|
|
struct aoutdata *su = &(abfd->tdata.aout_data->a);
|
|
|
|
cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
|
|
r_index = bfd_h_get_16(abfd, bytes->r_index);
|
|
|
|
switch (bytes->r_type[0])
|
|
{
|
|
case HP_RSEGMENT_TEXT:
|
|
r_index = N_TEXT;
|
|
break;
|
|
case HP_RSEGMENT_DATA:
|
|
r_index = N_DATA;
|
|
break;
|
|
case HP_RSEGMENT_BSS:
|
|
r_index = N_BSS;
|
|
break;
|
|
case HP_RSEGMENT_EXTERNAL:
|
|
r_extern = 1;
|
|
break;
|
|
case HP_RSEGMENT_PCREL:
|
|
r_extern = 1;
|
|
r_pcrel = 1;
|
|
break;
|
|
case HP_RSEGMENT_RDLT:
|
|
break;
|
|
case HP_RSEGMENT_RPLT:
|
|
break;
|
|
case HP_RSEGMENT_NOOP:
|
|
break;
|
|
default:
|
|
fprintf (stderr, "illegal relocation segment type: %x\n",
|
|
(bytes->r_type[0]));
|
|
}
|
|
|
|
switch (bytes->r_length[0])
|
|
{
|
|
case HP_RLENGTH_BYTE:
|
|
r_length = 0;
|
|
break;
|
|
case HP_RLENGTH_WORD:
|
|
r_length = 1;
|
|
break;
|
|
case HP_RLENGTH_LONG:
|
|
r_length = 2;
|
|
break;
|
|
default:
|
|
fprintf (stderr, "illegal relocation length: %x\n",bytes->r_length[0] );
|
|
r_length = 0;
|
|
}
|
|
|
|
cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel;
|
|
/* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */
|
|
|
|
/* This macro uses the r_index value computed above */
|
|
if (r_pcrel && r_extern)
|
|
{
|
|
/* The GNU linker assumes any offset from beginning of section */
|
|
/* is already incorporated into the image while the HP linker */
|
|
/* adds this in later. Add it in now... */
|
|
MOVE_ADDRESS( - cache_ptr->address);
|
|
}
|
|
else
|
|
{
|
|
MOVE_ADDRESS(0);
|
|
}
|
|
}
|
|
|
|
boolean
|
|
DEFUN(MY(slurp_reloc_table),(abfd, asect, symbols),
|
|
bfd *abfd AND
|
|
sec_ptr asect AND
|
|
asymbol **symbols)
|
|
{
|
|
unsigned int count;
|
|
bfd_size_type reloc_size;
|
|
PTR relocs;
|
|
arelent *reloc_cache;
|
|
size_t each_size;
|
|
struct hp300hpux_reloc *rptr;
|
|
unsigned int counter;
|
|
arelent *cache_ptr;
|
|
|
|
if (asect->relocation) return true;
|
|
|
|
if (asect->flags & SEC_CONSTRUCTOR) return true;
|
|
|
|
if (asect == obj_datasec (abfd)) {
|
|
reloc_size = exec_hdr(abfd)->a_drsize;
|
|
goto doit;
|
|
}
|
|
|
|
if (asect == obj_textsec (abfd)) {
|
|
reloc_size = exec_hdr(abfd)->a_trsize;
|
|
goto doit;
|
|
}
|
|
|
|
bfd_error = invalid_operation;
|
|
return false;
|
|
|
|
doit:
|
|
bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
|
|
each_size = obj_reloc_entry_size (abfd);
|
|
|
|
count = reloc_size / each_size;
|
|
|
|
|
|
reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof
|
|
(arelent)));
|
|
if (!reloc_cache) {
|
|
nomem:
|
|
bfd_error = no_memory;
|
|
return false;
|
|
}
|
|
|
|
relocs = (PTR) bfd_alloc (abfd, reloc_size);
|
|
if (!relocs) {
|
|
bfd_release (abfd, reloc_cache);
|
|
goto nomem;
|
|
}
|
|
|
|
if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) {
|
|
bfd_release (abfd, relocs);
|
|
bfd_release (abfd, reloc_cache);
|
|
bfd_error = system_call_error;
|
|
return false;
|
|
}
|
|
|
|
rptr = (struct hp300hpux_reloc*) relocs;
|
|
counter = 0;
|
|
cache_ptr = reloc_cache;
|
|
|
|
for (; counter < count; counter++, rptr++, cache_ptr++) {
|
|
MY(swap_std_reloc_in)(abfd, rptr, cache_ptr, symbols);
|
|
}
|
|
|
|
|
|
bfd_release (abfd,relocs);
|
|
asect->relocation = reloc_cache;
|
|
asect->reloc_count = count;
|
|
return true;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* The following functions are identical to functions in aoutx.h except */
|
|
/* they refer to MY(func) rather than NAME(aout,func) and they also */
|
|
/* call aout_32 versions if the input file was generated by gcc */
|
|
/************************************************************************/
|
|
|
|
unsigned int aout_32_get_symtab PARAMS((bfd *abfd, asymbol **location));
|
|
unsigned int aout_32_get_symtab_upper_bound PARAMS ((bfd *abfd));
|
|
|
|
unsigned int aout_32_canonicalize_reloc PARAMS((bfd *abfd, sec_ptr section,
|
|
arelent **relptr,
|
|
asymbol **symbols));
|
|
|
|
unsigned int
|
|
DEFUN(MY(get_symtab),(abfd, location),
|
|
bfd *abfd AND
|
|
asymbol **location)
|
|
{
|
|
unsigned int counter = 0;
|
|
aout_symbol_type *symbase;
|
|
|
|
if (obj_aout_subformat(abfd) == gnu_encap_format)
|
|
return aout_32_get_symtab(abfd,location);
|
|
|
|
if (!MY(slurp_symbol_table)(abfd)) return 0;
|
|
|
|
for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
|
|
*(location++) = (asymbol *)( symbase++);
|
|
*location++ =0;
|
|
return bfd_get_symcount (abfd);
|
|
}
|
|
|
|
unsigned int
|
|
DEFUN(MY(get_symtab_upper_bound),(abfd),
|
|
bfd *abfd)
|
|
{
|
|
if (obj_aout_subformat(abfd) == gnu_encap_format)
|
|
return aout_32_get_symtab_upper_bound(abfd);
|
|
if (!MY(slurp_symbol_table)(abfd)) return 0;
|
|
|
|
return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
|
|
}
|
|
|
|
|
|
|
|
|
|
unsigned int
|
|
DEFUN(MY(canonicalize_reloc),(abfd, section, relptr, symbols),
|
|
bfd *abfd AND
|
|
sec_ptr section AND
|
|
arelent **relptr AND
|
|
asymbol **symbols)
|
|
{
|
|
arelent *tblptr = section->relocation;
|
|
unsigned int count;
|
|
if (obj_aout_subformat(abfd) == gnu_encap_format)
|
|
return aout_32_canonicalize_reloc(abfd,section,relptr,symbols);
|
|
|
|
if (!(tblptr || MY(slurp_reloc_table)(abfd, section, symbols)))
|
|
return 0;
|
|
|
|
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;
|
|
}
|
|
}
|
|
else {
|
|
tblptr = section->relocation;
|
|
if (!tblptr) return 0;
|
|
|
|
for (count = 0; count++ < section->reloc_count;)
|
|
{
|
|
*relptr++ = tblptr++;
|
|
}
|
|
}
|
|
*relptr = 0;
|
|
|
|
return section->reloc_count;
|
|
}
|
|
|
|
|
|
#include "aout-target.h"
|