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sfurman |
/* BFD backend for hp-ux 9000/300
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Copyright 1990, 1991, 1993, 1994, 1995, 1997, 2000, 2001
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 TARGETNAME "a.out-hp300hpux"
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/* Do not "beautify" the CONCAT* macro args. Traditional C will not
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remove whitespace added here, and thus will fail to concatenate
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the tokens. */
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#define MY(OP) CONCAT2 (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_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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(CONCAT2 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_read_minisymbols _bfd_generic_read_minisymbols
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#define MY_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
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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_final_link_callback unused
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#define MY_bfd_final_link _bfd_generic_final_link
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/* Until and unless we convert the slurp_reloc and slurp_symtab
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routines in this file, we can not use the default aout
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free_cached_info routine which assumes that the relocs and symtabs
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were allocated using malloc. */
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#define MY_bfd_free_cached_info bfd_true
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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 MY_exec_hdr_flags 0x2
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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) CONCAT3 (hp300hpux,_32_,y)
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#define ARCH_SIZE 32
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/* aoutx.h requires definitions for BMAGIC and QMAGIC. */
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#define BMAGIC HPUX_DOT_O_MAGIC
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#define QMAGIC 0314
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#include "aoutx.h"
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static const bfd_target * MY (callback) PARAMS ((bfd *));
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static boolean MY (write_object_contents) PARAMS ((bfd *));
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static void convert_sym_type PARAMS ((struct external_nlist *, aout_symbol_type *, bfd *));
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boolean MY (slurp_symbol_table) PARAMS ((bfd *));
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void MY (swap_std_reloc_in) PARAMS ((bfd *, struct hp300hpux_reloc *, arelent *, asymbol **, bfd_size_type));
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boolean MY (slurp_reloc_table) PARAMS ((bfd *, sec_ptr, asymbol **));
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long MY (get_symtab) PARAMS ((bfd *, asymbol **));
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long MY (get_symtab_upper_bound) PARAMS ((bfd *));
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long MY (canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
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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 const bfd_target *
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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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obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
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obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;
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obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;
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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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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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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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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, aout_backend_info (abfd)->exec_hdr_flags);
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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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H_PUT_32 (abfd, (bfd_get_symcount (abfd) * 12), exec_bytes.e_drelocs);
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if (bfd_seek (abfd, (file_ptr) 0, false) != 0
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|| (bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd)
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!= EXEC_BYTES_SIZE))
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return false;
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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),
|
322 |
|
|
SEEK_SET) != 0)
|
323 |
|
|
return false;
|
324 |
|
|
}
|
325 |
|
|
|
326 |
|
|
if (!MY (write_syms) (abfd))
|
327 |
|
|
return false;
|
328 |
|
|
|
329 |
|
|
if (bfd_get_symcount (abfd) != 0)
|
330 |
|
|
{
|
331 |
|
|
if (bfd_seek (abfd, (file_ptr) N_TRELOFF (*execp), SEEK_CUR) != 0)
|
332 |
|
|
return false;
|
333 |
|
|
if (!NAME (aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))
|
334 |
|
|
return false;
|
335 |
|
|
if (bfd_seek (abfd, (file_ptr) N_DRELOFF (*execp), SEEK_CUR) != 0)
|
336 |
|
|
return false;
|
337 |
|
|
if (!NAME (aout,squirt_out_relocs) (abfd, obj_datasec (abfd)))
|
338 |
|
|
return false;
|
339 |
|
|
}
|
340 |
|
|
|
341 |
|
|
return true;
|
342 |
|
|
}
|
343 |
|
|
|
344 |
|
|
/* convert the hp symbol type to be the same as aout64.h usage so we */
|
345 |
|
|
/* can piggyback routines in aoutx.h. */
|
346 |
|
|
|
347 |
|
|
static void
|
348 |
|
|
convert_sym_type (sym_pointer, cache_ptr, abfd)
|
349 |
|
|
struct external_nlist *sym_pointer ATTRIBUTE_UNUSED;
|
350 |
|
|
aout_symbol_type *cache_ptr;
|
351 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
352 |
|
|
{
|
353 |
|
|
int name_type;
|
354 |
|
|
int new_type;
|
355 |
|
|
|
356 |
|
|
name_type = (cache_ptr->type);
|
357 |
|
|
new_type = 0;
|
358 |
|
|
|
359 |
|
|
if ((name_type & HP_SYMTYPE_ALIGN) != 0)
|
360 |
|
|
{
|
361 |
|
|
/* iou_error ("aligned symbol encountered: %s", name);*/
|
362 |
|
|
name_type = 0;
|
363 |
|
|
}
|
364 |
|
|
|
365 |
|
|
if (name_type == HP_SYMTYPE_FILENAME)
|
366 |
|
|
new_type = N_FN;
|
367 |
|
|
else
|
368 |
|
|
{
|
369 |
|
|
switch (name_type & HP_SYMTYPE_TYPE)
|
370 |
|
|
{
|
371 |
|
|
case HP_SYMTYPE_UNDEFINED:
|
372 |
|
|
new_type = N_UNDF;
|
373 |
|
|
break;
|
374 |
|
|
|
375 |
|
|
case HP_SYMTYPE_ABSOLUTE:
|
376 |
|
|
new_type = N_ABS;
|
377 |
|
|
break;
|
378 |
|
|
|
379 |
|
|
case HP_SYMTYPE_TEXT:
|
380 |
|
|
new_type = N_TEXT;
|
381 |
|
|
break;
|
382 |
|
|
|
383 |
|
|
case HP_SYMTYPE_DATA:
|
384 |
|
|
new_type = N_DATA;
|
385 |
|
|
break;
|
386 |
|
|
|
387 |
|
|
case HP_SYMTYPE_BSS:
|
388 |
|
|
new_type = N_BSS;
|
389 |
|
|
break;
|
390 |
|
|
|
391 |
|
|
case HP_SYMTYPE_COMMON:
|
392 |
|
|
new_type = N_COMM;
|
393 |
|
|
break;
|
394 |
|
|
|
395 |
|
|
default:
|
396 |
|
|
abort ();
|
397 |
|
|
break;
|
398 |
|
|
}
|
399 |
|
|
if (name_type & HP_SYMTYPE_EXTERNAL)
|
400 |
|
|
new_type |= N_EXT;
|
401 |
|
|
|
402 |
|
|
if (name_type & HP_SECONDARY_SYMBOL)
|
403 |
|
|
{
|
404 |
|
|
switch (new_type)
|
405 |
|
|
{
|
406 |
|
|
default:
|
407 |
|
|
abort ();
|
408 |
|
|
case N_UNDF | N_EXT:
|
409 |
|
|
/* If the value is nonzero, then just treat this as a
|
410 |
|
|
common symbol. I don't know if this is correct in
|
411 |
|
|
all cases, but it is more correct than treating it as
|
412 |
|
|
a weak undefined symbol. */
|
413 |
|
|
if (cache_ptr->symbol.value == 0)
|
414 |
|
|
new_type = N_WEAKU;
|
415 |
|
|
break;
|
416 |
|
|
case N_ABS | N_EXT:
|
417 |
|
|
new_type = N_WEAKA;
|
418 |
|
|
break;
|
419 |
|
|
case N_TEXT | N_EXT:
|
420 |
|
|
new_type = N_WEAKT;
|
421 |
|
|
break;
|
422 |
|
|
case N_DATA | N_EXT:
|
423 |
|
|
new_type = N_WEAKD;
|
424 |
|
|
break;
|
425 |
|
|
case N_BSS | N_EXT:
|
426 |
|
|
new_type = N_WEAKB;
|
427 |
|
|
break;
|
428 |
|
|
}
|
429 |
|
|
}
|
430 |
|
|
}
|
431 |
|
|
cache_ptr->type = new_type;
|
432 |
|
|
|
433 |
|
|
}
|
434 |
|
|
|
435 |
|
|
/*
|
436 |
|
|
DESCRIPTION
|
437 |
|
|
Swaps the information in an executable header taken from a raw
|
438 |
|
|
byte stream memory image, into the internal exec_header
|
439 |
|
|
structure.
|
440 |
|
|
*/
|
441 |
|
|
|
442 |
|
|
void
|
443 |
|
|
NAME (aout,swap_exec_header_in) (abfd, raw_bytes, execp)
|
444 |
|
|
bfd *abfd;
|
445 |
|
|
struct external_exec *raw_bytes;
|
446 |
|
|
struct internal_exec *execp;
|
447 |
|
|
{
|
448 |
|
|
struct external_exec *bytes = (struct external_exec *) raw_bytes;
|
449 |
|
|
|
450 |
|
|
/* The internal_exec structure has some fields that are unused in this
|
451 |
|
|
configuration (IE for i960), so ensure that all such uninitialized
|
452 |
|
|
fields are zero'd out. There are places where two of these structs
|
453 |
|
|
are memcmp'd, and thus the contents do matter. */
|
454 |
|
|
memset (execp, 0, sizeof (struct internal_exec));
|
455 |
|
|
/* Now fill in fields in the execp, from the bytes in the raw data. */
|
456 |
|
|
execp->a_info = H_GET_32 (abfd, bytes->e_info);
|
457 |
|
|
execp->a_text = GET_WORD (abfd, bytes->e_text);
|
458 |
|
|
execp->a_data = GET_WORD (abfd, bytes->e_data);
|
459 |
|
|
execp->a_bss = GET_WORD (abfd, bytes->e_bss);
|
460 |
|
|
execp->a_syms = GET_WORD (abfd, bytes->e_syms);
|
461 |
|
|
execp->a_entry = GET_WORD (abfd, bytes->e_entry);
|
462 |
|
|
execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
|
463 |
|
|
execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
|
464 |
|
|
|
465 |
|
|
/***************************************************************/
|
466 |
|
|
/* check the header to see if it was generated by a bfd output */
|
467 |
|
|
/* this is detected rather bizarely by requiring a bunch of */
|
468 |
|
|
/* header fields to be zero and an old unused field (now used) */
|
469 |
|
|
/* to be set. */
|
470 |
|
|
/***************************************************************/
|
471 |
|
|
do
|
472 |
|
|
{
|
473 |
|
|
long syms;
|
474 |
|
|
struct aout_data_struct *rawptr;
|
475 |
|
|
bfd_size_type amt;
|
476 |
|
|
|
477 |
|
|
if (H_GET_32 (abfd, bytes->e_passize) != 0)
|
478 |
|
|
break;
|
479 |
|
|
if (H_GET_32 (abfd, bytes->e_syms) != 0)
|
480 |
|
|
break;
|
481 |
|
|
if (H_GET_32 (abfd, bytes->e_supsize) != 0)
|
482 |
|
|
break;
|
483 |
|
|
|
484 |
|
|
syms = H_GET_32 (abfd, bytes->e_drelocs);
|
485 |
|
|
if (syms == 0)
|
486 |
|
|
break;
|
487 |
|
|
|
488 |
|
|
/* OK, we've passed the test as best as we can determine */
|
489 |
|
|
execp->a_syms = syms;
|
490 |
|
|
|
491 |
|
|
/* allocate storage for where we will store this result */
|
492 |
|
|
amt = sizeof (*rawptr);
|
493 |
|
|
rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
|
494 |
|
|
|
495 |
|
|
if (rawptr == NULL)
|
496 |
|
|
return;
|
497 |
|
|
abfd->tdata.aout_data = rawptr;
|
498 |
|
|
obj_aout_subformat (abfd) = gnu_encap_format;
|
499 |
|
|
}
|
500 |
|
|
while (0);
|
501 |
|
|
}
|
502 |
|
|
|
503 |
|
|
/* The hp symbol table is a bit different than other a.out targets. Instead
|
504 |
|
|
of having an array of nlist items and an array of strings, hp's format
|
505 |
|
|
has them mixed together in one structure. In addition, the strings are
|
506 |
|
|
not null terminated. It looks something like this:
|
507 |
|
|
|
508 |
|
|
nlist element 1
|
509 |
|
|
string1
|
510 |
|
|
nlist element 2
|
511 |
|
|
string2
|
512 |
|
|
...
|
513 |
|
|
|
514 |
|
|
The whole symbol table is read as one chunk and then we march thru it
|
515 |
|
|
and convert it to canonical form. As we march thru the table, we copy
|
516 |
|
|
the nlist data into the internal form and we compact the strings and null
|
517 |
|
|
terminate them, using storage from the already allocated symbol table:
|
518 |
|
|
|
519 |
|
|
string1
|
520 |
|
|
null
|
521 |
|
|
string2
|
522 |
|
|
null
|
523 |
|
|
...
|
524 |
|
|
*/
|
525 |
|
|
|
526 |
|
|
boolean
|
527 |
|
|
MY (slurp_symbol_table) (abfd)
|
528 |
|
|
bfd *abfd;
|
529 |
|
|
{
|
530 |
|
|
bfd_size_type symbol_bytes;
|
531 |
|
|
struct external_nlist *syms;
|
532 |
|
|
struct external_nlist *sym_pointer;
|
533 |
|
|
struct external_nlist *sym_end;
|
534 |
|
|
char *strings;
|
535 |
|
|
aout_symbol_type *cached;
|
536 |
|
|
unsigned num_syms = 0;
|
537 |
|
|
bfd_size_type amt;
|
538 |
|
|
|
539 |
|
|
/* If there's no work to be done, don't do any */
|
540 |
|
|
if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL)
|
541 |
|
|
return true;
|
542 |
|
|
symbol_bytes = exec_hdr (abfd)->a_syms;
|
543 |
|
|
|
544 |
|
|
amt = symbol_bytes + SYM_EXTRA_BYTES;
|
545 |
|
|
strings = (char *) bfd_alloc (abfd, amt);
|
546 |
|
|
if (!strings)
|
547 |
|
|
return false;
|
548 |
|
|
syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES);
|
549 |
|
|
if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
|
550 |
|
|
|| bfd_bread ((PTR) syms, symbol_bytes, abfd) != symbol_bytes)
|
551 |
|
|
{
|
552 |
|
|
bfd_release (abfd, syms);
|
553 |
|
|
return false;
|
554 |
|
|
}
|
555 |
|
|
|
556 |
|
|
sym_end = (struct external_nlist *) (((char *) syms) + symbol_bytes);
|
557 |
|
|
|
558 |
|
|
/* first, march thru the table and figure out how many symbols there are */
|
559 |
|
|
for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++)
|
560 |
|
|
{
|
561 |
|
|
/* skip over the embedded symbol. */
|
562 |
|
|
sym_pointer = (struct external_nlist *) (((char *) sym_pointer) +
|
563 |
|
|
sym_pointer->e_length[0]);
|
564 |
|
|
}
|
565 |
|
|
|
566 |
|
|
/* now that we know the symbol count, update the bfd header */
|
567 |
|
|
bfd_get_symcount (abfd) = num_syms;
|
568 |
|
|
|
569 |
|
|
amt = num_syms;
|
570 |
|
|
amt *= sizeof (aout_symbol_type);
|
571 |
|
|
cached = (aout_symbol_type *) bfd_zalloc (abfd, amt);
|
572 |
|
|
if (cached == NULL && num_syms != 0)
|
573 |
|
|
return false;
|
574 |
|
|
|
575 |
|
|
/* as we march thru the hp symbol table, convert it into a list of
|
576 |
|
|
null terminated strings to hold the symbol names. Make sure any
|
577 |
|
|
assignment to the strings pointer is done after we're thru using
|
578 |
|
|
the nlist so we don't overwrite anything important. */
|
579 |
|
|
|
580 |
|
|
/* OK, now walk the new symtable, cacheing symbol properties */
|
581 |
|
|
{
|
582 |
|
|
aout_symbol_type *cache_ptr = cached;
|
583 |
|
|
aout_symbol_type cache_save;
|
584 |
|
|
/* Run through table and copy values */
|
585 |
|
|
for (sym_pointer = syms, cache_ptr = cached;
|
586 |
|
|
sym_pointer < sym_end; sym_pointer++, cache_ptr++)
|
587 |
|
|
{
|
588 |
|
|
unsigned int length;
|
589 |
|
|
cache_ptr->symbol.the_bfd = abfd;
|
590 |
|
|
cache_ptr->symbol.value = GET_SWORD (abfd, sym_pointer->e_value);
|
591 |
|
|
cache_ptr->desc = bfd_get_16 (abfd, sym_pointer->e_almod);
|
592 |
|
|
cache_ptr->type = bfd_get_8 (abfd, sym_pointer->e_type);
|
593 |
|
|
cache_ptr->symbol.udata.p = NULL;
|
594 |
|
|
length = bfd_get_8 (abfd, sym_pointer->e_length);
|
595 |
|
|
cache_ptr->other = length; /* other not used, save length here */
|
596 |
|
|
|
597 |
|
|
cache_save = *cache_ptr;
|
598 |
|
|
convert_sym_type (sym_pointer, cache_ptr, abfd);
|
599 |
|
|
if (!translate_from_native_sym_flags (abfd, cache_ptr))
|
600 |
|
|
return false;
|
601 |
|
|
|
602 |
|
|
/********************************************************/
|
603 |
|
|
/* for hpux, the 'lenght' value indicates the length of */
|
604 |
|
|
/* the symbol name which follows the nlist entry. */
|
605 |
|
|
/********************************************************/
|
606 |
|
|
if (length)
|
607 |
|
|
{
|
608 |
|
|
/**************************************************************/
|
609 |
|
|
/* the hp string is not null terminated so we create a new one*/
|
610 |
|
|
/* by copying the string to overlap the just vacated nlist */
|
611 |
|
|
/* structure before it in memory. */
|
612 |
|
|
/**************************************************************/
|
613 |
|
|
cache_ptr->symbol.name = strings;
|
614 |
|
|
memcpy (strings, sym_pointer + 1, length);
|
615 |
|
|
strings[length] = '\0';
|
616 |
|
|
strings += length + 1;
|
617 |
|
|
}
|
618 |
|
|
else
|
619 |
|
|
cache_ptr->symbol.name = (char *) NULL;
|
620 |
|
|
|
621 |
|
|
/* skip over the embedded symbol. */
|
622 |
|
|
sym_pointer = (struct external_nlist *) (((char *) sym_pointer) +
|
623 |
|
|
length);
|
624 |
|
|
}
|
625 |
|
|
}
|
626 |
|
|
|
627 |
|
|
obj_aout_symbols (abfd) = cached;
|
628 |
|
|
|
629 |
|
|
return true;
|
630 |
|
|
}
|
631 |
|
|
|
632 |
|
|
void
|
633 |
|
|
MY (swap_std_reloc_in) (abfd, bytes, cache_ptr, symbols, symcount)
|
634 |
|
|
bfd *abfd;
|
635 |
|
|
struct hp300hpux_reloc *bytes;
|
636 |
|
|
arelent *cache_ptr;
|
637 |
|
|
asymbol **symbols;
|
638 |
|
|
bfd_size_type symcount ATTRIBUTE_UNUSED;
|
639 |
|
|
{
|
640 |
|
|
int r_index;
|
641 |
|
|
int r_extern = 0;
|
642 |
|
|
unsigned int r_length;
|
643 |
|
|
int r_pcrel = 0;
|
644 |
|
|
struct aoutdata *su = &(abfd->tdata.aout_data->a);
|
645 |
|
|
|
646 |
|
|
cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
|
647 |
|
|
r_index = H_GET_16 (abfd, bytes->r_index);
|
648 |
|
|
|
649 |
|
|
switch (bytes->r_type[0])
|
650 |
|
|
{
|
651 |
|
|
case HP_RSEGMENT_TEXT:
|
652 |
|
|
r_index = N_TEXT;
|
653 |
|
|
break;
|
654 |
|
|
case HP_RSEGMENT_DATA:
|
655 |
|
|
r_index = N_DATA;
|
656 |
|
|
break;
|
657 |
|
|
case HP_RSEGMENT_BSS:
|
658 |
|
|
r_index = N_BSS;
|
659 |
|
|
break;
|
660 |
|
|
case HP_RSEGMENT_EXTERNAL:
|
661 |
|
|
r_extern = 1;
|
662 |
|
|
break;
|
663 |
|
|
case HP_RSEGMENT_PCREL:
|
664 |
|
|
r_extern = 1;
|
665 |
|
|
r_pcrel = 1;
|
666 |
|
|
break;
|
667 |
|
|
case HP_RSEGMENT_RDLT:
|
668 |
|
|
break;
|
669 |
|
|
case HP_RSEGMENT_RPLT:
|
670 |
|
|
break;
|
671 |
|
|
case HP_RSEGMENT_NOOP:
|
672 |
|
|
break;
|
673 |
|
|
default:
|
674 |
|
|
abort ();
|
675 |
|
|
break;
|
676 |
|
|
}
|
677 |
|
|
|
678 |
|
|
switch (bytes->r_length[0])
|
679 |
|
|
{
|
680 |
|
|
case HP_RLENGTH_BYTE:
|
681 |
|
|
r_length = 0;
|
682 |
|
|
break;
|
683 |
|
|
case HP_RLENGTH_WORD:
|
684 |
|
|
r_length = 1;
|
685 |
|
|
break;
|
686 |
|
|
case HP_RLENGTH_LONG:
|
687 |
|
|
r_length = 2;
|
688 |
|
|
break;
|
689 |
|
|
default:
|
690 |
|
|
abort ();
|
691 |
|
|
break;
|
692 |
|
|
}
|
693 |
|
|
|
694 |
|
|
cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel;
|
695 |
|
|
/* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */
|
696 |
|
|
|
697 |
|
|
/* This macro uses the r_index value computed above */
|
698 |
|
|
if (r_pcrel && r_extern)
|
699 |
|
|
{
|
700 |
|
|
/* The GNU linker assumes any offset from beginning of section */
|
701 |
|
|
/* is already incorporated into the image while the HP linker */
|
702 |
|
|
/* adds this in later. Add it in now... */
|
703 |
|
|
MOVE_ADDRESS (-cache_ptr->address);
|
704 |
|
|
}
|
705 |
|
|
else
|
706 |
|
|
{
|
707 |
|
|
MOVE_ADDRESS (0);
|
708 |
|
|
}
|
709 |
|
|
}
|
710 |
|
|
|
711 |
|
|
boolean
|
712 |
|
|
MY (slurp_reloc_table) (abfd, asect, symbols)
|
713 |
|
|
bfd *abfd;
|
714 |
|
|
sec_ptr asect;
|
715 |
|
|
asymbol **symbols;
|
716 |
|
|
{
|
717 |
|
|
bfd_size_type count;
|
718 |
|
|
bfd_size_type reloc_size;
|
719 |
|
|
PTR relocs;
|
720 |
|
|
arelent *reloc_cache;
|
721 |
|
|
size_t each_size;
|
722 |
|
|
struct hp300hpux_reloc *rptr;
|
723 |
|
|
unsigned int counter;
|
724 |
|
|
arelent *cache_ptr;
|
725 |
|
|
|
726 |
|
|
if (asect->relocation)
|
727 |
|
|
return true;
|
728 |
|
|
|
729 |
|
|
if (asect->flags & SEC_CONSTRUCTOR)
|
730 |
|
|
return true;
|
731 |
|
|
|
732 |
|
|
if (asect == obj_datasec (abfd))
|
733 |
|
|
{
|
734 |
|
|
reloc_size = exec_hdr (abfd)->a_drsize;
|
735 |
|
|
goto doit;
|
736 |
|
|
}
|
737 |
|
|
|
738 |
|
|
if (asect == obj_textsec (abfd))
|
739 |
|
|
{
|
740 |
|
|
reloc_size = exec_hdr (abfd)->a_trsize;
|
741 |
|
|
goto doit;
|
742 |
|
|
}
|
743 |
|
|
|
744 |
|
|
bfd_set_error (bfd_error_invalid_operation);
|
745 |
|
|
return false;
|
746 |
|
|
|
747 |
|
|
doit:
|
748 |
|
|
if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
|
749 |
|
|
return false;
|
750 |
|
|
each_size = obj_reloc_entry_size (abfd);
|
751 |
|
|
|
752 |
|
|
count = reloc_size / each_size;
|
753 |
|
|
|
754 |
|
|
reloc_cache = (arelent *) bfd_zalloc (abfd, count * sizeof (arelent));
|
755 |
|
|
if (!reloc_cache && count != 0)
|
756 |
|
|
return false;
|
757 |
|
|
|
758 |
|
|
relocs = (PTR) bfd_alloc (abfd, reloc_size);
|
759 |
|
|
if (!relocs && reloc_size != 0)
|
760 |
|
|
{
|
761 |
|
|
bfd_release (abfd, reloc_cache);
|
762 |
|
|
return false;
|
763 |
|
|
}
|
764 |
|
|
|
765 |
|
|
if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
|
766 |
|
|
{
|
767 |
|
|
bfd_release (abfd, relocs);
|
768 |
|
|
bfd_release (abfd, reloc_cache);
|
769 |
|
|
return false;
|
770 |
|
|
}
|
771 |
|
|
|
772 |
|
|
rptr = (struct hp300hpux_reloc *) relocs;
|
773 |
|
|
counter = 0;
|
774 |
|
|
cache_ptr = reloc_cache;
|
775 |
|
|
|
776 |
|
|
for (; counter < count; counter++, rptr++, cache_ptr++)
|
777 |
|
|
{
|
778 |
|
|
MY (swap_std_reloc_in) (abfd, rptr, cache_ptr, symbols,
|
779 |
|
|
(bfd_size_type) bfd_get_symcount (abfd));
|
780 |
|
|
}
|
781 |
|
|
|
782 |
|
|
bfd_release (abfd, relocs);
|
783 |
|
|
asect->relocation = reloc_cache;
|
784 |
|
|
asect->reloc_count = count;
|
785 |
|
|
return true;
|
786 |
|
|
}
|
787 |
|
|
|
788 |
|
|
/************************************************************************/
|
789 |
|
|
/* The following functions are identical to functions in aoutx.h except */
|
790 |
|
|
/* they refer to MY(func) rather than NAME(aout,func) and they also */
|
791 |
|
|
/* call aout_32 versions if the input file was generated by gcc */
|
792 |
|
|
/************************************************************************/
|
793 |
|
|
|
794 |
|
|
long aout_32_get_symtab PARAMS ((bfd * abfd, asymbol ** location));
|
795 |
|
|
long aout_32_get_symtab_upper_bound PARAMS ((bfd * abfd));
|
796 |
|
|
|
797 |
|
|
long aout_32_canonicalize_reloc PARAMS ((bfd * abfd, sec_ptr section,
|
798 |
|
|
arelent ** relptr,
|
799 |
|
|
asymbol ** symbols));
|
800 |
|
|
|
801 |
|
|
long
|
802 |
|
|
MY (get_symtab) (abfd, location)
|
803 |
|
|
bfd *abfd;
|
804 |
|
|
asymbol **location;
|
805 |
|
|
{
|
806 |
|
|
unsigned int counter = 0;
|
807 |
|
|
aout_symbol_type *symbase;
|
808 |
|
|
|
809 |
|
|
if (obj_aout_subformat (abfd) == gnu_encap_format)
|
810 |
|
|
return aout_32_get_symtab (abfd, location);
|
811 |
|
|
|
812 |
|
|
if (!MY (slurp_symbol_table) (abfd))
|
813 |
|
|
return -1;
|
814 |
|
|
|
815 |
|
|
for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);)
|
816 |
|
|
*(location++) = (asymbol *) (symbase++);
|
817 |
|
|
*location++ = 0;
|
818 |
|
|
return bfd_get_symcount (abfd);
|
819 |
|
|
}
|
820 |
|
|
|
821 |
|
|
long
|
822 |
|
|
MY (get_symtab_upper_bound) (abfd)
|
823 |
|
|
bfd *abfd;
|
824 |
|
|
{
|
825 |
|
|
if (obj_aout_subformat (abfd) == gnu_encap_format)
|
826 |
|
|
return aout_32_get_symtab_upper_bound (abfd);
|
827 |
|
|
if (!MY (slurp_symbol_table) (abfd))
|
828 |
|
|
return -1;
|
829 |
|
|
|
830 |
|
|
return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *));
|
831 |
|
|
}
|
832 |
|
|
|
833 |
|
|
long
|
834 |
|
|
MY (canonicalize_reloc) (abfd, section, relptr, symbols)
|
835 |
|
|
bfd *abfd;
|
836 |
|
|
sec_ptr section;
|
837 |
|
|
arelent **relptr;
|
838 |
|
|
asymbol **symbols;
|
839 |
|
|
{
|
840 |
|
|
arelent *tblptr = section->relocation;
|
841 |
|
|
unsigned int count;
|
842 |
|
|
if (obj_aout_subformat (abfd) == gnu_encap_format)
|
843 |
|
|
return aout_32_canonicalize_reloc (abfd, section, relptr, symbols);
|
844 |
|
|
|
845 |
|
|
if (!(tblptr || MY (slurp_reloc_table) (abfd, section, symbols)))
|
846 |
|
|
return -1;
|
847 |
|
|
|
848 |
|
|
if (section->flags & SEC_CONSTRUCTOR)
|
849 |
|
|
{
|
850 |
|
|
arelent_chain *chain = section->constructor_chain;
|
851 |
|
|
for (count = 0; count < section->reloc_count; count++)
|
852 |
|
|
{
|
853 |
|
|
*relptr++ = &chain->relent;
|
854 |
|
|
chain = chain->next;
|
855 |
|
|
}
|
856 |
|
|
}
|
857 |
|
|
else
|
858 |
|
|
{
|
859 |
|
|
tblptr = section->relocation;
|
860 |
|
|
|
861 |
|
|
for (count = 0; count++ < section->reloc_count;)
|
862 |
|
|
{
|
863 |
|
|
*relptr++ = tblptr++;
|
864 |
|
|
}
|
865 |
|
|
}
|
866 |
|
|
*relptr = 0;
|
867 |
|
|
|
868 |
|
|
return section->reloc_count;
|
869 |
|
|
}
|
870 |
|
|
|
871 |
|
|
#include "aout-target.h"
|