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4613510308
The main aim of this change was to have non_ir_ref set correctly on new indirect symbols. I could have added a "copy" param to the "notice" function, so that indirect symbols could be created in plugin_notice, but it seemed cleaner to create indirect syms earlier and pass them rather than "string" to "notice". include/ * bfdlink.h (struct bfd_link_callbacks <notice>): Remove "string" param, add "inh". bfd/ * coff-aux.c (coff_m68k_aux_link_add_one_symbol): Only call "notice" here when not calling the generic add_symbol function. Formatting. Correct handling of indirect symbols. Update notice call. * elflink.c (_bfd_elf_notice_as_needed): Update notice call. * linker.c (_bfd_generic_link_add_one_symbol): Create indirect symbols early. Update notice call. Add comments regarding weak symbols vs. indirect. ld/ * ldmain.c (notice): Update args. * plugin.c (plugin_notice): Likewise. Follow warning sym link. Handle new indirect symbol.
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/* BFD back-end for Apple M68K COFF A/UX 3.x files.
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Copyright (C) 1996-2014 Free Software Foundation, Inc.
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Written by Richard Henderson <rth@tamu.edu>.
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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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#define TARGET_SYM m68k_coff_aux_vec
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#define TARGET_NAME "coff-m68k-aux"
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#ifndef TARG_AUX
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#define TARG_AUX
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#endif
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#define COFF_LONG_FILENAMES
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/* 4k pages */
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#define COFF_PAGE_SIZE 0x1000
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/* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */
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#define BSS_NOLOAD_IS_SHARED_LIBRARY
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#define STATIC_RELOCS
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#define COFF_COMMON_ADDEND
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#include "sysdep.h"
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#include "bfd.h"
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#define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol
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static bfd_boolean
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coff_m68k_aux_link_add_one_symbol
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(struct bfd_link_info *, bfd *, const char *, flagword, asection *,
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bfd_vma, const char *, bfd_boolean, bfd_boolean,
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struct bfd_link_hash_entry **);
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#ifndef bfd_pe_print_pdata
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#define bfd_pe_print_pdata NULL
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#endif
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#include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */
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#include "coff-m68k.c"
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/* We need non-absolute symbols to override absolute symbols. This
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mirrors Apple's "solution" to let a static library symbol override
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a shared library symbol. On the whole not a good thing, given how
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shared libraries work here, but can work if you are careful with
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what you include in the shared object. */
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static bfd_boolean
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coff_m68k_aux_link_add_one_symbol (struct bfd_link_info *info,
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bfd *abfd,
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const char *name,
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flagword flags,
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asection *section,
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bfd_vma value,
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const char *string,
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bfd_boolean copy,
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bfd_boolean collect,
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struct bfd_link_hash_entry **hashp)
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{
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struct bfd_link_hash_entry *h, *inh, *t;
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if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0
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&& !bfd_is_und_section (section)
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&& !bfd_is_com_section (section))
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{
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/* The new symbol is a definition or an indirect definition */
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/* This bit copied from linker.c */
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if (hashp != NULL && *hashp != NULL)
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h = *hashp;
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else
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{
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h = bfd_link_hash_lookup (info->hash, name, TRUE, copy, FALSE);
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if (h == NULL)
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{
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if (hashp != NULL)
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*hashp = NULL;
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return FALSE;
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}
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}
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if (hashp != (struct bfd_link_hash_entry **) NULL)
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*hashp = h;
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/* end duplication from linker.c */
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t = h;
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inh = NULL;
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if (h->type == bfd_link_hash_indirect)
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{
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inh = h->u.i.link;
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t = inh;
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}
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if (t->type == bfd_link_hash_defined)
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{
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asection *msec = t->u.def.section;
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bfd_boolean special = FALSE;
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if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section))
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{
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t->u.def.section = section;
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t->u.def.value = value;
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special = TRUE;
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}
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else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec))
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special = TRUE;
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if (special)
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{
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if (info->notice_all
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|| (info->notice_hash != NULL
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&& bfd_hash_lookup (info->notice_hash, name,
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FALSE, FALSE) != NULL))
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{
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if (!(*info->callbacks->notice) (info, h, inh,
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abfd, section, value, flags))
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return FALSE;
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}
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return TRUE;
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}
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}
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}
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/* If we didn't exit early, finish processing in the generic routine */
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return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
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value, string, copy, collect,
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hashp);
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}
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