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[binutils.git] / bfd / coff-aux.c
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1 /* BFD back-end for Apple M68K COFF A/UX 3.x files.
2 Copyright 1996, 1997, 2000, 2002, 2007 Free Software Foundation, Inc.
3 Written by Richard Henderson <rth@tamu.edu>.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 #define TARGET_SYM m68kaux_coff_vec
23 #define TARGET_NAME "coff-m68k-aux"
25 #ifndef TARG_AUX
26 #define TARG_AUX
27 #endif
29 #define COFF_LONG_FILENAMES
31 /* 4k pages */
32 #define COFF_PAGE_SIZE 0x1000
34 /* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */
35 #define BSS_NOLOAD_IS_SHARED_LIBRARY
37 #define STATIC_RELOCS
39 #define COFF_COMMON_ADDEND
41 #include "sysdep.h"
42 #include "bfd.h"
44 static bfd_boolean coff_m68k_aux_link_add_one_symbol
45 PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
46 asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
47 struct bfd_link_hash_entry **));
49 #define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol
51 #include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */
52 #include "coff-m68k.c"
54 /* We need non-absolute symbols to override absolute symbols. This
55 mirrors Apple's "solution" to let a static library symbol override
56 a shared library symbol. On the whole not a good thing, given how
57 shared libraries work here, but can work if you are careful with
58 what you include in the shared object. */
60 static bfd_boolean
61 coff_m68k_aux_link_add_one_symbol (info, abfd, name, flags, section, value,
62 string, copy, collect, hashp)
63 struct bfd_link_info *info;
64 bfd *abfd;
65 const char *name;
66 flagword flags;
67 asection *section;
68 bfd_vma value;
69 const char *string;
70 bfd_boolean copy;
71 bfd_boolean collect;
72 struct bfd_link_hash_entry **hashp;
74 struct bfd_link_hash_entry *h;
76 if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 &&
77 !bfd_is_und_section (section) &&
78 !bfd_is_com_section (section))
80 /* The new symbol is a definition or an indirect definition */
82 /* This bit copied from linker.c */
83 if (hashp != NULL && *hashp != NULL)
85 h = *hashp;
86 BFD_ASSERT (strcmp (h->root.string, name) == 0);
88 else
90 h = bfd_link_hash_lookup (info->hash, name, TRUE, copy, FALSE);
91 if (h == NULL)
93 if (hashp != NULL)
94 *hashp = NULL;
95 return FALSE;
99 if (info->notice_hash != (struct bfd_hash_table *) NULL
100 && (bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE)
101 != (struct bfd_hash_entry *) NULL))
103 if (! (*info->callbacks->notice) (info, name, abfd, section, value))
104 return FALSE;
107 if (hashp != (struct bfd_link_hash_entry **) NULL)
108 *hashp = h;
109 /* end duplication from linker.c */
111 if (h->type == bfd_link_hash_defined
112 || h->type == bfd_link_hash_indirect)
114 asection *msec;
116 if (h->type == bfd_link_hash_defined)
117 msec = h->u.def.section;
118 else
119 msec = bfd_ind_section_ptr;
121 if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section))
123 h->u.def.section = section;
124 h->u.def.value = value;
125 return TRUE;
127 else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec))
128 return TRUE;
132 /* If we didn't exit early, finish processing in the generic routine */
133 return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
134 value, string, copy, collect,
135 hashp);