merge from gcc
[binutils.git] / bfd / coff-aux.c
blob2101dd348c42022f2673d66643992a06c24b3108
1 /* BFD back-end for Apple M68K COFF A/UX 3.x files.
2 Copyright 1996, 1997, 2000, 2002, 2007, 2008
3 Free Software Foundation, Inc.
4 Written by Richard Henderson <rth@tamu.edu>.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
23 #define TARGET_SYM m68kaux_coff_vec
24 #define TARGET_NAME "coff-m68k-aux"
26 #ifndef TARG_AUX
27 #define TARG_AUX
28 #endif
30 #define COFF_LONG_FILENAMES
32 /* 4k pages */
33 #define COFF_PAGE_SIZE 0x1000
35 /* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */
36 #define BSS_NOLOAD_IS_SHARED_LIBRARY
38 #define STATIC_RELOCS
40 #define COFF_COMMON_ADDEND
42 #include "sysdep.h"
43 #include "bfd.h"
45 static bfd_boolean coff_m68k_aux_link_add_one_symbol
46 PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
47 asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
48 struct bfd_link_hash_entry **));
50 #define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol
52 #ifndef bfd_pe_print_pdata
53 #define bfd_pe_print_pdata NULL
54 #endif
56 #include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */
57 #include "coff-m68k.c"
59 /* We need non-absolute symbols to override absolute symbols. This
60 mirrors Apple's "solution" to let a static library symbol override
61 a shared library symbol. On the whole not a good thing, given how
62 shared libraries work here, but can work if you are careful with
63 what you include in the shared object. */
65 static bfd_boolean
66 coff_m68k_aux_link_add_one_symbol (info, abfd, name, flags, section, value,
67 string, copy, collect, hashp)
68 struct bfd_link_info *info;
69 bfd *abfd;
70 const char *name;
71 flagword flags;
72 asection *section;
73 bfd_vma value;
74 const char *string;
75 bfd_boolean copy;
76 bfd_boolean collect;
77 struct bfd_link_hash_entry **hashp;
79 struct bfd_link_hash_entry *h;
81 if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 &&
82 !bfd_is_und_section (section) &&
83 !bfd_is_com_section (section))
85 /* The new symbol is a definition or an indirect definition */
87 /* This bit copied from linker.c */
88 if (hashp != NULL && *hashp != NULL)
90 h = *hashp;
91 BFD_ASSERT (strcmp (h->root.string, name) == 0);
93 else
95 h = bfd_link_hash_lookup (info->hash, name, TRUE, copy, FALSE);
96 if (h == NULL)
98 if (hashp != NULL)
99 *hashp = NULL;
100 return FALSE;
104 if (info->notice_hash != (struct bfd_hash_table *) NULL
105 && (bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE)
106 != (struct bfd_hash_entry *) NULL))
108 if (! (*info->callbacks->notice) (info, name, abfd, section, value))
109 return FALSE;
112 if (hashp != (struct bfd_link_hash_entry **) NULL)
113 *hashp = h;
114 /* end duplication from linker.c */
116 if (h->type == bfd_link_hash_defined
117 || h->type == bfd_link_hash_indirect)
119 asection *msec;
121 if (h->type == bfd_link_hash_defined)
122 msec = h->u.def.section;
123 else
124 msec = bfd_ind_section_ptr;
126 if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section))
128 h->u.def.section = section;
129 h->u.def.value = value;
130 return TRUE;
132 else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec))
133 return TRUE;
137 /* If we didn't exit early, finish processing in the generic routine */
138 return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
139 value, string, copy, collect,
140 hashp);