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252b5132 RH |
1 | /* BFD back-end for Mach3/532 a.out-ish binaries. |
2 | Copyright (C) 1990, 1991, 1992, 1994 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | /* Written by Ian Dall | |
21 | * 19-Apr-94 | |
22 | * | |
23 | * Formerly part of aout-pc532-mach.c. Split out to allow more | |
24 | * flexibility with multiple formats. | |
25 | * | |
26 | */ | |
27 | /* This architecture has N_TXTOFF and N_TXTADDR defined as if | |
28 | * N_HEADER_IN_TEXT, but the a_text entry (text size) does not include the | |
29 | * space for the header. So we have N_HEADER_IN_TEXT defined to | |
30 | * 1 and specially define our own N_TXTSIZE | |
31 | */ | |
32 | ||
33 | #define N_HEADER_IN_TEXT(x) 1 | |
34 | #define N_TXTSIZE(x) ((x).a_text) | |
35 | ||
36 | ||
37 | #define TEXT_START_ADDR 0x10000 /* from old ld */ | |
38 | #define TARGET_PAGE_SIZE 0x1000 /* from old ld, 032 & 532 are really 512/4k */ | |
39 | ||
40 | /* Use a_entry of 0 to distinguish object files from OMAGIC executables */ | |
41 | #define N_TXTADDR(x) \ | |
42 | (N_MAGIC(x) == OMAGIC ? \ | |
43 | ((x).a_entry < TEXT_START_ADDR? 0: TEXT_START_ADDR): \ | |
44 | (N_MAGIC(x) == NMAGIC? TEXT_START_ADDR: \ | |
45 | TEXT_START_ADDR + EXEC_BYTES_SIZE)) | |
46 | ||
47 | #define SEGMENT_SIZE TARGET_PAGE_SIZE | |
48 | ||
49 | #define N_SHARED_LIB(x) 0 | |
50 | #define SEGMENT_SIZE TARGET_PAGE_SIZE | |
51 | #define DEFAULT_ARCH bfd_arch_ns32k | |
52 | ||
53 | #define MY(OP) CAT(pc532machaout_,OP) | |
54 | ||
55 | /* Must be the same as aout-ns32k.c */ | |
56 | #define NAME(x,y) CAT3(ns32kaout,_32_,y) | |
57 | ||
58 | #define TARGETNAME "a.out-pc532-mach" | |
59 | ||
60 | #include "bfd.h" | |
61 | #include "sysdep.h" | |
62 | #include "libaout.h" | |
63 | #include "libbfd.h" | |
64 | #include "aout/aout64.h" | |
65 | ||
66 | /* We can`t use the MYNS macro here for cpp reasons too subtle for me -- IWD */ | |
67 | ||
68 | #define MY_bfd_reloc_type_lookup ns32kaout_bfd_reloc_type_lookup | |
69 | ||
70 | /* libaout doesn't use NAME for these ... */ | |
71 | ||
72 | #define MY_get_section_contents aout_32_get_section_contents | |
73 | ||
74 | #define MY_text_includes_header 1 | |
75 | ||
76 | #define MY_exec_header_not_counted 1 | |
77 | ||
78 | #define MYNSX(OP) CAT(ns32kaout_,OP) | |
79 | reloc_howto_type * | |
80 | MYNSX(bfd_reloc_type_lookup) | |
81 | PARAMS((bfd *abfd AND | |
82 | bfd_reloc_code_real_type code)); | |
83 | ||
84 | boolean | |
85 | MYNSX(write_object_contents) | |
86 | PARAMS((bfd *abfd)); | |
87 | ||
88 | static boolean | |
89 | MY(write_object_contents) (abfd) | |
90 | bfd *abfd; | |
91 | { | |
92 | struct external_exec exec_bytes; | |
93 | struct internal_exec *execp = exec_hdr (abfd); | |
94 | ||
95 | #if CHOOSE_RELOC_SIZE | |
96 | CHOOSE_RELOC_SIZE(abfd); | |
97 | #else | |
98 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
99 | #endif | |
100 | ||
101 | BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_ns32k); | |
102 | switch (bfd_get_mach (abfd)) | |
103 | { | |
104 | case 32032: | |
105 | N_SET_MACHTYPE (*execp, M_NS32032); | |
106 | break; | |
107 | case 32532: | |
108 | default: | |
109 | N_SET_MACHTYPE (*execp, M_NS32532); | |
110 | break; | |
111 | } | |
112 | N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags); | |
113 | ||
114 | WRITE_HEADERS(abfd, execp); | |
115 | ||
116 | return true; | |
117 | } | |
118 | ||
119 | #define MY_write_object_contents MY(write_object_contents) | |
120 | ||
121 | #include "aout-target.h" |