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29c4b8be KR |
1 | /* BFD back-end for AIX on PS/2 core files. |
2 | This was based on trad-core.c, which was written by John Gilmore of | |
3 | Cygnus Support. | |
4 | Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. | |
5 | Written by Minh Tran-Le <[email protected]>. | |
6 | Converted to back end form by Ian Lance Taylor <[email protected]>. | |
7 | ||
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
23 | ||
24 | /* To use this file on a particular host, configure the host with these | |
25 | parameters in the config/h-HOST file: | |
26 | ||
27 | HDEFINES=-DAIX386_CORE=1 | |
28 | HDEPFILES=aix386-core.o | |
29 | */ | |
30 | ||
31 | #include "bfd.h" | |
32 | #include "sysdep.h" | |
33 | #include "libbfd.h" | |
34 | #include "obstack.h" | |
35 | #include "coff/i386.h" | |
36 | #include "coff/internal.h" | |
37 | #include "libcoff.h" | |
38 | ||
39 | #include <stdio.h> | |
40 | #include <stddef.h> | |
41 | #include <signal.h> | |
42 | ||
43 | #include <errno.h> | |
44 | ||
45 | #if defined (_AIX) && defined (_I386) | |
46 | #define NOCHECKS /* this is for coredump.h */ | |
47 | #define _h_USER /* avoid including user.h from coredump.h */ | |
48 | #include <uinfo.h> | |
49 | #include <sys/i386/coredump.h> | |
50 | #endif /* _AIX && _I386 */ | |
51 | ||
52 | /* maybe this could work on some other i386 but I have not tried it | |
53 | * mtranle@paris - Tue Sep 24 12:49:35 1991 | |
54 | */ | |
55 | ||
56 | #ifndef COR_MAGIC | |
57 | # define COR_MAGIC "core" | |
58 | #endif | |
59 | ||
60 | /* need this cast because ptr is really void * */ | |
61 | #define core_hdr(bfd) \ | |
62 | (((bfd->tdata.trad_core_data))->hdr) | |
63 | #define core_section(bfd,n) \ | |
64 | (((bfd)->tdata.trad_core_data)->sections[n]) | |
65 | #define core_regsec(bfd) \ | |
66 | (((bfd)->tdata.trad_core_data)->reg_section) | |
67 | #define core_reg2sec(bfd) \ | |
68 | (((bfd)->tdata.trad_core_data)->reg2_section) | |
69 | ||
70 | /* These are stored in the bfd's tdata */ | |
71 | struct trad_core_struct { | |
72 | struct corehdr *hdr; /* core file header */ | |
73 | asection *reg_section; | |
74 | asection *reg2_section; | |
75 | asection *sections[MAX_CORE_SEGS]; | |
76 | }; | |
77 | ||
78 | static bfd_target * | |
79 | DEFUN(aix386_core_file_p,(abfd), | |
80 | bfd *abfd) | |
81 | { | |
82 | int i,n; | |
83 | unsigned char longbuf[4]; /* Raw bytes of various header fields */ | |
84 | int core_size = sizeof (struct corehdr); | |
85 | struct corehdr *core; | |
86 | struct mergem { | |
87 | struct trad_core_struct coredata; | |
88 | struct corehdr internal_core; | |
89 | } *mergem; | |
90 | ||
91 | bfd_error = system_call_error; | |
92 | ||
93 | if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf)) | |
94 | return 0; | |
95 | ||
96 | if (strncmp(longbuf,COR_MAGIC,4)) return 0; | |
97 | ||
98 | if (bfd_seek (abfd, 0L, false) < 0) return 0; | |
99 | ||
100 | mergem = (struct mergem *)bfd_zalloc (abfd, sizeof (struct mergem)); | |
101 | if (mergem == NULL) | |
102 | { | |
103 | bfd_error = no_memory; | |
104 | return 0; | |
105 | } | |
106 | ||
107 | core = &mergem->internal_core; | |
108 | ||
109 | if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size) | |
110 | { | |
111 | bfd_error = system_call_error; | |
112 | bfd_release (abfd, (char *)mergem); | |
113 | return 0; | |
114 | } | |
115 | ||
116 | set_tdata (abfd, &mergem->coredata); | |
117 | core_hdr (abfd) = core; | |
118 | ||
119 | /* create the sections. This is raunchy, but bfd_close wants to reclaim | |
120 | them */ | |
121 | core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection)); | |
122 | if (core_regsec (abfd) == NULL) | |
123 | { | |
124 | loser: | |
125 | bfd_error = no_memory; | |
126 | bfd_release (abfd, (char *)mergem); | |
127 | return 0; | |
128 | } | |
129 | core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection)); | |
130 | if (core_reg2sec (abfd) == NULL) | |
131 | { | |
132 | loser1: | |
133 | bfd_release (abfd, core_regsec (abfd)); | |
134 | goto loser; | |
135 | } | |
136 | ||
137 | for (i=0, n=0 ; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type) ; i++) | |
138 | { | |
139 | if (core->cd_segs[i].cs_offset == 0) | |
140 | continue; | |
141 | core_section (abfd,n) = | |
142 | (asection *) bfd_zalloc (abfd, sizeof (asection)); | |
143 | if (core_section (abfd,n) == NULL) | |
144 | { | |
145 | int j; | |
146 | if (n > 0) | |
147 | { | |
148 | for (j=0; j < n; j++) | |
149 | bfd_release (abfd, core_section(abfd, j)); | |
150 | } | |
151 | bfd_release (abfd, (char *)mergem); | |
152 | goto loser1; | |
153 | } | |
154 | ||
155 | switch (core->cd_segs[i].cs_type) | |
156 | { | |
157 | case COR_TYPE_DATA: | |
158 | core_section (abfd, n)->name = ".data"; | |
159 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD + | |
160 | SEC_HAS_CONTENTS); | |
161 | break; | |
162 | case COR_TYPE_STACK: | |
163 | core_section (abfd, n)->name = ".stack"; | |
164 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD + | |
165 | SEC_HAS_CONTENTS); | |
166 | break; | |
167 | case COR_TYPE_LIBDATA: | |
168 | core_section (abfd, n)->name = ".libdata"; | |
169 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS); | |
170 | break; | |
171 | case COR_TYPE_WRITE: | |
172 | core_section (abfd, n)->name = ".writeable"; | |
173 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS); | |
174 | break; | |
175 | case COR_TYPE_MSC: | |
176 | core_section (abfd, n)->name = ".misc"; | |
177 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS); | |
178 | break; | |
179 | default: | |
180 | core_section (abfd, n)->name = ".unknown"; | |
181 | core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS); | |
182 | break; | |
183 | } | |
184 | core_section (abfd, n)->_raw_size = core->cd_segs[i].cs_len; | |
185 | core_section (abfd, n)->vma = core->cd_segs[i].cs_address; | |
186 | core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset; | |
187 | core_section (abfd, n)->alignment_power = 2; | |
188 | core_section (abfd, n)->next = NULL; | |
189 | if (n > 0) | |
190 | core_section (abfd, (n-1))->next = core_section (abfd, n); | |
191 | ||
192 | abfd->section_count = ++n; | |
193 | } | |
194 | ||
195 | core_regsec (abfd)->name = ".reg"; | |
196 | core_reg2sec (abfd)->name = ".reg2"; | |
197 | ||
198 | core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
199 | core_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
200 | ||
201 | core_regsec (abfd)->_raw_size = sizeof(core->cd_regs); | |
202 | core_reg2sec (abfd)->_raw_size = sizeof(core->cd_fpregs); | |
203 | ||
204 | core_regsec (abfd)->vma = -1; | |
205 | core_reg2sec (abfd)->vma = -1; | |
206 | ||
207 | /* We'll access the regs afresh in the core file, like any section: */ | |
208 | core_regsec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,cd_regs[0]); | |
209 | core_reg2sec (abfd)->filepos = (file_ptr)offsetof(struct corehdr, | |
210 | cd_fpregs); | |
211 | ||
212 | /* add the 2 reg fake sections to abfd */ | |
213 | abfd->section_count += 2; | |
214 | abfd->sections = core_regsec (abfd); | |
215 | core_regsec (abfd)->next = core_reg2sec (abfd); | |
216 | core_reg2sec (abfd)->next = core_section (abfd, 0); | |
217 | ||
218 | return abfd->xvec; | |
219 | } | |
220 | ||
221 | static char * | |
222 | DEFUN(aix386_core_file_failing_command,(abfd), | |
223 | bfd *abfd) | |
224 | { | |
225 | return core_hdr (abfd)->cd_comm; | |
226 | } | |
227 | ||
228 | static int | |
229 | DEFUN(aix386_core_file_failing_signal,(abfd), | |
230 | bfd *abfd) | |
231 | { | |
232 | return core_hdr (abfd)->cd_cursig; | |
233 | } | |
234 | ||
235 | static boolean | |
236 | DEFUN(aix386_core_file_matches_executable_p, (core_bfd, exec_bfd), | |
237 | bfd *core_bfd AND | |
238 | bfd *exec_bfd) | |
239 | { | |
240 | return true; /* FIXME, We have no way of telling at this | |
241 | point */ | |
242 | } | |
243 | ||
244 | /* No archive file support via this BFD */ | |
245 | #define aix386_openr_next_archived_file bfd_generic_openr_next_archived_file | |
246 | #define aix386_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
247 | #define aix386_slurp_armap bfd_false | |
248 | #define aix386_slurp_extended_name_table bfd_true | |
249 | #define aix386_write_armap (PROTO (boolean, (*), \ | |
250 | (bfd *arch, unsigned int elength, struct orl *map, \ | |
251 | unsigned int orl_count, int stridx))) bfd_false | |
252 | #define aix386_truncate_arname bfd_dont_truncate_arname | |
253 | ||
254 | #define aix386_close_and_cleanup bfd_generic_close_and_cleanup | |
255 | #define aix386_set_section_contents (PROTO(boolean, (*), \ | |
256 | (bfd *abfd, asection *section, PTR data, file_ptr offset, \ | |
257 | bfd_size_type count))) bfd_false | |
258 | #define aix386_get_section_contents bfd_generic_get_section_contents | |
259 | #define aix386_new_section_hook (PROTO (boolean, (*), \ | |
260 | (bfd *, sec_ptr))) bfd_true | |
261 | #define aix386_get_symtab_upper_bound bfd_0u | |
262 | #define aix386_get_symtab (PROTO (unsigned int, (*), \ | |
263 | (bfd *, struct symbol_cache_entry **))) bfd_0u | |
264 | #define aix386_get_reloc_upper_bound (PROTO (unsigned int, (*), \ | |
265 | (bfd *, sec_ptr))) bfd_0u | |
266 | #define aix386_canonicalize_reloc (PROTO (unsigned int, (*), \ | |
267 | (bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u | |
268 | #define aix386_make_empty_symbol (PROTO ( \ | |
269 | struct symbol_cache_entry *, (*), (bfd *))) bfd_false | |
270 | #define aix386_print_symbol (PROTO (void, (*), \ | |
271 | (bfd *, PTR, struct symbol_cache_entry *, \ | |
272 | bfd_print_symbol_type))) bfd_false | |
273 | #define aix386_get_symbol_info (PROTO (void, (*), \ | |
274 | (bfd *, struct symbol_cache_entry *, \ | |
275 | symbol_info *))) bfd_false | |
276 | #define aix386_get_lineno (PROTO (alent *, (*), \ | |
277 | (bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr | |
278 | #define aix386_set_arch_mach (PROTO (boolean, (*), \ | |
279 | (bfd *, enum bfd_architecture, unsigned long))) bfd_false | |
280 | #define aix386_find_nearest_line (PROTO (boolean, (*), \ | |
281 | (bfd *abfd, struct sec *section, \ | |
282 | struct symbol_cache_entry **symbols,bfd_vma offset, \ | |
283 | CONST char **file, CONST char **func, unsigned int *line))) bfd_false | |
284 | #define aix386_sizeof_headers (PROTO (int, (*), \ | |
285 | (bfd *, boolean))) bfd_0 | |
286 | ||
287 | #define aix386_bfd_debug_info_start bfd_void | |
288 | #define aix386_bfd_debug_info_end bfd_void | |
289 | #define aix386_bfd_debug_info_accumulate (PROTO (void, (*), \ | |
290 | (bfd *, struct sec *))) bfd_void | |
291 | #define aix386_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents | |
292 | #define aix386_bfd_relax_section bfd_generic_relax_section | |
29c4b8be KR |
293 | #define aix386_bfd_reloc_type_lookup \ |
294 | ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr) | |
295 | #define aix386_bfd_make_debug_symbol \ | |
296 | ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr) | |
4c3721d5 ILT |
297 | #define aix386_bfd_link_hash_table_create \ |
298 | ((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr) | |
299 | #define aix386_bfd_link_add_symbols \ | |
300 | ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false) | |
301 | #define aix386_bfd_final_link \ | |
302 | ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false) | |
29c4b8be KR |
303 | |
304 | /* If somebody calls any byte-swapping routines, shoot them. */ | |
305 | void | |
306 | swap_abort() | |
307 | { | |
308 | abort(); /* This way doesn't require any declaration for ANSI to fuck up */ | |
309 | } | |
310 | #define NO_GET ((PROTO(bfd_vma, (*), ( bfd_byte *))) swap_abort ) | |
311 | #define NO_GETS ((PROTO(bfd_signed_vma, (*), ( bfd_byte *))) swap_abort ) | |
312 | #define NO_PUT ((PROTO(void, (*), (bfd_vma, bfd_byte *))) swap_abort ) | |
313 | ||
314 | bfd_target aix386_core_vec = | |
315 | { | |
316 | "aix386-core", | |
317 | bfd_target_unknown_flavour, | |
318 | true, /* target byte order */ | |
319 | true, /* target headers byte order */ | |
320 | (HAS_RELOC | EXEC_P | /* object flags */ | |
321 | HAS_LINENO | HAS_DEBUG | | |
322 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
323 | ||
324 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
325 | 0, /* leading underscore */ | |
326 | ' ', /* ar_pad_char */ | |
327 | 16, /* ar_max_namelen */ | |
328 | 3, /* minimum alignment power */ | |
329 | NO_GET, NO_GETS, NO_PUT, | |
330 | NO_GET, NO_GETS, NO_PUT, | |
331 | NO_GET, NO_GETS, NO_PUT, /* data */ | |
332 | NO_GET, NO_GETS, NO_PUT, | |
333 | NO_GET, NO_GETS, NO_PUT, | |
334 | NO_GET, NO_GETS, NO_PUT, /* hdrs */ | |
335 | ||
336 | {_bfd_dummy_target, _bfd_dummy_target, | |
337 | _bfd_dummy_target, aix386_core_file_p}, | |
338 | {bfd_false, bfd_false, /* bfd_create_object */ | |
339 | bfd_false, bfd_false}, | |
340 | {bfd_false, bfd_false, /* bfd_write_contents */ | |
341 | bfd_false, bfd_false}, | |
342 | ||
343 | JUMP_TABLE(aix386), | |
344 | (PTR) 0 | |
345 | }; |