Commit | Line | Data |
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1f29e30b | 1 | /* BFD semi-generic back-end for a.out binaries. |
9783e04a | 2 | Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. |
88dfcd68 | 3 | Written by Cygnus Support. |
7ed4093a | 4 | |
88dfcd68 | 5 | This file is part of BFD, the Binary File Descriptor library. |
7ed4093a | 6 | |
88dfcd68 | 7 | This program is free software; you can redistribute it and/or modify |
7ed4093a | 8 | it under the terms of the GNU General Public License as published by |
88dfcd68 SC |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
7ed4093a | 11 | |
88dfcd68 | 12 | This program is distributed in the hope that it will be useful, |
7ed4093a SC |
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
88dfcd68 SC |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
7ed4093a | 20 | |
4e41b5aa SC |
21 | /* |
22 | SECTION | |
23 | a.out backends | |
6f715d66 | 24 | |
6f715d66 | 25 | |
4e41b5aa | 26 | DESCRIPTION |
6f715d66 | 27 | |
4e41b5aa SC |
28 | BFD supports a number of different flavours of a.out format, |
29 | though the major differences are only the sizes of the | |
30 | structures on disk, and the shape of the relocation | |
c188b0be | 31 | information. |
6f715d66 | 32 | |
c188b0be | 33 | The support is split into a basic support file @file{aoutx.h} |
4e41b5aa | 34 | and other files which derive functions from the base. One |
c188b0be | 35 | derivation file is @file{aoutf1.h} (for a.out flavour 1), and |
4e41b5aa SC |
36 | adds to the basic a.out functions support for sun3, sun4, 386 |
37 | and 29k a.out files, to create a target jump vector for a | |
c188b0be | 38 | specific target. |
6f715d66 | 39 | |
4e41b5aa | 40 | This information is further split out into more specific files |
c188b0be DM |
41 | for each machine, including @file{sunos.c} for sun3 and sun4, |
42 | @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a | |
4e41b5aa SC |
43 | demonstration of a 64 bit a.out format. |
44 | ||
c188b0be DM |
45 | The base file @file{aoutx.h} defines general mechanisms for |
46 | reading and writing records to and from disk and various | |
4e41b5aa | 47 | other methods which BFD requires. It is included by |
c188b0be DM |
48 | @file{aout32.c} and @file{aout64.c} to form the names |
49 | <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc. | |
4e41b5aa SC |
50 | |
51 | As an example, this is what goes on to make the back end for a | |
c188b0be | 52 | sun4, from @file{aout32.c}: |
4e41b5aa | 53 | |
3f7607af PB |
54 | | #define ARCH_SIZE 32 |
55 | | #include "aoutx.h" | |
4e41b5aa SC |
56 | |
57 | Which exports names: | |
58 | ||
3f7607af PB |
59 | | ... |
60 | | aout_32_canonicalize_reloc | |
61 | | aout_32_find_nearest_line | |
62 | | aout_32_get_lineno | |
63 | | aout_32_get_reloc_upper_bound | |
64 | | ... | |
6f715d66 | 65 | |
c188b0be | 66 | from @file{sunos.c}: |
4e41b5aa | 67 | |
3f7607af PB |
68 | | #define ARCH 32 |
69 | | #define TARGET_NAME "a.out-sunos-big" | |
70 | | #define VECNAME sunos_big_vec | |
71 | | #include "aoutf1.h" | |
4e41b5aa | 72 | |
c188b0be | 73 | requires all the names from @file{aout32.c}, and produces the jump vector |
6f715d66 | 74 | |
3f7607af | 75 | | sunos_big_vec |
c6705697 | 76 | |
c188b0be | 77 | The file @file{host-aout.c} is a special case. It is for a large set |
4e41b5aa SC |
78 | of hosts that use ``more or less standard'' a.out files, and |
79 | for which cross-debugging is not interesting. It uses the | |
80 | standard 32-bit a.out support routines, but determines the | |
81 | file offsets and addresses of the text, data, and BSS | |
82 | sections, the machine architecture and machine type, and the | |
83 | entry point address, in a host-dependent manner. Once these | |
84 | values have been determined, generic code is used to handle | |
c188b0be | 85 | the object file. |
c6705697 | 86 | |
4e41b5aa SC |
87 | When porting it to run on a new system, you must supply: |
88 | ||
3f7607af PB |
89 | | HOST_PAGE_SIZE |
90 | | HOST_SEGMENT_SIZE | |
91 | | HOST_MACHINE_ARCH (optional) | |
92 | | HOST_MACHINE_MACHINE (optional) | |
93 | | HOST_TEXT_START_ADDR | |
94 | | HOST_STACK_END_ADDR | |
c6705697 | 95 | |
4c3721d5 ILT |
96 | in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These |
97 | values, plus the structures and macros defined in @file{a.out.h} on | |
4e41b5aa SC |
98 | your host system, will produce a BFD target that will access |
99 | ordinary a.out files on your host. To configure a new machine | |
4c3721d5 | 100 | to use @file{host-aout.c}, specify: |
c6705697 | 101 | |
3f7607af PB |
102 | | TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec |
103 | | TDEPFILES= host-aout.o trad-core.o | |
c6705697 | 104 | |
4c3721d5 ILT |
105 | in the @file{config/@var{XXX}.mt} file, and modify @file{configure.in} |
106 | to use the | |
107 | @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your | |
4e41b5aa | 108 | configuration is selected. |
c6705697 | 109 | |
6f715d66 SC |
110 | */ |
111 | ||
ce07dd7c KR |
112 | /* Some assumptions: |
113 | * Any BFD with D_PAGED set is ZMAGIC, and vice versa. | |
114 | Doesn't matter what the setting of WP_TEXT is on output, but it'll | |
115 | get set on input. | |
116 | * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC. | |
117 | * Any BFD with both flags clear is OMAGIC. | |
118 | (Just want to make these explicit, so the conditions tested in this | |
119 | file make sense if you're more familiar with a.out than with BFD.) */ | |
120 | ||
c618de01 SC |
121 | #define KEEPIT flags |
122 | #define KEEPITTYPE int | |
67c060c3 | 123 | |
a99c3d70 | 124 | #include <string.h> /* For strchr and friends */ |
67c060c3 | 125 | #include "bfd.h" |
7ed4093a | 126 | #include <sysdep.h> |
4c3721d5 | 127 | #include "bfdlink.h" |
7ed4093a | 128 | |
6f715d66 | 129 | #include "libaout.h" |
7ed4093a | 130 | #include "libbfd.h" |
c3eb25fc SC |
131 | #include "aout/aout64.h" |
132 | #include "aout/stab_gnu.h" | |
133 | #include "aout/ar.h" | |
7ed4093a | 134 | |
5c8444f8 | 135 | static boolean aout_get_external_symbols PARAMS ((bfd *)); |
4298e311 ILT |
136 | static boolean translate_from_native_sym_flags |
137 | PARAMS ((bfd *, aout_symbol_type *)); | |
138 | static boolean translate_to_native_sym_flags | |
139 | PARAMS ((bfd *, asymbol *, struct external_nlist *)); | |
0ee75d02 | 140 | |
4e41b5aa SC |
141 | /* |
142 | SUBSECTION | |
4c3721d5 | 143 | Relocations |
4e41b5aa SC |
144 | |
145 | DESCRIPTION | |
c188b0be | 146 | The file @file{aoutx.h} provides for both the @emph{standard} |
4e41b5aa SC |
147 | and @emph{extended} forms of a.out relocation records. |
148 | ||
c188b0be DM |
149 | The standard records contain only an |
150 | address, a symbol index, and a type field. The extended records | |
4e41b5aa | 151 | (used on 29ks and sparcs) also have a full integer for an |
c188b0be | 152 | addend. |
7ed4093a | 153 | |
6f715d66 | 154 | */ |
7ed4093a | 155 | #define CTOR_TABLE_RELOC_IDX 2 |
67c060c3 | 156 | |
ce07dd7c KR |
157 | #define howto_table_ext NAME(aout,ext_howto_table) |
158 | #define howto_table_std NAME(aout,std_howto_table) | |
67c060c3 | 159 | |
c188b0be | 160 | reloc_howto_type howto_table_ext[] = |
7ed4093a | 161 | { |
4c3721d5 | 162 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
2e235c93 ILT |
163 | HOWTO(RELOC_8, 0, 0, 8, false, 0, complain_overflow_bitfield,0,"8", false, 0,0x000000ff, false), |
164 | HOWTO(RELOC_16, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"16", false, 0,0x0000ffff, false), | |
165 | HOWTO(RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"32", false, 0,0xffffffff, false), | |
166 | HOWTO(RELOC_DISP8, 0, 0, 8, true, 0, complain_overflow_signed,0,"DISP8", false, 0,0x000000ff, false), | |
167 | HOWTO(RELOC_DISP16, 0, 1, 16, true, 0, complain_overflow_signed,0,"DISP16", false, 0,0x0000ffff, false), | |
168 | HOWTO(RELOC_DISP32, 0, 2, 32, true, 0, complain_overflow_signed,0,"DISP32", false, 0,0xffffffff, false), | |
169 | HOWTO(RELOC_WDISP30,2, 2, 30, true, 0, complain_overflow_signed,0,"WDISP30", false, 0,0x3fffffff, false), | |
170 | HOWTO(RELOC_WDISP22,2, 2, 22, true, 0, complain_overflow_signed,0,"WDISP22", false, 0,0x003fffff, false), | |
171 | HOWTO(RELOC_HI22, 10, 2, 22, false, 0, complain_overflow_bitfield,0,"HI22", false, 0,0x003fffff, false), | |
172 | HOWTO(RELOC_22, 0, 2, 22, false, 0, complain_overflow_bitfield,0,"22", false, 0,0x003fffff, false), | |
173 | HOWTO(RELOC_13, 0, 2, 13, false, 0, complain_overflow_bitfield,0,"13", false, 0,0x00001fff, false), | |
174 | HOWTO(RELOC_LO10, 0, 2, 10, false, 0, complain_overflow_dont,0,"LO10", false, 0,0x000003ff, false), | |
175 | HOWTO(RELOC_SFA_BASE,0, 2, 32, false, 0, complain_overflow_bitfield,0,"SFA_BASE", false, 0,0xffffffff, false), | |
176 | HOWTO(RELOC_SFA_OFF13,0,2, 32, false, 0, complain_overflow_bitfield,0,"SFA_OFF13",false, 0,0xffffffff, false), | |
177 | HOWTO(RELOC_BASE10, 0, 2, 16, false, 0, complain_overflow_bitfield,0,"BASE10", false, 0,0x0000ffff, false), | |
178 | HOWTO(RELOC_BASE13, 0, 2, 13, false, 0, complain_overflow_bitfield,0,"BASE13", false, 0,0x00001fff, false), | |
179 | HOWTO(RELOC_BASE22, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"BASE22", false, 0,0x00000000, false), | |
180 | HOWTO(RELOC_PC10, 0, 2, 10, false, 0, complain_overflow_bitfield,0,"PC10", false, 0,0x000003ff, false), | |
181 | HOWTO(RELOC_PC22, 0, 2, 22, false, 0, complain_overflow_bitfield,0,"PC22", false, 0,0x003fffff, false), | |
182 | HOWTO(RELOC_JMP_TBL,0, 2, 32, false, 0, complain_overflow_bitfield,0,"JMP_TBL", false, 0,0xffffffff, false), | |
183 | HOWTO(RELOC_SEGOFF16,0, 2, 0, false, 0, complain_overflow_bitfield,0,"SEGOFF16", false, 0,0x00000000, false), | |
184 | HOWTO(RELOC_GLOB_DAT,0, 2, 0, false, 0, complain_overflow_bitfield,0,"GLOB_DAT", false, 0,0x00000000, false), | |
185 | HOWTO(RELOC_JMP_SLOT,0, 2, 0, false, 0, complain_overflow_bitfield,0,"JMP_SLOT", false, 0,0x00000000, false), | |
186 | HOWTO(RELOC_RELATIVE,0, 2, 0, false, 0, complain_overflow_bitfield,0,"RELATIVE", false, 0,0x00000000, false), | |
7ed4093a SC |
187 | }; |
188 | ||
189 | /* Convert standard reloc records to "arelent" format (incl byte swap). */ | |
190 | ||
ce07dd7c | 191 | reloc_howto_type howto_table_std[] = { |
4c3721d5 | 192 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ |
c188b0be | 193 | HOWTO( 0, 0, 0, 8, false, 0, complain_overflow_bitfield,0,"8", true, 0x000000ff,0x000000ff, false), |
2e235c93 ILT |
194 | HOWTO( 1, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"16", true, 0x0000ffff,0x0000ffff, false), |
195 | HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"32", true, 0xffffffff,0xffffffff, false), | |
c188b0be DM |
196 | HOWTO( 3, 0, 4, 64, false, 0, complain_overflow_bitfield,0,"64", true, 0xdeaddead,0xdeaddead, false), |
197 | HOWTO( 4, 0, 0, 8, true, 0, complain_overflow_signed, 0,"DISP8", true, 0x000000ff,0x000000ff, false), | |
198 | HOWTO( 5, 0, 1, 16, true, 0, complain_overflow_signed, 0,"DISP16", true, 0x0000ffff,0x0000ffff, false), | |
199 | HOWTO( 6, 0, 2, 32, true, 0, complain_overflow_signed, 0,"DISP32", true, 0xffffffff,0xffffffff, false), | |
200 | HOWTO( 7, 0, 4, 64, true, 0, complain_overflow_signed, 0,"DISP64", true, 0xfeedface,0xfeedface, false), | |
201 | { -1 }, | |
202 | HOWTO( 9, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"BASE16", false,0xffffffff,0xffffffff, false), | |
203 | HOWTO(10, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"BASE32", false,0xffffffff,0xffffffff, false), | |
cb9461ff JK |
204 | { -1 }, |
205 | { -1 }, | |
206 | { -1 }, | |
207 | { -1 }, | |
208 | { -1 }, | |
209 | HOWTO(16, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"JMP_TABLE", false, 0,0x00000000, false), | |
210 | { -1 }, | |
211 | { -1 }, | |
212 | { -1 }, | |
213 | { -1 }, | |
214 | { -1 }, | |
215 | { -1 }, | |
216 | { -1 }, | |
217 | { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, | |
218 | HOWTO(32, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"RELATIVE", false, 0,0x00000000, false), | |
219 | { -1 }, | |
220 | { -1 }, | |
221 | { -1 }, | |
222 | { -1 }, | |
223 | { -1 }, | |
224 | { -1 }, | |
225 | { -1 }, | |
226 | HOWTO(40, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"BASEREL", false, 0,0x00000000, false), | |
7ed4093a SC |
227 | }; |
228 | ||
c188b0be DM |
229 | #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) |
230 | ||
214f8f23 | 231 | CONST struct reloc_howto_struct * |
8eb5d4be JK |
232 | NAME(aout,reloc_type_lookup) (abfd,code) |
233 | bfd *abfd; | |
234 | bfd_reloc_code_real_type code; | |
214f8f23 KR |
235 | { |
236 | #define EXT(i,j) case i: return &howto_table_ext[j] | |
237 | #define STD(i,j) case i: return &howto_table_std[j] | |
238 | int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE; | |
239 | if (code == BFD_RELOC_CTOR) | |
240 | switch (bfd_get_arch_info (abfd)->bits_per_address) | |
241 | { | |
242 | case 32: | |
243 | code = BFD_RELOC_32; | |
244 | break; | |
ec099b4b ILT |
245 | case 64: |
246 | code = BFD_RELOC_64; | |
247 | break; | |
214f8f23 KR |
248 | } |
249 | if (ext) | |
250 | switch (code) | |
251 | { | |
252 | EXT (BFD_RELOC_32, 2); | |
253 | EXT (BFD_RELOC_HI22, 8); | |
254 | EXT (BFD_RELOC_LO10, 11); | |
255 | EXT (BFD_RELOC_32_PCREL_S2, 6); | |
c188b0be | 256 | EXT (BFD_RELOC_SPARC_WDISP22, 7); |
ec099b4b ILT |
257 | EXT (BFD_RELOC_SPARC13, 10); |
258 | EXT (BFD_RELOC_SPARC_BASE13, 15); | |
a99c3d70 | 259 | default: return (CONST struct reloc_howto_struct *) 0; |
214f8f23 KR |
260 | } |
261 | else | |
262 | /* std relocs */ | |
263 | switch (code) | |
264 | { | |
265 | STD (BFD_RELOC_16, 1); | |
266 | STD (BFD_RELOC_32, 2); | |
267 | STD (BFD_RELOC_8_PCREL, 4); | |
268 | STD (BFD_RELOC_16_PCREL, 5); | |
269 | STD (BFD_RELOC_32_PCREL, 6); | |
c188b0be DM |
270 | STD (BFD_RELOC_16_BASEREL, 9); |
271 | STD (BFD_RELOC_32_BASEREL, 10); | |
a99c3d70 | 272 | default: return (CONST struct reloc_howto_struct *) 0; |
214f8f23 | 273 | } |
214f8f23 | 274 | } |
7ed4093a | 275 | |
4e41b5aa SC |
276 | /* |
277 | SUBSECTION | |
4c3721d5 | 278 | Internal entry points |
4e41b5aa SC |
279 | |
280 | DESCRIPTION | |
c188b0be | 281 | @file{aoutx.h} exports several routines for accessing the |
4e41b5aa SC |
282 | contents of an a.out file, which are gathered and exported in |
283 | turn by various format specific files (eg sunos.c). | |
284 | ||
6f715d66 SC |
285 | */ |
286 | ||
4e41b5aa SC |
287 | /* |
288 | FUNCTION | |
c188b0be | 289 | aout_@var{size}_swap_exec_header_in |
4e41b5aa | 290 | |
fa2b89f1 | 291 | SYNOPSIS |
c188b0be | 292 | void aout_@var{size}_swap_exec_header_in, |
4e41b5aa SC |
293 | (bfd *abfd, |
294 | struct external_exec *raw_bytes, | |
295 | struct internal_exec *execp); | |
c188b0be DM |
296 | |
297 | DESCRIPTION | |
298 | Swap the information in an executable header @var{raw_bytes} taken | |
299 | from a raw byte stream memory image into the internal exec header | |
300 | structure @var{execp}. | |
6f715d66 | 301 | */ |
c188b0be | 302 | |
34dd8ba3 | 303 | #ifndef NAME_swap_exec_header_in |
7ed4093a | 304 | void |
8eb5d4be JK |
305 | NAME(aout,swap_exec_header_in) (abfd, raw_bytes, execp) |
306 | bfd *abfd; | |
307 | struct external_exec *raw_bytes; | |
308 | struct internal_exec *execp; | |
7ed4093a SC |
309 | { |
310 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
311 | ||
55c0061e FF |
312 | /* The internal_exec structure has some fields that are unused in this |
313 | configuration (IE for i960), so ensure that all such uninitialized | |
314 | fields are zero'd out. There are places where two of these structs | |
315 | are memcmp'd, and thus the contents do matter. */ | |
68241b2b | 316 | memset ((PTR) execp, 0, sizeof (struct internal_exec)); |
7ed4093a SC |
317 | /* Now fill in fields in the execp, from the bytes in the raw data. */ |
318 | execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); | |
319 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
320 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
321 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
322 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
323 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
324 | execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); | |
325 | execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); | |
326 | } | |
34dd8ba3 JG |
327 | #define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in) |
328 | #endif | |
7ed4093a | 329 | |
4e41b5aa SC |
330 | /* |
331 | FUNCTION | |
c188b0be | 332 | aout_@var{size}_swap_exec_header_out |
4e41b5aa | 333 | |
fa2b89f1 | 334 | SYNOPSIS |
c188b0be | 335 | void aout_@var{size}_swap_exec_header_out |
6f715d66 SC |
336 | (bfd *abfd, |
337 | struct internal_exec *execp, | |
4e41b5aa | 338 | struct external_exec *raw_bytes); |
c188b0be DM |
339 | |
340 | DESCRIPTION | |
341 | Swap the information in an internal exec header structure | |
342 | @var{execp} into the buffer @var{raw_bytes} ready for writing to disk. | |
6f715d66 | 343 | */ |
7ed4093a | 344 | void |
8eb5d4be JK |
345 | NAME(aout,swap_exec_header_out) (abfd, execp, raw_bytes) |
346 | bfd *abfd; | |
347 | struct internal_exec *execp; | |
348 | struct external_exec *raw_bytes; | |
7ed4093a SC |
349 | { |
350 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
351 | ||
352 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ | |
353 | bfd_h_put_32 (abfd, execp->a_info , bytes->e_info); | |
354 | PUT_WORD (abfd, execp->a_text , bytes->e_text); | |
355 | PUT_WORD (abfd, execp->a_data , bytes->e_data); | |
356 | PUT_WORD (abfd, execp->a_bss , bytes->e_bss); | |
357 | PUT_WORD (abfd, execp->a_syms , bytes->e_syms); | |
358 | PUT_WORD (abfd, execp->a_entry , bytes->e_entry); | |
359 | PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize); | |
360 | PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize); | |
361 | } | |
362 | ||
ec6b18c4 | 363 | /* Make all the section for an a.out file. */ |
7ed4093a | 364 | |
ec6b18c4 ILT |
365 | boolean |
366 | NAME(aout,make_sections) (abfd) | |
367 | bfd *abfd; | |
368 | { | |
369 | if (obj_textsec (abfd) == (asection *) NULL | |
370 | && bfd_make_section (abfd, ".text") == (asection *) NULL) | |
371 | return false; | |
372 | if (obj_datasec (abfd) == (asection *) NULL | |
373 | && bfd_make_section (abfd, ".data") == (asection *) NULL) | |
374 | return false; | |
375 | if (obj_bsssec (abfd) == (asection *) NULL | |
376 | && bfd_make_section (abfd, ".bss") == (asection *) NULL) | |
377 | return false; | |
378 | return true; | |
379 | } | |
6f715d66 | 380 | |
4e41b5aa SC |
381 | /* |
382 | FUNCTION | |
c188b0be | 383 | aout_@var{size}_some_aout_object_p |
6f715d66 | 384 | |
fa2b89f1 | 385 | SYNOPSIS |
2f3508ad | 386 | const bfd_target *aout_@var{size}_some_aout_object_p |
6f715d66 | 387 | (bfd *abfd, |
2f3508ad | 388 | const bfd_target *(*callback_to_real_object_p)()); |
c188b0be DM |
389 | |
390 | DESCRIPTION | |
391 | Some a.out variant thinks that the file open in @var{abfd} | |
392 | checking is an a.out file. Do some more checking, and set up | |
393 | for access if it really is. Call back to the calling | |
394 | environment's "finish up" function just before returning, to | |
395 | handle any last-minute setup. | |
6f715d66 | 396 | */ |
c188b0be | 397 | |
2f3508ad | 398 | const bfd_target * |
8eb5d4be JK |
399 | NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p) |
400 | bfd *abfd; | |
401 | struct internal_exec *execp; | |
2f3508ad | 402 | const bfd_target *(*callback_to_real_object_p) PARAMS ((bfd *)); |
7ed4093a | 403 | { |
214f8f23 | 404 | struct aout_data_struct *rawptr, *oldrawptr; |
2f3508ad | 405 | const bfd_target *result; |
7ed4093a | 406 | |
6db82ea7 | 407 | rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (struct aout_data_struct )); |
7ed4093a | 408 | if (rawptr == NULL) { |
68241b2b | 409 | bfd_set_error (bfd_error_no_memory); |
7ed4093a SC |
410 | return 0; |
411 | } | |
412 | ||
214f8f23 | 413 | oldrawptr = abfd->tdata.aout_data; |
6db82ea7 | 414 | abfd->tdata.aout_data = rawptr; |
ebd24135 ILT |
415 | |
416 | /* Copy the contents of the old tdata struct. | |
417 | In particular, we want the subformat, since for hpux it was set in | |
418 | hp300hpux.c:swap_exec_header_in and will be used in | |
419 | hp300hpux.c:callback. */ | |
420 | if (oldrawptr != NULL) | |
421 | *abfd->tdata.aout_data = *oldrawptr; | |
422 | ||
6db82ea7 SC |
423 | abfd->tdata.aout_data->a.hdr = &rawptr->e; |
424 | *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct */ | |
425 | execp = abfd->tdata.aout_data->a.hdr; | |
7ed4093a SC |
426 | |
427 | /* Set the file flags */ | |
428 | abfd->flags = NO_FLAGS; | |
429 | if (execp->a_drsize || execp->a_trsize) | |
430 | abfd->flags |= HAS_RELOC; | |
e6e265ce | 431 | /* Setting of EXEC_P has been deferred to the bottom of this function */ |
c188b0be | 432 | if (execp->a_syms) |
7ed4093a | 433 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; |
e68de5d5 ILT |
434 | if (N_DYNAMIC(*execp)) |
435 | abfd->flags |= DYNAMIC; | |
7ed4093a | 436 | |
ce07dd7c KR |
437 | if (N_MAGIC (*execp) == ZMAGIC) |
438 | { | |
f5419a59 ILT |
439 | abfd->flags |= D_PAGED | WP_TEXT; |
440 | adata (abfd).magic = z_magic; | |
441 | } | |
442 | else if (N_MAGIC (*execp) == QMAGIC) | |
443 | { | |
444 | abfd->flags |= D_PAGED | WP_TEXT; | |
445 | adata (abfd).magic = z_magic; | |
446 | adata (abfd).subformat = q_magic_format; | |
ce07dd7c KR |
447 | } |
448 | else if (N_MAGIC (*execp) == NMAGIC) | |
449 | { | |
450 | abfd->flags |= WP_TEXT; | |
f5419a59 | 451 | adata (abfd).magic = n_magic; |
ce07dd7c | 452 | } |
7b024321 ILT |
453 | else if (N_MAGIC (*execp) == OMAGIC |
454 | || N_MAGIC (*execp) == BMAGIC) | |
f5419a59 | 455 | adata (abfd).magic = o_magic; |
ce07dd7c | 456 | else |
f5419a59 ILT |
457 | { |
458 | /* Should have been checked with N_BADMAG before this routine | |
459 | was called. */ | |
460 | abort (); | |
461 | } | |
7ed4093a SC |
462 | |
463 | bfd_get_start_address (abfd) = execp->a_entry; | |
464 | ||
465 | obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; | |
466 | bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist); | |
467 | ||
7ed4093a SC |
468 | /* The default relocation entry size is that of traditional V7 Unix. */ |
469 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
470 | ||
7b02b4ed JG |
471 | /* The default symbol entry size is that of traditional Unix. */ |
472 | obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE; | |
473 | ||
728472f1 ILT |
474 | obj_aout_external_syms (abfd) = NULL; |
475 | obj_aout_external_strings (abfd) = NULL; | |
476 | obj_aout_sym_hashes (abfd) = NULL; | |
477 | ||
ec6b18c4 ILT |
478 | if (! NAME(aout,make_sections) (abfd)) |
479 | return NULL; | |
7ed4093a | 480 | |
6db82ea7 SC |
481 | obj_datasec (abfd)->_raw_size = execp->a_data; |
482 | obj_bsssec (abfd)->_raw_size = execp->a_bss; | |
7ed4093a | 483 | |
0ee75d02 ILT |
484 | /* If this object is dynamically linked, we assume that both |
485 | sections have relocs. This does no real harm, even though it may | |
486 | not be true. */ | |
487 | obj_textsec (abfd)->flags = | |
488 | (execp->a_trsize != 0 || (abfd->flags & DYNAMIC) != 0 | |
489 | ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC) | |
490 | : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)); | |
491 | obj_datasec (abfd)->flags = | |
492 | (execp->a_drsize != 0 || (abfd->flags & DYNAMIC) != 0 | |
493 | ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC) | |
494 | : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS)); | |
7ed4093a SC |
495 | obj_bsssec (abfd)->flags = SEC_ALLOC; |
496 | ||
497 | #ifdef THIS_IS_ONLY_DOCUMENTATION | |
98d43107 JG |
498 | /* The common code can't fill in these things because they depend |
499 | on either the start address of the text segment, the rounding | |
9783e04a | 500 | up of virtual addresses between segments, or the starting file |
98d43107 JG |
501 | position of the text segment -- all of which varies among different |
502 | versions of a.out. */ | |
503 | ||
c188b0be | 504 | /* Call back to the format-dependent code to fill in the rest of the |
7ed4093a SC |
505 | fields and do any further cleanup. Things that should be filled |
506 | in by the callback: */ | |
507 | ||
508 | struct exec *execp = exec_hdr (abfd); | |
509 | ||
98d43107 | 510 | obj_textsec (abfd)->size = N_TXTSIZE(*execp); |
6db82ea7 | 511 | obj_textsec (abfd)->raw_size = N_TXTSIZE(*execp); |
98d43107 JG |
512 | /* data and bss are already filled in since they're so standard */ |
513 | ||
7ed4093a | 514 | /* The virtual memory addresses of the sections */ |
7ed4093a | 515 | obj_textsec (abfd)->vma = N_TXTADDR(*execp); |
98d43107 JG |
516 | obj_datasec (abfd)->vma = N_DATADDR(*execp); |
517 | obj_bsssec (abfd)->vma = N_BSSADDR(*execp); | |
7ed4093a SC |
518 | |
519 | /* The file offsets of the sections */ | |
520 | obj_textsec (abfd)->filepos = N_TXTOFF(*execp); | |
521 | obj_datasec (abfd)->filepos = N_DATOFF(*execp); | |
522 | ||
523 | /* The file offsets of the relocation info */ | |
524 | obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp); | |
525 | obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp); | |
526 | ||
527 | /* The file offsets of the string table and symbol table. */ | |
528 | obj_str_filepos (abfd) = N_STROFF (*execp); | |
529 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
530 | ||
7ed4093a SC |
531 | /* Determine the architecture and machine type of the object file. */ |
532 | switch (N_MACHTYPE (*exec_hdr (abfd))) { | |
533 | default: | |
534 | abfd->obj_arch = bfd_arch_obscure; | |
535 | break; | |
536 | } | |
537 | ||
7b02b4ed JG |
538 | adata(abfd)->page_size = PAGE_SIZE; |
539 | adata(abfd)->segment_size = SEGMENT_SIZE; | |
540 | adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE; | |
541 | ||
7ed4093a SC |
542 | return abfd->xvec; |
543 | ||
544 | /* The architecture is encoded in various ways in various a.out variants, | |
545 | or is not encoded at all in some of them. The relocation size depends | |
546 | on the architecture and the a.out variant. Finally, the return value | |
547 | is the bfd_target vector in use. If an error occurs, return zero and | |
548 | set bfd_error to the appropriate error code. | |
c188b0be | 549 | |
7ed4093a SC |
550 | Formats such as b.out, which have additional fields in the a.out |
551 | header, should cope with them in this callback as well. */ | |
552 | #endif /* DOCUMENTATION */ | |
553 | ||
e6e265ce JG |
554 | result = (*callback_to_real_object_p)(abfd); |
555 | ||
556 | /* Now that the segment addresses have been worked out, take a better | |
557 | guess at whether the file is executable. If the entry point | |
558 | is within the text segment, assume it is. (This makes files | |
559 | executable even if their entry point address is 0, as long as | |
c188b0be | 560 | their text starts at zero.) |
e6e265ce JG |
561 | |
562 | At some point we should probably break down and stat the file and | |
563 | declare it executable if (one of) its 'x' bits are on... */ | |
564 | if ((execp->a_entry >= obj_textsec(abfd)->vma) && | |
6db82ea7 | 565 | (execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size)) |
e6e265ce | 566 | abfd->flags |= EXEC_P; |
214f8f23 KR |
567 | if (result) |
568 | { | |
1f29e30b | 569 | #if 0 /* These should be set correctly anyways. */ |
214f8f23 KR |
570 | abfd->sections = obj_textsec (abfd); |
571 | obj_textsec (abfd)->next = obj_datasec (abfd); | |
572 | obj_datasec (abfd)->next = obj_bsssec (abfd); | |
1f29e30b | 573 | #endif |
214f8f23 KR |
574 | } |
575 | else | |
576 | { | |
577 | free (rawptr); | |
578 | abfd->tdata.aout_data = oldrawptr; | |
579 | } | |
e6e265ce | 580 | return result; |
7ed4093a SC |
581 | } |
582 | ||
4e41b5aa SC |
583 | /* |
584 | FUNCTION | |
c188b0be | 585 | aout_@var{size}_mkobject |
6f715d66 | 586 | |
fa2b89f1 | 587 | SYNOPSIS |
c188b0be DM |
588 | boolean aout_@var{size}_mkobject, (bfd *abfd); |
589 | ||
590 | DESCRIPTION | |
591 | Initialize BFD @var{abfd} for use with a.out files. | |
6f715d66 | 592 | */ |
7ed4093a SC |
593 | |
594 | boolean | |
8eb5d4be JK |
595 | NAME(aout,mkobject) (abfd) |
596 | bfd *abfd; | |
7ed4093a | 597 | { |
6db82ea7 | 598 | struct aout_data_struct *rawptr; |
7ed4093a | 599 | |
68241b2b | 600 | bfd_set_error (bfd_error_system_call); |
7ed4093a SC |
601 | |
602 | /* Use an intermediate variable for clarity */ | |
2e235c93 | 603 | rawptr = (struct aout_data_struct *)bfd_zalloc (abfd, sizeof (struct aout_data_struct )); |
c188b0be | 604 | |
7ed4093a | 605 | if (rawptr == NULL) { |
68241b2b | 606 | bfd_set_error (bfd_error_no_memory); |
7ed4093a SC |
607 | return false; |
608 | } | |
c188b0be | 609 | |
6db82ea7 | 610 | abfd->tdata.aout_data = rawptr; |
7ed4093a | 611 | exec_hdr (abfd) = &(rawptr->e); |
c188b0be | 612 | |
7ed4093a SC |
613 | obj_textsec (abfd) = (asection *)NULL; |
614 | obj_datasec (abfd) = (asection *)NULL; | |
615 | obj_bsssec (abfd) = (asection *)NULL; | |
c188b0be | 616 | |
7ed4093a SC |
617 | return true; |
618 | } | |
619 | ||
6f715d66 | 620 | |
4e41b5aa SC |
621 | /* |
622 | FUNCTION | |
c188b0be DM |
623 | aout_@var{size}_machine_type |
624 | ||
625 | SYNOPSIS | |
626 | enum machine_type aout_@var{size}_machine_type | |
627 | (enum bfd_architecture arch, | |
628 | unsigned long machine)); | |
6f715d66 | 629 | |
4e41b5aa SC |
630 | DESCRIPTION |
631 | Keep track of machine architecture and machine type for | |
c188b0be DM |
632 | a.out's. Return the <<machine_type>> for a particular |
633 | architecture and machine, or <<M_UNKNOWN>> if that exact architecture | |
634 | and machine can't be represented in a.out format. | |
7ed4093a | 635 | |
4e41b5aa | 636 | If the architecture is understood, machine type 0 (default) |
c188b0be | 637 | is always understood. |
6f715d66 | 638 | */ |
7ed4093a SC |
639 | |
640 | enum machine_type | |
9ae74960 | 641 | NAME(aout,machine_type) (arch, machine, unknown) |
8eb5d4be JK |
642 | enum bfd_architecture arch; |
643 | unsigned long machine; | |
9ae74960 | 644 | boolean *unknown; |
7ed4093a SC |
645 | { |
646 | enum machine_type arch_flags; | |
c188b0be | 647 | |
7ed4093a | 648 | arch_flags = M_UNKNOWN; |
9ae74960 | 649 | *unknown = true; |
c188b0be | 650 | |
7ed4093a SC |
651 | switch (arch) { |
652 | case bfd_arch_sparc: | |
653 | if (machine == 0) arch_flags = M_SPARC; | |
654 | break; | |
c188b0be | 655 | |
7ed4093a SC |
656 | case bfd_arch_m68k: |
657 | switch (machine) { | |
658 | case 0: arch_flags = M_68010; break; | |
9ae74960 | 659 | case 68000: arch_flags = M_UNKNOWN; *unknown = false; break; |
7ed4093a SC |
660 | case 68010: arch_flags = M_68010; break; |
661 | case 68020: arch_flags = M_68020; break; | |
662 | default: arch_flags = M_UNKNOWN; break; | |
663 | } | |
664 | break; | |
c188b0be | 665 | |
7ed4093a SC |
666 | case bfd_arch_i386: |
667 | if (machine == 0) arch_flags = M_386; | |
668 | break; | |
c188b0be | 669 | |
7ed4093a SC |
670 | case bfd_arch_a29k: |
671 | if (machine == 0) arch_flags = M_29K; | |
672 | break; | |
c188b0be | 673 | |
5cd3dcff KR |
674 | case bfd_arch_mips: |
675 | switch (machine) { | |
676 | case 0: | |
677 | case 2000: | |
678 | case 3000: arch_flags = M_MIPS1; break; | |
679 | case 4000: | |
680 | case 4400: | |
681 | case 6000: arch_flags = M_MIPS2; break; | |
682 | default: arch_flags = M_UNKNOWN; break; | |
683 | } | |
684 | break; | |
685 | ||
7ed4093a SC |
686 | default: |
687 | arch_flags = M_UNKNOWN; | |
7ed4093a | 688 | } |
9ae74960 ILT |
689 | |
690 | if (arch_flags != M_UNKNOWN) | |
691 | *unknown = false; | |
692 | ||
7ed4093a SC |
693 | return arch_flags; |
694 | } | |
695 | ||
9e2dad8e | 696 | |
4e41b5aa SC |
697 | /* |
698 | FUNCTION | |
c188b0be | 699 | aout_@var{size}_set_arch_mach |
6f715d66 | 700 | |
fa2b89f1 | 701 | SYNOPSIS |
c188b0be | 702 | boolean aout_@var{size}_set_arch_mach, |
6f715d66 | 703 | (bfd *, |
c188b0be | 704 | enum bfd_architecture arch, |
6f715d66 | 705 | unsigned long machine)); |
c188b0be DM |
706 | |
707 | DESCRIPTION | |
708 | Set the architecture and the machine of the BFD @var{abfd} to the | |
709 | values @var{arch} and @var{machine}. Verify that @var{abfd}'s format | |
710 | can support the architecture required. | |
6f715d66 SC |
711 | */ |
712 | ||
7ed4093a | 713 | boolean |
8eb5d4be JK |
714 | NAME(aout,set_arch_mach) (abfd, arch, machine) |
715 | bfd *abfd; | |
716 | enum bfd_architecture arch; | |
717 | unsigned long machine; | |
7ed4093a | 718 | { |
2e235c93 ILT |
719 | if (! bfd_default_set_arch_mach (abfd, arch, machine)) |
720 | return false; | |
721 | ||
9ae74960 ILT |
722 | if (arch != bfd_arch_unknown) |
723 | { | |
724 | boolean unknown; | |
725 | ||
726 | NAME(aout,machine_type) (arch, machine, &unknown); | |
727 | if (unknown) | |
728 | return false; | |
729 | } | |
ce07dd7c | 730 | |
214f8f23 KR |
731 | /* Determine the size of a relocation entry */ |
732 | switch (arch) { | |
733 | case bfd_arch_sparc: | |
734 | case bfd_arch_a29k: | |
5cd3dcff | 735 | case bfd_arch_mips: |
214f8f23 KR |
736 | obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; |
737 | break; | |
738 | default: | |
739 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
740 | break; | |
741 | } | |
742 | ||
2768b3f7 | 743 | return (*aout_backend_info(abfd)->set_sizes) (abfd); |
7ed4093a | 744 | } |
7ed4093a | 745 | |
4c3721d5 ILT |
746 | static void |
747 | adjust_o_magic (abfd, execp) | |
748 | bfd *abfd; | |
749 | struct internal_exec *execp; | |
750 | { | |
751 | file_ptr pos = adata (abfd).exec_bytes_size; | |
752 | bfd_vma vma = 0; | |
753 | int pad = 0; | |
754 | ||
755 | /* Text. */ | |
756 | obj_textsec(abfd)->filepos = pos; | |
757 | pos += obj_textsec(abfd)->_raw_size; | |
758 | vma += obj_textsec(abfd)->_raw_size; | |
759 | ||
760 | /* Data. */ | |
761 | if (!obj_datasec(abfd)->user_set_vma) | |
762 | { | |
763 | #if 0 /* ?? Does alignment in the file image really matter? */ | |
764 | pad = align_power (vma, obj_datasec(abfd)->alignment_power) - vma; | |
765 | #endif | |
766 | obj_textsec(abfd)->_raw_size += pad; | |
767 | pos += pad; | |
768 | vma += pad; | |
769 | obj_datasec(abfd)->vma = vma; | |
770 | } | |
771 | obj_datasec(abfd)->filepos = pos; | |
772 | pos += obj_datasec(abfd)->_raw_size; | |
773 | vma += obj_datasec(abfd)->_raw_size; | |
774 | ||
775 | /* BSS. */ | |
776 | if (!obj_bsssec(abfd)->user_set_vma) | |
777 | { | |
778 | #if 0 | |
779 | pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma; | |
780 | #endif | |
781 | obj_datasec(abfd)->_raw_size += pad; | |
782 | pos += pad; | |
783 | vma += pad; | |
784 | obj_bsssec(abfd)->vma = vma; | |
785 | } | |
786 | obj_bsssec(abfd)->filepos = pos; | |
787 | ||
788 | /* Fix up the exec header. */ | |
789 | execp->a_text = obj_textsec(abfd)->_raw_size; | |
790 | execp->a_data = obj_datasec(abfd)->_raw_size; | |
791 | execp->a_bss = obj_bsssec(abfd)->_raw_size; | |
792 | N_SET_MAGIC (*execp, OMAGIC); | |
793 | } | |
794 | ||
795 | static void | |
796 | adjust_z_magic (abfd, execp) | |
797 | bfd *abfd; | |
798 | struct internal_exec *execp; | |
799 | { | |
800 | bfd_size_type data_pad, text_pad; | |
801 | file_ptr text_end; | |
802 | CONST struct aout_backend_data *abdp; | |
803 | int ztih; /* Nonzero if text includes exec header. */ | |
4c3721d5 ILT |
804 | |
805 | abdp = aout_backend_info (abfd); | |
806 | ||
807 | /* Text. */ | |
0630aba5 ILT |
808 | ztih = (abdp != NULL |
809 | && (abdp->text_includes_header | |
810 | || obj_aout_subformat (abfd) == q_magic_format)); | |
4c3721d5 ILT |
811 | obj_textsec(abfd)->filepos = (ztih |
812 | ? adata(abfd).exec_bytes_size | |
0630aba5 | 813 | : adata(abfd).zmagic_disk_block_size); |
4c3721d5 ILT |
814 | if (! obj_textsec(abfd)->user_set_vma) |
815 | /* ?? Do we really need to check for relocs here? */ | |
816 | obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC) | |
817 | ? 0 | |
818 | : (ztih | |
819 | ? (abdp->default_text_vma | |
820 | + adata(abfd).exec_bytes_size) | |
821 | : abdp->default_text_vma)); | |
822 | /* Could take strange alignment of text section into account here? */ | |
823 | ||
824 | /* Find start of data. */ | |
0630aba5 ILT |
825 | if (ztih) |
826 | { | |
827 | text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->_raw_size; | |
828 | text_pad = BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; | |
829 | } | |
830 | else | |
831 | { | |
832 | /* Note that if page_size == zmagic_disk_block_size, then | |
833 | filepos == page_size, and this case is the same as the ztih | |
834 | case. */ | |
835 | text_end = obj_textsec (abfd)->_raw_size; | |
836 | text_pad = BFD_ALIGN (text_end, adata (abfd).page_size) - text_end; | |
837 | text_end += obj_textsec (abfd)->filepos; | |
838 | } | |
4c3721d5 ILT |
839 | obj_textsec(abfd)->_raw_size += text_pad; |
840 | text_end += text_pad; | |
841 | ||
842 | /* Data. */ | |
843 | if (!obj_datasec(abfd)->user_set_vma) | |
844 | { | |
845 | bfd_vma vma; | |
846 | vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size; | |
847 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); | |
848 | } | |
4c3721d5 ILT |
849 | if (abdp && abdp->zmagic_mapped_contiguous) |
850 | { | |
851 | text_pad = (obj_datasec(abfd)->vma | |
852 | - obj_textsec(abfd)->vma | |
853 | - obj_textsec(abfd)->_raw_size); | |
854 | obj_textsec(abfd)->_raw_size += text_pad; | |
855 | } | |
856 | obj_datasec(abfd)->filepos = (obj_textsec(abfd)->filepos | |
857 | + obj_textsec(abfd)->_raw_size); | |
858 | ||
859 | /* Fix up exec header while we're at it. */ | |
860 | execp->a_text = obj_textsec(abfd)->_raw_size; | |
861 | if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted))) | |
862 | execp->a_text += adata(abfd).exec_bytes_size; | |
f5419a59 ILT |
863 | if (obj_aout_subformat (abfd) == q_magic_format) |
864 | N_SET_MAGIC (*execp, QMAGIC); | |
865 | else | |
866 | N_SET_MAGIC (*execp, ZMAGIC); | |
5330499f | 867 | |
4c3721d5 | 868 | /* Spec says data section should be rounded up to page boundary. */ |
4c3721d5 ILT |
869 | obj_datasec(abfd)->_raw_size |
870 | = align_power (obj_datasec(abfd)->_raw_size, | |
871 | obj_bsssec(abfd)->alignment_power); | |
872 | execp->a_data = BFD_ALIGN (obj_datasec(abfd)->_raw_size, | |
873 | adata(abfd).page_size); | |
874 | data_pad = execp->a_data - obj_datasec(abfd)->_raw_size; | |
875 | ||
876 | /* BSS. */ | |
877 | if (!obj_bsssec(abfd)->user_set_vma) | |
878 | obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma | |
879 | + obj_datasec(abfd)->_raw_size); | |
5330499f DM |
880 | /* If the BSS immediately follows the data section and extra space |
881 | in the page is left after the data section, fudge data | |
882 | in the header so that the bss section looks smaller by that | |
883 | amount. We'll start the bss section there, and lie to the OS. | |
884 | (Note that a linker script, as well as the above assignment, | |
885 | could have explicitly set the BSS vma to immediately follow | |
886 | the data section.) */ | |
887 | if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power) | |
888 | == obj_datasec(abfd)->vma + obj_datasec(abfd)->_raw_size) | |
889 | execp->a_bss = (data_pad > obj_bsssec(abfd)->_raw_size) ? 0 : | |
890 | obj_bsssec(abfd)->_raw_size - data_pad; | |
891 | else | |
892 | execp->a_bss = obj_bsssec(abfd)->_raw_size; | |
4c3721d5 ILT |
893 | } |
894 | ||
895 | static void | |
896 | adjust_n_magic (abfd, execp) | |
897 | bfd *abfd; | |
898 | struct internal_exec *execp; | |
899 | { | |
900 | file_ptr pos = adata(abfd).exec_bytes_size; | |
901 | bfd_vma vma = 0; | |
902 | int pad; | |
903 | ||
904 | /* Text. */ | |
905 | obj_textsec(abfd)->filepos = pos; | |
906 | if (!obj_textsec(abfd)->user_set_vma) | |
907 | obj_textsec(abfd)->vma = vma; | |
908 | else | |
909 | vma = obj_textsec(abfd)->vma; | |
910 | pos += obj_textsec(abfd)->_raw_size; | |
911 | vma += obj_textsec(abfd)->_raw_size; | |
912 | ||
913 | /* Data. */ | |
914 | obj_datasec(abfd)->filepos = pos; | |
915 | if (!obj_datasec(abfd)->user_set_vma) | |
916 | obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size); | |
917 | vma = obj_datasec(abfd)->vma; | |
918 | ||
919 | /* Since BSS follows data immediately, see if it needs alignment. */ | |
920 | vma += obj_datasec(abfd)->_raw_size; | |
921 | pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma; | |
922 | obj_datasec(abfd)->_raw_size += pad; | |
923 | pos += obj_datasec(abfd)->_raw_size; | |
924 | ||
925 | /* BSS. */ | |
926 | if (!obj_bsssec(abfd)->user_set_vma) | |
927 | obj_bsssec(abfd)->vma = vma; | |
928 | else | |
929 | vma = obj_bsssec(abfd)->vma; | |
930 | ||
931 | /* Fix up exec header. */ | |
932 | execp->a_text = obj_textsec(abfd)->_raw_size; | |
933 | execp->a_data = obj_datasec(abfd)->_raw_size; | |
934 | execp->a_bss = obj_bsssec(abfd)->_raw_size; | |
935 | N_SET_MAGIC (*execp, NMAGIC); | |
936 | } | |
937 | ||
ce07dd7c | 938 | boolean |
8eb5d4be JK |
939 | NAME(aout,adjust_sizes_and_vmas) (abfd, text_size, text_end) |
940 | bfd *abfd; | |
941 | bfd_size_type *text_size; | |
942 | file_ptr *text_end; | |
ce07dd7c KR |
943 | { |
944 | struct internal_exec *execp = exec_hdr (abfd); | |
4c3721d5 | 945 | |
ec6b18c4 ILT |
946 | if (! NAME(aout,make_sections) (abfd)) |
947 | return false; | |
948 | ||
f5419a59 ILT |
949 | if (adata(abfd).magic != undecided_magic) |
950 | return true; | |
4c3721d5 | 951 | |
c188b0be | 952 | obj_textsec(abfd)->_raw_size = |
ce07dd7c KR |
953 | align_power(obj_textsec(abfd)->_raw_size, |
954 | obj_textsec(abfd)->alignment_power); | |
955 | ||
956 | *text_size = obj_textsec (abfd)->_raw_size; | |
957 | /* Rule (heuristic) for when to pad to a new page. Note that there | |
4c3721d5 ILT |
958 | are (at least) two ways demand-paged (ZMAGIC) files have been |
959 | handled. Most Berkeley-based systems start the text segment at | |
960 | (PAGE_SIZE). However, newer versions of SUNOS start the text | |
961 | segment right after the exec header; the latter is counted in the | |
962 | text segment size, and is paged in by the kernel with the rest of | |
963 | the text. */ | |
ce07dd7c KR |
964 | |
965 | /* This perhaps isn't the right way to do this, but made it simpler for me | |
966 | to understand enough to implement it. Better would probably be to go | |
967 | right from BFD flags to alignment/positioning characteristics. But the | |
968 | old code was sloppy enough about handling the flags, and had enough | |
969 | other magic, that it was a little hard for me to understand. I think | |
970 | I understand it better now, but I haven't time to do the cleanup this | |
971 | minute. */ | |
4c3721d5 ILT |
972 | |
973 | if (abfd->flags & D_PAGED) | |
974 | /* Whether or not WP_TEXT is set -- let D_PAGED override. */ | |
4c3721d5 ILT |
975 | adata(abfd).magic = z_magic; |
976 | else if (abfd->flags & WP_TEXT) | |
977 | adata(abfd).magic = n_magic; | |
978 | else | |
979 | adata(abfd).magic = o_magic; | |
ce07dd7c KR |
980 | |
981 | #ifdef BFD_AOUT_DEBUG /* requires gcc2 */ | |
982 | #if __GNUC__ >= 2 | |
983 | fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n", | |
984 | ({ char *str; | |
985 | switch (adata(abfd).magic) { | |
986 | case n_magic: str = "NMAGIC"; break; | |
987 | case o_magic: str = "OMAGIC"; break; | |
988 | case z_magic: str = "ZMAGIC"; break; | |
989 | default: abort (); | |
990 | } | |
991 | str; | |
992 | }), | |
4c3721d5 ILT |
993 | obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size, |
994 | obj_textsec(abfd)->alignment_power, | |
995 | obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size, | |
996 | obj_datasec(abfd)->alignment_power, | |
997 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size, | |
998 | obj_bsssec(abfd)->alignment_power); | |
ce07dd7c KR |
999 | #endif |
1000 | #endif | |
1001 | ||
1002 | switch (adata(abfd).magic) | |
1003 | { | |
1004 | case o_magic: | |
4c3721d5 | 1005 | adjust_o_magic (abfd, execp); |
ce07dd7c KR |
1006 | break; |
1007 | case z_magic: | |
4c3721d5 | 1008 | adjust_z_magic (abfd, execp); |
ce07dd7c KR |
1009 | break; |
1010 | case n_magic: | |
4c3721d5 | 1011 | adjust_n_magic (abfd, execp); |
ce07dd7c KR |
1012 | break; |
1013 | default: | |
1014 | abort (); | |
1015 | } | |
4c3721d5 | 1016 | |
ce07dd7c KR |
1017 | #ifdef BFD_AOUT_DEBUG |
1018 | fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n", | |
4c3721d5 ILT |
1019 | obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size, |
1020 | obj_textsec(abfd)->filepos, | |
1021 | obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size, | |
1022 | obj_datasec(abfd)->filepos, | |
ce07dd7c KR |
1023 | obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size); |
1024 | #endif | |
4c3721d5 | 1025 | |
d047d16a | 1026 | return true; |
ce07dd7c KR |
1027 | } |
1028 | ||
4e41b5aa SC |
1029 | /* |
1030 | FUNCTION | |
c188b0be | 1031 | aout_@var{size}_new_section_hook |
4e41b5aa | 1032 | |
fa2b89f1 | 1033 | SYNOPSIS |
c188b0be | 1034 | boolean aout_@var{size}_new_section_hook, |
9e2dad8e JG |
1035 | (bfd *abfd, |
1036 | asection *newsect)); | |
c188b0be DM |
1037 | |
1038 | DESCRIPTION | |
1039 | Called by the BFD in response to a @code{bfd_make_section} | |
1040 | request. | |
6f715d66 | 1041 | */ |
7ed4093a | 1042 | boolean |
8eb5d4be JK |
1043 | NAME(aout,new_section_hook) (abfd, newsect) |
1044 | bfd *abfd; | |
1045 | asection *newsect; | |
7ed4093a | 1046 | { |
6db82ea7 SC |
1047 | /* align to double at least */ |
1048 | newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power; | |
3f7607af | 1049 | |
c188b0be DM |
1050 | |
1051 | if (bfd_get_format (abfd) == bfd_object) | |
6db82ea7 SC |
1052 | { |
1053 | if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) { | |
1054 | obj_textsec(abfd)= newsect; | |
e48f985c | 1055 | newsect->target_index = N_TEXT; |
6db82ea7 SC |
1056 | return true; |
1057 | } | |
c188b0be | 1058 | |
6db82ea7 SC |
1059 | if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) { |
1060 | obj_datasec(abfd) = newsect; | |
e48f985c | 1061 | newsect->target_index = N_DATA; |
6db82ea7 SC |
1062 | return true; |
1063 | } | |
c188b0be | 1064 | |
6db82ea7 SC |
1065 | if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { |
1066 | obj_bsssec(abfd) = newsect; | |
e48f985c | 1067 | newsect->target_index = N_BSS; |
6db82ea7 SC |
1068 | return true; |
1069 | } | |
1070 | ||
1071 | } | |
c188b0be | 1072 | |
6db82ea7 SC |
1073 | /* We allow more than three sections internally */ |
1074 | return true; | |
7ed4093a SC |
1075 | } |
1076 | ||
1077 | boolean | |
8eb5d4be JK |
1078 | NAME(aout,set_section_contents) (abfd, section, location, offset, count) |
1079 | bfd *abfd; | |
1080 | sec_ptr section; | |
1081 | PTR location; | |
1082 | file_ptr offset; | |
1083 | bfd_size_type count; | |
7ed4093a | 1084 | { |
7b02b4ed | 1085 | file_ptr text_end; |
7b02b4ed | 1086 | bfd_size_type text_size; |
ce07dd7c | 1087 | |
7ed4093a | 1088 | if (abfd->output_has_begun == false) |
ebd24135 ILT |
1089 | { |
1090 | if (NAME(aout,adjust_sizes_and_vmas) (abfd, | |
1091 | &text_size, | |
1092 | &text_end) == false) | |
1093 | return false; | |
9e2dad8e | 1094 | } |
12e7087f | 1095 | |
7ed4093a | 1096 | /* regardless, once we know what we're doing, we might as well get going */ |
c188b0be | 1097 | if (section != obj_bsssec(abfd)) |
7ed4093a | 1098 | { |
29e626eb ILT |
1099 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0) |
1100 | return false; | |
c188b0be | 1101 | |
7ed4093a SC |
1102 | if (count) { |
1103 | return (bfd_write ((PTR)location, 1, count, abfd) == count) ? | |
1104 | true : false; | |
1105 | } | |
6db82ea7 | 1106 | return true; |
7ed4093a SC |
1107 | } |
1108 | return true; | |
1109 | } | |
1110 | \f | |
5c8444f8 ILT |
1111 | /* Read the external symbols from an a.out file. */ |
1112 | ||
1113 | static boolean | |
1114 | aout_get_external_symbols (abfd) | |
1115 | bfd *abfd; | |
1116 | { | |
1117 | if (obj_aout_external_syms (abfd) == (struct external_nlist *) NULL) | |
1118 | { | |
1119 | bfd_size_type count; | |
1120 | struct external_nlist *syms; | |
1121 | ||
1122 | count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE; | |
1123 | ||
1124 | /* We allocate using malloc to make the values easy to free | |
1125 | later on. If we put them on the obstack it might not be | |
1126 | possible to free them. */ | |
1127 | syms = ((struct external_nlist *) | |
1128 | malloc ((size_t) count * EXTERNAL_NLIST_SIZE)); | |
1129 | if (syms == (struct external_nlist *) NULL && count != 0) | |
1130 | { | |
1131 | bfd_set_error (bfd_error_no_memory); | |
1132 | return false; | |
1133 | } | |
1134 | ||
1135 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
1136 | || (bfd_read (syms, 1, exec_hdr (abfd)->a_syms, abfd) | |
1137 | != exec_hdr (abfd)->a_syms)) | |
1138 | { | |
1139 | free (syms); | |
1140 | return false; | |
1141 | } | |
1142 | ||
1143 | obj_aout_external_syms (abfd) = syms; | |
1144 | obj_aout_external_sym_count (abfd) = count; | |
1145 | } | |
1146 | ||
4f019d04 ILT |
1147 | if (obj_aout_external_strings (abfd) == NULL |
1148 | && exec_hdr (abfd)->a_syms != 0) | |
5c8444f8 ILT |
1149 | { |
1150 | unsigned char string_chars[BYTES_IN_WORD]; | |
1151 | bfd_size_type stringsize; | |
1152 | char *strings; | |
1153 | ||
1154 | /* Get the size of the strings. */ | |
1155 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0 | |
1156 | || (bfd_read ((PTR) string_chars, BYTES_IN_WORD, 1, abfd) | |
1157 | != BYTES_IN_WORD)) | |
1158 | return false; | |
1159 | stringsize = GET_WORD (abfd, string_chars); | |
1160 | ||
1161 | strings = (char *) malloc ((size_t) stringsize + 1); | |
1162 | if (strings == NULL) | |
1163 | { | |
1164 | bfd_set_error (bfd_error_no_memory); | |
1165 | return false; | |
1166 | } | |
1167 | ||
1168 | /* Skip space for the string count in the buffer for convenience | |
1169 | when using indexes. */ | |
1170 | if (bfd_read (strings + BYTES_IN_WORD, 1, stringsize - BYTES_IN_WORD, | |
1171 | abfd) | |
1172 | != stringsize - BYTES_IN_WORD) | |
1173 | { | |
1174 | free (strings); | |
1175 | return false; | |
1176 | } | |
1177 | ||
1178 | /* Sanity preservation. */ | |
1179 | strings[stringsize] = '\0'; | |
1180 | ||
1181 | obj_aout_external_strings (abfd) = strings; | |
1182 | obj_aout_external_string_size (abfd) = stringsize; | |
1183 | } | |
1184 | ||
1185 | return true; | |
1186 | } | |
1187 | ||
4298e311 ILT |
1188 | /* Translate an a.out symbol into a BFD symbol. The desc, other, type |
1189 | and symbol->value fields of CACHE_PTR will be set from the a.out | |
1190 | nlist structure. This function is responsible for setting | |
1191 | symbol->flags and symbol->section, and adjusting symbol->value. */ | |
c188b0be | 1192 | |
9783e04a | 1193 | static boolean |
4298e311 ILT |
1194 | translate_from_native_sym_flags (abfd, cache_ptr) |
1195 | bfd *abfd; | |
1196 | aout_symbol_type *cache_ptr; | |
9e2dad8e | 1197 | { |
4298e311 ILT |
1198 | flagword visible; |
1199 | ||
1200 | if ((cache_ptr->type & N_STAB) != 0 | |
1201 | || cache_ptr->type == N_FN) | |
1202 | { | |
1203 | asection *sec; | |
1204 | ||
1205 | /* This is a debugging symbol. */ | |
1206 | ||
1207 | cache_ptr->symbol.flags = BSF_DEBUGGING; | |
1208 | ||
1209 | /* Work out the symbol section. */ | |
1210 | switch (cache_ptr->type & N_TYPE) | |
1211 | { | |
1212 | case N_TEXT: | |
1213 | case N_FN: | |
1214 | sec = obj_textsec (abfd); | |
1215 | break; | |
1216 | case N_DATA: | |
1217 | sec = obj_datasec (abfd); | |
1218 | break; | |
1219 | case N_BSS: | |
1220 | sec = obj_bsssec (abfd); | |
1221 | break; | |
1222 | default: | |
1223 | case N_ABS: | |
4587b578 | 1224 | sec = bfd_abs_section_ptr; |
4298e311 ILT |
1225 | break; |
1226 | } | |
1227 | ||
1228 | cache_ptr->symbol.section = sec; | |
1229 | cache_ptr->symbol.value -= sec->vma; | |
1230 | ||
1231 | return true; | |
1232 | } | |
1233 | ||
1234 | /* Get the default visibility. This does not apply to all types, so | |
1235 | we just hold it in a local variable to use if wanted. */ | |
1236 | if ((cache_ptr->type & N_EXT) == 0) | |
1237 | visible = BSF_LOCAL; | |
1238 | else | |
1239 | visible = BSF_GLOBAL; | |
1240 | ||
1241 | switch (cache_ptr->type) | |
6db82ea7 | 1242 | { |
4298e311 ILT |
1243 | default: |
1244 | case N_ABS: case N_ABS | N_EXT: | |
4587b578 | 1245 | cache_ptr->symbol.section = bfd_abs_section_ptr; |
4298e311 ILT |
1246 | cache_ptr->symbol.flags = visible; |
1247 | break; | |
1248 | ||
1249 | case N_UNDF | N_EXT: | |
1250 | if (cache_ptr->symbol.value != 0) | |
1251 | { | |
1252 | /* This is a common symbol. */ | |
1253 | cache_ptr->symbol.flags = BSF_GLOBAL; | |
4587b578 | 1254 | cache_ptr->symbol.section = bfd_com_section_ptr; |
4298e311 ILT |
1255 | } |
1256 | else | |
1257 | { | |
1258 | cache_ptr->symbol.flags = 0; | |
4587b578 | 1259 | cache_ptr->symbol.section = bfd_und_section_ptr; |
4298e311 ILT |
1260 | } |
1261 | break; | |
1262 | ||
1263 | case N_TEXT: case N_TEXT | N_EXT: | |
1264 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1265 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1266 | cache_ptr->symbol.flags = visible; | |
1267 | break; | |
1268 | ||
2cd086e3 ILT |
1269 | /* N_SETV symbols used to represent set vectors placed in the |
1270 | data section. They are no longer generated. Theoretically, | |
1271 | it was possible to extract the entries and combine them with | |
1272 | new ones, although I don't know if that was ever actually | |
1273 | done. Unless that feature is restored, treat them as data | |
1274 | symbols. */ | |
1275 | case N_SETV: case N_SETV | N_EXT: | |
4298e311 ILT |
1276 | case N_DATA: case N_DATA | N_EXT: |
1277 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1278 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1279 | cache_ptr->symbol.flags = visible; | |
1280 | break; | |
1281 | ||
1282 | case N_BSS: case N_BSS | N_EXT: | |
1283 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1284 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1285 | cache_ptr->symbol.flags = visible; | |
1286 | break; | |
1287 | ||
964affdc DM |
1288 | case N_SETA: case N_SETA | N_EXT: |
1289 | case N_SETT: case N_SETT | N_EXT: | |
1290 | case N_SETD: case N_SETD | N_EXT: | |
1291 | case N_SETB: case N_SETB | N_EXT: | |
ebd24135 | 1292 | { |
ebd24135 | 1293 | asection *section; |
4298e311 | 1294 | arelent_chain *reloc; |
ebd24135 | 1295 | asection *into_section; |
9783e04a | 1296 | |
4298e311 ILT |
1297 | /* This is a set symbol. The name of the symbol is the name |
1298 | of the set (e.g., __CTOR_LIST__). The value of the symbol | |
1299 | is the value to add to the set. We create a section with | |
1300 | the same name as the symbol, and add a reloc to insert the | |
1301 | appropriate value into the section. | |
1302 | ||
1303 | This action is actually obsolete; it used to make the | |
1304 | linker do the right thing, but the linker no longer uses | |
1305 | this function. */ | |
1306 | ||
1307 | section = bfd_get_section_by_name (abfd, cache_ptr->symbol.name); | |
1308 | if (section == NULL) | |
1309 | { | |
1310 | char *copy; | |
1311 | ||
1312 | copy = bfd_alloc (abfd, strlen (cache_ptr->symbol.name) + 1); | |
1313 | if (copy == NULL) | |
1314 | { | |
1315 | bfd_set_error (bfd_error_no_memory); | |
1316 | return false; | |
1317 | } | |
1318 | ||
1319 | strcpy (copy, cache_ptr->symbol.name); | |
1320 | section = bfd_make_section (abfd, copy); | |
1321 | if (section == NULL) | |
1322 | return false; | |
1323 | } | |
1324 | ||
1325 | reloc = (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
1326 | if (reloc == NULL) | |
9783e04a | 1327 | { |
68241b2b | 1328 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1329 | return false; |
1330 | } | |
1331 | ||
4298e311 ILT |
1332 | /* Build a relocation entry for the constructor. */ |
1333 | switch (cache_ptr->type & N_TYPE) | |
a99c3d70 | 1334 | { |
4298e311 | 1335 | case N_SETA: |
4587b578 | 1336 | into_section = bfd_abs_section_ptr; |
ebd24135 ILT |
1337 | cache_ptr->type = N_ABS; |
1338 | break; | |
4298e311 ILT |
1339 | case N_SETT: |
1340 | into_section = obj_textsec (abfd); | |
ebd24135 ILT |
1341 | cache_ptr->type = N_TEXT; |
1342 | break; | |
4298e311 ILT |
1343 | case N_SETD: |
1344 | into_section = obj_datasec (abfd); | |
ebd24135 ILT |
1345 | cache_ptr->type = N_DATA; |
1346 | break; | |
4298e311 ILT |
1347 | case N_SETB: |
1348 | into_section = obj_bsssec (abfd); | |
ebd24135 ILT |
1349 | cache_ptr->type = N_BSS; |
1350 | break; | |
ebd24135 | 1351 | } |
88dfcd68 | 1352 | |
4298e311 ILT |
1353 | /* Build a relocation pointing into the constructor section |
1354 | pointing at the symbol in the set vector specified. */ | |
ebd24135 | 1355 | reloc->relent.addend = cache_ptr->symbol.value; |
4298e311 | 1356 | cache_ptr->symbol.section = into_section; |
ebd24135 | 1357 | reloc->relent.sym_ptr_ptr = into_section->symbol_ptr_ptr; |
6db82ea7 | 1358 | |
4298e311 ILT |
1359 | /* We modify the symbol to belong to a section depending upon |
1360 | the name of the symbol, and add to the size of the section | |
1361 | to contain a pointer to the symbol. Build a reloc entry to | |
1362 | relocate to this symbol attached to this section. */ | |
a8a916c8 | 1363 | section->flags = SEC_CONSTRUCTOR | SEC_RELOC; |
a99c3d70 | 1364 | |
ebd24135 ILT |
1365 | section->reloc_count++; |
1366 | section->alignment_power = 2; | |
a99c3d70 | 1367 | |
ebd24135 ILT |
1368 | reloc->next = section->constructor_chain; |
1369 | section->constructor_chain = reloc; | |
1370 | reloc->relent.address = section->_raw_size; | |
4298e311 ILT |
1371 | section->_raw_size += BYTES_IN_WORD; |
1372 | ||
1373 | if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE) | |
1374 | reloc->relent.howto = howto_table_ext + CTOR_TABLE_RELOC_IDX; | |
1375 | else | |
1376 | reloc->relent.howto = howto_table_std + CTOR_TABLE_RELOC_IDX; | |
a99c3d70 | 1377 | |
ebd24135 ILT |
1378 | cache_ptr->symbol.flags |= BSF_CONSTRUCTOR; |
1379 | } | |
1380 | break; | |
0c205af2 | 1381 | |
4298e311 ILT |
1382 | case N_WARNING: |
1383 | /* This symbol is the text of a warning message. The next | |
1384 | symbol is the symbol to associate the warning with. If a | |
1385 | reference is made to that symbol, a warning is issued. */ | |
1386 | cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING; | |
ebd24135 | 1387 | |
4298e311 ILT |
1388 | /* @@ Stuffing pointers into integers is a no-no. We can |
1389 | usually get away with it if the integer is large enough | |
1390 | though. */ | |
1391 | if (sizeof (cache_ptr + 1) > sizeof (bfd_vma)) | |
1392 | abort (); | |
1393 | cache_ptr->symbol.value = (bfd_vma) (cache_ptr + 1); | |
ebd24135 | 1394 | |
4587b578 | 1395 | cache_ptr->symbol.section = bfd_abs_section_ptr; |
ebd24135 | 1396 | |
4298e311 | 1397 | break; |
ebd24135 | 1398 | |
4298e311 ILT |
1399 | case N_INDR: case N_INDR | N_EXT: |
1400 | /* An indirect symbol. This consists of two symbols in a row. | |
1401 | The first symbol is the name of the indirection. The second | |
1402 | symbol is the name of the target. A reference to the first | |
1403 | symbol becomes a reference to the second. */ | |
1404 | cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible; | |
ebd24135 | 1405 | |
4298e311 ILT |
1406 | /* @@ Stuffing pointers into integers is a no-no. We can |
1407 | usually get away with it if the integer is large enough | |
1408 | though. */ | |
1409 | if (sizeof (cache_ptr + 1) > sizeof (bfd_vma)) | |
1410 | abort (); | |
1411 | cache_ptr->symbol.value = (bfd_vma) (cache_ptr + 1); | |
ebd24135 | 1412 | |
4587b578 | 1413 | cache_ptr->symbol.section = bfd_ind_section_ptr; |
a99c3d70 | 1414 | |
4298e311 ILT |
1415 | break; |
1416 | ||
1417 | case N_WEAKU: | |
4587b578 | 1418 | cache_ptr->symbol.section = bfd_und_section_ptr; |
4298e311 ILT |
1419 | cache_ptr->symbol.flags = BSF_WEAK; |
1420 | break; | |
1421 | ||
1422 | case N_WEAKA: | |
4587b578 | 1423 | cache_ptr->symbol.section = bfd_abs_section_ptr; |
4298e311 ILT |
1424 | cache_ptr->symbol.flags = BSF_WEAK; |
1425 | break; | |
1426 | ||
1427 | case N_WEAKT: | |
1428 | cache_ptr->symbol.section = obj_textsec (abfd); | |
1429 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1430 | cache_ptr->symbol.flags = BSF_WEAK; | |
1431 | break; | |
1432 | ||
1433 | case N_WEAKD: | |
1434 | cache_ptr->symbol.section = obj_datasec (abfd); | |
1435 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1436 | cache_ptr->symbol.flags = BSF_WEAK; | |
1437 | break; | |
1438 | ||
1439 | case N_WEAKB: | |
1440 | cache_ptr->symbol.section = obj_bsssec (abfd); | |
1441 | cache_ptr->symbol.value -= cache_ptr->symbol.section->vma; | |
1442 | cache_ptr->symbol.flags = BSF_WEAK; | |
1443 | break; | |
a99c3d70 | 1444 | } |
4298e311 | 1445 | |
9783e04a | 1446 | return true; |
7ed4093a SC |
1447 | } |
1448 | ||
4298e311 | 1449 | /* Set the fields of SYM_POINTER according to CACHE_PTR. */ |
6db82ea7 | 1450 | |
4c3721d5 | 1451 | static boolean |
4298e311 | 1452 | translate_to_native_sym_flags (abfd, cache_ptr, sym_pointer) |
8eb5d4be | 1453 | bfd *abfd; |
4298e311 ILT |
1454 | asymbol *cache_ptr; |
1455 | struct external_nlist *sym_pointer; | |
7ed4093a SC |
1456 | { |
1457 | bfd_vma value = cache_ptr->value; | |
1458 | ||
4298e311 ILT |
1459 | /* Mask out any existing type bits in case copying from one section |
1460 | to another. */ | |
10dea9ed | 1461 | sym_pointer->e_type[0] &= ~N_TYPE; |
a99c3d70 | 1462 | |
4587b578 | 1463 | if (bfd_is_abs_section (bfd_get_section (cache_ptr))) |
3caa6924 | 1464 | sym_pointer->e_type[0] |= N_ABS; |
f5419a59 ILT |
1465 | else if (bfd_get_section (cache_ptr) == obj_textsec (abfd) |
1466 | || (bfd_get_section (cache_ptr)->output_section | |
1467 | == obj_textsec (abfd))) | |
3caa6924 | 1468 | sym_pointer->e_type[0] |= N_TEXT; |
f5419a59 ILT |
1469 | else if (bfd_get_section (cache_ptr) == obj_datasec (abfd) |
1470 | || (bfd_get_section (cache_ptr)->output_section | |
1471 | == obj_datasec (abfd))) | |
a99c3d70 | 1472 | sym_pointer->e_type[0] |= N_DATA; |
f5419a59 ILT |
1473 | else if (bfd_get_section (cache_ptr) == obj_bsssec (abfd) |
1474 | || (bfd_get_section (cache_ptr)->output_section | |
1475 | == obj_bsssec (abfd))) | |
3caa6924 | 1476 | sym_pointer->e_type[0] |= N_BSS; |
4298e311 ILT |
1477 | else if (bfd_get_section (cache_ptr) == NULL) |
1478 | { | |
1479 | /* Protect the bfd_is_com_section call. This case occurs, e.g., | |
1480 | for the *DEBUG* section of a COFF file. */ | |
1481 | bfd_set_error (bfd_error_nonrepresentable_section); | |
1482 | return false; | |
1483 | } | |
4587b578 ILT |
1484 | else if (bfd_is_und_section (bfd_get_section (cache_ptr))) |
1485 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1486 | else if (bfd_is_ind_section (bfd_get_section (cache_ptr))) | |
1487 | sym_pointer->e_type[0] = N_INDR; | |
4298e311 ILT |
1488 | else if (bfd_is_com_section (bfd_get_section (cache_ptr))) |
1489 | sym_pointer->e_type[0] = N_UNDF | N_EXT; | |
1490 | else | |
1491 | { | |
1492 | bfd_set_error (bfd_error_nonrepresentable_section); | |
1493 | return false; | |
1494 | } | |
6f56c941 | 1495 | |
6db82ea7 | 1496 | /* Turn the symbol from section relative to absolute again */ |
4298e311 | 1497 | value += cache_ptr->section->vma; |
c188b0be | 1498 | |
4298e311 | 1499 | if ((cache_ptr->flags & BSF_WARNING) != 0) |
d7e34f67 | 1500 | sym_pointer->e_type[0] = N_WARNING; |
c188b0be | 1501 | |
4298e311 ILT |
1502 | if ((cache_ptr->flags & BSF_DEBUGGING) != 0) |
1503 | sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type; | |
1504 | else if ((cache_ptr->flags & BSF_GLOBAL) != 0) | |
3caa6924 | 1505 | sym_pointer->e_type[0] |= N_EXT; |
4298e311 ILT |
1506 | |
1507 | if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0) | |
1508 | { | |
1509 | int type = ((aout_symbol_type *) cache_ptr)->type; | |
1510 | switch (type) | |
1511 | { | |
1512 | case N_ABS: type = N_SETA; break; | |
1513 | case N_TEXT: type = N_SETT; break; | |
1514 | case N_DATA: type = N_SETD; break; | |
1515 | case N_BSS: type = N_SETB; break; | |
1516 | } | |
1517 | sym_pointer->e_type[0] = type; | |
1518 | } | |
1519 | ||
1520 | if ((cache_ptr->flags & BSF_WEAK) != 0) | |
1521 | { | |
1522 | int type; | |
1523 | ||
1524 | switch (sym_pointer->e_type[0] & N_TYPE) | |
1525 | { | |
1526 | default: | |
1527 | case N_ABS: type = N_WEAKA; break; | |
1528 | case N_TEXT: type = N_WEAKT; break; | |
1529 | case N_DATA: type = N_WEAKD; break; | |
1530 | case N_BSS: type = N_WEAKB; break; | |
1531 | case N_UNDF: type = N_WEAKU; break; | |
1532 | } | |
1533 | sym_pointer->e_type[0] = type; | |
1534 | } | |
6db82ea7 | 1535 | |
7ed4093a | 1536 | PUT_WORD(abfd, value, sym_pointer->e_value); |
4c3721d5 ILT |
1537 | |
1538 | return true; | |
7ed4093a SC |
1539 | } |
1540 | \f | |
1541 | /* Native-level interface to symbols. */ | |
1542 | ||
7ed4093a | 1543 | asymbol * |
8eb5d4be JK |
1544 | NAME(aout,make_empty_symbol) (abfd) |
1545 | bfd *abfd; | |
9e2dad8e JG |
1546 | { |
1547 | aout_symbol_type *new = | |
1548 | (aout_symbol_type *)bfd_zalloc (abfd, sizeof (aout_symbol_type)); | |
9783e04a DM |
1549 | if (!new) |
1550 | { | |
68241b2b | 1551 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1552 | return NULL; |
1553 | } | |
9e2dad8e | 1554 | new->symbol.the_bfd = abfd; |
fa2b89f1 | 1555 | |
9e2dad8e JG |
1556 | return &new->symbol; |
1557 | } | |
7ed4093a | 1558 | |
0ee75d02 ILT |
1559 | /* Translate a set of internal symbols into external symbols. */ |
1560 | ||
fa77c704 ILT |
1561 | boolean |
1562 | NAME(aout,translate_symbol_table) (abfd, in, ext, count, str, strsize, dynamic) | |
0ee75d02 ILT |
1563 | bfd *abfd; |
1564 | aout_symbol_type *in; | |
1565 | struct external_nlist *ext; | |
1566 | bfd_size_type count; | |
1567 | char *str; | |
1568 | bfd_size_type strsize; | |
1569 | boolean dynamic; | |
1570 | { | |
1571 | struct external_nlist *ext_end; | |
1572 | ||
1573 | ext_end = ext + count; | |
1574 | for (; ext < ext_end; ext++, in++) | |
1575 | { | |
1576 | bfd_vma x; | |
1577 | ||
1578 | x = GET_WORD (abfd, ext->e_strx); | |
1579 | in->symbol.the_bfd = abfd; | |
ca1c6bec ILT |
1580 | |
1581 | /* For the normal symbols, the zero index points at the number | |
1582 | of bytes in the string table but is to be interpreted as the | |
1583 | null string. For the dynamic symbols, the number of bytes in | |
1584 | the string table is stored in the __DYNAMIC structure and the | |
1585 | zero index points at an actual string. */ | |
1586 | if (x == 0 && ! dynamic) | |
1587 | in->symbol.name = ""; | |
1588 | else if (x < strsize) | |
0ee75d02 ILT |
1589 | in->symbol.name = str + x; |
1590 | else | |
1591 | return false; | |
1592 | ||
1593 | in->symbol.value = GET_SWORD (abfd, ext->e_value); | |
1594 | in->desc = bfd_h_get_16 (abfd, ext->e_desc); | |
1595 | in->other = bfd_h_get_8 (abfd, ext->e_other); | |
1596 | in->type = bfd_h_get_8 (abfd, ext->e_type); | |
1597 | in->symbol.udata = 0; | |
1598 | ||
4298e311 | 1599 | if (! translate_from_native_sym_flags (abfd, in)) |
9783e04a | 1600 | return false; |
0ee75d02 ILT |
1601 | |
1602 | if (dynamic) | |
1603 | in->symbol.flags |= BSF_DYNAMIC; | |
1604 | } | |
1605 | ||
1606 | return true; | |
1607 | } | |
1608 | ||
1609 | /* We read the symbols into a buffer, which is discarded when this | |
1610 | function exits. We read the strings into a buffer large enough to | |
1611 | hold them all plus all the cached symbol entries. */ | |
1612 | ||
7ed4093a | 1613 | boolean |
8eb5d4be JK |
1614 | NAME(aout,slurp_symbol_table) (abfd) |
1615 | bfd *abfd; | |
9e2dad8e | 1616 | { |
5c8444f8 | 1617 | struct external_nlist *old_external_syms; |
9e2dad8e | 1618 | aout_symbol_type *cached; |
5c8444f8 | 1619 | size_t cached_size; |
0f213cc2 | 1620 | |
9e2dad8e | 1621 | /* If there's no work to be done, don't do any */ |
5c8444f8 ILT |
1622 | if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL) |
1623 | return true; | |
1624 | ||
1625 | old_external_syms = obj_aout_external_syms (abfd); | |
1626 | ||
1627 | if (! aout_get_external_symbols (abfd)) | |
1628 | return false; | |
1629 | ||
1630 | if (obj_aout_external_sym_count (abfd) == 0) | |
0f213cc2 | 1631 | { |
68241b2b | 1632 | bfd_set_error (bfd_error_no_symbols); |
0f213cc2 KR |
1633 | return false; |
1634 | } | |
1635 | ||
fa77c704 | 1636 | cached_size = (obj_aout_external_sym_count (abfd) |
5c8444f8 ILT |
1637 | * sizeof (aout_symbol_type)); |
1638 | cached = (aout_symbol_type *) malloc (cached_size); | |
5c8444f8 | 1639 | if (cached == NULL) |
9783e04a | 1640 | { |
68241b2b | 1641 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1642 | return false; |
1643 | } | |
e85e8bfe | 1644 | memset (cached, 0, cached_size); |
5c8444f8 ILT |
1645 | |
1646 | /* Convert from external symbol information to internal. */ | |
fa77c704 ILT |
1647 | if (! (NAME(aout,translate_symbol_table) |
1648 | (abfd, cached, | |
1649 | obj_aout_external_syms (abfd), | |
1650 | obj_aout_external_sym_count (abfd), | |
1651 | obj_aout_external_strings (abfd), | |
1652 | obj_aout_external_string_size (abfd), | |
1653 | false))) | |
0f213cc2 | 1654 | { |
5c8444f8 | 1655 | free (cached); |
0f213cc2 KR |
1656 | return false; |
1657 | } | |
1658 | ||
fa77c704 | 1659 | bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd); |
0f213cc2 | 1660 | |
5c8444f8 | 1661 | obj_aout_symbols (abfd) = cached; |
0f213cc2 | 1662 | |
5c8444f8 ILT |
1663 | /* It is very likely that anybody who calls this function will not |
1664 | want the external symbol information, so if it was allocated | |
1665 | because of our call to aout_get_external_symbols, we free it up | |
1666 | right away to save space. */ | |
1667 | if (old_external_syms == (struct external_nlist *) NULL | |
1668 | && obj_aout_external_syms (abfd) != (struct external_nlist *) NULL) | |
1669 | { | |
1670 | free (obj_aout_external_syms (abfd)); | |
1671 | obj_aout_external_syms (abfd) = NULL; | |
0ee75d02 | 1672 | } |
0f213cc2 | 1673 | |
9e2dad8e JG |
1674 | return true; |
1675 | } | |
0f213cc2 | 1676 | \f |
d17fc4c9 ILT |
1677 | /* We use a hash table when writing out symbols so that we only write |
1678 | out a particular string once. This helps particularly when the | |
1679 | linker writes out stabs debugging entries, because each different | |
1680 | contributing object file tends to have many duplicate stabs | |
1681 | strings. | |
1682 | ||
1683 | Possible improvements: | |
0f213cc2 KR |
1684 | + look for strings matching trailing substrings of other strings |
1685 | + better data structures? balanced trees? | |
d17fc4c9 ILT |
1686 | + look at reducing memory use elsewhere -- maybe if we didn't have |
1687 | to construct the entire symbol table at once, we could get by | |
1688 | with smaller amounts of VM? (What effect does that have on the | |
1689 | string table reductions?) | |
0f213cc2 | 1690 | |
d63d0479 ILT |
1691 | This hash table code breaks dbx on SunOS 4.1.3, so we don't do it |
1692 | if BFD_TRADITIONAL_FORMAT is set. */ | |
0f213cc2 | 1693 | |
d17fc4c9 | 1694 | /* An entry in the strtab hash table. */ |
0f213cc2 | 1695 | |
d17fc4c9 ILT |
1696 | struct strtab_hash_entry |
1697 | { | |
1698 | struct bfd_hash_entry root; | |
1699 | /* Index in string table. */ | |
0f213cc2 | 1700 | bfd_size_type index; |
d17fc4c9 ILT |
1701 | /* Next string in strtab. */ |
1702 | struct strtab_hash_entry *next; | |
0f213cc2 KR |
1703 | }; |
1704 | ||
d17fc4c9 ILT |
1705 | /* The strtab hash table. */ |
1706 | ||
1707 | struct strtab_hash | |
1708 | { | |
1709 | struct bfd_hash_table table; | |
1710 | /* Size of strtab--also next available index. */ | |
1711 | bfd_size_type size; | |
1712 | /* First string in strtab. */ | |
1713 | struct strtab_hash_entry *first; | |
1714 | /* Last string in strtab. */ | |
1715 | struct strtab_hash_entry *last; | |
1716 | }; | |
0f213cc2 | 1717 | |
d17fc4c9 ILT |
1718 | static struct bfd_hash_entry *strtab_hash_newfunc |
1719 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
1720 | static boolean stringtab_init PARAMS ((struct strtab_hash *)); | |
1721 | static bfd_size_type add_to_stringtab | |
1722 | PARAMS ((bfd *, struct strtab_hash *, const char *, boolean)); | |
1723 | static boolean emit_stringtab PARAMS ((bfd *, struct strtab_hash *)); | |
3caa6924 | 1724 | |
d17fc4c9 | 1725 | /* Routine to create an entry in a strtab. */ |
3caa6924 | 1726 | |
d17fc4c9 ILT |
1727 | static struct bfd_hash_entry * |
1728 | strtab_hash_newfunc (entry, table, string) | |
1729 | struct bfd_hash_entry *entry; | |
1730 | struct bfd_hash_table *table; | |
1731 | const char *string; | |
0f213cc2 | 1732 | { |
d17fc4c9 | 1733 | struct strtab_hash_entry *ret = (struct strtab_hash_entry *) entry; |
3caa6924 | 1734 | |
d17fc4c9 ILT |
1735 | /* Allocate the structure if it has not already been allocated by a |
1736 | subclass. */ | |
1737 | if (ret == (struct strtab_hash_entry *) NULL) | |
1738 | ret = ((struct strtab_hash_entry *) | |
1739 | bfd_hash_allocate (table, sizeof (struct strtab_hash_entry))); | |
1740 | if (ret == (struct strtab_hash_entry *) NULL) | |
0f213cc2 | 1741 | { |
d17fc4c9 ILT |
1742 | bfd_set_error (bfd_error_no_memory); |
1743 | return NULL; | |
3caa6924 DM |
1744 | } |
1745 | ||
d17fc4c9 ILT |
1746 | /* Call the allocation method of the superclass. */ |
1747 | ret = ((struct strtab_hash_entry *) | |
1748 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
1749 | ||
1750 | if (ret) | |
3caa6924 | 1751 | { |
d17fc4c9 ILT |
1752 | /* Initialize the local fields. */ |
1753 | ret->index = (bfd_size_type) -1; | |
1754 | ret->next = NULL; | |
0f213cc2 | 1755 | } |
0f213cc2 | 1756 | |
d17fc4c9 | 1757 | return (struct bfd_hash_entry *) ret; |
0f213cc2 KR |
1758 | } |
1759 | ||
d17fc4c9 ILT |
1760 | /* Look up an entry in an strtab. */ |
1761 | ||
1762 | #define strtab_hash_lookup(t, string, create, copy) \ | |
1763 | ((struct strtab_hash_entry *) \ | |
1764 | bfd_hash_lookup (&(t)->table, (string), (create), (copy))) | |
0f213cc2 | 1765 | |
d17fc4c9 ILT |
1766 | /* Create a new strtab. */ |
1767 | ||
1768 | static boolean | |
1769 | stringtab_init (table) | |
1770 | struct strtab_hash *table; | |
0f213cc2 | 1771 | { |
d17fc4c9 ILT |
1772 | if (! bfd_hash_table_init (&table->table, strtab_hash_newfunc)) |
1773 | return false; | |
1774 | ||
1775 | /* Leave space for the size of the string table. */ | |
1776 | table->size = BYTES_IN_WORD; | |
1777 | ||
1778 | table->first = NULL; | |
1779 | table->last = NULL; | |
1780 | ||
1781 | return true; | |
0f213cc2 | 1782 | } |
0f213cc2 | 1783 | |
d17fc4c9 ILT |
1784 | /* Free a strtab. */ |
1785 | ||
1786 | #define stringtab_free(tab) bfd_hash_table_free (&(tab)->table) | |
1787 | ||
1788 | /* Get the index of a string in a strtab, adding it if it is not | |
1789 | already present. If HASH is false, we don't really use the hash | |
1790 | table, and we don't eliminate duplicate strings. */ | |
1791 | ||
1792 | static INLINE bfd_size_type | |
1793 | add_to_stringtab (abfd, tab, str, copy) | |
0f213cc2 | 1794 | bfd *abfd; |
d17fc4c9 ILT |
1795 | struct strtab_hash *tab; |
1796 | const char *str; | |
1797 | boolean copy; | |
0f213cc2 | 1798 | { |
d17fc4c9 | 1799 | register struct strtab_hash_entry *entry; |
0f213cc2 | 1800 | |
d17fc4c9 ILT |
1801 | /* An index of 0 always means the empty string. */ |
1802 | if (*str == '\0') | |
1803 | return 0; | |
0f213cc2 | 1804 | |
d17fc4c9 | 1805 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) == 0) |
0f213cc2 | 1806 | { |
d17fc4c9 ILT |
1807 | entry = strtab_hash_lookup (tab, str, true, copy); |
1808 | if (entry == NULL) | |
1809 | return (bfd_size_type) -1; | |
0f213cc2 | 1810 | } |
d17fc4c9 | 1811 | else |
0f213cc2 | 1812 | { |
d17fc4c9 ILT |
1813 | entry = ((struct strtab_hash_entry *) |
1814 | bfd_hash_allocate (&tab->table, | |
1815 | sizeof (struct strtab_hash_entry))); | |
1816 | if (entry == NULL) | |
1817 | return (bfd_size_type) -1; | |
1818 | if (! copy) | |
1819 | entry->root.string = str; | |
3caa6924 | 1820 | else |
0f213cc2 | 1821 | { |
d17fc4c9 ILT |
1822 | char *n; |
1823 | ||
1824 | n = (char *) bfd_hash_allocate (&tab->table, strlen (str) + 1); | |
1825 | if (n == NULL) | |
1826 | return (bfd_size_type) -1; | |
1827 | entry->root.string = n; | |
0f213cc2 | 1828 | } |
d17fc4c9 ILT |
1829 | entry->index = (bfd_size_type) -1; |
1830 | entry->next = NULL; | |
0f213cc2 KR |
1831 | } |
1832 | ||
d17fc4c9 | 1833 | if (entry->index == (bfd_size_type) -1) |
9783e04a | 1834 | { |
d17fc4c9 ILT |
1835 | entry->index = tab->size; |
1836 | tab->size += strlen (str) + 1; | |
1837 | if (tab->first == NULL) | |
1838 | tab->first = entry; | |
1839 | else | |
1840 | tab->last->next = entry; | |
1841 | tab->last = entry; | |
9783e04a | 1842 | } |
0f213cc2 | 1843 | |
0f213cc2 KR |
1844 | return entry->index; |
1845 | } | |
1846 | ||
d17fc4c9 ILT |
1847 | /* Write out a strtab. ABFD is already at the right location in the |
1848 | file. */ | |
1849 | ||
29e626eb | 1850 | static boolean |
d17fc4c9 ILT |
1851 | emit_stringtab (abfd, tab) |
1852 | register bfd *abfd; | |
1853 | struct strtab_hash *tab; | |
0f213cc2 | 1854 | { |
d17fc4c9 ILT |
1855 | bfd_byte buffer[BYTES_IN_WORD]; |
1856 | register struct strtab_hash_entry *entry; | |
0f213cc2 | 1857 | |
d17fc4c9 | 1858 | PUT_WORD (abfd, tab->size, buffer); |
29e626eb ILT |
1859 | if (bfd_write ((PTR) buffer, 1, BYTES_IN_WORD, abfd) != BYTES_IN_WORD) |
1860 | return false; | |
0f213cc2 | 1861 | |
d17fc4c9 | 1862 | for (entry = tab->first; entry != NULL; entry = entry->next) |
0f213cc2 | 1863 | { |
d17fc4c9 ILT |
1864 | register const char *str; |
1865 | register size_t len; | |
29e626eb | 1866 | |
d17fc4c9 ILT |
1867 | str = entry->root.string; |
1868 | len = strlen (str) + 1; | |
1869 | if (bfd_write ((PTR) str, 1, len, abfd) != len) | |
29e626eb | 1870 | return false; |
0f213cc2 KR |
1871 | } |
1872 | ||
29e626eb | 1873 | return true; |
0f213cc2 | 1874 | } |
d17fc4c9 | 1875 | \f |
4c3721d5 | 1876 | boolean |
8eb5d4be JK |
1877 | NAME(aout,write_syms) (abfd) |
1878 | bfd *abfd; | |
0f213cc2 KR |
1879 | { |
1880 | unsigned int count ; | |
1881 | asymbol **generic = bfd_get_outsymbols (abfd); | |
d17fc4c9 | 1882 | struct strtab_hash strtab; |
0f213cc2 | 1883 | |
d17fc4c9 ILT |
1884 | if (! stringtab_init (&strtab)) |
1885 | return false; | |
0f213cc2 KR |
1886 | |
1887 | for (count = 0; count < bfd_get_symcount (abfd); count++) | |
1888 | { | |
7ed4093a | 1889 | asymbol *g = generic[count]; |
d17fc4c9 | 1890 | bfd_size_type indx; |
7ed4093a | 1891 | struct external_nlist nsp; |
6db82ea7 | 1892 | |
d17fc4c9 ILT |
1893 | indx = add_to_stringtab (abfd, &strtab, g->name, false); |
1894 | if (indx == (bfd_size_type) -1) | |
1895 | goto error_return; | |
1896 | PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx); | |
6db82ea7 | 1897 | |
0f213cc2 KR |
1898 | if (bfd_asymbol_flavour(g) == abfd->xvec->flavour) |
1899 | { | |
1900 | bfd_h_put_16(abfd, aout_symbol(g)->desc, nsp.e_desc); | |
1901 | bfd_h_put_8(abfd, aout_symbol(g)->other, nsp.e_other); | |
1902 | bfd_h_put_8(abfd, aout_symbol(g)->type, nsp.e_type); | |
1903 | } | |
7ed4093a | 1904 | else |
0f213cc2 KR |
1905 | { |
1906 | bfd_h_put_16(abfd,0, nsp.e_desc); | |
1907 | bfd_h_put_8(abfd, 0, nsp.e_other); | |
1908 | bfd_h_put_8(abfd, 0, nsp.e_type); | |
1909 | } | |
7b02b4ed | 1910 | |
4298e311 | 1911 | if (! translate_to_native_sym_flags (abfd, g, &nsp)) |
d17fc4c9 | 1912 | goto error_return; |
7b02b4ed | 1913 | |
4c3721d5 ILT |
1914 | if (bfd_write((PTR)&nsp,1,EXTERNAL_NLIST_SIZE, abfd) |
1915 | != EXTERNAL_NLIST_SIZE) | |
d17fc4c9 | 1916 | goto error_return; |
7ed4093a | 1917 | |
0f213cc2 KR |
1918 | /* NB: `KEEPIT' currently overlays `flags', so set this only |
1919 | here, at the end. */ | |
1920 | g->KEEPIT = count; | |
1921 | } | |
7ed4093a | 1922 | |
d17fc4c9 ILT |
1923 | if (! emit_stringtab (abfd, &strtab)) |
1924 | goto error_return; | |
1925 | ||
1926 | stringtab_free (&strtab); | |
1927 | ||
1928 | return true; | |
1929 | ||
1930 | error_return: | |
1931 | stringtab_free (&strtab); | |
1932 | return false; | |
0f213cc2 | 1933 | } |
7ed4093a | 1934 | |
0f213cc2 | 1935 | \f |
326e32d7 | 1936 | long |
8eb5d4be JK |
1937 | NAME(aout,get_symtab) (abfd, location) |
1938 | bfd *abfd; | |
1939 | asymbol **location; | |
3f7607af | 1940 | { |
7ed4093a SC |
1941 | unsigned int counter = 0; |
1942 | aout_symbol_type *symbase; | |
ce07dd7c | 1943 | |
326e32d7 ILT |
1944 | if (!NAME(aout,slurp_symbol_table)(abfd)) |
1945 | return -1; | |
ce07dd7c | 1946 | |
7ed4093a SC |
1947 | for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);) |
1948 | *(location++) = (asymbol *)( symbase++); | |
1949 | *location++ =0; | |
ce07dd7c | 1950 | return bfd_get_symcount (abfd); |
3f7607af | 1951 | } |
7ed4093a SC |
1952 | |
1953 | \f | |
1954 | /* Standard reloc stuff */ | |
1955 | /* Output standard relocation information to a file in target byte order. */ | |
1956 | ||
1957 | void | |
8eb5d4be JK |
1958 | NAME(aout,swap_std_reloc_out) (abfd, g, natptr) |
1959 | bfd *abfd; | |
1960 | arelent *g; | |
1961 | struct reloc_std_external *natptr; | |
3f7607af | 1962 | { |
6db82ea7 SC |
1963 | int r_index; |
1964 | asymbol *sym = *(g->sym_ptr_ptr); | |
1965 | int r_extern; | |
1966 | unsigned int r_length; | |
1967 | int r_pcrel; | |
1968 | int r_baserel, r_jmptable, r_relative; | |
6db82ea7 | 1969 | asection *output_section = sym->section->output_section; |
ce07dd7c | 1970 | |
6db82ea7 | 1971 | PUT_WORD(abfd, g->address, natptr->r_address); |
ce07dd7c | 1972 | |
6db82ea7 SC |
1973 | r_length = g->howto->size ; /* Size as a power of two */ |
1974 | r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */ | |
c188b0be DM |
1975 | /* XXX This relies on relocs coming from a.out files. */ |
1976 | r_baserel = (g->howto->type & 8) != 0; | |
cb9461ff JK |
1977 | r_jmptable = (g->howto->type & 16) != 0; |
1978 | r_relative = (g->howto->type & 32) != 0; | |
c188b0be | 1979 | |
728472f1 ILT |
1980 | #if 0 |
1981 | /* For a standard reloc, the addend is in the object file. */ | |
6db82ea7 | 1982 | r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma; |
728472f1 | 1983 | #endif |
c188b0be | 1984 | |
6db82ea7 SC |
1985 | /* name was clobbered by aout_write_syms to be symbol index */ |
1986 | ||
c188b0be | 1987 | /* If this relocation is relative to a symbol then set the |
2768b3f7 SC |
1988 | r_index to the symbols index, and the r_extern bit. |
1989 | ||
1990 | Absolute symbols can come in in two ways, either as an offset | |
1991 | from the abs section, or as a symbol which has an abs value. | |
1992 | check for that here | |
1993 | */ | |
c188b0be | 1994 | |
2768b3f7 | 1995 | |
382f2a3d | 1996 | if (bfd_is_com_section (output_section) |
4587b578 ILT |
1997 | || bfd_is_abs_section (output_section) |
1998 | || bfd_is_und_section (output_section)) | |
ce07dd7c | 1999 | { |
4587b578 | 2000 | if (bfd_abs_section_ptr->symbol == sym) |
2768b3f7 SC |
2001 | { |
2002 | /* Whoops, looked like an abs symbol, but is really an offset | |
2003 | from the abs section */ | |
2004 | r_index = 0; | |
2005 | r_extern = 0; | |
2006 | } | |
c188b0be | 2007 | else |
2768b3f7 SC |
2008 | { |
2009 | /* Fill in symbol */ | |
2010 | r_extern = 1; | |
2011 | r_index = stoi((*(g->sym_ptr_ptr))->KEEPIT); | |
c188b0be | 2012 | |
2768b3f7 | 2013 | } |
ce07dd7c | 2014 | } |
c188b0be | 2015 | else |
ce07dd7c KR |
2016 | { |
2017 | /* Just an ordinary section */ | |
2018 | r_extern = 0; | |
c188b0be | 2019 | r_index = output_section->target_index; |
ce07dd7c KR |
2020 | } |
2021 | ||
6db82ea7 SC |
2022 | /* now the fun stuff */ |
2023 | if (abfd->xvec->header_byteorder_big_p != false) { | |
7ed4093a SC |
2024 | natptr->r_index[0] = r_index >> 16; |
2025 | natptr->r_index[1] = r_index >> 8; | |
2026 | natptr->r_index[2] = r_index; | |
2027 | natptr->r_type[0] = | |
6db82ea7 SC |
2028 | (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0) |
2029 | | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0) | |
2030 | | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0) | |
2031 | | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0) | |
2032 | | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0) | |
2033 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG); | |
7ed4093a | 2034 | } else { |
6db82ea7 SC |
2035 | natptr->r_index[2] = r_index >> 16; |
2036 | natptr->r_index[1] = r_index >> 8; | |
2037 | natptr->r_index[0] = r_index; | |
2038 | natptr->r_type[0] = | |
2039 | (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0) | |
7ed4093a | 2040 | | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0) |
6db82ea7 SC |
2041 | | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0) |
2042 | | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0) | |
2043 | | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0) | |
2044 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE); | |
2045 | } | |
3f7607af | 2046 | } |
7ed4093a SC |
2047 | |
2048 | ||
2049 | /* Extended stuff */ | |
2050 | /* Output extended relocation information to a file in target byte order. */ | |
2051 | ||
2052 | void | |
8eb5d4be JK |
2053 | NAME(aout,swap_ext_reloc_out) (abfd, g, natptr) |
2054 | bfd *abfd; | |
2055 | arelent *g; | |
2056 | register struct reloc_ext_external *natptr; | |
3f7607af | 2057 | { |
6db82ea7 SC |
2058 | int r_index; |
2059 | int r_extern; | |
2060 | unsigned int r_type; | |
2061 | unsigned int r_addend; | |
c188b0be | 2062 | asymbol *sym = *(g->sym_ptr_ptr); |
6db82ea7 | 2063 | asection *output_section = sym->section->output_section; |
c188b0be | 2064 | |
6db82ea7 | 2065 | PUT_WORD (abfd, g->address, natptr->r_address); |
c188b0be | 2066 | |
6db82ea7 | 2067 | r_type = (unsigned int) g->howto->type; |
7ed4093a | 2068 | |
c188b0be | 2069 | r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma; |
7ed4093a | 2070 | |
c188b0be | 2071 | /* If this relocation is relative to a symbol then set the |
2768b3f7 SC |
2072 | r_index to the symbols index, and the r_extern bit. |
2073 | ||
2074 | Absolute symbols can come in in two ways, either as an offset | |
2075 | from the abs section, or as a symbol which has an abs value. | |
c188b0be DM |
2076 | check for that here. */ |
2077 | ||
382f2a3d | 2078 | if (bfd_is_com_section (output_section) |
4587b578 ILT |
2079 | || bfd_is_abs_section (output_section) |
2080 | || bfd_is_und_section (output_section)) | |
6db82ea7 | 2081 | { |
4587b578 | 2082 | if (bfd_abs_section_ptr->symbol == sym) |
2768b3f7 SC |
2083 | { |
2084 | /* Whoops, looked like an abs symbol, but is really an offset | |
2085 | from the abs section */ | |
2086 | r_index = 0; | |
2087 | r_extern = 0; | |
2088 | } | |
c188b0be | 2089 | else |
2768b3f7 SC |
2090 | { |
2091 | r_extern = 1; | |
2092 | r_index = stoi((*(g->sym_ptr_ptr))->KEEPIT); | |
2093 | } | |
6db82ea7 | 2094 | } |
c188b0be | 2095 | else |
6db82ea7 SC |
2096 | { |
2097 | /* Just an ordinary section */ | |
2098 | r_extern = 0; | |
c188b0be | 2099 | r_index = output_section->target_index; |
6db82ea7 | 2100 | } |
c188b0be | 2101 | |
7ed4093a SC |
2102 | /* now the fun stuff */ |
2103 | if (abfd->xvec->header_byteorder_big_p != false) { | |
2768b3f7 SC |
2104 | natptr->r_index[0] = r_index >> 16; |
2105 | natptr->r_index[1] = r_index >> 8; | |
2106 | natptr->r_index[2] = r_index; | |
2107 | natptr->r_type[0] = | |
c188b0be DM |
2108 | ((r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0) |
2109 | | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2768b3f7 SC |
2110 | } else { |
2111 | natptr->r_index[2] = r_index >> 16; | |
2112 | natptr->r_index[1] = r_index >> 8; | |
2113 | natptr->r_index[0] = r_index; | |
2114 | natptr->r_type[0] = | |
2115 | (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0) | |
2116 | | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
2117 | } | |
7ed4093a SC |
2118 | |
2119 | PUT_WORD (abfd, r_addend, natptr->r_addend); | |
2120 | } | |
2121 | ||
6db82ea7 SC |
2122 | /* BFD deals internally with all things based from the section they're |
2123 | in. so, something in 10 bytes into a text section with a base of | |
c188b0be | 2124 | 50 would have a symbol (.text+10) and know .text vma was 50. |
6db82ea7 SC |
2125 | |
2126 | Aout keeps all it's symbols based from zero, so the symbol would | |
2127 | contain 60. This macro subs the base of each section from the value | |
2128 | to give the true offset from the section */ | |
2129 | ||
2130 | ||
7ed4093a SC |
2131 | #define MOVE_ADDRESS(ad) \ |
2132 | if (r_extern) { \ | |
6db82ea7 SC |
2133 | /* undefined symbol */ \ |
2134 | cache_ptr->sym_ptr_ptr = symbols + r_index; \ | |
2135 | cache_ptr->addend = ad; \ | |
2136 | } else { \ | |
2137 | /* defined, section relative. replace symbol with pointer to \ | |
2138 | symbol which points to section */ \ | |
7ed4093a SC |
2139 | switch (r_index) { \ |
2140 | case N_TEXT: \ | |
2141 | case N_TEXT | N_EXT: \ | |
6db82ea7 | 2142 | cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr; \ |
7ed4093a SC |
2143 | cache_ptr->addend = ad - su->textsec->vma; \ |
2144 | break; \ | |
2145 | case N_DATA: \ | |
2146 | case N_DATA | N_EXT: \ | |
6db82ea7 | 2147 | cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr; \ |
7ed4093a SC |
2148 | cache_ptr->addend = ad - su->datasec->vma; \ |
2149 | break; \ | |
2150 | case N_BSS: \ | |
2151 | case N_BSS | N_EXT: \ | |
6db82ea7 | 2152 | cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr; \ |
7ed4093a SC |
2153 | cache_ptr->addend = ad - su->bsssec->vma; \ |
2154 | break; \ | |
6db82ea7 | 2155 | default: \ |
7ed4093a SC |
2156 | case N_ABS: \ |
2157 | case N_ABS | N_EXT: \ | |
4587b578 | 2158 | cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \ |
6db82ea7 | 2159 | cache_ptr->addend = ad; \ |
7ed4093a SC |
2160 | break; \ |
2161 | } \ | |
2162 | } \ | |
2163 | ||
2164 | void | |
8eb5d4be JK |
2165 | NAME(aout,swap_ext_reloc_in) (abfd, bytes, cache_ptr, symbols) |
2166 | bfd *abfd; | |
2167 | struct reloc_ext_external *bytes; | |
2168 | arelent *cache_ptr; | |
2169 | asymbol **symbols; | |
7ed4093a SC |
2170 | { |
2171 | int r_index; | |
2172 | int r_extern; | |
2173 | unsigned int r_type; | |
6db82ea7 | 2174 | struct aoutdata *su = &(abfd->tdata.aout_data->a); |
7ed4093a SC |
2175 | |
2176 | cache_ptr->address = (GET_SWORD (abfd, bytes->r_address)); | |
2177 | ||
2178 | /* now the fun stuff */ | |
2179 | if (abfd->xvec->header_byteorder_big_p != false) { | |
382f2a3d ILT |
2180 | r_index = (bytes->r_index[0] << 16) |
2181 | | (bytes->r_index[1] << 8) | |
2182 | | bytes->r_index[2]; | |
7ed4093a SC |
2183 | r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); |
2184 | r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
2185 | >> RELOC_EXT_BITS_TYPE_SH_BIG; | |
2186 | } else { | |
382f2a3d ILT |
2187 | r_index = (bytes->r_index[2] << 16) |
2188 | | (bytes->r_index[1] << 8) | |
2189 | | bytes->r_index[0]; | |
7ed4093a SC |
2190 | r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); |
2191 | r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
2192 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE; | |
2193 | } | |
2194 | ||
2195 | cache_ptr->howto = howto_table_ext + r_type; | |
6db82ea7 | 2196 | MOVE_ADDRESS(GET_SWORD(abfd, bytes->r_addend)); |
7ed4093a SC |
2197 | } |
2198 | ||
2199 | void | |
8eb5d4be JK |
2200 | NAME(aout,swap_std_reloc_in) (abfd, bytes, cache_ptr, symbols) |
2201 | bfd *abfd; | |
2202 | struct reloc_std_external *bytes; | |
2203 | arelent *cache_ptr; | |
2204 | asymbol **symbols; | |
7ed4093a SC |
2205 | { |
2206 | int r_index; | |
2207 | int r_extern; | |
2208 | unsigned int r_length; | |
2209 | int r_pcrel; | |
2210 | int r_baserel, r_jmptable, r_relative; | |
6db82ea7 | 2211 | struct aoutdata *su = &(abfd->tdata.aout_data->a); |
c188b0be | 2212 | int howto_idx; |
7ed4093a | 2213 | |
34dd8ba3 | 2214 | cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address); |
7ed4093a SC |
2215 | |
2216 | /* now the fun stuff */ | |
2217 | if (abfd->xvec->header_byteorder_big_p != false) { | |
382f2a3d ILT |
2218 | r_index = (bytes->r_index[0] << 16) |
2219 | | (bytes->r_index[1] << 8) | |
2220 | | bytes->r_index[2]; | |
7ed4093a SC |
2221 | r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG)); |
2222 | r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
2223 | r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
2224 | r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
2225 | r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG)); | |
c188b0be | 2226 | r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) |
7ed4093a SC |
2227 | >> RELOC_STD_BITS_LENGTH_SH_BIG; |
2228 | } else { | |
382f2a3d ILT |
2229 | r_index = (bytes->r_index[2] << 16) |
2230 | | (bytes->r_index[1] << 8) | |
2231 | | bytes->r_index[0]; | |
7ed4093a SC |
2232 | r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE)); |
2233 | r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
2234 | r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
2235 | r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
2236 | r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE)); | |
c188b0be | 2237 | r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) |
7ed4093a SC |
2238 | >> RELOC_STD_BITS_LENGTH_SH_LITTLE; |
2239 | } | |
2240 | ||
cb9461ff JK |
2241 | howto_idx = r_length + 4 * r_pcrel + 8 * r_baserel |
2242 | + 16 * r_jmptable + 32 * r_relative; | |
c188b0be DM |
2243 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std)); |
2244 | cache_ptr->howto = howto_table_std + howto_idx; | |
2245 | BFD_ASSERT (cache_ptr->howto->type != -1); | |
7ed4093a SC |
2246 | |
2247 | MOVE_ADDRESS(0); | |
2248 | } | |
2249 | ||
5c8444f8 | 2250 | /* Read and swap the relocs for a section. */ |
7ed4093a SC |
2251 | |
2252 | boolean | |
8eb5d4be JK |
2253 | NAME(aout,slurp_reloc_table) (abfd, asect, symbols) |
2254 | bfd *abfd; | |
2255 | sec_ptr asect; | |
2256 | asymbol **symbols; | |
7ed4093a SC |
2257 | { |
2258 | unsigned int count; | |
2259 | bfd_size_type reloc_size; | |
2260 | PTR relocs; | |
2261 | arelent *reloc_cache; | |
2262 | size_t each_size; | |
0ee75d02 ILT |
2263 | unsigned int counter = 0; |
2264 | arelent *cache_ptr; | |
7ed4093a | 2265 | |
5c8444f8 ILT |
2266 | if (asect->relocation) |
2267 | return true; | |
7ed4093a | 2268 | |
5c8444f8 ILT |
2269 | if (asect->flags & SEC_CONSTRUCTOR) |
2270 | return true; | |
7ed4093a | 2271 | |
0ee75d02 | 2272 | if (asect == obj_datasec (abfd)) |
7ed4093a | 2273 | reloc_size = exec_hdr(abfd)->a_drsize; |
0ee75d02 | 2274 | else if (asect == obj_textsec (abfd)) |
7ed4093a | 2275 | reloc_size = exec_hdr(abfd)->a_trsize; |
0ee75d02 ILT |
2276 | else |
2277 | { | |
68241b2b | 2278 | bfd_set_error (bfd_error_invalid_operation); |
0ee75d02 ILT |
2279 | return false; |
2280 | } | |
2281 | ||
5c8444f8 ILT |
2282 | if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0) |
2283 | return false; | |
2284 | ||
7ed4093a SC |
2285 | each_size = obj_reloc_entry_size (abfd); |
2286 | ||
2287 | count = reloc_size / each_size; | |
2288 | ||
fa77c704 | 2289 | reloc_cache = (arelent *) malloc ((size_t) (count * sizeof (arelent))); |
5c8444f8 | 2290 | if (reloc_cache == NULL && count != 0) |
0ee75d02 | 2291 | { |
68241b2b | 2292 | bfd_set_error (bfd_error_no_memory); |
0ee75d02 ILT |
2293 | return false; |
2294 | } | |
fa77c704 | 2295 | memset (reloc_cache, 0, count * sizeof (arelent)); |
7ed4093a | 2296 | |
5c8444f8 ILT |
2297 | relocs = malloc (reloc_size); |
2298 | if (relocs == NULL && reloc_size != 0) | |
0ee75d02 | 2299 | { |
5c8444f8 ILT |
2300 | free (reloc_cache); |
2301 | bfd_set_error (bfd_error_no_memory); | |
2302 | return false; | |
0ee75d02 | 2303 | } |
7ed4093a | 2304 | |
0ee75d02 ILT |
2305 | if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) |
2306 | { | |
5c8444f8 ILT |
2307 | free (relocs); |
2308 | free (reloc_cache); | |
0ee75d02 ILT |
2309 | return false; |
2310 | } | |
7ed4093a | 2311 | |
0ee75d02 ILT |
2312 | cache_ptr = reloc_cache; |
2313 | if (each_size == RELOC_EXT_SIZE) | |
2314 | { | |
2315 | register struct reloc_ext_external *rptr = | |
2316 | (struct reloc_ext_external *) relocs; | |
7ed4093a | 2317 | |
0ee75d02 ILT |
2318 | for (; counter < count; counter++, rptr++, cache_ptr++) |
2319 | NAME(aout,swap_ext_reloc_in) (abfd, rptr, cache_ptr, symbols); | |
7ed4093a | 2320 | } |
0ee75d02 ILT |
2321 | else |
2322 | { | |
5c8444f8 ILT |
2323 | register struct reloc_std_external *rptr = |
2324 | (struct reloc_std_external *) relocs; | |
7ed4093a | 2325 | |
0ee75d02 ILT |
2326 | for (; counter < count; counter++, rptr++, cache_ptr++) |
2327 | NAME(aout,swap_std_reloc_in) (abfd, rptr, cache_ptr, symbols); | |
7ed4093a SC |
2328 | } |
2329 | ||
5c8444f8 ILT |
2330 | free (relocs); |
2331 | ||
7ed4093a | 2332 | asect->relocation = reloc_cache; |
0ee75d02 | 2333 | asect->reloc_count = cache_ptr - reloc_cache; |
5c8444f8 | 2334 | |
7ed4093a SC |
2335 | return true; |
2336 | } | |
2337 | ||
7ed4093a SC |
2338 | /* Write out a relocation section into an object file. */ |
2339 | ||
2340 | boolean | |
8eb5d4be JK |
2341 | NAME(aout,squirt_out_relocs) (abfd, section) |
2342 | bfd *abfd; | |
2343 | asection *section; | |
7ed4093a SC |
2344 | { |
2345 | arelent **generic; | |
2346 | unsigned char *native, *natptr; | |
2347 | size_t each_size; | |
2348 | ||
2349 | unsigned int count = section->reloc_count; | |
2350 | size_t natsize; | |
2351 | ||
2352 | if (count == 0) return true; | |
2353 | ||
2354 | each_size = obj_reloc_entry_size (abfd); | |
2355 | natsize = each_size * count; | |
2356 | native = (unsigned char *) bfd_zalloc (abfd, natsize); | |
2357 | if (!native) { | |
68241b2b | 2358 | bfd_set_error (bfd_error_no_memory); |
7ed4093a SC |
2359 | return false; |
2360 | } | |
2361 | ||
2362 | generic = section->orelocation; | |
2363 | ||
c188b0be | 2364 | if (each_size == RELOC_EXT_SIZE) |
7ed4093a SC |
2365 | { |
2366 | for (natptr = native; | |
2367 | count != 0; | |
2368 | --count, natptr += each_size, ++generic) | |
2369 | NAME(aout,swap_ext_reloc_out) (abfd, *generic, (struct reloc_ext_external *)natptr); | |
2370 | } | |
c188b0be | 2371 | else |
7ed4093a SC |
2372 | { |
2373 | for (natptr = native; | |
2374 | count != 0; | |
2375 | --count, natptr += each_size, ++generic) | |
2376 | NAME(aout,swap_std_reloc_out)(abfd, *generic, (struct reloc_std_external *)natptr); | |
2377 | } | |
2378 | ||
2379 | if ( bfd_write ((PTR) native, 1, natsize, abfd) != natsize) { | |
2380 | bfd_release(abfd, native); | |
2381 | return false; | |
2382 | } | |
2383 | bfd_release (abfd, native); | |
2384 | ||
2385 | return true; | |
2386 | } | |
2387 | ||
2388 | /* This is stupid. This function should be a boolean predicate */ | |
326e32d7 | 2389 | long |
8eb5d4be JK |
2390 | NAME(aout,canonicalize_reloc) (abfd, section, relptr, symbols) |
2391 | bfd *abfd; | |
2392 | sec_ptr section; | |
2393 | arelent **relptr; | |
2394 | asymbol **symbols; | |
7ed4093a SC |
2395 | { |
2396 | arelent *tblptr = section->relocation; | |
2397 | unsigned int count; | |
2398 | ||
4f019d04 ILT |
2399 | if (section == obj_bsssec (abfd)) |
2400 | { | |
2401 | *relptr = NULL; | |
2402 | return 0; | |
2403 | } | |
2404 | ||
7ed4093a | 2405 | if (!(tblptr || NAME(aout,slurp_reloc_table)(abfd, section, symbols))) |
326e32d7 | 2406 | return -1; |
7ed4093a SC |
2407 | |
2408 | if (section->flags & SEC_CONSTRUCTOR) { | |
2409 | arelent_chain *chain = section->constructor_chain; | |
2410 | for (count = 0; count < section->reloc_count; count ++) { | |
2411 | *relptr ++ = &chain->relent; | |
2412 | chain = chain->next; | |
2413 | } | |
2414 | } | |
2415 | else { | |
2416 | tblptr = section->relocation; | |
7ed4093a | 2417 | |
c188b0be | 2418 | for (count = 0; count++ < section->reloc_count;) |
7ed4093a SC |
2419 | { |
2420 | *relptr++ = tblptr++; | |
2421 | } | |
2422 | } | |
2423 | *relptr = 0; | |
2424 | ||
2425 | return section->reloc_count; | |
2426 | } | |
2427 | ||
326e32d7 | 2428 | long |
8eb5d4be JK |
2429 | NAME(aout,get_reloc_upper_bound) (abfd, asect) |
2430 | bfd *abfd; | |
2431 | sec_ptr asect; | |
7ed4093a SC |
2432 | { |
2433 | if (bfd_get_format (abfd) != bfd_object) { | |
68241b2b | 2434 | bfd_set_error (bfd_error_invalid_operation); |
326e32d7 | 2435 | return -1; |
7ed4093a SC |
2436 | } |
2437 | if (asect->flags & SEC_CONSTRUCTOR) { | |
2438 | return (sizeof (arelent *) * (asect->reloc_count+1)); | |
2439 | } | |
2440 | ||
7ed4093a | 2441 | if (asect == obj_datasec (abfd)) |
fa77c704 ILT |
2442 | return (sizeof (arelent *) |
2443 | * ((exec_hdr(abfd)->a_drsize / obj_reloc_entry_size (abfd)) | |
2444 | + 1)); | |
7ed4093a SC |
2445 | |
2446 | if (asect == obj_textsec (abfd)) | |
fa77c704 ILT |
2447 | return (sizeof (arelent *) |
2448 | * ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd)) | |
2449 | + 1)); | |
7ed4093a | 2450 | |
4f019d04 ILT |
2451 | if (asect == obj_bsssec (abfd)) |
2452 | return sizeof (arelent *); | |
2453 | ||
68241b2b | 2454 | bfd_set_error (bfd_error_invalid_operation); |
326e32d7 | 2455 | return -1; |
7ed4093a SC |
2456 | } |
2457 | ||
2458 | \f | |
326e32d7 | 2459 | long |
8eb5d4be JK |
2460 | NAME(aout,get_symtab_upper_bound) (abfd) |
2461 | bfd *abfd; | |
7ed4093a | 2462 | { |
326e32d7 ILT |
2463 | if (!NAME(aout,slurp_symbol_table)(abfd)) |
2464 | return -1; | |
7ed4093a SC |
2465 | |
2466 | return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *)); | |
2467 | } | |
728472f1 ILT |
2468 | |
2469 | /*ARGSUSED*/ | |
7ed4093a | 2470 | alent * |
8eb5d4be JK |
2471 | NAME(aout,get_lineno) (ignore_abfd, ignore_symbol) |
2472 | bfd *ignore_abfd; | |
2473 | asymbol *ignore_symbol; | |
7ed4093a SC |
2474 | { |
2475 | return (alent *)NULL; | |
2476 | } | |
2477 | ||
728472f1 | 2478 | /*ARGSUSED*/ |
c188b0be | 2479 | void |
8eb5d4be JK |
2480 | NAME(aout,get_symbol_info) (ignore_abfd, symbol, ret) |
2481 | bfd *ignore_abfd; | |
2482 | asymbol *symbol; | |
2483 | symbol_info *ret; | |
34dd8ba3 JG |
2484 | { |
2485 | bfd_symbol_info (symbol, ret); | |
2486 | ||
2487 | if (ret->type == '?') | |
2488 | { | |
2489 | int type_code = aout_symbol(symbol)->type & 0xff; | |
2490 | CONST char *stab_name = aout_stab_name(type_code); | |
2491 | static char buf[10]; | |
2492 | ||
2493 | if (stab_name == NULL) | |
2494 | { | |
2495 | sprintf(buf, "(%d)", type_code); | |
2496 | stab_name = buf; | |
2497 | } | |
2498 | ret->type = '-'; | |
2499 | ret->stab_other = (unsigned)(aout_symbol(symbol)->other & 0xff); | |
2500 | ret->stab_desc = (unsigned)(aout_symbol(symbol)->desc & 0xffff); | |
2501 | ret->stab_name = stab_name; | |
2502 | } | |
2503 | } | |
7ed4093a | 2504 | |
728472f1 | 2505 | /*ARGSUSED*/ |
c188b0be | 2506 | void |
8eb5d4be JK |
2507 | NAME(aout,print_symbol) (ignore_abfd, afile, symbol, how) |
2508 | bfd *ignore_abfd; | |
2509 | PTR afile; | |
2510 | asymbol *symbol; | |
2511 | bfd_print_symbol_type how; | |
7ed4093a SC |
2512 | { |
2513 | FILE *file = (FILE *)afile; | |
2514 | ||
2515 | switch (how) { | |
9e2dad8e | 2516 | case bfd_print_symbol_name: |
fb3be09b JG |
2517 | if (symbol->name) |
2518 | fprintf(file,"%s", symbol->name); | |
7ed4093a | 2519 | break; |
9e2dad8e | 2520 | case bfd_print_symbol_more: |
7ed4093a SC |
2521 | fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff), |
2522 | (unsigned)(aout_symbol(symbol)->other & 0xff), | |
2523 | (unsigned)(aout_symbol(symbol)->type)); | |
2524 | break; | |
9e2dad8e | 2525 | case bfd_print_symbol_all: |
7ed4093a | 2526 | { |
6db82ea7 SC |
2527 | CONST char *section_name = symbol->section->name; |
2528 | ||
7ed4093a SC |
2529 | |
2530 | bfd_print_symbol_vandf((PTR)file,symbol); | |
2531 | ||
fb3be09b | 2532 | fprintf(file," %-5s %04x %02x %02x", |
7ed4093a SC |
2533 | section_name, |
2534 | (unsigned)(aout_symbol(symbol)->desc & 0xffff), | |
2535 | (unsigned)(aout_symbol(symbol)->other & 0xff), | |
9e2dad8e | 2536 | (unsigned)(aout_symbol(symbol)->type & 0xff)); |
fb3be09b JG |
2537 | if (symbol->name) |
2538 | fprintf(file," %s", symbol->name); | |
7ed4093a SC |
2539 | } |
2540 | break; | |
2541 | } | |
2542 | } | |
2543 | ||
c188b0be | 2544 | /* |
6724ff46 | 2545 | provided a BFD, a section and an offset into the section, calculate |
7ed4093a SC |
2546 | and return the name of the source file and the line nearest to the |
2547 | wanted location. | |
2548 | */ | |
c188b0be | 2549 | |
7ed4093a | 2550 | boolean |
8eb5d4be JK |
2551 | NAME(aout,find_nearest_line) |
2552 | (abfd, section, symbols, offset, filename_ptr, functionname_ptr, line_ptr) | |
2553 | bfd *abfd; | |
2554 | asection *section; | |
2555 | asymbol **symbols; | |
2556 | bfd_vma offset; | |
2557 | CONST char **filename_ptr; | |
2558 | CONST char **functionname_ptr; | |
2559 | unsigned int *line_ptr; | |
7ed4093a SC |
2560 | { |
2561 | /* Run down the file looking for the filename, function and linenumber */ | |
2562 | asymbol **p; | |
2563 | static char buffer[100]; | |
98d43107 | 2564 | static char filename_buffer[200]; |
6db82ea7 SC |
2565 | CONST char *directory_name = NULL; |
2566 | CONST char *main_file_name = NULL; | |
2567 | CONST char *current_file_name = NULL; | |
2568 | CONST char *line_file_name = NULL; /* Value of current_file_name at line number. */ | |
7ed4093a SC |
2569 | bfd_vma high_line_vma = ~0; |
2570 | bfd_vma low_func_vma = 0; | |
2571 | asymbol *func = 0; | |
2572 | *filename_ptr = abfd->filename; | |
2573 | *functionname_ptr = 0; | |
2574 | *line_ptr = 0; | |
2575 | if (symbols != (asymbol **)NULL) { | |
2576 | for (p = symbols; *p; p++) { | |
2577 | aout_symbol_type *q = (aout_symbol_type *)(*p); | |
98d43107 | 2578 | next: |
7ed4093a SC |
2579 | switch (q->type){ |
2580 | case N_SO: | |
3f7607af | 2581 | main_file_name = current_file_name = q->symbol.name; |
98d43107 JG |
2582 | /* Look ahead to next symbol to check if that too is an N_SO. */ |
2583 | p++; | |
2584 | if (*p == NULL) | |
2585 | break; | |
2586 | q = (aout_symbol_type *)(*p); | |
6db82ea7 | 2587 | if (q->type != (int)N_SO) |
98d43107 JG |
2588 | goto next; |
2589 | ||
2590 | /* Found a second N_SO First is directory; second is filename. */ | |
3f7607af PB |
2591 | directory_name = current_file_name; |
2592 | main_file_name = current_file_name = q->symbol.name; | |
2593 | if (obj_textsec(abfd) != section) | |
2594 | goto done; | |
2595 | break; | |
2596 | case N_SOL: | |
2597 | current_file_name = q->symbol.name; | |
7ed4093a | 2598 | break; |
3f7607af | 2599 | |
7ed4093a SC |
2600 | case N_SLINE: |
2601 | ||
2602 | case N_DSLINE: | |
2603 | case N_BSLINE: | |
2604 | /* We'll keep this if it resolves nearer than the one we have already */ | |
2605 | if (q->symbol.value >= offset && | |
2606 | q->symbol.value < high_line_vma) { | |
2607 | *line_ptr = q->desc; | |
2608 | high_line_vma = q->symbol.value; | |
3f7607af | 2609 | line_file_name = current_file_name; |
7ed4093a SC |
2610 | } |
2611 | break; | |
2612 | case N_FUN: | |
2613 | { | |
2614 | /* We'll keep this if it is nearer than the one we have already */ | |
2615 | if (q->symbol.value >= low_func_vma && | |
2616 | q->symbol.value <= offset) { | |
2617 | low_func_vma = q->symbol.value; | |
2618 | func = (asymbol *)q; | |
2619 | } | |
2620 | if (*line_ptr && func) { | |
2621 | CONST char *function = func->name; | |
2622 | char *p; | |
ec099b4b | 2623 | |
91f300d6 | 2624 | /* The caller expects a symbol name. We actually have a |
ec099b4b ILT |
2625 | function name, without the leading underscore. Put the |
2626 | underscore back in, so that the caller gets a symbol | |
2627 | name. */ | |
2628 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
2629 | strncpy (buffer, function, sizeof (buffer) - 1); | |
2630 | else | |
2631 | { | |
2632 | buffer[0] = bfd_get_symbol_leading_char (abfd); | |
2633 | strncpy (buffer + 1, function, sizeof (buffer) - 2); | |
2634 | } | |
7ed4093a SC |
2635 | buffer[sizeof(buffer)-1] = 0; |
2636 | /* Have to remove : stuff */ | |
2637 | p = strchr(buffer,':'); | |
7b02b4ed | 2638 | if (p != NULL) { *p = '\0'; } |
7ed4093a | 2639 | *functionname_ptr = buffer; |
3f7607af | 2640 | goto done; |
7ed4093a SC |
2641 | |
2642 | } | |
2643 | } | |
2644 | break; | |
2645 | } | |
2646 | } | |
2647 | } | |
3f7607af PB |
2648 | |
2649 | done: | |
2650 | if (*line_ptr) | |
2651 | main_file_name = line_file_name; | |
2652 | if (main_file_name) { | |
2653 | if (main_file_name[0] == '/' || directory_name == NULL) | |
2654 | *filename_ptr = main_file_name; | |
2655 | else { | |
2656 | sprintf(filename_buffer, "%.140s%.50s", | |
2657 | directory_name, main_file_name); | |
2658 | *filename_ptr = filename_buffer; | |
2659 | } | |
2660 | } | |
7ed4093a SC |
2661 | return true; |
2662 | ||
2663 | } | |
2664 | ||
728472f1 | 2665 | /*ARGSUSED*/ |
c188b0be | 2666 | int |
8eb5d4be JK |
2667 | NAME(aout,sizeof_headers) (abfd, execable) |
2668 | bfd *abfd; | |
2669 | boolean execable; | |
7ed4093a | 2670 | { |
6db82ea7 | 2671 | return adata(abfd).exec_bytes_size; |
7ed4093a | 2672 | } |
5c8444f8 ILT |
2673 | |
2674 | /* Free all information we have cached for this BFD. We can always | |
2675 | read it again later if we need it. */ | |
2676 | ||
2677 | boolean | |
2678 | NAME(aout,bfd_free_cached_info) (abfd) | |
2679 | bfd *abfd; | |
2680 | { | |
2681 | asection *o; | |
2682 | ||
c4dd531f ILT |
2683 | if (bfd_get_format (abfd) != bfd_object) |
2684 | return true; | |
2685 | ||
5c8444f8 ILT |
2686 | #define FREE(x) if (x != NULL) { free (x); x = NULL; } |
2687 | FREE (obj_aout_symbols (abfd)); | |
2688 | FREE (obj_aout_external_syms (abfd)); | |
2689 | FREE (obj_aout_external_strings (abfd)); | |
2690 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2691 | FREE (o->relocation); | |
2692 | #undef FREE | |
2693 | ||
2694 | return true; | |
2695 | } | |
4c3721d5 ILT |
2696 | \f |
2697 | /* a.out link code. */ | |
2698 | ||
4c3721d5 ILT |
2699 | static boolean aout_link_add_object_symbols |
2700 | PARAMS ((bfd *, struct bfd_link_info *)); | |
2701 | static boolean aout_link_check_archive_element | |
2702 | PARAMS ((bfd *, struct bfd_link_info *, boolean *)); | |
4c3721d5 ILT |
2703 | static boolean aout_link_free_symbols PARAMS ((bfd *)); |
2704 | static boolean aout_link_check_ar_symbols | |
2705 | PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded)); | |
2706 | static boolean aout_link_add_symbols | |
2707 | PARAMS ((bfd *, struct bfd_link_info *)); | |
2708 | ||
2709 | /* Routine to create an entry in an a.out link hash table. */ | |
2710 | ||
e85e8bfe ILT |
2711 | struct bfd_hash_entry * |
2712 | NAME(aout,link_hash_newfunc) (entry, table, string) | |
4c3721d5 ILT |
2713 | struct bfd_hash_entry *entry; |
2714 | struct bfd_hash_table *table; | |
2715 | const char *string; | |
2716 | { | |
2717 | struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry; | |
2718 | ||
2719 | /* Allocate the structure if it has not already been allocated by a | |
2720 | subclass. */ | |
2721 | if (ret == (struct aout_link_hash_entry *) NULL) | |
2722 | ret = ((struct aout_link_hash_entry *) | |
2723 | bfd_hash_allocate (table, sizeof (struct aout_link_hash_entry))); | |
9783e04a DM |
2724 | if (ret == (struct aout_link_hash_entry *) NULL) |
2725 | { | |
68241b2b | 2726 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2727 | return (struct bfd_hash_entry *) ret; |
2728 | } | |
4c3721d5 ILT |
2729 | |
2730 | /* Call the allocation method of the superclass. */ | |
2731 | ret = ((struct aout_link_hash_entry *) | |
2732 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
2733 | table, string)); | |
9783e04a | 2734 | if (ret) |
35fee729 ILT |
2735 | { |
2736 | /* Set local fields. */ | |
2737 | ret->written = false; | |
2738 | ret->indx = -1; | |
2739 | } | |
4c3721d5 ILT |
2740 | |
2741 | return (struct bfd_hash_entry *) ret; | |
2742 | } | |
2743 | ||
e85e8bfe ILT |
2744 | /* Initialize an a.out link hash table. */ |
2745 | ||
2746 | boolean | |
2747 | NAME(aout,link_hash_table_init) (table, abfd, newfunc) | |
2748 | struct aout_link_hash_table *table; | |
2749 | bfd *abfd; | |
2750 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
2751 | struct bfd_hash_table *, | |
2752 | const char *)); | |
2753 | { | |
2754 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc); | |
2755 | } | |
2756 | ||
4c3721d5 ILT |
2757 | /* Create an a.out link hash table. */ |
2758 | ||
2759 | struct bfd_link_hash_table * | |
2760 | NAME(aout,link_hash_table_create) (abfd) | |
2761 | bfd *abfd; | |
2762 | { | |
2763 | struct aout_link_hash_table *ret; | |
2764 | ||
2765 | ret = ((struct aout_link_hash_table *) | |
9783e04a DM |
2766 | malloc (sizeof (struct aout_link_hash_table))); |
2767 | if (ret == (struct aout_link_hash_table *) NULL) | |
2768 | { | |
68241b2b | 2769 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
2770 | return (struct bfd_link_hash_table *) NULL; |
2771 | } | |
e85e8bfe ILT |
2772 | if (! NAME(aout,link_hash_table_init) (ret, abfd, |
2773 | NAME(aout,link_hash_newfunc))) | |
4c3721d5 ILT |
2774 | { |
2775 | free (ret); | |
2776 | return (struct bfd_link_hash_table *) NULL; | |
2777 | } | |
2778 | return &ret->root; | |
2779 | } | |
2780 | ||
4c3721d5 ILT |
2781 | /* Given an a.out BFD, add symbols to the global hash table as |
2782 | appropriate. */ | |
2783 | ||
2784 | boolean | |
2785 | NAME(aout,link_add_symbols) (abfd, info) | |
2786 | bfd *abfd; | |
2787 | struct bfd_link_info *info; | |
2788 | { | |
2789 | switch (bfd_get_format (abfd)) | |
2790 | { | |
2791 | case bfd_object: | |
2792 | return aout_link_add_object_symbols (abfd, info); | |
2793 | case bfd_archive: | |
2794 | return _bfd_generic_link_add_archive_symbols | |
2795 | (abfd, info, aout_link_check_archive_element); | |
2796 | default: | |
68241b2b | 2797 | bfd_set_error (bfd_error_wrong_format); |
4c3721d5 ILT |
2798 | return false; |
2799 | } | |
2800 | } | |
2801 | ||
2802 | /* Add symbols from an a.out object file. */ | |
2803 | ||
2804 | static boolean | |
2805 | aout_link_add_object_symbols (abfd, info) | |
2806 | bfd *abfd; | |
2807 | struct bfd_link_info *info; | |
2808 | { | |
5c8444f8 | 2809 | if (! aout_get_external_symbols (abfd)) |
4c3721d5 ILT |
2810 | return false; |
2811 | if (! aout_link_add_symbols (abfd, info)) | |
2812 | return false; | |
2813 | if (! info->keep_memory) | |
2814 | { | |
2815 | if (! aout_link_free_symbols (abfd)) | |
2816 | return false; | |
2817 | } | |
2818 | return true; | |
2819 | } | |
2820 | ||
2821 | /* Check a single archive element to see if we need to include it in | |
2822 | the link. *PNEEDED is set according to whether this element is | |
2823 | needed in the link or not. This is called from | |
2824 | _bfd_generic_link_add_archive_symbols. */ | |
2825 | ||
2826 | static boolean | |
2827 | aout_link_check_archive_element (abfd, info, pneeded) | |
2828 | bfd *abfd; | |
2829 | struct bfd_link_info *info; | |
2830 | boolean *pneeded; | |
2831 | { | |
5c8444f8 | 2832 | if (! aout_get_external_symbols (abfd)) |
4c3721d5 ILT |
2833 | return false; |
2834 | ||
2835 | if (! aout_link_check_ar_symbols (abfd, info, pneeded)) | |
2836 | return false; | |
2837 | ||
2838 | if (*pneeded) | |
2839 | { | |
2840 | if (! aout_link_add_symbols (abfd, info)) | |
2841 | return false; | |
2842 | } | |
2843 | ||
2844 | /* We keep around the symbols even if we aren't going to use this | |
2845 | object file, because we may want to reread it. This doesn't | |
2846 | waste too much memory, because it isn't all that common to read | |
2847 | an archive element but not need it. */ | |
2848 | if (! info->keep_memory) | |
2849 | { | |
2850 | if (! aout_link_free_symbols (abfd)) | |
2851 | return false; | |
2852 | } | |
2853 | ||
2854 | return true; | |
2855 | } | |
2856 | ||
4c3721d5 ILT |
2857 | /* Free up the internal symbols read from an a.out file. */ |
2858 | ||
2859 | static boolean | |
2860 | aout_link_free_symbols (abfd) | |
2861 | bfd *abfd; | |
2862 | { | |
2863 | if (obj_aout_external_syms (abfd) != (struct external_nlist *) NULL) | |
2864 | { | |
2865 | free ((PTR) obj_aout_external_syms (abfd)); | |
2866 | obj_aout_external_syms (abfd) = (struct external_nlist *) NULL; | |
2867 | } | |
2868 | if (obj_aout_external_strings (abfd) != (char *) NULL) | |
2869 | { | |
2870 | free ((PTR) obj_aout_external_strings (abfd)); | |
2871 | obj_aout_external_strings (abfd) = (char *) NULL; | |
2872 | } | |
2873 | return true; | |
2874 | } | |
2875 | ||
2876 | /* Look through the internal symbols to see if this object file should | |
2877 | be included in the link. We should include this object file if it | |
2878 | defines any symbols which are currently undefined. If this object | |
2879 | file defines a common symbol, then we may adjust the size of the | |
2880 | known symbol but we do not include the object file in the link | |
2881 | (unless there is some other reason to include it). */ | |
2882 | ||
2883 | static boolean | |
2884 | aout_link_check_ar_symbols (abfd, info, pneeded) | |
2885 | bfd *abfd; | |
2886 | struct bfd_link_info *info; | |
2887 | boolean *pneeded; | |
2888 | { | |
2889 | register struct external_nlist *p; | |
2890 | struct external_nlist *pend; | |
2891 | char *strings; | |
2892 | ||
2893 | *pneeded = false; | |
2894 | ||
2895 | /* Look through all the symbols. */ | |
2896 | p = obj_aout_external_syms (abfd); | |
2897 | pend = p + obj_aout_external_sym_count (abfd); | |
2898 | strings = obj_aout_external_strings (abfd); | |
2899 | for (; p < pend; p++) | |
2900 | { | |
2901 | int type = bfd_h_get_8 (abfd, p->e_type); | |
2902 | const char *name; | |
2903 | struct bfd_link_hash_entry *h; | |
2904 | ||
4298e311 ILT |
2905 | /* Ignore symbols that are not externally visible. This is an |
2906 | optimization only, as we check the type more thoroughly | |
2907 | below. */ | |
4587b578 ILT |
2908 | if (((type & N_EXT) == 0 |
2909 | || (type & N_STAB) != 0 | |
2910 | || type == N_FN) | |
4298e311 ILT |
2911 | && type != N_WEAKA |
2912 | && type != N_WEAKT | |
2913 | && type != N_WEAKD | |
2914 | && type != N_WEAKB) | |
9b39ed6b ILT |
2915 | { |
2916 | if (type == N_WARNING | |
2917 | || type == N_INDR) | |
2918 | ++p; | |
2919 | continue; | |
2920 | } | |
4c3721d5 ILT |
2921 | |
2922 | name = strings + GET_WORD (abfd, p->e_strx); | |
2923 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); | |
2924 | ||
2925 | /* We are only interested in symbols that are currently | |
2926 | undefined or common. */ | |
2927 | if (h == (struct bfd_link_hash_entry *) NULL | |
2928 | || (h->type != bfd_link_hash_undefined | |
2929 | && h->type != bfd_link_hash_common)) | |
9b39ed6b ILT |
2930 | { |
2931 | if (type == (N_INDR | N_EXT)) | |
2932 | ++p; | |
2933 | continue; | |
2934 | } | |
4c3721d5 | 2935 | |
9b39ed6b ILT |
2936 | if (type == (N_TEXT | N_EXT) |
2937 | || type == (N_DATA | N_EXT) | |
2938 | || type == (N_BSS | N_EXT) | |
2939 | || type == (N_ABS | N_EXT) | |
2940 | || type == (N_INDR | N_EXT)) | |
4c3721d5 ILT |
2941 | { |
2942 | /* This object file defines this symbol. We must link it | |
2943 | in. This is true regardless of whether the current | |
2944 | definition of the symbol is undefined or common. If the | |
2945 | current definition is common, we have a case in which we | |
2946 | have already seen an object file including | |
2947 | int a; | |
2948 | and this object file from the archive includes | |
2949 | int a = 5; | |
f88c9008 ILT |
2950 | In such a case we must include this object file. |
2951 | ||
2952 | FIXME: The SunOS 4.1.3 linker will pull in the archive | |
2953 | element if the symbol is defined in the .data section, | |
2954 | but not if it is defined in the .text section. That | |
2955 | seems a bit crazy to me, and I haven't implemented it. | |
2956 | However, it might be correct. */ | |
4c3721d5 ILT |
2957 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) |
2958 | return false; | |
2959 | *pneeded = true; | |
2960 | return true; | |
2961 | } | |
2962 | ||
9b39ed6b | 2963 | if (type == (N_UNDF | N_EXT)) |
4c3721d5 ILT |
2964 | { |
2965 | bfd_vma value; | |
2966 | ||
2967 | value = GET_WORD (abfd, p->e_value); | |
2968 | if (value != 0) | |
2969 | { | |
2970 | /* This symbol is common in the object from the archive | |
2971 | file. */ | |
2972 | if (h->type == bfd_link_hash_undefined) | |
2973 | { | |
2974 | bfd *symbfd; | |
2975 | ||
2976 | symbfd = h->u.undef.abfd; | |
2977 | if (symbfd == (bfd *) NULL) | |
2978 | { | |
2979 | /* This symbol was created as undefined from | |
2980 | outside BFD. We assume that we should link | |
2981 | in the object file. This is done for the -u | |
2982 | option in the linker. */ | |
2983 | if (! (*info->callbacks->add_archive_element) (info, | |
2984 | abfd, | |
2985 | name)) | |
2986 | return false; | |
2987 | *pneeded = true; | |
2988 | return true; | |
2989 | } | |
2990 | /* Turn the current link symbol into a common | |
2991 | symbol. It is already on the undefs list. */ | |
2992 | h->type = bfd_link_hash_common; | |
2993 | h->u.c.size = value; | |
2994 | h->u.c.section = bfd_make_section_old_way (symbfd, | |
2995 | "COMMON"); | |
2996 | } | |
2997 | else | |
2998 | { | |
2999 | /* Adjust the size of the common symbol if | |
3000 | necessary. */ | |
3001 | if (value > h->u.c.size) | |
3002 | h->u.c.size = value; | |
3003 | } | |
3004 | } | |
3005 | } | |
4298e311 ILT |
3006 | |
3007 | if (type == N_WEAKA | |
3008 | || type == N_WEAKT | |
3009 | || type == N_WEAKD | |
3010 | || type == N_WEAKB) | |
3011 | { | |
3012 | /* This symbol is weak but defined. We must pull it in if | |
3013 | the current link symbol is undefined, but we don't want | |
3014 | it if the current link symbol is common. */ | |
3015 | if (h->type == bfd_link_hash_undefined) | |
3016 | { | |
3017 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
3018 | return false; | |
3019 | *pneeded = true; | |
3020 | return true; | |
3021 | } | |
3022 | } | |
4c3721d5 ILT |
3023 | } |
3024 | ||
3025 | /* We do not need this object file. */ | |
3026 | return true; | |
3027 | } | |
3028 | ||
3029 | /* Add all symbols from an object file to the hash table. */ | |
3030 | ||
3031 | static boolean | |
3032 | aout_link_add_symbols (abfd, info) | |
3033 | bfd *abfd; | |
3034 | struct bfd_link_info *info; | |
3035 | { | |
e85e8bfe ILT |
3036 | boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *, |
3037 | const char *, flagword, asection *, | |
3038 | bfd_vma, const char *, boolean, | |
3039 | boolean, | |
3040 | struct bfd_link_hash_entry **)); | |
4c3721d5 ILT |
3041 | bfd_size_type sym_count; |
3042 | char *strings; | |
3043 | boolean copy; | |
3044 | struct aout_link_hash_entry **sym_hash; | |
3045 | register struct external_nlist *p; | |
3046 | struct external_nlist *pend; | |
3047 | ||
3048 | sym_count = obj_aout_external_sym_count (abfd); | |
3049 | strings = obj_aout_external_strings (abfd); | |
3050 | if (info->keep_memory) | |
3051 | copy = false; | |
3052 | else | |
3053 | copy = true; | |
3054 | ||
4c3721d5 ILT |
3055 | /* We keep a list of the linker hash table entries that correspond |
3056 | to particular symbols. We could just look them up in the hash | |
3057 | table, but keeping the list is more efficient. Perhaps this | |
3058 | should be conditional on info->keep_memory. */ | |
3059 | sym_hash = ((struct aout_link_hash_entry **) | |
3060 | bfd_alloc (abfd, | |
3061 | ((size_t) sym_count | |
3062 | * sizeof (struct aout_link_hash_entry *)))); | |
e85e8bfe | 3063 | if (sym_hash == NULL && sym_count != 0) |
9783e04a | 3064 | { |
68241b2b | 3065 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3066 | return false; |
3067 | } | |
4c3721d5 ILT |
3068 | obj_aout_sym_hashes (abfd) = sym_hash; |
3069 | ||
e85e8bfe ILT |
3070 | if ((abfd->flags & DYNAMIC) != 0 |
3071 | && aout_backend_info (abfd)->add_dynamic_symbols != NULL) | |
3072 | { | |
3073 | if (! (*aout_backend_info (abfd)->add_dynamic_symbols) (abfd, info)) | |
3074 | return false; | |
3075 | } | |
3076 | ||
3077 | add_one_symbol = aout_backend_info (abfd)->add_one_symbol; | |
3078 | if (add_one_symbol == NULL) | |
3079 | add_one_symbol = _bfd_generic_link_add_one_symbol; | |
3080 | ||
4c3721d5 ILT |
3081 | p = obj_aout_external_syms (abfd); |
3082 | pend = p + sym_count; | |
3083 | for (; p < pend; p++, sym_hash++) | |
3084 | { | |
3085 | int type; | |
3086 | const char *name; | |
3087 | bfd_vma value; | |
3088 | asection *section; | |
3089 | flagword flags; | |
3090 | const char *string; | |
3091 | ||
3092 | *sym_hash = NULL; | |
3093 | ||
3094 | type = bfd_h_get_8 (abfd, p->e_type); | |
3095 | ||
3096 | /* Ignore debugging symbols. */ | |
3097 | if ((type & N_STAB) != 0) | |
3098 | continue; | |
3099 | ||
4c3721d5 ILT |
3100 | name = strings + GET_WORD (abfd, p->e_strx); |
3101 | value = GET_WORD (abfd, p->e_value); | |
3102 | flags = BSF_GLOBAL; | |
3103 | string = NULL; | |
3104 | switch (type) | |
3105 | { | |
3106 | default: | |
3107 | abort (); | |
4298e311 ILT |
3108 | |
3109 | case N_UNDF: | |
3110 | case N_ABS: | |
3111 | case N_TEXT: | |
3112 | case N_DATA: | |
3113 | case N_BSS: | |
3114 | case N_FN_SEQ: | |
3115 | case N_COMM: | |
3116 | case N_SETV: | |
3117 | case N_FN: | |
3118 | /* Ignore symbols that are not externally visible. */ | |
3119 | continue; | |
3120 | case N_INDR: | |
3121 | /* Ignore local indirect symbol. */ | |
3122 | ++p; | |
3123 | ++sym_hash; | |
3124 | continue; | |
3125 | ||
4c3721d5 | 3126 | case N_UNDF | N_EXT: |
4298e311 ILT |
3127 | if (value == 0) |
3128 | { | |
4587b578 | 3129 | section = bfd_und_section_ptr; |
4298e311 ILT |
3130 | flags = 0; |
3131 | } | |
4c3721d5 | 3132 | else |
4587b578 | 3133 | section = bfd_com_section_ptr; |
4c3721d5 ILT |
3134 | break; |
3135 | case N_ABS | N_EXT: | |
4587b578 | 3136 | section = bfd_abs_section_ptr; |
4c3721d5 ILT |
3137 | break; |
3138 | case N_TEXT | N_EXT: | |
3139 | section = obj_textsec (abfd); | |
3140 | value -= bfd_get_section_vma (abfd, section); | |
3141 | break; | |
3142 | case N_DATA | N_EXT: | |
2cd086e3 ILT |
3143 | case N_SETV | N_EXT: |
3144 | /* Treat N_SETV symbols as N_DATA symbol; see comment in | |
3145 | translate_from_native_sym_flags. */ | |
4c3721d5 ILT |
3146 | section = obj_datasec (abfd); |
3147 | value -= bfd_get_section_vma (abfd, section); | |
3148 | break; | |
3149 | case N_BSS | N_EXT: | |
3150 | section = obj_bsssec (abfd); | |
3151 | value -= bfd_get_section_vma (abfd, section); | |
3152 | break; | |
3153 | case N_INDR | N_EXT: | |
3154 | /* An indirect symbol. The next symbol is the symbol | |
3155 | which this one really is. */ | |
3156 | BFD_ASSERT (p + 1 < pend); | |
3157 | ++p; | |
3158 | string = strings + GET_WORD (abfd, p->e_strx); | |
4587b578 | 3159 | section = bfd_ind_section_ptr; |
4c3721d5 ILT |
3160 | flags |= BSF_INDIRECT; |
3161 | break; | |
3162 | case N_COMM | N_EXT: | |
4587b578 | 3163 | section = bfd_com_section_ptr; |
4c3721d5 | 3164 | break; |
964affdc | 3165 | case N_SETA: case N_SETA | N_EXT: |
4587b578 | 3166 | section = bfd_abs_section_ptr; |
4c3721d5 ILT |
3167 | flags |= BSF_CONSTRUCTOR; |
3168 | break; | |
964affdc | 3169 | case N_SETT: case N_SETT | N_EXT: |
4c3721d5 ILT |
3170 | section = obj_textsec (abfd); |
3171 | flags |= BSF_CONSTRUCTOR; | |
3172 | value -= bfd_get_section_vma (abfd, section); | |
3173 | break; | |
964affdc | 3174 | case N_SETD: case N_SETD | N_EXT: |
4c3721d5 ILT |
3175 | section = obj_datasec (abfd); |
3176 | flags |= BSF_CONSTRUCTOR; | |
3177 | value -= bfd_get_section_vma (abfd, section); | |
3178 | break; | |
964affdc | 3179 | case N_SETB: case N_SETB | N_EXT: |
4c3721d5 ILT |
3180 | section = obj_bsssec (abfd); |
3181 | flags |= BSF_CONSTRUCTOR; | |
3182 | value -= bfd_get_section_vma (abfd, section); | |
3183 | break; | |
3184 | case N_WARNING: | |
3185 | /* A warning symbol. The next symbol is the one to warn | |
3186 | about. */ | |
3187 | BFD_ASSERT (p + 1 < pend); | |
3188 | ++p; | |
3189 | string = name; | |
3190 | name = strings + GET_WORD (abfd, p->e_strx); | |
4587b578 | 3191 | section = bfd_und_section_ptr; |
4c3721d5 ILT |
3192 | flags |= BSF_WARNING; |
3193 | break; | |
4298e311 | 3194 | case N_WEAKU: |
4587b578 | 3195 | section = bfd_und_section_ptr; |
4298e311 ILT |
3196 | flags = BSF_WEAK; |
3197 | break; | |
3198 | case N_WEAKA: | |
4587b578 | 3199 | section = bfd_abs_section_ptr; |
4298e311 ILT |
3200 | flags = BSF_WEAK; |
3201 | break; | |
3202 | case N_WEAKT: | |
3203 | section = obj_textsec (abfd); | |
3204 | value -= bfd_get_section_vma (abfd, section); | |
3205 | flags = BSF_WEAK; | |
3206 | break; | |
3207 | case N_WEAKD: | |
3208 | section = obj_datasec (abfd); | |
3209 | value -= bfd_get_section_vma (abfd, section); | |
3210 | flags = BSF_WEAK; | |
3211 | break; | |
3212 | case N_WEAKB: | |
3213 | section = obj_bsssec (abfd); | |
3214 | value -= bfd_get_section_vma (abfd, section); | |
3215 | flags = BSF_WEAK; | |
3216 | break; | |
4c3721d5 ILT |
3217 | } |
3218 | ||
e85e8bfe | 3219 | if (! ((*add_one_symbol) |
e68de5d5 | 3220 | (info, abfd, name, flags, section, value, string, copy, false, |
ec099b4b | 3221 | (struct bfd_link_hash_entry **) sym_hash))) |
4c3721d5 | 3222 | return false; |
53155af1 ILT |
3223 | |
3224 | if (type == (N_INDR | N_EXT) || type == N_WARNING) | |
3225 | ++sym_hash; | |
4c3721d5 ILT |
3226 | } |
3227 | ||
3228 | return true; | |
3229 | } | |
3230 | ||
3231 | /* During the final link step we need to pass around a bunch of | |
3232 | information, so we do it in an instance of this structure. */ | |
3233 | ||
3234 | struct aout_final_link_info | |
3235 | { | |
3236 | /* General link information. */ | |
3237 | struct bfd_link_info *info; | |
3238 | /* Output bfd. */ | |
3239 | bfd *output_bfd; | |
3240 | /* Reloc file positions. */ | |
3241 | file_ptr treloff, dreloff; | |
3242 | /* File position of symbols. */ | |
3243 | file_ptr symoff; | |
3244 | /* String table. */ | |
d17fc4c9 | 3245 | struct strtab_hash strtab; |
4c3721d5 ILT |
3246 | }; |
3247 | ||
3248 | static boolean aout_link_input_bfd | |
3249 | PARAMS ((struct aout_final_link_info *, bfd *input_bfd)); | |
3250 | static boolean aout_link_write_symbols | |
3251 | PARAMS ((struct aout_final_link_info *, bfd *input_bfd, int *symbol_map)); | |
3252 | static boolean aout_link_write_other_symbol | |
3253 | PARAMS ((struct aout_link_hash_entry *, PTR)); | |
3254 | static boolean aout_link_input_section | |
3255 | PARAMS ((struct aout_final_link_info *, bfd *input_bfd, | |
3256 | asection *input_section, file_ptr *reloff_ptr, | |
3257 | bfd_size_type rel_size, int *symbol_map)); | |
3258 | static boolean aout_link_input_section_std | |
3259 | PARAMS ((struct aout_final_link_info *, bfd *input_bfd, | |
3260 | asection *input_section, struct reloc_std_external *, | |
3261 | bfd_size_type rel_size, bfd_byte *contents, int *symbol_map)); | |
3262 | static boolean aout_link_input_section_ext | |
3263 | PARAMS ((struct aout_final_link_info *, bfd *input_bfd, | |
3264 | asection *input_section, struct reloc_ext_external *, | |
3265 | bfd_size_type rel_size, bfd_byte *contents, int *symbol_map)); | |
3266 | static INLINE asection *aout_reloc_index_to_section | |
3267 | PARAMS ((bfd *, int)); | |
ec099b4b ILT |
3268 | static boolean aout_link_reloc_link_order |
3269 | PARAMS ((struct aout_final_link_info *, asection *, | |
3270 | struct bfd_link_order *)); | |
4c3721d5 ILT |
3271 | |
3272 | /* Do the final link step. This is called on the output BFD. The | |
3273 | INFO structure should point to a list of BFDs linked through the | |
3274 | link_next field which can be used to find each BFD which takes part | |
3275 | in the output. Also, each section in ABFD should point to a list | |
3276 | of bfd_link_order structures which list all the input sections for | |
3277 | the output section. */ | |
3278 | ||
3279 | boolean | |
3280 | NAME(aout,final_link) (abfd, info, callback) | |
3281 | bfd *abfd; | |
3282 | struct bfd_link_info *info; | |
3283 | void (*callback) PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *)); | |
3284 | { | |
3285 | struct aout_final_link_info aout_info; | |
3286 | register bfd *sub; | |
3287 | bfd_size_type text_size; | |
3288 | file_ptr text_end; | |
3289 | register struct bfd_link_order *p; | |
3290 | asection *o; | |
ec099b4b | 3291 | boolean have_link_order_relocs; |
4c3721d5 ILT |
3292 | |
3293 | aout_info.info = info; | |
3294 | aout_info.output_bfd = abfd; | |
3295 | ||
3296 | if (! info->relocateable) | |
3297 | { | |
3298 | exec_hdr (abfd)->a_trsize = 0; | |
3299 | exec_hdr (abfd)->a_drsize = 0; | |
3300 | } | |
3301 | else | |
3302 | { | |
3303 | bfd_size_type trsize, drsize; | |
3304 | ||
3305 | /* Count up the relocation sizes. */ | |
3306 | trsize = 0; | |
3307 | drsize = 0; | |
3308 | for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next) | |
3309 | { | |
6c8fa8e6 | 3310 | if (bfd_get_flavour (sub) == bfd_target_aout_flavour) |
4c3721d5 ILT |
3311 | { |
3312 | trsize += exec_hdr (sub)->a_trsize; | |
3313 | drsize += exec_hdr (sub)->a_drsize; | |
3314 | } | |
3315 | else | |
3316 | { | |
3317 | /* FIXME: We need to identify the .text and .data sections | |
3318 | and call get_reloc_upper_bound and canonicalize_reloc to | |
3319 | work out the number of relocs needed, and then multiply | |
3320 | by the reloc size. */ | |
3321 | abort (); | |
3322 | } | |
3323 | } | |
ec6b18c4 ILT |
3324 | if (obj_textsec (abfd) != (asection *) NULL) |
3325 | trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) | |
3326 | ->link_order_head) | |
3327 | * obj_reloc_entry_size (abfd)); | |
4c3721d5 | 3328 | exec_hdr (abfd)->a_trsize = trsize; |
ec6b18c4 ILT |
3329 | if (obj_datasec (abfd) != (asection *) NULL) |
3330 | drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) | |
3331 | ->link_order_head) | |
3332 | * obj_reloc_entry_size (abfd)); | |
4c3721d5 ILT |
3333 | exec_hdr (abfd)->a_drsize = drsize; |
3334 | } | |
3335 | ||
964affdc DM |
3336 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); |
3337 | ||
4c3721d5 ILT |
3338 | /* Adjust the section sizes and vmas according to the magic number. |
3339 | This sets a_text, a_data and a_bss in the exec_hdr and sets the | |
3340 | filepos for each section. */ | |
3341 | if (! NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end)) | |
3342 | return false; | |
3343 | ||
3344 | /* The relocation and symbol file positions differ among a.out | |
3345 | targets. We are passed a callback routine from the backend | |
3346 | specific code to handle this. | |
3347 | FIXME: At this point we do not know how much space the symbol | |
3348 | table will require. This will not work for any (nonstandard) | |
3349 | a.out target that needs to know the symbol table size before it | |
3350 | can compute the relocation file positions. This may or may not | |
3351 | be the case for the hp300hpux target, for example. */ | |
3352 | (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff, | |
3353 | &aout_info.symoff); | |
3354 | obj_textsec (abfd)->rel_filepos = aout_info.treloff; | |
3355 | obj_datasec (abfd)->rel_filepos = aout_info.dreloff; | |
3356 | obj_sym_filepos (abfd) = aout_info.symoff; | |
3357 | ||
3358 | /* We keep a count of the symbols as we output them. */ | |
3359 | obj_aout_external_sym_count (abfd) = 0; | |
3360 | ||
3361 | /* We accumulate the string table as we write out the symbols. */ | |
d17fc4c9 ILT |
3362 | if (! stringtab_init (&aout_info.strtab)) |
3363 | return false; | |
4c3721d5 ILT |
3364 | |
3365 | /* The most time efficient way to do the link would be to read all | |
3366 | the input object files into memory and then sort out the | |
3367 | information into the output file. Unfortunately, that will | |
3368 | probably use too much memory. Another method would be to step | |
3369 | through everything that composes the text section and write it | |
3370 | out, and then everything that composes the data section and write | |
3371 | it out, and then write out the relocs, and then write out the | |
3372 | symbols. Unfortunately, that requires reading stuff from each | |
3373 | input file several times, and we will not be able to keep all the | |
3374 | input files open simultaneously, and reopening them will be slow. | |
3375 | ||
3376 | What we do is basically process one input file at a time. We do | |
3377 | everything we need to do with an input file once--copy over the | |
3378 | section contents, handle the relocation information, and write | |
3379 | out the symbols--and then we throw away the information we read | |
3380 | from it. This approach requires a lot of lseeks of the output | |
3381 | file, which is unfortunate but still faster than reopening a lot | |
3382 | of files. | |
3383 | ||
3384 | We use the output_has_begun field of the input BFDs to see | |
3385 | whether we have already handled it. */ | |
3386 | for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next) | |
3387 | sub->output_has_begun = false; | |
3388 | ||
ec099b4b | 3389 | have_link_order_relocs = false; |
4c3721d5 ILT |
3390 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) |
3391 | { | |
4c3721d5 ILT |
3392 | for (p = o->link_order_head; |
3393 | p != (struct bfd_link_order *) NULL; | |
3394 | p = p->next) | |
3395 | { | |
e68de5d5 ILT |
3396 | if (p->type == bfd_indirect_link_order |
3397 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
3398 | == bfd_target_aout_flavour)) | |
4c3721d5 | 3399 | { |
e68de5d5 ILT |
3400 | bfd *input_bfd; |
3401 | ||
4c3721d5 | 3402 | input_bfd = p->u.indirect.section->owner; |
e68de5d5 | 3403 | if (! input_bfd->output_has_begun) |
4c3721d5 | 3404 | { |
e68de5d5 ILT |
3405 | if (! aout_link_input_bfd (&aout_info, input_bfd)) |
3406 | return false; | |
3407 | input_bfd->output_has_begun = true; | |
4c3721d5 | 3408 | } |
e68de5d5 | 3409 | } |
ec099b4b ILT |
3410 | else if (p->type == bfd_section_reloc_link_order |
3411 | || p->type == bfd_symbol_reloc_link_order) | |
3412 | { | |
3413 | /* These are handled below. */ | |
3414 | have_link_order_relocs = true; | |
3415 | } | |
e68de5d5 ILT |
3416 | else |
3417 | { | |
4c3721d5 ILT |
3418 | if (! _bfd_default_link_order (abfd, info, o, p)) |
3419 | return false; | |
3420 | } | |
3421 | } | |
3422 | } | |
3423 | ||
3424 | /* Write out any symbols that we have not already written out. */ | |
3425 | aout_link_hash_traverse (aout_hash_table (info), | |
3426 | aout_link_write_other_symbol, | |
3427 | (PTR) &aout_info); | |
3428 | ||
ec099b4b ILT |
3429 | /* Now handle any relocs we were asked to create by the linker. |
3430 | These did not come from any input file. We must do these after | |
3431 | we have written out all the symbols, so that we know the symbol | |
3432 | indices to use. */ | |
3433 | if (have_link_order_relocs) | |
3434 | { | |
3435 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
3436 | { | |
3437 | for (p = o->link_order_head; | |
3438 | p != (struct bfd_link_order *) NULL; | |
3439 | p = p->next) | |
3440 | { | |
3441 | if (p->type == bfd_section_reloc_link_order | |
3442 | || p->type == bfd_symbol_reloc_link_order) | |
3443 | { | |
3444 | if (! aout_link_reloc_link_order (&aout_info, o, p)) | |
3445 | return false; | |
3446 | } | |
3447 | } | |
3448 | } | |
3449 | } | |
3450 | ||
e85e8bfe ILT |
3451 | /* Finish up any dynamic linking we may be doing. */ |
3452 | if (aout_backend_info (abfd)->finish_dynamic_link != NULL) | |
3453 | { | |
3454 | if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info)) | |
3455 | return false; | |
3456 | } | |
3457 | ||
4c3721d5 ILT |
3458 | /* Update the header information. */ |
3459 | abfd->symcount = obj_aout_external_sym_count (abfd); | |
3460 | exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; | |
3461 | obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms; | |
3462 | obj_textsec (abfd)->reloc_count = | |
3463 | exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd); | |
3464 | obj_datasec (abfd)->reloc_count = | |
3465 | exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd); | |
3466 | ||
3467 | /* Write out the string table. */ | |
3468 | if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0) | |
3469 | return false; | |
d17fc4c9 | 3470 | return emit_stringtab (abfd, &aout_info.strtab); |
4c3721d5 ILT |
3471 | } |
3472 | ||
3473 | /* Link an a.out input BFD into the output file. */ | |
3474 | ||
3475 | static boolean | |
3476 | aout_link_input_bfd (finfo, input_bfd) | |
3477 | struct aout_final_link_info *finfo; | |
3478 | bfd *input_bfd; | |
3479 | { | |
3480 | bfd_size_type sym_count; | |
80425e6c | 3481 | int *symbol_map = NULL; |
4c3721d5 ILT |
3482 | |
3483 | BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object); | |
3484 | ||
e85e8bfe ILT |
3485 | /* If this is a dynamic object, it may need special handling. */ |
3486 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3487 | && aout_backend_info (input_bfd)->link_dynamic_object != NULL) | |
3488 | { | |
3489 | return ((*aout_backend_info (input_bfd)->link_dynamic_object) | |
3490 | (finfo->info, input_bfd)); | |
3491 | } | |
3492 | ||
4c3721d5 ILT |
3493 | /* Get the symbols. We probably have them already, unless |
3494 | finfo->info->keep_memory is false. */ | |
5c8444f8 | 3495 | if (! aout_get_external_symbols (input_bfd)) |
4c3721d5 ILT |
3496 | return false; |
3497 | ||
3498 | sym_count = obj_aout_external_sym_count (input_bfd); | |
80425e6c | 3499 | symbol_map = (int *) malloc ((size_t) sym_count * sizeof (int)); |
8eb5d4be | 3500 | if (symbol_map == NULL && sym_count != 0) |
80425e6c JK |
3501 | { |
3502 | bfd_set_error (bfd_error_no_memory); | |
3503 | return false; | |
3504 | } | |
4c3721d5 ILT |
3505 | |
3506 | /* Write out the symbols and get a map of the new indices. */ | |
3507 | if (! aout_link_write_symbols (finfo, input_bfd, symbol_map)) | |
80425e6c | 3508 | goto error_return; |
4c3721d5 ILT |
3509 | |
3510 | /* Relocate and write out the sections. */ | |
3511 | if (! aout_link_input_section (finfo, input_bfd, | |
3512 | obj_textsec (input_bfd), | |
3513 | &finfo->treloff, | |
3514 | exec_hdr (input_bfd)->a_trsize, | |
3515 | symbol_map) | |
3516 | || ! aout_link_input_section (finfo, input_bfd, | |
3517 | obj_datasec (input_bfd), | |
3518 | &finfo->dreloff, | |
3519 | exec_hdr (input_bfd)->a_drsize, | |
3520 | symbol_map)) | |
80425e6c | 3521 | goto error_return; |
4c3721d5 ILT |
3522 | |
3523 | /* If we are not keeping memory, we don't need the symbols any | |
3524 | longer. We still need them if we are keeping memory, because the | |
3525 | strings in the hash table point into them. */ | |
3526 | if (! finfo->info->keep_memory) | |
3527 | { | |
3528 | if (! aout_link_free_symbols (input_bfd)) | |
80425e6c | 3529 | goto error_return; |
4c3721d5 ILT |
3530 | } |
3531 | ||
80425e6c JK |
3532 | if (symbol_map != NULL) |
3533 | free (symbol_map); | |
4c3721d5 | 3534 | return true; |
80425e6c JK |
3535 | error_return: |
3536 | if (symbol_map != NULL) | |
3537 | free (symbol_map); | |
3538 | return false; | |
4c3721d5 ILT |
3539 | } |
3540 | ||
3541 | /* Adjust and write out the symbols for an a.out file. Set the new | |
3542 | symbol indices into a symbol_map. */ | |
3543 | ||
3544 | static boolean | |
3545 | aout_link_write_symbols (finfo, input_bfd, symbol_map) | |
3546 | struct aout_final_link_info *finfo; | |
3547 | bfd *input_bfd; | |
3548 | int *symbol_map; | |
3549 | { | |
3550 | bfd *output_bfd; | |
3551 | bfd_size_type sym_count; | |
3552 | char *strings; | |
3553 | enum bfd_link_strip strip; | |
3554 | enum bfd_link_discard discard; | |
80425e6c | 3555 | struct external_nlist *output_syms = NULL; |
4c3721d5 | 3556 | struct external_nlist *outsym; |
d17fc4c9 | 3557 | bfd_size_type strtab_index; |
4c3721d5 ILT |
3558 | register struct external_nlist *sym; |
3559 | struct external_nlist *sym_end; | |
3560 | struct aout_link_hash_entry **sym_hash; | |
3561 | boolean pass; | |
53155af1 | 3562 | boolean skip_indirect; |
4c3721d5 ILT |
3563 | |
3564 | output_bfd = finfo->output_bfd; | |
3565 | sym_count = obj_aout_external_sym_count (input_bfd); | |
3566 | strings = obj_aout_external_strings (input_bfd); | |
3567 | strip = finfo->info->strip; | |
3568 | discard = finfo->info->discard; | |
3569 | output_syms = ((struct external_nlist *) | |
80425e6c JK |
3570 | malloc ((size_t) (sym_count + 1) * EXTERNAL_NLIST_SIZE)); |
3571 | if (output_syms == NULL) | |
3572 | { | |
3573 | bfd_set_error (bfd_error_no_memory); | |
3574 | goto error_return; | |
3575 | } | |
4c3721d5 ILT |
3576 | outsym = output_syms; |
3577 | ||
3578 | /* First write out a symbol for this object file, unless we are | |
3579 | discarding such symbols. */ | |
3580 | if (strip != strip_all | |
3581 | && (strip != strip_some | |
3582 | || bfd_hash_lookup (finfo->info->keep_hash, input_bfd->filename, | |
3583 | false, false) != NULL) | |
3584 | && discard != discard_all) | |
3585 | { | |
3586 | bfd_h_put_8 (output_bfd, N_TEXT, outsym->e_type); | |
3587 | bfd_h_put_8 (output_bfd, 0, outsym->e_other); | |
3588 | bfd_h_put_16 (output_bfd, (bfd_vma) 0, outsym->e_desc); | |
d17fc4c9 ILT |
3589 | strtab_index = add_to_stringtab (output_bfd, &finfo->strtab, |
3590 | input_bfd->filename, false); | |
3591 | if (strtab_index == (bfd_size_type) -1) | |
3592 | goto error_return; | |
3593 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4c3721d5 | 3594 | PUT_WORD (output_bfd, |
2edc8357 ILT |
3595 | (bfd_get_section_vma (output_bfd, |
3596 | obj_textsec (input_bfd)->output_section) | |
3597 | + obj_textsec (input_bfd)->output_offset), | |
4c3721d5 ILT |
3598 | outsym->e_value); |
3599 | ++obj_aout_external_sym_count (output_bfd); | |
3600 | ++outsym; | |
3601 | } | |
3602 | ||
3603 | pass = false; | |
53155af1 | 3604 | skip_indirect = false; |
4c3721d5 ILT |
3605 | sym = obj_aout_external_syms (input_bfd); |
3606 | sym_end = sym + sym_count; | |
3607 | sym_hash = obj_aout_sym_hashes (input_bfd); | |
3608 | for (; sym < sym_end; sym++, sym_hash++, symbol_map++) | |
3609 | { | |
3610 | const char *name; | |
3611 | int type; | |
d6d6b18a | 3612 | struct aout_link_hash_entry *h; |
4c3721d5 ILT |
3613 | boolean skip; |
3614 | asection *symsec; | |
3615 | bfd_vma val = 0; | |
d17fc4c9 | 3616 | boolean copy; |
4c3721d5 ILT |
3617 | |
3618 | *symbol_map = -1; | |
3619 | ||
3620 | type = bfd_h_get_8 (input_bfd, sym->e_type); | |
3621 | name = strings + GET_WORD (input_bfd, sym->e_strx); | |
3622 | ||
d6d6b18a ILT |
3623 | h = NULL; |
3624 | ||
4c3721d5 ILT |
3625 | if (pass) |
3626 | { | |
53155af1 ILT |
3627 | /* Pass this symbol through. It is the target of an |
3628 | indirect or warning symbol. */ | |
4c3721d5 ILT |
3629 | val = GET_WORD (input_bfd, sym->e_value); |
3630 | pass = false; | |
3631 | } | |
53155af1 ILT |
3632 | else if (skip_indirect) |
3633 | { | |
3634 | /* Skip this symbol, which is the target of an indirect | |
3635 | symbol that we have changed to no longer be an indirect | |
3636 | symbol. */ | |
3637 | skip_indirect = false; | |
3638 | continue; | |
3639 | } | |
4c3721d5 ILT |
3640 | else |
3641 | { | |
53155af1 | 3642 | struct aout_link_hash_entry *hresolve; |
4c3721d5 ILT |
3643 | |
3644 | /* We have saved the hash table entry for this symbol, if | |
3645 | there is one. Note that we could just look it up again | |
3646 | in the hash table, provided we first check that it is an | |
3647 | external symbol. */ | |
3648 | h = *sym_hash; | |
3649 | ||
3a5b50f4 ILT |
3650 | /* If this is an indirect or warning symbol, then change |
3651 | hresolve to the base symbol. We also change *sym_hash so | |
3652 | that the relocation routines relocate against the real | |
3653 | symbol. */ | |
53155af1 ILT |
3654 | hresolve = h; |
3655 | if (h != (struct aout_link_hash_entry *) NULL | |
3a5b50f4 ILT |
3656 | && (h->root.type == bfd_link_hash_indirect |
3657 | || h->root.type == bfd_link_hash_warning)) | |
53155af1 ILT |
3658 | { |
3659 | hresolve = (struct aout_link_hash_entry *) h->root.u.i.link; | |
118e8d1c ILT |
3660 | while (hresolve->root.type == bfd_link_hash_indirect |
3661 | || hresolve->root.type == bfd_link_hash_warning) | |
53155af1 ILT |
3662 | hresolve = ((struct aout_link_hash_entry *) |
3663 | hresolve->root.u.i.link); | |
3664 | *sym_hash = hresolve; | |
3665 | } | |
3666 | ||
4c3721d5 ILT |
3667 | /* If the symbol has already been written out, skip it. */ |
3668 | if (h != (struct aout_link_hash_entry *) NULL | |
e85e8bfe | 3669 | && h->root.type != bfd_link_hash_warning |
35fee729 | 3670 | && h->written) |
4c3721d5 | 3671 | { |
e85e8bfe ILT |
3672 | if ((type & N_TYPE) == N_INDR) |
3673 | skip_indirect = true; | |
4c3721d5 ILT |
3674 | *symbol_map = h->indx; |
3675 | continue; | |
3676 | } | |
3677 | ||
3678 | /* See if we are stripping this symbol. */ | |
3679 | skip = false; | |
3680 | switch (strip) | |
3681 | { | |
3682 | case strip_none: | |
3683 | break; | |
3684 | case strip_debugger: | |
3685 | if ((type & N_STAB) != 0) | |
3686 | skip = true; | |
3687 | break; | |
3688 | case strip_some: | |
3689 | if (bfd_hash_lookup (finfo->info->keep_hash, name, false, false) | |
3690 | == NULL) | |
3691 | skip = true; | |
3692 | break; | |
3693 | case strip_all: | |
3694 | skip = true; | |
3695 | break; | |
3696 | } | |
3697 | if (skip) | |
3698 | { | |
3699 | if (h != (struct aout_link_hash_entry *) NULL) | |
35fee729 | 3700 | h->written = true; |
4c3721d5 ILT |
3701 | continue; |
3702 | } | |
3703 | ||
3704 | /* Get the value of the symbol. */ | |
4298e311 ILT |
3705 | if ((type & N_TYPE) == N_TEXT |
3706 | || type == N_WEAKT) | |
4c3721d5 | 3707 | symsec = obj_textsec (input_bfd); |
4298e311 ILT |
3708 | else if ((type & N_TYPE) == N_DATA |
3709 | || type == N_WEAKD) | |
4c3721d5 | 3710 | symsec = obj_datasec (input_bfd); |
4298e311 ILT |
3711 | else if ((type & N_TYPE) == N_BSS |
3712 | || type == N_WEAKB) | |
4c3721d5 | 3713 | symsec = obj_bsssec (input_bfd); |
4298e311 ILT |
3714 | else if ((type & N_TYPE) == N_ABS |
3715 | || type == N_WEAKA) | |
4587b578 | 3716 | symsec = bfd_abs_section_ptr; |
53155af1 ILT |
3717 | else if (((type & N_TYPE) == N_INDR |
3718 | && (hresolve == (struct aout_link_hash_entry *) NULL | |
3719 | || (hresolve->root.type != bfd_link_hash_defined | |
3720 | && hresolve->root.type != bfd_link_hash_common))) | |
4c3721d5 ILT |
3721 | || type == N_WARNING) |
3722 | { | |
53155af1 ILT |
3723 | /* Pass the next symbol through unchanged. The |
3724 | condition above for indirect symbols is so that if | |
3725 | the indirect symbol was defined, we output it with | |
3726 | the correct definition so the debugger will | |
3727 | understand it. */ | |
4c3721d5 ILT |
3728 | pass = true; |
3729 | val = GET_WORD (input_bfd, sym->e_value); | |
3730 | symsec = NULL; | |
3731 | } | |
3732 | else if ((type & N_STAB) != 0) | |
3733 | { | |
3734 | val = GET_WORD (input_bfd, sym->e_value); | |
3735 | symsec = NULL; | |
3736 | } | |
3737 | else | |
3738 | { | |
53155af1 ILT |
3739 | /* If we get here with an indirect symbol, it means that |
3740 | we are outputting it with a real definition. In such | |
3741 | a case we do not want to output the next symbol, | |
3742 | which is the target of the indirection. */ | |
3743 | if ((type & N_TYPE) == N_INDR) | |
3744 | skip_indirect = true; | |
3745 | ||
3746 | /* We need to get the value from the hash table. We use | |
3747 | hresolve so that if we have defined an indirect | |
3748 | symbol we output the final definition. */ | |
4c3721d5 ILT |
3749 | if (h == (struct aout_link_hash_entry *) NULL) |
3750 | val = 0; | |
53155af1 | 3751 | else if (hresolve->root.type == bfd_link_hash_defined) |
4c3721d5 | 3752 | { |
53155af1 | 3753 | asection *input_section; |
4c3721d5 ILT |
3754 | asection *output_section; |
3755 | ||
3756 | /* This case means a common symbol which was turned | |
3757 | into a defined symbol. */ | |
53155af1 ILT |
3758 | input_section = hresolve->root.u.def.section; |
3759 | output_section = input_section->output_section; | |
4587b578 | 3760 | BFD_ASSERT (bfd_is_abs_section (output_section) |
4c3721d5 | 3761 | || output_section->owner == output_bfd); |
53155af1 | 3762 | val = (hresolve->root.u.def.value |
4c3721d5 | 3763 | + bfd_get_section_vma (output_bfd, output_section) |
53155af1 | 3764 | + input_section->output_offset); |
4c3721d5 ILT |
3765 | |
3766 | /* Get the correct type based on the section. If | |
3767 | this is a constructed set, force it to be | |
3768 | globally visible. */ | |
3769 | if (type == N_SETT | |
3770 | || type == N_SETD | |
3771 | || type == N_SETB | |
3772 | || type == N_SETA) | |
3773 | type |= N_EXT; | |
3774 | ||
3775 | type &=~ N_TYPE; | |
3776 | ||
3777 | if (output_section == obj_textsec (output_bfd)) | |
3778 | type |= N_TEXT; | |
3779 | else if (output_section == obj_datasec (output_bfd)) | |
3780 | type |= N_DATA; | |
3781 | else if (output_section == obj_bsssec (output_bfd)) | |
3782 | type |= N_BSS; | |
3783 | else | |
3784 | type |= N_ABS; | |
3785 | } | |
53155af1 ILT |
3786 | else if (hresolve->root.type == bfd_link_hash_common) |
3787 | val = hresolve->root.u.c.size; | |
4298e311 ILT |
3788 | else if (hresolve->root.type == bfd_link_hash_weak) |
3789 | { | |
3790 | val = 0; | |
3791 | type = N_WEAKU; | |
3792 | } | |
4c3721d5 ILT |
3793 | else |
3794 | val = 0; | |
3795 | ||
3796 | symsec = NULL; | |
3797 | } | |
3798 | if (symsec != (asection *) NULL) | |
3799 | val = (symsec->output_section->vma | |
3800 | + symsec->output_offset | |
3801 | + (GET_WORD (input_bfd, sym->e_value) | |
3802 | - symsec->vma)); | |
3803 | ||
3804 | /* If this is a global symbol set the written flag, and if | |
3805 | it is a local symbol see if we should discard it. */ | |
3806 | if (h != (struct aout_link_hash_entry *) NULL) | |
3807 | { | |
35fee729 | 3808 | h->written = true; |
4c3721d5 ILT |
3809 | h->indx = obj_aout_external_sym_count (output_bfd); |
3810 | } | |
3811 | else | |
3812 | { | |
3813 | switch (discard) | |
3814 | { | |
3815 | case discard_none: | |
3816 | break; | |
3817 | case discard_l: | |
3818 | if (*name == *finfo->info->lprefix | |
3819 | && (finfo->info->lprefix_len == 1 | |
3820 | || strncmp (name, finfo->info->lprefix, | |
3821 | finfo->info->lprefix_len) == 0)) | |
3822 | skip = true; | |
3823 | break; | |
3824 | case discard_all: | |
3825 | skip = true; | |
3826 | break; | |
3827 | } | |
3828 | if (skip) | |
3829 | { | |
3830 | pass = false; | |
3831 | continue; | |
3832 | } | |
3833 | } | |
3834 | } | |
3835 | ||
3836 | /* Copy this symbol into the list of symbols we are going to | |
3837 | write out. */ | |
3838 | bfd_h_put_8 (output_bfd, type, outsym->e_type); | |
3839 | bfd_h_put_8 (output_bfd, bfd_h_get_8 (input_bfd, sym->e_other), | |
3840 | outsym->e_other); | |
3841 | bfd_h_put_16 (output_bfd, bfd_h_get_16 (input_bfd, sym->e_desc), | |
3842 | outsym->e_desc); | |
d17fc4c9 | 3843 | copy = false; |
d6d6b18a ILT |
3844 | if (! finfo->info->keep_memory) |
3845 | { | |
3846 | /* name points into a string table which we are going to | |
3847 | free. If there is a hash table entry, use that string. | |
3848 | Otherwise, copy name into memory. */ | |
3849 | if (h != (struct aout_link_hash_entry *) NULL) | |
3850 | name = (*sym_hash)->root.root.string; | |
3851 | else | |
d17fc4c9 | 3852 | copy = true; |
d6d6b18a | 3853 | } |
d17fc4c9 ILT |
3854 | strtab_index = add_to_stringtab (output_bfd, &finfo->strtab, |
3855 | name, copy); | |
3856 | if (strtab_index == (bfd_size_type) -1) | |
3857 | goto error_return; | |
3858 | PUT_WORD (output_bfd, strtab_index, outsym->e_strx); | |
4c3721d5 ILT |
3859 | PUT_WORD (output_bfd, val, outsym->e_value); |
3860 | *symbol_map = obj_aout_external_sym_count (output_bfd); | |
3861 | ++obj_aout_external_sym_count (output_bfd); | |
3862 | ++outsym; | |
3863 | } | |
3864 | ||
3865 | /* Write out the output symbols we have just constructed. */ | |
3866 | if (outsym > output_syms) | |
3867 | { | |
3868 | bfd_size_type outsym_count; | |
3869 | ||
3870 | if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0) | |
80425e6c | 3871 | goto error_return; |
4c3721d5 ILT |
3872 | outsym_count = outsym - output_syms; |
3873 | if (bfd_write ((PTR) output_syms, (bfd_size_type) EXTERNAL_NLIST_SIZE, | |
3874 | (bfd_size_type) outsym_count, output_bfd) | |
3875 | != outsym_count * EXTERNAL_NLIST_SIZE) | |
80425e6c | 3876 | goto error_return; |
4c3721d5 ILT |
3877 | finfo->symoff += outsym_count * EXTERNAL_NLIST_SIZE; |
3878 | } | |
3879 | ||
80425e6c JK |
3880 | if (output_syms != NULL) |
3881 | free (output_syms); | |
4c3721d5 | 3882 | return true; |
80425e6c JK |
3883 | error_return: |
3884 | if (output_syms != NULL) | |
3885 | free (output_syms); | |
3886 | return false; | |
4c3721d5 ILT |
3887 | } |
3888 | ||
3889 | /* Write out a symbol that was not associated with an a.out input | |
3890 | object. */ | |
3891 | ||
3892 | static boolean | |
3893 | aout_link_write_other_symbol (h, data) | |
3894 | struct aout_link_hash_entry *h; | |
3895 | PTR data; | |
3896 | { | |
3897 | struct aout_final_link_info *finfo = (struct aout_final_link_info *) data; | |
3898 | bfd *output_bfd; | |
3899 | int type; | |
3900 | bfd_vma val; | |
3901 | struct external_nlist outsym; | |
d17fc4c9 | 3902 | bfd_size_type indx; |
4c3721d5 | 3903 | |
e85e8bfe ILT |
3904 | output_bfd = finfo->output_bfd; |
3905 | ||
3906 | if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL) | |
3907 | { | |
3908 | if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol) | |
3909 | (output_bfd, finfo->info, h))) | |
3910 | { | |
3911 | /* FIXME: No way to handle errors. */ | |
3912 | abort (); | |
3913 | } | |
3914 | } | |
3915 | ||
35fee729 | 3916 | if (h->written) |
4c3721d5 ILT |
3917 | return true; |
3918 | ||
35fee729 | 3919 | h->written = true; |
9783e04a DM |
3920 | |
3921 | if (finfo->info->strip == strip_all | |
3922 | || (finfo->info->strip == strip_some | |
3923 | && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string, | |
3924 | false, false) == NULL)) | |
3925 | return true; | |
3926 | ||
4c3721d5 ILT |
3927 | switch (h->root.type) |
3928 | { | |
3929 | default: | |
3930 | case bfd_link_hash_new: | |
3931 | abort (); | |
3932 | /* Avoid variable not initialized warnings. */ | |
3933 | return true; | |
3934 | case bfd_link_hash_undefined: | |
3935 | type = N_UNDF | N_EXT; | |
3936 | val = 0; | |
3937 | break; | |
3938 | case bfd_link_hash_defined: | |
3939 | { | |
3940 | asection *sec; | |
3941 | ||
4f019d04 | 3942 | sec = h->root.u.def.section->output_section; |
4587b578 | 3943 | BFD_ASSERT (bfd_is_abs_section (sec) |
4c3721d5 ILT |
3944 | || sec->owner == output_bfd); |
3945 | if (sec == obj_textsec (output_bfd)) | |
3946 | type = N_TEXT | N_EXT; | |
3947 | else if (sec == obj_datasec (output_bfd)) | |
3948 | type = N_DATA | N_EXT; | |
3949 | else if (sec == obj_bsssec (output_bfd)) | |
3950 | type = N_BSS | N_EXT; | |
3951 | else | |
3952 | type = N_ABS | N_EXT; | |
3953 | val = (h->root.u.def.value | |
4f019d04 ILT |
3954 | + sec->vma |
3955 | + h->root.u.def.section->output_offset); | |
4c3721d5 ILT |
3956 | } |
3957 | break; | |
3958 | case bfd_link_hash_common: | |
3959 | type = N_UNDF | N_EXT; | |
3960 | val = h->root.u.c.size; | |
3961 | break; | |
4298e311 ILT |
3962 | case bfd_link_hash_weak: |
3963 | type = N_WEAKU; | |
3964 | val = 0; | |
4c3721d5 ILT |
3965 | case bfd_link_hash_indirect: |
3966 | case bfd_link_hash_warning: | |
3967 | /* FIXME: Ignore these for now. The circumstances under which | |
3968 | they should be written out are not clear to me. */ | |
3969 | return true; | |
3970 | } | |
3971 | ||
3972 | bfd_h_put_8 (output_bfd, type, outsym.e_type); | |
3973 | bfd_h_put_8 (output_bfd, 0, outsym.e_other); | |
3974 | bfd_h_put_16 (output_bfd, 0, outsym.e_desc); | |
d17fc4c9 ILT |
3975 | indx = add_to_stringtab (output_bfd, &finfo->strtab, h->root.root.string, |
3976 | false); | |
3977 | if (indx == (bfd_size_type) -1) | |
3978 | { | |
3979 | /* FIXME: No way to handle errors. */ | |
3980 | abort (); | |
3981 | } | |
3982 | PUT_WORD (output_bfd, indx, outsym.e_strx); | |
4c3721d5 ILT |
3983 | PUT_WORD (output_bfd, val, outsym.e_value); |
3984 | ||
3985 | if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0 | |
3986 | || bfd_write ((PTR) &outsym, (bfd_size_type) EXTERNAL_NLIST_SIZE, | |
3987 | (bfd_size_type) 1, output_bfd) != EXTERNAL_NLIST_SIZE) | |
3988 | { | |
3989 | /* FIXME: No way to handle errors. */ | |
3990 | abort (); | |
3991 | } | |
3992 | ||
3993 | finfo->symoff += EXTERNAL_NLIST_SIZE; | |
3994 | h->indx = obj_aout_external_sym_count (output_bfd); | |
3995 | ++obj_aout_external_sym_count (output_bfd); | |
3996 | ||
3997 | return true; | |
3998 | } | |
3999 | ||
4000 | /* Link an a.out section into the output file. */ | |
4001 | ||
4002 | static boolean | |
4003 | aout_link_input_section (finfo, input_bfd, input_section, reloff_ptr, | |
4004 | rel_size, symbol_map) | |
4005 | struct aout_final_link_info *finfo; | |
4006 | bfd *input_bfd; | |
4007 | asection *input_section; | |
4008 | file_ptr *reloff_ptr; | |
4009 | bfd_size_type rel_size; | |
4010 | int *symbol_map; | |
4011 | { | |
4012 | bfd_size_type input_size; | |
80425e6c | 4013 | bfd_byte *contents = NULL; |
e85e8bfe ILT |
4014 | PTR relocs; |
4015 | PTR free_relocs = NULL; | |
4c3721d5 ILT |
4016 | |
4017 | /* Get the section contents. */ | |
4018 | input_size = bfd_section_size (input_bfd, input_section); | |
80425e6c | 4019 | contents = (bfd_byte *) malloc (input_size); |
8eb5d4be | 4020 | if (contents == NULL && input_size != 0) |
80425e6c JK |
4021 | { |
4022 | bfd_set_error (bfd_error_no_memory); | |
4023 | goto error_return; | |
4024 | } | |
728472f1 | 4025 | if (! bfd_get_section_contents (input_bfd, input_section, (PTR) contents, |
4c3721d5 | 4026 | (file_ptr) 0, input_size)) |
80425e6c | 4027 | goto error_return; |
4c3721d5 | 4028 | |
e85e8bfe ILT |
4029 | /* Read in the relocs if we haven't already done it. */ |
4030 | if (aout_section_data (input_section) != NULL | |
4031 | && aout_section_data (input_section)->relocs != NULL) | |
4032 | relocs = aout_section_data (input_section)->relocs; | |
4033 | else | |
80425e6c | 4034 | { |
e85e8bfe ILT |
4035 | relocs = free_relocs = (PTR) malloc (rel_size); |
4036 | if (relocs == NULL && rel_size != 0) | |
4037 | { | |
4038 | bfd_set_error (bfd_error_no_memory); | |
4039 | goto error_return; | |
4040 | } | |
4041 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
4042 | || bfd_read (relocs, 1, rel_size, input_bfd) != rel_size) | |
4043 | goto error_return; | |
80425e6c | 4044 | } |
4c3721d5 ILT |
4045 | |
4046 | /* Relocate the section contents. */ | |
4047 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
4048 | { | |
4049 | if (! aout_link_input_section_std (finfo, input_bfd, input_section, | |
4050 | (struct reloc_std_external *) relocs, | |
4051 | rel_size, contents, symbol_map)) | |
80425e6c | 4052 | goto error_return; |
4c3721d5 ILT |
4053 | } |
4054 | else | |
4055 | { | |
4056 | if (! aout_link_input_section_ext (finfo, input_bfd, input_section, | |
4057 | (struct reloc_ext_external *) relocs, | |
4058 | rel_size, contents, symbol_map)) | |
5c8444f8 | 4059 | goto error_return; |
4c3721d5 ILT |
4060 | } |
4061 | ||
4062 | /* Write out the section contents. */ | |
4063 | if (! bfd_set_section_contents (finfo->output_bfd, | |
4064 | input_section->output_section, | |
728472f1 ILT |
4065 | (PTR) contents, |
4066 | input_section->output_offset, | |
4c3721d5 | 4067 | input_size)) |
80425e6c | 4068 | goto error_return; |
4c3721d5 ILT |
4069 | |
4070 | /* If we are producing relocateable output, the relocs were | |
4071 | modified, and we now write them out. */ | |
4072 | if (finfo->info->relocateable) | |
4073 | { | |
4074 | if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0) | |
80425e6c | 4075 | goto error_return; |
4c3721d5 ILT |
4076 | if (bfd_write (relocs, (bfd_size_type) 1, rel_size, finfo->output_bfd) |
4077 | != rel_size) | |
80425e6c | 4078 | goto error_return; |
4c3721d5 ILT |
4079 | *reloff_ptr += rel_size; |
4080 | ||
4081 | /* Assert that the relocs have not run into the symbols, and | |
4082 | that if these are the text relocs they have not run into the | |
4083 | data relocs. */ | |
4084 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd) | |
4085 | && (reloff_ptr != &finfo->treloff | |
4086 | || (*reloff_ptr | |
4087 | <= obj_datasec (finfo->output_bfd)->rel_filepos))); | |
4088 | } | |
4089 | ||
e85e8bfe ILT |
4090 | if (free_relocs != NULL) |
4091 | free (free_relocs); | |
80425e6c JK |
4092 | if (contents != NULL) |
4093 | free (contents); | |
4c3721d5 | 4094 | return true; |
80425e6c | 4095 | error_return: |
e85e8bfe ILT |
4096 | if (free_relocs != NULL) |
4097 | free (free_relocs); | |
80425e6c JK |
4098 | if (contents != NULL) |
4099 | free (contents); | |
4100 | return false; | |
4c3721d5 ILT |
4101 | } |
4102 | ||
4103 | /* Get the section corresponding to a reloc index. */ | |
4104 | ||
4105 | static INLINE asection * | |
4106 | aout_reloc_index_to_section (abfd, indx) | |
4107 | bfd *abfd; | |
4108 | int indx; | |
4109 | { | |
4110 | switch (indx & N_TYPE) | |
4111 | { | |
4112 | case N_TEXT: | |
4113 | return obj_textsec (abfd); | |
4114 | case N_DATA: | |
4115 | return obj_datasec (abfd); | |
4116 | case N_BSS: | |
4117 | return obj_bsssec (abfd); | |
4118 | case N_ABS: | |
fa2302b8 | 4119 | case N_UNDF: |
4587b578 | 4120 | return bfd_abs_section_ptr; |
4c3721d5 ILT |
4121 | default: |
4122 | abort (); | |
4123 | } | |
4124 | } | |
4125 | ||
4126 | /* Relocate an a.out section using standard a.out relocs. */ | |
4127 | ||
4128 | static boolean | |
4129 | aout_link_input_section_std (finfo, input_bfd, input_section, relocs, | |
4130 | rel_size, contents, symbol_map) | |
4131 | struct aout_final_link_info *finfo; | |
4132 | bfd *input_bfd; | |
4133 | asection *input_section; | |
4134 | struct reloc_std_external *relocs; | |
4135 | bfd_size_type rel_size; | |
4136 | bfd_byte *contents; | |
4137 | int *symbol_map; | |
4138 | { | |
e85e8bfe ILT |
4139 | boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *, |
4140 | bfd *, asection *, | |
4141 | struct aout_link_hash_entry *, | |
4142 | PTR, boolean *)); | |
4c3721d5 ILT |
4143 | bfd *output_bfd; |
4144 | boolean relocateable; | |
4145 | struct external_nlist *syms; | |
4146 | char *strings; | |
4147 | struct aout_link_hash_entry **sym_hashes; | |
4148 | bfd_size_type reloc_count; | |
4149 | register struct reloc_std_external *rel; | |
4150 | struct reloc_std_external *rel_end; | |
4151 | ||
4152 | output_bfd = finfo->output_bfd; | |
e85e8bfe | 4153 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
4c3721d5 ILT |
4154 | |
4155 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE); | |
4156 | BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p | |
4157 | == output_bfd->xvec->header_byteorder_big_p); | |
4158 | ||
4159 | relocateable = finfo->info->relocateable; | |
4160 | syms = obj_aout_external_syms (input_bfd); | |
4161 | strings = obj_aout_external_strings (input_bfd); | |
4162 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
4163 | ||
4164 | reloc_count = rel_size / RELOC_STD_SIZE; | |
4165 | rel = relocs; | |
4166 | rel_end = rel + reloc_count; | |
4167 | for (; rel < rel_end; rel++) | |
4168 | { | |
4169 | bfd_vma r_addr; | |
4170 | int r_index; | |
4171 | int r_extern; | |
4172 | int r_pcrel; | |
4173 | int r_baserel; | |
4174 | int r_jmptable; | |
4175 | int r_relative; | |
4176 | int r_length; | |
4177 | int howto_idx; | |
4178 | bfd_vma relocation; | |
4179 | bfd_reloc_status_type r; | |
4180 | ||
4181 | r_addr = GET_SWORD (input_bfd, rel->r_address); | |
4182 | ||
4183 | if (input_bfd->xvec->header_byteorder_big_p) | |
4184 | { | |
4185 | r_index = ((rel->r_index[0] << 16) | |
4186 | | (rel->r_index[1] << 8) | |
4187 | | rel->r_index[2]); | |
4188 | r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG)); | |
4189 | r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
4190 | r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
4191 | r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
4192 | r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG)); | |
4193 | r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) | |
4194 | >> RELOC_STD_BITS_LENGTH_SH_BIG); | |
4195 | } | |
4196 | else | |
4197 | { | |
4198 | r_index = ((rel->r_index[2] << 16) | |
4199 | | (rel->r_index[1] << 8) | |
4200 | | rel->r_index[0]); | |
4201 | r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE)); | |
4202 | r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
4203 | r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
4204 | r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
4205 | r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE)); | |
4206 | r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) | |
4207 | >> RELOC_STD_BITS_LENGTH_SH_LITTLE); | |
4208 | } | |
4209 | ||
cb9461ff JK |
4210 | howto_idx = r_length + 4 * r_pcrel + 8 * r_baserel |
4211 | + 16 * r_jmptable + 32 * r_relative; | |
4c3721d5 | 4212 | BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std)); |
4c3721d5 ILT |
4213 | |
4214 | if (relocateable) | |
4215 | { | |
4216 | /* We are generating a relocateable output file, and must | |
4217 | modify the reloc accordingly. */ | |
4218 | if (r_extern) | |
4219 | { | |
4220 | struct aout_link_hash_entry *h; | |
4221 | ||
4222 | /* If we know the symbol this relocation is against, | |
4223 | convert it into a relocation against a section. This | |
4224 | is what the native linker does. */ | |
4225 | h = sym_hashes[r_index]; | |
4226 | if (h != (struct aout_link_hash_entry *) NULL | |
4227 | && h->root.type == bfd_link_hash_defined) | |
4228 | { | |
4229 | asection *output_section; | |
4230 | ||
4231 | /* Change the r_extern value. */ | |
4232 | if (output_bfd->xvec->header_byteorder_big_p) | |
4233 | rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG; | |
4234 | else | |
4235 | rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE; | |
4236 | ||
4237 | /* Compute a new r_index. */ | |
4238 | output_section = h->root.u.def.section->output_section; | |
4239 | if (output_section == obj_textsec (output_bfd)) | |
4240 | r_index = N_TEXT; | |
4241 | else if (output_section == obj_datasec (output_bfd)) | |
4242 | r_index = N_DATA; | |
4243 | else if (output_section == obj_bsssec (output_bfd)) | |
4244 | r_index = N_BSS; | |
4245 | else | |
4246 | r_index = N_ABS; | |
4247 | ||
4248 | /* Add the symbol value and the section VMA to the | |
4249 | addend stored in the contents. */ | |
4250 | relocation = (h->root.u.def.value | |
4251 | + output_section->vma | |
4252 | + h->root.u.def.section->output_offset); | |
4253 | } | |
4254 | else | |
4255 | { | |
4256 | /* We must change r_index according to the symbol | |
4257 | map. */ | |
4258 | r_index = symbol_map[r_index]; | |
4259 | ||
4260 | if (r_index == -1) | |
4261 | { | |
4262 | const char *name; | |
4263 | ||
4264 | name = strings + GET_WORD (input_bfd, | |
4265 | syms[r_index].e_strx); | |
4266 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
4267 | (finfo->info, name, input_bfd, input_section, | |
4268 | r_addr))) | |
4269 | return false; | |
4270 | r_index = 0; | |
4271 | } | |
4272 | ||
4273 | relocation = 0; | |
4274 | } | |
4275 | ||
4276 | /* Write out the new r_index value. */ | |
4277 | if (output_bfd->xvec->header_byteorder_big_p) | |
4278 | { | |
4279 | rel->r_index[0] = r_index >> 16; | |
4280 | rel->r_index[1] = r_index >> 8; | |
4281 | rel->r_index[2] = r_index; | |
4282 | } | |
4283 | else | |
4284 | { | |
4285 | rel->r_index[2] = r_index >> 16; | |
4286 | rel->r_index[1] = r_index >> 8; | |
4287 | rel->r_index[0] = r_index; | |
4288 | } | |
4289 | } | |
4290 | else | |
4291 | { | |
4292 | asection *section; | |
4293 | ||
4294 | /* This is a relocation against a section. We must | |
4295 | adjust by the amount that the section moved. */ | |
4296 | section = aout_reloc_index_to_section (input_bfd, r_index); | |
4297 | relocation = (section->output_section->vma | |
4298 | + section->output_offset | |
4299 | - section->vma); | |
4300 | } | |
4301 | ||
4302 | /* Change the address of the relocation. */ | |
4303 | PUT_WORD (output_bfd, | |
4304 | r_addr + input_section->output_offset, | |
4305 | rel->r_address); | |
4306 | ||
4307 | /* Adjust a PC relative relocation by removing the reference | |
e68de5d5 ILT |
4308 | to the original address in the section and including the |
4309 | reference to the new address. */ | |
4c3721d5 | 4310 | if (r_pcrel) |
e68de5d5 ILT |
4311 | relocation -= (input_section->output_section->vma |
4312 | + input_section->output_offset | |
4313 | - input_section->vma); | |
4c3721d5 ILT |
4314 | |
4315 | if (relocation == 0) | |
4316 | r = bfd_reloc_ok; | |
4317 | else | |
4318 | r = _bfd_relocate_contents (howto_table_std + howto_idx, | |
4319 | input_bfd, relocation, | |
4320 | contents + r_addr); | |
4321 | } | |
4322 | else | |
4323 | { | |
4324 | /* We are generating an executable, and must do a full | |
4325 | relocation. */ | |
4326 | if (r_extern) | |
4327 | { | |
4328 | struct aout_link_hash_entry *h; | |
4329 | ||
4330 | h = sym_hashes[r_index]; | |
e85e8bfe ILT |
4331 | |
4332 | if (check_dynamic_reloc != NULL) | |
4333 | { | |
4334 | boolean skip; | |
4335 | ||
4336 | if (! ((*check_dynamic_reloc) | |
4337 | (finfo->info, input_bfd, input_section, h, | |
4338 | (PTR) rel, &skip))) | |
4339 | return false; | |
4340 | if (skip) | |
4341 | continue; | |
4342 | } | |
4343 | ||
4c3721d5 ILT |
4344 | if (h != (struct aout_link_hash_entry *) NULL |
4345 | && h->root.type == bfd_link_hash_defined) | |
4346 | { | |
4347 | relocation = (h->root.u.def.value | |
4348 | + h->root.u.def.section->output_section->vma | |
4349 | + h->root.u.def.section->output_offset); | |
4350 | } | |
4298e311 ILT |
4351 | else if (h != (struct aout_link_hash_entry *) NULL |
4352 | && h->root.type == bfd_link_hash_weak) | |
4353 | relocation = 0; | |
4c3721d5 ILT |
4354 | else |
4355 | { | |
4356 | const char *name; | |
4357 | ||
4358 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
4359 | if (! ((*finfo->info->callbacks->undefined_symbol) | |
4360 | (finfo->info, name, input_bfd, input_section, | |
4361 | r_addr))) | |
4362 | return false; | |
4363 | relocation = 0; | |
4364 | } | |
4365 | } | |
4366 | else | |
4367 | { | |
4368 | asection *section; | |
4369 | ||
4370 | section = aout_reloc_index_to_section (input_bfd, r_index); | |
4371 | relocation = (section->output_section->vma | |
4372 | + section->output_offset | |
4373 | - section->vma); | |
e68de5d5 ILT |
4374 | if (r_pcrel) |
4375 | relocation += input_section->vma; | |
4c3721d5 ILT |
4376 | } |
4377 | ||
4c3721d5 ILT |
4378 | r = _bfd_final_link_relocate (howto_table_std + howto_idx, |
4379 | input_bfd, input_section, | |
4380 | contents, r_addr, relocation, | |
4381 | (bfd_vma) 0); | |
4382 | } | |
4383 | ||
4384 | if (r != bfd_reloc_ok) | |
4385 | { | |
4386 | switch (r) | |
4387 | { | |
4388 | default: | |
4389 | case bfd_reloc_outofrange: | |
4390 | abort (); | |
4391 | case bfd_reloc_overflow: | |
4991ebb9 ILT |
4392 | { |
4393 | const char *name; | |
4394 | ||
4395 | if (r_extern) | |
4396 | name = strings + GET_WORD (input_bfd, | |
4397 | syms[r_index].e_strx); | |
4398 | else | |
4399 | { | |
4400 | asection *s; | |
4401 | ||
4402 | s = aout_reloc_index_to_section (input_bfd, r_index); | |
4403 | name = bfd_section_name (input_bfd, s); | |
4404 | } | |
4405 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
4406 | (finfo->info, name, howto_table_std[howto_idx].name, | |
4407 | (bfd_vma) 0, input_bfd, input_section, r_addr))) | |
4408 | return false; | |
4409 | } | |
4c3721d5 ILT |
4410 | break; |
4411 | } | |
4412 | } | |
4413 | } | |
4414 | ||
4415 | return true; | |
4416 | } | |
4417 | ||
4418 | /* Relocate an a.out section using extended a.out relocs. */ | |
4419 | ||
4420 | static boolean | |
4421 | aout_link_input_section_ext (finfo, input_bfd, input_section, relocs, | |
4422 | rel_size, contents, symbol_map) | |
4423 | struct aout_final_link_info *finfo; | |
4424 | bfd *input_bfd; | |
4425 | asection *input_section; | |
4426 | struct reloc_ext_external *relocs; | |
4427 | bfd_size_type rel_size; | |
4428 | bfd_byte *contents; | |
4429 | int *symbol_map; | |
4430 | { | |
e85e8bfe ILT |
4431 | boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *, |
4432 | bfd *, asection *, | |
4433 | struct aout_link_hash_entry *, | |
4434 | PTR, boolean *)); | |
4c3721d5 ILT |
4435 | bfd *output_bfd; |
4436 | boolean relocateable; | |
4437 | struct external_nlist *syms; | |
4438 | char *strings; | |
4439 | struct aout_link_hash_entry **sym_hashes; | |
4440 | bfd_size_type reloc_count; | |
4441 | register struct reloc_ext_external *rel; | |
4442 | struct reloc_ext_external *rel_end; | |
4443 | ||
4444 | output_bfd = finfo->output_bfd; | |
e85e8bfe | 4445 | check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc; |
4c3721d5 ILT |
4446 | |
4447 | BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE); | |
4448 | BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p | |
4449 | == output_bfd->xvec->header_byteorder_big_p); | |
4450 | ||
4451 | relocateable = finfo->info->relocateable; | |
4452 | syms = obj_aout_external_syms (input_bfd); | |
4453 | strings = obj_aout_external_strings (input_bfd); | |
4454 | sym_hashes = obj_aout_sym_hashes (input_bfd); | |
4455 | ||
4456 | reloc_count = rel_size / RELOC_EXT_SIZE; | |
4457 | rel = relocs; | |
4458 | rel_end = rel + reloc_count; | |
4459 | for (; rel < rel_end; rel++) | |
4460 | { | |
4461 | bfd_vma r_addr; | |
4462 | int r_index; | |
4463 | int r_extern; | |
4464 | int r_type; | |
4465 | bfd_vma r_addend; | |
4466 | bfd_vma relocation; | |
4467 | ||
4468 | r_addr = GET_SWORD (input_bfd, rel->r_address); | |
4469 | ||
4470 | if (input_bfd->xvec->header_byteorder_big_p) | |
4471 | { | |
4472 | r_index = ((rel->r_index[0] << 16) | |
4473 | | (rel->r_index[1] << 8) | |
4474 | | rel->r_index[2]); | |
4475 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
4476 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
4477 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
4478 | } | |
4479 | else | |
4480 | { | |
4481 | r_index = ((rel->r_index[2] << 16) | |
4482 | | (rel->r_index[1] << 8) | |
4483 | | rel->r_index[0]); | |
4484 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
4485 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
4486 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
4487 | } | |
4488 | ||
4489 | r_addend = GET_SWORD (input_bfd, rel->r_addend); | |
4490 | ||
e68de5d5 ILT |
4491 | BFD_ASSERT (r_type >= 0 |
4492 | && r_type < TABLE_SIZE (howto_table_ext)); | |
4493 | ||
4c3721d5 ILT |
4494 | if (relocateable) |
4495 | { | |
4496 | /* We are generating a relocateable output file, and must | |
4497 | modify the reloc accordingly. */ | |
4498 | if (r_extern) | |
4499 | { | |
4500 | struct aout_link_hash_entry *h; | |
4501 | ||
4502 | /* If we know the symbol this relocation is against, | |
4503 | convert it into a relocation against a section. This | |
4504 | is what the native linker does. */ | |
4505 | h = sym_hashes[r_index]; | |
4506 | if (h != (struct aout_link_hash_entry *) NULL | |
4507 | && h->root.type == bfd_link_hash_defined) | |
4508 | { | |
4509 | asection *output_section; | |
4510 | ||
4511 | /* Change the r_extern value. */ | |
4512 | if (output_bfd->xvec->header_byteorder_big_p) | |
4513 | rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG; | |
4514 | else | |
4515 | rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE; | |
4516 | ||
4517 | /* Compute a new r_index. */ | |
4518 | output_section = h->root.u.def.section->output_section; | |
4519 | if (output_section == obj_textsec (output_bfd)) | |
4520 | r_index = N_TEXT; | |
4521 | else if (output_section == obj_datasec (output_bfd)) | |
4522 | r_index = N_DATA; | |
4523 | else if (output_section == obj_bsssec (output_bfd)) | |
4524 | r_index = N_BSS; | |
4525 | else | |
4526 | r_index = N_ABS; | |
4527 | ||
4528 | /* Add the symbol value and the section VMA to the | |
4529 | addend. */ | |
4530 | relocation = (h->root.u.def.value | |
4531 | + output_section->vma | |
4532 | + h->root.u.def.section->output_offset); | |
e68de5d5 ILT |
4533 | |
4534 | /* Now RELOCATION is the VMA of the final | |
4535 | destination. If this is a PC relative reloc, | |
4536 | then ADDEND is the negative of the source VMA. | |
4537 | We want to set ADDEND to the difference between | |
4538 | the destination VMA and the source VMA, which | |
4539 | means we must adjust RELOCATION by the change in | |
4540 | the source VMA. This is done below. */ | |
4c3721d5 ILT |
4541 | } |
4542 | else | |
4543 | { | |
4544 | /* We must change r_index according to the symbol | |
4545 | map. */ | |
4546 | r_index = symbol_map[r_index]; | |
4547 | ||
4548 | if (r_index == -1) | |
4549 | { | |
4550 | const char *name; | |
4551 | ||
4552 | name = (strings | |
4553 | + GET_WORD (input_bfd, syms[r_index].e_strx)); | |
4554 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
4555 | (finfo->info, name, input_bfd, input_section, | |
4556 | r_addr))) | |
4557 | return false; | |
4558 | r_index = 0; | |
4559 | } | |
4560 | ||
4561 | relocation = 0; | |
e68de5d5 ILT |
4562 | |
4563 | /* If this is a PC relative reloc, then the addend | |
4564 | is the negative of the source VMA. We must | |
4565 | adjust it by the change in the source VMA. This | |
4566 | is done below. */ | |
4c3721d5 ILT |
4567 | } |
4568 | ||
4569 | /* Write out the new r_index value. */ | |
4570 | if (output_bfd->xvec->header_byteorder_big_p) | |
4571 | { | |
4572 | rel->r_index[0] = r_index >> 16; | |
4573 | rel->r_index[1] = r_index >> 8; | |
4574 | rel->r_index[2] = r_index; | |
4575 | } | |
4576 | else | |
4577 | { | |
4578 | rel->r_index[2] = r_index >> 16; | |
4579 | rel->r_index[1] = r_index >> 8; | |
4580 | rel->r_index[0] = r_index; | |
4581 | } | |
4582 | } | |
4583 | else | |
4584 | { | |
4585 | asection *section; | |
4586 | ||
4587 | /* This is a relocation against a section. We must | |
4588 | adjust by the amount that the section moved. */ | |
4589 | section = aout_reloc_index_to_section (input_bfd, r_index); | |
4590 | relocation = (section->output_section->vma | |
4591 | + section->output_offset | |
4592 | - section->vma); | |
4c3721d5 | 4593 | |
e68de5d5 ILT |
4594 | /* If this is a PC relative reloc, then the addend is |
4595 | the difference in VMA between the destination and the | |
4596 | source. We have just adjusted for the change in VMA | |
4597 | of the destination, so we must also adjust by the | |
4598 | change in VMA of the source. This is done below. */ | |
4c3721d5 ILT |
4599 | } |
4600 | ||
e68de5d5 ILT |
4601 | /* As described above, we must always adjust a PC relative |
4602 | reloc by the change in VMA of the source. */ | |
4603 | if (howto_table_ext[r_type].pc_relative) | |
4604 | relocation -= (input_section->output_section->vma | |
4605 | + input_section->output_offset | |
4606 | - input_section->vma); | |
4607 | ||
4c3721d5 ILT |
4608 | /* Change the addend if necessary. */ |
4609 | if (relocation != 0) | |
4610 | PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend); | |
4611 | ||
4612 | /* Change the address of the relocation. */ | |
4613 | PUT_WORD (output_bfd, | |
4614 | r_addr + input_section->output_offset, | |
4615 | rel->r_address); | |
4616 | } | |
4617 | else | |
4618 | { | |
4619 | bfd_reloc_status_type r; | |
4620 | ||
4621 | /* We are generating an executable, and must do a full | |
4622 | relocation. */ | |
4623 | if (r_extern) | |
4624 | { | |
4625 | struct aout_link_hash_entry *h; | |
4626 | ||
4627 | h = sym_hashes[r_index]; | |
e85e8bfe ILT |
4628 | |
4629 | if (check_dynamic_reloc != NULL) | |
4630 | { | |
4631 | boolean skip; | |
4632 | ||
4633 | if (! ((*check_dynamic_reloc) | |
4634 | (finfo->info, input_bfd, input_section, h, | |
4635 | (PTR) rel, &skip))) | |
4636 | return false; | |
4637 | if (skip) | |
4638 | continue; | |
4639 | } | |
4640 | ||
4c3721d5 ILT |
4641 | if (h != (struct aout_link_hash_entry *) NULL |
4642 | && h->root.type == bfd_link_hash_defined) | |
4643 | { | |
4644 | relocation = (h->root.u.def.value | |
4645 | + h->root.u.def.section->output_section->vma | |
4646 | + h->root.u.def.section->output_offset); | |
4647 | } | |
4298e311 ILT |
4648 | else if (h != (struct aout_link_hash_entry *) NULL |
4649 | && h->root.type == bfd_link_hash_weak) | |
4650 | relocation = 0; | |
4c3721d5 ILT |
4651 | else |
4652 | { | |
4653 | const char *name; | |
4654 | ||
4655 | name = strings + GET_WORD (input_bfd, syms[r_index].e_strx); | |
4656 | if (! ((*finfo->info->callbacks->undefined_symbol) | |
4657 | (finfo->info, name, input_bfd, input_section, | |
4658 | r_addr))) | |
4659 | return false; | |
4660 | relocation = 0; | |
4661 | } | |
4662 | } | |
4663 | else | |
4664 | { | |
4665 | asection *section; | |
4666 | ||
4667 | section = aout_reloc_index_to_section (input_bfd, r_index); | |
e68de5d5 ILT |
4668 | |
4669 | /* If this is a PC relative reloc, then R_ADDEND is the | |
4670 | difference between the two vmas, or | |
4671 | old_dest_sec + old_dest_off - (old_src_sec + old_src_off) | |
4672 | where | |
4673 | old_dest_sec == section->vma | |
4674 | and | |
4675 | old_src_sec == input_section->vma | |
4676 | and | |
4677 | old_src_off == r_addr | |
4678 | ||
4679 | _bfd_final_link_relocate expects RELOCATION + | |
4680 | R_ADDEND to be the VMA of the destination minus | |
4681 | r_addr (the minus r_addr is because this relocation | |
4682 | is not pcrel_offset, which is a bit confusing and | |
4683 | should, perhaps, be changed), or | |
4684 | new_dest_sec | |
4685 | where | |
4686 | new_dest_sec == output_section->vma + output_offset | |
4687 | We arrange for this to happen by setting RELOCATION to | |
4688 | new_dest_sec + old_src_sec - old_dest_sec | |
4689 | ||
4690 | If this is not a PC relative reloc, then R_ADDEND is | |
4691 | simply the VMA of the destination, so we set | |
4692 | RELOCATION to the change in the destination VMA, or | |
4693 | new_dest_sec - old_dest_sec | |
4694 | */ | |
4c3721d5 ILT |
4695 | relocation = (section->output_section->vma |
4696 | + section->output_offset | |
4697 | - section->vma); | |
e68de5d5 ILT |
4698 | if (howto_table_ext[r_type].pc_relative) |
4699 | relocation += input_section->vma; | |
4c3721d5 ILT |
4700 | } |
4701 | ||
4c3721d5 ILT |
4702 | r = _bfd_final_link_relocate (howto_table_ext + r_type, |
4703 | input_bfd, input_section, | |
4704 | contents, r_addr, relocation, | |
4705 | r_addend); | |
4706 | if (r != bfd_reloc_ok) | |
4707 | { | |
4708 | switch (r) | |
4709 | { | |
4710 | default: | |
4711 | case bfd_reloc_outofrange: | |
4712 | abort (); | |
4713 | case bfd_reloc_overflow: | |
4991ebb9 ILT |
4714 | { |
4715 | const char *name; | |
4716 | ||
4717 | if (r_extern) | |
4718 | name = strings + GET_WORD (input_bfd, | |
4719 | syms[r_index].e_strx); | |
4720 | else | |
4721 | { | |
4722 | asection *s; | |
4723 | ||
4724 | s = aout_reloc_index_to_section (input_bfd, r_index); | |
4725 | name = bfd_section_name (input_bfd, s); | |
4726 | } | |
4727 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
4728 | (finfo->info, name, howto_table_ext[r_type].name, | |
4729 | r_addend, input_bfd, input_section, r_addr))) | |
4730 | return false; | |
4731 | } | |
4c3721d5 ILT |
4732 | break; |
4733 | } | |
4734 | } | |
4735 | } | |
4736 | } | |
4737 | ||
4738 | return true; | |
4739 | } | |
ec099b4b ILT |
4740 | |
4741 | /* Handle a link order which is supposed to generate a reloc. */ | |
4742 | ||
4743 | static boolean | |
4744 | aout_link_reloc_link_order (finfo, o, p) | |
4745 | struct aout_final_link_info *finfo; | |
4746 | asection *o; | |
4747 | struct bfd_link_order *p; | |
4748 | { | |
4749 | struct bfd_link_order_reloc *pr; | |
4750 | int r_index; | |
4751 | int r_extern; | |
4752 | const reloc_howto_type *howto; | |
4753 | file_ptr *reloff_ptr; | |
4754 | struct reloc_std_external srel; | |
4755 | struct reloc_ext_external erel; | |
4756 | PTR rel_ptr; | |
4757 | ||
4758 | pr = p->u.reloc.p; | |
4759 | ||
4760 | if (p->type == bfd_section_reloc_link_order) | |
4761 | { | |
4762 | r_extern = 0; | |
4587b578 | 4763 | if (bfd_is_abs_section (pr->u.section)) |
ec099b4b ILT |
4764 | r_index = N_ABS | N_EXT; |
4765 | else | |
4766 | { | |
4767 | BFD_ASSERT (pr->u.section->owner == finfo->output_bfd); | |
4768 | r_index = pr->u.section->target_index; | |
4769 | } | |
4770 | } | |
4771 | else | |
4772 | { | |
4773 | struct aout_link_hash_entry *h; | |
4774 | ||
4775 | BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); | |
4776 | r_extern = 1; | |
4777 | h = aout_link_hash_lookup (aout_hash_table (finfo->info), | |
4778 | pr->u.name, false, false, true); | |
4779 | if (h != (struct aout_link_hash_entry *) NULL | |
4780 | && h->indx == -1) | |
4781 | r_index = h->indx; | |
4782 | else | |
4783 | { | |
4784 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
4785 | (finfo->info, pr->u.name, (bfd *) NULL, | |
4786 | (asection *) NULL, (bfd_vma) 0))) | |
4787 | return false; | |
4788 | r_index = 0; | |
4789 | } | |
4790 | } | |
4791 | ||
4792 | howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc); | |
4793 | if (howto == (const reloc_howto_type *) NULL) | |
4794 | { | |
4795 | bfd_set_error (bfd_error_bad_value); | |
4796 | return false; | |
4797 | } | |
4798 | ||
4799 | if (o == obj_textsec (finfo->output_bfd)) | |
4800 | reloff_ptr = &finfo->treloff; | |
4801 | else if (o == obj_datasec (finfo->output_bfd)) | |
4802 | reloff_ptr = &finfo->dreloff; | |
4803 | else | |
4804 | abort (); | |
4805 | ||
4806 | if (obj_reloc_entry_size (finfo->output_bfd) == RELOC_STD_SIZE) | |
4807 | { | |
4808 | int r_pcrel; | |
4809 | int r_baserel; | |
4810 | int r_jmptable; | |
4811 | int r_relative; | |
4812 | int r_length; | |
4813 | ||
4814 | r_pcrel = howto->pc_relative; | |
4815 | r_baserel = (howto->type & 8) != 0; | |
cb9461ff JK |
4816 | r_jmptable = (howto->type & 16) != 0; |
4817 | r_relative = (howto->type & 32) != 0; | |
ec099b4b ILT |
4818 | r_length = howto->size; |
4819 | ||
4820 | PUT_WORD (finfo->output_bfd, p->offset, srel.r_address); | |
4821 | if (finfo->output_bfd->xvec->header_byteorder_big_p) | |
4822 | { | |
4823 | srel.r_index[0] = r_index >> 16; | |
4824 | srel.r_index[1] = r_index >> 8; | |
4825 | srel.r_index[2] = r_index; | |
4826 | srel.r_type[0] = | |
4827 | ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) | |
4828 | | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) | |
4829 | | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) | |
4830 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) | |
4831 | | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) | |
4832 | | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
4833 | } | |
4834 | else | |
4835 | { | |
4836 | srel.r_index[2] = r_index >> 16; | |
4837 | srel.r_index[1] = r_index >> 8; | |
4838 | srel.r_index[0] = r_index; | |
4839 | srel.r_type[0] = | |
4840 | ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) | |
4841 | | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) | |
4842 | | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) | |
4843 | | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) | |
4844 | | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) | |
4845 | | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
4846 | } | |
4847 | ||
4848 | rel_ptr = (PTR) &srel; | |
4849 | ||
4850 | /* We have to write the addend into the object file, since | |
4851 | standard a.out relocs are in place. It would be more | |
4852 | reliable if we had the current contents of the file here, | |
4853 | rather than assuming zeroes, but we can't read the file since | |
4854 | it was opened using bfd_openw. */ | |
4855 | if (pr->addend != 0) | |
4856 | { | |
4857 | bfd_size_type size; | |
4858 | bfd_reloc_status_type r; | |
4859 | bfd_byte *buf; | |
4860 | boolean ok; | |
4861 | ||
4862 | size = bfd_get_reloc_size (howto); | |
e85e8bfe | 4863 | buf = (bfd_byte *) bfd_zmalloc (size); |
ec099b4b ILT |
4864 | if (buf == (bfd_byte *) NULL) |
4865 | { | |
4866 | bfd_set_error (bfd_error_no_memory); | |
4867 | return false; | |
4868 | } | |
4869 | r = _bfd_relocate_contents (howto, finfo->output_bfd, | |
4870 | pr->addend, buf); | |
4871 | switch (r) | |
4872 | { | |
4873 | case bfd_reloc_ok: | |
4874 | break; | |
4875 | default: | |
4876 | case bfd_reloc_outofrange: | |
4877 | abort (); | |
4878 | case bfd_reloc_overflow: | |
4879 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
4880 | (finfo->info, | |
4881 | (p->type == bfd_section_reloc_link_order | |
4882 | ? bfd_section_name (finfo->output_bfd, | |
4883 | pr->u.section) | |
4884 | : pr->u.name), | |
4885 | howto->name, pr->addend, (bfd *) NULL, | |
4886 | (asection *) NULL, (bfd_vma) 0))) | |
4887 | { | |
4888 | free (buf); | |
4889 | return false; | |
4890 | } | |
4891 | break; | |
4892 | } | |
4893 | ok = bfd_set_section_contents (finfo->output_bfd, o, | |
4894 | (PTR) buf, | |
4895 | (file_ptr) p->offset, | |
4896 | size); | |
4897 | free (buf); | |
4898 | if (! ok) | |
4899 | return false; | |
4900 | } | |
4901 | } | |
4902 | else | |
4903 | { | |
4904 | PUT_WORD (finfo->output_bfd, p->offset, erel.r_address); | |
4905 | ||
4906 | if (finfo->output_bfd->xvec->header_byteorder_big_p) | |
4907 | { | |
4908 | erel.r_index[0] = r_index >> 16; | |
4909 | erel.r_index[1] = r_index >> 8; | |
4910 | erel.r_index[2] = r_index; | |
4911 | erel.r_type[0] = | |
4912 | ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0) | |
4913 | | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
4914 | } | |
4915 | else | |
4916 | { | |
4917 | erel.r_index[2] = r_index >> 16; | |
4918 | erel.r_index[1] = r_index >> 8; | |
4919 | erel.r_index[0] = r_index; | |
4920 | erel.r_type[0] = | |
4921 | (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0) | |
4922 | | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
4923 | } | |
4924 | ||
4925 | PUT_WORD (finfo->output_bfd, pr->addend, erel.r_addend); | |
4926 | ||
4927 | rel_ptr = (PTR) &erel; | |
4928 | } | |
4929 | ||
4930 | if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 | |
4931 | || (bfd_write (rel_ptr, (bfd_size_type) 1, | |
4932 | obj_reloc_entry_size (finfo->output_bfd), | |
4933 | finfo->output_bfd) | |
4934 | != obj_reloc_entry_size (finfo->output_bfd))) | |
4935 | return false; | |
4936 | ||
4937 | *reloff_ptr += obj_reloc_entry_size (finfo->output_bfd); | |
4938 | ||
4939 | /* Assert that the relocs have not run into the symbols, and that n | |
4940 | the text relocs have not run into the data relocs. */ | |
4941 | BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd) | |
4942 | && (reloff_ptr != &finfo->treloff | |
4943 | || (*reloff_ptr | |
4944 | <= obj_datasec (finfo->output_bfd)->rel_filepos))); | |
4945 | ||
4946 | return true; | |
4947 | } |