Commit | Line | Data |
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a44f2895 TW |
1 | /* COFF information for TI COFF support. Definitions in this file should be |
2 | customized in a target-specific file, and then this file included (see | |
4f1d9bd8 NC |
3 | tic54x.h for an example). |
4 | ||
2571583a | 5 | Copyright (C) 2000-2017 Free Software Foundation, Inc. |
4f1d9bd8 NC |
6 | |
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
e4e42b45 | 9 | the Free Software Foundation; either version 3 of the License, or |
4f1d9bd8 NC |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
e4e42b45 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
a44f2895 TW |
22 | #ifndef COFF_TI_H |
23 | #define COFF_TI_H | |
81635ce4 | 24 | |
4f1d9bd8 NC |
25 | /* Note "coff/external.h is not used because TI adds extra fields to the structures. */ |
26 | ||
81635ce4 TW |
27 | /********************** FILE HEADER **********************/ |
28 | ||
4f1d9bd8 NC |
29 | struct external_filehdr |
30 | { | |
31 | char f_magic[2]; /* magic number */ | |
32 | char f_nscns[2]; /* number of sections */ | |
33 | char f_timdat[4]; /* time & date stamp */ | |
34 | char f_symptr[4]; /* file pointer to symtab */ | |
35 | char f_nsyms[4]; /* number of symtab entries */ | |
36 | char f_opthdr[2]; /* sizeof(optional hdr) */ | |
37 | char f_flags[2]; /* flags */ | |
38 | char f_target_id[2]; /* magic no. (TI COFF-specific) */ | |
39 | }; | |
81635ce4 TW |
40 | |
41 | /* COFF0 has magic number in f_magic, and omits f_target_id from the file | |
42 | header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2 | |
43 | and the target-specific magic number is found in f_target_id */ | |
44 | ||
45 | #define TICOFF0MAGIC TI_TARGET_ID | |
46 | #define TICOFF1MAGIC 0x00C1 | |
47 | #define TICOFF2MAGIC 0x00C2 | |
48 | #define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */ | |
49 | #define TICOFF 1 /* customize coffcode.h */ | |
50 | ||
51 | /* The target_id field changes depending on the particular CPU target */ | |
52 | /* for COFF0, the target id appeared in f_magic, where COFFX magic is now */ | |
53 | #ifndef TI_TARGET_ID | |
54 | #error "TI_TARGET_ID needs to be defined for your CPU" | |
55 | #endif | |
56 | ||
57 | /* Which bfd_arch to use... */ | |
58 | #ifndef TICOFF_TARGET_ARCH | |
59 | #error "TICOFF_TARGET_ARCH needs to be defined for your CPU" | |
60 | #endif | |
61 | ||
0da35f8b SS |
62 | #ifndef TICOFF_TARGET_MACHINE_GET |
63 | #define TICOFF_TARGET_MACHINE_GET(FLAGS) 0 | |
64 | #endif | |
65 | ||
66 | #ifndef TICOFF_TARGET_MACHINE_SET | |
67 | #define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE) | |
68 | #endif | |
69 | ||
81635ce4 TW |
70 | /* Default to COFF2 for file output */ |
71 | #ifndef TICOFF_DEFAULT_MAGIC | |
72 | #define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC | |
73 | #endif | |
74 | ||
75 | /* This value is made available in the rare case where a bfd is unavailable */ | |
76 | #ifndef OCTETS_PER_BYTE_POWER | |
d58c3cb8 | 77 | #error "OCTETS_PER_BYTE_POWER not defined for this CPU" |
81635ce4 TW |
78 | #else |
79 | #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER) | |
80 | #endif | |
81 | ||
82 | /* default alignment is on a byte (not octet!) boundary */ | |
83 | #ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER | |
84 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0 | |
85 | #endif | |
86 | ||
87 | /* TI COFF encodes the section alignment in the section header flags */ | |
88 | #define COFF_ALIGN_IN_SECTION_HEADER 1 | |
89 | #define COFF_ALIGN_IN_S_FLAGS 1 | |
90 | /* requires a power-of-two argument */ | |
91 | #define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X)&0xF)<<8)) | |
92 | /* result is a power of two */ | |
93 | #define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF) | |
94 | ||
95 | #define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0) | |
96 | #define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01) | |
97 | ||
98 | #define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC) | |
99 | #define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC || (x).f_target_id != TI_TARGET_ID) | |
100 | #define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC || (x).f_target_id != TI_TARGET_ID) | |
101 | ||
102 | /* we need to read/write an extra field in the coff file header */ | |
103 | #ifndef COFF_ADJUST_FILEHDR_IN_POST | |
2eda3bbc AM |
104 | #define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \ |
105 | do \ | |
106 | { \ | |
62cc2e1f JK |
107 | if (!COFF0_P (abfd)) \ |
108 | ((struct internal_filehdr *)(dst))->f_target_id = \ | |
109 | H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id); \ | |
2eda3bbc AM |
110 | } \ |
111 | while (0) | |
81635ce4 TW |
112 | #endif |
113 | ||
114 | #ifndef COFF_ADJUST_FILEHDR_OUT_POST | |
2eda3bbc | 115 | #define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \ |
62cc2e1f JK |
116 | do \ |
117 | { \ | |
118 | if (!COFF0_P (abfd)) \ | |
119 | H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \ | |
120 | ((FILHDR *)(dst))->f_target_id); \ | |
121 | } \ | |
2eda3bbc | 122 | while (0) |
81635ce4 TW |
123 | #endif |
124 | ||
125 | #define FILHDR struct external_filehdr | |
126 | #define FILHSZ 22 | |
127 | #define FILHSZ_V0 20 /* COFF0 omits target_id field */ | |
128 | ||
129 | /* File header flags */ | |
130 | #define F_RELFLG (0x0001) | |
131 | #define F_EXEC (0x0002) | |
132 | #define F_LNNO (0x0004) | |
026df7c5 | 133 | #define F_VERS (0x0010) /* TMS320C4x code */ |
81635ce4 TW |
134 | /* F_LSYMS needs to be redefined in your source file */ |
135 | #define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */ | |
136 | ||
137 | #define F_10 0x00 /* file built for TMS320C1x devices */ | |
138 | #define F_20 0x10 /* file built for TMS320C2x devices */ | |
139 | #define F_25 0x20 /* file built for TMS320C2x/C5x devices */ | |
140 | #define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */ | |
141 | #define F_SYMMERGE 0x1000 /* duplicate symbols were removed */ | |
142 | ||
143 | /********************** OPTIONAL HEADER **********************/ | |
144 | ||
145 | ||
146 | typedef struct | |
147 | { | |
148 | char magic[2]; /* type of file (0x108) */ | |
149 | char vstamp[2]; /* version stamp */ | |
150 | char tsize[4]; /* text size in bytes, padded to FW bdry*/ | |
151 | char dsize[4]; /* initialized data " " */ | |
152 | char bsize[4]; /* uninitialized data " " */ | |
153 | char entry[4]; /* entry pt. */ | |
154 | char text_start[4]; /* base of text used for this file */ | |
155 | char data_start[4]; /* base of data used for this file */ | |
156 | } | |
157 | AOUTHDR; | |
158 | ||
159 | ||
160 | #define AOUTHDRSZ 28 | |
161 | #define AOUTSZ 28 | |
162 | ||
163 | ||
164 | /********************** SECTION HEADER **********************/ | |
165 | /* COFF0, COFF1 */ | |
166 | struct external_scnhdr_v01 { | |
167 | char s_name[8]; /* section name */ | |
168 | char s_paddr[4]; /* physical address, aliased s_nlib */ | |
169 | char s_vaddr[4]; /* virtual address */ | |
170 | char s_size[4]; /* section size (in WORDS) */ | |
171 | char s_scnptr[4]; /* file ptr to raw data for section */ | |
172 | char s_relptr[4]; /* file ptr to relocation */ | |
173 | char s_lnnoptr[4]; /* file ptr to line numbers */ | |
174 | char s_nreloc[2]; /* number of relocation entries */ | |
175 | char s_nlnno[2]; /* number of line number entries*/ | |
176 | char s_flags[2]; /* flags */ | |
177 | char s_reserved[1]; /* reserved */ | |
178 | char s_page[1]; /* section page number (LOAD) */ | |
179 | }; | |
180 | ||
181 | /* COFF2 */ | |
182 | struct external_scnhdr { | |
183 | char s_name[8]; /* section name */ | |
184 | char s_paddr[4]; /* physical address, aliased s_nlib */ | |
185 | char s_vaddr[4]; /* virtual address */ | |
186 | char s_size[4]; /* section size (in WORDS) */ | |
187 | char s_scnptr[4]; /* file ptr to raw data for section */ | |
188 | char s_relptr[4]; /* file ptr to relocation */ | |
189 | char s_lnnoptr[4]; /* file ptr to line numbers */ | |
190 | char s_nreloc[4]; /* number of relocation entries */ | |
191 | char s_nlnno[4]; /* number of line number entries*/ | |
192 | char s_flags[4]; /* flags */ | |
193 | char s_reserved[2]; /* reserved */ | |
194 | char s_page[2]; /* section page number (LOAD) */ | |
195 | }; | |
196 | ||
197 | /* | |
198 | * Special section flags | |
81635ce4 | 199 | */ |
81635ce4 TW |
200 | |
201 | /* TI COFF defines these flags; | |
202 | STYP_CLINK: the section should be excluded from the final | |
203 | linker output if there are no references found to any symbol in the section | |
204 | STYP_BLOCK: the section should be blocked, i.e. if the section would cross | |
205 | a page boundary, it is started at a page boundary instead. | |
a44f2895 TW |
206 | TI COFF puts the section alignment power of two in the section flags |
207 | e.g. 2**N is alignment, flags |= (N & 0xF) << 8 | |
81635ce4 TW |
208 | */ |
209 | #define STYP_CLINK (0x4000) | |
210 | #define STYP_BLOCK (0x1000) | |
211 | #define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */ | |
212 | ||
213 | #define SCNHDR_V01 struct external_scnhdr_v01 | |
214 | #define SCNHDR struct external_scnhdr | |
215 | #define SCNHSZ_V01 40 /* for v0 and v1 */ | |
216 | #define SCNHSZ 48 | |
217 | ||
218 | /* COFF2 changes the offsets and sizes of these fields | |
219 | Assume we're dealing with the COFF2 scnhdr structure, and adjust | |
0146fc9d NC |
220 | accordingly. Note: The GNU C versions of some of these macros |
221 | are necessary in order to avoid compile time warnings triggered | |
222 | gcc's array bounds checking. The PUT_SCNHDR_PAGE macro also has | |
223 | the advantage on not evaluating LOC twice. */ | |
224 | ||
8cf3f354 AM |
225 | #define GET_SCNHDR_NRELOC(ABFD, LOC) \ |
226 | (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC)) | |
227 | #define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \ | |
228 | (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC)) | |
0146fc9d NC |
229 | #ifdef __GNUC__ |
230 | #define GET_SCNHDR_NLNNO(ABFD, LOC) \ | |
231 | ({ \ | |
232 | int nlnno; \ | |
233 | char * ptr = (LOC); \ | |
234 | if (COFF2_P (ABFD)) \ | |
235 | nlnno = H_GET_32 (ABFD, ptr); \ | |
236 | else \ | |
237 | nlnno = H_GET_16 (ABFD, ptr - 2); \ | |
238 | nlnno; \ | |
239 | }) | |
240 | #define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ | |
241 | do \ | |
242 | { \ | |
243 | char * ptr = (LOC); \ | |
244 | if (COFF2_P (ABFD)) \ | |
245 | H_PUT_32 (ABFD, VAL, ptr); \ | |
246 | else \ | |
247 | H_PUT_16 (ABFD, VAL, ptr - 2); \ | |
248 | } \ | |
249 | while (0) | |
250 | #define GET_SCNHDR_FLAGS(ABFD, LOC) \ | |
251 | ({ \ | |
252 | int flags; \ | |
253 | char * ptr = (LOC); \ | |
254 | if (COFF2_P (ABFD)) \ | |
255 | flags = H_GET_32 (ABFD, ptr); \ | |
256 | else \ | |
257 | flags = H_GET_16 (ABFD, ptr - 4); \ | |
258 | flags; \ | |
259 | }) | |
260 | #define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ | |
261 | do \ | |
262 | { \ | |
263 | char * ptr = (LOC); \ | |
264 | if (COFF2_P (ABFD)) \ | |
265 | H_PUT_32 (ABFD, VAL, ptr); \ | |
266 | else \ | |
267 | H_PUT_16 (ABFD, VAL, ptr - 4); \ | |
268 | } \ | |
269 | while (0) | |
270 | #define GET_SCNHDR_PAGE(ABFD, LOC) \ | |
271 | ({ \ | |
272 | unsigned page; \ | |
273 | char * ptr = (LOC); \ | |
274 | if (COFF2_P (ABFD)) \ | |
275 | page = H_GET_16 (ABFD, ptr); \ | |
276 | else \ | |
277 | page = (unsigned) H_GET_8 (ABFD, ptr - 7); \ | |
278 | page; \ | |
279 | }) | |
280 | /* On output, make sure that the "reserved" field is zero. */ | |
281 | #define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ | |
282 | do \ | |
283 | { \ | |
284 | char * ptr = (LOC); \ | |
285 | if (COFF2_P (ABFD)) \ | |
286 | H_PUT_16 (ABFD, VAL, ptr); \ | |
287 | else \ | |
288 | { \ | |
289 | H_PUT_8 (ABFD, VAL, ptr - 7); \ | |
290 | H_PUT_8 (ABFD, 0, ptr - 8); \ | |
291 | } \ | |
292 | } \ | |
293 | while (0) | |
294 | #else | |
8cf3f354 AM |
295 | #define GET_SCNHDR_NLNNO(ABFD, LOC) \ |
296 | (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2)) | |
297 | #define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ | |
298 | (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 2)) | |
299 | #define GET_SCNHDR_FLAGS(ABFD, LOC) \ | |
300 | (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4)) | |
301 | #define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ | |
302 | (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4)) | |
303 | #define GET_SCNHDR_PAGE(ABFD, LOC) \ | |
304 | (COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7)) | |
0146fc9d | 305 | /* On output, make sure that the "reserved" field is zero. */ |
8cf3f354 | 306 | #define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ |
2eda3bbc | 307 | (COFF2_P (ABFD) \ |
8cf3f354 AM |
308 | ? H_PUT_16 (ABFD, VAL, LOC) \ |
309 | : H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8)) | |
0146fc9d NC |
310 | #endif |
311 | ||
81635ce4 TW |
312 | |
313 | /* TI COFF stores section size as number of bytes (address units, not octets), | |
314 | so adjust to be number of octets, which is what BFD expects */ | |
2eda3bbc AM |
315 | #define GET_SCNHDR_SIZE(ABFD, SZP) \ |
316 | (H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD)) | |
317 | #define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \ | |
318 | H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD), SZP) | |
319 | ||
320 | #define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \ | |
321 | do \ | |
322 | { \ | |
323 | ((struct internal_scnhdr *)(INT))->s_page = \ | |
324 | GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page); \ | |
325 | } \ | |
326 | while (0) | |
81635ce4 | 327 | |
44f74642 NC |
328 | /* The entire scnhdr may not be assigned. |
329 | Ensure that everything is initialized. */ | |
330 | #define COFF_ADJUST_SCNHDR_OUT_PRE(ABFD, INT, EXT) \ | |
331 | do \ | |
332 | { \ | |
333 | memset((EXT), 0, sizeof (SCNHDR)); \ | |
334 | } \ | |
335 | while (0) | |
336 | ||
81635ce4 TW |
337 | /* The line number and reloc overflow checking in coff_swap_scnhdr_out in |
338 | coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc. | |
339 | Due to different sized v0/v1/v2 section headers, we have to re-write these | |
340 | fields. | |
341 | */ | |
2eda3bbc AM |
342 | #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \ |
343 | do \ | |
344 | { \ | |
345 | PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno, \ | |
346 | ((SCNHDR *)(EXT))->s_nlnno); \ | |
347 | PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\ | |
348 | ((SCNHDR *)(EXT))->s_nreloc); \ | |
349 | PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags, \ | |
350 | ((SCNHDR *)(EXT))->s_flags); \ | |
351 | PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page, \ | |
352 | ((SCNHDR *)(EXT))->s_page); \ | |
353 | } \ | |
354 | while (0) | |
81635ce4 | 355 | |
81635ce4 TW |
356 | /* |
357 | * names of "special" sections | |
358 | */ | |
359 | #define _TEXT ".text" | |
360 | #define _DATA ".data" | |
361 | #define _BSS ".bss" | |
362 | #define _CINIT ".cinit" /* initialized C data */ | |
363 | #define _SCONST ".const" /* constants */ | |
364 | #define _SWITCH ".switch" /* switch tables */ | |
365 | #define _STACK ".stack" /* C stack */ | |
366 | #define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */ | |
367 | ||
368 | /********************** LINE NUMBERS **********************/ | |
369 | ||
370 | /* 1 line number entry for every "breakpointable" source line in a section. | |
371 | * Line numbers are grouped on a per function basis; first entry in a function | |
372 | * grouping will have l_lnno = 0 and in place of physical address will be the | |
373 | * symbol table index of the function name. | |
374 | */ | |
375 | struct external_lineno { | |
376 | union { | |
377 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ | |
378 | char l_paddr[4]; /* (physical) address of line number */ | |
379 | } l_addr; | |
380 | char l_lnno[2]; /* line number */ | |
381 | }; | |
382 | ||
383 | #define LINENO struct external_lineno | |
384 | #define LINESZ 6 | |
385 | ||
386 | ||
387 | /********************** SYMBOLS **********************/ | |
388 | ||
389 | /* NOTE: this is what a local label looks like in assembly source; what it | |
390 | looks like in COFF output is undefined */ | |
391 | #define TICOFF_LOCAL_LABEL_P(NAME) \ | |
392 | ((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \ | |
393 | || NAME[strlen(NAME)-1] == '?') | |
394 | ||
395 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ | |
396 | #define E_FILNMLEN 14 /* # characters in a file name */ | |
397 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ | |
398 | ||
399 | struct external_syment | |
400 | { | |
401 | union { | |
402 | char e_name[E_SYMNMLEN]; | |
403 | struct { | |
404 | char e_zeroes[4]; | |
405 | char e_offset[4]; | |
406 | } e; | |
407 | } e; | |
408 | char e_value[4]; | |
409 | char e_scnum[2]; | |
410 | char e_type[2]; | |
411 | char e_sclass[1]; | |
412 | char e_numaux[1]; | |
413 | }; | |
414 | ||
415 | ||
416 | #define N_BTMASK (017) | |
417 | #define N_TMASK (060) | |
418 | #define N_BTSHFT (4) | |
419 | #define N_TSHIFT (2) | |
420 | ||
421 | ||
422 | union external_auxent { | |
423 | struct { | |
424 | char x_tagndx[4]; /* str, un, or enum tag indx */ | |
425 | union { | |
426 | struct { | |
427 | char x_lnno[2]; /* declaration line number */ | |
428 | char x_size[2]; /* str/union/array size */ | |
429 | } x_lnsz; | |
430 | char x_fsize[4]; /* size of function */ | |
431 | } x_misc; | |
432 | union { | |
433 | struct { /* if ISFCN, tag, or .bb */ | |
434 | char x_lnnoptr[4]; /* ptr to fcn line # */ | |
435 | char x_endndx[4]; /* entry ndx past block end */ | |
436 | } x_fcn; | |
437 | struct { /* if ISARY, up to 4 dimen. */ | |
438 | char x_dimen[E_DIMNUM][2]; | |
439 | } x_ary; | |
440 | } x_fcnary; | |
441 | char x_tvndx[2]; /* tv index */ | |
442 | } x_sym; | |
443 | ||
444 | union { | |
445 | char x_fname[E_FILNMLEN]; | |
446 | struct { | |
447 | char x_zeroes[4]; | |
448 | char x_offset[4]; | |
449 | } x_n; | |
450 | } x_file; | |
451 | ||
452 | struct { | |
453 | char x_scnlen[4]; /* section length */ | |
454 | char x_nreloc[2]; /* # relocation entries */ | |
455 | char x_nlinno[2]; /* # line numbers */ | |
456 | } x_scn; | |
457 | ||
458 | struct { | |
459 | char x_tvfill[4]; /* tv fill value */ | |
460 | char x_tvlen[2]; /* length of .tv */ | |
461 | char x_tvran[2][2]; /* tv range */ | |
462 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ | |
463 | ||
464 | ||
465 | }; | |
466 | ||
467 | #define SYMENT struct external_syment | |
468 | #define SYMESZ 18 | |
469 | #define AUXENT union external_auxent | |
470 | #define AUXESZ 18 | |
471 | ||
472 | /* section lengths are in target bytes (not host bytes) */ | |
2eda3bbc AM |
473 | #define GET_SCN_SCNLEN(ABFD, EXT) \ |
474 | (H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD)) | |
475 | #define PUT_SCN_SCNLEN(ABFD, INT, EXT) \ | |
476 | H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD), (EXT)->x_scn.x_scnlen) | |
81635ce4 TW |
477 | |
478 | /* lnsz size is in bits in COFF file, in bytes in BFD */ | |
479 | #define GET_LNSZ_SIZE(abfd, ext) \ | |
96d56e9f | 480 | (H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (in_class != C_FIELD ? 8 : 1)) |
81635ce4 TW |
481 | |
482 | #define PUT_LNSZ_SIZE(abfd, in, ext) \ | |
96d56e9f | 483 | H_PUT_16 (abfd, ((in_class != C_FIELD) ? (in) * 8 : (in)), \ |
2eda3bbc | 484 | ext->x_sym.x_misc.x_lnsz.x_size) |
81635ce4 | 485 | |
6e917903 TW |
486 | /* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes |
487 | Also put the load page flag of the section into the symbol value if it's an | |
488 | address. */ | |
489 | #ifndef NEEDS_PAGE | |
490 | #define NEEDS_PAGE(X) 0 | |
491 | #define PAGE_MASK 0 | |
492 | #endif | |
2eda3bbc AM |
493 | #define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \ |
494 | do \ | |
495 | { \ | |
496 | struct internal_syment *dst = (struct internal_syment *)(INT); \ | |
497 | if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) \ | |
498 | dst->n_value /= 8; \ | |
6e917903 TW |
499 | else if (NEEDS_PAGE (dst->n_sclass)) { \ |
500 | asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \ | |
501 | dst->n_value |= (scn->lma & PAGE_MASK); \ | |
502 | } \ | |
2eda3bbc AM |
503 | } \ |
504 | while (0) | |
505 | ||
506 | #define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \ | |
507 | do \ | |
508 | { \ | |
509 | struct internal_syment *src = (struct internal_syment *)(INT); \ | |
510 | SYMENT *dst = (SYMENT *)(EXT); \ | |
511 | if (src->n_sclass == C_MOU || src->n_sclass == C_MOS) \ | |
512 | H_PUT_32 (abfd, src->n_value * 8, dst->e_value); \ | |
6e917903 TW |
513 | else if (NEEDS_PAGE (src->n_sclass)) { \ |
514 | H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value); \ | |
515 | } \ | |
2eda3bbc AM |
516 | } \ |
517 | while (0) | |
81635ce4 | 518 | |
a44f2895 TW |
519 | /* Detect section-relative absolute symbols so they get flagged with a sym |
520 | index of -1. | |
81635ce4 | 521 | */ |
2eda3bbc AM |
522 | #define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \ |
523 | ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \ | |
524 | && (RELOC)->howto->name[0] == 'A') | |
81635ce4 TW |
525 | |
526 | /********************** RELOCATION DIRECTIVES **********************/ | |
527 | ||
4f1d9bd8 NC |
528 | struct external_reloc_v0 |
529 | { | |
81635ce4 TW |
530 | char r_vaddr[4]; |
531 | char r_symndx[2]; | |
532 | char r_reserved[2]; | |
533 | char r_type[2]; | |
534 | }; | |
535 | ||
4f1d9bd8 NC |
536 | struct external_reloc |
537 | { | |
81635ce4 TW |
538 | char r_vaddr[4]; |
539 | char r_symndx[4]; | |
540 | char r_reserved[2]; /* extended pmad byte for COFF2 */ | |
541 | char r_type[2]; | |
542 | }; | |
543 | ||
544 | #define RELOC struct external_reloc | |
545 | #define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */ | |
546 | #define RELSZ 12 /* for COFF1/2 */ | |
547 | ||
5d42dfb5 AM |
548 | #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ |
549 | do memset (dst->r_reserved, 0, sizeof (dst->r_reserved)); while (0) | |
550 | ||
81635ce4 TW |
551 | /* various relocation types. */ |
552 | #define R_ABS 0x0000 /* no relocation */ | |
553 | #define R_REL13 0x002A /* 13-bit direct reference (???) */ | |
554 | #define R_PARTLS7 0x0028 /* 7 LSBs of an address */ | |
555 | #define R_PARTMS9 0x0029 /* 9MSBs of an address */ | |
556 | #define R_EXTWORD 0x002B /* 23-bit direct reference */ | |
557 | #define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/ | |
558 | #define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */ | |
a44f2895 TW |
559 | |
560 | #endif /* COFF_TI_H */ |