1 /* Support for 32-bit Alpha NLM (NetWare Loadable Module)
2 Copyright (C) 1993 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
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
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
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.
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
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* This file describes the 32 bit Alpha NLM format. You might think
22 that an Alpha chip would use a 64 bit format, but, for some reason,
31 #include "nlm/alpha-ext.h"
32 #define Nlm_External_Fixed_Header Nlm32_alpha_External_Fixed_Header
36 static boolean nlm_alpha_backend_object_p
38 static boolean nlm_alpha_write_prefix
40 static boolean nlm_alpha_read_reloc
41 PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
42 static boolean nlm_alpha_mangle_relocs
43 PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
44 static boolean nlm_alpha_read_import
45 PARAMS ((bfd *, nlmNAME(symbol_type) *));
46 static boolean nlm_alpha_write_import
47 PARAMS ((bfd *, asection *, arelent *));
48 static boolean nlm_alpha_set_public_section
49 PARAMS ((bfd *, nlmNAME(symbol_type) *));
50 static bfd_vma nlm_alpha_get_public_offset
51 PARAMS ((bfd *, asymbol *));
52 static boolean nlm_alpha_write_external
53 PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
55 /* Alpha NLM's have a prefix header before the standard NLM. This
56 function reads it in, verifies the version, and seeks the bfd to
57 the location before the regular NLM header. */
60 nlm_alpha_backend_object_p (abfd)
63 struct nlm32_alpha_external_prefix_header s;
66 if (bfd_read ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
69 if (bfd_h_get_32 (abfd, s.magic) != NLM32_ALPHA_MAGIC)
72 /* FIXME: Should we check the format number? */
74 /* Skip to the end of the header. */
75 size = bfd_h_get_32 (abfd, s.size);
76 if (bfd_seek (abfd, size, SEEK_SET) != 0)
82 /* Write out the prefix. */
85 nlm_alpha_write_prefix (abfd)
88 struct nlm32_alpha_external_prefix_header s;
90 memset (&s, 0, sizeof s);
91 bfd_h_put_32 (abfd, (bfd_vma) NLM32_ALPHA_MAGIC, s.magic);
92 bfd_h_put_32 (abfd, (bfd_vma) 2, s.format);
93 bfd_h_put_32 (abfd, (bfd_vma) sizeof s, s.size);
94 if (bfd_write ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
99 /* How to process the various reloc types. */
101 static reloc_howto_type nlm32_alpha_howto_table[] =
103 /* Reloc type 0 is ignored by itself. However, it appears after a
104 GPDISP reloc to identify the location where the low order 16 bits
105 of the gp register are loaded. */
106 HOWTO (ALPHA_R_IGNORE, /* type */
108 0, /* size (0 = byte, 1 = short, 2 = long) */
110 false, /* pc_relative */
112 complain_overflow_dont, /* complain_on_overflow */
113 0, /* special_function */
115 false, /* partial_inplace */
118 false), /* pcrel_offset */
120 /* A 32 bit reference to a symbol. */
121 HOWTO (ALPHA_R_REFLONG, /* type */
123 2, /* size (0 = byte, 1 = short, 2 = long) */
125 false, /* pc_relative */
127 complain_overflow_bitfield, /* complain_on_overflow */
128 0, /* special_function */
129 "REFLONG", /* name */
130 true, /* partial_inplace */
131 0xffffffff, /* src_mask */
132 0xffffffff, /* dst_mask */
133 false), /* pcrel_offset */
135 /* A 64 bit reference to a symbol. */
136 HOWTO (ALPHA_R_REFQUAD, /* type */
138 4, /* size (0 = byte, 1 = short, 2 = long) */
140 false, /* pc_relative */
142 complain_overflow_bitfield, /* complain_on_overflow */
143 0, /* special_function */
144 "REFQUAD", /* name */
145 true, /* partial_inplace */
146 0xffffffffffffffff, /* src_mask */
147 0xffffffffffffffff, /* dst_mask */
148 false), /* pcrel_offset */
150 /* A 32 bit GP relative offset. This is just like REFLONG except
151 that when the value is used the value of the gp register will be
153 HOWTO (ALPHA_R_GPREL32, /* type */
155 2, /* size (0 = byte, 1 = short, 2 = long) */
157 false, /* pc_relative */
159 complain_overflow_bitfield, /* complain_on_overflow */
160 0, /* special_function */
161 "GPREL32", /* name */
162 true, /* partial_inplace */
163 0xffffffff, /* src_mask */
164 0xffffffff, /* dst_mask */
165 false), /* pcrel_offset */
167 /* Used for an instruction that refers to memory off the GP
168 register. The offset is 16 bits of the 32 bit instruction. This
169 reloc always seems to be against the .lita section. */
170 HOWTO (ALPHA_R_LITERAL, /* type */
172 2, /* size (0 = byte, 1 = short, 2 = long) */
174 false, /* pc_relative */
176 complain_overflow_signed, /* complain_on_overflow */
177 0, /* special_function */
178 "LITERAL", /* name */
179 true, /* partial_inplace */
180 0xffff, /* src_mask */
181 0xffff, /* dst_mask */
182 false), /* pcrel_offset */
184 /* This reloc only appears immediately following a LITERAL reloc.
185 It identifies a use of the literal. It seems that the linker can
186 use this to eliminate a portion of the .lita section. The symbol
187 index is special: 1 means the literal address is in the base
188 register of a memory format instruction; 2 means the literal
189 address is in the byte offset register of a byte-manipulation
190 instruction; 3 means the literal address is in the target
191 register of a jsr instruction. This does not actually do any
193 HOWTO (ALPHA_R_LITUSE, /* type */
195 2, /* size (0 = byte, 1 = short, 2 = long) */
197 false, /* pc_relative */
199 complain_overflow_dont, /* complain_on_overflow */
200 0, /* special_function */
202 false, /* partial_inplace */
205 false), /* pcrel_offset */
207 /* Load the gp register. This is always used for a ldah instruction
208 which loads the upper 16 bits of the gp register. The next reloc
209 will be an IGNORE reloc which identifies the location of the lda
210 instruction which loads the lower 16 bits. The symbol index of
211 the GPDISP instruction appears to actually be the number of bytes
212 between the ldah and lda instructions. This gives two different
213 ways to determine where the lda instruction is; I don't know why
214 both are used. The value to use for the relocation is the
215 difference between the GP value and the current location; the
216 load will always be done against a register holding the current
218 HOWTO (ALPHA_R_GPDISP, /* type */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
222 true, /* pc_relative */
224 complain_overflow_dont, /* complain_on_overflow */
225 0, /* special_function */
227 true, /* partial_inplace */
228 0xffff, /* src_mask */
229 0xffff, /* dst_mask */
230 true), /* pcrel_offset */
232 /* A 21 bit branch. The native assembler generates these for
233 branches within the text segment, and also fills in the PC
234 relative offset in the instruction. It seems to me that this
235 reloc, unlike the others, is not partial_inplace. */
236 HOWTO (ALPHA_R_BRADDR, /* type */
238 2, /* size (0 = byte, 1 = short, 2 = long) */
240 true, /* pc_relative */
242 complain_overflow_signed, /* complain_on_overflow */
243 0, /* special_function */
245 false, /* partial_inplace */
247 0x1fffff, /* dst_mask */
248 false), /* pcrel_offset */
250 /* A hint for a jump to a register. */
251 HOWTO (ALPHA_R_HINT, /* type */
253 2, /* size (0 = byte, 1 = short, 2 = long) */
255 false, /* pc_relative */
257 complain_overflow_dont, /* complain_on_overflow */
258 0, /* special_function */
260 true, /* partial_inplace */
261 0x3fff, /* src_mask */
262 0x3fff, /* dst_mask */
263 false), /* pcrel_offset */
265 /* 16 bit PC relative offset. */
266 HOWTO (ALPHA_R_SREL16, /* type */
268 1, /* size (0 = byte, 1 = short, 2 = long) */
270 true, /* pc_relative */
272 complain_overflow_signed, /* complain_on_overflow */
273 0, /* special_function */
275 true, /* partial_inplace */
276 0xffff, /* src_mask */
277 0xffff, /* dst_mask */
278 false), /* pcrel_offset */
280 /* 32 bit PC relative offset. */
281 HOWTO (ALPHA_R_SREL32, /* type */
283 2, /* size (0 = byte, 1 = short, 2 = long) */
285 true, /* pc_relative */
287 complain_overflow_signed, /* complain_on_overflow */
288 0, /* special_function */
290 true, /* partial_inplace */
291 0xffffffff, /* src_mask */
292 0xffffffff, /* dst_mask */
293 false), /* pcrel_offset */
295 /* A 64 bit PC relative offset. */
296 HOWTO (ALPHA_R_SREL64, /* type */
298 4, /* size (0 = byte, 1 = short, 2 = long) */
300 true, /* pc_relative */
302 complain_overflow_signed, /* complain_on_overflow */
303 0, /* special_function */
305 true, /* partial_inplace */
306 0xffffffffffffffff, /* src_mask */
307 0xffffffffffffffff, /* dst_mask */
308 false), /* pcrel_offset */
310 /* Push a value on the reloc evaluation stack. */
311 HOWTO (ALPHA_R_OP_PUSH, /* type */
313 0, /* size (0 = byte, 1 = short, 2 = long) */
315 false, /* pc_relative */
317 complain_overflow_dont, /* complain_on_overflow */
318 0, /* special_function */
319 "OP_PUSH", /* name */
320 false, /* partial_inplace */
323 false), /* pcrel_offset */
325 /* Store the value from the stack at the given address. Store it in
326 a bitfield of size r_size starting at bit position r_offset. */
327 HOWTO (ALPHA_R_OP_STORE, /* type */
329 4, /* size (0 = byte, 1 = short, 2 = long) */
331 false, /* pc_relative */
333 complain_overflow_dont, /* complain_on_overflow */
334 0, /* special_function */
335 "OP_STORE", /* name */
336 false, /* partial_inplace */
338 0xffffffffffffffff, /* dst_mask */
339 false), /* pcrel_offset */
341 /* Subtract the reloc address from the value on the top of the
343 HOWTO (ALPHA_R_OP_PSUB, /* type */
345 0, /* size (0 = byte, 1 = short, 2 = long) */
347 false, /* pc_relative */
349 complain_overflow_dont, /* complain_on_overflow */
350 0, /* special_function */
351 "OP_PSUB", /* name */
352 false, /* partial_inplace */
355 false), /* pcrel_offset */
357 /* Shift the value on the top of the relocation stack right by the
359 HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
361 0, /* size (0 = byte, 1 = short, 2 = long) */
363 false, /* pc_relative */
365 complain_overflow_dont, /* complain_on_overflow */
366 0, /* special_function */
367 "OP_PRSHIFT", /* name */
368 false, /* partial_inplace */
371 false), /* pcrel_offset */
373 /* Adjust the GP value for a new range in the object file. */
374 HOWTO (ALPHA_R_GPVALUE, /* type */
376 0, /* size (0 = byte, 1 = short, 2 = long) */
378 false, /* pc_relative */
380 complain_overflow_dont, /* complain_on_overflow */
381 0, /* special_function */
382 "GPVALUE", /* name */
383 false, /* partial_inplace */
386 false) /* pcrel_offset */
389 static reloc_howto_type nlm32_alpha_nw_howto =
390 HOWTO (ALPHA_R_NW_RELOC, /* type */
392 0, /* size (0 = byte, 1 = short, 2 = long) */
394 false, /* pc_relative */
396 complain_overflow_dont, /* complain_on_overflow */
397 0, /* special_function */
398 "NW_RELOC", /* name */
399 false, /* partial_inplace */
402 false); /* pcrel_offset */
404 /* Read an Alpha NLM reloc. This routine keeps some static data which
405 it uses when handling local relocs. This only works correctly
406 because all the local relocs are read at once. */
409 nlm_alpha_read_reloc (abfd, sym, secp, rel)
411 nlmNAME(symbol_type) *sym;
415 static bfd_vma gp_value;
416 static bfd_vma lita_address;
417 struct nlm32_alpha_external_reloc ext;
420 int r_type, r_extern, r_offset, r_size;
421 asection *code_sec, *data_sec;
423 /* Read the reloc from the file. */
424 if (bfd_read (&ext, sizeof ext, 1, abfd) != sizeof ext)
427 /* Swap in the reloc information. */
428 r_vaddr = bfd_h_get_64 (abfd, (bfd_byte *) ext.r_vaddr);
429 r_symndx = bfd_h_get_32 (abfd, (bfd_byte *) ext.r_symndx);
431 BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false);
433 r_type = ((ext.r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
434 >> RELOC_BITS0_TYPE_SH_LITTLE);
435 r_extern = (ext.r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
436 r_offset = ((ext.r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
437 >> RELOC_BITS1_OFFSET_SH_LITTLE);
438 /* Ignore the reserved bits. */
439 r_size = ((ext.r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
440 >> RELOC_BITS3_SIZE_SH_LITTLE);
442 /* Fill in the BFD arelent structure. */
443 code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
444 data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
447 /* External relocations are only used for imports. */
448 BFD_ASSERT (sym != NULL);
449 /* We don't need to set sym_ptr_ptr for this case. It is set in
450 nlm_canonicalize_reloc. */
451 rel->sym_ptr_ptr = NULL;
456 /* Internal relocations are only used for local relocation
457 fixups. If they are not NW_RELOC or GPDISP or IGNORE, they
458 must be against .text or .data. */
459 BFD_ASSERT (r_type == ALPHA_R_NW_RELOC || sym == NULL);
460 if (r_type == ALPHA_R_NW_RELOC
461 || r_type == ALPHA_R_GPDISP
462 || r_type == ALPHA_R_IGNORE)
464 rel->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
467 else if (r_symndx == ALPHA_RELOC_SECTION_TEXT)
469 rel->sym_ptr_ptr = code_sec->symbol_ptr_ptr;
470 BFD_ASSERT (bfd_get_section_vma (abfd, code_sec) == 0);
473 else if (r_symndx == ALPHA_RELOC_SECTION_DATA)
475 rel->sym_ptr_ptr = data_sec->symbol_ptr_ptr;
476 rel->addend = - bfd_get_section_vma (abfd, data_sec);
481 rel->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
486 /* We use the address to determine whether the reloc is in the .text
487 or .data section. R_NW_RELOC relocs don't really have a section,
488 so we put them in .text. */
489 if (r_type == ALPHA_R_NW_RELOC
490 || r_vaddr < bfd_section_size (abfd, code_sec))
493 rel->address = r_vaddr;
498 rel->address = r_vaddr - bfd_section_size (abfd, code_sec);
501 /* We must adjust the addend based on the type. */
502 BFD_ASSERT ((r_type >= 0 && r_type <= ALPHA_R_GPVALUE)
503 || r_type == ALPHA_R_NW_RELOC);
511 /* The PC relative relocs do not seem to use the section VMA as
512 a negative addend. */
516 case ALPHA_R_GPREL32:
517 /* Copy the gp value for this object file into the addend, to
518 ensure that we are not confused by the linker. */
520 rel->addend += gp_value;
523 case ALPHA_R_LITERAL:
524 BFD_ASSERT (! r_extern);
525 rel->addend += lita_address;
530 /* The LITUSE and GPDISP relocs do not use a symbol, or an
531 addend, but they do use a special code. Put this code in the
533 rel->addend = r_symndx;
534 rel->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
537 case ALPHA_R_OP_STORE:
538 /* The STORE reloc needs the size and offset fields. We store
539 them in the addend. */
540 BFD_ASSERT (r_offset < 256 && r_size < 256);
541 rel->addend = (r_offset << 8) + r_size;
544 case ALPHA_R_OP_PUSH:
545 case ALPHA_R_OP_PSUB:
546 case ALPHA_R_OP_PRSHIFT:
547 /* The PUSH, PSUB and PRSHIFT relocs do not actually use an
548 address. I believe that the address supplied is really an
550 rel->addend = r_vaddr;
553 case ALPHA_R_GPVALUE:
554 /* Record the new gp value. */
555 gp_value += r_symndx;
556 rel->addend = gp_value;
560 /* If the type is ALPHA_R_IGNORE, make sure this is a reference
561 to the absolute section so that the reloc is ignored. For
562 some reason the address of this reloc type is not adjusted by
563 the section vma. We record the gp value for this object file
564 here, for convenience when doing the GPDISP relocation. */
565 rel->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
566 rel->address = r_vaddr;
567 rel->addend = gp_value;
570 case ALPHA_R_NW_RELOC:
571 /* If this is SETGP, we set the addend to 0. Otherwise we set
572 the addend to the size of the .lita section (this is
573 r_symndx) plus 1. We have already set the address of the
575 if (r_size == ALPHA_R_NW_RELOC_SETGP)
580 else if (r_size == ALPHA_R_NW_RELOC_LITA)
582 lita_address = r_vaddr;
583 rel->addend = r_symndx + 1;
587 rel->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
594 if (r_type == ALPHA_R_NW_RELOC)
595 rel->howto = &nlm32_alpha_nw_howto;
597 rel->howto = &nlm32_alpha_howto_table[r_type];
602 /* Mangle Alpha NLM relocs for output. */
605 nlm_alpha_mangle_relocs (abfd, sec, data, offset, count)
615 /* Read an ALPHA NLM import record */
618 nlm_alpha_read_import (abfd, sym)
620 nlmNAME(symbol_type) *sym;
622 struct nlm_relent *nlm_relocs; /* relocation records for symbol */
623 bfd_size_type rcount; /* number of relocs */
624 bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* temporary 32-bit value */
625 unsigned char symlength; /* length of symbol name */
627 if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
628 != sizeof (symlength))
630 sym -> symbol.the_bfd = abfd;
631 sym -> symbol.name = bfd_alloc (abfd, symlength + 1);
632 if (!sym -> symbol.name)
634 bfd_set_error (bfd_error_no_memory);
637 if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd)
640 sym -> symbol.flags = 0;
641 sym -> symbol.value = 0;
642 sym -> symbol.section = &bfd_und_section;
643 if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp))
645 rcount = bfd_h_get_32 (abfd, temp);
646 nlm_relocs = ((struct nlm_relent *)
647 bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)));
650 bfd_set_error (bfd_error_no_memory);
653 sym -> relocs = nlm_relocs;
655 while (sym -> rcnt < rcount)
659 if (nlm_alpha_read_reloc (abfd, sym, §ion,
660 &nlm_relocs -> reloc)
663 nlm_relocs -> section = section;
671 /* Write an Alpha NLM reloc. */
674 nlm_alpha_write_import (abfd, sec, rel)
682 int r_type, r_extern, r_offset, r_size;
683 struct nlm32_alpha_external_reloc ext;
685 sym = *rel->sym_ptr_ptr;
687 /* Get values for the relocation fields. */
688 r_type = rel->howto->type;
689 if (r_type != ALPHA_R_NW_RELOC)
691 r_vaddr = bfd_get_section_vma (abfd, sec) + rel->address;
692 if ((sec->flags & SEC_CODE) == 0)
693 r_vaddr += bfd_section_size (abfd,
694 bfd_get_section_by_name (abfd,
696 if (bfd_get_section (sym) == &bfd_und_section)
704 if (bfd_get_section_flags (abfd, bfd_get_section (sym)) & SEC_CODE)
705 r_symndx = ALPHA_RELOC_SECTION_TEXT;
707 r_symndx = ALPHA_RELOC_SECTION_DATA;
716 r_symndx = rel->addend;
719 case ALPHA_R_OP_STORE:
720 r_size = rel->addend & 0xff;
721 r_offset = (rel->addend >> 8) & 0xff;
724 case ALPHA_R_OP_PUSH:
725 case ALPHA_R_OP_PSUB:
726 case ALPHA_R_OP_PRSHIFT:
727 r_vaddr = rel->addend;
731 r_vaddr = rel->address;
740 /* r_type == ALPHA_R_NW_RELOC */
741 r_vaddr = rel->address;
742 if (rel->addend == 0)
745 r_size = ALPHA_R_NW_RELOC_SETGP;
749 r_symndx = rel->addend - 1;
750 r_size = ALPHA_R_NW_RELOC_LITA;
756 /* Swap out the relocation fields. */
757 bfd_h_put_64 (abfd, r_vaddr, (bfd_byte *) ext.r_vaddr);
758 bfd_h_put_32 (abfd, r_symndx, (bfd_byte *) ext.r_symndx);
760 BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false);
762 ext.r_bits[0] = ((r_type << RELOC_BITS0_TYPE_SH_LITTLE)
763 & RELOC_BITS0_TYPE_LITTLE);
764 ext.r_bits[1] = ((r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0)
765 | ((r_offset << RELOC_BITS1_OFFSET_SH_LITTLE)
766 & RELOC_BITS1_OFFSET_LITTLE));
768 ext.r_bits[3] = ((r_size << RELOC_BITS3_SIZE_SH_LITTLE)
769 & RELOC_BITS3_SIZE_LITTLE);
771 /* Write out the relocation. */
772 if (bfd_write (&ext, sizeof ext, 1, abfd) != sizeof ext)
778 /* Alpha NetWare does not use the high bit to determine whether a
779 public symbol is in the code segment or the data segment. Instead,
780 it just uses the address. The set_public_section and
781 get_public_offset routines override the default code which uses the
784 /* Set the section for a public symbol. */
787 nlm_alpha_set_public_section (abfd, sym)
789 nlmNAME(symbol_type) *sym;
791 asection *code_sec, *data_sec;
793 code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
794 data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
795 if (sym->symbol.value < bfd_section_size (abfd, code_sec))
797 sym->symbol.section = code_sec;
798 sym->symbol.flags |= BSF_FUNCTION;
802 sym->symbol.section = data_sec;
803 sym->symbol.value -= bfd_section_size (abfd, code_sec);
804 /* The data segment had better be aligned. */
805 BFD_ASSERT ((bfd_section_size (abfd, code_sec) & 0xf) == 0);
810 /* Get the offset to write out for a public symbol. */
813 nlm_alpha_get_public_offset (abfd, sym)
817 return bfd_asymbol_value (sym);
820 /* Write an Alpha NLM external symbol. */
823 nlm_alpha_write_external (abfd, count, sym, relocs)
827 struct reloc_and_sec *relocs;
831 unsigned char temp[NLM_TARGET_LONG_SIZE];
834 len = strlen (sym->name);
835 if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
836 || bfd_write (sym->name, len, 1, abfd) != len)
839 bfd_put_32 (abfd, count + 2, temp);
840 if (bfd_write (temp, sizeof (temp), 1, abfd) != sizeof (temp))
843 /* The first two relocs for each external symbol are the .lita
844 address and the GP value. */
845 r.sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
846 r.howto = &nlm32_alpha_nw_howto;
848 r.address = nlm_alpha_backend_data (abfd)->lita_address;
849 r.addend = nlm_alpha_backend_data (abfd)->lita_size + 1;
850 if (nlm_alpha_write_import (abfd, (asection *) NULL, &r) == false)
853 r.address = nlm_alpha_backend_data (abfd)->gp;
855 if (nlm_alpha_write_import (abfd, (asection *) NULL, &r) == false)
858 for (i = 0; i < count; i++)
860 if (nlm_alpha_write_import (abfd, relocs[i].sec,
861 relocs[i].rel) == false)
870 static const struct nlm_backend_data nlm32_alpha_backend =
872 "NetWare Alpha Module \032",
873 sizeof (Nlm32_alpha_External_Fixed_Header),
874 sizeof (struct nlm32_alpha_external_prefix_header),
877 true, /* no uninitialized data permitted by Alpha NetWare. */
878 nlm_alpha_backend_object_p,
879 nlm_alpha_write_prefix,
880 nlm_alpha_read_reloc,
881 nlm_alpha_mangle_relocs,
882 nlm_alpha_read_import,
883 nlm_alpha_write_import,
884 nlm_alpha_set_public_section,
885 nlm_alpha_get_public_offset,
886 nlm_swap_fixed_header_in,
887 nlm_swap_fixed_header_out,
888 nlm_alpha_write_external,
889 0, /* write_export */
892 #define TARGET_LITTLE_NAME "nlm32-alpha"
893 #define TARGET_LITTLE_SYM nlmNAME(alpha_vec)
894 #define TARGET_BACKEND_DATA &nlm32_alpha_backend
896 #include "nlm-target.h"