1 /* Support for 32-bit SPARC NLM (NetWare Loadable Module)
2 Copyright (C) 1993, 1994, 1995, 1999 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 #include "nlm/sparc32-ext.h"
27 #define Nlm_External_Fixed_Header Nlm32_sparc_External_Fixed_Header
31 static boolean nlm_sparc_read_reloc
32 PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
33 static boolean nlm_sparc_write_reloc
34 PARAMS ((bfd *, asection *, arelent *));
35 static boolean nlm_sparc_mangle_relocs
36 PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
37 static boolean nlm_sparc_read_import
38 PARAMS ((bfd *, nlmNAME(symbol_type) *));
39 static boolean nlm_sparc_write_import
40 PARAMS ((bfd *, asection *, arelent *));
41 static boolean nlm_sparc_write_external
42 PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
47 R_SPARC_8, R_SPARC_16, R_SPARC_32,
48 R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32,
49 R_SPARC_WDISP30, R_SPARC_WDISP22,
50 R_SPARC_HI22, R_SPARC_22,
51 R_SPARC_13, R_SPARC_LO10,
52 R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22,
53 R_SPARC_PC10, R_SPARC_PC22,
56 R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT,
63 static CONST char *CONST reloc_type_names[] =
66 "R_SPARC_8", "R_SPARC_16", "R_SPARC_32",
67 "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32",
68 "R_SPARC_WDISP30", "R_SPARC_WDISP22",
69 "R_SPARC_HI22", "R_SPARC_22",
70 "R_SPARC_13", "R_SPARC_LO10",
71 "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22",
72 "R_SPARC_PC10", "R_SPARC_PC22",
75 "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT",
81 static reloc_howto_type nlm32_sparc_howto_table[] =
83 HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, 0,"R_SPARC_NONE", false,0,0x00000000,true),
84 HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,0,"R_SPARC_8", false,0,0x000000ff,true),
85 HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,0,"R_SPARC_16", false,0,0x0000ffff,true),
86 HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,0,"R_SPARC_32", false,0,0xffffffff,true),
87 HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP8", false,0,0x000000ff,true),
88 HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP16", false,0,0x0000ffff,true),
89 HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP32", false,0,0x00ffffff,true),
90 HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, 0,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
91 HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, 0,"R_SPARC_WDISP22", false,0,0x003fffff,true),
92 HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, 0,"R_SPARC_HI22", false,0,0x003fffff,true),
93 HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_22", false,0,0x003fffff,true),
94 HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_13", false,0,0x00001fff,true),
95 HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, 0,"R_SPARC_LO10", false,0,0x000003ff,true),
96 HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT10", false,0,0x000003ff,true),
97 HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT13", false,0,0x00001fff,true),
98 HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT22", false,0,0x003fffff,true),
99 HOWTO(R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_PC10", false,0,0x000003ff,true),
100 HOWTO(R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_PC22", false,0,0x003fffff,true),
101 HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_WPLT30", false,0,0x00000000,true),
102 HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_COPY", false,0,0x00000000,true),
103 HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
104 HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
105 HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_RELATIVE",false,0,0x00000000,true),
106 HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_UA32", false,0,0x00000000,true),
109 /* Read a NetWare sparc reloc. */
111 struct nlm32_sparc_reloc_ext {
112 unsigned char offset[4];
113 unsigned char addend[4];
114 unsigned char type[1];
115 unsigned char pad1[3];
119 nlm_sparc_read_reloc (abfd, sym, secp, rel)
121 nlmNAME(symbol_type) *sym ATTRIBUTE_UNUSED;
128 struct nlm32_sparc_reloc_ext tmp_reloc;
129 asection *code_sec, *data_sec;
131 if (bfd_read (&tmp_reloc, 12, 1, abfd) != 12)
134 code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
135 data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
139 val = bfd_get_32 (abfd, tmp_reloc.offset);
140 addend = bfd_get_32 (abfd, tmp_reloc.addend);
141 type = bfd_get_8 (abfd, tmp_reloc.type);
144 rel->addend = addend;
148 index < sizeof(nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
150 if (nlm32_sparc_howto_table[index].type == type) {
151 rel->howto = &nlm32_sparc_howto_table[index];
156 fprintf (stderr, "%s: address = %08lx, addend = %08lx, type = %d, howto = %08lx\n",
157 __FUNCTION__, rel->address, rel->addend, type, rel->howto);
163 /* Write a NetWare sparc reloc. */
166 nlm_sparc_write_reloc (abfd, sec, rel)
172 struct nlm32_sparc_reloc_ext tmp_reloc;
175 reloc_howto_type *tmp;
179 index < sizeof (nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
181 tmp = &nlm32_sparc_howto_table[index];
183 if (tmp->rightshift == rel->howto->rightshift
184 && tmp->size == rel->howto->size
185 && tmp->bitsize == rel->howto->bitsize
186 && tmp->pc_relative == rel->howto->pc_relative
187 && tmp->bitpos == rel->howto->bitpos
188 && tmp->src_mask == rel->howto->src_mask
189 && tmp->dst_mask == rel->howto->dst_mask) {
198 * Netware wants a list of relocs for each address.
206 /* The value we write out is the offset into the appropriate
207 segment. This offset is the section vma, adjusted by the vma of
208 the lowest section in that segment, plus the address of the
211 val = bfd_get_section_vma (abfd, (*rel->sym_ptr_ptr)->section) + rel->address;
213 val = bfd_get_section_vma (abfd, sec) + rel->address;
217 fprintf (stderr, "%s: val = %08lx, addend = %08lx, type = %d\n",
218 __FUNCTION__, val, rel->addend, rel->howto->type);
220 bfd_put_32 (abfd, val, tmp_reloc.offset);
221 bfd_put_32 (abfd, rel->addend, tmp_reloc.addend);
222 bfd_put_8 (abfd, (short)(rel->howto->type), tmp_reloc.type);
224 if (bfd_write (&tmp_reloc, 12, 1, abfd) != 12)
230 /* Mangle relocs for SPARC NetWare. We can just use the standard
234 nlm_sparc_mangle_relocs (abfd, sec, data, offset, count)
235 bfd *abfd ATTRIBUTE_UNUSED;
236 asection *sec ATTRIBUTE_UNUSED;
237 PTR data ATTRIBUTE_UNUSED;
238 bfd_vma offset ATTRIBUTE_UNUSED;
239 bfd_size_type count ATTRIBUTE_UNUSED;
244 /* Read a NetWare sparc import record */
246 nlm_sparc_read_import (abfd, sym)
248 nlmNAME(symbol_type) *sym;
250 struct nlm_relent *nlm_relocs; /* relocation records for symbol */
251 bfd_size_type rcount; /* number of relocs */
252 bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* temporary 32-bit value */
253 unsigned char symlength; /* length of symbol name */
257 * First, read in the number of relocation
258 * entries for this symbol
260 if (bfd_read ((PTR) temp, 4, 1, abfd) != 4)
263 rcount = bfd_get_32 (abfd, temp);
266 * Next, read in the length of the symbol
269 if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
270 != sizeof (symlength))
272 sym -> symbol.the_bfd = abfd;
273 name = bfd_alloc (abfd, symlength + 1);
278 * Then read in the symbol
281 if (bfd_read (name, symlength, 1, abfd) != symlength)
283 name[symlength] = '\0';
284 sym -> symbol.name = name;
285 sym -> symbol.flags = 0;
286 sym -> symbol.value = 0;
287 sym -> symbol.section = bfd_und_section_ptr;
290 * Next, start reading in the relocs.
293 nlm_relocs = ((struct nlm_relent *)
294 bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)));
297 sym -> relocs = nlm_relocs;
299 while (sym -> rcnt < rcount)
303 if (nlm_sparc_read_reloc (abfd, sym, §ion,
304 &nlm_relocs -> reloc)
307 nlm_relocs -> section = section;
315 nlm_sparc_write_import (abfd, sec, rel)
321 asection *code, *data, *bss, *symsec;
324 code = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
325 data = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
326 bss = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
327 symsec = (*rel->sym_ptr_ptr)->section;
329 if (symsec == code) {
331 } else if (symsec == data) {
332 base = bfd_section_size (abfd, code);
333 } else if (symsec == bss) {
334 base = bfd_section_size (abfd, code) + bfd_section_size (abfd, data);
339 fprintf (stderr, "%s: <%x, 1>\n\t",
340 __FUNCTION__, base + (*rel->sym_ptr_ptr)->value);
342 bfd_put_32 (abfd, base + (*rel->sym_ptr_ptr)->value, temp);
343 if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
345 bfd_put_32 (abfd, 1, temp);
346 if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
348 if (nlm_sparc_write_reloc (abfd, sec, rel) == false)
353 /* Write out an external reference. */
356 nlm_sparc_write_external (abfd, count, sym, relocs)
360 struct reloc_and_sec *relocs;
364 unsigned char temp[NLM_TARGET_LONG_SIZE];
366 bfd_put_32 (abfd, count, temp);
367 if (bfd_write (temp, sizeof(temp), 1, abfd) != sizeof (temp))
370 len = strlen (sym->name);
371 if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
372 || bfd_write (sym->name, len, 1, abfd) != len)
375 for (i = 0; i < count; i++)
377 if (nlm_sparc_write_reloc (abfd, relocs[i].sec,
378 relocs[i].rel) == false)
386 nlm_sparc_write_export (abfd, sym, value)
395 fprintf (stderr, "%s: <%x, %d, %s>\n",
396 __FUNCTION__, value, strlen (sym->name), sym->name);
398 bfd_put_32 (abfd, value, temp);
399 len = strlen (sym->name);
401 if (bfd_write (temp, 4, 1, abfd) != 4
402 || bfd_write (&len, 1, 1, abfd) != 1
403 || bfd_write (sym->name, len, 1, abfd) != len)
409 #undef nlm_swap_fixed_header_in
410 #undef nlm_swap_fixed_header_out
414 static const struct nlm_backend_data nlm32_sparc_backend =
416 "NetWare SPARC Module \032",
417 sizeof (Nlm32_sparc_External_Fixed_Header),
418 0, /* optional_prefix_size */
422 0, /* backend_object_p */
423 0, /* write_prefix_func */
424 nlm_sparc_read_reloc,
425 nlm_sparc_mangle_relocs,
426 nlm_sparc_read_import,
427 nlm_sparc_write_import,
428 0, /* set_public_section */
429 0, /* get_public_offset */
430 nlm_swap_fixed_header_in,
431 nlm_swap_fixed_header_out,
432 nlm_sparc_write_external,
433 nlm_sparc_write_export
436 #define TARGET_BIG_NAME "nlm32-sparc"
437 #define TARGET_BIG_SYM nlmNAME(sparc_vec)
438 #define TARGET_BACKEND_DATA &nlm32_sparc_backend
440 #include "nlm-target.h"