1*3d8817e4Smiod /* D30V-specific support for 32-bit ELF
2*3d8817e4Smiod Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3*3d8817e4Smiod Free Software Foundation, Inc.
4*3d8817e4Smiod Contributed by Martin Hunt (hunt@cygnus.com).
5*3d8817e4Smiod
6*3d8817e4Smiod This file is part of BFD, the Binary File Descriptor library.
7*3d8817e4Smiod
8*3d8817e4Smiod This program is free software; you can redistribute it and/or modify
9*3d8817e4Smiod it under the terms of the GNU General Public License as published by
10*3d8817e4Smiod the Free Software Foundation; either version 2 of the License, or
11*3d8817e4Smiod (at your option) any later version.
12*3d8817e4Smiod
13*3d8817e4Smiod This program is distributed in the hope that it will be useful,
14*3d8817e4Smiod but WITHOUT ANY WARRANTY; without even the implied warranty of
15*3d8817e4Smiod MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16*3d8817e4Smiod GNU General Public License for more details.
17*3d8817e4Smiod
18*3d8817e4Smiod You should have received a copy of the GNU General Public License
19*3d8817e4Smiod along with this program; if not, write to the Free Software
20*3d8817e4Smiod Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21*3d8817e4Smiod MA 02110-1301, USA. */
22*3d8817e4Smiod
23*3d8817e4Smiod #include "bfd.h"
24*3d8817e4Smiod #include "sysdep.h"
25*3d8817e4Smiod #include "libbfd.h"
26*3d8817e4Smiod #include "elf-bfd.h"
27*3d8817e4Smiod #include "elf/d30v.h"
28*3d8817e4Smiod
29*3d8817e4Smiod #define MAX32 ((bfd_signed_vma) 0x7fffffff)
30*3d8817e4Smiod #define MIN32 (- MAX32 - 1)
31*3d8817e4Smiod
32*3d8817e4Smiod static bfd_reloc_status_type
bfd_elf_d30v_reloc(bfd * abfd,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message)33*3d8817e4Smiod bfd_elf_d30v_reloc (bfd *abfd,
34*3d8817e4Smiod arelent *reloc_entry,
35*3d8817e4Smiod asymbol *symbol,
36*3d8817e4Smiod void * data,
37*3d8817e4Smiod asection *input_section,
38*3d8817e4Smiod bfd *output_bfd,
39*3d8817e4Smiod char **error_message)
40*3d8817e4Smiod {
41*3d8817e4Smiod bfd_signed_vma relocation;
42*3d8817e4Smiod bfd_vma in1, in2, num;
43*3d8817e4Smiod bfd_vma tmp_addr = 0;
44*3d8817e4Smiod bfd_reloc_status_type r;
45*3d8817e4Smiod asection *reloc_target_output_section;
46*3d8817e4Smiod bfd_size_type addr = reloc_entry->address;
47*3d8817e4Smiod bfd_reloc_status_type flag = bfd_reloc_ok;
48*3d8817e4Smiod bfd_vma output_base = 0;
49*3d8817e4Smiod reloc_howto_type *howto = reloc_entry->howto;
50*3d8817e4Smiod int make_absolute = 0;
51*3d8817e4Smiod
52*3d8817e4Smiod if (output_bfd != NULL)
53*3d8817e4Smiod {
54*3d8817e4Smiod /* Partial linking -- do nothing. */
55*3d8817e4Smiod reloc_entry->address += input_section->output_offset;
56*3d8817e4Smiod return bfd_reloc_ok;
57*3d8817e4Smiod }
58*3d8817e4Smiod
59*3d8817e4Smiod r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
60*3d8817e4Smiod input_section, output_bfd, error_message);
61*3d8817e4Smiod if (r != bfd_reloc_continue)
62*3d8817e4Smiod return r;
63*3d8817e4Smiod
64*3d8817e4Smiod /* A hacked-up version of bfd_perform_reloc() follows. */
65*3d8817e4Smiod if (bfd_is_und_section (symbol->section)
66*3d8817e4Smiod && (symbol->flags & BSF_WEAK) == 0
67*3d8817e4Smiod && output_bfd == NULL)
68*3d8817e4Smiod flag = bfd_reloc_undefined;
69*3d8817e4Smiod
70*3d8817e4Smiod /* Is the address of the relocation really within the section? */
71*3d8817e4Smiod if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
72*3d8817e4Smiod return bfd_reloc_outofrange;
73*3d8817e4Smiod
74*3d8817e4Smiod /* Work out which section the relocation is targeted at and the
75*3d8817e4Smiod initial relocation command value. */
76*3d8817e4Smiod
77*3d8817e4Smiod /* Get symbol value. (Common symbols are special.) */
78*3d8817e4Smiod if (bfd_is_com_section (symbol->section))
79*3d8817e4Smiod relocation = 0;
80*3d8817e4Smiod else
81*3d8817e4Smiod relocation = symbol->value;
82*3d8817e4Smiod
83*3d8817e4Smiod reloc_target_output_section = symbol->section->output_section;
84*3d8817e4Smiod
85*3d8817e4Smiod /* Convert input-section-relative symbol value to absolute. */
86*3d8817e4Smiod output_base = reloc_target_output_section->vma;
87*3d8817e4Smiod relocation += output_base + symbol->section->output_offset;
88*3d8817e4Smiod
89*3d8817e4Smiod /* Add in supplied addend. */
90*3d8817e4Smiod relocation += reloc_entry->addend;
91*3d8817e4Smiod
92*3d8817e4Smiod /* Here the variable relocation holds the final address of the
93*3d8817e4Smiod symbol we are relocating against, plus any addend. */
94*3d8817e4Smiod if (howto->pc_relative)
95*3d8817e4Smiod {
96*3d8817e4Smiod tmp_addr = input_section->output_section->vma
97*3d8817e4Smiod + input_section->output_offset
98*3d8817e4Smiod + reloc_entry->address;
99*3d8817e4Smiod relocation -= tmp_addr;
100*3d8817e4Smiod }
101*3d8817e4Smiod
102*3d8817e4Smiod in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);
103*3d8817e4Smiod in2 = bfd_get_32 (abfd, (bfd_byte *) data + addr + 4);
104*3d8817e4Smiod
105*3d8817e4Smiod /* Extract the addend. */
106*3d8817e4Smiod num = ((in2 & 0x3FFFF)
107*3d8817e4Smiod | ((in2 & 0xFF00000) >> 2)
108*3d8817e4Smiod | ((in1 & 0x3F) << 26));
109*3d8817e4Smiod in1 &= 0xFFFFFFC0;
110*3d8817e4Smiod in2 = 0x80000000;
111*3d8817e4Smiod
112*3d8817e4Smiod relocation += num;
113*3d8817e4Smiod
114*3d8817e4Smiod if (howto->pc_relative && howto->bitsize == 32)
115*3d8817e4Smiod {
116*3d8817e4Smiod /* The D30V has a PC that doesn't wrap and PC-relative jumps are
117*3d8817e4Smiod signed, so a PC-relative jump can't be more than +/- 2^31 bytes.
118*3d8817e4Smiod If one exceeds this, change it to an absolute jump. */
119*3d8817e4Smiod if (relocation > MAX32 || relocation < MIN32)
120*3d8817e4Smiod {
121*3d8817e4Smiod relocation = (relocation + tmp_addr) & 0xffffffff;
122*3d8817e4Smiod make_absolute = 1;
123*3d8817e4Smiod }
124*3d8817e4Smiod }
125*3d8817e4Smiod
126*3d8817e4Smiod in1 |= (relocation >> 26) & 0x3F; /* Top 6 bits. */
127*3d8817e4Smiod in2 |= ((relocation & 0x03FC0000) << 2); /* Next 8 bits. */
128*3d8817e4Smiod in2 |= relocation & 0x0003FFFF; /* Bottom 18 bits. */
129*3d8817e4Smiod
130*3d8817e4Smiod /* Change a PC-relative instruction to its
131*3d8817e4Smiod absolute equivalent with this simple hack. */
132*3d8817e4Smiod if (make_absolute)
133*3d8817e4Smiod in1 |= 0x00100000;
134*3d8817e4Smiod
135*3d8817e4Smiod bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);
136*3d8817e4Smiod bfd_put_32 (abfd, in2, (bfd_byte *) data + addr + 4);
137*3d8817e4Smiod
138*3d8817e4Smiod return flag;
139*3d8817e4Smiod }
140*3d8817e4Smiod
141*3d8817e4Smiod static bfd_reloc_status_type
bfd_elf_d30v_reloc_21(bfd * abfd,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message)142*3d8817e4Smiod bfd_elf_d30v_reloc_21 (bfd *abfd,
143*3d8817e4Smiod arelent *reloc_entry,
144*3d8817e4Smiod asymbol *symbol,
145*3d8817e4Smiod void * data,
146*3d8817e4Smiod asection *input_section,
147*3d8817e4Smiod bfd *output_bfd,
148*3d8817e4Smiod char **error_message)
149*3d8817e4Smiod {
150*3d8817e4Smiod bfd_vma relocation;
151*3d8817e4Smiod bfd_vma in1, num;
152*3d8817e4Smiod bfd_reloc_status_type r;
153*3d8817e4Smiod asection *reloc_target_output_section;
154*3d8817e4Smiod bfd_size_type addr = reloc_entry->address;
155*3d8817e4Smiod bfd_reloc_status_type flag = bfd_reloc_ok;
156*3d8817e4Smiod bfd_vma output_base = 0;
157*3d8817e4Smiod reloc_howto_type *howto = reloc_entry->howto;
158*3d8817e4Smiod int mask, max;
159*3d8817e4Smiod
160*3d8817e4Smiod if (output_bfd != NULL)
161*3d8817e4Smiod {
162*3d8817e4Smiod /* Partial linking -- do nothing. */
163*3d8817e4Smiod reloc_entry->address += input_section->output_offset;
164*3d8817e4Smiod return bfd_reloc_ok;
165*3d8817e4Smiod }
166*3d8817e4Smiod
167*3d8817e4Smiod r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
168*3d8817e4Smiod input_section, output_bfd, error_message);
169*3d8817e4Smiod if (r != bfd_reloc_continue)
170*3d8817e4Smiod return r;
171*3d8817e4Smiod
172*3d8817e4Smiod /* A hacked-up version of bfd_perform_reloc() follows. */
173*3d8817e4Smiod if (bfd_is_und_section (symbol->section)
174*3d8817e4Smiod && (symbol->flags & BSF_WEAK) == 0
175*3d8817e4Smiod && output_bfd == NULL)
176*3d8817e4Smiod flag = bfd_reloc_undefined;
177*3d8817e4Smiod
178*3d8817e4Smiod /* Is the address of the relocation really within the section? */
179*3d8817e4Smiod if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
180*3d8817e4Smiod return bfd_reloc_outofrange;
181*3d8817e4Smiod
182*3d8817e4Smiod /* Work out which section the relocation is targeted at and the
183*3d8817e4Smiod initial relocation command value. */
184*3d8817e4Smiod
185*3d8817e4Smiod /* Get symbol value. (Common symbols are special.) */
186*3d8817e4Smiod if (bfd_is_com_section (symbol->section))
187*3d8817e4Smiod relocation = 0;
188*3d8817e4Smiod else
189*3d8817e4Smiod relocation = symbol->value;
190*3d8817e4Smiod
191*3d8817e4Smiod reloc_target_output_section = symbol->section->output_section;
192*3d8817e4Smiod
193*3d8817e4Smiod /* Convert input-section-relative symbol value to absolute. */
194*3d8817e4Smiod output_base = reloc_target_output_section->vma;
195*3d8817e4Smiod relocation += output_base + symbol->section->output_offset;
196*3d8817e4Smiod
197*3d8817e4Smiod /* Add in supplied addend. */
198*3d8817e4Smiod relocation += reloc_entry->addend;
199*3d8817e4Smiod
200*3d8817e4Smiod /* Here the variable relocation holds the final address of the
201*3d8817e4Smiod symbol we are relocating against, plus any addend. */
202*3d8817e4Smiod
203*3d8817e4Smiod if (howto->pc_relative)
204*3d8817e4Smiod {
205*3d8817e4Smiod relocation -= (input_section->output_section->vma
206*3d8817e4Smiod + input_section->output_offset);
207*3d8817e4Smiod if (howto->pcrel_offset)
208*3d8817e4Smiod relocation -= reloc_entry->address;
209*3d8817e4Smiod }
210*3d8817e4Smiod
211*3d8817e4Smiod in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);
212*3d8817e4Smiod
213*3d8817e4Smiod mask = (1 << howto->bitsize) - 1;
214*3d8817e4Smiod if (howto->bitsize == 6)
215*3d8817e4Smiod mask <<= 12;
216*3d8817e4Smiod max = (1 << (howto->bitsize + 2)) - 1;
217*3d8817e4Smiod
218*3d8817e4Smiod /* Extract the addend. */
219*3d8817e4Smiod num = in1 & mask; /* 18 bits. */
220*3d8817e4Smiod if (howto->bitsize == 6)
221*3d8817e4Smiod num >>= 12;
222*3d8817e4Smiod num <<= 3; /* shift left 3. */
223*3d8817e4Smiod in1 &= ~mask; /* Mask out addend. */
224*3d8817e4Smiod
225*3d8817e4Smiod relocation += num;
226*3d8817e4Smiod if (howto->type == R_D30V_21_PCREL_R
227*3d8817e4Smiod || howto->type == R_D30V_15_PCREL_R
228*3d8817e4Smiod || howto->type == R_D30V_9_PCREL_R)
229*3d8817e4Smiod relocation += 4;
230*3d8817e4Smiod
231*3d8817e4Smiod if ((int) relocation < 0)
232*3d8817e4Smiod {
233*3d8817e4Smiod if (~ (int) relocation > max)
234*3d8817e4Smiod flag = bfd_reloc_overflow;
235*3d8817e4Smiod }
236*3d8817e4Smiod else
237*3d8817e4Smiod {
238*3d8817e4Smiod if ((int) relocation > max)
239*3d8817e4Smiod flag = bfd_reloc_overflow;
240*3d8817e4Smiod }
241*3d8817e4Smiod
242*3d8817e4Smiod relocation >>= 3;
243*3d8817e4Smiod if (howto->bitsize == 6)
244*3d8817e4Smiod in1 |= ((relocation & (mask >> 12)) << 12);
245*3d8817e4Smiod else
246*3d8817e4Smiod in1 |= relocation & mask;
247*3d8817e4Smiod
248*3d8817e4Smiod bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);
249*3d8817e4Smiod
250*3d8817e4Smiod return flag;
251*3d8817e4Smiod }
252*3d8817e4Smiod
253*3d8817e4Smiod static reloc_howto_type elf_d30v_howto_table[] =
254*3d8817e4Smiod {
255*3d8817e4Smiod /* This reloc does nothing. */
256*3d8817e4Smiod HOWTO (R_D30V_NONE, /* Type. */
257*3d8817e4Smiod 0, /* Rightshift. */
258*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
259*3d8817e4Smiod 32, /* Bitsize. */
260*3d8817e4Smiod FALSE, /* PC_relative. */
261*3d8817e4Smiod 0, /* Bitpos. */
262*3d8817e4Smiod complain_overflow_bitfield, /* Complain_on_overflow. */
263*3d8817e4Smiod bfd_elf_generic_reloc, /* Special_function. */
264*3d8817e4Smiod "R_D30V_NONE", /* Name. */
265*3d8817e4Smiod FALSE, /* Partial_inplace. */
266*3d8817e4Smiod 0, /* Src_mask. */
267*3d8817e4Smiod 0, /* Dst_mask. */
268*3d8817e4Smiod FALSE), /* PCrel_offset. */
269*3d8817e4Smiod
270*3d8817e4Smiod /* A 6 bit absolute relocation. */
271*3d8817e4Smiod HOWTO (R_D30V_6, /* Type. */
272*3d8817e4Smiod 0, /* Rightshift. */
273*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
274*3d8817e4Smiod 6, /* Bitsize. */
275*3d8817e4Smiod FALSE, /* PC_relative. */
276*3d8817e4Smiod 0, /* Bitpos. */
277*3d8817e4Smiod complain_overflow_bitfield, /* Complain_on_overflow. */
278*3d8817e4Smiod bfd_elf_generic_reloc, /* Special_function. */
279*3d8817e4Smiod "R_D30V_6", /* Name. */
280*3d8817e4Smiod FALSE, /* Partial_inplace. */
281*3d8817e4Smiod 0x3f, /* Src_mask. */
282*3d8817e4Smiod 0x3f, /* Dst_mask. */
283*3d8817e4Smiod FALSE), /* PCrel_offset. */
284*3d8817e4Smiod
285*3d8817e4Smiod /* A relative 9 bit relocation, right shifted by 3. */
286*3d8817e4Smiod HOWTO (R_D30V_9_PCREL, /* Type. */
287*3d8817e4Smiod 3, /* Rightshift. */
288*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
289*3d8817e4Smiod 6, /* Bitsize. */
290*3d8817e4Smiod TRUE, /* PC_relative. */
291*3d8817e4Smiod 0, /* Bitpos. */
292*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
293*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
294*3d8817e4Smiod "R_D30V_9_PCREL", /* Name. */
295*3d8817e4Smiod FALSE, /* Partial_inplace. */
296*3d8817e4Smiod 0x3f, /* Src_mask. */
297*3d8817e4Smiod 0x3f, /* Dst_mask. */
298*3d8817e4Smiod TRUE), /* PCrel_offset. */
299*3d8817e4Smiod
300*3d8817e4Smiod /* A relative 9 bit relocation, right shifted by 3. */
301*3d8817e4Smiod HOWTO (R_D30V_9_PCREL_R, /* Type. */
302*3d8817e4Smiod 3, /* Rightshift. */
303*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
304*3d8817e4Smiod 6, /* Bitsize. */
305*3d8817e4Smiod TRUE, /* PC_relative. */
306*3d8817e4Smiod 0, /* Bitpos. */
307*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
308*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
309*3d8817e4Smiod "R_D30V_9_PCREL_R", /* Name. */
310*3d8817e4Smiod FALSE, /* Partial_inplace. */
311*3d8817e4Smiod 0x3f, /* Src_mask. */
312*3d8817e4Smiod 0x3f, /* Dst_mask. */
313*3d8817e4Smiod TRUE), /* PCrel_offset. */
314*3d8817e4Smiod
315*3d8817e4Smiod /* An absolute 15 bit relocation, right shifted by 3. */
316*3d8817e4Smiod HOWTO (R_D30V_15, /* Type. */
317*3d8817e4Smiod 3, /* Rightshift. */
318*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
319*3d8817e4Smiod 12, /* Bitsize. */
320*3d8817e4Smiod FALSE, /* PC_relative. */
321*3d8817e4Smiod 0, /* Bitpos. */
322*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
323*3d8817e4Smiod bfd_elf_generic_reloc, /* Special_function. */
324*3d8817e4Smiod "R_D30V_15", /* Name. */
325*3d8817e4Smiod FALSE, /* Partial_inplace. */
326*3d8817e4Smiod 0xfff, /* Src_mask. */
327*3d8817e4Smiod 0xfff, /* Dst_mask. */
328*3d8817e4Smiod FALSE), /* PCrel_offset. */
329*3d8817e4Smiod
330*3d8817e4Smiod /* A relative 15 bit relocation, right shifted by 3. */
331*3d8817e4Smiod HOWTO (R_D30V_15_PCREL, /* Type. */
332*3d8817e4Smiod 3, /* Rightshift. */
333*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
334*3d8817e4Smiod 12, /* Bitsize. */
335*3d8817e4Smiod TRUE, /* PC_relative. */
336*3d8817e4Smiod 0, /* Bitpos. */
337*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
338*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
339*3d8817e4Smiod "R_D30V_15_PCREL", /* Name. */
340*3d8817e4Smiod FALSE, /* Partial_inplace. */
341*3d8817e4Smiod 0xfff, /* Src_mask. */
342*3d8817e4Smiod 0xfff, /* Dst_mask. */
343*3d8817e4Smiod TRUE), /* PCrel_offset. */
344*3d8817e4Smiod
345*3d8817e4Smiod /* A relative 15 bit relocation, right shifted by 3. */
346*3d8817e4Smiod HOWTO (R_D30V_15_PCREL_R, /* Type. */
347*3d8817e4Smiod 3, /* Rightshift. */
348*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
349*3d8817e4Smiod 12, /* Bitsize. */
350*3d8817e4Smiod TRUE, /* PC_relative. */
351*3d8817e4Smiod 0, /* Bitpos. */
352*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
353*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
354*3d8817e4Smiod "R_D30V_15_PCREL_R", /* Name. */
355*3d8817e4Smiod FALSE, /* Partial_inplace. */
356*3d8817e4Smiod 0xfff, /* Src_mask. */
357*3d8817e4Smiod 0xfff, /* Dst_mask. */
358*3d8817e4Smiod TRUE), /* PCrel_offset. */
359*3d8817e4Smiod
360*3d8817e4Smiod /* An absolute 21 bit relocation, right shifted by 3. */
361*3d8817e4Smiod HOWTO (R_D30V_21, /* Type. */
362*3d8817e4Smiod 3, /* Rightshift. */
363*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
364*3d8817e4Smiod 18, /* Bitsize. */
365*3d8817e4Smiod FALSE, /* PC_relative. */
366*3d8817e4Smiod 0, /* Bitpos. */
367*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
368*3d8817e4Smiod bfd_elf_generic_reloc, /* Special_function. */
369*3d8817e4Smiod "R_D30V_21", /* Name. */
370*3d8817e4Smiod FALSE, /* Partial_inplace. */
371*3d8817e4Smiod 0x3ffff, /* Src_mask. */
372*3d8817e4Smiod 0x3ffff, /* Dst_mask. */
373*3d8817e4Smiod FALSE), /* PCrel_offset. */
374*3d8817e4Smiod
375*3d8817e4Smiod /* A relative 21 bit relocation, right shifted by 3. */
376*3d8817e4Smiod HOWTO (R_D30V_21_PCREL, /* Type. */
377*3d8817e4Smiod 3, /* Rightshift. */
378*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
379*3d8817e4Smiod 18, /* Bitsize. */
380*3d8817e4Smiod TRUE, /* PC_relative. */
381*3d8817e4Smiod 0, /* Bitpos. */
382*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
383*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
384*3d8817e4Smiod "R_D30V_21_PCREL", /* Name. */
385*3d8817e4Smiod FALSE, /* Partial_inplace. */
386*3d8817e4Smiod 0x3ffff, /* Src_mask. */
387*3d8817e4Smiod 0x3ffff, /* Dst_mask. */
388*3d8817e4Smiod TRUE), /* PCrel_offset. */
389*3d8817e4Smiod
390*3d8817e4Smiod /* A relative 21 bit relocation, right shifted by 3, in the Right container. */
391*3d8817e4Smiod HOWTO (R_D30V_21_PCREL_R, /* Type. */
392*3d8817e4Smiod 3, /* Rightshift. */
393*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
394*3d8817e4Smiod 18, /* Bitsize. */
395*3d8817e4Smiod TRUE, /* PC_relative. */
396*3d8817e4Smiod 0, /* Bitpos. */
397*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
398*3d8817e4Smiod bfd_elf_d30v_reloc_21, /* Special_function. */
399*3d8817e4Smiod "R_D30V_21_PCREL_R", /* Name. */
400*3d8817e4Smiod FALSE, /* Partial_inplace. */
401*3d8817e4Smiod 0x3ffff, /* Src_mask. */
402*3d8817e4Smiod 0x3ffff, /* Dst_mask. */
403*3d8817e4Smiod TRUE), /* PCrel_offset. */
404*3d8817e4Smiod
405*3d8817e4Smiod /* A D30V 32 bit absolute relocation. */
406*3d8817e4Smiod HOWTO (R_D30V_32, /* Type. */
407*3d8817e4Smiod 0, /* Rightshift. */
408*3d8817e4Smiod 4, /* Size (0 = byte, 1 = short, 2 = long). */
409*3d8817e4Smiod 32, /* Bitsize. */
410*3d8817e4Smiod FALSE, /* PC_relative. */
411*3d8817e4Smiod 0, /* Bitpos. */
412*3d8817e4Smiod complain_overflow_bitfield, /* Complain_on_overflow. */
413*3d8817e4Smiod bfd_elf_d30v_reloc, /* Special_function. */
414*3d8817e4Smiod "R_D30V_32", /* Name. */
415*3d8817e4Smiod FALSE, /* Partial_inplace. */
416*3d8817e4Smiod 0xffffffff, /* Src_mask. */
417*3d8817e4Smiod 0xffffffff, /* Dst_mask. */
418*3d8817e4Smiod FALSE), /* PCrel_offset. */
419*3d8817e4Smiod
420*3d8817e4Smiod /* A relative 32 bit relocation. */
421*3d8817e4Smiod HOWTO (R_D30V_32_PCREL, /* Type. */
422*3d8817e4Smiod 0, /* Rightshift. */
423*3d8817e4Smiod 4, /* Size (0 = byte, 1 = short, 2 = long). */
424*3d8817e4Smiod 32, /* Bitsize. */
425*3d8817e4Smiod TRUE, /* PC_relative. */
426*3d8817e4Smiod 0, /* Bitpos. */
427*3d8817e4Smiod complain_overflow_signed, /* Complain_on_overflow. */
428*3d8817e4Smiod bfd_elf_d30v_reloc, /* Special_function. */
429*3d8817e4Smiod "R_D30V_32_PCREL", /* Name. */
430*3d8817e4Smiod FALSE, /* Partial_inplace. */
431*3d8817e4Smiod 0xffffffff, /* Src_mask. */
432*3d8817e4Smiod 0xffffffff, /* Dst_mask. */
433*3d8817e4Smiod TRUE), /* PCrel_offset. */
434*3d8817e4Smiod
435*3d8817e4Smiod /* A regular 32 bit absolute relocation. */
436*3d8817e4Smiod HOWTO (R_D30V_32_NORMAL, /* Type. */
437*3d8817e4Smiod 0, /* Rightshift. */
438*3d8817e4Smiod 2, /* Size (0 = byte, 1 = short, 2 = long). */
439*3d8817e4Smiod 32, /* Bitsize. */
440*3d8817e4Smiod FALSE, /* PC_relative. */
441*3d8817e4Smiod 0, /* Bitpos. */
442*3d8817e4Smiod complain_overflow_bitfield, /* Complain_on_overflow. */
443*3d8817e4Smiod bfd_elf_generic_reloc, /* Special_function. */
444*3d8817e4Smiod "R_D30V_32_NORMAL", /* Name. */
445*3d8817e4Smiod FALSE, /* Partial_inplace. */
446*3d8817e4Smiod 0xffffffff, /* Src_mask. */
447*3d8817e4Smiod 0xffffffff, /* Dst_mask. */
448*3d8817e4Smiod FALSE), /* PCrel_offset. */
449*3d8817e4Smiod
450*3d8817e4Smiod };
451*3d8817e4Smiod
452*3d8817e4Smiod /* Map BFD reloc types to D30V ELF reloc types. */
453*3d8817e4Smiod
454*3d8817e4Smiod struct d30v_reloc_map
455*3d8817e4Smiod {
456*3d8817e4Smiod bfd_reloc_code_real_type bfd_reloc_val;
457*3d8817e4Smiod unsigned char elf_reloc_val;
458*3d8817e4Smiod };
459*3d8817e4Smiod
460*3d8817e4Smiod static const struct d30v_reloc_map d30v_reloc_map[] =
461*3d8817e4Smiod {
462*3d8817e4Smiod { BFD_RELOC_NONE, R_D30V_NONE, },
463*3d8817e4Smiod { BFD_RELOC_D30V_6, R_D30V_6 },
464*3d8817e4Smiod { BFD_RELOC_D30V_9_PCREL, R_D30V_9_PCREL },
465*3d8817e4Smiod { BFD_RELOC_D30V_9_PCREL_R, R_D30V_9_PCREL_R },
466*3d8817e4Smiod { BFD_RELOC_D30V_15, R_D30V_15 },
467*3d8817e4Smiod { BFD_RELOC_D30V_15_PCREL, R_D30V_15_PCREL },
468*3d8817e4Smiod { BFD_RELOC_D30V_15_PCREL_R, R_D30V_15_PCREL_R },
469*3d8817e4Smiod { BFD_RELOC_D30V_21, R_D30V_21 },
470*3d8817e4Smiod { BFD_RELOC_D30V_21_PCREL, R_D30V_21_PCREL },
471*3d8817e4Smiod { BFD_RELOC_D30V_21_PCREL_R, R_D30V_21_PCREL_R },
472*3d8817e4Smiod { BFD_RELOC_D30V_32, R_D30V_32 },
473*3d8817e4Smiod { BFD_RELOC_D30V_32_PCREL, R_D30V_32_PCREL },
474*3d8817e4Smiod { BFD_RELOC_32, R_D30V_32_NORMAL },
475*3d8817e4Smiod };
476*3d8817e4Smiod
477*3d8817e4Smiod static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)478*3d8817e4Smiod bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
479*3d8817e4Smiod bfd_reloc_code_real_type code)
480*3d8817e4Smiod {
481*3d8817e4Smiod unsigned int i;
482*3d8817e4Smiod
483*3d8817e4Smiod for (i = 0;
484*3d8817e4Smiod i < sizeof (d30v_reloc_map) / sizeof (struct d30v_reloc_map);
485*3d8817e4Smiod i++)
486*3d8817e4Smiod {
487*3d8817e4Smiod if (d30v_reloc_map[i].bfd_reloc_val == code)
488*3d8817e4Smiod return &elf_d30v_howto_table[d30v_reloc_map[i].elf_reloc_val];
489*3d8817e4Smiod }
490*3d8817e4Smiod
491*3d8817e4Smiod return NULL;
492*3d8817e4Smiod }
493*3d8817e4Smiod
494*3d8817e4Smiod /* Set the howto pointer for an D30V ELF reloc (type REL). */
495*3d8817e4Smiod
496*3d8817e4Smiod static void
d30v_info_to_howto_rel(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)497*3d8817e4Smiod d30v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
498*3d8817e4Smiod arelent *cache_ptr,
499*3d8817e4Smiod Elf_Internal_Rela *dst)
500*3d8817e4Smiod {
501*3d8817e4Smiod unsigned int r_type;
502*3d8817e4Smiod
503*3d8817e4Smiod r_type = ELF32_R_TYPE (dst->r_info);
504*3d8817e4Smiod BFD_ASSERT (r_type < (unsigned int) R_D30V_max);
505*3d8817e4Smiod cache_ptr->howto = &elf_d30v_howto_table[r_type];
506*3d8817e4Smiod }
507*3d8817e4Smiod
508*3d8817e4Smiod /* Set the howto pointer for an D30V ELF reloc (type RELA). */
509*3d8817e4Smiod
510*3d8817e4Smiod static void
d30v_info_to_howto_rela(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)511*3d8817e4Smiod d30v_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
512*3d8817e4Smiod arelent *cache_ptr,
513*3d8817e4Smiod Elf_Internal_Rela *dst)
514*3d8817e4Smiod {
515*3d8817e4Smiod unsigned int r_type;
516*3d8817e4Smiod
517*3d8817e4Smiod r_type = ELF32_R_TYPE (dst->r_info);
518*3d8817e4Smiod BFD_ASSERT (r_type < (unsigned int) R_D30V_max);
519*3d8817e4Smiod cache_ptr->howto = &elf_d30v_howto_table[r_type];
520*3d8817e4Smiod }
521*3d8817e4Smiod
522*3d8817e4Smiod #define ELF_ARCH bfd_arch_d30v
523*3d8817e4Smiod #define ELF_MACHINE_CODE EM_D30V
524*3d8817e4Smiod #define ELF_MACHINE_ALT1 EM_CYGNUS_D30V
525*3d8817e4Smiod #define ELF_MAXPAGESIZE 0x1000
526*3d8817e4Smiod
527*3d8817e4Smiod #define TARGET_BIG_SYM bfd_elf32_d30v_vec
528*3d8817e4Smiod #define TARGET_BIG_NAME "elf32-d30v"
529*3d8817e4Smiod
530*3d8817e4Smiod #define elf_info_to_howto d30v_info_to_howto_rela
531*3d8817e4Smiod #define elf_info_to_howto_rel d30v_info_to_howto_rel
532*3d8817e4Smiod #define elf_backend_object_p 0
533*3d8817e4Smiod #define elf_backend_final_write_processing 0
534*3d8817e4Smiod
535*3d8817e4Smiod #include "elf32-target.h"
536