summaryrefslogtreecommitdiff
path: root/recipes/prelink/prelink-20061027/arm_eabi.patch
blob: dbce9d2895d467dd118bf84747ce0c2315a878f3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
---
 src/arch-arm.c |  177 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 172 insertions(+), 5 deletions(-)

Index: prelink-0.0.20061027/src/arch-arm.c
===================================================================
--- prelink-0.0.20061027.orig/src/arch-arm.c	2006-08-13 16:18:17.000000000 +0100
+++ prelink-0.0.20061027/src/arch-arm.c	2007-09-04 12:29:06.000000000 +0100
@@ -145,6 +145,26 @@ arm_prelink_rel (struct prelink_info *in
       error (0, 0, "%s: R_ARM_PC24 relocs with non-zero addend should not be present in prelinked REL sections",
 	     dso->filename);
       return 1;
+    /* DTPOFF32, DTPMOD32 and TPOFF32 is impossible to predict unless prelink
+       sets the rules.  Also for DTPOFF32/TPOFF32 there is REL->RELA problem.  */
+    case R_ARM_TLS_DTPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC)
+	error (0, 0, "%s: R_ARM_TLS_DTPOFF32 relocs should not be present in prelinked ET_EXEC REL sections",
+	       dso->filename);
+      break;
+    case R_ARM_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+	{
+	  error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+		 dso->filename);
+	  return 1;
+	}
+      break;
+    case R_ARM_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC)
+	error (0, 0, "%s: R_ARM_TLS_TPOFF32 relocs should not be present in prelinked ET_EXEC REL sections",
+	       dso->filename);
+      break;
     case R_ARM_COPY:
       if (dso->ehdr.e_type == ET_EXEC)
 	/* COPY relocs are handled specially in generic code.  */
@@ -195,6 +215,25 @@ arm_prelink_rela (struct prelink_info *i
       write_le32 (dso, rela->r_offset,
 		  (read_ule32 (dso, rela->r_offset) & 0xff000000) | val);
       break;
+    case R_ARM_TLS_DTPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC)
+	write_le32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD32 and TPOFF32 are impossible to predict unless prelink
+       sets the rules.  */
+    case R_ARM_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+	{
+	  error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+		 dso->filename);
+	  return 1;
+	}
+      break;
+    case R_ARM_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+	write_le32 (dso, rela->r_offset,
+		    value + rela->r_addend + info->resolvetls->offset);
+      break;
     case R_ARM_COPY:
       if (dso->ehdr.e_type == ET_EXEC)
 	/* COPY relocs are handled specially in generic code.  */
@@ -315,6 +354,7 @@ arm_prelink_conflict_rel (DSO *dso, stru
 {
   GElf_Addr value;
   struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
   GElf_Rela *ret;
 
   if (GELF_R_TYPE (rel->r_info) == R_ARM_RELATIVE
@@ -324,8 +364,32 @@ arm_prelink_conflict_rel (DSO *dso, stru
   conflict = prelink_conflict (info, GELF_R_SYM (rel->r_info),
 			       GELF_R_TYPE (rel->r_info));
   if (conflict == NULL)
-    return 0;
-  value = conflict_lookup_value (conflict);
+    {
+      if (info->curtls == NULL)
+	return 0;
+      switch (GELF_R_TYPE (rel->r_info))
+	{
+	/* Even local DTPMOD and {D,}TPOFF relocs need conflicts.  */
+	case R_ARM_TLS_DTPMOD32:
+	case R_ARM_TLS_DTPOFF32:
+	case R_ARM_TLS_TPOFF32:
+	  break;
+	default:
+	  return 0;
+	}
+      value = 0;
+    }
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+	 with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rel->r_info) == R_ARM_TLS_DTPOFF32
+	  && conflict->lookup.tls == conflict->conflict.tls
+	  && conflict->lookupval == conflict->conflictval)
+	return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
   ret = prelink_conflict_add_rela (info);
   if (ret == NULL)
     return 1;
@@ -342,6 +406,33 @@ arm_prelink_conflict_rel (DSO *dso, stru
       error (0, 0, "%s: R_ARM_%s relocs should not be present in prelinked REL sections",
 	     dso->filename, GELF_R_TYPE (rel->r_info) == R_ARM_ABS32 ? "ABS32" : "PC24");
       return 1;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      if (conflict != NULL
+	  && (conflict->reloc_class != RTYPE_CLASS_TLS
+	      || conflict->lookup.tls == NULL))
+	{
+	  error (0, 0, "%s: R_ARM_TLS not resolving to STT_TLS symbol",
+		 dso->filename);
+	  return 1;
+	}
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+      switch (GELF_R_TYPE (rel->r_info))
+	{
+	case R_ARM_TLS_DTPMOD32:
+	  ret->r_addend = tls->modid;
+	  break;
+	case R_ARM_TLS_DTPOFF32:
+	  ret->r_addend = value + read_ule32 (dso, rel->r_offset);
+	  break;
+	case R_ARM_TLS_TPOFF32:
+	  ret->r_addend = value + read_ule32 (dso, rel->r_offset)
+			    + tls->offset;
+	  break;
+	}
+      break;
     case R_ARM_COPY:
       error (0, 0, "R_ARM_COPY should not be present in shared libraries");
       return 1;
@@ -359,6 +450,7 @@ arm_prelink_conflict_rela (DSO *dso, str
 {
   GElf_Addr value;
   struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
   GElf_Rela *ret;
   Elf32_Sword val;
 
@@ -369,8 +461,32 @@ arm_prelink_conflict_rela (DSO *dso, str
   conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
 			       GELF_R_TYPE (rela->r_info));
   if (conflict == NULL)
-    return 0;
-  value = conflict_lookup_value (conflict);
+    {
+      if (info->curtls == NULL)
+	return 0;
+      switch (GELF_R_TYPE (rela->r_info))
+	{
+	/* Even local DTPMOD and {D,}TPOFF relocs need conflicts.  */
+	case R_ARM_TLS_DTPMOD32:
+	case R_ARM_TLS_DTPOFF32:
+	case R_ARM_TLS_TPOFF32:
+	  break;
+	default:
+	  return 0;
+	}
+      value = 0;
+    }
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+	 with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_ARM_TLS_DTPOFF32
+	  && conflict->lookup.tls == conflict->conflict.tls
+	  && conflict->lookupval == conflict->conflictval)
+	return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
   ret = prelink_conflict_add_rela (info);
   if (ret == NULL)
     return 1;
@@ -398,6 +514,32 @@ arm_prelink_conflict_rela (DSO *dso, str
     case R_ARM_COPY:
       error (0, 0, "R_ARM_COPY should not be present in shared libraries");
       return 1;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      if (conflict != NULL
+	  && (conflict->reloc_class != RTYPE_CLASS_TLS
+	      || conflict->lookup.tls == NULL))
+	{
+	  error (0, 0, "%s: R_386_TLS not resolving to STT_TLS symbol",
+		 dso->filename);
+	  return 1;
+	}
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+      switch (GELF_R_TYPE (rela->r_info))
+	{
+	case R_ARM_TLS_DTPMOD32:
+	  ret->r_addend = tls->modid;
+	  break;
+	case R_ARM_TLS_DTPOFF32:
+	  ret->r_addend = value + rela->r_addend;
+	  break;
+	case R_ARM_TLS_TPOFF32:
+	  ret->r_addend = value + rela->r_addend + tls->offset;
+	  break;
+	}
+      break;
     default:
       error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
 	     (int) GELF_R_TYPE (rela->r_info));
@@ -418,6 +560,8 @@ arm_rel_to_rela (DSO *dso, GElf_Rel *rel
       abort ();
     case R_ARM_RELATIVE:
     case R_ARM_ABS32:
+    case R_ARM_TLS_TPOFF32:
+    case R_ARM_TLS_DTPOFF32:
       rela->r_addend = (Elf32_Sword) read_ule32 (dso, rel->r_offset);
       break;
     case R_ARM_PC24:
@@ -426,6 +570,7 @@ arm_rel_to_rela (DSO *dso, GElf_Rel *rel
       break;
     case R_ARM_COPY:
     case R_ARM_GLOB_DAT:
+    case R_ARM_TLS_DTPMOD32:
       rela->r_addend = 0;
       break;
     }
@@ -445,6 +590,8 @@ arm_rela_to_rel (DSO *dso, GElf_Rela *re
       abort ();
     case R_ARM_RELATIVE:
     case R_ARM_ABS32:
+    case R_ARM_TLS_TPOFF32:
+    case R_ARM_TLS_DTPOFF32:
       write_le32 (dso, rela->r_offset, rela->r_addend);
       break;
     case R_ARM_PC24:
@@ -453,6 +600,7 @@ arm_rela_to_rel (DSO *dso, GElf_Rela *re
 		  | ((rela->r_addend >> 2) & 0xffffff));
       break;
     case R_ARM_GLOB_DAT:
+    case R_ARM_TLS_DTPMOD32:
       write_le32 (dso, rela->r_offset, 0);
       break;
     }
@@ -488,6 +636,15 @@ arm_need_rel_to_rela (DSO *dso, int firs
 		/* FALLTHROUGH */
 	      case R_ARM_PC24:
 		return 1;
+	      case R_ARM_TLS_DTPOFF32:
+	      case R_ARM_TLS_TPOFF32:
+		/* In shared libraries {D,}TPOFF32 is changed always into
+		   conflicts, for executables we need to preserve
+		   original addend.  */
+		if (dso->ehdr.e_type == ET_EXEC) {
+		  return 1;
+		}
+		break;
 	      }
 	}
     }
@@ -612,6 +769,12 @@ arm_undo_prelink_rel (DSO *dso, GElf_Rel
 	return 0;
       error (0, 0, "%s: R_ARM_COPY reloc in shared library?", dso->filename);
       return 1;
+    case R_ARM_TLS_DTPMOD32:
+      write_le32 (dso, rel->r_offset, 0);
+      break;
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      break;
     default:
       error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
 	     (int) GELF_R_TYPE (rel->r_info));
@@ -634,6 +797,10 @@ arm_reloc_class (int reloc_type)
     {
     case R_ARM_COPY: return RTYPE_CLASS_COPY;
     case R_ARM_JUMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      return RTYPE_CLASS_TLS;
     default: return RTYPE_CLASS_VALID;
     }
 }
@@ -646,7 +813,7 @@ PL_ARCH = {
   .R_JMP_SLOT = R_ARM_JUMP_SLOT,
   .R_COPY = R_ARM_COPY,
   .R_RELATIVE = R_ARM_RELATIVE,
-  .dynamic_linker = "/lib/ld-linux.so.2",
+  .dynamic_linker = "/lib/ld-linux.so.3",
   .adjust_dyn = arm_adjust_dyn,
   .adjust_rel = arm_adjust_rel,
   .adjust_rela = arm_adjust_rela,