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
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
|
# DP: updates from the binutils-2.33 branch
# git diff b5624945ea67525c0ba4ffec7a9d3f9366bf9071 7c65b97032bb8f8572723d4ce10d4f07c00c1734
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index aa5a81ffed..86ce07a1c1 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,25 @@
+2019-10-20 John David Anglin <danglin@gcc.gnu.org>
+
+ * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Provide 8-byte
+ minimum alignment for .plt section.
+
+ * elf32-hppa.c: Revise import stub sequences.
+ (LONG_BRANCH_STUB_SIZE): Define.
+ (LONG_BRANCH_SHARED_STUB_SIZE): Define.
+ (IMPORT_STUB_SIZE): Define.
+ (IMPORT_SHARED_STUB_SIZE): Define.
+ (EXPORT_STUB_SIZE): Define.
+ (plt_stub): Revise to not use register %r22.
+ (LDO_R1_R22): Define.
+ (LDW_R22_R21): Define.
+ (LDW_R22_R19): Define.
+ (hppa_build_one_stub): Update stub generation and use new defines.
+ (hppa_size_one_stub): Likewise.
+
+2019-10-13 Nick Clifton <nickc@redhat.com>
+
+ * development.sh (development): Reset to true.
+
2019-10-12 Nick Clifton <nickc@redhat.com>
Release 2.33.1
diff --git a/bfd/development.sh b/bfd/development.sh
index eb0e7b6da1..54d494c105 100644
--- a/bfd/development.sh
+++ b/bfd/development.sh
@@ -16,7 +16,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Controls whether to enable development-mode features by default.
-development=false
+development=true
# Indicate whether this is a release branch.
experimental=false
diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c
index a61adbc3c8..cd99584f27 100644
--- a/bfd/elf32-hppa.c
+++ b/bfd/elf32-hppa.c
@@ -71,34 +71,38 @@
Import stub to call shared library routine from normal object file
(single sub-space version)
- : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
- : ldw RR'lt_ptr+ltoff(%r1),%r21
+ : addil LR'lt_ptr+ltoff,%dp ; get PLT address
+ : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
+ : ldw 0(%r22),%r21 ; get procedure entry point
: bv %r0(%r21)
- : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
+ : ldw 4(%r22),%r19 ; get new dlt value.
Import stub to call shared library routine from shared library
(single sub-space version)
- : addil LR'ltoff,%r19 ; get procedure entry point
- : ldw RR'ltoff(%r1),%r21
+ : addil LR'ltoff,%r19 ; get PLT address
+ : ldo RR'ltoff(%r1),%r22
+ : ldw 0(%r22),%r21 ; get procedure entry point
: bv %r0(%r21)
- : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
+ : ldw 4(%r22),%r19 ; get new dlt value.
Import stub to call shared library routine from normal object file
(multiple sub-space support)
- : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
- : ldw RR'lt_ptr+ltoff(%r1),%r21
- : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
- : ldsid (%r21),%r1
+ : addil LR'lt_ptr+ltoff,%dp ; get PLT address
+ : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
+ : ldw 0(%r22),%r21 ; get procedure entry point
+ : ldsid (%r21),%r1 ; get target sid
+ : ldw 4(%r22),%r19 ; get new dlt value.
: mtsp %r1,%sr0
: be 0(%sr0,%r21) ; branch to target
: stw %rp,-24(%sp) ; save rp
Import stub to call shared library routine from shared library
(multiple sub-space support)
- : addil LR'ltoff,%r19 ; get procedure entry point
- : ldw RR'ltoff(%r1),%r21
- : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
- : ldsid (%r21),%r1
+ : addil LR'ltoff,%r19 ; get PLT address
+ : ldo RR'ltoff(%r1),%r22
+ : ldw 0(%r22),%r21 ; get procedure entry point
+ : ldsid (%r21),%r1 ; get target sid
+ : ldw 4(%r22),%r19 ; get new dlt value.
: mtsp %r1,%sr0
: be 0(%sr0,%r21) ; branch to target
: stw %rp,-24(%sp) ; save rp
@@ -136,12 +140,17 @@
#define PLT_ENTRY_SIZE 8
#define GOT_ENTRY_SIZE 4
+#define LONG_BRANCH_STUB_SIZE 8
+#define LONG_BRANCH_SHARED_STUB_SIZE 12
+#define IMPORT_STUB_SIZE 20
+#define IMPORT_SHARED_STUB_SIZE 32
+#define EXPORT_STUB_SIZE 24
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
static const bfd_byte plt_stub[] =
{
- 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
- 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
+ 0x0e, 0x80, 0x10, 0x95, /* 1: ldw 0(%r20),%r21 */
+ 0xea, 0xa0, 0xc0, 0x00, /* bv %r0(%r21) */
0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
#define PLT_STUB_ENTRY (3*4)
0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
@@ -662,6 +671,10 @@ hppa_type_of_stub (asection *input_sec,
#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
+#define LDO_R1_R22 0x34360000 /* ldo RR'XXX(%r1),%r22 */
+#define LDW_R22_R21 0x0ec01095 /* ldw 0(%r22),%r21 */
+#define LDW_R22_R19 0x0ec81093 /* ldw 4(%r22),%r19 */
+
#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
@@ -734,7 +747,7 @@ hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
bfd_put_32 (stub_bfd, insn, loc + 4);
- size = 8;
+ size = LONG_BRANCH_STUB_SIZE;
break;
case hppa_stub_long_branch_shared:
@@ -756,7 +769,7 @@ hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
bfd_put_32 (stub_bfd, insn, loc + 8);
- size = 12;
+ size = LONG_BRANCH_SHARED_STUB_SIZE;
break;
case hppa_stub_import:
@@ -776,40 +789,35 @@ hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
if (hsh->stub_type == hppa_stub_import_shared)
insn = ADDIL_R19;
#endif
+
+ /* Load function descriptor address into register %r22. It is
+ sometimes needed for lazy binding. */
val = hppa_field_adjust (sym_value, 0, e_lrsel),
insn = hppa_rebuild_insn ((int) insn, val, 21);
bfd_put_32 (stub_bfd, insn, loc);
- /* It is critical to use lrsel/rrsel here because we are using
- two different offsets (+0 and +4) from sym_value. If we use
- lsel/rsel then with unfortunate sym_values we will round
- sym_value+4 up to the next 2k block leading to a mis-match
- between the lsel and rsel value. */
val = hppa_field_adjust (sym_value, 0, e_rrsel);
- insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
+ insn = hppa_rebuild_insn ((int) LDO_R1_R22, val, 14);
bfd_put_32 (stub_bfd, insn, loc + 4);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R21, loc + 8);
+
if (htab->multi_subspace)
{
- val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
- insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
- bfd_put_32 (stub_bfd, insn, loc + 8);
-
bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
- bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
- bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
- bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16);
+ bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 20);
+ bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 24);
+ bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 28);
- size = 28;
+ size = IMPORT_SHARED_STUB_SIZE;
}
else
{
- bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
- val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
- insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
- bfd_put_32 (stub_bfd, insn, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16);
- size = 16;
+ size = IMPORT_STUB_SIZE;
}
break;
@@ -858,7 +866,7 @@ hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
hsh->hh->eh.root.u.def.section = stub_sec;
hsh->hh->eh.root.u.def.value = stub_sec->size;
- size = 24;
+ size = EXPORT_STUB_SIZE;
break;
default:
@@ -906,17 +914,17 @@ hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
htab = in_arg;
if (hsh->stub_type == hppa_stub_long_branch)
- size = 8;
+ size = LONG_BRANCH_STUB_SIZE;
else if (hsh->stub_type == hppa_stub_long_branch_shared)
- size = 12;
+ size = LONG_BRANCH_SHARED_STUB_SIZE;
else if (hsh->stub_type == hppa_stub_export)
- size = 24;
+ size = EXPORT_STUB_SIZE;
else /* hppa_stub_import or hppa_stub_import_shared. */
{
if (htab->multi_subspace)
- size = 28;
+ size = IMPORT_SHARED_STUB_SIZE;
else
- size = 16;
+ size = IMPORT_STUB_SIZE;
}
hsh->stub_sec->size += size;
@@ -2272,10 +2280,11 @@ elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
against the .got section. */
int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
int pltalign = bfd_section_alignment (dynobj, sec);
+ int align = gotalign > 3 ? gotalign : 3;
bfd_size_type mask;
- if (gotalign > pltalign)
- (void) bfd_set_section_alignment (dynobj, sec, gotalign);
+ if (align > pltalign)
+ (void) bfd_set_section_alignment (dynobj, sec, align);
mask = ((bfd_size_type) 1 << gotalign) - 1;
sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
}
diff --git a/bfd/version.h b/bfd/version.h
index c83a871701..14b15f3991 100644
--- a/bfd/version.h
+++ b/bfd/version.h
@@ -16,7 +16,7 @@
In releases, the date is not included in either version strings or
sonames. */
-#define BFD_VERSION_DATE 20191012
+#define BFD_VERSION_DATE 20191020
#define BFD_VERSION @bfd_version@
#define BFD_VERSION_STRING @bfd_version_package@ @bfd_version_string@
#define REPORT_BUGS_TO @report_bugs_to@
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 75324bfaac..0955809b5b 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,17 @@
+2019-10-14 Tamar Christina <tamar.christina@arm.com>
+
+ Backported from mainline.
+ 2019-09-24 Tamar Christina <tamar.christina@arm.com>
+
+ PR gas/24991
+ * config/tc-arm.c (out_of_range_p): New.
+ (md_apply_fix): Use it in BFD_RELOC_THUMB_PCREL_BRANCH9,
+ BFD_RELOC_THUMB_PCREL_BRANCH12, BFD_RELOC_THUMB_PCREL_BRANCH20,
+ BFD_RELOC_THUMB_PCREL_BRANCH23, BFD_RELOC_THUMB_PCREL_BRANCH25
+ * testsuite/gas/arm/pr24991.d: New test.
+ * testsuite/gas/arm/pr24991.l: New test.
+ * testsuite/gas/arm/pr24991.s: New test.
+
2019-10-12 Nick Clifton <nickc@redhat.com>
Release 2.33.1
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 9273bb5783..caabdbba90 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -106,6 +106,15 @@ enum arm_float_abi
should define CPU_DEFAULT here. */
#endif
+/* Perform range checks on positive and negative overflows by checking if the
+ VALUE given fits within the range of an BITS sized immediate. */
+static bfd_boolean out_of_range_p (offsetT value, offsetT bits)
+ {
+ gas_assert (bits < (offsetT)(sizeof (value) * 8));
+ return (value & ~((1 << bits)-1))
+ && ((value & ~((1 << bits)-1)) != ~((1 << bits)-1));
+}
+
#ifndef FPU_DEFAULT
# ifdef TE_LINUX
# define FPU_DEFAULT FPU_ARCH_FPA
@@ -28047,7 +28056,7 @@ md_apply_fix (fixS * fixP,
break;
case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
- if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
+ if (out_of_range_p (value, 8))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
if (fixP->fx_done || !seg->use_rela_p)
@@ -28059,7 +28068,7 @@ md_apply_fix (fixS * fixP,
break;
case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
- if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
+ if (out_of_range_p (value, 11))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
if (fixP->fx_done || !seg->use_rela_p)
@@ -28070,6 +28079,7 @@ md_apply_fix (fixS * fixP,
}
break;
+ /* This relocation is misnamed, it should be BRANCH21. */
case BFD_RELOC_THUMB_PCREL_BRANCH20:
if (fixP->fx_addsy
&& (S_GET_SEGMENT (fixP->fx_addsy) == seg)
@@ -28080,7 +28090,7 @@ md_apply_fix (fixS * fixP,
/* Force a relocation for a branch 20 bits wide. */
fixP->fx_done = 0;
}
- if ((value & ~0x1fffff) && ((value & ~0x0fffff) != ~0x0fffff))
+ if (out_of_range_p (value, 20))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("conditional branch out of range"));
@@ -28159,12 +28169,11 @@ md_apply_fix (fixS * fixP,
fixP->fx_r_type = BFD_RELOC_THUMB_PCREL_BRANCH23;
#endif
- if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
+ if (out_of_range_p (value, 22))
{
if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
- else if ((value & ~0x1ffffff)
- && ((value & ~0x1ffffff) != ~0x1ffffff))
+ else if (out_of_range_p (value, 24))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("Thumb2 branch out of range"));
}
@@ -28175,7 +28184,7 @@ md_apply_fix (fixS * fixP,
break;
case BFD_RELOC_THUMB_PCREL_BRANCH25:
- if ((value & ~0x0ffffff) && ((value & ~0x0ffffff) != ~0x0ffffff))
+ if (out_of_range_p (value, 24))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
if (fixP->fx_done || !seg->use_rela_p)
diff --git a/gas/testsuite/gas/arm/pr24991.d b/gas/testsuite/gas/arm/pr24991.d
new file mode 100644
index 0000000000..2acca2d656
--- /dev/null
+++ b/gas/testsuite/gas/arm/pr24991.d
@@ -0,0 +1,4 @@
+#as: -march=armv7-a
+#source: pr24991.s
+#error_output: pr24991.l
+
diff --git a/gas/testsuite/gas/arm/pr24991.l b/gas/testsuite/gas/arm/pr24991.l
new file mode 100644
index 0000000000..4fc58751c8
--- /dev/null
+++ b/gas/testsuite/gas/arm/pr24991.l
@@ -0,0 +1,2 @@
+[^:]*: Assembler messages:
+[^:]*:4: Error: conditional branch out of range
diff --git a/gas/testsuite/gas/arm/pr24991.s b/gas/testsuite/gas/arm/pr24991.s
new file mode 100644
index 0000000000..27f8daff1c
--- /dev/null
+++ b/gas/testsuite/gas/arm/pr24991.s
@@ -0,0 +1,5 @@
+ .arch armv7-a
+ .syntax unified
+ .thumb
+ beq .+ 0x124f80
+
|