1 /* Copyright (c) 2018, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <gtest/gtest.h>
16 #include <gtest/gtest-spi.h>
17
18 #include <openssl/rand.h>
19
20 #include "test/abi_test.h"
21
22
23 static bool test_function_ok;
TestFunction(int a1,int a2,int a3,int a4,int a5,int a6,int a7,int a8)24 static int TestFunction(int a1, int a2, int a3, int a4, int a5, int a6, int a7,
25 int a8) {
26 test_function_ok = a1 == 1 || a2 == 2 || a3 == 3 || a4 == 4 || a5 == 5 ||
27 a6 == 6 || a7 == 7 || a8 == 8;
28 return 42;
29 }
30
TEST(ABITest,SanityCheck)31 TEST(ABITest, SanityCheck) {
32 EXPECT_NE(0, CHECK_ABI_NO_UNWIND(strcmp, "hello", "world"));
33
34 test_function_ok = false;
35 EXPECT_EQ(42, CHECK_ABI_SEH(TestFunction, 1, 2, 3, 4, 5, 6, 7, 8));
36 EXPECT_TRUE(test_function_ok);
37
38 #if defined(SUPPORTS_ABI_TEST)
39 abi_test::internal::CallerState state;
40 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
41 crypto_word_t argv[] = {
42 1, 2, 3, 4, 5, 6, 7, 8,
43 };
44 CHECK_ABI_SEH(abi_test_trampoline,
45 reinterpret_cast<crypto_word_t>(TestFunction), &state, argv, 8,
46 0 /* no breakpoint */);
47
48 #if defined(OPENSSL_X86_64)
49 if (abi_test::UnwindTestsEnabled()) {
50 EXPECT_NONFATAL_FAILURE(CHECK_ABI_SEH(abi_test_bad_unwind_wrong_register),
51 "was not recovered");
52 EXPECT_NONFATAL_FAILURE(CHECK_ABI_SEH(abi_test_bad_unwind_temporary),
53 "was not recovered");
54
55 CHECK_ABI_NO_UNWIND(abi_test_bad_unwind_wrong_register);
56 CHECK_ABI_NO_UNWIND(abi_test_bad_unwind_temporary);
57
58 #if defined(OPENSSL_WINDOWS)
59 // The invalid epilog makes Windows believe the epilog starts later than it
60 // actually does. As a result, immediately after the popq, it does not
61 // realize the stack has been unwound and repeats the popq. This will result
62 // in reading the wrong return address and fail to unwind. The exact failure
63 // may vary depending on what was on the stack before.
64 EXPECT_NONFATAL_FAILURE(CHECK_ABI_SEH(abi_test_bad_unwind_epilog), "");
65 CHECK_ABI_NO_UNWIND(abi_test_bad_unwind_epilog);
66 #endif // OPENSSL_WINDOWS
67 }
68 #endif // OPENSSL_X86_64
69 #endif // SUPPORTS_ABI_TEST
70 }
71
72 #if defined(OPENSSL_X86_64) && defined(SUPPORTS_ABI_TEST)
73 extern "C" {
74 void abi_test_clobber_rax(void);
75 void abi_test_clobber_rbx(void);
76 void abi_test_clobber_rcx(void);
77 void abi_test_clobber_rdx(void);
78 void abi_test_clobber_rsi(void);
79 void abi_test_clobber_rdi(void);
80 void abi_test_clobber_rbp(void);
81 void abi_test_clobber_r8(void);
82 void abi_test_clobber_r9(void);
83 void abi_test_clobber_r10(void);
84 void abi_test_clobber_r11(void);
85 void abi_test_clobber_r12(void);
86 void abi_test_clobber_r13(void);
87 void abi_test_clobber_r14(void);
88 void abi_test_clobber_r15(void);
89 void abi_test_clobber_xmm0(void);
90 void abi_test_clobber_xmm1(void);
91 void abi_test_clobber_xmm2(void);
92 void abi_test_clobber_xmm3(void);
93 void abi_test_clobber_xmm4(void);
94 void abi_test_clobber_xmm5(void);
95 void abi_test_clobber_xmm6(void);
96 void abi_test_clobber_xmm7(void);
97 void abi_test_clobber_xmm8(void);
98 void abi_test_clobber_xmm9(void);
99 void abi_test_clobber_xmm10(void);
100 void abi_test_clobber_xmm11(void);
101 void abi_test_clobber_xmm12(void);
102 void abi_test_clobber_xmm13(void);
103 void abi_test_clobber_xmm14(void);
104 void abi_test_clobber_xmm15(void);
105 } // extern "C"
106
TEST(ABITest,X86_64)107 TEST(ABITest, X86_64) {
108 // abi_test_trampoline hides unsaved registers from the caller, so we can
109 // safely call the abi_test_clobber_* functions below.
110 abi_test::internal::CallerState state;
111 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
112 CHECK_ABI_NO_UNWIND(abi_test_trampoline,
113 reinterpret_cast<crypto_word_t>(abi_test_clobber_rbx),
114 &state, nullptr, 0, 0 /* no breakpoint */);
115
116 CHECK_ABI_NO_UNWIND(abi_test_clobber_rax);
117 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_rbx),
118 "rbx was not restored after return");
119 CHECK_ABI_NO_UNWIND(abi_test_clobber_rcx);
120 CHECK_ABI_NO_UNWIND(abi_test_clobber_rdx);
121 #if defined(OPENSSL_WINDOWS)
122 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_rdi),
123 "rdi was not restored after return");
124 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_rsi),
125 "rsi was not restored after return");
126 #else
127 CHECK_ABI_NO_UNWIND(abi_test_clobber_rdi);
128 CHECK_ABI_NO_UNWIND(abi_test_clobber_rsi);
129 #endif
130 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_rbp),
131 "rbp was not restored after return");
132 CHECK_ABI_NO_UNWIND(abi_test_clobber_r8);
133 CHECK_ABI_NO_UNWIND(abi_test_clobber_r9);
134 CHECK_ABI_NO_UNWIND(abi_test_clobber_r10);
135 CHECK_ABI_NO_UNWIND(abi_test_clobber_r11);
136 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r12),
137 "r12 was not restored after return");
138 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r13),
139 "r13 was not restored after return");
140 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r14),
141 "r14 was not restored after return");
142 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r15),
143 "r15 was not restored after return");
144
145 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm0);
146 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm1);
147 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm2);
148 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm3);
149 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm4);
150 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm5);
151 #if defined(OPENSSL_WINDOWS)
152 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm6),
153 "xmm6 was not restored after return");
154 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm7),
155 "xmm7 was not restored after return");
156 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm8),
157 "xmm8 was not restored after return");
158 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm9),
159 "xmm9 was not restored after return");
160 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm10),
161 "xmm10 was not restored after return");
162 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm11),
163 "xmm11 was not restored after return");
164 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm12),
165 "xmm12 was not restored after return");
166 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm13),
167 "xmm13 was not restored after return");
168 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm14),
169 "xmm14 was not restored after return");
170 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm15),
171 "xmm15 was not restored after return");
172 #else
173 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm6);
174 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm7);
175 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm8);
176 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm9);
177 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm10);
178 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm11);
179 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm12);
180 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm13);
181 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm14);
182 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm15);
183 #endif
184
185 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_set_direction_flag),
186 "Direction flag set after return");
187 EXPECT_EQ(0, abi_test_get_and_clear_direction_flag())
188 << "CHECK_ABI did not insulate the caller from direction flag errors";
189 }
190 #endif // OPENSSL_X86_64 && SUPPORTS_ABI_TEST
191
192 #if defined(OPENSSL_X86) && defined(SUPPORTS_ABI_TEST)
193 extern "C" {
194 void abi_test_clobber_eax(void);
195 void abi_test_clobber_ebx(void);
196 void abi_test_clobber_ecx(void);
197 void abi_test_clobber_edx(void);
198 void abi_test_clobber_esi(void);
199 void abi_test_clobber_edi(void);
200 void abi_test_clobber_ebp(void);
201 void abi_test_clobber_xmm0(void);
202 void abi_test_clobber_xmm1(void);
203 void abi_test_clobber_xmm2(void);
204 void abi_test_clobber_xmm3(void);
205 void abi_test_clobber_xmm4(void);
206 void abi_test_clobber_xmm5(void);
207 void abi_test_clobber_xmm6(void);
208 void abi_test_clobber_xmm7(void);
209 } // extern "C"
210
TEST(ABITest,X86)211 TEST(ABITest, X86) {
212 // abi_test_trampoline hides unsaved registers from the caller, so we can
213 // safely call the abi_test_clobber_* functions below.
214 abi_test::internal::CallerState state;
215 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
216 CHECK_ABI_NO_UNWIND(abi_test_trampoline,
217 reinterpret_cast<crypto_word_t>(abi_test_clobber_ebx),
218 &state, nullptr, 0, 0 /* no breakpoint */);
219
220 CHECK_ABI_NO_UNWIND(abi_test_clobber_eax);
221 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_ebx),
222 "ebx was not restored after return");
223 CHECK_ABI_NO_UNWIND(abi_test_clobber_ecx);
224 CHECK_ABI_NO_UNWIND(abi_test_clobber_edx);
225 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_edi),
226 "edi was not restored after return");
227 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_esi),
228 "esi was not restored after return");
229 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_ebp),
230 "ebp was not restored after return");
231
232 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm0);
233 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm1);
234 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm2);
235 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm3);
236 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm4);
237 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm5);
238 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm6);
239 CHECK_ABI_NO_UNWIND(abi_test_clobber_xmm7);
240
241 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_set_direction_flag),
242 "Direction flag set after return");
243 EXPECT_EQ(0, abi_test_get_and_clear_direction_flag())
244 << "CHECK_ABI did not insulate the caller from direction flag errors";
245 }
246 #endif // OPENSSL_X86 && SUPPORTS_ABI_TEST
247
248 #if defined(OPENSSL_ARM) && defined(SUPPORTS_ABI_TEST)
249 extern "C" {
250 void abi_test_clobber_r0(void);
251 void abi_test_clobber_r1(void);
252 void abi_test_clobber_r2(void);
253 void abi_test_clobber_r3(void);
254 void abi_test_clobber_r4(void);
255 void abi_test_clobber_r5(void);
256 void abi_test_clobber_r6(void);
257 void abi_test_clobber_r7(void);
258 void abi_test_clobber_r8(void);
259 void abi_test_clobber_r9(void);
260 void abi_test_clobber_r10(void);
261 void abi_test_clobber_r11(void);
262 void abi_test_clobber_r12(void);
263 // r13, r14, and r15, are sp, lr, and pc, respectively.
264
265 void abi_test_clobber_d0(void);
266 void abi_test_clobber_d1(void);
267 void abi_test_clobber_d2(void);
268 void abi_test_clobber_d3(void);
269 void abi_test_clobber_d4(void);
270 void abi_test_clobber_d5(void);
271 void abi_test_clobber_d6(void);
272 void abi_test_clobber_d7(void);
273 void abi_test_clobber_d8(void);
274 void abi_test_clobber_d9(void);
275 void abi_test_clobber_d10(void);
276 void abi_test_clobber_d11(void);
277 void abi_test_clobber_d12(void);
278 void abi_test_clobber_d13(void);
279 void abi_test_clobber_d14(void);
280 void abi_test_clobber_d15(void);
281 } // extern "C"
282
TEST(ABITest,ARM)283 TEST(ABITest, ARM) {
284 // abi_test_trampoline hides unsaved registers from the caller, so we can
285 // safely call the abi_test_clobber_* functions below.
286 abi_test::internal::CallerState state;
287 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
288 CHECK_ABI_NO_UNWIND(abi_test_trampoline,
289 reinterpret_cast<crypto_word_t>(abi_test_clobber_r4),
290 &state, nullptr, 0, 0 /* no breakpoint */);
291
292 CHECK_ABI_NO_UNWIND(abi_test_clobber_r0);
293 CHECK_ABI_NO_UNWIND(abi_test_clobber_r1);
294 CHECK_ABI_NO_UNWIND(abi_test_clobber_r2);
295 CHECK_ABI_NO_UNWIND(abi_test_clobber_r3);
296 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r4),
297 "r4 was not restored after return");
298 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r5),
299 "r5 was not restored after return");
300 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r6),
301 "r6 was not restored after return");
302 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r7),
303 "r7 was not restored after return");
304 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r8),
305 "r8 was not restored after return");
306 #if defined(OPENSSL_APPLE)
307 CHECK_ABI_NO_UNWIND(abi_test_clobber_r9);
308 #else
309 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r9),
310 "r9 was not restored after return");
311 #endif
312 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r10),
313 "r10 was not restored after return");
314 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r11),
315 "r11 was not restored after return");
316 CHECK_ABI_NO_UNWIND(abi_test_clobber_r12);
317
318 CHECK_ABI_NO_UNWIND(abi_test_clobber_d0);
319 CHECK_ABI_NO_UNWIND(abi_test_clobber_d1);
320 CHECK_ABI_NO_UNWIND(abi_test_clobber_d2);
321 CHECK_ABI_NO_UNWIND(abi_test_clobber_d3);
322 CHECK_ABI_NO_UNWIND(abi_test_clobber_d4);
323 CHECK_ABI_NO_UNWIND(abi_test_clobber_d5);
324 CHECK_ABI_NO_UNWIND(abi_test_clobber_d6);
325 CHECK_ABI_NO_UNWIND(abi_test_clobber_d7);
326 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d8),
327 "d8 was not restored after return");
328 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d9),
329 "d9 was not restored after return");
330 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d10),
331 "d10 was not restored after return");
332 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d11),
333 "d11 was not restored after return");
334 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d12),
335 "d12 was not restored after return");
336 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d13),
337 "d13 was not restored after return");
338 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d14),
339 "d14 was not restored after return");
340 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d15),
341 "d15 was not restored after return");
342 }
343 #endif // OPENSSL_ARM && SUPPORTS_ABI_TEST
344
345 #if defined(OPENSSL_AARCH64) && defined(SUPPORTS_ABI_TEST)
346 extern "C" {
347 void abi_test_clobber_x0(void);
348 void abi_test_clobber_x1(void);
349 void abi_test_clobber_x2(void);
350 void abi_test_clobber_x3(void);
351 void abi_test_clobber_x4(void);
352 void abi_test_clobber_x5(void);
353 void abi_test_clobber_x6(void);
354 void abi_test_clobber_x7(void);
355 void abi_test_clobber_x8(void);
356 void abi_test_clobber_x9(void);
357 void abi_test_clobber_x10(void);
358 void abi_test_clobber_x11(void);
359 void abi_test_clobber_x12(void);
360 void abi_test_clobber_x13(void);
361 void abi_test_clobber_x14(void);
362 void abi_test_clobber_x15(void);
363 void abi_test_clobber_x16(void);
364 void abi_test_clobber_x17(void);
365 // x18 is the platform register and off limits.
366 void abi_test_clobber_x19(void);
367 void abi_test_clobber_x20(void);
368 void abi_test_clobber_x21(void);
369 void abi_test_clobber_x22(void);
370 void abi_test_clobber_x23(void);
371 void abi_test_clobber_x24(void);
372 void abi_test_clobber_x25(void);
373 void abi_test_clobber_x26(void);
374 void abi_test_clobber_x27(void);
375 void abi_test_clobber_x28(void);
376 void abi_test_clobber_x29(void);
377
378 void abi_test_clobber_d0(void);
379 void abi_test_clobber_d1(void);
380 void abi_test_clobber_d2(void);
381 void abi_test_clobber_d3(void);
382 void abi_test_clobber_d4(void);
383 void abi_test_clobber_d5(void);
384 void abi_test_clobber_d6(void);
385 void abi_test_clobber_d7(void);
386 void abi_test_clobber_d8(void);
387 void abi_test_clobber_d9(void);
388 void abi_test_clobber_d10(void);
389 void abi_test_clobber_d11(void);
390 void abi_test_clobber_d12(void);
391 void abi_test_clobber_d13(void);
392 void abi_test_clobber_d14(void);
393 void abi_test_clobber_d15(void);
394 void abi_test_clobber_d16(void);
395 void abi_test_clobber_d17(void);
396 void abi_test_clobber_d18(void);
397 void abi_test_clobber_d19(void);
398 void abi_test_clobber_d20(void);
399 void abi_test_clobber_d21(void);
400 void abi_test_clobber_d22(void);
401 void abi_test_clobber_d23(void);
402 void abi_test_clobber_d24(void);
403 void abi_test_clobber_d25(void);
404 void abi_test_clobber_d26(void);
405 void abi_test_clobber_d27(void);
406 void abi_test_clobber_d28(void);
407 void abi_test_clobber_d29(void);
408 void abi_test_clobber_d30(void);
409 void abi_test_clobber_d31(void);
410
411 void abi_test_clobber_v8_upper(void);
412 void abi_test_clobber_v9_upper(void);
413 void abi_test_clobber_v10_upper(void);
414 void abi_test_clobber_v11_upper(void);
415 void abi_test_clobber_v12_upper(void);
416 void abi_test_clobber_v13_upper(void);
417 void abi_test_clobber_v14_upper(void);
418 void abi_test_clobber_v15_upper(void);
419 } // extern "C"
420
TEST(ABITest,AArch64)421 TEST(ABITest, AArch64) {
422 // abi_test_trampoline hides unsaved registers from the caller, so we can
423 // safely call the abi_test_clobber_* functions below.
424 abi_test::internal::CallerState state;
425 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
426 CHECK_ABI_NO_UNWIND(abi_test_trampoline,
427 reinterpret_cast<crypto_word_t>(abi_test_clobber_x19),
428 &state, nullptr, 0, 0 /* no breakpoint */);
429
430 CHECK_ABI_NO_UNWIND(abi_test_clobber_x0);
431 CHECK_ABI_NO_UNWIND(abi_test_clobber_x1);
432 CHECK_ABI_NO_UNWIND(abi_test_clobber_x2);
433 CHECK_ABI_NO_UNWIND(abi_test_clobber_x3);
434 CHECK_ABI_NO_UNWIND(abi_test_clobber_x4);
435 CHECK_ABI_NO_UNWIND(abi_test_clobber_x5);
436 CHECK_ABI_NO_UNWIND(abi_test_clobber_x6);
437 CHECK_ABI_NO_UNWIND(abi_test_clobber_x7);
438 CHECK_ABI_NO_UNWIND(abi_test_clobber_x8);
439 CHECK_ABI_NO_UNWIND(abi_test_clobber_x9);
440 CHECK_ABI_NO_UNWIND(abi_test_clobber_x10);
441 CHECK_ABI_NO_UNWIND(abi_test_clobber_x11);
442 CHECK_ABI_NO_UNWIND(abi_test_clobber_x12);
443 CHECK_ABI_NO_UNWIND(abi_test_clobber_x13);
444 CHECK_ABI_NO_UNWIND(abi_test_clobber_x14);
445 CHECK_ABI_NO_UNWIND(abi_test_clobber_x15);
446 CHECK_ABI_NO_UNWIND(abi_test_clobber_x16);
447 CHECK_ABI_NO_UNWIND(abi_test_clobber_x17);
448
449 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x19),
450 "x19 was not restored after return");
451 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x20),
452 "x20 was not restored after return");
453 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x21),
454 "x21 was not restored after return");
455 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x22),
456 "x22 was not restored after return");
457 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x23),
458 "x23 was not restored after return");
459 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x24),
460 "x24 was not restored after return");
461 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x25),
462 "x25 was not restored after return");
463 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x26),
464 "x26 was not restored after return");
465 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x27),
466 "x27 was not restored after return");
467 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x28),
468 "x28 was not restored after return");
469 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_x29),
470 "x29 was not restored after return");
471
472 CHECK_ABI_NO_UNWIND(abi_test_clobber_d0);
473 CHECK_ABI_NO_UNWIND(abi_test_clobber_d1);
474 CHECK_ABI_NO_UNWIND(abi_test_clobber_d2);
475 CHECK_ABI_NO_UNWIND(abi_test_clobber_d3);
476 CHECK_ABI_NO_UNWIND(abi_test_clobber_d4);
477 CHECK_ABI_NO_UNWIND(abi_test_clobber_d5);
478 CHECK_ABI_NO_UNWIND(abi_test_clobber_d6);
479 CHECK_ABI_NO_UNWIND(abi_test_clobber_d7);
480 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d8),
481 "d8 was not restored after return");
482 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d9),
483 "d9 was not restored after return");
484 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d10),
485 "d10 was not restored after return");
486 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d11),
487 "d11 was not restored after return");
488 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d12),
489 "d12 was not restored after return");
490 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d13),
491 "d13 was not restored after return");
492 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d14),
493 "d14 was not restored after return");
494 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_d15),
495 "d15 was not restored after return");
496 CHECK_ABI_NO_UNWIND(abi_test_clobber_d16);
497 CHECK_ABI_NO_UNWIND(abi_test_clobber_d18);
498 CHECK_ABI_NO_UNWIND(abi_test_clobber_d19);
499 CHECK_ABI_NO_UNWIND(abi_test_clobber_d20);
500 CHECK_ABI_NO_UNWIND(abi_test_clobber_d21);
501 CHECK_ABI_NO_UNWIND(abi_test_clobber_d22);
502 CHECK_ABI_NO_UNWIND(abi_test_clobber_d23);
503 CHECK_ABI_NO_UNWIND(abi_test_clobber_d24);
504 CHECK_ABI_NO_UNWIND(abi_test_clobber_d25);
505 CHECK_ABI_NO_UNWIND(abi_test_clobber_d26);
506 CHECK_ABI_NO_UNWIND(abi_test_clobber_d27);
507 CHECK_ABI_NO_UNWIND(abi_test_clobber_d28);
508 CHECK_ABI_NO_UNWIND(abi_test_clobber_d29);
509 CHECK_ABI_NO_UNWIND(abi_test_clobber_d30);
510 CHECK_ABI_NO_UNWIND(abi_test_clobber_d31);
511
512 // The lower halves of v8-v15 (accessed as d8-d15) must be preserved, but not
513 // the upper halves.
514 CHECK_ABI_NO_UNWIND(abi_test_clobber_v8_upper);
515 CHECK_ABI_NO_UNWIND(abi_test_clobber_v9_upper);
516 CHECK_ABI_NO_UNWIND(abi_test_clobber_v10_upper);
517 CHECK_ABI_NO_UNWIND(abi_test_clobber_v11_upper);
518 CHECK_ABI_NO_UNWIND(abi_test_clobber_v12_upper);
519 CHECK_ABI_NO_UNWIND(abi_test_clobber_v13_upper);
520 CHECK_ABI_NO_UNWIND(abi_test_clobber_v14_upper);
521 CHECK_ABI_NO_UNWIND(abi_test_clobber_v15_upper);
522 }
523 #endif // OPENSSL_AARCH64 && SUPPORTS_ABI_TEST
524
525 #if defined(OPENSSL_PPC64LE) && defined(SUPPORTS_ABI_TEST)
526 extern "C" {
527 void abi_test_clobber_r0(void);
528 // r1 is the stack pointer.
529 void abi_test_clobber_r2(void);
530 void abi_test_clobber_r3(void);
531 void abi_test_clobber_r4(void);
532 void abi_test_clobber_r5(void);
533 void abi_test_clobber_r6(void);
534 void abi_test_clobber_r7(void);
535 void abi_test_clobber_r8(void);
536 void abi_test_clobber_r9(void);
537 void abi_test_clobber_r10(void);
538 void abi_test_clobber_r11(void);
539 void abi_test_clobber_r12(void);
540 // r13 is the thread pointer.
541 void abi_test_clobber_r14(void);
542 void abi_test_clobber_r15(void);
543 void abi_test_clobber_r16(void);
544 void abi_test_clobber_r17(void);
545 void abi_test_clobber_r18(void);
546 void abi_test_clobber_r19(void);
547 void abi_test_clobber_r20(void);
548 void abi_test_clobber_r21(void);
549 void abi_test_clobber_r22(void);
550 void abi_test_clobber_r23(void);
551 void abi_test_clobber_r24(void);
552 void abi_test_clobber_r25(void);
553 void abi_test_clobber_r26(void);
554 void abi_test_clobber_r27(void);
555 void abi_test_clobber_r28(void);
556 void abi_test_clobber_r29(void);
557 void abi_test_clobber_r30(void);
558 void abi_test_clobber_r31(void);
559
560 void abi_test_clobber_f0(void);
561 void abi_test_clobber_f1(void);
562 void abi_test_clobber_f2(void);
563 void abi_test_clobber_f3(void);
564 void abi_test_clobber_f4(void);
565 void abi_test_clobber_f5(void);
566 void abi_test_clobber_f6(void);
567 void abi_test_clobber_f7(void);
568 void abi_test_clobber_f8(void);
569 void abi_test_clobber_f9(void);
570 void abi_test_clobber_f10(void);
571 void abi_test_clobber_f11(void);
572 void abi_test_clobber_f12(void);
573 void abi_test_clobber_f13(void);
574 void abi_test_clobber_f14(void);
575 void abi_test_clobber_f15(void);
576 void abi_test_clobber_f16(void);
577 void abi_test_clobber_f17(void);
578 void abi_test_clobber_f18(void);
579 void abi_test_clobber_f19(void);
580 void abi_test_clobber_f20(void);
581 void abi_test_clobber_f21(void);
582 void abi_test_clobber_f22(void);
583 void abi_test_clobber_f23(void);
584 void abi_test_clobber_f24(void);
585 void abi_test_clobber_f25(void);
586 void abi_test_clobber_f26(void);
587 void abi_test_clobber_f27(void);
588 void abi_test_clobber_f28(void);
589 void abi_test_clobber_f29(void);
590 void abi_test_clobber_f30(void);
591 void abi_test_clobber_f31(void);
592
593 void abi_test_clobber_v0(void);
594 void abi_test_clobber_v1(void);
595 void abi_test_clobber_v2(void);
596 void abi_test_clobber_v3(void);
597 void abi_test_clobber_v4(void);
598 void abi_test_clobber_v5(void);
599 void abi_test_clobber_v6(void);
600 void abi_test_clobber_v7(void);
601 void abi_test_clobber_v8(void);
602 void abi_test_clobber_v9(void);
603 void abi_test_clobber_v10(void);
604 void abi_test_clobber_v11(void);
605 void abi_test_clobber_v12(void);
606 void abi_test_clobber_v13(void);
607 void abi_test_clobber_v14(void);
608 void abi_test_clobber_v15(void);
609 void abi_test_clobber_v16(void);
610 void abi_test_clobber_v17(void);
611 void abi_test_clobber_v18(void);
612 void abi_test_clobber_v19(void);
613 void abi_test_clobber_v20(void);
614 void abi_test_clobber_v21(void);
615 void abi_test_clobber_v22(void);
616 void abi_test_clobber_v23(void);
617 void abi_test_clobber_v24(void);
618 void abi_test_clobber_v25(void);
619 void abi_test_clobber_v26(void);
620 void abi_test_clobber_v27(void);
621 void abi_test_clobber_v28(void);
622 void abi_test_clobber_v29(void);
623 void abi_test_clobber_v30(void);
624 void abi_test_clobber_v31(void);
625
626 void abi_test_clobber_cr0(void);
627 void abi_test_clobber_cr1(void);
628 void abi_test_clobber_cr2(void);
629 void abi_test_clobber_cr3(void);
630 void abi_test_clobber_cr4(void);
631 void abi_test_clobber_cr5(void);
632 void abi_test_clobber_cr6(void);
633 void abi_test_clobber_cr7(void);
634
635 void abi_test_clobber_ctr(void);
636 void abi_test_clobber_lr(void);
637
638 } // extern "C"
639
TEST(ABITest,PPC64LE)640 TEST(ABITest, PPC64LE) {
641 // abi_test_trampoline hides unsaved registers from the caller, so we can
642 // safely call the abi_test_clobber_* functions below.
643 abi_test::internal::CallerState state;
644 RAND_bytes(reinterpret_cast<uint8_t *>(&state), sizeof(state));
645 CHECK_ABI_NO_UNWIND(abi_test_trampoline,
646 reinterpret_cast<crypto_word_t>(abi_test_clobber_r14),
647 &state, nullptr, 0, 0 /* no breakpoint */);
648
649 CHECK_ABI_NO_UNWIND(abi_test_clobber_r0);
650 CHECK_ABI_NO_UNWIND(abi_test_clobber_r2);
651 CHECK_ABI_NO_UNWIND(abi_test_clobber_r3);
652 CHECK_ABI_NO_UNWIND(abi_test_clobber_r4);
653 CHECK_ABI_NO_UNWIND(abi_test_clobber_r5);
654 CHECK_ABI_NO_UNWIND(abi_test_clobber_r6);
655 CHECK_ABI_NO_UNWIND(abi_test_clobber_r7);
656 CHECK_ABI_NO_UNWIND(abi_test_clobber_r8);
657 CHECK_ABI_NO_UNWIND(abi_test_clobber_r9);
658 CHECK_ABI_NO_UNWIND(abi_test_clobber_r10);
659 CHECK_ABI_NO_UNWIND(abi_test_clobber_r11);
660 CHECK_ABI_NO_UNWIND(abi_test_clobber_r12);
661 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r14),
662 "r14 was not restored after return");
663 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r15),
664 "r15 was not restored after return");
665 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r16),
666 "r16 was not restored after return");
667 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r17),
668 "r17 was not restored after return");
669 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r18),
670 "r18 was not restored after return");
671 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r19),
672 "r19 was not restored after return");
673 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r20),
674 "r20 was not restored after return");
675 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r21),
676 "r21 was not restored after return");
677 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r22),
678 "r22 was not restored after return");
679 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r23),
680 "r23 was not restored after return");
681 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r24),
682 "r24 was not restored after return");
683 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r25),
684 "r25 was not restored after return");
685 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r26),
686 "r26 was not restored after return");
687 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r27),
688 "r27 was not restored after return");
689 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r28),
690 "r28 was not restored after return");
691 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r29),
692 "r29 was not restored after return");
693 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r30),
694 "r30 was not restored after return");
695 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_r31),
696 "r31 was not restored after return");
697
698 CHECK_ABI_NO_UNWIND(abi_test_clobber_f0);
699 CHECK_ABI_NO_UNWIND(abi_test_clobber_f1);
700 CHECK_ABI_NO_UNWIND(abi_test_clobber_f2);
701 CHECK_ABI_NO_UNWIND(abi_test_clobber_f3);
702 CHECK_ABI_NO_UNWIND(abi_test_clobber_f4);
703 CHECK_ABI_NO_UNWIND(abi_test_clobber_f5);
704 CHECK_ABI_NO_UNWIND(abi_test_clobber_f6);
705 CHECK_ABI_NO_UNWIND(abi_test_clobber_f7);
706 CHECK_ABI_NO_UNWIND(abi_test_clobber_f8);
707 CHECK_ABI_NO_UNWIND(abi_test_clobber_f9);
708 CHECK_ABI_NO_UNWIND(abi_test_clobber_f10);
709 CHECK_ABI_NO_UNWIND(abi_test_clobber_f11);
710 CHECK_ABI_NO_UNWIND(abi_test_clobber_f12);
711 CHECK_ABI_NO_UNWIND(abi_test_clobber_f13);
712 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f14),
713 "f14 was not restored after return");
714 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f15),
715 "f15 was not restored after return");
716 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f16),
717 "f16 was not restored after return");
718 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f17),
719 "f17 was not restored after return");
720 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f18),
721 "f18 was not restored after return");
722 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f19),
723 "f19 was not restored after return");
724 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f20),
725 "f20 was not restored after return");
726 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f21),
727 "f21 was not restored after return");
728 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f22),
729 "f22 was not restored after return");
730 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f23),
731 "f23 was not restored after return");
732 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f24),
733 "f24 was not restored after return");
734 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f25),
735 "f25 was not restored after return");
736 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f26),
737 "f26 was not restored after return");
738 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f27),
739 "f27 was not restored after return");
740 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f28),
741 "f28 was not restored after return");
742 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f29),
743 "f29 was not restored after return");
744 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f30),
745 "f30 was not restored after return");
746 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_f31),
747 "f31 was not restored after return");
748
749 CHECK_ABI_NO_UNWIND(abi_test_clobber_v0);
750 CHECK_ABI_NO_UNWIND(abi_test_clobber_v1);
751 CHECK_ABI_NO_UNWIND(abi_test_clobber_v2);
752 CHECK_ABI_NO_UNWIND(abi_test_clobber_v3);
753 CHECK_ABI_NO_UNWIND(abi_test_clobber_v4);
754 CHECK_ABI_NO_UNWIND(abi_test_clobber_v5);
755 CHECK_ABI_NO_UNWIND(abi_test_clobber_v6);
756 CHECK_ABI_NO_UNWIND(abi_test_clobber_v7);
757 CHECK_ABI_NO_UNWIND(abi_test_clobber_v8);
758 CHECK_ABI_NO_UNWIND(abi_test_clobber_v9);
759 CHECK_ABI_NO_UNWIND(abi_test_clobber_v10);
760 CHECK_ABI_NO_UNWIND(abi_test_clobber_v11);
761 CHECK_ABI_NO_UNWIND(abi_test_clobber_v12);
762 CHECK_ABI_NO_UNWIND(abi_test_clobber_v13);
763 CHECK_ABI_NO_UNWIND(abi_test_clobber_v14);
764 CHECK_ABI_NO_UNWIND(abi_test_clobber_v15);
765 CHECK_ABI_NO_UNWIND(abi_test_clobber_v16);
766 CHECK_ABI_NO_UNWIND(abi_test_clobber_v17);
767 CHECK_ABI_NO_UNWIND(abi_test_clobber_v18);
768 CHECK_ABI_NO_UNWIND(abi_test_clobber_v19);
769 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v20),
770 "v20 was not restored after return");
771 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v21),
772 "v21 was not restored after return");
773 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v22),
774 "v22 was not restored after return");
775 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v23),
776 "v23 was not restored after return");
777 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v24),
778 "v24 was not restored after return");
779 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v25),
780 "v25 was not restored after return");
781 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v26),
782 "v26 was not restored after return");
783 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v27),
784 "v27 was not restored after return");
785 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v28),
786 "v28 was not restored after return");
787 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v29),
788 "v29 was not restored after return");
789 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v30),
790 "v30 was not restored after return");
791 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_v31),
792 "v31 was not restored after return");
793
794 CHECK_ABI_NO_UNWIND(abi_test_clobber_cr0);
795 CHECK_ABI_NO_UNWIND(abi_test_clobber_cr1);
796 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_cr2),
797 "cr was not restored after return");
798 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_cr3),
799 "cr was not restored after return");
800 EXPECT_NONFATAL_FAILURE(CHECK_ABI_NO_UNWIND(abi_test_clobber_cr4),
801 "cr was not restored after return");
802 CHECK_ABI_NO_UNWIND(abi_test_clobber_cr5);
803 CHECK_ABI_NO_UNWIND(abi_test_clobber_cr6);
804 CHECK_ABI_NO_UNWIND(abi_test_clobber_cr7);
805
806 CHECK_ABI_NO_UNWIND(abi_test_clobber_ctr);
807 CHECK_ABI_NO_UNWIND(abi_test_clobber_lr);
808 }
809 #endif // OPENSSL_PPC64LE && SUPPORTS_ABI_TEST
810