1 /* PLT trampolines. x86-64 version.
2 Copyright (C) 2009-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #ifndef SECTION
20 # define SECTION(p) p
21 #endif
22
23 .section SECTION(.text),"ax",@progbits
24 #ifdef _dl_runtime_resolve
25
26 # undef REGISTER_SAVE_AREA
27 # undef LOCAL_STORAGE_AREA
28 # undef BASE
29
30 # if (STATE_SAVE_ALIGNMENT % 16) != 0
31 # error STATE_SAVE_ALIGNMENT must be multiple of 16
32 # endif
33
34 # if (STATE_SAVE_OFFSET % STATE_SAVE_ALIGNMENT) != 0
35 # error STATE_SAVE_OFFSET must be multiple of STATE_SAVE_ALIGNMENT
36 # endif
37
38 # if DL_RUNTIME_RESOLVE_REALIGN_STACK
39 /* Local stack area before jumping to function address: RBX. */
40 # define LOCAL_STORAGE_AREA 8
41 # define BASE rbx
42 # ifdef USE_FXSAVE
43 /* Use fxsave to save XMM registers. */
44 # define REGISTER_SAVE_AREA (512 + STATE_SAVE_OFFSET)
45 # if (REGISTER_SAVE_AREA % 16) != 0
46 # error REGISTER_SAVE_AREA must be multiple of 16
47 # endif
48 # endif
49 # else
50 # ifndef USE_FXSAVE
51 # error USE_FXSAVE must be defined
52 # endif
53 /* Use fxsave to save XMM registers. */
54 # define REGISTER_SAVE_AREA (512 + STATE_SAVE_OFFSET + 8)
55 /* Local stack area before jumping to function address: All saved
56 registers. */
57 # define LOCAL_STORAGE_AREA REGISTER_SAVE_AREA
58 # define BASE rsp
59 # if (REGISTER_SAVE_AREA % 16) != 8
60 # error REGISTER_SAVE_AREA must be odd multiple of 8
61 # endif
62 # endif
63
64 .globl _dl_runtime_resolve
65 .hidden _dl_runtime_resolve
66 .type _dl_runtime_resolve, @function
67 .align 16
68 cfi_startproc
69 _dl_runtime_resolve:
70 cfi_adjust_cfa_offset(16) # Incorporate PLT
71 _CET_ENDBR
72 # if DL_RUNTIME_RESOLVE_REALIGN_STACK
73 # if LOCAL_STORAGE_AREA != 8
74 # error LOCAL_STORAGE_AREA must be 8
75 # endif
76 pushq %rbx # push subtracts stack by 8.
77 cfi_adjust_cfa_offset(8)
78 cfi_rel_offset(%rbx, 0)
79 mov %RSP_LP, %RBX_LP
80 cfi_def_cfa_register(%rbx)
81 and $-STATE_SAVE_ALIGNMENT, %RSP_LP
82 # endif
83 # ifdef REGISTER_SAVE_AREA
84 sub $REGISTER_SAVE_AREA, %RSP_LP
85 # if !DL_RUNTIME_RESOLVE_REALIGN_STACK
86 cfi_adjust_cfa_offset(REGISTER_SAVE_AREA)
87 # endif
88 # else
89 # Allocate stack space of the required size to save the state.
90 # if IS_IN (rtld)
91 sub _rtld_local_ro+RTLD_GLOBAL_RO_DL_X86_CPU_FEATURES_OFFSET+XSAVE_STATE_SIZE_OFFSET(%rip), %RSP_LP
92 # else
93 sub _dl_x86_cpu_features+XSAVE_STATE_SIZE_OFFSET(%rip), %RSP_LP
94 # endif
95 # endif
96 # Preserve registers otherwise clobbered.
97 movq %rax, REGISTER_SAVE_RAX(%rsp)
98 movq %rcx, REGISTER_SAVE_RCX(%rsp)
99 movq %rdx, REGISTER_SAVE_RDX(%rsp)
100 movq %rsi, REGISTER_SAVE_RSI(%rsp)
101 movq %rdi, REGISTER_SAVE_RDI(%rsp)
102 movq %r8, REGISTER_SAVE_R8(%rsp)
103 movq %r9, REGISTER_SAVE_R9(%rsp)
104 # ifdef USE_FXSAVE
105 fxsave STATE_SAVE_OFFSET(%rsp)
106 # else
107 movl $STATE_SAVE_MASK, %eax
108 xorl %edx, %edx
109 # Clear the XSAVE Header.
110 # ifdef USE_XSAVE
111 movq %rdx, (STATE_SAVE_OFFSET + 512)(%rsp)
112 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8)(%rsp)
113 # endif
114 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 2)(%rsp)
115 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 3)(%rsp)
116 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 4)(%rsp)
117 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 5)(%rsp)
118 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 6)(%rsp)
119 movq %rdx, (STATE_SAVE_OFFSET + 512 + 8 * 7)(%rsp)
120 # ifdef USE_XSAVE
121 xsave STATE_SAVE_OFFSET(%rsp)
122 # else
123 xsavec STATE_SAVE_OFFSET(%rsp)
124 # endif
125 # endif
126 # Copy args pushed by PLT in register.
127 # %rdi: link_map, %rsi: reloc_index
128 mov (LOCAL_STORAGE_AREA + 8)(%BASE), %RSI_LP
129 mov LOCAL_STORAGE_AREA(%BASE), %RDI_LP
130 call _dl_fixup # Call resolver.
131 mov %RAX_LP, %R11_LP # Save return value
132 # Get register content back.
133 # ifdef USE_FXSAVE
134 fxrstor STATE_SAVE_OFFSET(%rsp)
135 # else
136 movl $STATE_SAVE_MASK, %eax
137 xorl %edx, %edx
138 xrstor STATE_SAVE_OFFSET(%rsp)
139 # endif
140 movq REGISTER_SAVE_R9(%rsp), %r9
141 movq REGISTER_SAVE_R8(%rsp), %r8
142 movq REGISTER_SAVE_RDI(%rsp), %rdi
143 movq REGISTER_SAVE_RSI(%rsp), %rsi
144 movq REGISTER_SAVE_RDX(%rsp), %rdx
145 movq REGISTER_SAVE_RCX(%rsp), %rcx
146 movq REGISTER_SAVE_RAX(%rsp), %rax
147 # if DL_RUNTIME_RESOLVE_REALIGN_STACK
148 mov %RBX_LP, %RSP_LP
149 cfi_def_cfa_register(%rsp)
150 movq (%rsp), %rbx
151 cfi_restore(%rbx)
152 # endif
153 # Adjust stack(PLT did 2 pushes)
154 add $(LOCAL_STORAGE_AREA + 16), %RSP_LP
155 cfi_adjust_cfa_offset(-(LOCAL_STORAGE_AREA + 16))
156 jmp *%r11 # Jump to function address.
157 cfi_endproc
158 .size _dl_runtime_resolve, .-_dl_runtime_resolve
159 #endif
160
161
162 #if !defined PROF && defined _dl_runtime_profile
163 # if (LR_VECTOR_OFFSET % VEC_SIZE) != 0
164 # error LR_VECTOR_OFFSET must be multiple of VEC_SIZE
165 # endif
166
167 .globl _dl_runtime_profile
168 .hidden _dl_runtime_profile
169 .type _dl_runtime_profile, @function
170 .align 16
171 _dl_runtime_profile:
172 cfi_startproc
173 cfi_adjust_cfa_offset(16) # Incorporate PLT
174 _CET_ENDBR
175 /* The La_x86_64_regs data structure pointed to by the
176 fourth parameter must be VEC_SIZE-byte aligned. This must
177 be explicitly enforced. We have the set up a dynamically
178 sized stack frame. %rbx points to the top half which
179 has a fixed size and preserves the original stack pointer. */
180
181 sub $32, %RSP_LP # Allocate the local storage.
182 cfi_adjust_cfa_offset(32)
183 movq %rbx, (%rsp)
184 cfi_rel_offset(%rbx, 0)
185
186 /* On the stack:
187 56(%rbx) parameter #1
188 48(%rbx) return address
189
190 40(%rbx) reloc index
191 32(%rbx) link_map
192
193 24(%rbx) La_x86_64_regs pointer
194 16(%rbx) framesize
195 8(%rbx) rax
196 (%rbx) rbx
197 */
198
199 movq %rax, 8(%rsp)
200 mov %RSP_LP, %RBX_LP
201 cfi_def_cfa_register(%rbx)
202
203 /* Actively align the La_x86_64_regs structure. */
204 and $-VEC_SIZE, %RSP_LP
205 /* sizeof(La_x86_64_regs). Need extra space for 8 SSE registers
206 to detect if any xmm0-xmm7 registers are changed by audit
207 module. */
208 sub $(LR_SIZE + XMM_SIZE*8), %RSP_LP
209 movq %rsp, 24(%rbx)
210
211 /* Fill the La_x86_64_regs structure. */
212 movq %rdx, LR_RDX_OFFSET(%rsp)
213 movq %r8, LR_R8_OFFSET(%rsp)
214 movq %r9, LR_R9_OFFSET(%rsp)
215 movq %rcx, LR_RCX_OFFSET(%rsp)
216 movq %rsi, LR_RSI_OFFSET(%rsp)
217 movq %rdi, LR_RDI_OFFSET(%rsp)
218 movq %rbp, LR_RBP_OFFSET(%rsp)
219
220 lea 48(%rbx), %RAX_LP
221 movq %rax, LR_RSP_OFFSET(%rsp)
222
223 /* We always store the XMM registers even if AVX is available.
224 This is to provide backward binary compatibility for existing
225 audit modules. */
226 VMOVA %xmm0, (LR_XMM_OFFSET + XMM_SIZE*0)(%rsp)
227 VMOVA %xmm1, (LR_XMM_OFFSET + XMM_SIZE*1)(%rsp)
228 VMOVA %xmm2, (LR_XMM_OFFSET + XMM_SIZE*2)(%rsp)
229 VMOVA %xmm3, (LR_XMM_OFFSET + XMM_SIZE*3)(%rsp)
230 VMOVA %xmm4, (LR_XMM_OFFSET + XMM_SIZE*4)(%rsp)
231 VMOVA %xmm5, (LR_XMM_OFFSET + XMM_SIZE*5)(%rsp)
232 VMOVA %xmm6, (LR_XMM_OFFSET + XMM_SIZE*6)(%rsp)
233 VMOVA %xmm7, (LR_XMM_OFFSET + XMM_SIZE*7)(%rsp)
234
235 # ifdef RESTORE_AVX
236 /* This is to support AVX audit modules. */
237 VMOVA %VEC(0), (LR_VECTOR_OFFSET + VECTOR_SIZE*0)(%rsp)
238 VMOVA %VEC(1), (LR_VECTOR_OFFSET + VECTOR_SIZE*1)(%rsp)
239 VMOVA %VEC(2), (LR_VECTOR_OFFSET + VECTOR_SIZE*2)(%rsp)
240 VMOVA %VEC(3), (LR_VECTOR_OFFSET + VECTOR_SIZE*3)(%rsp)
241 VMOVA %VEC(4), (LR_VECTOR_OFFSET + VECTOR_SIZE*4)(%rsp)
242 VMOVA %VEC(5), (LR_VECTOR_OFFSET + VECTOR_SIZE*5)(%rsp)
243 VMOVA %VEC(6), (LR_VECTOR_OFFSET + VECTOR_SIZE*6)(%rsp)
244 VMOVA %VEC(7), (LR_VECTOR_OFFSET + VECTOR_SIZE*7)(%rsp)
245
246 /* Save xmm0-xmm7 registers to detect if any of them are
247 changed by audit module. */
248 vmovdqa %xmm0, (LR_SIZE + XMM_SIZE*0)(%rsp)
249 vmovdqa %xmm1, (LR_SIZE + XMM_SIZE*1)(%rsp)
250 vmovdqa %xmm2, (LR_SIZE + XMM_SIZE*2)(%rsp)
251 vmovdqa %xmm3, (LR_SIZE + XMM_SIZE*3)(%rsp)
252 vmovdqa %xmm4, (LR_SIZE + XMM_SIZE*4)(%rsp)
253 vmovdqa %xmm5, (LR_SIZE + XMM_SIZE*5)(%rsp)
254 vmovdqa %xmm6, (LR_SIZE + XMM_SIZE*6)(%rsp)
255 vmovdqa %xmm7, (LR_SIZE + XMM_SIZE*7)(%rsp)
256 # endif
257
258 mov %RSP_LP, %RCX_LP # La_x86_64_regs pointer to %rcx.
259 mov 48(%rbx), %RDX_LP # Load return address if needed.
260 mov 40(%rbx), %RSI_LP # Copy args pushed by PLT in register.
261 mov 32(%rbx), %RDI_LP # %rdi: link_map, %rsi: reloc_index
262 lea 16(%rbx), %R8_LP # Address of framesize
263 call _dl_profile_fixup # Call resolver.
264
265 mov %RAX_LP, %R11_LP # Save return value.
266
267 movq 8(%rbx), %rax # Get back register content.
268 movq LR_RDX_OFFSET(%rsp), %rdx
269 movq LR_R8_OFFSET(%rsp), %r8
270 movq LR_R9_OFFSET(%rsp), %r9
271
272 VMOVA (LR_XMM_OFFSET + XMM_SIZE*0)(%rsp), %xmm0
273 VMOVA (LR_XMM_OFFSET + XMM_SIZE*1)(%rsp), %xmm1
274 VMOVA (LR_XMM_OFFSET + XMM_SIZE*2)(%rsp), %xmm2
275 VMOVA (LR_XMM_OFFSET + XMM_SIZE*3)(%rsp), %xmm3
276 VMOVA (LR_XMM_OFFSET + XMM_SIZE*4)(%rsp), %xmm4
277 VMOVA (LR_XMM_OFFSET + XMM_SIZE*5)(%rsp), %xmm5
278 VMOVA (LR_XMM_OFFSET + XMM_SIZE*6)(%rsp), %xmm6
279 VMOVA (LR_XMM_OFFSET + XMM_SIZE*7)(%rsp), %xmm7
280
281 # ifdef RESTORE_AVX
282 /* Check if any xmm0-xmm7 registers are changed by audit
283 module. */
284 vpcmpeqb (LR_SIZE)(%rsp), %xmm0, %xmm8
285 vpmovmskb %xmm8, %esi
286 incw %si
287 je 2f
288 vmovdqa %xmm0, (LR_VECTOR_OFFSET)(%rsp)
289 jmp 1f
290 2: VMOVA (LR_VECTOR_OFFSET)(%rsp), %VEC(0)
291 vmovdqa %xmm0, (LR_XMM_OFFSET)(%rsp)
292
293 1: vpcmpeqb (LR_SIZE + XMM_SIZE)(%rsp), %xmm1, %xmm8
294 vpmovmskb %xmm8, %esi
295 incw %si
296 je 2f
297 vmovdqa %xmm1, (LR_VECTOR_OFFSET + VECTOR_SIZE)(%rsp)
298 jmp 1f
299 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE)(%rsp), %VEC(1)
300 vmovdqa %xmm1, (LR_XMM_OFFSET + XMM_SIZE)(%rsp)
301
302 1: vpcmpeqb (LR_SIZE + XMM_SIZE*2)(%rsp), %xmm2, %xmm8
303 vpmovmskb %xmm8, %esi
304 incw %si
305 je 2f
306 vmovdqa %xmm2, (LR_VECTOR_OFFSET + VECTOR_SIZE*2)(%rsp)
307 jmp 1f
308 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*2)(%rsp), %VEC(2)
309 vmovdqa %xmm2, (LR_XMM_OFFSET + XMM_SIZE*2)(%rsp)
310
311 1: vpcmpeqb (LR_SIZE + XMM_SIZE*3)(%rsp), %xmm3, %xmm8
312 vpmovmskb %xmm8, %esi
313 incw %si
314 je 2f
315 vmovdqa %xmm3, (LR_VECTOR_OFFSET + VECTOR_SIZE*3)(%rsp)
316 jmp 1f
317 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*3)(%rsp), %VEC(3)
318 vmovdqa %xmm3, (LR_XMM_OFFSET + XMM_SIZE*3)(%rsp)
319
320 1: vpcmpeqb (LR_SIZE + XMM_SIZE*4)(%rsp), %xmm4, %xmm8
321 vpmovmskb %xmm8, %esi
322 incw %si
323 je 2f
324 vmovdqa %xmm4, (LR_VECTOR_OFFSET + VECTOR_SIZE*4)(%rsp)
325 jmp 1f
326 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*4)(%rsp), %VEC(4)
327 vmovdqa %xmm4, (LR_XMM_OFFSET + XMM_SIZE*4)(%rsp)
328
329 1: vpcmpeqb (LR_SIZE + XMM_SIZE*5)(%rsp), %xmm5, %xmm8
330 vpmovmskb %xmm8, %esi
331 incw %si
332 je 2f
333 vmovdqa %xmm5, (LR_VECTOR_OFFSET + VECTOR_SIZE*5)(%rsp)
334 jmp 1f
335 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*5)(%rsp), %VEC(5)
336 vmovdqa %xmm5, (LR_XMM_OFFSET + XMM_SIZE*5)(%rsp)
337
338 1: vpcmpeqb (LR_SIZE + XMM_SIZE*6)(%rsp), %xmm6, %xmm8
339 vpmovmskb %xmm8, %esi
340 incw %si
341 je 2f
342 vmovdqa %xmm6, (LR_VECTOR_OFFSET + VECTOR_SIZE*6)(%rsp)
343 jmp 1f
344 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*6)(%rsp), %VEC(6)
345 vmovdqa %xmm6, (LR_XMM_OFFSET + XMM_SIZE*6)(%rsp)
346
347 1: vpcmpeqb (LR_SIZE + XMM_SIZE*7)(%rsp), %xmm7, %xmm8
348 vpmovmskb %xmm8, %esi
349 incw %si
350 je 2f
351 vmovdqa %xmm7, (LR_VECTOR_OFFSET + VECTOR_SIZE*7)(%rsp)
352 jmp 1f
353 2: VMOVA (LR_VECTOR_OFFSET + VECTOR_SIZE*7)(%rsp), %VEC(7)
354 vmovdqa %xmm7, (LR_XMM_OFFSET + XMM_SIZE*7)(%rsp)
355
356 1:
357 # endif
358
359 mov 16(%rbx), %RCX_LP # Anything in framesize?
360 test %RCX_LP, %RCX_LP
361 jns 3f
362
363 /* There's nothing in the frame size, so there
364 will be no call to the _dl_audit_pltexit. */
365
366 /* Get back registers content. */
367 movq LR_RCX_OFFSET(%rsp), %rcx
368 movq LR_RSI_OFFSET(%rsp), %rsi
369 movq LR_RDI_OFFSET(%rsp), %rdi
370
371 mov %RBX_LP, %RSP_LP
372 movq (%rsp), %rbx
373 cfi_restore(%rbx)
374 cfi_def_cfa_register(%rsp)
375
376 add $48, %RSP_LP # Adjust the stack to the return value
377 # (eats the reloc index and link_map)
378 cfi_adjust_cfa_offset(-48)
379 jmp *%r11 # Jump to function address.
380
381 3:
382 cfi_adjust_cfa_offset(48)
383 cfi_rel_offset(%rbx, 0)
384 cfi_def_cfa_register(%rbx)
385
386 /* At this point we need to prepare new stack for the function
387 which has to be called. We copy the original stack to a
388 temporary buffer of the size specified by the 'framesize'
389 returned from _dl_profile_fixup */
390
391 lea LR_RSP_OFFSET(%rbx), %RSI_LP # stack
392 add $8, %RCX_LP
393 and $-16, %RCX_LP
394 sub %RCX_LP, %RSP_LP
395 mov %RSP_LP, %RDI_LP
396 rep movsb
397
398 movq 24(%rdi), %rcx # Get back register content.
399 movq 32(%rdi), %rsi
400 movq 40(%rdi), %rdi
401
402 call *%r11
403
404 mov 24(%rbx), %RSP_LP # Drop the copied stack content
405
406 /* Now we have to prepare the La_x86_64_retval structure for the
407 _dl_audit_pltexit. The La_x86_64_regs is being pointed by rsp now,
408 so we just need to allocate the sizeof(La_x86_64_retval) space on
409 the stack, since the alignment has already been taken care of. */
410 # ifdef RESTORE_AVX
411 /* sizeof(La_x86_64_retval). Need extra space for 2 SSE
412 registers to detect if xmm0/xmm1 registers are changed
413 by audit module. Since rsp is aligned to VEC_SIZE, we
414 need to make sure that the address of La_x86_64_retval +
415 LRV_VECTOR0_OFFSET is aligned to VEC_SIZE. */
416 # define LRV_SPACE (LRV_SIZE + XMM_SIZE*2)
417 # define LRV_MISALIGNED ((LRV_SIZE + LRV_VECTOR0_OFFSET) & (VEC_SIZE - 1))
418 # if LRV_MISALIGNED == 0
419 sub $LRV_SPACE, %RSP_LP
420 # else
421 sub $(LRV_SPACE + VEC_SIZE - LRV_MISALIGNED), %RSP_LP
422 # endif
423 # else
424 sub $LRV_SIZE, %RSP_LP # sizeof(La_x86_64_retval)
425 # endif
426 mov %RSP_LP, %RCX_LP # La_x86_64_retval argument to %rcx.
427
428 /* Fill in the La_x86_64_retval structure. */
429 movq %rax, LRV_RAX_OFFSET(%rcx)
430 movq %rdx, LRV_RDX_OFFSET(%rcx)
431
432 VMOVA %xmm0, LRV_XMM0_OFFSET(%rcx)
433 VMOVA %xmm1, LRV_XMM1_OFFSET(%rcx)
434
435 # ifdef RESTORE_AVX
436 /* This is to support AVX audit modules. */
437 VMOVA %VEC(0), LRV_VECTOR0_OFFSET(%rcx)
438 VMOVA %VEC(1), LRV_VECTOR1_OFFSET(%rcx)
439
440 /* Save xmm0/xmm1 registers to detect if they are changed
441 by audit module. */
442 vmovdqa %xmm0, (LRV_SIZE + XMM_SIZE*0)(%rcx)
443 vmovdqa %xmm1, (LRV_SIZE + XMM_SIZE*1)(%rcx)
444 # endif
445
446 fstpt LRV_ST0_OFFSET(%rcx)
447 fstpt LRV_ST1_OFFSET(%rcx)
448
449 movq 24(%rbx), %rdx # La_x86_64_regs argument to %rdx.
450 movq 40(%rbx), %rsi # Copy args pushed by PLT in register.
451 movq 32(%rbx), %rdi # %rdi: link_map, %rsi: reloc_index
452 call _dl_audit_pltexit
453
454 /* Restore return registers. */
455 movq LRV_RAX_OFFSET(%rsp), %rax
456 movq LRV_RDX_OFFSET(%rsp), %rdx
457
458 VMOVA LRV_XMM0_OFFSET(%rsp), %xmm0
459 VMOVA LRV_XMM1_OFFSET(%rsp), %xmm1
460
461 # ifdef RESTORE_AVX
462 /* Check if xmm0/xmm1 registers are changed by audit module. */
463 vpcmpeqb (LRV_SIZE)(%rsp), %xmm0, %xmm2
464 vpmovmskb %xmm2, %esi
465 incw %si
466 jne 1f
467 VMOVA LRV_VECTOR0_OFFSET(%rsp), %VEC(0)
468
469 1: vpcmpeqb (LRV_SIZE + XMM_SIZE)(%rsp), %xmm1, %xmm2
470 vpmovmskb %xmm2, %esi
471 incw %si
472 jne 1f
473 VMOVA LRV_VECTOR1_OFFSET(%rsp), %VEC(1)
474
475 1:
476 # endif
477
478 fldt LRV_ST1_OFFSET(%rsp)
479 fldt LRV_ST0_OFFSET(%rsp)
480
481 mov %RBX_LP, %RSP_LP
482 movq (%rsp), %rbx
483 cfi_restore(%rbx)
484 cfi_def_cfa_register(%rsp)
485
486 add $48, %RSP_LP # Adjust the stack to the return value
487 # (eats the reloc index and link_map)
488 cfi_adjust_cfa_offset(-48)
489 retq
490
491 cfi_endproc
492 .size _dl_runtime_profile, .-_dl_runtime_profile
493 #endif