1 // SPDX-License-Identifier: GPL-2.0
2 /* arch/sparc64/kernel/signal32.c
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
6 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
7 * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
8 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
11 #include <linux/sched.h>
12 #include <linux/kernel.h>
13 #include <linux/signal.h>
14 #include <linux/errno.h>
15 #include <linux/wait.h>
16 #include <linux/ptrace.h>
17 #include <linux/unistd.h>
19 #include <linux/tty.h>
20 #include <linux/binfmts.h>
21 #include <linux/compat.h>
22 #include <linux/bitops.h>
23 #include <linux/tracehook.h>
25 #include <linux/uaccess.h>
26 #include <asm/ptrace.h>
27 #include <asm/psrcompat.h>
28 #include <asm/fpumacro.h>
29 #include <asm/visasm.h>
30 #include <asm/compat_signal.h>
31 #include <asm/switch_to.h>
36 /* This magic should be in g_upper[0] for all upper parts
39 #define SIGINFO_EXTRA_V8PLUS_MAGIC 0x130e269
41 unsigned int g_upper[8];
42 unsigned int o_upper[8];
44 } siginfo_extra_v8plus_t;
46 struct signal_frame32 {
47 struct sparc_stackf32 ss;
49 /* __siginfo_fpu_t * */ u32 fpu_save;
50 unsigned int insns[2];
51 unsigned int extramask[_COMPAT_NSIG_WORDS - 1];
52 unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */
53 /* Only valid if (info.si_regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */
54 siginfo_extra_v8plus_t v8plus;
55 /* __siginfo_rwin_t * */u32 rwin_save;
56 } __attribute__((aligned(8)));
58 struct rt_signal_frame32 {
59 struct sparc_stackf32 ss;
60 compat_siginfo_t info;
61 struct pt_regs32 regs;
63 /* __siginfo_fpu_t * */ u32 fpu_save;
64 unsigned int insns[2];
66 unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */
67 /* Only valid if (regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */
68 siginfo_extra_v8plus_t v8plus;
69 /* __siginfo_rwin_t * */u32 rwin_save;
70 } __attribute__((aligned(8)));
72 /* Checks if the fp is valid. We always build signal frames which are
73 * 16-byte aligned, therefore we can always enforce that the restore
74 * frame has that property as well.
76 static bool invalid_frame_pointer(void __user *fp, int fplen)
78 if ((((unsigned long) fp) & 15) ||
79 ((unsigned long)fp) > 0x100000000ULL - fplen)
84 void do_sigreturn32(struct pt_regs *regs)
86 struct signal_frame32 __user *sf;
87 compat_uptr_t fpu_save;
88 compat_uptr_t rwin_save;
89 unsigned int psr, ufp;
95 /* Always make any pending restarted system calls return -EINTR */
96 current->restart_block.fn = do_no_restart_syscall;
98 synchronize_user_stack();
100 regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL;
101 sf = (struct signal_frame32 __user *) regs->u_regs[UREG_FP];
103 /* 1. Make sure we are not getting garbage from the user */
104 if (invalid_frame_pointer(sf, sizeof(*sf)))
107 if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
113 if (__get_user(pc, &sf->info.si_regs.pc) ||
114 __get_user(npc, &sf->info.si_regs.npc))
120 if (test_thread_flag(TIF_32BIT)) {
127 /* 2. Restore the state */
128 err = __get_user(regs->y, &sf->info.si_regs.y);
129 err |= __get_user(psr, &sf->info.si_regs.psr);
131 for (i = UREG_G1; i <= UREG_I7; i++)
132 err |= __get_user(regs->u_regs[i], &sf->info.si_regs.u_regs[i]);
133 if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) {
134 err |= __get_user(i, &sf->v8plus.g_upper[0]);
135 if (i == SIGINFO_EXTRA_V8PLUS_MAGIC) {
138 for (i = UREG_G1; i <= UREG_I7; i++)
139 err |= __get_user(((u32 *)regs->u_regs)[2*i], &sf->v8plus.g_upper[i]);
140 err |= __get_user(asi, &sf->v8plus.asi);
141 regs->tstate &= ~TSTATE_ASI;
142 regs->tstate |= ((asi & 0xffUL) << 24UL);
146 /* User can only change condition codes in %tstate. */
147 regs->tstate &= ~(TSTATE_ICC|TSTATE_XCC);
148 regs->tstate |= psr_to_tstate_icc(psr);
150 /* Prevent syscall restart. */
151 pt_regs_clear_syscall(regs);
153 err |= __get_user(fpu_save, &sf->fpu_save);
154 if (!err && fpu_save)
155 err |= restore_fpu_state(regs, compat_ptr(fpu_save));
156 err |= __get_user(rwin_save, &sf->rwin_save);
157 if (!err && rwin_save) {
158 if (restore_rwin_state(compat_ptr(rwin_save)))
161 err |= __get_user(seta.sig[0], &sf->info.si_mask);
162 err |= copy_from_user(&seta.sig[1], &sf->extramask,
163 (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int));
167 set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
168 set_current_blocked(&set);
175 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
177 struct rt_signal_frame32 __user *sf;
178 unsigned int psr, pc, npc, ufp;
179 compat_uptr_t fpu_save;
180 compat_uptr_t rwin_save;
184 /* Always make any pending restarted system calls return -EINTR */
185 current->restart_block.fn = do_no_restart_syscall;
187 synchronize_user_stack();
188 regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL;
189 sf = (struct rt_signal_frame32 __user *) regs->u_regs[UREG_FP];
191 /* 1. Make sure we are not getting garbage from the user */
192 if (invalid_frame_pointer(sf, sizeof(*sf)))
195 if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))
201 if (__get_user(pc, &sf->regs.pc) ||
202 __get_user(npc, &sf->regs.npc))
208 if (test_thread_flag(TIF_32BIT)) {
215 /* 2. Restore the state */
216 err = __get_user(regs->y, &sf->regs.y);
217 err |= __get_user(psr, &sf->regs.psr);
219 for (i = UREG_G1; i <= UREG_I7; i++)
220 err |= __get_user(regs->u_regs[i], &sf->regs.u_regs[i]);
221 if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) {
222 err |= __get_user(i, &sf->v8plus.g_upper[0]);
223 if (i == SIGINFO_EXTRA_V8PLUS_MAGIC) {
226 for (i = UREG_G1; i <= UREG_I7; i++)
227 err |= __get_user(((u32 *)regs->u_regs)[2*i], &sf->v8plus.g_upper[i]);
228 err |= __get_user(asi, &sf->v8plus.asi);
229 regs->tstate &= ~TSTATE_ASI;
230 regs->tstate |= ((asi & 0xffUL) << 24UL);
234 /* User can only change condition codes in %tstate. */
235 regs->tstate &= ~(TSTATE_ICC|TSTATE_XCC);
236 regs->tstate |= psr_to_tstate_icc(psr);
238 /* Prevent syscall restart. */
239 pt_regs_clear_syscall(regs);
241 err |= __get_user(fpu_save, &sf->fpu_save);
242 if (!err && fpu_save)
243 err |= restore_fpu_state(regs, compat_ptr(fpu_save));
244 err |= get_compat_sigset(&set, &sf->mask);
245 err |= compat_restore_altstack(&sf->stack);
249 err |= __get_user(rwin_save, &sf->rwin_save);
250 if (!err && rwin_save) {
251 if (restore_rwin_state(compat_ptr(rwin_save)))
255 set_current_blocked(&set);
261 static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize)
265 regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL;
266 sp = regs->u_regs[UREG_FP];
269 * If we are on the alternate signal stack and would overflow it, don't.
270 * Return an always-bogus address instead so we will die with SIGSEGV.
272 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize)))
273 return (void __user *) -1L;
275 /* This is the X/Open sanctioned signal stack switching. */
276 sp = sigsp(sp, ksig) - framesize;
278 /* Always align the stack frame. This handles two cases. First,
279 * sigaltstack need not be mindful of platform specific stack
280 * alignment. Second, if we took this signal because the stack
281 * is not aligned properly, we'd like to take the signal cleanly
286 return (void __user *) sp;
289 /* The I-cache flush instruction only works in the primary ASI, which
290 * right now is the nucleus, aka. kernel space.
292 * Therefore we have to kick the instructions out using the kernel
293 * side linear mapping of the physical address backing the user
296 static void flush_signal_insns(unsigned long address)
298 unsigned long pstate, paddr;
305 /* Commit all stores of the instructions we are about to flush. */
308 /* Disable cross-call reception. In this way even a very wide
309 * munmap() on another cpu can't tear down the page table
310 * hierarchy from underneath us, since that can't complete
311 * until the IPI tlb flush returns.
314 __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
315 __asm__ __volatile__("wrpr %0, %1, %%pstate"
316 : : "r" (pstate), "i" (PSTATE_IE));
318 pgdp = pgd_offset(current->mm, address);
321 p4dp = p4d_offset(pgdp, address);
324 pudp = pud_offset(p4dp, address);
327 pmdp = pmd_offset(pudp, address);
331 ptep = pte_offset_map(pmdp, address);
333 if (!pte_present(pte))
336 paddr = (unsigned long) page_address(pte_page(pte));
338 __asm__ __volatile__("flush %0 + %1"
341 "r" (address & (PAGE_SIZE - 1))
347 __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
351 static int setup_frame32(struct ksignal *ksig, struct pt_regs *regs,
354 struct signal_frame32 __user *sf;
359 compat_sigset_t seta;
361 /* 1. Make sure everything is clean */
362 synchronize_user_stack();
363 save_and_clear_fpu();
365 wsaved = get_thread_wsaved();
367 sigframe_size = sizeof(*sf);
368 if (current_thread_info()->fpsaved[0] & FPRS_FEF)
369 sigframe_size += sizeof(__siginfo_fpu_t);
371 sigframe_size += sizeof(__siginfo_rwin_t);
373 sf = (struct signal_frame32 __user *)
374 get_sigframe(ksig, regs, sigframe_size);
376 if (invalid_frame_pointer(sf, sigframe_size)) {
377 if (show_unhandled_signals)
378 pr_info("%s[%d] bad frame in setup_frame32: %08lx TPC %08lx O7 %08lx\n",
379 current->comm, current->pid, (unsigned long)sf,
380 regs->tpc, regs->u_regs[UREG_I7]);
381 force_sigsegv(ksig->sig);
387 /* 2. Save the current process state */
388 if (test_thread_flag(TIF_32BIT)) {
389 regs->tpc &= 0xffffffff;
390 regs->tnpc &= 0xffffffff;
392 err = put_user(regs->tpc, &sf->info.si_regs.pc);
393 err |= __put_user(regs->tnpc, &sf->info.si_regs.npc);
394 err |= __put_user(regs->y, &sf->info.si_regs.y);
395 psr = tstate_to_psr(regs->tstate);
396 if (current_thread_info()->fpsaved[0] & FPRS_FEF)
398 err |= __put_user(psr, &sf->info.si_regs.psr);
399 for (i = 0; i < 16; i++)
400 err |= __put_user(regs->u_regs[i], &sf->info.si_regs.u_regs[i]);
401 err |= __put_user(sizeof(siginfo_extra_v8plus_t), &sf->extra_size);
402 err |= __put_user(SIGINFO_EXTRA_V8PLUS_MAGIC, &sf->v8plus.g_upper[0]);
403 for (i = 1; i < 16; i++)
404 err |= __put_user(((u32 *)regs->u_regs)[2*i],
405 &sf->v8plus.g_upper[i]);
406 err |= __put_user((regs->tstate & TSTATE_ASI) >> 24UL,
410 __siginfo_fpu_t __user *fp = tail;
412 err |= save_fpu_state(regs, fp);
413 err |= __put_user((u64)fp, &sf->fpu_save);
415 err |= __put_user(0, &sf->fpu_save);
418 __siginfo_rwin_t __user *rwp = tail;
419 tail += sizeof(*rwp);
420 err |= save_rwin_state(wsaved, rwp);
421 err |= __put_user((u64)rwp, &sf->rwin_save);
422 set_thread_wsaved(0);
424 err |= __put_user(0, &sf->rwin_save);
427 /* If these change we need to know - assignments to seta relies on these sizes */
428 BUILD_BUG_ON(_NSIG_WORDS != 1);
429 BUILD_BUG_ON(_COMPAT_NSIG_WORDS != 2);
430 seta.sig[1] = (oldset->sig[0] >> 32);
431 seta.sig[0] = oldset->sig[0];
433 err |= __put_user(seta.sig[0], &sf->info.si_mask);
434 err |= __copy_to_user(sf->extramask, &seta.sig[1],
435 (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int));
438 err |= raw_copy_in_user((u32 __user *)sf,
439 (u32 __user *)(regs->u_regs[UREG_FP]),
440 sizeof(struct reg_window32));
442 struct reg_window *rp;
444 rp = ¤t_thread_info()->reg_window[wsaved - 1];
445 for (i = 0; i < 8; i++)
446 err |= __put_user(rp->locals[i], &sf->ss.locals[i]);
447 for (i = 0; i < 6; i++)
448 err |= __put_user(rp->ins[i], &sf->ss.ins[i]);
449 err |= __put_user(rp->ins[6], &sf->ss.fp);
450 err |= __put_user(rp->ins[7], &sf->ss.callers_pc);
455 /* 3. signal handler back-trampoline and parameters */
456 regs->u_regs[UREG_FP] = (unsigned long) sf;
457 regs->u_regs[UREG_I0] = ksig->sig;
458 regs->u_regs[UREG_I1] = (unsigned long) &sf->info;
459 regs->u_regs[UREG_I2] = (unsigned long) &sf->info;
461 /* 4. signal handler */
462 regs->tpc = (unsigned long) ksig->ka.sa.sa_handler;
463 regs->tnpc = (regs->tpc + 4);
464 if (test_thread_flag(TIF_32BIT)) {
465 regs->tpc &= 0xffffffff;
466 regs->tnpc &= 0xffffffff;
469 /* 5. return to kernel instructions */
470 if (ksig->ka.ka_restorer) {
471 regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer;
473 unsigned long address = ((unsigned long)&(sf->insns[0]));
475 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
477 err = __put_user(0x821020d8, &sf->insns[0]); /*mov __NR_sigreturn, %g1*/
478 err |= __put_user(0x91d02010, &sf->insns[1]); /*t 0x10*/
481 flush_signal_insns(address);
486 static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs,
489 struct rt_signal_frame32 __user *sf;
495 /* 1. Make sure everything is clean */
496 synchronize_user_stack();
497 save_and_clear_fpu();
499 wsaved = get_thread_wsaved();
501 sigframe_size = sizeof(*sf);
502 if (current_thread_info()->fpsaved[0] & FPRS_FEF)
503 sigframe_size += sizeof(__siginfo_fpu_t);
505 sigframe_size += sizeof(__siginfo_rwin_t);
507 sf = (struct rt_signal_frame32 __user *)
508 get_sigframe(ksig, regs, sigframe_size);
510 if (invalid_frame_pointer(sf, sigframe_size)) {
511 if (show_unhandled_signals)
512 pr_info("%s[%d] bad frame in setup_rt_frame32: %08lx TPC %08lx O7 %08lx\n",
513 current->comm, current->pid, (unsigned long)sf,
514 regs->tpc, regs->u_regs[UREG_I7]);
515 force_sigsegv(ksig->sig);
521 /* 2. Save the current process state */
522 if (test_thread_flag(TIF_32BIT)) {
523 regs->tpc &= 0xffffffff;
524 regs->tnpc &= 0xffffffff;
526 err = put_user(regs->tpc, &sf->regs.pc);
527 err |= __put_user(regs->tnpc, &sf->regs.npc);
528 err |= __put_user(regs->y, &sf->regs.y);
529 psr = tstate_to_psr(regs->tstate);
530 if (current_thread_info()->fpsaved[0] & FPRS_FEF)
532 err |= __put_user(psr, &sf->regs.psr);
533 for (i = 0; i < 16; i++)
534 err |= __put_user(regs->u_regs[i], &sf->regs.u_regs[i]);
535 err |= __put_user(sizeof(siginfo_extra_v8plus_t), &sf->extra_size);
536 err |= __put_user(SIGINFO_EXTRA_V8PLUS_MAGIC, &sf->v8plus.g_upper[0]);
537 for (i = 1; i < 16; i++)
538 err |= __put_user(((u32 *)regs->u_regs)[2*i],
539 &sf->v8plus.g_upper[i]);
540 err |= __put_user((regs->tstate & TSTATE_ASI) >> 24UL,
544 __siginfo_fpu_t __user *fp = tail;
546 err |= save_fpu_state(regs, fp);
547 err |= __put_user((u64)fp, &sf->fpu_save);
549 err |= __put_user(0, &sf->fpu_save);
552 __siginfo_rwin_t __user *rwp = tail;
553 tail += sizeof(*rwp);
554 err |= save_rwin_state(wsaved, rwp);
555 err |= __put_user((u64)rwp, &sf->rwin_save);
556 set_thread_wsaved(0);
558 err |= __put_user(0, &sf->rwin_save);
561 /* Update the siginfo structure. */
562 err |= copy_siginfo_to_user32(&sf->info, &ksig->info);
564 /* Setup sigaltstack */
565 err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
567 err |= put_compat_sigset(&sf->mask, oldset, sizeof(compat_sigset_t));
570 err |= raw_copy_in_user((u32 __user *)sf,
571 (u32 __user *)(regs->u_regs[UREG_FP]),
572 sizeof(struct reg_window32));
574 struct reg_window *rp;
576 rp = ¤t_thread_info()->reg_window[wsaved - 1];
577 for (i = 0; i < 8; i++)
578 err |= __put_user(rp->locals[i], &sf->ss.locals[i]);
579 for (i = 0; i < 6; i++)
580 err |= __put_user(rp->ins[i], &sf->ss.ins[i]);
581 err |= __put_user(rp->ins[6], &sf->ss.fp);
582 err |= __put_user(rp->ins[7], &sf->ss.callers_pc);
587 /* 3. signal handler back-trampoline and parameters */
588 regs->u_regs[UREG_FP] = (unsigned long) sf;
589 regs->u_regs[UREG_I0] = ksig->sig;
590 regs->u_regs[UREG_I1] = (unsigned long) &sf->info;
591 regs->u_regs[UREG_I2] = (unsigned long) &sf->regs;
593 /* 4. signal handler */
594 regs->tpc = (unsigned long) ksig->ka.sa.sa_handler;
595 regs->tnpc = (regs->tpc + 4);
596 if (test_thread_flag(TIF_32BIT)) {
597 regs->tpc &= 0xffffffff;
598 regs->tnpc &= 0xffffffff;
601 /* 5. return to kernel instructions */
602 if (ksig->ka.ka_restorer)
603 regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer;
605 unsigned long address = ((unsigned long)&(sf->insns[0]));
607 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
609 /* mov __NR_rt_sigreturn, %g1 */
610 err |= __put_user(0x82102065, &sf->insns[0]);
613 err |= __put_user(0x91d02010, &sf->insns[1]);
617 flush_signal_insns(address);
622 static inline void handle_signal32(struct ksignal *ksig,
623 struct pt_regs *regs)
625 sigset_t *oldset = sigmask_to_save();
628 if (ksig->ka.sa.sa_flags & SA_SIGINFO)
629 err = setup_rt_frame32(ksig, regs, oldset);
631 err = setup_frame32(ksig, regs, oldset);
633 signal_setup_done(err, ksig, 0);
636 static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
637 struct sigaction *sa)
639 switch (regs->u_regs[UREG_I0]) {
640 case ERESTART_RESTARTBLOCK:
642 no_system_call_restart:
643 regs->u_regs[UREG_I0] = EINTR;
644 regs->tstate |= TSTATE_ICARRY;
647 if (!(sa->sa_flags & SA_RESTART))
648 goto no_system_call_restart;
651 regs->u_regs[UREG_I0] = orig_i0;
657 /* Note that 'init' is a special process: it doesn't get signals it doesn't
658 * want to handle. Thus you cannot kill init even with a SIGKILL even by
661 void do_signal32(struct pt_regs * regs)
664 unsigned long orig_i0 = 0;
665 int restart_syscall = 0;
666 bool has_handler = get_signal(&ksig);
668 if (pt_regs_is_syscall(regs) &&
669 (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) {
671 orig_i0 = regs->u_regs[UREG_G6];
676 syscall_restart32(orig_i0, regs, &ksig.ka.sa);
677 handle_signal32(&ksig, regs);
679 if (restart_syscall) {
680 switch (regs->u_regs[UREG_I0]) {
684 /* replay the system call when we are done */
685 regs->u_regs[UREG_I0] = orig_i0;
688 pt_regs_clear_syscall(regs);
690 case ERESTART_RESTARTBLOCK:
691 regs->u_regs[UREG_G1] = __NR_restart_syscall;
694 pt_regs_clear_syscall(regs);
697 restore_saved_sigmask();
706 asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp)
708 struct sigstack32 __user *ssptr =
709 (struct sigstack32 __user *)((unsigned long)(u_ssptr));
710 struct sigstack32 __user *ossptr =
711 (struct sigstack32 __user *)((unsigned long)(u_ossptr));
714 /* First see if old state is wanted. */
716 if (put_user(current->sas_ss_sp + current->sas_ss_size,
717 &ossptr->the_stack) ||
718 __put_user(on_sig_stack(sp), &ossptr->cur_status))
722 /* Now see if we want to update the new state. */
726 if (get_user(ss_sp, &ssptr->the_stack))
729 /* If the current stack was set with sigaltstack, don't
730 * swap stacks while we are on it.
733 if (current->sas_ss_sp && on_sig_stack(sp))
736 /* Since we don't know the extent of the stack, and we don't
737 * track onstack-ness, but rather calculate it, we must
738 * presume a size. Ho hum this interface is lossy.
740 current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
741 current->sas_ss_size = SIGSTKSZ;
750 * Compile-time assertions for siginfo_t offsets. Check NSIG* as well, as
751 * changes likely come with new fields that should be added below.
753 static_assert(NSIGILL == 11);
754 static_assert(NSIGFPE == 15);
755 static_assert(NSIGSEGV == 9);
756 static_assert(NSIGBUS == 5);
757 static_assert(NSIGTRAP == 6);
758 static_assert(NSIGCHLD == 6);
759 static_assert(NSIGSYS == 2);
760 static_assert(sizeof(compat_siginfo_t) == 128);
761 static_assert(__alignof__(compat_siginfo_t) == 4);
762 static_assert(offsetof(compat_siginfo_t, si_signo) == 0x00);
763 static_assert(offsetof(compat_siginfo_t, si_errno) == 0x04);
764 static_assert(offsetof(compat_siginfo_t, si_code) == 0x08);
765 static_assert(offsetof(compat_siginfo_t, si_pid) == 0x0c);
766 static_assert(offsetof(compat_siginfo_t, si_uid) == 0x10);
767 static_assert(offsetof(compat_siginfo_t, si_tid) == 0x0c);
768 static_assert(offsetof(compat_siginfo_t, si_overrun) == 0x10);
769 static_assert(offsetof(compat_siginfo_t, si_status) == 0x14);
770 static_assert(offsetof(compat_siginfo_t, si_utime) == 0x18);
771 static_assert(offsetof(compat_siginfo_t, si_stime) == 0x1c);
772 static_assert(offsetof(compat_siginfo_t, si_value) == 0x14);
773 static_assert(offsetof(compat_siginfo_t, si_int) == 0x14);
774 static_assert(offsetof(compat_siginfo_t, si_ptr) == 0x14);
775 static_assert(offsetof(compat_siginfo_t, si_addr) == 0x0c);
776 static_assert(offsetof(compat_siginfo_t, si_trapno) == 0x10);
777 static_assert(offsetof(compat_siginfo_t, si_addr_lsb) == 0x10);
778 static_assert(offsetof(compat_siginfo_t, si_lower) == 0x14);
779 static_assert(offsetof(compat_siginfo_t, si_upper) == 0x18);
780 static_assert(offsetof(compat_siginfo_t, si_pkey) == 0x14);
781 static_assert(offsetof(compat_siginfo_t, si_perf_data) == 0x10);
782 static_assert(offsetof(compat_siginfo_t, si_perf_type) == 0x14);
783 static_assert(offsetof(compat_siginfo_t, si_perf_flags) == 0x18);
784 static_assert(offsetof(compat_siginfo_t, si_band) == 0x0c);
785 static_assert(offsetof(compat_siginfo_t, si_fd) == 0x10);