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Diffstat (limited to 'linux-user/signal.c')
-rw-r--r--linux-user/signal.c234
1 files changed, 0 insertions, 234 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 3f3fd05822..e943980ade 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -2364,240 +2364,6 @@ badframe:
return -TARGET_QEMU_ESIGRETURN;
}
-#elif defined(TARGET_NIOS2)
-
-#define MCONTEXT_VERSION 2
-
-struct target_sigcontext {
- int version;
- unsigned long gregs[32];
-};
-
-struct target_ucontext {
- abi_ulong tuc_flags;
- abi_ulong tuc_link;
- target_stack_t tuc_stack;
- struct target_sigcontext tuc_mcontext;
- target_sigset_t tuc_sigmask; /* mask last for extensibility */
-};
-
-struct target_rt_sigframe {
- struct target_siginfo info;
- struct target_ucontext uc;
-};
-
-static unsigned long sigsp(unsigned long sp, struct target_sigaction *ka)
-{
- if (unlikely((ka->sa_flags & SA_ONSTACK)) && !sas_ss_flags(sp)) {
-#ifdef CONFIG_STACK_GROWSUP
- return target_sigaltstack_used.ss_sp;
-#else
- return target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
-#endif
- }
- return sp;
-}
-
-static int rt_setup_ucontext(struct target_ucontext *uc, CPUNios2State *env)
-{
- unsigned long *gregs = uc->tuc_mcontext.gregs;
-
- __put_user(MCONTEXT_VERSION, &uc->tuc_mcontext.version);
- __put_user(env->regs[1], &gregs[0]);
- __put_user(env->regs[2], &gregs[1]);
- __put_user(env->regs[3], &gregs[2]);
- __put_user(env->regs[4], &gregs[3]);
- __put_user(env->regs[5], &gregs[4]);
- __put_user(env->regs[6], &gregs[5]);
- __put_user(env->regs[7], &gregs[6]);
- __put_user(env->regs[8], &gregs[7]);
- __put_user(env->regs[9], &gregs[8]);
- __put_user(env->regs[10], &gregs[9]);
- __put_user(env->regs[11], &gregs[10]);
- __put_user(env->regs[12], &gregs[11]);
- __put_user(env->regs[13], &gregs[12]);
- __put_user(env->regs[14], &gregs[13]);
- __put_user(env->regs[15], &gregs[14]);
- __put_user(env->regs[16], &gregs[15]);
- __put_user(env->regs[17], &gregs[16]);
- __put_user(env->regs[18], &gregs[17]);
- __put_user(env->regs[19], &gregs[18]);
- __put_user(env->regs[20], &gregs[19]);
- __put_user(env->regs[21], &gregs[20]);
- __put_user(env->regs[22], &gregs[21]);
- __put_user(env->regs[23], &gregs[22]);
- __put_user(env->regs[R_RA], &gregs[23]);
- __put_user(env->regs[R_FP], &gregs[24]);
- __put_user(env->regs[R_GP], &gregs[25]);
- __put_user(env->regs[R_EA], &gregs[27]);
- __put_user(env->regs[R_SP], &gregs[28]);
-
- return 0;
-}
-
-static int rt_restore_ucontext(CPUNios2State *env, struct target_ucontext *uc,
- int *pr2)
-{
- int temp;
- abi_ulong off, frame_addr = env->regs[R_SP];
- unsigned long *gregs = uc->tuc_mcontext.gregs;
- int err;
-
- /* Always make any pending restarted system calls return -EINTR */
- /* current->restart_block.fn = do_no_restart_syscall; */
-
- __get_user(temp, &uc->tuc_mcontext.version);
- if (temp != MCONTEXT_VERSION) {
- return 1;
- }
-
- /* restore passed registers */
- __get_user(env->regs[1], &gregs[0]);
- __get_user(env->regs[2], &gregs[1]);
- __get_user(env->regs[3], &gregs[2]);
- __get_user(env->regs[4], &gregs[3]);
- __get_user(env->regs[5], &gregs[4]);
- __get_user(env->regs[6], &gregs[5]);
- __get_user(env->regs[7], &gregs[6]);
- __get_user(env->regs[8], &gregs[7]);
- __get_user(env->regs[9], &gregs[8]);
- __get_user(env->regs[10], &gregs[9]);
- __get_user(env->regs[11], &gregs[10]);
- __get_user(env->regs[12], &gregs[11]);
- __get_user(env->regs[13], &gregs[12]);
- __get_user(env->regs[14], &gregs[13]);
- __get_user(env->regs[15], &gregs[14]);
- __get_user(env->regs[16], &gregs[15]);
- __get_user(env->regs[17], &gregs[16]);
- __get_user(env->regs[18], &gregs[17]);
- __get_user(env->regs[19], &gregs[18]);
- __get_user(env->regs[20], &gregs[19]);
- __get_user(env->regs[21], &gregs[20]);
- __get_user(env->regs[22], &gregs[21]);
- __get_user(env->regs[23], &gregs[22]);
- /* gregs[23] is handled below */
- /* Verify, should this be settable */
- __get_user(env->regs[R_FP], &gregs[24]);
- /* Verify, should this be settable */
- __get_user(env->regs[R_GP], &gregs[25]);
- /* Not really necessary no user settable bits */
- __get_user(temp, &gregs[26]);
- __get_user(env->regs[R_EA], &gregs[27]);
-
- __get_user(env->regs[R_RA], &gregs[23]);
- __get_user(env->regs[R_SP], &gregs[28]);
-
- off = offsetof(struct target_rt_sigframe, uc.tuc_stack);
- err = do_sigaltstack(frame_addr + off, 0, get_sp_from_cpustate(env));
- if (err == -EFAULT) {
- return 1;
- }
-
- *pr2 = env->regs[2];
- return 0;
-}
-
-static void *get_sigframe(struct target_sigaction *ka, CPUNios2State *env,
- size_t frame_size)
-{
- unsigned long usp;
-
- /* Default to using normal stack. */
- usp = env->regs[R_SP];
-
- /* This is the X/Open sanctioned signal stack switching. */
- usp = sigsp(usp, ka);
-
- /* Verify, is it 32 or 64 bit aligned */
- return (void *)((usp - frame_size) & -8UL);
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
- target_siginfo_t *info,
- target_sigset_t *set,
- CPUNios2State *env)
-{
- struct target_rt_sigframe *frame;
- int i, err = 0;
-
- frame = get_sigframe(ka, env, sizeof(*frame));
-
- if (ka->sa_flags & SA_SIGINFO) {
- tswap_siginfo(&frame->info, info);
- }
-
- /* Create the ucontext. */
- __put_user(0, &frame->uc.tuc_flags);
- __put_user(0, &frame->uc.tuc_link);
- __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
- __put_user(sas_ss_flags(env->regs[R_SP]), &frame->uc.tuc_stack.ss_flags);
- __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
- err |= rt_setup_ucontext(&frame->uc, env);
- for (i = 0; i < TARGET_NSIG_WORDS; i++) {
- __put_user((abi_ulong)set->sig[i],
- (abi_ulong *)&frame->uc.tuc_sigmask.sig[i]);
- }
-
- if (err) {
- goto give_sigsegv;
- }
-
- /* Set up to return from userspace; jump to fixed address sigreturn
- trampoline on kuser page. */
- env->regs[R_RA] = (unsigned long) (0x1044);
-
- /* Set up registers for signal handler */
- env->regs[R_SP] = (unsigned long) frame;
- env->regs[4] = (unsigned long) sig;
- env->regs[5] = (unsigned long) &frame->info;
- env->regs[6] = (unsigned long) &frame->uc;
- env->regs[R_EA] = (unsigned long) ka->_sa_handler;
- return;
-
-give_sigsegv:
- if (sig == TARGET_SIGSEGV) {
- ka->_sa_handler = TARGET_SIG_DFL;
- }
- force_sigsegv(sig);
- return;
-}
-
-long do_sigreturn(CPUNios2State *env)
-{
- trace_user_do_sigreturn(env, 0);
- fprintf(stderr, "do_sigreturn: not implemented\n");
- return -TARGET_ENOSYS;
-}
-
-long do_rt_sigreturn(CPUNios2State *env)
-{
- /* Verify, can we follow the stack back */
- abi_ulong frame_addr = env->regs[R_SP];
- struct target_rt_sigframe *frame;
- sigset_t set;
- int rval;
-
- if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
- goto badframe;
- }
-
- target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
- do_sigprocmask(SIG_SETMASK, &set, NULL);
-
- if (rt_restore_ucontext(env, &frame->uc, &rval)) {
- goto badframe;
- }
-
- unlock_user_struct(frame, frame_addr, 0);
- return rval;
-
-badframe:
- unlock_user_struct(frame, frame_addr, 0);
- force_sig(TARGET_SIGSEGV);
- return 0;
-}
-/* TARGET_NIOS2 */
-
#elif defined(TARGET_OPENRISC)
struct target_sigcontext {
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-25 21:09:58 +0000