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mn10300: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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parent
0aa0203fb4
commit
b30c7d50af
2 changed files with 3 additions and 13 deletions
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@ -10,6 +10,7 @@ config MN10300
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select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
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select GENERIC_CLOCKEVENTS
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select MODULES_USE_ELF_RELA
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select GENERIC_SIGALTSTACK
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config AM33_2
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def_bool n
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@ -76,14 +76,6 @@ asmlinkage long sys_sigaction(int sig,
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return ret;
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}
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/*
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* set alternate signal stack syscall
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*/
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asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t *uoss)
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{
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return do_sigaltstack(uss, uoss, current_frame()->sp);
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}
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/*
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* do a signal return; undo the signal stack.
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*/
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@ -193,8 +185,7 @@ asmlinkage long sys_rt_sigreturn(void)
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if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0))
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goto badframe;
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if (do_sigaltstack(&frame->uc.uc_stack, NULL, current_frame()->sp) ==
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-EFAULT)
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if (restore_altstack(&frame->uc.uc_stack))
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goto badframe;
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return d0;
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@ -359,9 +350,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
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/* create the ucontext. */
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if (__put_user(0, &frame->uc.uc_flags) ||
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__put_user(0, &frame->uc.uc_link) ||
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__put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) ||
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__put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags) ||
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__put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size) ||
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__save_altstack(&frame->uc.uc_stack, regs->sp) ||
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setup_sigcontext(&frame->uc.uc_mcontext,
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&frame->fpuctx, regs, set->sig[0]) ||
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__copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)))
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