diff --git a/[refs] b/[refs] index 9713e534c191..acbaf4840bc0 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 33f9f78eec7e332dac6bee9cf66cd2bd435b7419 +refs/heads/master: faec5a96a024c1256b289253f3609b4a5f6f3576 diff --git a/trunk/arch/mn10300/Kconfig b/trunk/arch/mn10300/Kconfig index 12bf06f9abe5..e70001cfa05b 100644 --- a/trunk/arch/mn10300/Kconfig +++ b/trunk/arch/mn10300/Kconfig @@ -10,9 +10,6 @@ config MN10300 select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA - select GENERIC_SIGALTSTACK - select OLD_SIGSUSPEND3 - select OLD_SIGACTION config AM33_2 def_bool n diff --git a/trunk/arch/mn10300/include/asm/signal.h b/trunk/arch/mn10300/include/asm/signal.h index 214ff5e9fe60..288ade5ec94e 100644 --- a/trunk/arch/mn10300/include/asm/signal.h +++ b/trunk/arch/mn10300/include/asm/signal.h @@ -26,6 +26,13 @@ typedef struct { unsigned long sig[_NSIG_WORDS]; } sigset_t; +struct old_sigaction { + __sighandler_t sa_handler; + old_sigset_t sa_mask; + unsigned long sa_flags; + __sigrestore_t sa_restorer; +}; + #define __ARCH_HAS_SA_RESTORER #include diff --git a/trunk/arch/mn10300/kernel/signal.c b/trunk/arch/mn10300/kernel/signal.c index 9dfac5cd16e6..f570b3085ef9 100644 --- a/trunk/arch/mn10300/kernel/signal.c +++ b/trunk/arch/mn10300/kernel/signal.c @@ -31,6 +31,59 @@ #define DEBUG_SIG 0 +/* + * atomically swap in the new signal mask, and wait for a signal. + */ +asmlinkage long sys_sigsuspend(int history0, int history1, old_sigset_t mask) +{ + sigset_t blocked; + siginitset(&blocked, mask); + return sigsuspend(&blocked); +} + +/* + * set signal action syscall + */ +asmlinkage long sys_sigaction(int sig, + const struct old_sigaction __user *act, + struct old_sigaction __user *oact) +{ + struct k_sigaction new_ka, old_ka; + int ret; + + if (act) { + old_sigset_t mask; + if (verify_area(VERIFY_READ, act, sizeof(*act)) || + __get_user(new_ka.sa.sa_handler, &act->sa_handler) || + __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || + __get_user(new_ka.sa.sa_flags, &act->sa_flags) || + __get_user(mask, &act->sa_mask)) + return -EFAULT; + siginitset(&new_ka.sa.sa_mask, mask); + } + + ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); + + if (!ret && oact) { + if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) || + __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || + __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || + __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) + return -EFAULT; + } + + return ret; +} + +/* + * set alternate signal stack syscall + */ +asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t *uoss) +{ + return do_sigaltstack(uss, uoss, current_frame()->sp); +} + /* * do a signal return; undo the signal stack. */ @@ -140,7 +193,8 @@ asmlinkage long sys_rt_sigreturn(void) if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0)) goto badframe; - if (restore_altstack(&frame->uc.uc_stack)) + if (do_sigaltstack(&frame->uc.uc_stack, NULL, current_frame()->sp) == + -EFAULT) goto badframe; return d0; @@ -305,7 +359,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* create the ucontext. */ if (__put_user(0, &frame->uc.uc_flags) || __put_user(0, &frame->uc.uc_link) || - __save_altstack(&frame->uc.uc_stack, regs->sp) || + __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) || + __put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags) || + __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size) || setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpuctx, regs, set->sig[0]) || __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set))) diff --git a/trunk/arch/openrisc/Kconfig b/trunk/arch/openrisc/Kconfig index 0ac66f67521f..d3632eb98a1c 100644 --- a/trunk/arch/openrisc/Kconfig +++ b/trunk/arch/openrisc/Kconfig @@ -22,6 +22,7 @@ config OPENRISC select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK config MMU def_bool y diff --git a/trunk/arch/openrisc/kernel/entry.S b/trunk/arch/openrisc/kernel/entry.S index 5e5b30601bbf..54afd0a129fe 100644 --- a/trunk/arch/openrisc/kernel/entry.S +++ b/trunk/arch/openrisc/kernel/entry.S @@ -1083,10 +1083,6 @@ ENTRY(__sys_fork) l.j _fork_save_extra_regs_and_call l.addi r3,r1,0 -ENTRY(sys_sigaltstack) - l.j _sys_sigaltstack - l.addi r5,r1,0 - ENTRY(sys_rt_sigreturn) l.j _sys_rt_sigreturn l.addi r3,r1,0 diff --git a/trunk/arch/openrisc/kernel/signal.c b/trunk/arch/openrisc/kernel/signal.c index ddedc8a77861..ae167f7e081a 100644 --- a/trunk/arch/openrisc/kernel/signal.c +++ b/trunk/arch/openrisc/kernel/signal.c @@ -33,12 +33,6 @@ #define DEBUG_SIG 0 -asmlinkage long -_sys_sigaltstack(const stack_t *uss, stack_t *uoss, struct pt_regs *regs) -{ - return do_sigaltstack(uss, uoss, regs->sp); -} - struct rt_sigframe { struct siginfo *pinfo; void *puc; @@ -103,9 +97,7 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return regs->gpr[11]; @@ -205,10 +197,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext)); err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, regs->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));