From 92a3ce4a1e0047215aa0a0b30cc333bd32b866a8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 25 Nov 2012 21:20:05 -0500 Subject: consolidate declarations of k_sigaction Only alpha and sparc are unusual - they have ka_restorer in it. And nobody needs that exposed to userland. Signed-off-by: Al Viro --- arch/mn10300/include/asm/signal.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h index d280e9780793..d6f06540acb0 100644 --- a/arch/mn10300/include/asm/signal.h +++ b/arch/mn10300/include/asm/signal.h @@ -40,9 +40,6 @@ struct sigaction { sigset_t sa_mask; /* mask last for extensibility */ }; -struct k_sigaction { - struct sigaction sa; -}; #include #endif /* _ASM_SIGNAL_H */ -- cgit v1.2.3 From 574c4866e33d648520a8bd5bf6f573ea6e554e88 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 25 Nov 2012 22:24:19 -0500 Subject: consolidate kernel-side struct sigaction declarations Signed-off-by: Al Viro --- arch/mn10300/include/asm/signal.h | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h index d6f06540acb0..288ade5ec94e 100644 --- a/arch/mn10300/include/asm/signal.h +++ b/arch/mn10300/include/asm/signal.h @@ -33,12 +33,7 @@ struct old_sigaction { __sigrestore_t sa_restorer; }; -struct sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - __sigrestore_t sa_restorer; - sigset_t sa_mask; /* mask last for extensibility */ -}; +#define __ARCH_HAS_SA_RESTORER #include -- cgit v1.2.3 From b30c7d50af95f7450f877e8172a2341785bce5ab Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 23 Dec 2012 03:17:06 -0500 Subject: mn10300: switch to generic sigaltstack Signed-off-by: Al Viro --- arch/mn10300/Kconfig | 1 + arch/mn10300/kernel/signal.c | 15 ++------------- 2 files changed, 3 insertions(+), 13 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index e70001cfa05b..cb5022029606 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -10,6 +10,7 @@ config MN10300 select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK config AM33_2 def_bool n diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index f570b3085ef9..8223eb371e65 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -76,14 +76,6 @@ asmlinkage long sys_sigaction(int sig, 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. */ @@ -193,8 +185,7 @@ asmlinkage long sys_rt_sigreturn(void) if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, current_frame()->sp) == - -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return d0; @@ -359,9 +350,7 @@ 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) || - __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) || + __save_altstack(&frame->uc.uc_stack, regs->sp) || setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpuctx, regs, set->sig[0]) || __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set))) -- cgit v1.2.3 From 7d1d990ff161bdd2f0901a0916f35d272adf4c0b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 25 Dec 2012 16:24:21 -0500 Subject: mn10300: switch to generic old sigsuspend Signed-off-by: Al Viro --- arch/mn10300/Kconfig | 1 + arch/mn10300/kernel/signal.c | 10 ---------- 2 files changed, 1 insertion(+), 10 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index cb5022029606..f15703506d3f 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -11,6 +11,7 @@ config MN10300 select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA select GENERIC_SIGALTSTACK + select OLD_SIGSUSPEND3 config AM33_2 def_bool n diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index 8223eb371e65..d336d64f95f2 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -31,16 +31,6 @@ #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 */ -- cgit v1.2.3 From 33f9f78eec7e332dac6bee9cf66cd2bd435b7419 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 25 Dec 2012 19:28:15 -0500 Subject: mn10300: switch to generic old sigaction() Signed-off-by: Al Viro --- arch/mn10300/Kconfig | 1 + arch/mn10300/include/asm/signal.h | 7 ------- arch/mn10300/kernel/signal.c | 35 ----------------------------------- 3 files changed, 1 insertion(+), 42 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index f15703506d3f..12bf06f9abe5 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -12,6 +12,7 @@ config MN10300 select MODULES_USE_ELF_RELA select GENERIC_SIGALTSTACK select OLD_SIGSUSPEND3 + select OLD_SIGACTION config AM33_2 def_bool n diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h index 288ade5ec94e..214ff5e9fe60 100644 --- a/arch/mn10300/include/asm/signal.h +++ b/arch/mn10300/include/asm/signal.h @@ -26,13 +26,6 @@ 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/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index d336d64f95f2..9dfac5cd16e6 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -31,41 +31,6 @@ #define DEBUG_SIG 0 -/* - * 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; -} - /* * do a signal return; undo the signal stack. */ -- cgit v1.2.3 From d64008a8f30e0b381b292788ec6f3ee509b3bb40 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 25 Nov 2012 23:12:10 -0500 Subject: burying unused conditionals __ARCH_WANT_SYS_RT_SIGACTION, __ARCH_WANT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL - not used anymore CONFIG_GENERIC_{SIGALTSTACK,COMPAT_RT_SIG{ACTION,QUEUEINFO,PENDING,PROCMASK}} - can be assumed always set. --- arch/mn10300/Kconfig | 1 - arch/mn10300/include/asm/unistd.h | 2 -- 2 files changed, 3 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 12bf06f9abe5..ad0caea0bfea 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -10,7 +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 diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index e6d2ed4ba68f..7f9d9adfa51e 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -41,8 +41,6 @@ #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGACTION -#define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -- cgit v1.2.3