commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=09cfdbd34a2d25e24c19f18412f61ffbba2d2e5e branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/trunk
Signed-off-by: Al Viro <[email protected]> --- arch/blackfin/Kconfig | 1 + arch/blackfin/kernel/signal.c | 12 ++---------- 2 files changed, 3 insertions(+), 10 deletions(-) diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 8c74ff4..1fd396e 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -44,6 +44,7 @@ config BLACKFIN select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK config GENERIC_CSUM def_bool y diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index 84b4be0..b022af6 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -37,11 +37,6 @@ struct rt_sigframe { struct ucontext uc; }; -asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - static inline int rt_restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *pr0) { @@ -100,7 +95,7 @@ asmlinkage int sys_rt_sigreturn(void) if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->usp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return r0; @@ -178,10 +173,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_link); - err |= - __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(rdusp()), &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, rdusp()); err |= rt_setup_sigcontext(&frame->uc.uc_mcontext, regs); err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
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