From 8972be4d44fbec0b2e1d7b68874fb61c5bf7b06a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 12 Oct 2010 22:38:04 -0400 Subject: m68knommu: signal.c __user annotations Signed-off-by: Al Viro Acked-by: Greg Ungerer Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c index 97a4712..15ac820 100644 --- a/arch/m68knommu/kernel/signal.c +++ b/arch/m68knommu/kernel/signal.c @@ -74,9 +74,9 @@ sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) return -ERESTARTNOHAND; } -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction *act, - struct old_sigaction *oact) +asmlinkage int +sys_sigaction(int sig, const struct old_sigaction __user *act, + struct old_sigaction __user *oact) { struct k_sigaction new_ka, old_ka; int ret; @@ -107,7 +107,7 @@ sys_sigaction(int sig, const struct old_sigaction *act, } asmlinkage int -sys_sigaltstack(const stack_t *uss, stack_t *uoss) +sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) { return do_sigaltstack(uss, uoss, rdusp()); } @@ -122,10 +122,10 @@ sys_sigaltstack(const stack_t *uss, stack_t *uoss) struct sigframe { - char *pretcode; + char __user *pretcode; int sig; int code; - struct sigcontext *psc; + struct sigcontext __user *psc; char retcode[8]; unsigned long extramask[_NSIG_WORDS-1]; struct sigcontext sc; @@ -133,10 +133,10 @@ struct sigframe struct rt_sigframe { - char *pretcode; + char __user *pretcode; int sig; - struct siginfo *pinfo; - void *puc; + struct siginfo __user *pinfo; + void __user *puc; char retcode[8]; struct siginfo info; struct ucontext uc; @@ -183,7 +183,7 @@ out: #define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] #define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] -static inline int rt_restore_fpu_state(struct ucontext *uc) +static inline int rt_restore_fpu_state(struct ucontext __user *uc) { unsigned char fpstate[FPCONTEXT_SIZE]; int context_size = 0; @@ -202,7 +202,7 @@ static inline int rt_restore_fpu_state(struct ucontext *uc) return 0; } - if (__get_user(*(long *)fpstate, (long *)&uc->uc_fpstate)) + if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) goto out; if (fpstate[0]) { context_size = fpstate[1]; @@ -222,7 +222,7 @@ static inline int rt_restore_fpu_state(struct ucontext *uc) "m" (*fpregs.f_fpcntl)); } if (context_size && - __copy_from_user(fpstate + 4, (long *)&uc->uc_fpstate + 1, + __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, context_size)) goto out; __asm__ volatile (".chip 68k/68881\n\t" @@ -237,7 +237,7 @@ out: #endif static inline int -restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc, void *fp, +restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp, int *pd0) { int formatvec; @@ -277,10 +277,10 @@ badframe: static inline int rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, - struct ucontext *uc, int *pd0) + struct ucontext __user *uc, int *pd0) { int temp; - greg_t *gregs = uc->uc_mcontext.gregs; + greg_t __user *gregs = uc->uc_mcontext.gregs; unsigned long usp; int err; @@ -330,7 +330,7 @@ asmlinkage int do_sigreturn(unsigned long __unused) struct switch_stack *sw = (struct switch_stack *) &__unused; struct pt_regs *regs = (struct pt_regs *) (sw + 1); unsigned long usp = rdusp(); - struct sigframe *frame = (struct sigframe *)(usp - 4); + struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); sigset_t set; int d0; @@ -362,7 +362,7 @@ asmlinkage int do_rt_sigreturn(unsigned long __unused) struct switch_stack *sw = (struct switch_stack *) &__unused; struct pt_regs *regs = (struct pt_regs *) (sw + 1); unsigned long usp = rdusp(); - struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4); + struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); sigset_t set; int d0; @@ -418,7 +418,7 @@ static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) } } -static inline int rt_save_fpu_state(struct ucontext *uc, struct pt_regs *regs) +static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) { unsigned char fpstate[FPCONTEXT_SIZE]; int context_size = 0; @@ -439,7 +439,7 @@ static inline int rt_save_fpu_state(struct ucontext *uc, struct pt_regs *regs) ".chip 68k" : : "m" (*fpstate) : "memory"); - err |= __put_user(*(long *)fpstate, (long *)&uc->uc_fpstate); + err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); if (fpstate[0]) { fpregset_t fpregs; context_size = fpstate[1]; @@ -456,7 +456,7 @@ static inline int rt_save_fpu_state(struct ucontext *uc, struct pt_regs *regs) sizeof(fpregs)); } if (context_size) - err |= copy_to_user((long *)&uc->uc_fpstate + 1, fpstate + 4, + err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, context_size); return err; } @@ -481,10 +481,10 @@ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, #endif } -static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs) +static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) { struct switch_stack *sw = (struct switch_stack *)regs - 1; - greg_t *gregs = uc->uc_mcontext.gregs; + greg_t __user *gregs = uc->uc_mcontext.gregs; int err = 0; err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); @@ -512,7 +512,7 @@ static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs) return err; } -static inline void * +static inline void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) { unsigned long usp; @@ -525,13 +525,13 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) if (!sas_ss_flags(usp)) usp = current->sas_ss_sp + current->sas_ss_size; } - return (void *)((usp - frame_size) & -8UL); + return (void __user *)((usp - frame_size) & -8UL); } static int setup_frame (int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs) { - struct sigframe *frame; + struct sigframe __user *frame; struct sigcontext context; int err = 0; @@ -592,7 +592,7 @@ give_sigsegv: static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set, struct pt_regs *regs) { - struct rt_sigframe *frame; + struct rt_sigframe __user *frame; int err = 0; frame = get_sigframe(ka, regs, sizeof(*frame)); @@ -609,8 +609,8 @@ static int 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, + err |= __put_user(NULL, &frame->uc.uc_link); + err |= __put_user((void __user *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); err |= __put_user(sas_ss_flags(rdusp()), &frame->uc.uc_stack.ss_flags); -- cgit v0.10.2