diff options
Diffstat (limited to 'arch/x86/ia32')
| -rw-r--r-- | arch/x86/ia32/ia32_signal.c | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index b0460cd7de5..cf1a471a18a 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -309,7 +309,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, /* * Determine which stack to use.. */ -static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, +static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size, void __user **fpstate) { @@ -319,16 +319,13 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, sp = regs->sp; /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - + if (ksig->ka.sa.sa_flags & SA_ONSTACK) + sp = sigsp(sp, ksig); /* This is the legacy signal stack switching. */ else if ((regs->ss & 0xffff) != __USER32_DS && - !(ka->sa.sa_flags & SA_RESTORER) && - ka->sa.sa_restorer) - sp = (unsigned long) ka->sa.sa_restorer; + !(ksig->ka.sa.sa_flags & SA_RESTORER) && + ksig->ka.sa.sa_restorer) + sp = (unsigned long) ksig->ka.sa.sa_restorer; if (used_math()) { unsigned long fx_aligned, math_size; @@ -347,7 +344,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, return (void __user *) sp; } -int ia32_setup_frame(int sig, struct k_sigaction *ka, +int ia32_setup_frame(int sig, struct ksignal *ksig, compat_sigset_t *set, struct pt_regs *regs) { struct sigframe_ia32 __user *frame; @@ -366,7 +363,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, 0x80cd, /* int $0x80 */ }; - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); + frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) return -EFAULT; @@ -383,8 +380,8 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, return -EFAULT; } - if (ka->sa.sa_flags & SA_RESTORER) { - restorer = ka->sa.sa_restorer; + if (ksig->ka.sa.sa_flags & SA_RESTORER) { + restorer = ksig->ka.sa.sa_restorer; } else { /* Return stub is in 32bit vsyscall page */ if (current->mm->context.vdso) @@ -409,7 +406,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, /* Set up registers for signal handler */ regs->sp = (unsigned long) frame; - regs->ip = (unsigned long) ka->sa.sa_handler; + regs->ip = (unsigned long) ksig->ka.sa.sa_handler; /* Make -mregparm=3 work */ regs->ax = sig; @@ -425,7 +422,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, return 0; } -int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, +int ia32_setup_rt_frame(int sig, struct ksignal *ksig, compat_sigset_t *set, struct pt_regs *regs) { struct rt_sigframe_ia32 __user *frame; @@ -446,7 +443,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 0, }; - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); + frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) return -EFAULT; @@ -464,8 +461,8 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, put_user_ex(0, &frame->uc.uc_link); err |= __compat_save_altstack(&frame->uc.uc_stack, regs->sp); - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; + if (ksig->ka.sa.sa_flags & SA_RESTORER) + restorer = ksig->ka.sa.sa_restorer; else restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); @@ -478,7 +475,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode); } put_user_catch(err); - err |= copy_siginfo_to_user32(&frame->info, info); + err |= copy_siginfo_to_user32(&frame->info, &ksig->info); err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); @@ -488,7 +485,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up registers for signal handler */ regs->sp = (unsigned long) frame; - regs->ip = (unsigned long) ka->sa.sa_handler; + regs->ip = (unsigned long) ksig->ka.sa.sa_handler; /* Make -mregparm=3 work */ regs->ax = sig; |