diff options
Diffstat (limited to 'arch/um/sys-x86_64/signal.c')
| -rw-r--r-- | arch/um/sys-x86_64/signal.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index a8e5fd7..1778d33 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2003 PathScale, Inc. + * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -110,7 +111,8 @@ static int copy_sc_to_user(struct sigcontext __user *to, err |= PUTREG(regs, RDI, to, rdi); err |= PUTREG(regs, RSI, to, rsi); err |= PUTREG(regs, RBP, to, rbp); - /* Must use orignal RSP, which is passed in, rather than what's in + /* + * Must use orignal RSP, which is passed in, rather than what's in * the pt_regs, because that's already been updated to point at the * signal frame. */ @@ -152,7 +154,7 @@ static int copy_sc_to_user(struct sigcontext __user *to, if (copy_to_user(to_fp, &fp, sizeof(struct user_i387_struct))) return 1; - return(err); + return err; } struct rt_sigframe @@ -188,7 +190,8 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, goto out; } - /* Update SP now because the page fault handler refuses to extend + /* + * Update SP now because the page fault handler refuses to extend * the stack if the faulting address is too far below the current * SP, which frame now certainly is. If there's an error, the original * value is restored on the way out. @@ -216,8 +219,10 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ + /* + * Set up to return from userspace. If provided, use a stub + * already in userspace. + */ /* x86-64 should always use SA_RESTORER. */ if (ka->sa.sa_flags & SA_RESTORER) err |= __put_user(ka->sa.sa_restorer, &frame->pretcode); @@ -239,8 +244,10 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, /* In case the signal handler was declared without prototypes */ PT_REGS_RAX(regs) = 0; - /* This also works for non SA_SIGINFO handlers because they expect the - next argument after the signal number on the stack. */ + /* + * This also works for non SA_SIGINFO handlers because they expect the + * next argument after the signal number on the stack. + */ PT_REGS_RSI(regs) = (unsigned long) &frame->info; PT_REGS_RDX(regs) = (unsigned long) &frame->uc; PT_REGS_RIP(regs) = (unsigned long) ka->sa.sa_handler; @@ -276,7 +283,7 @@ long sys_rt_sigreturn(struct pt_regs *regs) /* Avoid ERESTART handling */ PT_REGS_SYSCALL_NR(¤t->thread.regs) = -1; - return(PT_REGS_SYSCALL_RET(¤t->thread.regs)); + return PT_REGS_SYSCALL_RET(¤t->thread.regs); segfault: force_sig(SIGSEGV, current); |