diff options
Diffstat (limited to 'nuttx/arch/sh/src/m16c/m16c_sigdeliver.c')
| -rw-r--r-- | nuttx/arch/sh/src/m16c/m16c_sigdeliver.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/nuttx/arch/sh/src/m16c/m16c_sigdeliver.c b/nuttx/arch/sh/src/m16c/m16c_sigdeliver.c index 4493c28b4..848249721 100644 --- a/nuttx/arch/sh/src/m16c/m16c_sigdeliver.c +++ b/nuttx/arch/sh/src/m16c/m16c_sigdeliver.c @@ -1,7 +1,7 @@ /**************************************************************************** * arch/sh/src/m16c/m16c_sigdeliver.c * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * Redistribution and use in source and binary forms, with or without @@ -72,10 +72,9 @@ * Name: up_sigdeliver * * Description: - * This is the a signal handling trampoline. When a - * signal action was posted. The task context was mucked - * with and forced to branch to this location with interrupts - * disabled. + * This is the a signal handling trampoline. When a signal action was + * posted. The task context was mucked with and forced to branch to this + * location with interrupts disabled. * ****************************************************************************/ @@ -86,9 +85,9 @@ void up_sigdeliver(void) uint8_t regs[XCPTCONTEXT_SIZE]; sig_deliver_t sigdeliver; - /* Save the errno. This must be preserved throughout the - * signal handling so that the user code final gets - * the correct errno value (probably EINTR). + /* Save the errno. This must be preserved throughout the signal handling + * so that the user code final gets the correct errno value (probably + * EINTR). */ int saved_errno = rtcb->pterrno; @@ -106,10 +105,9 @@ void up_sigdeliver(void) regs[REG_PC+1] = rtcb->xcp.saved_pc[1]; regs[REG_FLG] = rtcb->xcp.saved_flg; - /* Get a local copy of the sigdeliver function pointer. - * we do this so that we can nullify the sigdeliver - * function point in the TCB and accept more signal - * deliveries while processing the current pending + /* Get a local copy of the sigdeliver function pointer. We do this so + * that we can nullify the sigdeliver function pointer in the TCB and + * accept more signal deliveries while processing the current pending * signals. */ @@ -124,13 +122,13 @@ void up_sigdeliver(void) sigdeliver(rtcb); - /* Output any debug messaged BEFORE restoreing errno - * (becuase they may alter errno), then restore the - * original errno that is needed by the user logic - * (it is probably EINTR). + /* Output any debug messages BEFORE restoring errno (because they may + * alter errno), then disable interrupts again and restore the original + * errno that is needed by the user logic (it is probably EINTR). */ sdbg("Resuming\n"); + (void)irqsave(); rtcb->pterrno = saved_errno; /* Then restore the correct state for this thread of |