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Fix an PIC32 error in scheduling of signal handlers 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4229 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2011-12-26 16:24:43 +00:00
parent 1f295f7f6b
commit b63f8f7fff
9 changed files with 47 additions and 29 deletions
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13
arch/mips/src/common/up_exit.c
View File

@ -1,8 +1,8 @@
/****************************************************************************
* arch/mips/src.common/up_exit.c
* arch/mips/src/common/up_exit.c
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -41,6 +41,7 @@
#include <sched.h>
#include <syscall.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/arch.h>
@ -171,5 +172,11 @@ void _exit(int status)
/* Then switch contexts */
up_fullcontextrestore(tcb->xcp.regs);
/* up_fullcontextrestore() should not return but could if the software
* interrupts are disabled.
*/
PANIC(OSERR_INTERNAL);
}

24
arch/mips/src/mips32/up_schedulesigaction.c
View File

@ -2,7 +2,7 @@
* arch/mips/src/mips32/up_schedulesigaction.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -150,9 +150,9 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
else
{
/* Save the return lr and cpsr and one scratch register
* These will be restored by the signal trampoline after
* the signals have been delivered.
/* Save the return EPC and STATUS registers. These will be
* restored by the signal trampoline after the signals have
* been delivered.
*/
tcb->xcp.sigdeliver = sigdeliver;
@ -174,6 +174,10 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
*/
up_savestate(tcb->xcp.regs);
svdbg("PC/STATUS Saved: %08x/%08x New: %08x/%08x\n",
tcb->xcp.saved_epc, tcb->xcp.saved_status,
current_regs[REG_EPC], current_regs[REG_STATUS]);
}
}
@ -185,9 +189,9 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
else
{
/* Save the return lr and cpsr and one scratch register
* These will be restored by the signal trampoline after
* the signals have been delivered.
/* Save the return EPC and STATUS registers. These will be
* restored by the signal trampoline after the signals have
* been delivered.
*/
tcb->xcp.sigdeliver = sigdeliver;
@ -199,10 +203,14 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
*/
tcb->xcp.regs[REG_EPC] = (uint32_t)up_sigdeliver;
status = current_regs[REG_STATUS];
status = tcb->xcp.regs[REG_STATUS];
status &= ~CP0_STATUS_IM_MASK;
status |= CP0_STATUS_IM_SWINTS;
tcb->xcp.regs[REG_STATUS] = status;
svdbg("PC/STATUS Saved: %08x/%08x New: %08x/%08x\n",
tcb->xcp.saved_epc, tcb->xcp.saved_status,
tcb->xcp.regs[REG_EPC], tcb->xcp.regs[REG_STATUS]);
}
irqrestore(flags);

5
arch/mips/src/mips32/up_sigdeliver.c
View File

@ -2,7 +2,7 @@
* arch/mips/src/mips32/up_sigdeliver.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -126,7 +126,8 @@ void up_sigdeliver(void)
* errno that is needed by the user logic (it is probably EINTR).
*/
sdbg("Resuming\n");
svdbg("Resuming EPC: %08x STATUS: %08x\n", regs[REG_EPC], regs[REG_STATUS]);
(void)irqsave();
rtcb->pterrno = saved_errno;

10
sched/pthread_completejoin.c
View File

@ -1,8 +1,8 @@
/************************************************************************
* sched/pthread_completejoin.c
*
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -83,7 +83,7 @@ static bool pthread_notifywaiters(FAR join_t *pjoin)
int ntasks_waiting;
int status;
sdbg("pjoin=0x%p\n", pjoin);
svdbg("pjoin=0x%p\n", pjoin);
/* Are any tasks waiting for our exit value? */
@ -148,7 +148,7 @@ int pthread_completejoin(pid_t pid, FAR void *exit_value)
{
FAR join_t *pjoin;
sdbg("process_id=%d exit_value=%p\n", pid, exit_value);
svdbg("pid=%d exit_value=%p\n", pid, exit_value);
/* First, find thread's structure in the private data set. */
@ -156,7 +156,7 @@ int pthread_completejoin(pid_t pid, FAR void *exit_value)
pjoin = pthread_findjoininfo(pid);
if (!pjoin)
{
sdbg("Could not find join info, pid=%d\n", pid);
(void)pthread_givesemaphore(&g_join_semaphore);
return ERROR;
}

8
sched/pthread_exit.c
View File

@ -1,8 +1,8 @@
/************************************************************************
* sched/pthread_exit.c
*
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -45,7 +45,9 @@
#include <pthread.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/arch.h>
#include "pthread_internal.h"
/************************************************************************
@ -111,7 +113,7 @@ void pthread_exit(FAR void *exit_value)
status = pthread_completejoin(getpid(), exit_value);
if (status != OK)
{
/* Assume that the join completion failured becuase this
/* Assume that the join completion failured because this
* not really a pthread. Exit by calling exit() to flush
* and close all file descriptors and calling atexit()
* functions.

4
sched/pthread_join.c
View File

@ -1,8 +1,8 @@
/****************************************************************************
* pthread_join.c
*
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007, 2008, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions

8
sched/pthread_kill.c
View File

@ -1,8 +1,8 @@
/************************************************************************
* sched/pthread_kill.c
*
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -83,11 +83,11 @@ int pthread_kill(pthread_t thread, int signo)
{
int ret;
*get_errno_ptr() = EINVAL;
set_errno(EINVAL);
ret = kill((pid_t)thread, signo);
if (ret != OK)
{
ret = *get_errno_ptr();
ret = get_errno();
}
return ret;
}

2
sched/sig_kill.c
View File

@ -2,7 +2,7 @@
* sched/sig_kill.c
*
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions

2
sched/sig_received.c
View File

@ -2,7 +2,7 @@
* sched/sig_received.c
*
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions