/*
* Copyright (c) 2008 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup abi_generic
* @{
*/
/** @file
*/
#ifndef _ABI_UDEBUG_H_
#define _ABI_UDEBUG_H_
#define UDEBUG_EVMASK(event) (1 << ((event) - 1))
typedef enum { /* udebug_method_t */
/** Start debugging the recipient.
*
* Causes all threads in the receiving task to stop. When they
* are all stoped, an answer with retval 0 is generated.
*
*/
UDEBUG_M_BEGIN = 1,
/** Finish debugging the recipient.
*
* Answers all pending GO and GUARD messages.
*
*/
UDEBUG_M_END,
/** Set which events should be captured. */
UDEBUG_M_SET_EVMASK,
/** Make sure the debugged task is still there.
*
* This message is answered when the debugged task dies
* or the debugging session ends.
*
*/
UDEBUG_M_GUARD,
/** Run a thread until a debugging event occurs.
*
* This message is answered when the thread stops
* in a debugging event.
*
* - ARG2 - id of the thread to run
*
*/
UDEBUG_M_GO,
/** Stop a thread being debugged.
*
* Creates a special STOP event in the thread, causing
* it to answer a pending GO message (if any).
*
*/
UDEBUG_M_STOP,
/** Read arguments of a syscall.
*
* - ARG2 - thread identification
* - ARG3 - destination address in the caller's address space
*
*/
UDEBUG_M_ARGS_READ,
/** Read thread's userspace register state (istate_t).
*
* - ARG2 - thread identification
* - ARG3 - destination address in the caller's address space
*
* or, on error, retval will be
* - ENOENT - thread does not exist
* - EBUSY - register state not available
*/
UDEBUG_M_REGS_READ,
/** Read the list of the debugged tasks's threads.
*
* - ARG2 - destination address in the caller's address space
* - ARG3 - size of receiving buffer in bytes
*
* The kernel fills the buffer with a series of sysarg_t values
* (thread ids). On answer, the kernel will set:
*
* - ARG2 - number of bytes that were actually copied
* - ARG3 - number of bytes of the complete data
*
*/
UDEBUG_M_THREAD_READ,
/** Read the name of the debugged task.
*
* - ARG2 - destination address in the caller's address space
* - ARG3 - size of receiving buffer in bytes
*
* The kernel fills the buffer with a non-terminated string.
*
* - ARG2 - number of bytes that were actually copied
* - ARG3 - number of bytes of the complete data
*
*/
UDEBUG_M_NAME_READ,
/** Read the list of the debugged task's address space areas.
*
* - ARG2 - destination address in the caller's address space
* - ARG3 - size of receiving buffer in bytes
*
* The kernel fills the buffer with a series of as_area_info_t structures.
* Upon answer, the kernel will set:
*
* - ARG2 - number of bytes that were actually copied
* - ARG3 - number of bytes of the complete data
*
*/
UDEBUG_M_AREAS_READ,
/** Read the debugged tasks's memory.
*
* - ARG2 - destination address in the caller's address space
* - ARG3 - source address in the recipient's address space
* - ARG4 - size of receiving buffer in bytes
*
*/
UDEBUG_M_MEM_READ
} udebug_method_t;
typedef enum {
UDEBUG_EVENT_FINISHED = 1, /**< Debuging session has finished */
UDEBUG_EVENT_STOP, /**< Stopped on DEBUG_STOP request */
UDEBUG_EVENT_SYSCALL_B, /**< Before beginning syscall execution */
UDEBUG_EVENT_SYSCALL_E, /**< After finishing syscall execution */
UDEBUG_EVENT_THREAD_B, /**< The task created a new thread */
UDEBUG_EVENT_THREAD_E /**< A thread exited */
} udebug_event_t;
typedef enum {
UDEBUG_EM_FINISHED = UDEBUG_EVMASK(UDEBUG_EVENT_FINISHED),
UDEBUG_EM_STOP = UDEBUG_EVMASK(UDEBUG_EVENT_STOP),
UDEBUG_EM_SYSCALL_B = UDEBUG_EVMASK(UDEBUG_EVENT_SYSCALL_B),
UDEBUG_EM_SYSCALL_E = UDEBUG_EVMASK(UDEBUG_EVENT_SYSCALL_E),
UDEBUG_EM_THREAD_B = UDEBUG_EVMASK(UDEBUG_EVENT_THREAD_B),
UDEBUG_EM_THREAD_E = UDEBUG_EVMASK(UDEBUG_EVENT_THREAD_E),
UDEBUG_EM_ALL =
(UDEBUG_EVMASK(UDEBUG_EVENT_FINISHED) |
UDEBUG_EVMASK(UDEBUG_EVENT_STOP) |
UDEBUG_EVMASK(UDEBUG_EVENT_SYSCALL_B) |
UDEBUG_EVMASK(UDEBUG_EVENT_SYSCALL_E) |
UDEBUG_EVMASK(UDEBUG_EVENT_THREAD_B) |
UDEBUG_EVMASK(UDEBUG_EVENT_THREAD_E))
} udebug_evmask_t;
#endif
/** @}
*/