WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/udebug/udebug_ipc.c



    int rc;
 
    rc = udebug_begin(call);
    if (rc < 0) {
        IPC_SET_RETVAL(call->data, rc);
        ipc_answer(&TASK->kb.box, call);
        return;
    }
 
    /*
     * If the initialization of the debugging session has finished,
     * send a reply.
     */
    if (rc != 0) {
        IPC_SET_RETVAL(call->data, 0);
        ipc_answer(&TASK->kb.box, call);
    }
}
 
/** Process an END call.
 *

    int rc;
 
    rc = udebug_end();
 
    IPC_SET_RETVAL(call->data, rc);
    ipc_answer(&TASK->kb.box, call);
}
 
/** Process a SET_EVMASK call.
 *
 * Sets an event mask for the current debugging session.

 
    mask = IPC_GET_ARG2(call->data);
    rc = udebug_set_evmask(mask);
 
    IPC_SET_RETVAL(call->data, rc);
    ipc_answer(&TASK->kb.box, call);
}
 
 
/** Process a GO call.
 *

    t = (thread_t *)IPC_GET_ARG2(call->data);
 
    rc = udebug_go(t, call);
    if (rc < 0) {
        IPC_SET_RETVAL(call->data, rc);
        ipc_answer(&TASK->kb.box, call);
        return;
    }
}
 
/** Process a STOP call.

 
    t = (thread_t *)IPC_GET_ARG2(call->data);
 
    rc = udebug_stop(t, call);
    IPC_SET_RETVAL(call->data, rc);
    ipc_answer(&TASK->kb.box, call);
}
 
/** Process a THREAD_READ call.
 *
 * Reads the list of hashes of the (userspace) threads in the current task.

     * of threads times thread-id size.
     */
    rc = udebug_thread_read(&buffer, buf_size, &n);
    if (rc < 0) {
        IPC_SET_RETVAL(call->data, rc);
        ipc_answer(&TASK->kb.box, call);
        return;
    }
 
    total_bytes = n;
 

    IPC_SET_ARG2(call->data, to_copy);
 
    IPC_SET_ARG3(call->data, total_bytes);
    call->buffer = buffer;
 
    ipc_answer(&TASK->kb.box, call);
}
 
/** Process an ARGS_READ call.
 *
 * Reads the argument of a current syscall event (SYSCALL_B or SYSCALL_E).

    t = (thread_t *)IPC_GET_ARG2(call->data);
 
    rc = udebug_args_read(t, &buffer);
    if (rc != EOK) {
        IPC_SET_RETVAL(call->data, rc);
        ipc_answer(&TASK->kb.box, call);
        return;
    }
 
    /*
     * Make use of call->buffer to transfer data to caller's userspace

       (no way to distinguish method in answer) */
    IPC_SET_ARG1(call->data, uspace_addr);
    IPC_SET_ARG2(call->data, 6 * sizeof(unative_t));
    call->buffer = buffer;
 
    ipc_answer(&TASK->kb.box, call);
}
 
/** Process an MEM_READ call.
 *
 * Reads memory of the current (debugged) task.

    size = IPC_GET_ARG4(call->data);
 
    rc = udebug_mem_read(uspace_src, size, &buffer);
    if (rc < 0) {
        IPC_SET_RETVAL(call->data, rc);
        ipc_answer(&TASK->kb.box, call);
        return;
    }
 
    IPC_SET_RETVAL(call->data, 0);
    /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that

       (no way to distinguish method in answer) */
    IPC_SET_ARG1(call->data, uspace_dst);
    IPC_SET_ARG2(call->data, size);
    call->buffer = buffer;
 
    ipc_answer(&TASK->kb.box, call);
}
 
/** Handle a debug call received on the kernel answerbox.
 *
 * This is called by the kbox servicing thread. Verifies that the sender

         * and the sender can be safely considered valid until
         * control exits this function.
         */
        if (TASK->udebug.debugger != call->sender) {
            IPC_SET_RETVAL(call->data, EINVAL);
            ipc_answer(&TASK->kb.box, call);
            return;
        }
    }
 
    switch (debug_method) {

Rev 3468	Rev 3620
Line 71...	Line 71...
71	int rc;	71	int rc;
72		72
73	rc = udebug_begin(call);	73	rc = udebug_begin(call);
74	if (rc < 0) {	74	if (rc < 0) {
75	IPC_SET_RETVAL(call->data, rc);	75	IPC_SET_RETVAL(call->data, rc);
76	ipc_answer(&TASK->kernel_box, call);	76	ipc_answer(&TASK->kb.box, call);
77	return;	77	return;
78	}	78	}
79		79
80	/*	80	/*
81	* If the initialization of the debugging session has finished,	81	* If the initialization of the debugging session has finished,
82	* send a reply.	82	* send a reply.
83	*/	83	*/
84	if (rc != 0) {	84	if (rc != 0) {
85	IPC_SET_RETVAL(call->data, 0);	85	IPC_SET_RETVAL(call->data, 0);
86	ipc_answer(&TASK->kernel_box, call);	86	ipc_answer(&TASK->kb.box, call);
87	}	87	}
88	}	88	}
89		89
90	/** Process an END call.	90	/** Process an END call.
91	*	91	*
Line 97...	Line 97...
97	int rc;	97	int rc;
98		98
99	rc = udebug_end();	99	rc = udebug_end();
100		100
101	IPC_SET_RETVAL(call->data, rc);	101	IPC_SET_RETVAL(call->data, rc);
102	ipc_answer(&TASK->kernel_box, call);	102	ipc_answer(&TASK->kb.box, call);
103	}	103	}
104		104
105	/** Process a SET_EVMASK call.	105	/** Process a SET_EVMASK call.
106	*	106	*
107	* Sets an event mask for the current debugging session.	107	* Sets an event mask for the current debugging session.
Line 114...	Line 114...
114		114
115	mask = IPC_GET_ARG2(call->data);	115	mask = IPC_GET_ARG2(call->data);
116	rc = udebug_set_evmask(mask);	116	rc = udebug_set_evmask(mask);
117		117
118	IPC_SET_RETVAL(call->data, rc);	118	IPC_SET_RETVAL(call->data, rc);
119	ipc_answer(&TASK->kernel_box, call);	119	ipc_answer(&TASK->kb.box, call);
120	}	120	}
121		121
122		122
123	/** Process a GO call.	123	/** Process a GO call.
124	*	124	*
Line 133...	Line 133...
133	t = (thread_t *)IPC_GET_ARG2(call->data);	133	t = (thread_t *)IPC_GET_ARG2(call->data);
134		134
135	rc = udebug_go(t, call);	135	rc = udebug_go(t, call);
136	if (rc < 0) {	136	if (rc < 0) {
137	IPC_SET_RETVAL(call->data, rc);	137	IPC_SET_RETVAL(call->data, rc);
138	ipc_answer(&TASK->kernel_box, call);	138	ipc_answer(&TASK->kb.box, call);
139	return;	139	return;
140	}	140	}
141	}	141	}
142		142
143	/** Process a STOP call.	143	/** Process a STOP call.
Line 152...	Line 152...
152		152
153	t = (thread_t *)IPC_GET_ARG2(call->data);	153	t = (thread_t *)IPC_GET_ARG2(call->data);
154		154
155	rc = udebug_stop(t, call);	155	rc = udebug_stop(t, call);
156	IPC_SET_RETVAL(call->data, rc);	156	IPC_SET_RETVAL(call->data, rc);
157	ipc_answer(&TASK->kernel_box, call);	157	ipc_answer(&TASK->kb.box, call);
158	}	158	}
159		159
160	/** Process a THREAD_READ call.	160	/** Process a THREAD_READ call.
161	*	161	*
162	* Reads the list of hashes of the (userspace) threads in the current task.	162	* Reads the list of hashes of the (userspace) threads in the current task.
Line 180...	Line 180...
180	* of threads times thread-id size.	180	* of threads times thread-id size.
181	*/	181	*/
182	rc = udebug_thread_read(&buffer, buf_size, &n);	182	rc = udebug_thread_read(&buffer, buf_size, &n);
183	if (rc < 0) {	183	if (rc < 0) {
184	IPC_SET_RETVAL(call->data, rc);	184	IPC_SET_RETVAL(call->data, rc);
185	ipc_answer(&TASK->kernel_box, call);	185	ipc_answer(&TASK->kb.box, call);
186	return;	186	return;
187	}	187	}
188		188
189	total_bytes = n;	189	total_bytes = n;
190		190
Line 207...	Line 207...
207	IPC_SET_ARG2(call->data, to_copy);	207	IPC_SET_ARG2(call->data, to_copy);
208		208
209	IPC_SET_ARG3(call->data, total_bytes);	209	IPC_SET_ARG3(call->data, total_bytes);
210	call->buffer = buffer;	210	call->buffer = buffer;
211		211
212	ipc_answer(&TASK->kernel_box, call);	212	ipc_answer(&TASK->kb.box, call);
213	}	213	}
214		214
215	/** Process an ARGS_READ call.	215	/** Process an ARGS_READ call.
216	*	216	*
217	* Reads the argument of a current syscall event (SYSCALL_B or SYSCALL_E).	217	* Reads the argument of a current syscall event (SYSCALL_B or SYSCALL_E).
Line 227...	Line 227...
227	t = (thread_t *)IPC_GET_ARG2(call->data);	227	t = (thread_t *)IPC_GET_ARG2(call->data);
228		228
229	rc = udebug_args_read(t, &buffer);	229	rc = udebug_args_read(t, &buffer);
230	if (rc != EOK) {	230	if (rc != EOK) {
231	IPC_SET_RETVAL(call->data, rc);	231	IPC_SET_RETVAL(call->data, rc);
232	ipc_answer(&TASK->kernel_box, call);	232	ipc_answer(&TASK->kb.box, call);
233	return;	233	return;
234	}	234	}
235		235
236	/*	236	/*
237	* Make use of call->buffer to transfer data to caller's userspace	237	* Make use of call->buffer to transfer data to caller's userspace
Line 245...	Line 245...
245	(no way to distinguish method in answer) */	245	(no way to distinguish method in answer) */
246	IPC_SET_ARG1(call->data, uspace_addr);	246	IPC_SET_ARG1(call->data, uspace_addr);
247	IPC_SET_ARG2(call->data, 6 * sizeof(unative_t));	247	IPC_SET_ARG2(call->data, 6 * sizeof(unative_t));
248	call->buffer = buffer;	248	call->buffer = buffer;
249		249
250	ipc_answer(&TASK->kernel_box, call);	250	ipc_answer(&TASK->kb.box, call);
251	}	251	}
252		252
253	/** Process an MEM_READ call.	253	/** Process an MEM_READ call.
254	*	254	*
255	* Reads memory of the current (debugged) task.	255	* Reads memory of the current (debugged) task.
Line 268...	Line 268...
268	size = IPC_GET_ARG4(call->data);	268	size = IPC_GET_ARG4(call->data);
269		269
270	rc = udebug_mem_read(uspace_src, size, &buffer);	270	rc = udebug_mem_read(uspace_src, size, &buffer);
271	if (rc < 0) {	271	if (rc < 0) {
272	IPC_SET_RETVAL(call->data, rc);	272	IPC_SET_RETVAL(call->data, rc);
273	ipc_answer(&TASK->kernel_box, call);	273	ipc_answer(&TASK->kb.box, call);
274	return;	274	return;
275	}	275	}
276		276
277	IPC_SET_RETVAL(call->data, 0);	277	IPC_SET_RETVAL(call->data, 0);
278	/* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that	278	/* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that
Line 280...	Line 280...
280	(no way to distinguish method in answer) */	280	(no way to distinguish method in answer) */
281	IPC_SET_ARG1(call->data, uspace_dst);	281	IPC_SET_ARG1(call->data, uspace_dst);
282	IPC_SET_ARG2(call->data, size);	282	IPC_SET_ARG2(call->data, size);
283	call->buffer = buffer;	283	call->buffer = buffer;
284		284
285	ipc_answer(&TASK->kernel_box, call);	285	ipc_answer(&TASK->kb.box, call);
286	}	286	}
287		287
288	/** Handle a debug call received on the kernel answerbox.	288	/** Handle a debug call received on the kernel answerbox.
289	*	289	*
290	* This is called by the kbox servicing thread. Verifies that the sender	290	* This is called by the kbox servicing thread. Verifies that the sender
Line 304...	Line 304...
304	* and the sender can be safely considered valid until	304	* and the sender can be safely considered valid until
305	* control exits this function.	305	* control exits this function.
306	*/	306	*/
307	if (TASK->udebug.debugger != call->sender) {	307	if (TASK->udebug.debugger != call->sender) {
308	IPC_SET_RETVAL(call->data, EINVAL);	308	IPC_SET_RETVAL(call->data, EINVAL);
309	ipc_answer(&TASK->kernel_box, call);	309	ipc_answer(&TASK->kb.box, call);
310	return;	310	return;
311	}	311	}
312	}	312	}
313		313
314	switch (debug_method) {	314	switch (debug_method) {

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(root)/trunk/kernel/generic/src/udebug/udebug_ipc.c @ 4383 – Rev 3468 → 3620