remove target argument from gdb packet handling functions
[openocd.git] / src / target / smp.c
blobeed3d8ca9780c438f26d94a5acb6c2612d575d08
1 /***************************************************************************
2 * *
3 * Copyright (C) ST-Ericsson SA 2011 *
4 * Author: Michel Jaouen <michel.jaouen@stericsson.com> for ST-Ericsson. *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
24 #include "server/server.h"
25 #include <helper/types.h>
27 #include "target/target.h"
29 #include "server/gdb_server.h"
30 #include "smp.h"
33 /* implementation of new packet in gdb interface for smp feature */
34 /* */
35 /* j : smp status request */
36 /* J : smp set request */
37 /* */
38 /* jc :read core id displayed by gdb connection */
39 /* reply XXXXXXXX core id is int32_t , 8 hex digits */
40 /* */
41 /* Reply ENN error not supported (target not smp) */
42 /* */
43 /* JcXX set core id displayed at next gdb continue */
44 /* maximum 8 bytes described core id int32_t (8 hex digits) */
45 /* (core id -1 , reserved for returning to normal continue mode) */
46 /* Reply ENN error not supported(target not smp,core id out of range) */
47 /* Reply OK : for success */
48 /* */
49 /* handling of this packet within gdb can be done by the creation */
50 /* internal variable by mean of function allocate_computed_value */
51 /* set $_core 1 => Jc01 packet is sent */
52 /* print $_core => jc packet is sent and result is affected in $ */
53 /* Another way to test this packet is the usage of maintenance packet */
54 /* maint packet Jc01 */
55 /* maint packet jc */
57 static const char DIGITS[16] = "0123456789abcdef";
60 /* packet j :smp status request */
61 int gdb_read_smp_packet(struct connection *connection,
62 char *packet, int packet_size)
64 struct target *target = get_target_from_connection(connection);
65 uint32_t len = sizeof(int32_t);
66 uint8_t *buffer;
67 char *hex_buffer;
68 int retval = ERROR_OK;
69 if (target->smp)
71 if (strstr(packet, "jc"))
73 hex_buffer = malloc(len * 2 + 1);
74 buffer = (uint8_t *)&target->gdb_service->core[0];
75 uint32_t i;
76 for (i = 0; i < 4; i++)
78 uint8_t t = buffer[i];
79 hex_buffer[2 * i] = DIGITS[(t >> 4) & 0xf];
80 hex_buffer[2 * i + 1] = DIGITS[t & 0xf];
83 retval = gdb_put_packet(connection, hex_buffer, len * 2);
85 free(hex_buffer);
88 else
89 retval = gdb_put_packet(connection,"E01",3);
90 return retval;
93 /* J : smp set request */
94 int gdb_write_smp_packet(struct connection *connection,
95 char *packet, int packet_size)
97 struct target *target = get_target_from_connection(connection);
98 char *separator;
99 int coreid = 0;
100 int retval = ERROR_OK;
102 /* skip command character */
103 if (target->smp)
105 if (strstr(packet, "Jc"))
107 packet+=2;
108 coreid = strtoul(packet, &separator, 16);
109 target->gdb_service->core[1] = coreid;
110 retval = gdb_put_packet(connection, "OK", 2);
113 else
115 retval = gdb_put_packet(connection,"E01",3);
118 return retval;