1 // SPDX-License-Identifier: GPL-2.0-or-later
3 /***************************************************************************
5 * Copyright (C) ST-Ericsson SA 2011 *
6 * Author: Michel Jaouen <michel.jaouen@stericsson.com> for ST-Ericsson. *
7 ***************************************************************************/
13 #include "server/server.h"
15 #include "target/target.h"
17 #include "server/gdb_server.h"
19 #include "helper/binarybuffer.h"
21 /* DEPRECATED: gdb_read_smp_packet/gdb_write_smp_packet to be removed */
22 /* implementation of new packet in gdb interface for smp feature */
24 /* j : smp status request */
25 /* J : smp set request */
27 /* jc :read core id displayed by gdb connection */
28 /* reply XXXXXXXX core id is int32_t , 8 hex digits */
30 /* Reply ENN error not supported (target not smp) */
32 /* JcXX set core id displayed at next gdb continue */
33 /* maximum 8 bytes described core id int32_t (8 hex digits) */
34 /* (core id -1 , reserved for returning to normal continue mode) */
35 /* Reply ENN error not supported(target not smp,core id out of range) */
36 /* Reply OK : for success */
38 /* handling of this packet within gdb can be done by the creation */
39 /* internal variable by mean of function allocate_computed_value */
40 /* set $_core 1 => Jc01 packet is sent */
41 /* print $_core => jc packet is sent and result is affected in $ */
42 /* Another way to test this packet is the usage of maintenance packet */
43 /* maint packet Jc01 */
46 /* packet j :smp status request */
47 #define DEPRECATED_MSG "DEPRECATED: This method is deprecated in favor of the hwthread pseudo RTOS"
48 int gdb_read_smp_packet(struct connection
*connection
,
49 char const *packet
, int packet_size
)
51 struct target
*target
= get_target_from_connection(connection
);
52 int retval
= ERROR_OK
;
54 LOG_WARNING(DEPRECATED_MSG
);
57 if (strncmp(packet
, "jc", 2) == 0) {
58 const uint32_t len
= sizeof(target
->gdb_service
->core
[0]);
59 char hex_buffer
[len
* 2 + 1];
61 buf_set_u32(buffer
, 0, len
* 8, target
->gdb_service
->core
[0]);
62 size_t pkt_len
= hexify(hex_buffer
, buffer
, sizeof(buffer
),
65 retval
= gdb_put_packet(connection
, hex_buffer
, pkt_len
);
68 retval
= gdb_put_packet(connection
, "E01", 3);
72 /* J : smp set request */
73 int gdb_write_smp_packet(struct connection
*connection
,
74 char const *packet
, int packet_size
)
76 struct target
*target
= get_target_from_connection(connection
);
79 int retval
= ERROR_OK
;
81 LOG_WARNING(DEPRECATED_MSG
);
83 /* skip command character */
85 if (strncmp(packet
, "Jc", 2) == 0) {
87 coreid
= strtoul(packet
, &separator
, 16);
88 target
->gdb_service
->core
[1] = coreid
;
89 retval
= gdb_put_packet(connection
, "OK", 2);
92 retval
= gdb_put_packet(connection
, "E01", 3);
97 COMMAND_HANDLER(default_handle_smp_command
)
99 struct target
*target
= get_current_target(CMD_CTX
);
100 struct target_list
*head
;
103 return ERROR_COMMAND_SYNTAX_ERROR
;
106 command_print(CMD
, "%s", target
->smp
? "on" : "off");
110 if (!strcmp(CMD_ARGV
[0], "on")) {
111 foreach_smp_target(head
, target
->smp_targets
)
112 head
->target
->smp
= 1;
117 if (!strcmp(CMD_ARGV
[0], "off")) {
118 foreach_smp_target(head
, target
->smp_targets
)
119 head
->target
->smp
= 0;
121 /* fixes the target display to the debugger */
122 if (!list_empty(target
->smp_targets
))
123 target
->gdb_service
->target
= target
;
128 return ERROR_COMMAND_SYNTAX_ERROR
;
131 COMMAND_HANDLER(handle_smp_gdb_command
)
133 struct target
*target
= get_current_target(CMD_CTX
);
134 int retval
= ERROR_OK
;
135 if (!list_empty(target
->smp_targets
)) {
138 COMMAND_PARSE_NUMBER(int, CMD_ARGV
[0], coreid
);
139 if (retval
!= ERROR_OK
)
141 target
->gdb_service
->core
[1] = coreid
;
144 command_print(CMD
, "gdb coreid %" PRId32
" -> %" PRId32
, target
->gdb_service
->core
[0]
145 , target
->gdb_service
->core
[1]);
150 const struct command_registration smp_command_handlers
[] = {
153 .handler
= default_handle_smp_command
,
154 .mode
= COMMAND_EXEC
,
155 .help
= "smp handling",
160 .handler
= handle_smp_gdb_command
,
161 .mode
= COMMAND_EXEC
,
162 .help
= "display/fix current core played to gdb",
165 COMMAND_REGISTRATION_DONE
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