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riscv-openocd
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Hiroshi Ito <ito@mlb.co.jp> Linux for arm has arm generic debug option which send debug messages via 

DCC channel.


git-svn-id: svn://svn.berlios.de/openocd/trunk@1432 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-03-24 11:27:49 +00:00
parent 9d3d3297ae
commit f7f37ea289
2 changed files with 12 additions and 7 deletions
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4
doc/openocd.texi
View File

@ -2871,9 +2871,9 @@ encoding of the [M4:M0] bits of the PSR.
OpenOCD can handle certain target requests, currently debugmsg are only supported for arm7_9 and cortex_m3. OpenOCD can handle certain target requests, currently debugmsg are only supported for arm7_9 and cortex_m3.
See libdcc in the contrib dir for more details. See libdcc in the contrib dir for more details.
@itemize @bullet @itemize @bullet
@item @b{target_request debugmsgs} <@var{enable}|@var{disable}> @item @b{target_request debugmsgs} <@var{enable}|@var{disable}|@var{charmsg}>
@cindex target_request debugmsgs @cindex target_request debugmsgs
@*Enable/disable target debugmsgs requests. debugmsgs enable messages to be sent to the debugger while the target is running. @*Enable/disable target debugmsgs requests. debugmsgs enable messages to be sent to the debugger while the target is running. @var{charmsg} recives the message like linux kernel ``Kernel low-level debugging via EmbeddedICE DCC channel'' option way.
@end itemize @end itemize
@node JTAG Commands @node JTAG Commands

13
src/target/target_request.c
View File

@ -39,6 +39,7 @@
#include <string.h> #include <string.h>
command_t *target_request_cmd = NULL; command_t *target_request_cmd = NULL;
static int charmsg_mode = 0;
int target_asciimsg(target_t *target, u32 length) int target_asciimsg(target_t *target, u32 length)
{ {
@ -120,6 +121,10 @@ int target_request(target_t *target, u32 request)
{ {
target_req_cmd_t target_req_cmd = request & 0xff; target_req_cmd_t target_req_cmd = request & 0xff;
if ( charmsg_mode ) {
target_charmsg(target, target_req_cmd );
return ERROR_OK;
}
switch (target_req_cmd) switch (target_req_cmd)
{ {
case TARGET_REQ_TRACEMSG: case TARGET_REQ_TRACEMSG:
@ -268,7 +273,7 @@ int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, c
if (argc > 0) if (argc > 0)
{ {
if (!strcmp(args[0], "enable")) if (!strcmp(args[0], "enable") || !strcmp(args[0], "charmsg"))
{ {
/* don't register if this command context is already receiving */ /* don't register if this command context is already receiving */
if (!receiving) if (!receiving)
@ -276,6 +281,7 @@ int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, c
receiving = 1; receiving = 1;
add_debug_msg_receiver(cmd_ctx, target); add_debug_msg_receiver(cmd_ctx, target);
} }
charmsg_mode = !strcmp(args[0], "charmsg");
} }
else if (!strcmp(args[0], "disable")) else if (!strcmp(args[0], "disable"))
{ {
@ -288,13 +294,12 @@ int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, c
} }
else else
{ {
command_print(cmd_ctx, "usage: target_request debugmsgs ['enable'|'disable']"); command_print(cmd_ctx, "usage: target_request debugmsgs ['enable'|'disable'|'charmsg']");
} }
} }
command_print(cmd_ctx, "receiving debug messages from current target %s", command_print(cmd_ctx, "receiving debug messages from current target %s",
(receiving) ? "enabled" : "disabled"); (receiving) ? (charmsg_mode?"charmsg":"enabled") : "disabled" );
return ERROR_OK; return ERROR_OK;
} }