Commit b778b36f authored by Michel Jaouen's avatar Michel Jaouen Committed by Øyvind Harboe
Browse files

smp : infra for smp minimum support

parent 36d60ee6
......@@ -11,6 +11,9 @@
* Copyright (C) 2011 by Broadcom Corporation *
* Evan Hunter - ehunter@broadcom.com *
* *
* Copyright (C) ST-Ericsson SA 2011 *
* michel.jaouen@stericsson.com : smp minimum support *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
......@@ -39,6 +42,7 @@
#include <target/image.h>
#include <jtag/jtag.h>
#include "rtos/rtos.h"
#include "target/smp.h"
/**
......@@ -62,7 +66,7 @@ struct gdb_connection
int closed;
int busy;
int noack_mode;
bool sync; /* set flag to true if you want the next stepi to return immediately.
bool sync; /* set flag to true if you want the next stepi to return immediately.
allowing GDB to pick up a fresh set of register values from the target
without modifying the target state. */
/* We delay reporting memory write errors until next step/continue or memory
......@@ -2360,6 +2364,24 @@ static int gdb_input_inner(struct connection *connection)
"ocd_gdb_restart %s",
target_name(target));
break;
case 'j':
/* packet supported only by smp target i.e cortex_a.c*/
/* handle smp packet replying coreid played to gbd */
gdb_read_smp_packet(
connection, target,
packet, packet_size);
break;
case 'J':
/* packet supported only by smp target i.e cortex_a.c */
/* handle smp packet setting coreid to be played at next
* resume to gdb */
gdb_write_smp_packet(
connection, target,
packet, packet_size);
break;
default:
/* ignore unknown packets */
LOG_DEBUG("ignoring 0x%2.2x packet", packet[0]);
......@@ -2411,21 +2433,43 @@ static int gdb_input(struct connection *connection)
static int gdb_target_start(struct target *target, const char *port)
{
struct gdb_service *gdb_service = malloc(sizeof(struct gdb_service));
struct gdb_service *gdb_service;
int ret;
gdb_service = malloc(sizeof(struct gdb_service));
if (NULL == gdb_service)
return -ENOMEM;
gdb_service->target = target;
gdb_service->core[0] = -1;
gdb_service->core[1] = -1;
target->gdb_service = gdb_service;
return add_service("gdb",
ret = add_service("gdb",
port, 1, &gdb_new_connection, &gdb_input,
&gdb_connection_closed, gdb_service);
/* initialialize all targets gdb service with the same pointer */
{
struct target_list *head;
struct target *curr;
head = target->head;
while(head != (struct target_list*)NULL)
{
curr = head->target;
if (curr != target) curr->gdb_service = gdb_service;
head = head->next;
}
}
return ret;
}
static int gdb_target_add_one(struct target *target)
{
/* one gdb instance per smp list */
if ((target->smp) && (target->gdb_service)) return ERROR_OK;
int retval = gdb_target_start(target, gdb_port_next);
if (retval == ERROR_OK)
if (retval == ERROR_OK)
{
long portnumber;
/* If we can parse the port number
......
......@@ -30,15 +30,11 @@
#define GDB_SERVER_H
struct image;
struct reg;
#include <target/target.h>
#define GDB_BUFFER_SIZE 16384
struct gdb_service
{
struct target *target;
};
int gdb_target_add_all(struct target *target);
int gdb_register_commands(struct command_context *command_context);
......
......@@ -42,7 +42,8 @@ TARGET_CORE_SRC = \
breakpoints.c \
target.c \
target_request.c \
testee.c
testee.c \
smp.c
ARMV4_5_SRC = \
armv4_5.c \
......
......@@ -2,6 +2,9 @@
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) ST-Ericsson SA 2011 *
* michel.jaouen@stericsson.com : smp minimum support *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
......@@ -42,10 +45,11 @@ static char *watchpoint_rw_strings[] =
// monotonic counter/id-number for breakpoints and watch points
static int bpwp_unique_id;
int breakpoint_add(struct target *target, uint32_t address, uint32_t length, enum breakpoint_type type)
int breakpoint_add_internal(struct target *target, uint32_t address, uint32_t length, enum breakpoint_type type)
{
struct breakpoint *breakpoint = target->breakpoints;
struct breakpoint **breakpoint_p = &target->breakpoints;
char *reason;
int retval;
int n;
......@@ -76,9 +80,19 @@ int breakpoint_add(struct target *target, uint32_t address, uint32_t length, enu
(*breakpoint_p)->unique_id = bpwp_unique_id++;
retval = target_add_breakpoint(target, *breakpoint_p);
if (retval != ERROR_OK)
{
LOG_ERROR("could not add breakpoint");
switch (retval) {
case ERROR_OK:
break;
case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
reason = "resource not available";
goto fail;
case ERROR_TARGET_NOT_HALTED:
reason = "target running";
goto fail;
default:
reason = "unknown reason";
fail:
LOG_ERROR("can't add breakpoint: %s", reason);
free((*breakpoint_p)->orig_instr);
free(*breakpoint_p);
*breakpoint_p = NULL;
......@@ -93,6 +107,29 @@ int breakpoint_add(struct target *target, uint32_t address, uint32_t length, enu
return ERROR_OK;
}
int breakpoint_add(struct target *target, uint32_t address, uint32_t length, enum breakpoint_type type)
{
int retval = ERROR_OK;
if (target->smp)
{
struct target_list *head;
struct target *curr;
head = target->head;
while(head != (struct target_list*)NULL)
{
curr = head->target;
retval = breakpoint_add_internal(curr, address,length, type);
if (retval != ERROR_OK) return retval;
head = head->next;
}
return retval;
}
else
return(breakpoint_add_internal(target, address, length, type));
}
/* free up a breakpoint */
static void breakpoint_free(struct target *target, struct breakpoint *breakpoint_to_remove)
{
......@@ -119,7 +156,7 @@ static void breakpoint_free(struct target *target, struct breakpoint *breakpoint
free(breakpoint);
}
void breakpoint_remove(struct target *target, uint32_t address)
void breakpoint_remove_internal(struct target *target, uint32_t address)
{
struct breakpoint *breakpoint = target->breakpoints;
struct breakpoint **breakpoint_p = &target->breakpoints;
......@@ -141,8 +178,24 @@ void breakpoint_remove(struct target *target, uint32_t address)
LOG_ERROR("no breakpoint at address 0x%8.8" PRIx32 " found", address);
}
}
void breakpoint_remove(struct target *target, uint32_t address)
{
if ((target->smp))
{
struct target_list *head;
struct target *curr;
head = target->head;
while(head != (struct target_list*)NULL)
{
curr = head->target;
breakpoint_remove_internal(curr, address);
head = head->next;
}
}
else breakpoint_remove_internal(target, address);
}
void breakpoint_clear_target(struct target *target)
void breakpoint_clear_target_internal(struct target *target)
{
struct breakpoint *breakpoint;
......@@ -154,6 +207,25 @@ void breakpoint_clear_target(struct target *target)
}
}
void breakpoint_clear_target(struct target *target)
{
if (target->smp)
{
struct target_list *head;
struct target *curr;
head = target->head;
while(head != (struct target_list*)NULL)
{
curr = head->target;
breakpoint_clear_target_internal(curr);
head = head->next;
}
}
else breakpoint_clear_target_internal(target);
}
struct breakpoint* breakpoint_find(struct target *target, uint32_t address)
{
struct breakpoint *breakpoint = target->breakpoints;
......@@ -174,6 +246,7 @@ int watchpoint_add(struct target *target, uint32_t address, uint32_t length,
struct watchpoint *watchpoint = target->watchpoints;
struct watchpoint **watchpoint_p = &target->watchpoints;
int retval;
char *reason;
while (watchpoint)
{
......@@ -204,11 +277,21 @@ int watchpoint_add(struct target *target, uint32_t address, uint32_t length,
(*watchpoint_p)->unique_id = bpwp_unique_id++;
retval = target_add_watchpoint(target, *watchpoint_p);
if (retval != ERROR_OK)
{
LOG_ERROR("can't add %s watchpoint at 0x%8.8" PRIx32,
switch (retval) {
case ERROR_OK:
break;
case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
reason = "resource not available";
goto bye;
case ERROR_TARGET_NOT_HALTED:
reason = "target running";
goto bye;
default:
reason = "unrecognized error";
bye:
LOG_ERROR("can't add %s watchpoint at 0x%8.8" PRIx32 ", %s",
watchpoint_rw_strings[(*watchpoint_p)->rw],
address);
address, reason);
free (*watchpoint_p);
*watchpoint_p = NULL;
return retval;
......
/***************************************************************************
* *
* Copyright (C) ST-Ericsson SA 2011 *
* Author: Michel Jaouen <michel.jaouen@stericsson.com> for ST-Ericsson. *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "server/server.h"
#include <helper/types.h>
#include "target/target.h"
#include "server/gdb_server.h"
#include "smp.h"
/* implementation of new packet in gdb interface for smp feature */
/* */
/* j : smp status request */
/* J : smp set request */
/* */
/* jc :read core id displayed by gdb connection */
/* reply XXXXXXXX core id is int32_t , 8 hex digits */
/* */
/* Reply ENN error not supported (target not smp) */
/* */
/* JcXX set core id displayed at next gdb continue */
/* maximum 8 bytes described core id int32_t (8 hex digits) */
/* (core id -1 , reserved for returning to normal continue mode) */
/* Reply ENN error not supported(target not smp,core id out of range) */
/* Reply OK : for success */
/* */
/* handling of this packet within gdb can be done by the creation */
/* internal variable by mean of function allocate_computed_value */
/* set $_core 1 => Jc01 packet is sent */
/* print $_core => jc packet is sent and result is affected in $ */
/* Another way to test this packet is the usage of maintenance packet */
/* maint packet Jc01 */
/* maint packet jc */
static const char DIGITS[16] = "0123456789abcdef";
/* packet j :smp status request */
int gdb_read_smp_packet(struct connection *connection,
struct target *target, char *packet, int packet_size)
{
uint32_t len = sizeof(int32_t);
uint8_t *buffer;
char *hex_buffer;
int retval = ERROR_OK;
if (target->smp)
{
if (strstr(packet, "jc"))
{
hex_buffer = malloc(len * 2 + 1);
buffer = (uint8_t *)&target->gdb_service->core[0];
uint32_t i;
for (i = 0; i < 4; i++)
{
uint8_t t = buffer[i];
hex_buffer[2 * i] = DIGITS[(t >> 4) & 0xf];
hex_buffer[2 * i + 1] = DIGITS[t & 0xf];
}
gdb_put_packet(connection, hex_buffer, len * 2);
free(hex_buffer);
}
}
else
retval = gdb_put_packet(connection,"E01",3);
return retval;
}
/* J : smp set request */
int gdb_write_smp_packet(struct connection *connection,
struct target *target, char *packet, int packet_size)
{
char *separator;
int coreid = 0;
int retval = ERROR_OK;
/* skip command character */
if (target->smp)
{
if (strstr(packet, "Jc"))
{
packet+=2;
coreid = strtoul(packet, &separator, 16);
target->gdb_service->core[1] = coreid;
gdb_put_packet(connection, "OK", 2);
}
}
else
{
retval = gdb_put_packet(connection,"E01",3);
}
return ERROR_OK;
}
/***************************************************************************
* *
* Copyright (C) ST-Ericsson SA 2011 *
* Author: Michel Jaouen <michel.jaouen@stericsson.com> for ST-Ericsson. *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "server/server.h"
int gdb_read_smp_packet(struct connection *connection,
struct target *target, char *packet, int packet_size);
int gdb_write_smp_packet(struct connection *connection,
struct target *target, char *packet, int packet_size);
......@@ -17,6 +17,9 @@
* Copyright (C) 2011 by Broadcom Corporation *
* Evan Hunter - ehunter@broadcom.com *
* *
* Copyright (C) ST-Ericsson SA 2011 *
* michel.jaouen@stericsson.com : smp minimum support *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
......@@ -729,7 +732,7 @@ int target_bulk_write_memory(struct target *target,
int target_add_breakpoint(struct target *target,
struct breakpoint *breakpoint)
{
if (target->state != TARGET_HALTED) {
if ((target->state != TARGET_HALTED)&&(breakpoint->type!=BKPT_HARD)) {
LOG_WARNING("target %s is not halted", target->cmd_name);
return ERROR_TARGET_NOT_HALTED;
}
......@@ -3931,6 +3934,7 @@ static int target_configure(Jim_GetOptInfo *goi, struct target *target)
/* loop for more e*/
break;
case TCFG_ENDIAN:
if (goi->isconfigure) {
e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
......@@ -3981,7 +3985,7 @@ static int target_configure(Jim_GetOptInfo *goi, struct target *target)
if (e != JIM_OK) {
return e;
}
target->coreid = (int)w;
target->coreid = (int32_t)w;
} else {
if (goi->argc != 0) {
goto no_params;
......@@ -4893,6 +4897,61 @@ static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
return JIM_OK;
}
static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int i;
const char *targetname;
int retval,len;
struct target *target;
struct target_list *head, *curr, *new;
curr = (struct target_list*) NULL;
head = (struct target_list*) NULL;
new = (struct target_list*) NULL;
retval = 0;
LOG_DEBUG("%d",argc);
/* argv[1] = target to associate in smp
* argv[2] = target to assoicate in smp
* argv[3] ...
*/
for(i=1;i<argc;i++)
{
targetname = Jim_GetString(argv[i], &len);
target = get_target(targetname);
LOG_DEBUG("%s ",targetname);
if (target)
{
new=malloc(sizeof(struct target_list));
new->target = target;
new->next = (struct target_list*)NULL;
if (head == (struct target_list*)NULL)
{
head = new;
curr = head;
}
else
{
curr->next = new;
curr = new;
}
}
}
/* now parse the list of cpu and put the target in smp mode*/
curr=head;
while(curr!=(struct target_list *)NULL)
{
target=curr->target;
target->smp = 1;
target->head = head;
curr=curr->next;
}
return retval;
}
static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
Jim_GetOptInfo goi;
......@@ -5008,6 +5067,14 @@ static const struct command_registration target_subcommand_handlers[] = {
.help = "Returns the number of targets as an integer "
"(DEPRECATED)",
},
{
.name = "smp",
.mode = COMMAND_ANY,
.jim_handler = jim_target_smp,
.usage = "targetname1 targetname2 ...",
.help = "gather several target in a smp list"
},
COMMAND_REGISTRATION_DONE
};
......
......@@ -11,6 +11,9 @@
* Copyright (C) 2011 by Broadcom Corporation *
* Evan Hunter - ehunter@broadcom.com *
* *
* Copyright (C) ST-Ericsson SA 2011 *
* michel.jaouen@stericsson.com : smp minimum support *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
......@@ -38,7 +41,7 @@ struct breakpoint;
struct watchpoint;
struct mem_param;
struct reg_param;
struct target_list;
/*
* TARGET_UNKNOWN = 0: we don't know anything about the target yet
......@@ -102,6 +105,17 @@ struct working_area
struct working_area **user;
struct working_area *next;
};
struct gdb_service
{
struct target *target;
/* field for smp display */
/* element 0 coreid currently displayed ( 1 till n) */
/* element 1 coreid to be displayed at next resume 1 till n 0 means resume
* all cores
core displayed */
int32_t core[2];
};
// target_type.h contains the full definitionof struct targe_type
struct target
......@@ -110,7 +124,7 @@ struct target
const char *cmd_name; /* tcl Name of target */
int target_number; /* DO NOT USE! field to be removed in 2010 */
struct jtag_tap *tap; /* where on the jtag chain is this */
int coreid; /* which device on the TAP? */
int32_t coreid; /* which device on the TAP? */
const char *variant; /* what variant of this chip is it? */
/**
......@@ -166,6 +180,20 @@ struct target
struct rtos *rtos; /* Instance of Real Time Operating System support */
bool rtos_auto_detect; /* A flag that indicates that the RTOS has been specified as "auto"
* and must be detected when symbols are offered */
int smp; /* add some target attributes for smp support */
struct target_list *head;
/* the gdb service is there in case of smp , we have only one gdb server
* for all smp target
* the target attached to the gdb is changing dynamically by changing
* gdb_service->target pointer */
struct gdb_service *gdb_service;
};
struct target_list {
struct target *target;
struct target_list *next;
};
/** Returns the instance-specific name of the specified target. */
......
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