* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
#include "config.h"
#endif
-#include "replacements.h"
-
+#include <target/breakpoints.h>
+#include <target/target_request.h>
+#include <target/register.h>
+#include "server.h"
+#include <flash/nor/core.h>
#include "gdb_server.h"
+#include <target/image.h>
+#include <jtag/jtag.h>
+
+
+/**
+ * @file
+ * GDB server implementation.
+ *
+ * This implements the GDB Remote Serial Protocol, over TCP connections,
+ * giving GDB access to the JTAG or other hardware debugging facilities
+ * found in most modern embedded processors.
+ */
+
+/* private connection data for GDB */
+struct gdb_connection
+{
+ char buffer[GDB_BUFFER_SIZE];
+ char *buf_p;
+ int buf_cnt;
+ int ctrl_c;
+ enum target_state frontend_state;
+ struct image *vflash_image;
+ int closed;
+ int busy;
+ int noack_mode;
+ 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
+ * write. This improves performance of gdb load significantly as the GDB packet
+ * can be replied immediately and a new GDB packet will be ready without delay
+ * (ca. 10% or so...).
+ */
+ bool mem_write_error;
+};
-#include "server.h"
-#include "log.h"
-#include "binarybuffer.h"
-#include "jtag.h"
-#include "breakpoints.h"
-#include "flash.h"
-#include "target.h"
-#include "target_request.h"
-#include "configuration.h"
-
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
#if 0
#define _DEBUG_GDB_IO_
#endif
+static struct gdb_connection *current_gdb_connection;
+
static int gdb_breakpoint_override;
static enum breakpoint_type gdb_breakpoint_override_type;
-extern int gdb_error(connection_t *connection, int retval);
-static unsigned short gdb_port;
-static const char *DIGITS = "0123456789abcdef";
+static int gdb_error(struct connection *connection, int retval);
+static unsigned short gdb_port = 3333;
+static unsigned short gdb_port_next = 0;
+static const char DIGITS[16] = "0123456789abcdef";
-static void gdb_log_callback(void *priv, const char *file, int line,
+static void gdb_log_callback(void *priv, const char *file, unsigned line,
const char *function, const char *string);
-enum gdb_detach_mode
-{
- GDB_DETACH_RESUME,
- GDB_DETACH_RESET,
- GDB_DETACH_HALT,
- GDB_DETACH_NOTHING
-};
-
-/* target behaviour on gdb detach */
-enum gdb_detach_mode detach_mode = GDB_DETACH_RESUME;
+/* number of gdb connections, mainly to suppress gdb related debugging spam
+ * in helper/log.c when no gdb connections are actually active */
+int gdb_actual_connections;
/* set if we are sending a memory map to gdb
* via qXfer:memory-map:read packet */
/* enabled by default*/
-int gdb_use_memory_map = 1;
+static int gdb_use_memory_map = 1;
/* enabled by default*/
-int gdb_flash_program = 1;
+static int gdb_flash_program = 1;
/* if set, data aborts cause an error to be reported in memory read packets
- * see the code in gdb_read_memory_packet() for further explanations */
-int gdb_report_data_abort = 0;
+ * see the code in gdb_read_memory_packet() for further explanations.
+ * Disabled by default.
+ */
+static int gdb_report_data_abort;
-int gdb_last_signal(target_t *target)
+static int gdb_last_signal(struct target *target)
{
switch (target->debug_reason)
{
}
}
-int check_pending(connection_t *connection, int timeout_s, int *got_data)
+static int check_pending(struct connection *connection,
+ int timeout_s, int *got_data)
{
/* a non-blocking socket will block if there is 0 bytes available on the socket,
* but return with as many bytes as are available immediately
*/
struct timeval tv;
fd_set read_fds;
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
int t;
- if (got_data==NULL)
+ if (got_data == NULL)
got_data=&t;
- *got_data=0;
+ *got_data = 0;
- if (gdb_con->buf_cnt>0)
+ if (gdb_con->buf_cnt > 0)
{
*got_data = 1;
return ERROR_OK;
tv.tv_sec = timeout_s;
tv.tv_usec = 0;
- if (select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
+ if (socket_select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
{
/* This can typically be because a "monitor" command took too long
* before printing any progress messages
*/
- if (timeout_s>0)
+ if (timeout_s > 0)
{
return ERROR_GDB_TIMEOUT;
} else
return ERROR_OK;
}
}
- *got_data=FD_ISSET(connection->fd, &read_fds)!=0;
+ *got_data = FD_ISSET(connection->fd, &read_fds) != 0;
return ERROR_OK;
}
-int gdb_get_char(connection_t *connection, int* next_char)
+static int gdb_get_char_inner(struct connection *connection, int* next_char)
{
- gdb_connection_t *gdb_con = connection->priv;
- int retval=ERROR_OK;
+ struct gdb_connection *gdb_con = connection->priv;
+ int retval = ERROR_OK;
#ifdef _DEBUG_GDB_IO_
char *debug_buffer;
#endif
-
- if (gdb_con->buf_cnt-- > 0)
- {
- *next_char = *(gdb_con->buf_p++);
- if (gdb_con->buf_cnt > 0)
- connection->input_pending = 1;
- else
- connection->input_pending = 0;
-
-#ifdef _DEBUG_GDB_IO_
- LOG_DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
-#endif
-
- return ERROR_OK;
- }
-
for (;;)
{
if (connection->service->type == CONNECTION_PIPE)
return retval;
gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
}
-
+
if (gdb_con->buf_cnt > 0)
{
break;
#ifdef _WIN32
errno = WSAGetLastError();
- switch(errno)
+ switch (errno)
{
case WSAEWOULDBLOCK:
usleep(1000);
exit(-1);
}
#else
- switch(errno)
+ switch (errno)
{
case EAGAIN:
usleep(1000);
return retval;
}
-int gdb_putback_char(connection_t *connection, int last_char)
+/**
+ * The cool thing about this fn is that it allows buf_p and buf_cnt to be
+ * held in registers in the inner loop.
+ *
+ * For small caches and embedded systems this is important!
+ */
+static inline int gdb_get_char_fast(struct connection *connection, int* next_char, char **buf_p, int *buf_cnt)
+{
+ int retval = ERROR_OK;
+
+ if ((*buf_cnt)-- > 0)
+ {
+ *next_char = **buf_p;
+ (*buf_p)++;
+ if (*buf_cnt > 0)
+ connection->input_pending = 1;
+ else
+ connection->input_pending = 0;
+
+#ifdef _DEBUG_GDB_IO_
+ LOG_DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
+#endif
+
+ return ERROR_OK;
+ }
+
+ struct gdb_connection *gdb_con = connection->priv;
+ gdb_con->buf_p = *buf_p;
+ gdb_con->buf_cnt = *buf_cnt;
+ retval = gdb_get_char_inner(connection, next_char);
+ *buf_p = gdb_con->buf_p;
+ *buf_cnt = gdb_con->buf_cnt;
+
+ return retval;
+}
+
+
+static int gdb_get_char(struct connection *connection, int* next_char)
{
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
+ return gdb_get_char_fast(connection, next_char, &gdb_con->buf_p, &gdb_con->buf_cnt);
+}
+
+
+static int gdb_putback_char(struct connection *connection, int last_char)
+{
+ struct gdb_connection *gdb_con = connection->priv;
if (gdb_con->buf_p > gdb_con->buffer)
{
/* The only way we can detect that the socket is closed is the first time
* we write to it, we will fail. Subsequent write operations will
* succeed. Shudder! */
-int gdb_write(connection_t *connection, void *data, int len)
+static int gdb_write(struct connection *connection, void *data, int len)
{
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
-
+
if (connection->service->type == CONNECTION_PIPE)
{
/* write to stdout */
return ERROR_SERVER_REMOTE_CLOSED;
}
-int gdb_put_packet_inner(connection_t *connection, char *buffer, int len)
+static int gdb_put_packet_inner(struct connection *connection,
+ char *buffer, int len)
{
int i;
unsigned char my_checksum = 0;
#endif
int reply;
int retval;
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
for (i = 0; i < len; i++)
my_checksum += buffer[i];
int gotdata;
for (;;)
{
- if ((retval=check_pending(connection, 0, &gotdata))!=ERROR_OK)
+ retval = check_pending(connection, 0, &gotdata);
+ if (retval != ERROR_OK)
return retval;
if (!gotdata)
break;
if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
return retval;
- if( reply == '$' ){
+ if (reply == '$') {
/* fix a problem with some IAR tools */
- gdb_putback_char( connection, reply );
+ gdb_putback_char(connection, reply);
LOG_DEBUG("Unexpected start of new packet");
break;
}
char local_buffer[1024];
local_buffer[0] = '$';
- if (len+4 <= sizeof(local_buffer))
+ if ((size_t)len + 4 <= sizeof(local_buffer))
{
/* performance gain on smaller packets by only a single call to gdb_write() */
- memcpy(local_buffer+1, buffer, len++);
+ memcpy(local_buffer + 1, buffer, len++);
local_buffer[len++] = '#';
local_buffer[len++] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[len++] = DIGITS[my_checksum & 0xf];
- if((retval = gdb_write(connection, local_buffer, len)) != ERROR_OK)
+ if ((retval = gdb_write(connection, local_buffer, len)) != ERROR_OK)
{
return retval;
}
local_buffer[1] = '#';
local_buffer[2] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[3] = DIGITS[my_checksum & 0xf];
- if((retval = gdb_write(connection, local_buffer, 1)) != ERROR_OK)
+ if ((retval = gdb_write(connection, local_buffer, 1)) != ERROR_OK)
{
return retval;
}
- if((retval = gdb_write(connection, buffer, len)) != ERROR_OK)
+ if ((retval = gdb_write(connection, buffer, len)) != ERROR_OK)
{
return retval;
}
- if((retval = gdb_write(connection, local_buffer+1, 3)) != ERROR_OK)
+ if ((retval = gdb_write(connection, local_buffer + 1, 3)) != ERROR_OK)
{
return retval;
}
log_remove_callback(gdb_log_callback, connection);
LOG_WARNING("negative reply, retrying");
}
- else if( reply == '$' ){
+ else if (reply == '$') {
LOG_ERROR("GDB missing ack(1) - assumed good");
- gdb_putback_char( connection, reply );
+ gdb_putback_char(connection, reply);
return ERROR_OK;
} else {
LOG_ERROR("unknown character(1) 0x%2.2x in reply, dropping connection", reply);
- gdb_con->closed=1;
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
}
}
- else if( reply == '$' ){
+ else if (reply == '$') {
LOG_ERROR("GDB missing ack(2) - assumed good");
- gdb_putback_char( connection, reply );
+ gdb_putback_char(connection, reply);
return ERROR_OK;
}
else
{
LOG_ERROR("unknown character(2) 0x%2.2x in reply, dropping connection", reply);
- gdb_con->closed=1;
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
}
}
return ERROR_OK;
}
-int gdb_put_packet(connection_t *connection, char *buffer, int len)
+static int gdb_put_packet(struct connection *connection, char *buffer, int len)
{
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
gdb_con->busy = 1;
int retval = gdb_put_packet_inner(connection, buffer, len);
gdb_con->busy = 0;
return retval;
}
-static __inline__ int fetch_packet(connection_t *connection, int *checksum_ok, int noack, int *len, char *buffer)
+static __inline__ int fetch_packet(struct connection *connection, int *checksum_ok, int noack, int *len, char *buffer)
{
unsigned char my_checksum = 0;
char checksum[3];
int character;
- int retval;
+ int retval = ERROR_OK;
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
my_checksum = 0;
int count = 0;
count = 0;
+
+ /* move this over into local variables to use registers and give the
+ * more freedom to optimize */
+ char *buf_p = gdb_con->buf_p;
+ int buf_cnt = gdb_con->buf_cnt;
+
for (;;)
{
/* The common case is that we have an entire packet with no escape chars.
* We need to leave at least 2 bytes in the buffer to have
* gdb_get_char() update various bits and bobs correctly.
*/
- if ((gdb_con->buf_cnt > 2) && ((gdb_con->buf_cnt+count) < *len))
+ if ((buf_cnt > 2) && ((buf_cnt + count) < *len))
{
/* The compiler will struggle a bit with constant propagation and
* aliasing, so we help it by showing that these values do not
* change inside the loop
*/
int i;
- char *buf = gdb_con->buf_p;
- int run = gdb_con->buf_cnt - 2;
+ char *buf = buf_p;
+ int run = buf_cnt - 2;
i = 0;
int done = 0;
while (i < run)
buffer[count++] = character & 0xff;
}
}
- gdb_con->buf_p += i;
- gdb_con->buf_cnt -= i;
+ buf_p += i;
+ buf_cnt -= i;
if (done)
break;
}
if (count > *len)
{
LOG_ERROR("packet buffer too small");
- return ERROR_GDB_BUFFER_TOO_SMALL;
+ retval = ERROR_GDB_BUFFER_TOO_SMALL;
+ break;
}
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
+ retval = gdb_get_char_fast(connection, &character, &buf_p, &buf_cnt);
+ if (retval != ERROR_OK)
+ break;
if (character == '#')
break;
/* data transmitted in binary mode (X packet)
* uses 0x7d as escape character */
my_checksum += character & 0xff;
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
+
+ retval = gdb_get_char_fast(connection, &character, &buf_p, &buf_cnt);
+ if (retval != ERROR_OK)
+ break;
+
my_checksum += character & 0xff;
buffer[count++] = (character ^ 0x20) & 0xff;
}
}
}
+ gdb_con->buf_p = buf_p;
+ gdb_con->buf_cnt = buf_cnt;
+
+ if (retval != ERROR_OK)
+ return retval;
+
*len = count;
if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
if (!noack)
{
- *checksum_ok=(my_checksum == strtoul(checksum, NULL, 16));
+ *checksum_ok = (my_checksum == strtoul(checksum, NULL, 16));
}
return ERROR_OK;
}
-int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
+static int gdb_get_packet_inner(struct connection *connection,
+ char *buffer, int *len)
{
int character;
int retval;
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
while (1)
{
break;
case '+':
/* gdb sends a dummy ack '+' at every remote connect - see remote_start_remote (remote.c)
- * incase anyone tries to debug why they receive this warning every time */
+ * in case anyone tries to debug why they receive this warning every time */
LOG_WARNING("acknowledgment received, but no packet pending");
break;
case '-':
- int checksum_ok;
+ int checksum_ok = 0;
/* explicit code expansion here to get faster inlined code in -O3 by not
* calculating checksum
*/
if (gdb_con->noack_mode)
{
- if ((retval=fetch_packet(connection, &checksum_ok, 1, len, buffer))!=ERROR_OK)
+ if ((retval = fetch_packet(connection, &checksum_ok, 1, len, buffer)) != ERROR_OK)
return retval;
} else
{
- if ((retval=fetch_packet(connection, &checksum_ok, 0, len, buffer))!=ERROR_OK)
+ if ((retval = fetch_packet(connection, &checksum_ok, 0, len, buffer)) != ERROR_OK)
return retval;
}
return ERROR_OK;
}
-int gdb_get_packet(connection_t *connection, char *buffer, int *len)
+static int gdb_get_packet(struct connection *connection, char *buffer, int *len)
{
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
gdb_con->busy = 1;
int retval = gdb_get_packet_inner(connection, buffer, len);
gdb_con->busy = 0;
return retval;
}
-int gdb_output_con(connection_t *connection, const char* line)
+static int gdb_output_con(struct connection *connection, const char* line)
{
char *hex_buffer;
int i, bin_size;
return ERROR_GDB_BUFFER_TOO_SMALL;
hex_buffer[0] = 'O';
- for (i=0; i<bin_size; i++)
+ for (i = 0; i < bin_size; i++)
snprintf(hex_buffer + 1 + i*2, 3, "%2.2x", line[i]);
- hex_buffer[bin_size*2+1] = 0;
+ hex_buffer[bin_size*2 + 1] = 0;
int retval = gdb_put_packet(connection, hex_buffer, bin_size*2 + 1);
return retval;
}
-int gdb_output(struct command_context_s *context, const char* line)
+static int gdb_output(struct command_context *context, const char* line)
{
/* this will be dumped to the log and also sent as an O packet if possible */
LOG_USER_N("%s", line);
}
-static void gdb_frontend_halted(struct target_s *target, connection_t *connection)
+static void gdb_frontend_halted(struct target *target, struct connection *connection)
{
- gdb_connection_t *gdb_connection = connection->priv;
+ struct gdb_connection *gdb_connection = connection->priv;
- /* In the GDB protocol when we are stepping or coninuing execution,
+ /* In the GDB protocol when we are stepping or continuing execution,
* we have a lingering reply. Upon receiving a halted event
* when we have that lingering packet, we reply to the original
* step or continue packet.
}
}
-int gdb_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
+static int gdb_target_callback_event_handler(struct target *target,
+ enum target_event event, void *priv)
{
int retval;
- connection_t *connection = priv;
+ struct connection *connection = priv;
- target_handle_event( target, event );
+ target_handle_event(target, event);
switch (event)
{
- case TARGET_EVENT_EARLY_HALTED:
+ case TARGET_EVENT_GDB_HALT:
gdb_frontend_halted(target, connection);
break;
case TARGET_EVENT_HALTED:
target_call_event_callbacks(target, TARGET_EVENT_GDB_END);
break;
case TARGET_EVENT_GDB_FLASH_ERASE_START:
- target_handle_event( target, TARGET_EVENT_OLD_gdb_program_config );
- if((retval = jtag_execute_queue()) != ERROR_OK)
+ target_handle_event(target, TARGET_EVENT_OLD_gdb_program_config);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
{
return retval;
}
return ERROR_OK;
}
-int gdb_new_connection(connection_t *connection)
+static int gdb_new_connection(struct connection *connection)
{
- gdb_connection_t *gdb_connection = malloc(sizeof(gdb_connection_t));
- gdb_service_t *gdb_service = connection->service->priv;
+ struct gdb_connection *gdb_connection = malloc(sizeof(struct gdb_connection));
+ struct gdb_service *gdb_service = connection->service->priv;
int retval;
int initial_ack;
gdb_connection->closed = 0;
gdb_connection->busy = 0;
gdb_connection->noack_mode = 0;
+ gdb_connection->sync = true;
+ gdb_connection->mem_write_error = false;
/* send ACK to GDB for debug request */
gdb_write(connection, "+", 1);
/* register callback to be informed about target events */
target_register_event_callback(gdb_target_callback_event_handler, connection);
- /* a gdb session just attached, try to put the target in halt mode.
- *
- * DANGER!!!!
- *
- * If the halt fails(e.g. target needs a reset, JTAG communication not
- * working, etc.), then the GDB connect will succeed as
- * the get_gdb_reg_list() will lie and return a register list with
- * dummy values.
- *
- * This allows GDB monitor commands to be run from a GDB init script to
- * initialize the target
- *
- * Also, since the halt() is asynchronous target connect will be
- * instantaneous and thus avoiding annoying timeout problems during
- * connect.
- */
- target_halt(gdb_service->target);
- /* FIX!!!! could extended-remote work better here?
- *
- * wait a tiny bit for halted state or we just continue. The
- * GDB register packet will then contain garbage
- */
- target_wait_state(gdb_service->target, TARGET_HALTED, 500);
-
/* remove the initial ACK from the incoming buffer */
if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
return retval;
*/
if (initial_ack != '+')
gdb_putback_char(connection, initial_ack);
- target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_ATTACH );
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_ATTACH);
+
+ if (gdb_use_memory_map)
+ {
+ /* Connect must fail if the memory map can't be set up correctly.
+ *
+ * This will cause an auto_probe to be invoked, which is either
+ * a no-op or it will fail when the target isn't ready(e.g. not halted).
+ */
+ int i;
+ for (i = 0; i < flash_get_bank_count(); i++)
+ {
+ struct flash_bank *p;
+ retval = get_flash_bank_by_num(i, &p);
+ if (retval != ERROR_OK)
+ {
+ LOG_ERROR("Connect failed. Consider setting up a gdb-attach event for the target to prepare target for GDB connect.");
+ return retval;
+ }
+ }
+ }
+
+ gdb_actual_connections++;
+ LOG_DEBUG("New GDB Connection: %d, Target %s, state: %s",
+ gdb_actual_connections,
+ target_name(gdb_service->target),
+ target_state_name(gdb_service->target));
+
return ERROR_OK;
}
-int gdb_connection_closed(connection_t *connection)
+static int gdb_connection_closed(struct connection *connection)
{
- gdb_service_t *gdb_service = connection->service->priv;
- gdb_connection_t *gdb_connection = connection->priv;
+ struct gdb_service *gdb_service = connection->service->priv;
+ struct gdb_connection *gdb_connection = connection->priv;
+
+ /* we're done forwarding messages. Tear down callback before
+ * cleaning up connection.
+ */
+ log_remove_callback(gdb_log_callback, connection);
+
+ gdb_actual_connections--;
+ LOG_DEBUG("GDB Close, Target: %s, state: %s, gdb_actual_connections=%d",
+ target_name(gdb_service->target),
+ target_state_name(gdb_service->target),
+ gdb_actual_connections);
/* see if an image built with vFlash commands is left */
if (gdb_connection->vflash_image)
LOG_ERROR("BUG: connection->priv == NULL");
}
+
target_unregister_event_callback(gdb_target_callback_event_handler, connection);
+
target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_END);
- log_remove_callback(gdb_log_callback, connection);
- target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_DETACH );
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_DETACH);
return ERROR_OK;
}
-void gdb_send_error(connection_t *connection, u8 the_error)
+static void gdb_send_error(struct connection *connection, uint8_t the_error)
{
char err[4];
- snprintf(err, 4, "E%2.2X", the_error );
+ snprintf(err, 4, "E%2.2X", the_error);
gdb_put_packet(connection, err, 3);
}
-int gdb_last_signal_packet(connection_t *connection, target_t *target, char* packet, int packet_size)
+static int gdb_last_signal_packet(struct connection *connection,
+ struct target *target, char* packet, int packet_size)
{
char sig_reply[4];
int signal;
return ERROR_OK;
}
-static int gdb_reg_pos(target_t *target, int pos, int len)
+static int gdb_reg_pos(struct target *target, int pos, int len)
{
if (target->endianness == TARGET_LITTLE_ENDIAN)
return pos;
* register might be non-divisible by 8(a byte), in which
* case an entire byte is shown.
*
- * NB! the format on the wire is the target endianess
+ * NB! the format on the wire is the target endianness
*
* The format of reg->value is little endian
*
*/
-void gdb_str_to_target(target_t *target, char *tstr, reg_t *reg)
+static void gdb_str_to_target(struct target *target,
+ char *tstr, struct reg *reg)
{
int i;
- u8 *buf;
+ uint8_t *buf;
int buf_len;
buf = reg->value;
- buf_len = CEIL(reg->size, 8);
+ buf_len = DIV_ROUND_UP(reg->size, 8);
for (i = 0; i < buf_len; i++)
{
int j = gdb_reg_pos(target, i, buf_len);
tstr[i*2] = DIGITS[(buf[j]>>4) & 0xf];
- tstr[i*2+1] = DIGITS[buf[j]&0xf];
+ tstr[i*2 + 1] = DIGITS[buf[j]&0xf];
}
}
-static int hextoint(char c)
+static int hextoint(int c)
{
if (c>='0'&&c<='9')
{
return c-'0';
}
- c=toupper(c);
+ c = toupper(c);
if (c>='A'&&c<='F')
{
return c-'A'+10;
}
/* copy over in register buffer */
-void gdb_target_to_reg(target_t *target, char *tstr, int str_len, u8 *bin)
+static void gdb_target_to_reg(struct target *target,
+ char *tstr, int str_len, uint8_t *bin)
{
if (str_len % 2)
{
}
int i;
- for (i = 0; i < str_len; i+=2)
+ for (i = 0; i < str_len; i += 2)
{
- u8 t = hextoint(tstr[i])<<4;
- t |= hextoint(tstr[i+1]);
+ uint8_t t = hextoint(tstr[i]) << 4;
+ t |= hextoint(tstr[i + 1]);
int j = gdb_reg_pos(target, i/2, str_len/2);
bin[j] = t;
}
}
-int gdb_get_registers_packet(connection_t *connection, target_t *target, char* packet, int packet_size)
+static int gdb_get_registers_packet(struct connection *connection,
+ struct target *target, char* packet, int packet_size)
{
- reg_t **reg_list;
+ struct reg **reg_list;
int reg_list_size;
int retval;
int reg_packet_size = 0;
LOG_DEBUG("-");
#endif
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
return gdb_error(connection, retval);
}
reg_packet_size += reg_list[i]->size;
}
- reg_packet = malloc(CEIL(reg_packet_size, 8) * 2);
+ reg_packet = malloc(DIV_ROUND_UP(reg_packet_size, 8) * 2);
reg_packet_p = reg_packet;
for (i = 0; i < reg_list_size; i++)
{
gdb_str_to_target(target, reg_packet_p, reg_list[i]);
- reg_packet_p += CEIL(reg_list[i]->size, 8) * 2;
+ reg_packet_p += DIV_ROUND_UP(reg_list[i]->size, 8) * 2;
}
#ifdef _DEBUG_GDB_IO_
{
char *reg_packet_p;
- reg_packet_p = strndup(reg_packet, CEIL(reg_packet_size, 8) * 2);
+ reg_packet_p = strndup(reg_packet, DIV_ROUND_UP(reg_packet_size, 8) * 2);
LOG_DEBUG("reg_packet: %s", reg_packet_p);
free(reg_packet_p);
}
#endif
- gdb_put_packet(connection, reg_packet, CEIL(reg_packet_size, 8) * 2);
+ gdb_put_packet(connection, reg_packet, DIV_ROUND_UP(reg_packet_size, 8) * 2);
free(reg_packet);
free(reg_list);
return ERROR_OK;
}
-int gdb_set_registers_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_set_registers_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
int i;
- reg_t **reg_list;
+ struct reg **reg_list;
int reg_list_size;
int retval;
char *packet_p;
return ERROR_SERVER_REMOTE_CLOSED;
}
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
return gdb_error(connection, retval);
}
packet_p = packet;
for (i = 0; i < reg_list_size; i++)
{
- u8 *bin_buf;
- int chars = (CEIL(reg_list[i]->size, 8) * 2);
+ uint8_t *bin_buf;
+ int chars = (DIV_ROUND_UP(reg_list[i]->size, 8) * 2);
if (packet_p + chars > packet + packet_size)
{
LOG_ERROR("BUG: register packet is too small for registers");
}
- reg_arch_type_t *arch_type;
- bin_buf = malloc(CEIL(reg_list[i]->size, 8));
+ bin_buf = malloc(DIV_ROUND_UP(reg_list[i]->size, 8));
gdb_target_to_reg(target, packet_p, chars, bin_buf);
- /* get register arch_type, and call set method */
- arch_type = register_get_arch_type(reg_list[i]->arch_type);
-
- arch_type->set(reg_list[i], bin_buf);
+ reg_list[i]->type->set(reg_list[i], bin_buf);
/* advance packet pointer */
packet_p += chars;
free(bin_buf);
}
- /* free reg_t *reg_list[] array allocated by get_gdb_reg_list */
+ /* free struct reg *reg_list[] array allocated by get_gdb_reg_list */
free(reg_list);
gdb_put_packet(connection, "OK", 2);
return ERROR_OK;
}
-int gdb_get_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_get_register_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
char *reg_packet;
int reg_num = strtoul(packet + 1, NULL, 16);
- reg_t **reg_list;
+ struct reg **reg_list;
int reg_list_size;
int retval;
LOG_DEBUG("-");
#endif
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
return gdb_error(connection, retval);
}
exit(-1);
}
- reg_packet = malloc(CEIL(reg_list[reg_num]->size, 8) * 2);
+ reg_packet = malloc(DIV_ROUND_UP(reg_list[reg_num]->size, 8) * 2);
gdb_str_to_target(target, reg_packet, reg_list[reg_num]);
- gdb_put_packet(connection, reg_packet, CEIL(reg_list[reg_num]->size, 8) * 2);
+ gdb_put_packet(connection, reg_packet, DIV_ROUND_UP(reg_list[reg_num]->size, 8) * 2);
free(reg_list);
free(reg_packet);
return ERROR_OK;
}
-int gdb_set_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_set_register_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
char *separator;
- u8 *bin_buf;
+ uint8_t *bin_buf;
int reg_num = strtoul(packet + 1, &separator, 16);
- reg_t **reg_list;
+ struct reg **reg_list;
int reg_list_size;
int retval;
- reg_arch_type_t *arch_type;
LOG_DEBUG("-");
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
return gdb_error(connection, retval);
}
}
/* convert from GDB-string (target-endian) to hex-string (big-endian) */
- bin_buf = malloc(CEIL(reg_list[reg_num]->size, 8));
- int chars = (CEIL(reg_list[reg_num]->size, 8) * 2);
+ bin_buf = malloc(DIV_ROUND_UP(reg_list[reg_num]->size, 8));
+ int chars = (DIV_ROUND_UP(reg_list[reg_num]->size, 8) * 2);
/* fix!!! add some sanity checks on packet size here */
gdb_target_to_reg(target, separator + 1, chars, bin_buf);
- /* get register arch_type, and call set method */
- arch_type = register_get_arch_type(reg_list[reg_num]->arch_type);
- arch_type->set(reg_list[reg_num], bin_buf);
+ reg_list[reg_num]->type->set(reg_list[reg_num], bin_buf);
gdb_put_packet(connection, "OK", 2);
return ERROR_OK;
}
-int gdb_error(connection_t *connection, int retval)
+static int gdb_error(struct connection *connection, int retval)
{
switch (retval)
{
*
* 8191 bytes by the looks of it. Why 8191 bytes instead of 8192?????
*/
-int gdb_read_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_read_memory_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
- u8 *buffer;
+ uint8_t *buffer;
char *hex_buffer;
int retval = ERROR_OK;
return ERROR_SERVER_REMOTE_CLOSED;
}
- len = strtoul(separator+1, NULL, 16);
+ len = strtoul(separator + 1, NULL, 16);
buffer = malloc(len);
- LOG_DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
retval = target_read_buffer(target, addr, len, buffer);
- if ((retval!=ERROR_OK)&&!gdb_report_data_abort)
+ if ((retval != ERROR_OK)&&!gdb_report_data_abort)
{
/* TODO : Here we have to lie and send back all zero's lest stack traces won't work.
* At some point this might be fixed in GDB, in which case this code can be removed.
* gained by involving the user in this problem that hopefully will get resolved
* eventually
*
- * http://sourceware.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2395
+ * http://sourceware.org/cgi-bin/gnatsweb.pl?cmd = view%20audit-trail&database = gdb&pr = 2395
*
* For now, the default is to fix up things to make current GDB versions work.
* This can be overwritten using the gdb_report_data_abort <'enable'|'disable'> command.
{
hex_buffer = malloc(len * 2 + 1);
- int i;
+ uint32_t i;
for (i = 0; i < len; i++)
{
- u8 t = buffer[i];
+ uint8_t t = buffer[i];
hex_buffer[2 * i] = DIGITS[(t >> 4) & 0xf];
hex_buffer[2 * i + 1] = DIGITS[t & 0xf];
}
return retval;
}
-int gdb_write_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_write_memory_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
- u8 *buffer;
+ uint8_t *buffer;
- int i;
+ uint32_t i;
int retval;
/* skip command character */
return ERROR_SERVER_REMOTE_CLOSED;
}
- len = strtoul(separator+1, &separator, 16);
+ len = strtoul(separator + 1, &separator, 16);
if (*(separator++) != ':')
{
buffer = malloc(len);
- LOG_DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
{
- u32 tmp;
- sscanf(separator + 2*i, "%2x", &tmp);
+ uint32_t tmp;
+ sscanf(separator + 2*i, "%2" SCNx32 , &tmp);
buffer[i] = tmp;
}
return retval;
}
-int gdb_write_memory_binary_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_write_memory_binary_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
- int retval;
+ int retval = ERROR_OK;
/* skip command character */
packet++;
return ERROR_SERVER_REMOTE_CLOSED;
}
- len = strtoul(separator+1, &separator, 16);
+ len = strtoul(separator + 1, &separator, 16);
if (*(separator++) != ':')
{
return ERROR_SERVER_REMOTE_CLOSED;
}
- retval = ERROR_OK;
- if (len)
- {
- LOG_DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ struct gdb_connection *gdb_connection = connection->priv;
- retval = target_write_buffer(target, addr, len, (u8*)separator);
+ if (gdb_connection->mem_write_error)
+ {
+ retval = ERROR_FAIL;
+ /* now that we have reported the memory write error, we can clear the condition */
+ gdb_connection->mem_write_error = false;
}
+ /* By replying the packet *immediately* GDB will send us a new packet
+ * while we write the last one to the target.
+ */
if (retval == ERROR_OK)
{
gdb_put_packet(connection, "OK", 2);
return retval;
}
+ if (len)
+ {
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
+
+ retval = target_write_buffer(target, addr, len, (uint8_t*)separator);
+ if (retval != ERROR_OK)
+ {
+ gdb_connection->mem_write_error = true;
+ }
+ }
+
return ERROR_OK;
}
-int gdb_step_continue_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_step_continue_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
int current = 0;
- u32 address = 0x0;
- int retval=ERROR_OK;
+ uint32_t address = 0x0;
+ int retval = ERROR_OK;
LOG_DEBUG("-");
if (packet[0] == 'c')
{
LOG_DEBUG("continue");
- target_handle_event( target, TARGET_EVENT_OLD_pre_resume );
- retval=target_resume(target, current, address, 0, 0); /* resume at current address, don't handle breakpoints, not debugging */
+ target_handle_event(target, TARGET_EVENT_OLD_pre_resume);
+ retval = target_resume(target, current, address, 0, 0); /* resume at current address, don't handle breakpoints, not debugging */
}
else if (packet[0] == 's')
{
LOG_DEBUG("step");
- retval=target->type->step(target, current, address, 0); /* step at current or address, don't handle breakpoints */
+ /* step at current or address, don't handle breakpoints */
+ retval = target_step(target, current, address, 0);
}
return retval;
}
-int gdb_breakpoint_watchpoint_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_breakpoint_watchpoint_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
int type;
enum breakpoint_type bp_type = BKPT_SOFT /* dummy init to avoid warning */;
- enum watchpoint_rw wp_type;
- u32 address;
- u32 size;
+ enum watchpoint_rw wp_type = WPT_READ /* dummy init to avoid warning */;
+ uint32_t address;
+ uint32_t size;
char *separator;
int retval;
wp_type = WPT_READ;
else if (type == 4) /* access watchpoint */
wp_type = WPT_ACCESS;
+ else
+ {
+ LOG_ERROR("invalid gdb watch/breakpoint type(%d), dropping connection", type);
+ return ERROR_SERVER_REMOTE_CLOSED;
+ }
+
- if (gdb_breakpoint_override&&((bp_type==BKPT_SOFT)||(bp_type==BKPT_HARD)))
+ if (gdb_breakpoint_override && ((bp_type == BKPT_SOFT)||(bp_type == BKPT_HARD)))
{
- bp_type=gdb_breakpoint_override_type;
+ bp_type = gdb_breakpoint_override_type;
}
if (*separator != ',')
return ERROR_SERVER_REMOTE_CLOSED;
}
- address = strtoul(separator+1, &separator, 16);
+ address = strtoul(separator + 1, &separator, 16);
if (*separator != ',')
{
return ERROR_SERVER_REMOTE_CLOSED;
}
- size = strtoul(separator+1, &separator, 16);
+ size = strtoul(separator + 1, &separator, 16);
switch (type)
{
{
if (packet[0] == 'Z')
{
- if ((retval = watchpoint_add(target, address, size, type-2, 0, 0xffffffffu)) != ERROR_OK)
+ if ((retval = watchpoint_add(target, address, size, wp_type, 0, 0xffffffffu)) != ERROR_OK)
{
if ((retval = gdb_error(connection, retval)) != ERROR_OK)
return retval;
return ERROR_OK;
}
-/* print out a string and allocate more space as needed, mainly used for XML at this point */
-void xml_printf(int *retval, char **xml, int *pos, int *size, const char *fmt, ...)
+/* print out a string and allocate more space as needed,
+ * mainly used for XML at this point
+ */
+static void xml_printf(int *retval, char **xml, int *pos, int *size,
+ const char *fmt, ...)
{
if (*retval != ERROR_OK)
{
if (*separator != ',')
return -1;
- *len = strtoul(separator+1, NULL, 16);
+ *len = strtoul(separator + 1, NULL, 16);
return 0;
}
-int gdb_calc_blocksize(flash_bank_t *bank)
-{
- int i;
- int block_size = 0xffffffff;
-
- /* loop through all sectors and return smallest sector size */
-
- for (i = 0; i < bank->num_sectors; i++)
- {
- if (bank->sectors[i].size < block_size)
- block_size = bank->sectors[i].size;
- }
-
- return block_size;
-}
-
static int compare_bank (const void * a, const void * b)
{
- flash_bank_t *b1, *b2;
- b1=*((flash_bank_t **)a);
- b2=*((flash_bank_t **)b);
+ struct flash_bank *b1, *b2;
+ b1=*((struct flash_bank **)a);
+ b2=*((struct flash_bank **)b);
- if (b1->base==b2->base)
+ if (b1->base == b2->base)
{
return 0;
- } else if (b1->base>b2->base)
+ } else if (b1->base > b2->base)
{
return 1;
} else
}
}
-int gdb_query_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_memory_map(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
+{
+ /* We get away with only specifying flash here. Regions that are not
+ * specified are treated as if we provided no memory map(if not we
+ * could detect the holes and mark them as RAM).
+ * Normally we only execute this code once, but no big deal if we
+ * have to regenerate it a couple of times.
+ */
+
+ struct flash_bank *p;
+ char *xml = NULL;
+ int size = 0;
+ int pos = 0;
+ int retval = ERROR_OK;
+ struct flash_bank **banks;
+ int offset;
+ int length;
+ char *separator;
+ uint32_t ram_start = 0;
+ int i;
+
+ /* skip command character */
+ packet += 23;
+
+ offset = strtoul(packet, &separator, 16);
+ length = strtoul(separator + 1, &separator, 16);
+
+ xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
+
+ /* Sort banks in ascending order. We need to report non-flash
+ * memory as ram (or rather read/write) by default for GDB, since
+ * it has no concept of non-cacheable read/write memory (i/o etc).
+ *
+ * FIXME Most non-flash addresses are *NOT* RAM! Don't lie.
+ * Current versions of GDB assume unlisted addresses are RAM...
+ */
+ banks = malloc(sizeof(struct flash_bank *)*flash_get_bank_count());
+
+ for (i = 0; i < flash_get_bank_count(); i++) {
+ retval = get_flash_bank_by_num(i, &p);
+ if (retval != ERROR_OK)
+ {
+ free(banks);
+ gdb_send_error(connection, retval);
+ return retval;
+ }
+ banks[i] = p;
+ }
+
+ qsort(banks, flash_get_bank_count(), sizeof(struct flash_bank *),
+ compare_bank);
+
+ for (i = 0; i < flash_get_bank_count(); i++) {
+ int j;
+ unsigned sector_size = 0;
+ uint32_t start, end;
+
+ p = banks[i];
+ start = p->base;
+ end = p->base + p->size;
+
+ if (ram_start < p->base)
+ xml_printf(&retval, &xml, &pos, &size,
+ "<memory type=\"ram\" start=\"0x%x\" "
+ "length=\"0x%x\"/>\n",
+ ram_start, p->base - ram_start);
+
+ /* Report adjacent groups of same-size sectors. So for
+ * example top boot CFI flash will list an initial region
+ * with several large sectors (maybe 128KB) and several
+ * smaller ones at the end (maybe 32KB). STR7 will have
+ * regions with 8KB, 32KB, and 64KB sectors; etc.
+ */
+ for (j = 0; j < p->num_sectors; j++) {
+ unsigned group_len;
+
+ /* Maybe start a new group of sectors. */
+ if (sector_size == 0) {
+ start = p->base + p->sectors[j].offset;
+ xml_printf(&retval, &xml, &pos, &size,
+ "<memory type=\"flash\" "
+ "start=\"0x%x\" ",
+ start);
+ sector_size = p->sectors[j].size;
+ }
+
+ /* Does this finish a group of sectors?
+ * If not, continue an already-started group.
+ */
+ if (j == p->num_sectors -1)
+ group_len = (p->base + p->size) - start;
+ else if (p->sectors[j + 1].size != sector_size)
+ group_len = p->base + p->sectors[j + 1].offset
+ - start;
+ else
+ continue;
+
+ xml_printf(&retval, &xml, &pos, &size,
+ "length=\"0x%x\">\n"
+ "<property name=\"blocksize\">"
+ "0x%x</property>\n"
+ "</memory>\n",
+ group_len,
+ sector_size);
+ sector_size = 0;
+ }
+
+ ram_start = p->base + p->size;
+ }
+
+ if (ram_start != 0)
+ xml_printf(&retval, &xml, &pos, &size,
+ "<memory type=\"ram\" start=\"0x%x\" "
+ "length=\"0x%x\"/>\n",
+ ram_start, 0-ram_start);
+ /* ELSE a flash chip could be at the very end of the 32 bit address
+ * space, in which case ram_start will be precisely 0
+ */
+
+ free(banks);
+ banks = NULL;
+
+ xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");
+
+ if (retval != ERROR_OK) {
+ gdb_send_error(connection, retval);
+ return retval;
+ }
+
+ if (offset + length > pos)
+ length = pos - offset;
+
+ char *t = malloc(length + 1);
+ t[0] = 'l';
+ memcpy(t + 1, xml + offset, length);
+ gdb_put_packet(connection, t, length + 1);
+
+ free(t);
+ free(xml);
+ return ERROR_OK;
+}
+
+static int gdb_query_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
- command_context_t *cmd_ctx = connection->cmd_ctx;
- gdb_connection_t *gdb_connection = connection->priv;
+ struct command_context *cmd_ctx = connection->cmd_ctx;
+ struct gdb_connection *gdb_connection = connection->priv;
if (strstr(packet, "qRcmd,"))
{
char *cmd;
int i;
cmd = malloc((packet_size - 6)/2 + 1);
- for (i=0; i < (packet_size - 6)/2; i++)
+ for (i = 0; i < (packet_size - 6)/2; i++)
{
- u32 tmp;
- sscanf(packet + 6 + 2*i, "%2x", &tmp);
+ uint32_t tmp;
+ sscanf(packet + 6 + 2*i, "%2" SCNx32 , &tmp);
cmd[i] = tmp;
}
cmd[(packet_size - 6)/2] = 0x0;
/* We want to print all debug output to GDB connection */
log_add_callback(gdb_log_callback, connection);
target_call_timer_callbacks_now();
+ /* some commands need to know the GDB connection, make note of current
+ * GDB connection. */
+ current_gdb_connection = gdb_connection;
command_run_line(cmd_ctx, cmd);
+ current_gdb_connection = NULL;
target_call_timer_callbacks_now();
log_remove_callback(gdb_log_callback, connection);
free(cmd);
int retval;
char gdb_reply[10];
char *separator;
- u32 checksum;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t checksum;
+ uint32_t addr = 0;
+ uint32_t len = 0;
/* skip command character */
packet += 5;
if (retval == ERROR_OK)
{
- snprintf(gdb_reply, 10, "C%8.8x", checksum);
+ snprintf(gdb_reply, 10, "C%8.8" PRIx32 "", checksum);
gdb_put_packet(connection, gdb_reply, 9);
}
else
xml_printf(&retval, &buffer, &pos, &size,
"PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-;QStartNoAckMode+",
- (GDB_BUFFER_SIZE - 1), ((gdb_use_memory_map == 1)&&(flash_get_bank_count()>0)) ? '+' : '-');
+ (GDB_BUFFER_SIZE - 1), ((gdb_use_memory_map == 1) && (flash_get_bank_count() > 0)) ? '+' : '-');
if (retval != ERROR_OK)
{
return ERROR_OK;
}
- else if (strstr(packet, "qXfer:memory-map:read::")&&(flash_get_bank_count()>0))
- {
- /* We get away with only specifying flash here. Regions that are not
- * specified are treated as if we provided no memory map(if not we
- * could detect the holes and mark them as RAM).
- * Normally we only execute this code once, but no big deal if we
- * have to regenerate it a couple of times. */
-
- flash_bank_t *p;
- char *xml = NULL;
- int size = 0;
- int pos = 0;
- int retval = ERROR_OK;
-
- int offset;
- int length;
- char *separator;
- int blocksize;
-
- /* skip command character */
- packet += 23;
-
- offset = strtoul(packet, &separator, 16);
- length = strtoul(separator + 1, &separator, 16);
-
- xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
-
- /*
- sort banks in ascending order, we need to make non-flash memory be ram(or rather
- read/write) by default for GDB.
- GDB does not have a concept of non-cacheable read/write memory.
- */
- flash_bank_t **banks=malloc(sizeof(flash_bank_t *)*flash_get_bank_count());
- int i;
-
- for (i=0; i<flash_get_bank_count(); i++)
- {
- p = get_flash_bank_by_num(i);
- if (p == NULL)
- {
- free(banks);
- retval = ERROR_FAIL;
- gdb_send_error(connection, retval);
- return retval;
- }
- banks[i]=p;
- }
-
- qsort(banks, flash_get_bank_count(), sizeof(flash_bank_t *), compare_bank);
-
- u32 ram_start=0;
- for (i=0; i<flash_get_bank_count(); i++)
- {
- p = banks[i];
-
- if (ram_start<p->base)
- {
- xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
- ram_start, p->base-ram_start);
- }
-
- /* if device has uneven sector sizes, eg. str7, lpc
- * we pass the smallest sector size to gdb memory map */
- blocksize = gdb_calc_blocksize(p);
-
- xml_printf(&retval, &xml, &pos, &size, "<memory type=\"flash\" start=\"0x%x\" length=\"0x%x\">\n" \
- "<property name=\"blocksize\">0x%x</property>\n" \
- "</memory>\n", \
- p->base, p->size, blocksize);
- ram_start=p->base+p->size;
- }
- if (ram_start!=0)
- {
- xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
- ram_start, 0-ram_start);
- } else
- {
- /* a flash chip could be at the very end of the 32 bit address space, in which case
- ram_start will be precisely 0 */
- }
-
- free(banks);
- banks = NULL;
-
- xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");
-
- if (retval != ERROR_OK)
- {
- gdb_send_error(connection, retval);
- return retval;
- }
-
- if (offset + length > pos)
- {
- length = pos - offset;
- }
-
- char *t = malloc(length + 1);
- t[0] = 'l';
- memcpy(t + 1, xml + offset, length);
- gdb_put_packet(connection, t, length + 1);
-
- free(t);
- free(xml);
- return ERROR_OK;
- }
+ else if (strstr(packet, "qXfer:memory-map:read::")
+ && (flash_get_bank_count() > 0))
+ return gdb_memory_map(connection, target, packet, packet_size);
else if (strstr(packet, "qXfer:features:read:"))
{
char *xml = NULL;
}
xml_printf(&retval, &xml, &pos, &size, \
- "l<target version=\"1.0\">\n<architecture>arm</architecture>\n</target>\n");
+ "l < target version=\"1.0\">\n < architecture > arm</architecture>\n</target>\n");
if (retval != ERROR_OK)
{
return ERROR_OK;
}
-int gdb_v_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+static int gdb_v_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
{
- gdb_connection_t *gdb_connection = connection->priv;
- gdb_service_t *gdb_service = connection->service->priv;
+ struct gdb_connection *gdb_connection = connection->priv;
+ struct gdb_service *gdb_service = connection->service->priv;
int result;
/* if flash programming disabled - send a empty reply */
flash_set_dirty();
/* perform any target specific operations before the erase */
- target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_ERASE_START);
- result = flash_erase_address_range(gdb_service->target, addr, length );
- target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_ERASE_END);
+ target_call_event_callbacks(gdb_service->target,
+ TARGET_EVENT_GDB_FLASH_ERASE_START);
+
+ /* vFlashErase:addr,length messages require region start and
+ * end to be "block" aligned ... if padding is ever needed,
+ * GDB will have become dangerously confused.
+ */
+ result = flash_erase_address_range(gdb_service->target,
+ false, addr, length);
+
+ /* perform any target specific operations after the erase */
+ target_call_event_callbacks(gdb_service->target,
+ TARGET_EVENT_GDB_FLASH_ERASE_END);
/* perform erase */
if (result != ERROR_OK)
/* create a new image if there isn't already one */
if (gdb_connection->vflash_image == NULL)
{
- gdb_connection->vflash_image = malloc(sizeof(image_t));
+ gdb_connection->vflash_image = malloc(sizeof(struct image));
image_open(gdb_connection->vflash_image, "", "build");
}
/* create new section with content from packet buffer */
- if((retval = image_add_section(gdb_connection->vflash_image, addr, length, 0x0, (u8*)parse)) != ERROR_OK)
+ if ((retval = image_add_section(gdb_connection->vflash_image, addr, length, 0x0, (uint8_t*)parse)) != ERROR_OK)
{
return retval;
}
if (!strcmp(packet, "vFlashDone"))
{
- u32 written;
+ uint32_t written;
/* process the flashing buffer. No need to erase as GDB
* always issues a vFlashErase first. */
target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_WRITE_START);
result = flash_write(gdb_service->target, gdb_connection->vflash_image, &written, 0);
target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_WRITE_END);
- if ( result != ERROR_OK)
+ if (result != ERROR_OK)
{
if (result == ERROR_FLASH_DST_OUT_OF_BANK)
gdb_put_packet(connection, "E.memtype", 9);
}
else
{
- LOG_DEBUG("wrote %u bytes from vFlash image to flash", written);
+ LOG_DEBUG("wrote %u bytes from vFlash image to flash", (unsigned)written);
gdb_put_packet(connection, "OK", 2);
}
return ERROR_OK;
}
-int gdb_detach(connection_t *connection, target_t *target)
+static int gdb_detach(struct connection *connection, struct target *target)
{
+ struct gdb_service *gdb_service = connection->service->priv;
- switch( detach_mode )
- {
- case GDB_DETACH_RESUME:
- target_handle_event( target, TARGET_EVENT_OLD_pre_resume );
- target_resume(target, 1, 0, 1, 0);
- break;
-
- case GDB_DETACH_RESET:
- /* FIX?? make this configurable?? */
- target_process_reset(connection->cmd_ctx, RESET_HALT);
- break;
+ target_call_event_callbacks(gdb_service->target,
+ TARGET_EVENT_GDB_DETACH);
- case GDB_DETACH_HALT:
- target_halt(target);
- break;
-
- case GDB_DETACH_NOTHING:
- break;
- }
-
- gdb_put_packet(connection, "OK", 2);
- return ERROR_OK;
+ return gdb_put_packet(connection, "OK", 2);
}
-static void gdb_log_callback(void *priv, const char *file, int line,
+static void gdb_log_callback(void *priv, const char *file, unsigned line,
const char *function, const char *string)
{
- connection_t *connection = priv;
- gdb_connection_t *gdb_con = connection->priv;
+ struct connection *connection = priv;
+ struct gdb_connection *gdb_con = connection->priv;
if (gdb_con->busy)
{
gdb_output_con(connection, string);
}
-/* Do not allocate this on the stack */
-char gdb_packet_buffer[GDB_BUFFER_SIZE];
-
-static void gdb_sig_halted(connection_t *connection)
+static void gdb_sig_halted(struct connection *connection)
{
char sig_reply[4];
snprintf(sig_reply, 4, "T%2.2x", 2);
}
-int gdb_input_inner(connection_t *connection)
+static int gdb_input_inner(struct connection *connection)
{
- gdb_service_t *gdb_service = connection->service->priv;
- target_t *target = gdb_service->target;
- char *packet=gdb_packet_buffer;
+ /* Do not allocate this on the stack */
+ static char gdb_packet_buffer[GDB_BUFFER_SIZE];
+
+ struct gdb_service *gdb_service = connection->service->priv;
+ struct target *target = gdb_service->target;
+ char *packet = gdb_packet_buffer;
int packet_size;
int retval;
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
static int extended_protocol = 0;
/* drain input buffer */
do
{
packet_size = GDB_BUFFER_SIZE-1;
- if ((retval = gdb_get_packet(connection, packet, &packet_size)) != ERROR_OK)
- {
+ retval = gdb_get_packet(connection, packet, &packet_size);
+ if (retval != ERROR_OK)
return retval;
- }
/* terminate with zero */
packet[packet_size] = 0;
- if( LOG_LEVEL_IS( LOG_LVL_DEBUG ) ){
- if( packet[0] == 'X' ){
+ if (LOG_LEVEL_IS(LOG_LVL_DEBUG)) {
+ if (packet[0] == 'X') {
// binary packets spew junk into the debug log stream
char buf[ 50 ];
int x;
- for( x = 0 ; (x < 49) && (packet[x] != ':') ; x++ ){
+ for (x = 0 ; (x < 49) && (packet[x] != ':') ; x++) {
buf[x] = packet[x];
}
buf[x] = 0;
- LOG_DEBUG("received packet: '%s:<binary-data>'", buf );
+ LOG_DEBUG("received packet: '%s:<binary-data>'", buf);
} else {
- LOG_DEBUG("received packet: '%s'", packet );
+ LOG_DEBUG("received packet: '%s'", packet);
}
}
break;
case 'q':
case 'Q':
- retval = gdb_query_packet(connection, target, packet, packet_size);
+ retval = gdb_query_packet(connection,
+ target, packet,
+ packet_size);
break;
case 'g':
- retval = gdb_get_registers_packet(connection, target, packet, packet_size);
+ retval = gdb_get_registers_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'G':
- retval = gdb_set_registers_packet(connection, target, packet, packet_size);
+ retval = gdb_set_registers_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'p':
- retval = gdb_get_register_packet(connection, target, packet, packet_size);
+ retval = gdb_get_register_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'P':
- retval = gdb_set_register_packet(connection, target, packet, packet_size);
+ retval = gdb_set_register_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'm':
- retval = gdb_read_memory_packet(connection, target, packet, packet_size);
+ retval = gdb_read_memory_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'M':
- retval = gdb_write_memory_packet(connection, target, packet, packet_size);
+ retval = gdb_write_memory_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'z':
case 'Z':
retval = gdb_breakpoint_watchpoint_packet(connection, target, packet, packet_size);
break;
case '?':
- gdb_last_signal_packet(connection, target, packet, packet_size);
+ gdb_last_signal_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'c':
case 's':
{
- if (target->state != TARGET_HALTED)
+ int retval = ERROR_OK;
+
+ struct gdb_connection *gdb_con = connection->priv;
+ log_add_callback(gdb_log_callback, connection);
+
+ if (gdb_con->mem_write_error)
+ {
+ LOG_ERROR("Memory write failure!");
+
+ /* now that we have reported the memory write error, we can clear the condition */
+ gdb_con->mem_write_error = false;
+ }
+
+ bool nostep = false;
+ bool already_running = false;
+ if (target->state == TARGET_RUNNING)
+ {
+ LOG_WARNING("WARNING! The target is already running. "
+ "All changes GDB did to registers will be discarded! "
+ "Waiting for target to halt.");
+ already_running = true;
+ } else if (target->state != TARGET_HALTED)
+ {
+ LOG_WARNING("The target is not in the halted nor running stated, stepi/continue ignored.");
+ nostep = true;
+ } else if ((packet[0] == 's') && gdb_con->sync)
+ {
+ /* Hmm..... when you issue a continue in GDB, then a "stepi" is
+ * sent by GDB first to OpenOCD, thus defeating the check to
+ * make only the single stepping have the sync feature...
+ */
+ nostep = true;
+ LOG_WARNING("stepi ignored. GDB will now fetch the register state from the target.");
+ }
+ gdb_con->sync = false;
+
+ if ((retval!=ERROR_OK) || (!already_running && nostep))
{
- /* If the target isn't in the halted state, then we can't
+ /* Either the target isn't in the halted state, then we can't
* step/continue. This might be early setup, etc.
+ *
+ * Or we want to allow GDB to pick up a fresh set of
+ * register values without modifying the target state.
+ *
*/
gdb_sig_halted(connection);
+
+ /* stop forwarding log packets! */
+ log_remove_callback(gdb_log_callback, connection);
} else
{
/* We're running/stepping, in which case we can
* forward log output until the target is halted
*/
- gdb_connection_t *gdb_con = connection->priv;
gdb_con->frontend_state = TARGET_RUNNING;
- log_add_callback(gdb_log_callback, connection);
target_call_event_callbacks(target, TARGET_EVENT_GDB_START);
- int retval=gdb_step_continue_packet(connection, target, packet, packet_size);
- if (retval!=ERROR_OK)
+
+ if (!already_running)
{
- /* we'll never receive a halted condition... issue a false one.. */
- gdb_frontend_halted(target, connection);
+ int retval = gdb_step_continue_packet(connection, target, packet, packet_size);
+ if (retval != ERROR_OK)
+ {
+ /* we'll never receive a halted condition... issue a false one.. */
+ gdb_frontend_halted(target, connection);
+ }
}
}
}
break;
case 'v':
- retval = gdb_v_packet(connection, target, packet, packet_size);
+ retval = gdb_v_packet(
+ connection, target,
+ packet, packet_size);
break;
case 'D':
retval = gdb_detach(connection, target);
extended_protocol = 0;
break;
case 'X':
- if ((retval = gdb_write_memory_binary_packet(connection, target, packet, packet_size)) != ERROR_OK)
+ retval = gdb_write_memory_binary_packet(
+ connection, target,
+ packet, packet_size);
+ if (retval != ERROR_OK)
return retval;
break;
case 'k':
/* handle extended restart packet */
breakpoint_clear_target(gdb_service->target);
watchpoint_clear_target(gdb_service->target);
- command_run_linef(connection->cmd_ctx, "ocd_gdb_restart %d", get_num_by_target(target));
+ command_run_linef(connection->cmd_ctx,
+ "ocd_gdb_restart %s",
+ target_name(target));
break;
default:
- /* ignore unkown packets */
+ /* ignore unknown packets */
LOG_DEBUG("ignoring 0x%2.2x packet", packet[0]);
gdb_put_packet(connection, NULL, 0);
break;
{
if (target->state == TARGET_RUNNING)
{
- target_halt(target);
+ retval = target_halt(target);
+ if (retval != ERROR_OK)
+ {
+ target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
+ }
gdb_con->ctrl_c = 0;
+ } else
+ {
+ LOG_INFO("The target is not running when halt was requested, stopping GDB.");
+ target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
}
}
return ERROR_OK;
}
-int gdb_input(connection_t *connection)
+static int gdb_input(struct connection *connection)
{
int retval = gdb_input_inner(connection);
- gdb_connection_t *gdb_con = connection->priv;
+ struct gdb_connection *gdb_con = connection->priv;
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return retval;
return ERROR_OK;
}
-int gdb_init(void)
+static int gdb_target_start(struct target *target, uint16_t port)
{
- gdb_service_t *gdb_service;
- target_t *target = all_targets;
+ bool use_pipes = 0 == port;
+ struct gdb_service *gdb_service = malloc(sizeof(struct gdb_service));
+ if (NULL == gdb_service)
+ return -ENOMEM;
- if (!target)
- {
- LOG_WARNING("no gdb ports allocated as no target has been specified");
- return ERROR_OK;
- }
+ gdb_service->target = target;
+
+ add_service("gdb", use_pipes ? CONNECTION_PIPE : CONNECTION_TCP,
+ port, 1, &gdb_new_connection, &gdb_input,
+ &gdb_connection_closed, gdb_service);
+ const char *name = target_name(target);
+ if (use_pipes)
+ LOG_DEBUG("gdb service for target '%s' using pipes", name);
+ else
+ LOG_DEBUG("gdb service for target '%s' on TCP port %u", name, port);
+ return ERROR_OK;
+}
+
+static int gdb_target_add_one(struct target *target)
+{
if (gdb_port == 0 && server_use_pipes == 0)
{
- LOG_WARNING("no gdb port specified, using default port 3333");
- gdb_port = 3333;
+ LOG_INFO("gdb port disabled");
+ return ERROR_OK;
}
+ if (0 == gdb_port_next)
+ gdb_port_next = gdb_port;
- if (server_use_pipes)
+ bool use_pipes = server_use_pipes;
+ static bool server_started_with_pipes = false;
+ if (server_started_with_pipes)
{
- /* only a single gdb connection when using a pipe */
-
- gdb_service = malloc(sizeof(gdb_service_t));
- gdb_service->target = target;
-
- add_service("gdb", CONNECTION_PIPE, 0, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
+ LOG_WARNING("gdb service permits one target when using pipes");
+ if (0 == gdb_port)
+ return ERROR_OK;
- LOG_DEBUG("gdb service for target %s using pipes", target->type->name);
+ use_pipes = false;
}
- else
- {
- while (target)
- {
- gdb_service = malloc(sizeof(gdb_service_t));
- gdb_service->target = target;
- add_service("gdb", CONNECTION_TCP, gdb_port + target->target_number, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
-
- LOG_DEBUG("gdb service for target %s at port %i", target->type->name, gdb_port + target->target_number);
- target = target->next;
- }
+ int e = gdb_target_start(target, use_pipes ? 0 : gdb_port_next);
+ if (ERROR_OK == e)
+ {
+ server_started_with_pipes |= use_pipes;
+ gdb_port_next++;
}
-
- return ERROR_OK;
+ return e;
}
-/* daemon configuration command gdb_port */
-int handle_gdb_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int gdb_target_add_all(struct target *target)
{
- if (argc == 0)
+ if (NULL == target)
{
- command_print(cmd_ctx, "%d", gdb_port);
+ LOG_WARNING("gdb services need one or more targets defined");
return ERROR_OK;
}
- /* only if the port wasn't overwritten by cmdline */
- if (gdb_port == 0)
- gdb_port = strtoul(args[0], NULL, 0);
+ while (NULL != target)
+ {
+ int retval = gdb_target_add_one(target);
+ if (ERROR_OK != retval)
+ return retval;
+
+ target = target->next;
+ }
return ERROR_OK;
}
-int handle_gdb_detach_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_gdb_sync_command)
{
- if (argc == 1)
+ if (CMD_ARGC != 0)
{
- if (strcmp(args[0], "resume") == 0)
- {
- detach_mode = GDB_DETACH_RESUME;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "reset") == 0)
- {
- detach_mode = GDB_DETACH_RESET;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "halt") == 0)
- {
- detach_mode = GDB_DETACH_HALT;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "nothing") == 0)
- {
- detach_mode = GDB_DETACH_NOTHING;
- return ERROR_OK;
- }
- else
- LOG_WARNING("invalid gdb_detach configuration directive: %s", args[0]);
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (current_gdb_connection == NULL)
+ {
+ command_print(CMD_CTX,
+ "gdb_sync command can only be run from within gdb using \"monitor gdb_sync\"");
+ return ERROR_FAIL;
}
- return ERROR_COMMAND_SYNTAX_ERROR;
+ current_gdb_connection->sync = true;
+
+ return ERROR_OK;
}
-int handle_gdb_memory_map_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+/* daemon configuration command gdb_port */
+COMMAND_HANDLER(handle_gdb_port_command)
{
- if (argc == 1)
- {
- if (strcmp(args[0], "enable") == 0)
- {
- gdb_use_memory_map = 1;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "disable") == 0)
- {
- gdb_use_memory_map = 0;
- return ERROR_OK;
- }
- else
- LOG_WARNING("invalid gdb_memory_map configuration directive %s", args[0]);
- }
+ int retval = CALL_COMMAND_HANDLER(server_port_command, &gdb_port);
+ if (ERROR_OK == retval)
+ gdb_port_next = gdb_port;
+ return retval;
+}
- return ERROR_COMMAND_SYNTAX_ERROR;
+COMMAND_HANDLER(handle_gdb_memory_map_command)
+{
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], gdb_use_memory_map);
+ return ERROR_OK;
}
-int handle_gdb_flash_program_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_gdb_flash_program_command)
{
- if (argc == 1)
- {
- if (strcmp(args[0], "enable") == 0)
- {
- gdb_flash_program = 1;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "disable") == 0)
- {
- gdb_flash_program = 0;
- return ERROR_OK;
- }
- else
- LOG_WARNING("invalid gdb_flash_program configuration directive: %s", args[0]);
- }
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- return ERROR_COMMAND_SYNTAX_ERROR;
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], gdb_flash_program);
+ return ERROR_OK;
}
-int handle_gdb_report_data_abort_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_gdb_report_data_abort_command)
{
- if (argc == 1)
- {
- if (strcmp(args[0], "enable") == 0)
- {
- gdb_report_data_abort = 1;
- return ERROR_OK;
- }
- else if (strcmp(args[0], "disable") == 0)
- {
- gdb_report_data_abort = 0;
- return ERROR_OK;
- }
- else
- LOG_WARNING("invalid gdb_report_data_abort configuration directive: %s", args[0]);
- }
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- return ERROR_COMMAND_SYNTAX_ERROR;
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], gdb_report_data_abort);
+ return ERROR_OK;
}
/* gdb_breakpoint_override */
-int handle_gdb_breakpoint_override_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_gdb_breakpoint_override_command)
{
- if (argc == 0)
+ if (CMD_ARGC == 0)
{
- } else if (argc==1)
+ } else if (CMD_ARGC == 1)
{
gdb_breakpoint_override = 1;
- if (strcmp(args[0], "hard")==0)
+ if (strcmp(CMD_ARGV[0], "hard") == 0)
{
- gdb_breakpoint_override_type=BKPT_HARD;
- } else if (strcmp(args[0], "soft")==0)
+ gdb_breakpoint_override_type = BKPT_HARD;
+ } else if (strcmp(CMD_ARGV[0], "soft") == 0)
{
- gdb_breakpoint_override_type=BKPT_SOFT;
- } else if (strcmp(args[0], "disable") == 0)
+ gdb_breakpoint_override_type = BKPT_SOFT;
+ } else if (strcmp(CMD_ARGV[0], "disable") == 0)
{
gdb_breakpoint_override = 0;
}
}
if (gdb_breakpoint_override)
{
- LOG_USER("force %s breakpoints", (gdb_breakpoint_override_type==BKPT_HARD)?"hard":"soft");
+ LOG_USER("force %s breakpoints", (gdb_breakpoint_override_type == BKPT_HARD)?"hard":"soft");
} else
{
- LOG_USER("breakpoint type is not overriden");
+ LOG_USER("breakpoint type is not overridden");
}
return ERROR_OK;
}
-int gdb_register_commands(command_context_t *command_context)
+static const struct command_registration gdb_command_handlers[] = {
+ {
+ .name = "gdb_sync",
+ .handler = handle_gdb_sync_command,
+ .mode = COMMAND_ANY,
+ .help = "next stepi will return immediately allowing "
+ "GDB to fetch register state without affecting "
+ "target state",
+ },
+ {
+ .name = "gdb_port",
+ .handler = handle_gdb_port_command,
+ .mode = COMMAND_ANY,
+ .help = "Display or specify base port on which to listen "
+ "for incoming GDB connections. "
+ "No arguments reports GDB port; zero disables.",
+ .usage = "[port_num]",
+ },
+ {
+ .name = "gdb_memory_map",
+ .handler = handle_gdb_memory_map_command,
+ .mode = COMMAND_CONFIG,
+ .help = "enable or disable memory map",
+ .usage = "('enable'|'disable')"
+ },
+ {
+ .name = "gdb_flash_program",
+ .handler = handle_gdb_flash_program_command,
+ .mode = COMMAND_CONFIG,
+ .help = "enable or disable flash program",
+ .usage = "('enable'|'disable')"
+ },
+ {
+ .name = "gdb_report_data_abort",
+ .handler = handle_gdb_report_data_abort_command,
+ .mode = COMMAND_CONFIG,
+ .help = "enable or disable reporting data aborts",
+ .usage = "('enable'|'disable')"
+ },
+ {
+ .name = "gdb_breakpoint_override",
+ .handler = handle_gdb_breakpoint_override_command,
+ .mode = COMMAND_ANY,
+ .help = "Display or specify type of breakpoint "
+ "to be used by gdb 'break' commands.",
+ .usage = "('hard'|'soft'|'disable')"
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+int gdb_register_commands(struct command_context *cmd_ctx)
{
- register_command(command_context, NULL, "gdb_port", handle_gdb_port_command,
- COMMAND_CONFIG, "daemon configuration command gdb_port");
- register_command(command_context, NULL, "gdb_detach", handle_gdb_detach_command,
- COMMAND_CONFIG, "");
- register_command(command_context, NULL, "gdb_memory_map", handle_gdb_memory_map_command,
- COMMAND_CONFIG, "enable or disable memory map");
- register_command(command_context, NULL, "gdb_flash_program", handle_gdb_flash_program_command,
- COMMAND_CONFIG, "enable or disable flash program");
- register_command(command_context, NULL, "gdb_report_data_abort", handle_gdb_report_data_abort_command,
- COMMAND_CONFIG, "enable or disable report data");
- register_command(command_context, NULL, "gdb_breakpoint_override", handle_gdb_breakpoint_override_command,
- COMMAND_EXEC, "hard/soft/disabled - force breakpoint type for gdb 'break' commands."
- "The raison d'etre for this option is to support GDB GUI's without "
- "a hard/soft breakpoint concept where the default OpenOCD behaviour "
- "is not sufficient");
- return ERROR_OK;
+ return register_commands(cmd_ctx, NULL, gdb_command_handlers);
}
Code Review / openocd.git / blobdiff